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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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660
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4 * Copyright (C) Nginx, Inc.
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28
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5 */
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6
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7
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8 #include <ngx_config.h>
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9 #include <ngx_core.h>
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10 #include <ngx_http.h>
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11
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12
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464
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13 #if (NGX_HTTP_CACHE)
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14 static ngx_int_t ngx_http_upstream_cache(ngx_http_request_t *r,
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15 ngx_http_upstream_t *u);
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16 static ngx_int_t ngx_http_upstream_cache_send(ngx_http_request_t *r,
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17 ngx_http_upstream_t *u);
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502
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18 static ngx_int_t ngx_http_upstream_cache_status(ngx_http_request_t *r,
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19 ngx_http_variable_value_t *v, uintptr_t data);
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464
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20 #endif
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21
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518
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22 static void ngx_http_upstream_init_request(ngx_http_request_t *r);
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348
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23 static void ngx_http_upstream_resolve_handler(ngx_resolver_ctx_t *ctx);
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58
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24 static void ngx_http_upstream_rd_check_broken_connection(ngx_http_request_t *r);
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25 static void ngx_http_upstream_wr_check_broken_connection(ngx_http_request_t *r);
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26 static void ngx_http_upstream_check_broken_connection(ngx_http_request_t *r,
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27 ngx_event_t *ev);
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28
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28 static void ngx_http_upstream_connect(ngx_http_request_t *r,
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36
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29 ngx_http_upstream_t *u);
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58
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30 static ngx_int_t ngx_http_upstream_reinit(ngx_http_request_t *r,
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36
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31 ngx_http_upstream_t *u);
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28
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32 static void ngx_http_upstream_send_request(ngx_http_request_t *r,
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36
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33 ngx_http_upstream_t *u);
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430
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34 static void ngx_http_upstream_send_request_handler(ngx_http_request_t *r,
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35 ngx_http_upstream_t *u);
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36 static void ngx_http_upstream_process_header(ngx_http_request_t *r,
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37 ngx_http_upstream_t *u);
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412
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38 static ngx_int_t ngx_http_upstream_test_next(ngx_http_request_t *r,
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39 ngx_http_upstream_t *u);
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40 static ngx_int_t ngx_http_upstream_intercept_errors(ngx_http_request_t *r,
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41 ngx_http_upstream_t *u);
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294
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42 static ngx_int_t ngx_http_upstream_test_connect(ngx_connection_t *c);
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464
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43 static ngx_int_t ngx_http_upstream_process_headers(ngx_http_request_t *r,
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44 ngx_http_upstream_t *u);
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430
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45 static void ngx_http_upstream_process_body_in_memory(ngx_http_request_t *r,
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46 ngx_http_upstream_t *u);
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28
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47 static void ngx_http_upstream_send_response(ngx_http_request_t *r,
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36
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48 ngx_http_upstream_t *u);
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130
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49 static void
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50 ngx_http_upstream_process_non_buffered_downstream(ngx_http_request_t *r);
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430
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51 static void
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52 ngx_http_upstream_process_non_buffered_upstream(ngx_http_request_t *r,
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53 ngx_http_upstream_t *u);
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428
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54 static void
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55 ngx_http_upstream_process_non_buffered_request(ngx_http_request_t *r,
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56 ngx_uint_t do_write);
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130
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57 static ngx_int_t ngx_http_upstream_non_buffered_filter_init(void *data);
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58 static ngx_int_t ngx_http_upstream_non_buffered_filter(void *data,
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59 ssize_t bytes);
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58
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60 static void ngx_http_upstream_process_downstream(ngx_http_request_t *r);
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430
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61 static void ngx_http_upstream_process_upstream(ngx_http_request_t *r,
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62 ngx_http_upstream_t *u);
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428
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63 static void ngx_http_upstream_process_request(ngx_http_request_t *r);
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318
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64 static void ngx_http_upstream_store(ngx_http_request_t *r,
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65 ngx_http_upstream_t *u);
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430
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66 static void ngx_http_upstream_dummy_handler(ngx_http_request_t *r,
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67 ngx_http_upstream_t *u);
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28
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68 static void ngx_http_upstream_next(ngx_http_request_t *r,
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36
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69 ngx_http_upstream_t *u, ngx_uint_t ft_type);
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118
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70 static void ngx_http_upstream_cleanup(void *data);
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28
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71 static void ngx_http_upstream_finalize_request(ngx_http_request_t *r,
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36
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72 ngx_http_upstream_t *u, ngx_int_t rc);
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28
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73
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58
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74 static ngx_int_t ngx_http_upstream_process_header_line(ngx_http_request_t *r,
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75 ngx_table_elt_t *h, ngx_uint_t offset);
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640
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76 static ngx_int_t ngx_http_upstream_process_content_length(ngx_http_request_t *r,
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77 ngx_table_elt_t *h, ngx_uint_t offset);
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584
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78 static ngx_int_t ngx_http_upstream_process_set_cookie(ngx_http_request_t *r,
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79 ngx_table_elt_t *h, ngx_uint_t offset);
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58
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80 static ngx_int_t
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472
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81 ngx_http_upstream_process_cache_control(ngx_http_request_t *r,
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58
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82 ngx_table_elt_t *h, ngx_uint_t offset);
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83 static ngx_int_t ngx_http_upstream_ignore_header_line(ngx_http_request_t *r,
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84 ngx_table_elt_t *h, ngx_uint_t offset);
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472
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85 static ngx_int_t ngx_http_upstream_process_expires(ngx_http_request_t *r,
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86 ngx_table_elt_t *h, ngx_uint_t offset);
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87 static ngx_int_t ngx_http_upstream_process_accel_expires(ngx_http_request_t *r,
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88 ngx_table_elt_t *h, ngx_uint_t offset);
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76
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89 static ngx_int_t ngx_http_upstream_process_limit_rate(ngx_http_request_t *r,
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90 ngx_table_elt_t *h, ngx_uint_t offset);
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198
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91 static ngx_int_t ngx_http_upstream_process_buffering(ngx_http_request_t *r,
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58
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92 ngx_table_elt_t *h, ngx_uint_t offset);
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206
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93 static ngx_int_t ngx_http_upstream_process_charset(ngx_http_request_t *r,
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94 ngx_table_elt_t *h, ngx_uint_t offset);
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640
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95 static ngx_int_t ngx_http_upstream_process_connection(ngx_http_request_t *r,
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96 ngx_table_elt_t *h, ngx_uint_t offset);
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97 static ngx_int_t
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98 ngx_http_upstream_process_transfer_encoding(ngx_http_request_t *r,
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99 ngx_table_elt_t *h, ngx_uint_t offset);
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198
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100 static ngx_int_t ngx_http_upstream_copy_header_line(ngx_http_request_t *r,
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58
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101 ngx_table_elt_t *h, ngx_uint_t offset);
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102 static ngx_int_t
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103 ngx_http_upstream_copy_multi_header_lines(ngx_http_request_t *r,
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104 ngx_table_elt_t *h, ngx_uint_t offset);
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105 static ngx_int_t ngx_http_upstream_copy_content_type(ngx_http_request_t *r,
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106 ngx_table_elt_t *h, ngx_uint_t offset);
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464
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107 static ngx_int_t ngx_http_upstream_copy_last_modified(ngx_http_request_t *r,
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108 ngx_table_elt_t *h, ngx_uint_t offset);
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58
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109 static ngx_int_t ngx_http_upstream_rewrite_location(ngx_http_request_t *r,
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110 ngx_table_elt_t *h, ngx_uint_t offset);
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111 static ngx_int_t ngx_http_upstream_rewrite_refresh(ngx_http_request_t *r,
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112 ngx_table_elt_t *h, ngx_uint_t offset);
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662
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113 static ngx_int_t ngx_http_upstream_rewrite_set_cookie(ngx_http_request_t *r,
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114 ngx_table_elt_t *h, ngx_uint_t offset);
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464
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115 static ngx_int_t ngx_http_upstream_copy_allow_ranges(ngx_http_request_t *r,
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116 ngx_table_elt_t *h, ngx_uint_t offset);
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117
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58
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118 #if (NGX_HTTP_GZIP)
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119 static ngx_int_t ngx_http_upstream_copy_content_encoding(ngx_http_request_t *r,
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120 ngx_table_elt_t *h, ngx_uint_t offset);
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121 #endif
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122
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122
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123 static ngx_int_t ngx_http_upstream_add_variables(ngx_conf_t *cf);
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298
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124 static ngx_int_t ngx_http_upstream_addr_variable(ngx_http_request_t *r,
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125 ngx_http_variable_value_t *v, uintptr_t data);
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122
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126 static ngx_int_t ngx_http_upstream_status_variable(ngx_http_request_t *r,
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127 ngx_http_variable_value_t *v, uintptr_t data);
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128 static ngx_int_t ngx_http_upstream_response_time_variable(ngx_http_request_t *r,
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129 ngx_http_variable_value_t *v, uintptr_t data);
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430
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130 static ngx_int_t ngx_http_upstream_response_length_variable(
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131 ngx_http_request_t *r, ngx_http_variable_value_t *v, uintptr_t data);
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122
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132
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200
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133 static char *ngx_http_upstream(ngx_conf_t *cf, ngx_command_t *cmd, void *dummy);
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134 static char *ngx_http_upstream_server(ngx_conf_t *cf, ngx_command_t *cmd,
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135 void *conf);
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136
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58
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137 static void *ngx_http_upstream_create_main_conf(ngx_conf_t *cf);
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200
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138 static char *ngx_http_upstream_init_main_conf(ngx_conf_t *cf, void *conf);
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58
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139
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126
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140 #if (NGX_HTTP_SSL)
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140
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141 static void ngx_http_upstream_ssl_init_connection(ngx_http_request_t *,
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142 ngx_http_upstream_t *u, ngx_connection_t *c);
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126
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143 static void ngx_http_upstream_ssl_handshake(ngx_connection_t *c);
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144 #endif
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145
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58
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146
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147 ngx_http_upstream_header_t ngx_http_upstream_headers_in[] = {
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148
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149 { ngx_string("Status"),
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150 ngx_http_upstream_process_header_line,
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151 offsetof(ngx_http_upstream_headers_in_t, status),
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198
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152 ngx_http_upstream_copy_header_line, 0, 0 },
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58
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153
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154 { ngx_string("Content-Type"),
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155 ngx_http_upstream_process_header_line,
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156 offsetof(ngx_http_upstream_headers_in_t, content_type),
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222
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157 ngx_http_upstream_copy_content_type, 0, 1 },
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58
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158
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159 { ngx_string("Content-Length"),
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640
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160 ngx_http_upstream_process_content_length,
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58
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161 offsetof(ngx_http_upstream_headers_in_t, content_length),
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640
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162 ngx_http_upstream_ignore_header_line, 0, 0 },
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58
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163
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164 { ngx_string("Date"),
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165 ngx_http_upstream_process_header_line,
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166 offsetof(ngx_http_upstream_headers_in_t, date),
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198
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167 ngx_http_upstream_copy_header_line,
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168 offsetof(ngx_http_headers_out_t, date), 0 },
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58
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169
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318
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170 { ngx_string("Last-Modified"),
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171 ngx_http_upstream_process_header_line,
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172 offsetof(ngx_http_upstream_headers_in_t, last_modified),
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464
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173 ngx_http_upstream_copy_last_modified, 0, 0 },
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318
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174
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516
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175 { ngx_string("ETag"),
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176 ngx_http_upstream_process_header_line,
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177 offsetof(ngx_http_upstream_headers_in_t, etag),
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178 ngx_http_upstream_copy_header_line,
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179 offsetof(ngx_http_headers_out_t, etag), 0 },
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180
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58
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181 { ngx_string("Server"),
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182 ngx_http_upstream_process_header_line,
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183 offsetof(ngx_http_upstream_headers_in_t, server),
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198
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184 ngx_http_upstream_copy_header_line,
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185 offsetof(ngx_http_headers_out_t, server), 0 },
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58
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186
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78
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187 { ngx_string("WWW-Authenticate"),
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188 ngx_http_upstream_process_header_line,
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189 offsetof(ngx_http_upstream_headers_in_t, www_authenticate),
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190 ngx_http_upstream_copy_header_line, 0, 0 },
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191
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58
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192 { ngx_string("Location"),
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392
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193 ngx_http_upstream_process_header_line,
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194 offsetof(ngx_http_upstream_headers_in_t, location),
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64
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195 ngx_http_upstream_rewrite_location, 0, 0 },
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58
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196
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197 { ngx_string("Refresh"),
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198 ngx_http_upstream_ignore_header_line, 0,
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64
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199 ngx_http_upstream_rewrite_refresh, 0, 0 },
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200
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201 { ngx_string("Set-Cookie"),
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584
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202 ngx_http_upstream_process_set_cookie, 0,
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662
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203 ngx_http_upstream_rewrite_set_cookie, 0, 1 },
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80
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204
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205 { ngx_string("Content-Disposition"),
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206 ngx_http_upstream_ignore_header_line, 0,
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207 ngx_http_upstream_copy_header_line, 0, 1 },
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58
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208
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209 { ngx_string("Cache-Control"),
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472
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210 ngx_http_upstream_process_cache_control, 0,
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58
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211 ngx_http_upstream_copy_multi_header_lines,
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64
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212 offsetof(ngx_http_headers_out_t, cache_control), 1 },
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58
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213
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122
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214 { ngx_string("Expires"),
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472
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215 ngx_http_upstream_process_expires, 0,
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122
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216 ngx_http_upstream_copy_header_line,
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217 offsetof(ngx_http_headers_out_t, expires), 1 },
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218
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126
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219 { ngx_string("Accept-Ranges"),
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220 ngx_http_upstream_process_header_line,
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221 offsetof(ngx_http_upstream_headers_in_t, accept_ranges),
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464
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222 ngx_http_upstream_copy_allow_ranges,
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126
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223 offsetof(ngx_http_headers_out_t, accept_ranges), 1 },
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224
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58
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225 { ngx_string("Connection"),
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640
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226 ngx_http_upstream_process_connection, 0,
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64
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227 ngx_http_upstream_ignore_header_line, 0, 0 },
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58
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228
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190
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229 { ngx_string("Keep-Alive"),
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230 ngx_http_upstream_ignore_header_line, 0,
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231 ngx_http_upstream_ignore_header_line, 0, 0 },
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232
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58
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233 { ngx_string("X-Powered-By"),
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234 ngx_http_upstream_ignore_header_line, 0,
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198
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235 ngx_http_upstream_copy_header_line, 0, 0 },
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58
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236
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237 { ngx_string("X-Accel-Expires"),
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472
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238 ngx_http_upstream_process_accel_expires, 0,
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198
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239 ngx_http_upstream_copy_header_line, 0, 0 },
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64
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240
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241 { ngx_string("X-Accel-Redirect"),
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242 ngx_http_upstream_process_header_line,
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243 offsetof(ngx_http_upstream_headers_in_t, x_accel_redirect),
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510
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244 ngx_http_upstream_copy_header_line, 0, 0 },
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58
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245
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76
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246 { ngx_string("X-Accel-Limit-Rate"),
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247 ngx_http_upstream_process_limit_rate, 0,
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510
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248 ngx_http_upstream_copy_header_line, 0, 0 },
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76
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249
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198
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250 { ngx_string("X-Accel-Buffering"),
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251 ngx_http_upstream_process_buffering, 0,
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510
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252 ngx_http_upstream_copy_header_line, 0, 0 },
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198
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253
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206
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254 { ngx_string("X-Accel-Charset"),
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255 ngx_http_upstream_process_charset, 0,
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510
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256 ngx_http_upstream_copy_header_line, 0, 0 },
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206
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257
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640
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258 { ngx_string("Transfer-Encoding"),
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259 ngx_http_upstream_process_transfer_encoding, 0,
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260 ngx_http_upstream_ignore_header_line, 0, 0 },
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261
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58
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262 #if (NGX_HTTP_GZIP)
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263 { ngx_string("Content-Encoding"),
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264 ngx_http_upstream_process_header_line,
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265 offsetof(ngx_http_upstream_headers_in_t, content_encoding),
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64
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266 ngx_http_upstream_copy_content_encoding, 0, 0 },
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58
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267 #endif
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268
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64
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269 { ngx_null_string, NULL, 0, NULL, 0, 0 }
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58
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270 };
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28
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271
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272
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200
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273 static ngx_command_t ngx_http_upstream_commands[] = {
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274
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275 { ngx_string("upstream"),
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276 NGX_HTTP_MAIN_CONF|NGX_CONF_BLOCK|NGX_CONF_TAKE1,
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277 ngx_http_upstream,
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278 0,
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279 0,
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280 NULL },
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281
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282 { ngx_string("server"),
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260
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283 NGX_HTTP_UPS_CONF|NGX_CONF_1MORE,
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200
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284 ngx_http_upstream_server,
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285 NGX_HTTP_SRV_CONF_OFFSET,
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286 0,
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287 NULL },
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288
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|
289 ngx_null_command
|
|
|
290 };
|
|
|
291
|
|
|
292
|
|
|
293 static ngx_http_module_t ngx_http_upstream_module_ctx = {
|
|
122
|
294 ngx_http_upstream_add_variables, /* preconfiguration */
|
|
58
|
295 NULL, /* postconfiguration */
|
|
|
296
|
|
|
297 ngx_http_upstream_create_main_conf, /* create main configuration */
|
|
200
|
298 ngx_http_upstream_init_main_conf, /* init main configuration */
|
|
28
|
299
|
|
|
300 NULL, /* create server configuration */
|
|
|
301 NULL, /* merge server configuration */
|
|
|
302
|
|
|
303 NULL, /* create location configuration */
|
|
|
304 NULL /* merge location configuration */
|
|
|
305 };
|
|
126
|
306
|
|
28
|
307
|
|
|
308 ngx_module_t ngx_http_upstream_module = {
|
|
58
|
309 NGX_MODULE_V1,
|
|
28
|
310 &ngx_http_upstream_module_ctx, /* module context */
|
|
200
|
311 ngx_http_upstream_commands, /* module directives */
|
|
28
|
312 NGX_HTTP_MODULE, /* module type */
|
|
90
|
313 NULL, /* init master */
|
|
28
|
314 NULL, /* init module */
|
|
90
|
315 NULL, /* init process */
|
|
|
316 NULL, /* init thread */
|
|
|
317 NULL, /* exit thread */
|
|
|
318 NULL, /* exit process */
|
|
|
319 NULL, /* exit master */
|
|
|
320 NGX_MODULE_V1_PADDING
|
|
28
|
321 };
|
|
|
322
|
|
|
323
|
|
122
|
324 static ngx_http_variable_t ngx_http_upstream_vars[] = {
|
|
|
325
|
|
298
|
326 { ngx_string("upstream_addr"), NULL,
|
|
426
|
327 ngx_http_upstream_addr_variable, 0,
|
|
622
|
328 NGX_HTTP_VAR_NOCACHEABLE, 0 },
|
|
298
|
329
|
|
186
|
330 { ngx_string("upstream_status"), NULL,
|
|
426
|
331 ngx_http_upstream_status_variable, 0,
|
|
622
|
332 NGX_HTTP_VAR_NOCACHEABLE, 0 },
|
|
122
|
333
|
|
186
|
334 { ngx_string("upstream_response_time"), NULL,
|
|
426
|
335 ngx_http_upstream_response_time_variable, 0,
|
|
622
|
336 NGX_HTTP_VAR_NOCACHEABLE, 0 },
|
|
122
|
337
|
|
430
|
338 { ngx_string("upstream_response_length"), NULL,
|
|
|
339 ngx_http_upstream_response_length_variable, 0,
|
|
622
|
340 NGX_HTTP_VAR_NOCACHEABLE, 0 },
|
|
430
|
341
|
|
504
|
342 #if (NGX_HTTP_CACHE)
|
|
|
343
|
|
502
|
344 { ngx_string("upstream_cache_status"), NULL,
|
|
|
345 ngx_http_upstream_cache_status, 0,
|
|
622
|
346 NGX_HTTP_VAR_NOCACHEABLE, 0 },
|
|
502
|
347
|
|
504
|
348 #endif
|
|
|
349
|
|
186
|
350 { ngx_null_string, NULL, NULL, 0, 0, 0 }
|
|
122
|
351 };
|
|
|
352
|
|
|
353
|
|
412
|
354 static ngx_http_upstream_next_t ngx_http_upstream_next_errors[] = {
|
|
|
355 { 500, NGX_HTTP_UPSTREAM_FT_HTTP_500 },
|
|
|
356 { 502, NGX_HTTP_UPSTREAM_FT_HTTP_502 },
|
|
|
357 { 503, NGX_HTTP_UPSTREAM_FT_HTTP_503 },
|
|
|
358 { 504, NGX_HTTP_UPSTREAM_FT_HTTP_504 },
|
|
|
359 { 404, NGX_HTTP_UPSTREAM_FT_HTTP_404 },
|
|
|
360 { 0, 0 }
|
|
|
361 };
|
|
|
362
|
|
494
|
363
|
|
|
364 ngx_conf_bitmask_t ngx_http_upstream_cache_method_mask[] = {
|
|
|
365 { ngx_string("GET"), NGX_HTTP_GET},
|
|
|
366 { ngx_string("HEAD"), NGX_HTTP_HEAD },
|
|
|
367 { ngx_string("POST"), NGX_HTTP_POST },
|
|
|
368 { ngx_null_string, 0 }
|
|
|
369 };
|
|
|
370
|
|
|
371
|
|
584
|
372 ngx_conf_bitmask_t ngx_http_upstream_ignore_headers_masks[] = {
|
|
|
373 { ngx_string("X-Accel-Redirect"), NGX_HTTP_UPSTREAM_IGN_XA_REDIRECT },
|
|
|
374 { ngx_string("X-Accel-Expires"), NGX_HTTP_UPSTREAM_IGN_XA_EXPIRES },
|
|
644
|
375 { ngx_string("X-Accel-Limit-Rate"), NGX_HTTP_UPSTREAM_IGN_XA_LIMIT_RATE },
|
|
|
376 { ngx_string("X-Accel-Buffering"), NGX_HTTP_UPSTREAM_IGN_XA_BUFFERING },
|
|
|
377 { ngx_string("X-Accel-Charset"), NGX_HTTP_UPSTREAM_IGN_XA_CHARSET },
|
|
584
|
378 { ngx_string("Expires"), NGX_HTTP_UPSTREAM_IGN_EXPIRES },
|
|
|
379 { ngx_string("Cache-Control"), NGX_HTTP_UPSTREAM_IGN_CACHE_CONTROL },
|
|
|
380 { ngx_string("Set-Cookie"), NGX_HTTP_UPSTREAM_IGN_SET_COOKIE },
|
|
|
381 { ngx_null_string, 0 }
|
|
|
382 };
|
|
|
383
|
|
|
384
|
|
510
|
385 ngx_int_t
|
|
|
386 ngx_http_upstream_create(ngx_http_request_t *r)
|
|
|
387 {
|
|
|
388 ngx_http_upstream_t *u;
|
|
|
389
|
|
|
390 u = r->upstream;
|
|
|
391
|
|
|
392 if (u && u->cleanup) {
|
|
526
|
393 r->main->count++;
|
|
510
|
394 ngx_http_upstream_cleanup(r);
|
|
|
395 }
|
|
|
396
|
|
|
397 u = ngx_pcalloc(r->pool, sizeof(ngx_http_upstream_t));
|
|
|
398 if (u == NULL) {
|
|
|
399 return NGX_ERROR;
|
|
|
400 }
|
|
|
401
|
|
|
402 r->upstream = u;
|
|
|
403
|
|
|
404 u->peer.log = r->connection->log;
|
|
|
405 u->peer.log_error = NGX_ERROR_ERR;
|
|
|
406 #if (NGX_THREADS)
|
|
|
407 u->peer.lock = &r->connection->lock;
|
|
|
408 #endif
|
|
|
409
|
|
518
|
410 #if (NGX_HTTP_CACHE)
|
|
|
411 r->cache = NULL;
|
|
|
412 #endif
|
|
|
413
|
|
640
|
414 u->headers_in.content_length_n = -1;
|
|
|
415
|
|
510
|
416 return NGX_OK;
|
|
|
417 }
|
|
|
418
|
|
|
419
|
|
36
|
420 void
|
|
|
421 ngx_http_upstream_init(ngx_http_request_t *r)
|
|
28
|
422 {
|
|
518
|
423 ngx_connection_t *c;
|
|
28
|
424
|
|
|
425 c = r->connection;
|
|
|
426
|
|
|
427 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
|
428 "http init upstream, client timer: %d", c->read->timer_set);
|
|
|
429
|
|
|
430 if (c->read->timer_set) {
|
|
|
431 ngx_del_timer(c->read);
|
|
|
432 }
|
|
|
433
|
|
|
434 if (ngx_event_flags & NGX_USE_CLEAR_EVENT) {
|
|
|
435
|
|
|
436 if (!c->write->active) {
|
|
80
|
437 if (ngx_add_event(c->write, NGX_WRITE_EVENT, NGX_CLEAR_EVENT)
|
|
|
438 == NGX_ERROR)
|
|
28
|
439 {
|
|
|
440 ngx_http_finalize_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
441 return;
|
|
|
442 }
|
|
|
443 }
|
|
|
444 }
|
|
|
445
|
|
518
|
446 ngx_http_upstream_init_request(r);
|
|
|
447 }
|
|
|
448
|
|
|
449
|
|
|
450 static void
|
|
|
451 ngx_http_upstream_init_request(ngx_http_request_t *r)
|
|
|
452 {
|
|
|
453 ngx_str_t *host;
|
|
|
454 ngx_uint_t i;
|
|
|
455 ngx_resolver_ctx_t *ctx, temp;
|
|
|
456 ngx_http_cleanup_t *cln;
|
|
|
457 ngx_http_upstream_t *u;
|
|
|
458 ngx_http_core_loc_conf_t *clcf;
|
|
|
459 ngx_http_upstream_srv_conf_t *uscf, **uscfp;
|
|
|
460 ngx_http_upstream_main_conf_t *umcf;
|
|
|
461
|
|
|
462 if (r->aio) {
|
|
|
463 return;
|
|
86
|
464 }
|
|
58
|
465
|
|
518
|
466 u = r->upstream;
|
|
|
467
|
|
464
|
468 #if (NGX_HTTP_CACHE)
|
|
|
469
|
|
|
470 if (u->conf->cache) {
|
|
|
471 ngx_int_t rc;
|
|
|
472
|
|
|
473 rc = ngx_http_upstream_cache(r, u);
|
|
|
474
|
|
518
|
475 if (rc == NGX_BUSY) {
|
|
|
476 r->write_event_handler = ngx_http_upstream_init_request;
|
|
|
477 return;
|
|
|
478 }
|
|
|
479
|
|
|
480 r->write_event_handler = ngx_http_request_empty_handler;
|
|
|
481
|
|
464
|
482 if (rc == NGX_DONE) {
|
|
|
483 return;
|
|
|
484 }
|
|
|
485
|
|
|
486 if (rc != NGX_DECLINED) {
|
|
|
487 ngx_http_finalize_request(r, rc);
|
|
|
488 return;
|
|
|
489 }
|
|
|
490 }
|
|
|
491
|
|
|
492 #endif
|
|
|
493
|
|
518
|
494 u->store = (u->conf->store || u->conf->store_lengths);
|
|
|
495
|
|
|
496 if (!u->store && !r->post_action && !u->conf->ignore_client_abort) {
|
|
|
497 r->read_event_handler = ngx_http_upstream_rd_check_broken_connection;
|
|
|
498 r->write_event_handler = ngx_http_upstream_wr_check_broken_connection;
|
|
|
499 }
|
|
|
500
|
|
|
501 if (r->request_body) {
|
|
|
502 u->request_bufs = r->request_body->bufs;
|
|
|
503 }
|
|
|
504
|
|
86
|
505 if (u->create_request(r) != NGX_OK) {
|
|
28
|
506 ngx_http_finalize_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
507 return;
|
|
|
508 }
|
|
|
509
|
|
540
|
510 u->peer.local = u->conf->local;
|
|
|
511
|
|
58
|
512 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
28
|
513
|
|
518
|
514 u->output.alignment = clcf->directio_alignment;
|
|
28
|
515 u->output.pool = r->pool;
|
|
|
516 u->output.bufs.num = 1;
|
|
58
|
517 u->output.bufs.size = clcf->client_body_buffer_size;
|
|
28
|
518 u->output.output_filter = ngx_chain_writer;
|
|
|
519 u->output.filter_ctx = &u->writer;
|
|
|
520
|
|
|
521 u->writer.pool = r->pool;
|
|
|
522
|
|
296
|
523 if (r->upstream_states == NULL) {
|
|
|
524
|
|
|
525 r->upstream_states = ngx_array_create(r->pool, 1,
|
|
|
526 sizeof(ngx_http_upstream_state_t));
|
|
|
527 if (r->upstream_states == NULL) {
|
|
|
528 ngx_http_finalize_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
529 return;
|
|
|
530 }
|
|
|
531
|
|
|
532 } else {
|
|
|
533
|
|
|
534 u->state = ngx_array_push(r->upstream_states);
|
|
|
535 if (u->state == NULL) {
|
|
|
536 ngx_http_upstream_finalize_request(r, u,
|
|
|
537 NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
538 return;
|
|
|
539 }
|
|
|
540
|
|
|
541 ngx_memzero(u->state, sizeof(ngx_http_upstream_state_t));
|
|
28
|
542 }
|
|
|
543
|
|
142
|
544 cln = ngx_http_cleanup_add(r, 0);
|
|
118
|
545 if (cln == NULL) {
|
|
|
546 ngx_http_finalize_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
547 return;
|
|
|
548 }
|
|
|
549
|
|
|
550 cln->handler = ngx_http_upstream_cleanup;
|
|
|
551 cln->data = r;
|
|
|
552 u->cleanup = &cln->handler;
|
|
|
553
|
|
348
|
554 if (u->resolved == NULL) {
|
|
|
555
|
|
|
556 uscf = u->conf->upstream;
|
|
|
557
|
|
|
558 } else {
|
|
|
559
|
|
434
|
560 if (u->resolved->sockaddr) {
|
|
|
561
|
|
|
562 if (ngx_http_upstream_create_round_robin_peer(r, u->resolved)
|
|
|
563 != NGX_OK)
|
|
|
564 {
|
|
530
|
565 ngx_http_upstream_finalize_request(r, u,
|
|
|
566 NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
434
|
567 return;
|
|
|
568 }
|
|
|
569
|
|
|
570 ngx_http_upstream_connect(r, u);
|
|
|
571
|
|
|
572 return;
|
|
|
573 }
|
|
|
574
|
|
356
|
575 host = &u->resolved->host;
|
|
348
|
576
|
|
|
577 umcf = ngx_http_get_module_main_conf(r, ngx_http_upstream_module);
|
|
|
578
|
|
|
579 uscfp = umcf->upstreams.elts;
|
|
|
580
|
|
|
581 for (i = 0; i < umcf->upstreams.nelts; i++) {
|
|
|
582
|
|
|
583 uscf = uscfp[i];
|
|
|
584
|
|
|
585 if (uscf->host.len == host->len
|
|
416
|
586 && ((uscf->port == 0 && u->resolved->no_port)
|
|
366
|
587 || uscf->port == u->resolved->port)
|
|
348
|
588 && ngx_memcmp(uscf->host.data, host->data, host->len) == 0)
|
|
|
589 {
|
|
|
590 goto found;
|
|
|
591 }
|
|
|
592 }
|
|
|
593
|
|
618
|
594 if (u->resolved->port == 0) {
|
|
|
595 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
|
|
|
596 "no port in upstream \"%V\"", host);
|
|
|
597 ngx_http_upstream_finalize_request(r, u,
|
|
|
598 NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
599 return;
|
|
|
600 }
|
|
|
601
|
|
348
|
602 temp.name = *host;
|
|
|
603
|
|
|
604 ctx = ngx_resolve_start(clcf->resolver, &temp);
|
|
|
605 if (ctx == NULL) {
|
|
530
|
606 ngx_http_upstream_finalize_request(r, u,
|
|
|
607 NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
348
|
608 return;
|
|
|
609 }
|
|
|
610
|
|
354
|
611 if (ctx == NGX_NO_RESOLVER) {
|
|
518
|
612 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
|
|
354
|
613 "no resolver defined to resolve %V", host);
|
|
|
614
|
|
530
|
615 ngx_http_upstream_finalize_request(r, u, NGX_HTTP_BAD_GATEWAY);
|
|
354
|
616 return;
|
|
|
617 }
|
|
|
618
|
|
348
|
619 ctx->name = *host;
|
|
|
620 ctx->type = NGX_RESOLVE_A;
|
|
|
621 ctx->handler = ngx_http_upstream_resolve_handler;
|
|
|
622 ctx->data = r;
|
|
|
623 ctx->timeout = clcf->resolver_timeout;
|
|
|
624
|
|
372
|
625 u->resolved->ctx = ctx;
|
|
|
626
|
|
348
|
627 if (ngx_resolve_name(ctx) != NGX_OK) {
|
|
372
|
628 u->resolved->ctx = NULL;
|
|
530
|
629 ngx_http_upstream_finalize_request(r, u,
|
|
|
630 NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
348
|
631 return;
|
|
|
632 }
|
|
|
633
|
|
|
634 return;
|
|
|
635 }
|
|
|
636
|
|
|
637 found:
|
|
|
638
|
|
|
639 if (uscf->peer.init(r, uscf) != NGX_OK) {
|
|
530
|
640 ngx_http_upstream_finalize_request(r, u,
|
|
|
641 NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
348
|
642 return;
|
|
|
643 }
|
|
|
644
|
|
28
|
645 ngx_http_upstream_connect(r, u);
|
|
|
646 }
|
|
|
647
|
|
|
648
|
|
464
|
649 #if (NGX_HTTP_CACHE)
|
|
|
650
|
|
|
651 static ngx_int_t
|
|
|
652 ngx_http_upstream_cache(ngx_http_request_t *r, ngx_http_upstream_t *u)
|
|
|
653 {
|
|
|
654 ngx_int_t rc;
|
|
|
655 ngx_http_cache_t *c;
|
|
|
656
|
|
518
|
657 c = r->cache;
|
|
|
658
|
|
464
|
659 if (c == NULL) {
|
|
518
|
660
|
|
|
661 if (!(r->method & u->conf->cache_methods)) {
|
|
|
662 return NGX_DECLINED;
|
|
|
663 }
|
|
|
664
|
|
|
665 if (r->method & NGX_HTTP_HEAD) {
|
|
|
666 u->method = ngx_http_core_get_method;
|
|
|
667 }
|
|
|
668
|
|
588
|
669 if (ngx_http_file_cache_new(r) != NGX_OK) {
|
|
518
|
670 return NGX_ERROR;
|
|
|
671 }
|
|
|
672
|
|
|
673 if (u->create_key(r) != NGX_OK) {
|
|
|
674 return NGX_ERROR;
|
|
|
675 }
|
|
|
676
|
|
|
677 /* TODO: add keys */
|
|
|
678
|
|
|
679 ngx_http_file_cache_create_key(r);
|
|
|
680
|
|
632
|
681 if (r->cache->header_start + 256 >= u->conf->buffer_size) {
|
|
630
|
682 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
|
|
632
|
683 "%V_buffer_size %uz is not enough for cache key, "
|
|
|
684 "it should increased at least to %uz",
|
|
|
685 &u->conf->module, u->conf->buffer_size,
|
|
|
686 ngx_align(r->cache->header_start + 256, 1024));
|
|
630
|
687
|
|
|
688 r->cache = NULL;
|
|
|
689 return NGX_DECLINED;
|
|
|
690 }
|
|
|
691
|
|
642
|
692 u->cacheable = 1;
|
|
|
693
|
|
626
|
694 switch (ngx_http_test_predicates(r, u->conf->cache_bypass)) {
|
|
|
695
|
|
|
696 case NGX_ERROR:
|
|
|
697 return NGX_ERROR;
|
|
|
698
|
|
|
699 case NGX_DECLINED:
|
|
|
700 u->cache_status = NGX_HTTP_CACHE_BYPASS;
|
|
|
701 return NGX_DECLINED;
|
|
|
702
|
|
|
703 default: /* NGX_OK */
|
|
|
704 break;
|
|
|
705 }
|
|
|
706
|
|
588
|
707 c = r->cache;
|
|
|
708
|
|
518
|
709 c->min_uses = u->conf->cache_min_uses;
|
|
|
710 c->body_start = u->conf->buffer_size;
|
|
|
711 c->file_cache = u->conf->cache->data;
|
|
|
712
|
|
656
|
713 c->lock = u->conf->cache_lock;
|
|
|
714 c->lock_timeout = u->conf->cache_lock_timeout;
|
|
|
715
|
|
518
|
716 u->cache_status = NGX_HTTP_CACHE_MISS;
|
|
464
|
717 }
|
|
|
718
|
|
|
719 rc = ngx_http_file_cache_open(r);
|
|
|
720
|
|
498
|
721 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
722 "http upstream cache: %i", rc);
|
|
|
723
|
|
502
|
724 switch (rc) {
|
|
|
725
|
|
|
726 case NGX_HTTP_CACHE_UPDATING:
|
|
|
727
|
|
498
|
728 if (u->conf->cache_use_stale & NGX_HTTP_UPSTREAM_FT_UPDATING) {
|
|
502
|
729 u->cache_status = rc;
|
|
498
|
730 rc = NGX_OK;
|
|
|
731
|
|
|
732 } else {
|
|
|
733 rc = NGX_HTTP_CACHE_STALE;
|
|
|
734 }
|
|
502
|
735
|
|
|
736 break;
|
|
|
737
|
|
|
738 case NGX_OK:
|
|
|
739 u->cache_status = NGX_HTTP_CACHE_HIT;
|
|
498
|
740 }
|
|
464
|
741
|
|
502
|
742 switch (rc) {
|
|
|
743
|
|
|
744 case NGX_OK:
|
|
464
|
745
|
|
|
746 rc = ngx_http_upstream_cache_send(r, u);
|
|
|
747
|
|
|
748 if (rc != NGX_HTTP_UPSTREAM_INVALID_HEADER) {
|
|
|
749 return rc;
|
|
|
750 }
|
|
|
751
|
|
502
|
752 break;
|
|
|
753
|
|
|
754 case NGX_HTTP_CACHE_STALE:
|
|
464
|
755
|
|
472
|
756 c->valid_sec = 0;
|
|
464
|
757 u->buffer.start = NULL;
|
|
502
|
758 u->cache_status = NGX_HTTP_CACHE_EXPIRED;
|
|
|
759
|
|
|
760 break;
|
|
|
761
|
|
|
762 case NGX_DECLINED:
|
|
464
|
763
|
|
|
764 if ((size_t) (u->buffer.end - u->buffer.start) < u->conf->buffer_size) {
|
|
|
765 u->buffer.start = NULL;
|
|
|
766
|
|
|
767 } else {
|
|
|
768 u->buffer.pos = u->buffer.start + c->header_start;
|
|
|
769 u->buffer.last = u->buffer.pos;
|
|
|
770 }
|
|
|
771
|
|
502
|
772 break;
|
|
|
773
|
|
518
|
774 case NGX_HTTP_CACHE_SCARCE:
|
|
464
|
775
|
|
|
776 u->cacheable = 0;
|
|
|
777
|
|
502
|
778 break;
|
|
|
779
|
|
518
|
780 case NGX_AGAIN:
|
|
|
781
|
|
|
782 return NGX_BUSY;
|
|
|
783
|
|
|
784 case NGX_ERROR:
|
|
|
785
|
|
|
786 return NGX_ERROR;
|
|
|
787
|
|
502
|
788 default:
|
|
464
|
789
|
|
|
790 /* cached NGX_HTTP_BAD_GATEWAY, NGX_HTTP_GATEWAY_TIME_OUT, etc. */
|
|
|
791
|
|
502
|
792 u->cache_status = NGX_HTTP_CACHE_HIT;
|
|
|
793
|
|
464
|
794 return rc;
|
|
|
795 }
|
|
|
796
|
|
|
797 r->cached = 0;
|
|
|
798
|
|
|
799 return NGX_DECLINED;
|
|
|
800 }
|
|
|
801
|
|
|
802
|
|
|
803 static ngx_int_t
|
|
|
804 ngx_http_upstream_cache_send(ngx_http_request_t *r, ngx_http_upstream_t *u)
|
|
|
805 {
|
|
|
806 ngx_int_t rc;
|
|
|
807 ngx_http_cache_t *c;
|
|
|
808
|
|
502
|
809 r->cached = 1;
|
|
464
|
810 c = r->cache;
|
|
|
811
|
|
554
|
812 if (c->header_start == c->body_start) {
|
|
|
813 r->http_version = NGX_HTTP_VERSION_9;
|
|
|
814 return ngx_http_cache_send(r);
|
|
|
815 }
|
|
|
816
|
|
464
|
817 /* TODO: cache stack */
|
|
|
818
|
|
|
819 u->buffer = *c->buf;
|
|
|
820 u->buffer.pos += c->header_start;
|
|
|
821
|
|
|
822 ngx_memzero(&u->headers_in, sizeof(ngx_http_upstream_headers_in_t));
|
|
640
|
823 u->headers_in.content_length_n = -1;
|
|
464
|
824
|
|
|
825 if (ngx_list_init(&u->headers_in.headers, r->pool, 8,
|
|
|
826 sizeof(ngx_table_elt_t))
|
|
|
827 != NGX_OK)
|
|
|
828 {
|
|
|
829 return NGX_ERROR;
|
|
|
830 }
|
|
|
831
|
|
|
832 rc = u->process_header(r);
|
|
|
833
|
|
|
834 if (rc == NGX_OK) {
|
|
|
835
|
|
|
836 if (ngx_http_upstream_process_headers(r, u) != NGX_OK) {
|
|
|
837 return NGX_DONE;
|
|
|
838 }
|
|
|
839
|
|
|
840 return ngx_http_cache_send(r);
|
|
|
841 }
|
|
|
842
|
|
|
843 if (rc == NGX_ERROR) {
|
|
|
844 return NGX_ERROR;
|
|
|
845 }
|
|
|
846
|
|
|
847 /* rc == NGX_HTTP_UPSTREAM_INVALID_HEADER */
|
|
|
848
|
|
|
849 /* TODO: delete file */
|
|
|
850
|
|
|
851 return rc;
|
|
|
852 }
|
|
|
853
|
|
|
854 #endif
|
|
|
855
|
|
|
856
|
|
36
|
857 static void
|
|
348
|
858 ngx_http_upstream_resolve_handler(ngx_resolver_ctx_t *ctx)
|
|
|
859 {
|
|
|
860 ngx_http_request_t *r;
|
|
530
|
861 ngx_http_upstream_t *u;
|
|
348
|
862 ngx_http_upstream_resolved_t *ur;
|
|
|
863
|
|
|
864 r = ctx->data;
|
|
|
865
|
|
530
|
866 u = r->upstream;
|
|
|
867 ur = u->resolved;
|
|
348
|
868
|
|
|
869 if (ctx->state) {
|
|
|
870 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
|
|
|
871 "%V could not be resolved (%i: %s)",
|
|
|
872 &ctx->name, ctx->state,
|
|
|
873 ngx_resolver_strerror(ctx->state));
|
|
|
874
|
|
530
|
875 ngx_http_upstream_finalize_request(r, u, NGX_HTTP_BAD_GATEWAY);
|
|
348
|
876 return;
|
|
|
877 }
|
|
|
878
|
|
|
879 ur->naddrs = ctx->naddrs;
|
|
|
880 ur->addrs = ctx->addrs;
|
|
|
881
|
|
|
882 #if (NGX_DEBUG)
|
|
|
883 {
|
|
|
884 in_addr_t addr;
|
|
|
885 ngx_uint_t i;
|
|
|
886
|
|
|
887 for (i = 0; i < ctx->naddrs; i++) {
|
|
|
888 addr = ntohl(ur->addrs[i]);
|
|
|
889
|
|
|
890 ngx_log_debug4(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
891 "name was resolved to %ud.%ud.%ud.%ud",
|
|
|
892 (addr >> 24) & 0xff, (addr >> 16) & 0xff,
|
|
|
893 (addr >> 8) & 0xff, addr & 0xff);
|
|
|
894 }
|
|
|
895 }
|
|
|
896 #endif
|
|
|
897
|
|
|
898 if (ngx_http_upstream_create_round_robin_peer(r, ur) != NGX_OK) {
|
|
530
|
899 ngx_http_upstream_finalize_request(r, u,
|
|
|
900 NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
348
|
901 return;
|
|
|
902 }
|
|
|
903
|
|
|
904 ngx_resolve_name_done(ctx);
|
|
530
|
905 ur->ctx = NULL;
|
|
|
906
|
|
|
907 ngx_http_upstream_connect(r, u);
|
|
348
|
908 }
|
|
|
909
|
|
|
910
|
|
|
911 static void
|
|
426
|
912 ngx_http_upstream_handler(ngx_event_t *ev)
|
|
|
913 {
|
|
|
914 ngx_connection_t *c;
|
|
|
915 ngx_http_request_t *r;
|
|
|
916 ngx_http_log_ctx_t *ctx;
|
|
|
917 ngx_http_upstream_t *u;
|
|
|
918
|
|
|
919 c = ev->data;
|
|
|
920 r = c->data;
|
|
|
921
|
|
|
922 u = r->upstream;
|
|
|
923 c = r->connection;
|
|
|
924
|
|
|
925 ctx = c->log->data;
|
|
|
926 ctx->current_request = r;
|
|
|
927
|
|
|
928 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
|
929 "http upstream request: \"%V?%V\"", &r->uri, &r->args);
|
|
|
930
|
|
|
931 if (ev->write) {
|
|
430
|
932 u->write_event_handler(r, u);
|
|
426
|
933
|
|
|
934 } else {
|
|
430
|
935 u->read_event_handler(r, u);
|
|
426
|
936 }
|
|
|
937
|
|
|
938 ngx_http_run_posted_requests(c);
|
|
|
939 }
|
|
|
940
|
|
|
941
|
|
|
942 static void
|
|
58
|
943 ngx_http_upstream_rd_check_broken_connection(ngx_http_request_t *r)
|
|
|
944 {
|
|
|
945 ngx_http_upstream_check_broken_connection(r, r->connection->read);
|
|
|
946 }
|
|
|
947
|
|
|
948
|
|
|
949 static void
|
|
|
950 ngx_http_upstream_wr_check_broken_connection(ngx_http_request_t *r)
|
|
|
951 {
|
|
|
952 ngx_http_upstream_check_broken_connection(r, r->connection->write);
|
|
|
953 }
|
|
|
954
|
|
|
955
|
|
|
956 static void
|
|
|
957 ngx_http_upstream_check_broken_connection(ngx_http_request_t *r,
|
|
|
958 ngx_event_t *ev)
|
|
28
|
959 {
|
|
|
960 int n;
|
|
|
961 char buf[1];
|
|
126
|
962 ngx_err_t err;
|
|
486
|
963 ngx_int_t event;
|
|
28
|
964 ngx_connection_t *c;
|
|
|
965 ngx_http_upstream_t *u;
|
|
|
966
|
|
76
|
967 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, ev->log, 0,
|
|
|
968 "http upstream check client, write event:%d, \"%V\"",
|
|
|
969 ev->write, &r->uri);
|
|
28
|
970
|
|
58
|
971 c = r->connection;
|
|
32
|
972 u = r->upstream;
|
|
|
973
|
|
132
|
974 if (c->error) {
|
|
486
|
975 if ((ngx_event_flags & NGX_USE_LEVEL_EVENT) && ev->active) {
|
|
|
976
|
|
|
977 event = ev->write ? NGX_WRITE_EVENT : NGX_READ_EVENT;
|
|
|
978
|
|
|
979 if (ngx_del_event(ev, event, 0) != NGX_OK) {
|
|
|
980 ngx_http_upstream_finalize_request(r, u,
|
|
|
981 NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
982 return;
|
|
|
983 }
|
|
|
984 }
|
|
|
985
|
|
482
|
986 if (!u->cacheable) {
|
|
|
987 ngx_http_upstream_finalize_request(r, u,
|
|
|
988 NGX_HTTP_CLIENT_CLOSED_REQUEST);
|
|
|
989 }
|
|
486
|
990
|
|
76
|
991 return;
|
|
|
992 }
|
|
|
993
|
|
28
|
994 #if (NGX_HAVE_KQUEUE)
|
|
|
995
|
|
|
996 if (ngx_event_flags & NGX_USE_KQUEUE_EVENT) {
|
|
|
997
|
|
|
998 if (!ev->pending_eof) {
|
|
|
999 return;
|
|
|
1000 }
|
|
|
1001
|
|
|
1002 ev->eof = 1;
|
|
132
|
1003 c->error = 1;
|
|
28
|
1004
|
|
|
1005 if (ev->kq_errno) {
|
|
|
1006 ev->error = 1;
|
|
|
1007 }
|
|
|
1008
|
|
482
|
1009 if (!u->cacheable && u->peer.connection) {
|
|
28
|
1010 ngx_log_error(NGX_LOG_INFO, ev->log, ev->kq_errno,
|
|
644
|
1011 "kevent() reported that client prematurely closed "
|
|
76
|
1012 "connection, so upstream connection is closed too");
|
|
28
|
1013 ngx_http_upstream_finalize_request(r, u,
|
|
|
1014 NGX_HTTP_CLIENT_CLOSED_REQUEST);
|
|
|
1015 return;
|
|
|
1016 }
|
|
|
1017
|
|
|
1018 ngx_log_error(NGX_LOG_INFO, ev->log, ev->kq_errno,
|
|
644
|
1019 "kevent() reported that client prematurely closed "
|
|
|
1020 "connection");
|
|
28
|
1021
|
|
|
1022 if (u->peer.connection == NULL) {
|
|
|
1023 ngx_http_upstream_finalize_request(r, u,
|
|
|
1024 NGX_HTTP_CLIENT_CLOSED_REQUEST);
|
|
|
1025 }
|
|
|
1026
|
|
|
1027 return;
|
|
|
1028 }
|
|
|
1029
|
|
|
1030 #endif
|
|
|
1031
|
|
|
1032 n = recv(c->fd, buf, 1, MSG_PEEK);
|
|
|
1033
|
|
|
1034 err = ngx_socket_errno;
|
|
|
1035
|
|
286
|
1036 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, ev->log, err,
|
|
|
1037 "http upstream recv(): %d", n);
|
|
|
1038
|
|
28
|
1039 if (ev->write && (n >= 0 || err == NGX_EAGAIN)) {
|
|
|
1040 return;
|
|
|
1041 }
|
|
|
1042
|
|
|
1043 if ((ngx_event_flags & NGX_USE_LEVEL_EVENT) && ev->active) {
|
|
486
|
1044
|
|
|
1045 event = ev->write ? NGX_WRITE_EVENT : NGX_READ_EVENT;
|
|
|
1046
|
|
|
1047 if (ngx_del_event(ev, event, 0) != NGX_OK) {
|
|
28
|
1048 ngx_http_upstream_finalize_request(r, u,
|
|
|
1049 NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
1050 return;
|
|
|
1051 }
|
|
|
1052 }
|
|
|
1053
|
|
|
1054 if (n > 0) {
|
|
|
1055 return;
|
|
|
1056 }
|
|
|
1057
|
|
|
1058 if (n == -1) {
|
|
|
1059 if (err == NGX_EAGAIN) {
|
|
|
1060 return;
|
|
|
1061 }
|
|
|
1062
|
|
|
1063 ev->error = 1;
|
|
|
1064
|
|
32
|
1065 } else { /* n == 0 */
|
|
28
|
1066 err = 0;
|
|
|
1067 }
|
|
|
1068
|
|
78
|
1069 ev->eof = 1;
|
|
132
|
1070 c->error = 1;
|
|
78
|
1071
|
|
482
|
1072 if (!u->cacheable && u->peer.connection) {
|
|
28
|
1073 ngx_log_error(NGX_LOG_INFO, ev->log, err,
|
|
644
|
1074 "client prematurely closed connection, "
|
|
28
|
1075 "so upstream connection is closed too");
|
|
|
1076 ngx_http_upstream_finalize_request(r, u,
|
|
|
1077 NGX_HTTP_CLIENT_CLOSED_REQUEST);
|
|
|
1078 return;
|
|
|
1079 }
|
|
|
1080
|
|
|
1081 ngx_log_error(NGX_LOG_INFO, ev->log, err,
|
|
644
|
1082 "client prematurely closed connection");
|
|
28
|
1083
|
|
|
1084 if (u->peer.connection == NULL) {
|
|
|
1085 ngx_http_upstream_finalize_request(r, u,
|
|
|
1086 NGX_HTTP_CLIENT_CLOSED_REQUEST);
|
|
|
1087 }
|
|
|
1088 }
|
|
|
1089
|
|
|
1090
|
|
36
|
1091 static void
|
|
|
1092 ngx_http_upstream_connect(ngx_http_request_t *r, ngx_http_upstream_t *u)
|
|
28
|
1093 {
|
|
140
|
1094 ngx_int_t rc;
|
|
214
|
1095 ngx_time_t *tp;
|
|
140
|
1096 ngx_connection_t *c;
|
|
28
|
1097
|
|
32
|
1098 r->connection->log->action = "connecting to upstream";
|
|
28
|
1099
|
|
|
1100 r->connection->single_connection = 0;
|
|
|
1101
|
|
262
|
1102 if (u->state && u->state->response_sec) {
|
|
214
|
1103 tp = ngx_timeofday();
|
|
262
|
1104 u->state->response_sec = tp->sec - u->state->response_sec;
|
|
|
1105 u->state->response_msec = tp->msec - u->state->response_msec;
|
|
214
|
1106 }
|
|
|
1107
|
|
296
|
1108 u->state = ngx_array_push(r->upstream_states);
|
|
214
|
1109 if (u->state == NULL) {
|
|
|
1110 ngx_http_upstream_finalize_request(r, u,
|
|
|
1111 NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
1112 return;
|
|
|
1113 }
|
|
|
1114
|
|
|
1115 ngx_memzero(u->state, sizeof(ngx_http_upstream_state_t));
|
|
|
1116
|
|
|
1117 tp = ngx_timeofday();
|
|
262
|
1118 u->state->response_sec = tp->sec;
|
|
|
1119 u->state->response_msec = tp->msec;
|
|
214
|
1120
|
|
28
|
1121 rc = ngx_event_connect_peer(&u->peer);
|
|
|
1122
|
|
|
1123 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1124 "http upstream connect: %i", rc);
|
|
|
1125
|
|
|
1126 if (rc == NGX_ERROR) {
|
|
|
1127 ngx_http_upstream_finalize_request(r, u,
|
|
|
1128 NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
1129 return;
|
|
|
1130 }
|
|
|
1131
|
|
356
|
1132 u->state->peer = u->peer.name;
|
|
|
1133
|
|
92
|
1134 if (rc == NGX_BUSY) {
|
|
|
1135 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, "no live upstreams");
|
|
326
|
1136 ngx_http_upstream_next(r, u, NGX_HTTP_UPSTREAM_FT_NOLIVE);
|
|
|
1137 return;
|
|
92
|
1138 }
|
|
|
1139
|
|
326
|
1140 if (rc == NGX_DECLINED) {
|
|
28
|
1141 ngx_http_upstream_next(r, u, NGX_HTTP_UPSTREAM_FT_ERROR);
|
|
|
1142 return;
|
|
|
1143 }
|
|
|
1144
|
|
126
|
1145 /* rc == NGX_OK || rc == NGX_AGAIN */
|
|
|
1146
|
|
28
|
1147 c = u->peer.connection;
|
|
|
1148
|
|
|
1149 c->data = r;
|
|
140
|
1150
|
|
426
|
1151 c->write->handler = ngx_http_upstream_handler;
|
|
|
1152 c->read->handler = ngx_http_upstream_handler;
|
|
|
1153
|
|
|
1154 u->write_event_handler = ngx_http_upstream_send_request_handler;
|
|
|
1155 u->read_event_handler = ngx_http_upstream_process_header;
|
|
28
|
1156
|
|
326
|
1157 c->sendfile &= r->connection->sendfile;
|
|
372
|
1158 u->output.sendfile = c->sendfile;
|
|
28
|
1159
|
|
640
|
1160 if (c->pool == NULL) {
|
|
|
1161
|
|
|
1162 /* we need separate pool here to be able to cache SSL connections */
|
|
|
1163
|
|
|
1164 c->pool = ngx_create_pool(128, r->connection->log);
|
|
|
1165 if (c->pool == NULL) {
|
|
|
1166 ngx_http_upstream_finalize_request(r, u,
|
|
|
1167 NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
1168 return;
|
|
|
1169 }
|
|
|
1170 }
|
|
|
1171
|
|
492
|
1172 c->log = r->connection->log;
|
|
640
|
1173 c->pool->log = c->log;
|
|
492
|
1174 c->read->log = c->log;
|
|
|
1175 c->write->log = c->log;
|
|
28
|
1176
|
|
|
1177 /* init or reinit the ngx_output_chain() and ngx_chain_writer() contexts */
|
|
|
1178
|
|
|
1179 u->writer.out = NULL;
|
|
|
1180 u->writer.last = &u->writer.out;
|
|
|
1181 u->writer.connection = c;
|
|
|
1182 u->writer.limit = 0;
|
|
|
1183
|
|
|
1184 if (u->request_sent) {
|
|
58
|
1185 if (ngx_http_upstream_reinit(r, u) != NGX_OK) {
|
|
|
1186 ngx_http_upstream_finalize_request(r, u,
|
|
|
1187 NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
1188 return;
|
|
|
1189 }
|
|
28
|
1190 }
|
|
|
1191
|
|
276
|
1192 if (r->request_body
|
|
|
1193 && r->request_body->buf
|
|
|
1194 && r->request_body->temp_file
|
|
|
1195 && r == r->main)
|
|
|
1196 {
|
|
122
|
1197 /*
|
|
|
1198 * the r->request_body->buf can be reused for one request only,
|
|
670
|
1199 * the subrequests should allocate their own temporary bufs
|
|
122
|
1200 */
|
|
|
1201
|
|
|
1202 u->output.free = ngx_alloc_chain_link(r->pool);
|
|
|
1203 if (u->output.free == NULL) {
|
|
|
1204 ngx_http_upstream_finalize_request(r, u,
|
|
|
1205 NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
1206 return;
|
|
28
|
1207 }
|
|
122
|
1208
|
|
|
1209 u->output.free->buf = r->request_body->buf;
|
|
|
1210 u->output.free->next = NULL;
|
|
|
1211 u->output.allocated = 1;
|
|
|
1212
|
|
|
1213 r->request_body->buf->pos = r->request_body->buf->start;
|
|
|
1214 r->request_body->buf->last = r->request_body->buf->start;
|
|
|
1215 r->request_body->buf->tag = u->output.tag;
|
|
28
|
1216 }
|
|
|
1217
|
|
|
1218 u->request_sent = 0;
|
|
|
1219
|
|
|
1220 if (rc == NGX_AGAIN) {
|
|
|
1221 ngx_add_timer(c->write, u->conf->connect_timeout);
|
|
|
1222 return;
|
|
|
1223 }
|
|
|
1224
|
|
126
|
1225 #if (NGX_HTTP_SSL)
|
|
|
1226
|
|
348
|
1227 if (u->ssl && c->ssl == NULL) {
|
|
140
|
1228 ngx_http_upstream_ssl_init_connection(r, u, c);
|
|
126
|
1229 return;
|
|
|
1230 }
|
|
|
1231
|
|
|
1232 #endif
|
|
|
1233
|
|
28
|
1234 ngx_http_upstream_send_request(r, u);
|
|
|
1235 }
|
|
|
1236
|
|
|
1237
|
|
126
|
1238 #if (NGX_HTTP_SSL)
|
|
|
1239
|
|
|
1240 static void
|
|
140
|
1241 ngx_http_upstream_ssl_init_connection(ngx_http_request_t *r,
|
|
|
1242 ngx_http_upstream_t *u, ngx_connection_t *c)
|
|
|
1243 {
|
|
260
|
1244 ngx_int_t rc;
|
|
140
|
1245
|
|
|
1246 if (ngx_ssl_create_connection(u->conf->ssl, c,
|
|
|
1247 NGX_SSL_BUFFER|NGX_SSL_CLIENT)
|
|
454
|
1248 != NGX_OK)
|
|
140
|
1249 {
|
|
|
1250 ngx_http_upstream_finalize_request(r, u,
|
|
|
1251 NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
1252 return;
|
|
|
1253 }
|
|
|
1254
|
|
|
1255 c->sendfile = 0;
|
|
168
|
1256 u->output.sendfile = 0;
|
|
140
|
1257
|
|
398
|
1258 if (u->conf->ssl_session_reuse) {
|
|
|
1259 if (u->peer.set_session(&u->peer, u->peer.data) != NGX_OK) {
|
|
|
1260 ngx_http_upstream_finalize_request(r, u,
|
|
|
1261 NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
1262 return;
|
|
|
1263 }
|
|
140
|
1264 }
|
|
|
1265
|
|
190
|
1266 r->connection->log->action = "SSL handshaking to upstream";
|
|
|
1267
|
|
140
|
1268 rc = ngx_ssl_handshake(c);
|
|
|
1269
|
|
|
1270 if (rc == NGX_AGAIN) {
|
|
|
1271 c->ssl->handler = ngx_http_upstream_ssl_handshake;
|
|
|
1272 return;
|
|
|
1273 }
|
|
|
1274
|
|
|
1275 ngx_http_upstream_ssl_handshake(c);
|
|
|
1276 }
|
|
|
1277
|
|
|
1278
|
|
|
1279 static void
|
|
126
|
1280 ngx_http_upstream_ssl_handshake(ngx_connection_t *c)
|
|
|
1281 {
|
|
|
1282 ngx_http_request_t *r;
|
|
|
1283 ngx_http_upstream_t *u;
|
|
|
1284
|
|
|
1285 r = c->data;
|
|
|
1286 u = r->upstream;
|
|
|
1287
|
|
|
1288 if (c->ssl->handshaked) {
|
|
|
1289
|
|
398
|
1290 if (u->conf->ssl_session_reuse) {
|
|
|
1291 u->peer.save_session(&u->peer, u->peer.data);
|
|
|
1292 }
|
|
260
|
1293
|
|
426
|
1294 c->write->handler = ngx_http_upstream_handler;
|
|
|
1295 c->read->handler = ngx_http_upstream_handler;
|
|
126
|
1296
|
|
|
1297 ngx_http_upstream_send_request(r, u);
|
|
|
1298
|
|
|
1299 return;
|
|
|
1300 }
|
|
|
1301
|
|
|
1302 ngx_http_upstream_next(r, u, NGX_HTTP_UPSTREAM_FT_ERROR);
|
|
|
1303
|
|
|
1304 }
|
|
|
1305
|
|
|
1306 #endif
|
|
|
1307
|
|
|
1308
|
|
58
|
1309 static ngx_int_t
|
|
36
|
1310 ngx_http_upstream_reinit(ngx_http_request_t *r, ngx_http_upstream_t *u)
|
|
28
|
1311 {
|
|
|
1312 ngx_chain_t *cl;
|
|
|
1313
|
|
58
|
1314 if (u->reinit_request(r) != NGX_OK) {
|
|
|
1315 return NGX_ERROR;
|
|
|
1316 }
|
|
|
1317
|
|
640
|
1318 u->keepalive = 0;
|
|
|
1319
|
|
356
|
1320 ngx_memzero(&u->headers_in, sizeof(ngx_http_upstream_headers_in_t));
|
|
640
|
1321 u->headers_in.content_length_n = -1;
|
|
356
|
1322
|
|
|
1323 if (ngx_list_init(&u->headers_in.headers, r->pool, 8,
|
|
140
|
1324 sizeof(ngx_table_elt_t))
|
|
|
1325 != NGX_OK)
|
|
58
|
1326 {
|
|
|
1327 return NGX_ERROR;
|
|
28
|
1328 }
|
|
|
1329
|
|
|
1330 /* reinit the request chain */
|
|
126
|
1331
|
|
58
|
1332 for (cl = u->request_bufs; cl; cl = cl->next) {
|
|
28
|
1333 cl->buf->pos = cl->buf->start;
|
|
|
1334 cl->buf->file_pos = 0;
|
|
|
1335 }
|
|
|
1336
|
|
58
|
1337 /* reinit the subrequest's ngx_output_chain() context */
|
|
|
1338
|
|
122
|
1339 if (r->request_body && r->request_body->temp_file
|
|
146
|
1340 && r != r->main && u->output.buf)
|
|
122
|
1341 {
|
|
|
1342 u->output.free = ngx_alloc_chain_link(r->pool);
|
|
|
1343 if (u->output.free == NULL) {
|
|
|
1344 return NGX_ERROR;
|
|
58
|
1345 }
|
|
122
|
1346
|
|
|
1347 u->output.free->buf = u->output.buf;
|
|
|
1348 u->output.free->next = NULL;
|
|
|
1349
|
|
|
1350 u->output.buf->pos = u->output.buf->start;
|
|
|
1351 u->output.buf->last = u->output.buf->start;
|
|
58
|
1352 }
|
|
28
|
1353
|
|
|
1354 u->output.buf = NULL;
|
|
|
1355 u->output.in = NULL;
|
|
|
1356 u->output.busy = NULL;
|
|
126
|
1357
|
|
130
|
1358 /* reinit u->buffer */
|
|
126
|
1359
|
|
464
|
1360 u->buffer.pos = u->buffer.start;
|
|
|
1361
|
|
|
1362 #if (NGX_HTTP_CACHE)
|
|
|
1363
|
|
|
1364 if (r->cache) {
|
|
|
1365 u->buffer.pos += r->cache->header_start;
|
|
28
|
1366 }
|
|
58
|
1367
|
|
28
|
1368 #endif
|
|
|
1369
|
|
464
|
1370 u->buffer.last = u->buffer.pos;
|
|
|
1371
|
|
58
|
1372 return NGX_OK;
|
|
28
|
1373 }
|
|
|
1374
|
|
|
1375
|
|
36
|
1376 static void
|
|
|
1377 ngx_http_upstream_send_request(ngx_http_request_t *r, ngx_http_upstream_t *u)
|
|
28
|
1378 {
|
|
294
|
1379 ngx_int_t rc;
|
|
32
|
1380 ngx_connection_t *c;
|
|
126
|
1381
|
|
28
|
1382 c = u->peer.connection;
|
|
|
1383
|
|
|
1384 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
|
1385 "http upstream send request");
|
|
|
1386
|
|
294
|
1387 if (!u->request_sent && ngx_http_upstream_test_connect(c) != NGX_OK) {
|
|
296
|
1388 ngx_http_upstream_next(r, u, NGX_HTTP_UPSTREAM_FT_ERROR);
|
|
294
|
1389 return;
|
|
28
|
1390 }
|
|
|
1391
|
|
32
|
1392 c->log->action = "sending request to upstream";
|
|
28
|
1393
|
|
58
|
1394 rc = ngx_output_chain(&u->output, u->request_sent ? NULL : u->request_bufs);
|
|
28
|
1395
|
|
|
1396 u->request_sent = 1;
|
|
|
1397
|
|
|
1398 if (rc == NGX_ERROR) {
|
|
|
1399 ngx_http_upstream_next(r, u, NGX_HTTP_UPSTREAM_FT_ERROR);
|
|
|
1400 return;
|
|
|
1401 }
|
|
|
1402
|
|
|
1403 if (c->write->timer_set) {
|
|
|
1404 ngx_del_timer(c->write);
|
|
|
1405 }
|
|
|
1406
|
|
|
1407 if (rc == NGX_AGAIN) {
|
|
|
1408 ngx_add_timer(c->write, u->conf->send_timeout);
|
|
|
1409
|
|
430
|
1410 if (ngx_handle_write_event(c->write, u->conf->send_lowat) != NGX_OK) {
|
|
28
|
1411 ngx_http_upstream_finalize_request(r, u,
|
|
|
1412 NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
1413 return;
|
|
|
1414 }
|
|
|
1415
|
|
|
1416 return;
|
|
|
1417 }
|
|
|
1418
|
|
|
1419 /* rc == NGX_OK */
|
|
|
1420
|
|
|
1421 if (c->tcp_nopush == NGX_TCP_NOPUSH_SET) {
|
|
|
1422 if (ngx_tcp_push(c->fd) == NGX_ERROR) {
|
|
|
1423 ngx_log_error(NGX_LOG_CRIT, c->log, ngx_socket_errno,
|
|
|
1424 ngx_tcp_push_n " failed");
|
|
|
1425 ngx_http_upstream_finalize_request(r, u,
|
|
|
1426 NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
126
|
1427 return;
|
|
28
|
1428 }
|
|
|
1429
|
|
|
1430 c->tcp_nopush = NGX_TCP_NOPUSH_UNSET;
|
|
|
1431 }
|
|
126
|
1432
|
|
28
|
1433 ngx_add_timer(c->read, u->conf->read_timeout);
|
|
|
1434
|
|
|
1435 #if 1
|
|
|
1436 if (c->read->ready) {
|
|
126
|
1437
|
|
28
|
1438 /* post aio operation */
|
|
|
1439
|
|
|
1440 /*
|
|
|
1441 * TODO comment
|
|
|
1442 * although we can post aio operation just in the end
|
|
|
1443 * of ngx_http_upstream_connect() CHECK IT !!!
|
|
|
1444 * it's better to do here because we postpone header buffer allocation
|
|
|
1445 */
|
|
|
1446
|
|
430
|
1447 ngx_http_upstream_process_header(r, u);
|
|
28
|
1448 return;
|
|
|
1449 }
|
|
|
1450 #endif
|
|
|
1451
|
|
426
|
1452 u->write_event_handler = ngx_http_upstream_dummy_handler;
|
|
28
|
1453
|
|
430
|
1454 if (ngx_handle_write_event(c->write, 0) != NGX_OK) {
|
|
28
|
1455 ngx_http_upstream_finalize_request(r, u,
|
|
|
1456 NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
1457 return;
|
|
|
1458 }
|
|
|
1459 }
|
|
|
1460
|
|
|
1461
|
|
36
|
1462 static void
|
|
430
|
1463 ngx_http_upstream_send_request_handler(ngx_http_request_t *r,
|
|
|
1464 ngx_http_upstream_t *u)
|
|
28
|
1465 {
|
|
430
|
1466 ngx_connection_t *c;
|
|
|
1467
|
|
|
1468 c = u->peer.connection;
|
|
|
1469
|
|
|
1470 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
28
|
1471 "http upstream send request handler");
|
|
|
1472
|
|
430
|
1473 if (c->write->timedout) {
|
|
28
|
1474 ngx_http_upstream_next(r, u, NGX_HTTP_UPSTREAM_FT_TIMEOUT);
|
|
|
1475 return;
|
|
|
1476 }
|
|
|
1477
|
|
140
|
1478 #if (NGX_HTTP_SSL)
|
|
|
1479
|
|
348
|
1480 if (u->ssl && c->ssl == NULL) {
|
|
140
|
1481 ngx_http_upstream_ssl_init_connection(r, u, c);
|
|
|
1482 return;
|
|
|
1483 }
|
|
|
1484
|
|
|
1485 #endif
|
|
|
1486
|
|
200
|
1487 if (u->header_sent) {
|
|
426
|
1488 u->write_event_handler = ngx_http_upstream_dummy_handler;
|
|
200
|
1489
|
|
430
|
1490 (void) ngx_handle_write_event(c->write, 0);
|
|
200
|
1491
|
|
|
1492 return;
|
|
|
1493 }
|
|
|
1494
|
|
28
|
1495 ngx_http_upstream_send_request(r, u);
|
|
|
1496 }
|
|
|
1497
|
|
|
1498
|
|
36
|
1499 static void
|
|
430
|
1500 ngx_http_upstream_process_header(ngx_http_request_t *r, ngx_http_upstream_t *u)
|
|
28
|
1501 {
|
|
464
|
1502 ssize_t n;
|
|
|
1503 ngx_int_t rc;
|
|
|
1504 ngx_connection_t *c;
|
|
28
|
1505
|
|
430
|
1506 c = u->peer.connection;
|
|
|
1507
|
|
|
1508 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
32
|
1509 "http upstream process header");
|
|
28
|
1510
|
|
32
|
1511 c->log->action = "reading response header from upstream";
|
|
28
|
1512
|
|
430
|
1513 if (c->read->timedout) {
|
|
28
|
1514 ngx_http_upstream_next(r, u, NGX_HTTP_UPSTREAM_FT_TIMEOUT);
|
|
|
1515 return;
|
|
|
1516 }
|
|
126
|
1517
|
|
294
|
1518 if (!u->request_sent && ngx_http_upstream_test_connect(c) != NGX_OK) {
|
|
296
|
1519 ngx_http_upstream_next(r, u, NGX_HTTP_UPSTREAM_FT_ERROR);
|
|
294
|
1520 return;
|
|
|
1521 }
|
|
|
1522
|
|
130
|
1523 if (u->buffer.start == NULL) {
|
|
|
1524 u->buffer.start = ngx_palloc(r->pool, u->conf->buffer_size);
|
|
|
1525 if (u->buffer.start == NULL) {
|
|
28
|
1526 ngx_http_upstream_finalize_request(r, u,
|
|
|
1527 NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
1528 return;
|
|
|
1529 }
|
|
|
1530
|
|
130
|
1531 u->buffer.pos = u->buffer.start;
|
|
|
1532 u->buffer.last = u->buffer.start;
|
|
|
1533 u->buffer.end = u->buffer.start + u->conf->buffer_size;
|
|
|
1534 u->buffer.temporary = 1;
|
|
|
1535
|
|
|
1536 u->buffer.tag = u->output.tag;
|
|
28
|
1537
|
|
356
|
1538 if (ngx_list_init(&u->headers_in.headers, r->pool, 8,
|
|
130
|
1539 sizeof(ngx_table_elt_t))
|
|
|
1540 != NGX_OK)
|
|
58
|
1541 {
|
|
|
1542 ngx_http_upstream_finalize_request(r, u,
|
|
|
1543 NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
1544 return;
|
|
|
1545 }
|
|
|
1546
|
|
464
|
1547 #if (NGX_HTTP_CACHE)
|
|
|
1548
|
|
|
1549 if (r->cache) {
|
|
|
1550 u->buffer.pos += r->cache->header_start;
|
|
130
|
1551 u->buffer.last = u->buffer.pos;
|
|
28
|
1552 }
|
|
|
1553 #endif
|
|
|
1554 }
|
|
|
1555
|
|
424
|
1556 for ( ;; ) {
|
|
|
1557
|
|
|
1558 n = c->recv(c, u->buffer.last, u->buffer.end - u->buffer.last);
|
|
|
1559
|
|
|
1560 if (n == NGX_AGAIN) {
|
|
28
|
1561 #if 0
|
|
424
|
1562 ngx_add_timer(rev, u->read_timeout);
|
|
28
|
1563 #endif
|
|
|
1564
|
|
430
|
1565 if (ngx_handle_read_event(c->read, 0) != NGX_OK) {
|
|
424
|
1566 ngx_http_upstream_finalize_request(r, u,
|
|
28
|
1567 NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
424
|
1568 return;
|
|
|
1569 }
|
|
|
1570
|
|
|
1571 return;
|
|
|
1572 }
|
|
|
1573
|
|
|
1574 if (n == 0) {
|
|
430
|
1575 ngx_log_error(NGX_LOG_ERR, c->log, 0,
|
|
424
|
1576 "upstream prematurely closed connection");
|
|
|
1577 }
|
|
|
1578
|
|
|
1579 if (n == NGX_ERROR || n == 0) {
|
|
|
1580 ngx_http_upstream_next(r, u, NGX_HTTP_UPSTREAM_FT_ERROR);
|
|
28
|
1581 return;
|
|
|
1582 }
|
|
|
1583
|
|
424
|
1584 u->buffer.last += n;
|
|
28
|
1585
|
|
|
1586 #if 0
|
|
424
|
1587 u->valid_header_in = 0;
|
|
|
1588
|
|
|
1589 u->peer.cached = 0;
|
|
28
|
1590 #endif
|
|
|
1591
|
|
424
|
1592 rc = u->process_header(r);
|
|
|
1593
|
|
|
1594 if (rc == NGX_AGAIN) {
|
|
|
1595
|
|
662
|
1596 if (u->buffer.last == u->buffer.end) {
|
|
430
|
1597 ngx_log_error(NGX_LOG_ERR, c->log, 0,
|
|
424
|
1598 "upstream sent too big header");
|
|
|
1599
|
|
|
1600 ngx_http_upstream_next(r, u,
|
|
|
1601 NGX_HTTP_UPSTREAM_FT_INVALID_HEADER);
|
|
|
1602 return;
|
|
|
1603 }
|
|
|
1604
|
|
|
1605 continue;
|
|
28
|
1606 }
|
|
|
1607
|
|
424
|
1608 break;
|
|
28
|
1609 }
|
|
|
1610
|
|
|
1611 if (rc == NGX_HTTP_UPSTREAM_INVALID_HEADER) {
|
|
|
1612 ngx_http_upstream_next(r, u, NGX_HTTP_UPSTREAM_FT_INVALID_HEADER);
|
|
|
1613 return;
|
|
|
1614 }
|
|
|
1615
|
|
356
|
1616 if (rc == NGX_ERROR) {
|
|
28
|
1617 ngx_http_upstream_finalize_request(r, u,
|
|
|
1618 NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
1619 return;
|
|
|
1620 }
|
|
|
1621
|
|
|
1622 /* rc == NGX_OK */
|
|
|
1623
|
|
558
|
1624 if (u->headers_in.status_n > NGX_HTTP_SPECIAL_RESPONSE) {
|
|
412
|
1625
|
|
|
1626 if (r->subrequest_in_memory) {
|
|
|
1627 u->buffer.last = u->buffer.pos;
|
|
58
|
1628 }
|
|
|
1629
|
|
412
|
1630 if (ngx_http_upstream_test_next(r, u) == NGX_OK) {
|
|
146
|
1631 return;
|
|
|
1632 }
|
|
|
1633
|
|
412
|
1634 if (ngx_http_upstream_intercept_errors(r, u) == NGX_OK) {
|
|
146
|
1635 return;
|
|
|
1636 }
|
|
58
|
1637 }
|
|
|
1638
|
|
464
|
1639 if (ngx_http_upstream_process_headers(r, u) != NGX_OK) {
|
|
64
|
1640 return;
|
|
|
1641 }
|
|
|
1642
|
|
248
|
1643 if (!r->subrequest_in_memory) {
|
|
|
1644 ngx_http_upstream_send_response(r, u);
|
|
|
1645 return;
|
|
|
1646 }
|
|
|
1647
|
|
|
1648 /* subrequest content in memory */
|
|
|
1649
|
|
|
1650 if (u->input_filter == NULL) {
|
|
|
1651 u->input_filter_init = ngx_http_upstream_non_buffered_filter_init;
|
|
|
1652 u->input_filter = ngx_http_upstream_non_buffered_filter;
|
|
|
1653 u->input_filter_ctx = r;
|
|
|
1654 }
|
|
|
1655
|
|
|
1656 if (u->input_filter_init(u->input_filter_ctx) == NGX_ERROR) {
|
|
|
1657 ngx_http_upstream_finalize_request(r, u,
|
|
|
1658 NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
1659 return;
|
|
|
1660 }
|
|
|
1661
|
|
420
|
1662 n = u->buffer.last - u->buffer.pos;
|
|
|
1663
|
|
|
1664 if (n) {
|
|
|
1665 u->buffer.last -= n;
|
|
|
1666
|
|
430
|
1667 u->state->response_length += n;
|
|
|
1668
|
|
420
|
1669 if (u->input_filter(u->input_filter_ctx, n) == NGX_ERROR) {
|
|
248
|
1670 ngx_http_upstream_finalize_request(r, u, NGX_ERROR);
|
|
|
1671 return;
|
|
|
1672 }
|
|
|
1673
|
|
420
|
1674 if (u->length == 0) {
|
|
|
1675 ngx_http_upstream_finalize_request(r, u, 0);
|
|
|
1676 return;
|
|
|
1677 }
|
|
248
|
1678 }
|
|
|
1679
|
|
426
|
1680 u->read_event_handler = ngx_http_upstream_process_body_in_memory;
|
|
248
|
1681
|
|
430
|
1682 ngx_http_upstream_process_body_in_memory(r, u);
|
|
248
|
1683 }
|
|
|
1684
|
|
|
1685
|
|
294
|
1686 static ngx_int_t
|
|
412
|
1687 ngx_http_upstream_test_next(ngx_http_request_t *r, ngx_http_upstream_t *u)
|
|
|
1688 {
|
|
|
1689 ngx_uint_t status;
|
|
|
1690 ngx_http_upstream_next_t *un;
|
|
|
1691
|
|
|
1692 status = u->headers_in.status_n;
|
|
|
1693
|
|
|
1694 for (un = ngx_http_upstream_next_errors; un->status; un++) {
|
|
|
1695
|
|
|
1696 if (status != un->status) {
|
|
|
1697 continue;
|
|
|
1698 }
|
|
|
1699
|
|
|
1700 if (u->peer.tries > 1 && (u->conf->next_upstream & un->mask)) {
|
|
|
1701 ngx_http_upstream_next(r, u, un->mask);
|
|
|
1702 return NGX_OK;
|
|
|
1703 }
|
|
|
1704
|
|
|
1705 #if (NGX_HTTP_CACHE)
|
|
|
1706
|
|
502
|
1707 if (u->cache_status == NGX_HTTP_CACHE_EXPIRED
|
|
|
1708 && (u->conf->cache_use_stale & un->mask))
|
|
|
1709 {
|
|
488
|
1710 ngx_int_t rc;
|
|
486
|
1711
|
|
|
1712 rc = u->reinit_request(r);
|
|
|
1713
|
|
|
1714 if (rc == NGX_OK) {
|
|
502
|
1715 u->cache_status = NGX_HTTP_CACHE_STALE;
|
|
486
|
1716 rc = ngx_http_upstream_cache_send(r, u);
|
|
|
1717 }
|
|
|
1718
|
|
|
1719 ngx_http_upstream_finalize_request(r, u, rc);
|
|
412
|
1720 return NGX_OK;
|
|
|
1721 }
|
|
|
1722
|
|
|
1723 #endif
|
|
|
1724 }
|
|
|
1725
|
|
|
1726 return NGX_DECLINED;
|
|
|
1727 }
|
|
|
1728
|
|
|
1729
|
|
|
1730 static ngx_int_t
|
|
|
1731 ngx_http_upstream_intercept_errors(ngx_http_request_t *r,
|
|
|
1732 ngx_http_upstream_t *u)
|
|
|
1733 {
|
|
|
1734 ngx_int_t status;
|
|
|
1735 ngx_uint_t i;
|
|
|
1736 ngx_table_elt_t *h;
|
|
|
1737 ngx_http_err_page_t *err_page;
|
|
|
1738 ngx_http_core_loc_conf_t *clcf;
|
|
|
1739
|
|
438
|
1740 status = u->headers_in.status_n;
|
|
|
1741
|
|
|
1742 if (status == NGX_HTTP_NOT_FOUND && u->conf->intercept_404) {
|
|
|
1743 ngx_http_upstream_finalize_request(r, u, NGX_HTTP_NOT_FOUND);
|
|
|
1744 return NGX_OK;
|
|
|
1745 }
|
|
|
1746
|
|
412
|
1747 if (!u->conf->intercept_errors) {
|
|
|
1748 return NGX_DECLINED;
|
|
|
1749 }
|
|
|
1750
|
|
|
1751 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
1752
|
|
|
1753 if (clcf->error_pages == NULL) {
|
|
|
1754 return NGX_DECLINED;
|
|
|
1755 }
|
|
|
1756
|
|
|
1757 err_page = clcf->error_pages->elts;
|
|
|
1758 for (i = 0; i < clcf->error_pages->nelts; i++) {
|
|
|
1759
|
|
|
1760 if (err_page[i].status == status) {
|
|
|
1761
|
|
502
|
1762 if (status == NGX_HTTP_UNAUTHORIZED
|
|
|
1763 && u->headers_in.www_authenticate)
|
|
|
1764 {
|
|
412
|
1765 h = ngx_list_push(&r->headers_out.headers);
|
|
|
1766
|
|
|
1767 if (h == NULL) {
|
|
|
1768 ngx_http_upstream_finalize_request(r, u,
|
|
|
1769 NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
1770 return NGX_OK;
|
|
|
1771 }
|
|
|
1772
|
|
|
1773 *h = *u->headers_in.www_authenticate;
|
|
|
1774
|
|
|
1775 r->headers_out.www_authenticate = h;
|
|
|
1776 }
|
|
|
1777
|
|
590
|
1778 #if (NGX_HTTP_CACHE)
|
|
|
1779
|
|
|
1780 if (r->cache) {
|
|
|
1781 time_t valid;
|
|
|
1782
|
|
|
1783 valid = ngx_http_file_cache_valid(u->conf->cache_valid, status);
|
|
|
1784
|
|
|
1785 if (valid) {
|
|
|
1786 r->cache->valid_sec = ngx_time() + valid;
|
|
|
1787 r->cache->error = status;
|
|
|
1788 }
|
|
|
1789
|
|
|
1790 ngx_http_file_cache_free(r->cache, u->pipe->temp_file);
|
|
|
1791 }
|
|
|
1792 #endif
|
|
412
|
1793 ngx_http_upstream_finalize_request(r, u, status);
|
|
|
1794
|
|
|
1795 return NGX_OK;
|
|
|
1796 }
|
|
|
1797 }
|
|
|
1798
|
|
|
1799 return NGX_DECLINED;
|
|
|
1800 }
|
|
|
1801
|
|
|
1802
|
|
|
1803 static ngx_int_t
|
|
294
|
1804 ngx_http_upstream_test_connect(ngx_connection_t *c)
|
|
|
1805 {
|
|
|
1806 int err;
|
|
|
1807 socklen_t len;
|
|
|
1808
|
|
|
1809 #if (NGX_HAVE_KQUEUE)
|
|
|
1810
|
|
|
1811 if (ngx_event_flags & NGX_USE_KQUEUE_EVENT) {
|
|
296
|
1812 if (c->write->pending_eof) {
|
|
336
|
1813 c->log->action = "connecting to upstream";
|
|
296
|
1814 (void) ngx_connection_error(c, c->write->kq_errno,
|
|
|
1815 "kevent() reported that connect() failed");
|
|
|
1816 return NGX_ERROR;
|
|
|
1817 }
|
|
294
|
1818
|
|
|
1819 } else
|
|
|
1820 #endif
|
|
|
1821 {
|
|
296
|
1822 err = 0;
|
|
|
1823 len = sizeof(int);
|
|
|
1824
|
|
|
1825 /*
|
|
|
1826 * BSDs and Linux return 0 and set a pending error in err
|
|
|
1827 * Solaris returns -1 and sets errno
|
|
|
1828 */
|
|
|
1829
|
|
|
1830 if (getsockopt(c->fd, SOL_SOCKET, SO_ERROR, (void *) &err, &len)
|
|
|
1831 == -1)
|
|
|
1832 {
|
|
|
1833 err = ngx_errno;
|
|
|
1834 }
|
|
|
1835
|
|
|
1836 if (err) {
|
|
336
|
1837 c->log->action = "connecting to upstream";
|
|
296
|
1838 (void) ngx_connection_error(c, err, "connect() failed");
|
|
|
1839 return NGX_ERROR;
|
|
|
1840 }
|
|
294
|
1841 }
|
|
|
1842
|
|
|
1843 return NGX_OK;
|
|
|
1844 }
|
|
|
1845
|
|
|
1846
|
|
464
|
1847 static ngx_int_t
|
|
|
1848 ngx_http_upstream_process_headers(ngx_http_request_t *r, ngx_http_upstream_t *u)
|
|
|
1849 {
|
|
|
1850 ngx_str_t *uri, args;
|
|
|
1851 ngx_uint_t i, flags;
|
|
|
1852 ngx_list_part_t *part;
|
|
|
1853 ngx_table_elt_t *h;
|
|
|
1854 ngx_http_upstream_header_t *hh;
|
|
|
1855 ngx_http_upstream_main_conf_t *umcf;
|
|
|
1856
|
|
|
1857 umcf = ngx_http_get_module_main_conf(r, ngx_http_upstream_module);
|
|
|
1858
|
|
484
|
1859 if (u->headers_in.x_accel_redirect
|
|
|
1860 && !(u->conf->ignore_headers & NGX_HTTP_UPSTREAM_IGN_XA_REDIRECT))
|
|
|
1861 {
|
|
464
|
1862 ngx_http_upstream_finalize_request(r, u, NGX_DECLINED);
|
|
|
1863
|
|
|
1864 part = &u->headers_in.headers.part;
|
|
|
1865 h = part->elts;
|
|
|
1866
|
|
|
1867 for (i = 0; /* void */; i++) {
|
|
|
1868
|
|
|
1869 if (i >= part->nelts) {
|
|
|
1870 if (part->next == NULL) {
|
|
|
1871 break;
|
|
|
1872 }
|
|
|
1873
|
|
|
1874 part = part->next;
|
|
|
1875 h = part->elts;
|
|
|
1876 i = 0;
|
|
|
1877 }
|
|
|
1878
|
|
|
1879 hh = ngx_hash_find(&umcf->headers_in_hash, h[i].hash,
|
|
|
1880 h[i].lowcase_key, h[i].key.len);
|
|
|
1881
|
|
|
1882 if (hh && hh->redirect) {
|
|
|
1883 if (hh->copy_handler(r, &h[i], hh->conf) != NGX_OK) {
|
|
|
1884 ngx_http_finalize_request(r,
|
|
|
1885 NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
1886 return NGX_DONE;
|
|
|
1887 }
|
|
|
1888 }
|
|
|
1889 }
|
|
|
1890
|
|
|
1891 uri = &u->headers_in.x_accel_redirect->value;
|
|
570
|
1892 ngx_str_null(&args);
|
|
530
|
1893 flags = NGX_HTTP_LOG_UNSAFE;
|
|
464
|
1894
|
|
|
1895 if (ngx_http_parse_unsafe_uri(r, uri, &args, &flags) != NGX_OK) {
|
|
|
1896 ngx_http_finalize_request(r, NGX_HTTP_NOT_FOUND);
|
|
|
1897 return NGX_DONE;
|
|
|
1898 }
|
|
|
1899
|
|
|
1900 if (r->method != NGX_HTTP_HEAD) {
|
|
|
1901 r->method = NGX_HTTP_GET;
|
|
|
1902 }
|
|
|
1903
|
|
|
1904 ngx_http_internal_redirect(r, uri, &args);
|
|
526
|
1905 ngx_http_finalize_request(r, NGX_DONE);
|
|
464
|
1906 return NGX_DONE;
|
|
|
1907 }
|
|
|
1908
|
|
|
1909 part = &u->headers_in.headers.part;
|
|
|
1910 h = part->elts;
|
|
|
1911
|
|
|
1912 for (i = 0; /* void */; i++) {
|
|
|
1913
|
|
|
1914 if (i >= part->nelts) {
|
|
|
1915 if (part->next == NULL) {
|
|
|
1916 break;
|
|
|
1917 }
|
|
|
1918
|
|
|
1919 part = part->next;
|
|
|
1920 h = part->elts;
|
|
|
1921 i = 0;
|
|
|
1922 }
|
|
|
1923
|
|
|
1924 if (ngx_hash_find(&u->conf->hide_headers_hash, h[i].hash,
|
|
|
1925 h[i].lowcase_key, h[i].key.len))
|
|
|
1926 {
|
|
|
1927 continue;
|
|
|
1928 }
|
|
|
1929
|
|
|
1930 hh = ngx_hash_find(&umcf->headers_in_hash, h[i].hash,
|
|
|
1931 h[i].lowcase_key, h[i].key.len);
|
|
|
1932
|
|
|
1933 if (hh) {
|
|
|
1934 if (hh->copy_handler(r, &h[i], hh->conf) != NGX_OK) {
|
|
|
1935 ngx_http_upstream_finalize_request(r, u,
|
|
|
1936 NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
1937 return NGX_DONE;
|
|
|
1938 }
|
|
|
1939
|
|
|
1940 continue;
|
|
|
1941 }
|
|
|
1942
|
|
|
1943 if (ngx_http_upstream_copy_header_line(r, &h[i], 0) != NGX_OK) {
|
|
|
1944 ngx_http_upstream_finalize_request(r, u,
|
|
|
1945 NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
1946 return NGX_DONE;
|
|
|
1947 }
|
|
|
1948 }
|
|
|
1949
|
|
|
1950 if (r->headers_out.server && r->headers_out.server->value.data == NULL) {
|
|
|
1951 r->headers_out.server->hash = 0;
|
|
|
1952 }
|
|
|
1953
|
|
|
1954 if (r->headers_out.date && r->headers_out.date->value.data == NULL) {
|
|
|
1955 r->headers_out.date->hash = 0;
|
|
|
1956 }
|
|
|
1957
|
|
|
1958 r->headers_out.status = u->headers_in.status_n;
|
|
|
1959 r->headers_out.status_line = u->headers_in.status_line;
|
|
|
1960
|
|
640
|
1961 r->headers_out.content_length_n = u->headers_in.content_length_n;
|
|
|
1962
|
|
|
1963 u->length = u->headers_in.content_length_n;
|
|
464
|
1964
|
|
|
1965 return NGX_OK;
|
|
|
1966 }
|
|
|
1967
|
|
|
1968
|
|
248
|
1969 static void
|
|
430
|
1970 ngx_http_upstream_process_body_in_memory(ngx_http_request_t *r,
|
|
|
1971 ngx_http_upstream_t *u)
|
|
248
|
1972 {
|
|
430
|
1973 size_t size;
|
|
|
1974 ssize_t n;
|
|
|
1975 ngx_buf_t *b;
|
|
|
1976 ngx_event_t *rev;
|
|
|
1977 ngx_connection_t *c;
|
|
|
1978
|
|
|
1979 c = u->peer.connection;
|
|
|
1980 rev = c->read;
|
|
248
|
1981
|
|
|
1982 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
|
1983 "http upstream process body on memory");
|
|
|
1984
|
|
|
1985 if (rev->timedout) {
|
|
|
1986 ngx_connection_error(c, NGX_ETIMEDOUT, "upstream timed out");
|
|
|
1987 ngx_http_upstream_finalize_request(r, u, NGX_ETIMEDOUT);
|
|
|
1988 return;
|
|
|
1989 }
|
|
|
1990
|
|
|
1991 b = &u->buffer;
|
|
|
1992
|
|
|
1993 for ( ;; ) {
|
|
|
1994
|
|
|
1995 size = b->end - b->last;
|
|
|
1996
|
|
|
1997 if (size == 0) {
|
|
|
1998 ngx_log_error(NGX_LOG_ALERT, c->log, 0,
|
|
590
|
1999 "upstream buffer is too small to read response");
|
|
248
|
2000 ngx_http_upstream_finalize_request(r, u, NGX_ERROR);
|
|
|
2001 return;
|
|
|
2002 }
|
|
|
2003
|
|
|
2004 n = c->recv(c, b->last, size);
|
|
|
2005
|
|
|
2006 if (n == NGX_AGAIN) {
|
|
|
2007 break;
|
|
|
2008 }
|
|
|
2009
|
|
|
2010 if (n == 0 || n == NGX_ERROR) {
|
|
|
2011 ngx_http_upstream_finalize_request(r, u, n);
|
|
|
2012 return;
|
|
|
2013 }
|
|
|
2014
|
|
430
|
2015 u->state->response_length += n;
|
|
|
2016
|
|
248
|
2017 if (u->input_filter(u->input_filter_ctx, n) == NGX_ERROR) {
|
|
|
2018 ngx_http_upstream_finalize_request(r, u, NGX_ERROR);
|
|
|
2019 return;
|
|
|
2020 }
|
|
|
2021
|
|
|
2022 if (!rev->ready) {
|
|
|
2023 break;
|
|
|
2024 }
|
|
|
2025 }
|
|
|
2026
|
|
640
|
2027 if (u->length == 0) {
|
|
|
2028 ngx_http_upstream_finalize_request(r, u, 0);
|
|
|
2029 return;
|
|
|
2030 }
|
|
|
2031
|
|
430
|
2032 if (ngx_handle_read_event(rev, 0) != NGX_OK) {
|
|
248
|
2033 ngx_http_upstream_finalize_request(r, u, NGX_ERROR);
|
|
|
2034 return;
|
|
|
2035 }
|
|
|
2036
|
|
|
2037 if (rev->active) {
|
|
|
2038 ngx_add_timer(rev, u->conf->read_timeout);
|
|
|
2039
|
|
|
2040 } else if (rev->timer_set) {
|
|
|
2041 ngx_del_timer(rev);
|
|
|
2042 }
|
|
230
|
2043 }
|
|
|
2044
|
|
|
2045
|
|
|
2046 static void
|
|
|
2047 ngx_http_upstream_send_response(ngx_http_request_t *r, ngx_http_upstream_t *u)
|
|
|
2048 {
|
|
|
2049 int tcp_nodelay;
|
|
430
|
2050 ssize_t n;
|
|
230
|
2051 ngx_int_t rc;
|
|
|
2052 ngx_event_pipe_t *p;
|
|
|
2053 ngx_connection_t *c;
|
|
|
2054 ngx_http_core_loc_conf_t *clcf;
|
|
|
2055
|
|
58
|
2056 rc = ngx_http_send_header(r);
|
|
28
|
2057
|
|
480
|
2058 if (rc == NGX_ERROR || rc > NGX_OK || r->post_action) {
|
|
34
|
2059 ngx_http_upstream_finalize_request(r, u, rc);
|
|
28
|
2060 return;
|
|
|
2061 }
|
|
|
2062
|
|
480
|
2063 c = r->connection;
|
|
|
2064
|
|
|
2065 if (r->header_only) {
|
|
|
2066
|
|
|
2067 if (u->cacheable || u->store) {
|
|
|
2068
|
|
|
2069 if (ngx_shutdown_socket(c->fd, NGX_WRITE_SHUTDOWN) == -1) {
|
|
|
2070 ngx_connection_error(c, ngx_socket_errno,
|
|
|
2071 ngx_shutdown_socket_n " failed");
|
|
|
2072 }
|
|
|
2073
|
|
|
2074 r->read_event_handler = ngx_http_request_empty_handler;
|
|
|
2075 r->write_event_handler = ngx_http_request_empty_handler;
|
|
|
2076 c->error = 1;
|
|
|
2077
|
|
|
2078 } else {
|
|
|
2079 ngx_http_upstream_finalize_request(r, u, rc);
|
|
|
2080 return;
|
|
|
2081 }
|
|
|
2082 }
|
|
|
2083
|
|
28
|
2084 u->header_sent = 1;
|
|
|
2085
|
|
122
|
2086 if (r->request_body && r->request_body->temp_file) {
|
|
464
|
2087 ngx_pool_run_cleanup_file(r->pool, r->request_body->temp_file->file.fd);
|
|
|
2088 r->request_body->temp_file->file.fd = NGX_INVALID_FILE;
|
|
112
|
2089 }
|
|
|
2090
|
|
130
|
2091 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
2092
|
|
198
|
2093 if (!u->buffering) {
|
|
130
|
2094
|
|
|
2095 if (u->input_filter == NULL) {
|
|
|
2096 u->input_filter_init = ngx_http_upstream_non_buffered_filter_init;
|
|
|
2097 u->input_filter = ngx_http_upstream_non_buffered_filter;
|
|
|
2098 u->input_filter_ctx = r;
|
|
|
2099 }
|
|
|
2100
|
|
428
|
2101 u->read_event_handler = ngx_http_upstream_process_non_buffered_upstream;
|
|
130
|
2102 r->write_event_handler =
|
|
|
2103 ngx_http_upstream_process_non_buffered_downstream;
|
|
|
2104
|
|
|
2105 r->limit_rate = 0;
|
|
|
2106
|
|
|
2107 if (u->input_filter_init(u->input_filter_ctx) == NGX_ERROR) {
|
|
|
2108 ngx_http_upstream_finalize_request(r, u, 0);
|
|
|
2109 return;
|
|
|
2110 }
|
|
|
2111
|
|
132
|
2112 if (clcf->tcp_nodelay && c->tcp_nodelay == NGX_TCP_NODELAY_UNSET) {
|
|
|
2113 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "tcp_nodelay");
|
|
|
2114
|
|
|
2115 tcp_nodelay = 1;
|
|
|
2116
|
|
|
2117 if (setsockopt(c->fd, IPPROTO_TCP, TCP_NODELAY,
|
|
|
2118 (const void *) &tcp_nodelay, sizeof(int)) == -1)
|
|
|
2119 {
|
|
|
2120 ngx_connection_error(c, ngx_socket_errno,
|
|
|
2121 "setsockopt(TCP_NODELAY) failed");
|
|
|
2122 ngx_http_upstream_finalize_request(r, u, 0);
|
|
|
2123 return;
|
|
|
2124 }
|
|
|
2125
|
|
|
2126 c->tcp_nodelay = NGX_TCP_NODELAY_SET;
|
|
|
2127 }
|
|
|
2128
|
|
430
|
2129 n = u->buffer.last - u->buffer.pos;
|
|
|
2130
|
|
|
2131 if (n) {
|
|
130
|
2132 u->buffer.last = u->buffer.pos;
|
|
|
2133
|
|
430
|
2134 u->state->response_length += n;
|
|
|
2135
|
|
|
2136 if (u->input_filter(u->input_filter_ctx, n) == NGX_ERROR) {
|
|
130
|
2137 ngx_http_upstream_finalize_request(r, u, 0);
|
|
|
2138 return;
|
|
|
2139 }
|
|
|
2140
|
|
428
|
2141 ngx_http_upstream_process_non_buffered_downstream(r);
|
|
130
|
2142
|
|
|
2143 } else {
|
|
|
2144 u->buffer.pos = u->buffer.start;
|
|
|
2145 u->buffer.last = u->buffer.start;
|
|
|
2146
|
|
|
2147 if (ngx_http_send_special(r, NGX_HTTP_FLUSH) == NGX_ERROR) {
|
|
|
2148 ngx_http_upstream_finalize_request(r, u, 0);
|
|
|
2149 return;
|
|
|
2150 }
|
|
336
|
2151
|
|
640
|
2152 if (u->peer.connection->read->ready || u->length == 0) {
|
|
430
|
2153 ngx_http_upstream_process_non_buffered_upstream(r, u);
|
|
336
|
2154 }
|
|
130
|
2155 }
|
|
|
2156
|
|
|
2157 return;
|
|
|
2158 }
|
|
|
2159
|
|
28
|
2160 /* TODO: preallocate event_pipe bufs, look "Content-Length" */
|
|
|
2161
|
|
464
|
2162 #if (NGX_HTTP_CACHE)
|
|
|
2163
|
|
|
2164 if (r->cache && r->cache->file.fd != NGX_INVALID_FILE) {
|
|
|
2165 ngx_pool_run_cleanup_file(r->pool, r->cache->file.fd);
|
|
|
2166 r->cache->file.fd = NGX_INVALID_FILE;
|
|
28
|
2167 }
|
|
|
2168
|
|
588
|
2169 switch (ngx_http_test_predicates(r, u->conf->no_cache)) {
|
|
|
2170
|
|
|
2171 case NGX_ERROR:
|
|
|
2172 ngx_http_upstream_finalize_request(r, u, 0);
|
|
|
2173 return;
|
|
|
2174
|
|
|
2175 case NGX_DECLINED:
|
|
|
2176 u->cacheable = 0;
|
|
|
2177 break;
|
|
|
2178
|
|
|
2179 default: /* NGX_OK */
|
|
|
2180
|
|
|
2181 if (u->cache_status == NGX_HTTP_CACHE_BYPASS) {
|
|
|
2182
|
|
|
2183 r->cache->min_uses = u->conf->cache_min_uses;
|
|
|
2184 r->cache->body_start = u->conf->buffer_size;
|
|
|
2185 r->cache->file_cache = u->conf->cache->data;
|
|
|
2186
|
|
|
2187 if (ngx_http_file_cache_create(r) != NGX_OK) {
|
|
|
2188 ngx_http_upstream_finalize_request(r, u, 0);
|
|
|
2189 return;
|
|
|
2190 }
|
|
|
2191 }
|
|
|
2192
|
|
|
2193 break;
|
|
|
2194 }
|
|
|
2195
|
|
340
|
2196 if (u->cacheable) {
|
|
464
|
2197 time_t now, valid;
|
|
|
2198
|
|
472
|
2199 now = ngx_time();
|
|
|
2200
|
|
|
2201 valid = r->cache->valid_sec;
|
|
|
2202
|
|
|
2203 if (valid == 0) {
|
|
|
2204 valid = ngx_http_file_cache_valid(u->conf->cache_valid,
|
|
|
2205 u->headers_in.status_n);
|
|
|
2206 if (valid) {
|
|
|
2207 r->cache->valid_sec = now + valid;
|
|
|
2208 }
|
|
|
2209 }
|
|
|
2210
|
|
464
|
2211 if (valid) {
|
|
|
2212 r->cache->last_modified = r->headers_out.last_modified_time;
|
|
|
2213 r->cache->date = now;
|
|
|
2214 r->cache->body_start = (u_short) (u->buffer.pos - u->buffer.start);
|
|
|
2215
|
|
|
2216 ngx_http_file_cache_set_header(r, u->buffer.start);
|
|
|
2217
|
|
|
2218 } else {
|
|
|
2219 u->cacheable = 0;
|
|
480
|
2220 r->headers_out.last_modified_time = -1;
|
|
464
|
2221 }
|
|
28
|
2222 }
|
|
|
2223
|
|
478
|
2224 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
|
2225 "http cacheable: %d", u->cacheable);
|
|
|
2226
|
|
524
|
2227 if (u->cacheable == 0 && r->cache) {
|
|
590
|
2228 ngx_http_file_cache_free(r->cache, u->pipe->temp_file);
|
|
524
|
2229 }
|
|
|
2230
|
|
28
|
2231 #endif
|
|
|
2232
|
|
130
|
2233 p = u->pipe;
|
|
28
|
2234
|
|
|
2235 p->output_filter = (ngx_event_pipe_output_filter_pt) ngx_http_output_filter;
|
|
|
2236 p->output_ctx = r;
|
|
|
2237 p->tag = u->output.tag;
|
|
126
|
2238 p->bufs = u->conf->bufs;
|
|
28
|
2239 p->busy_size = u->conf->busy_buffers_size;
|
|
|
2240 p->upstream = u->peer.connection;
|
|
132
|
2241 p->downstream = c;
|
|
28
|
2242 p->pool = r->pool;
|
|
132
|
2243 p->log = c->log;
|
|
126
|
2244
|
|
340
|
2245 p->cacheable = u->cacheable || u->store;
|
|
28
|
2246
|
|
50
|
2247 p->temp_file = ngx_pcalloc(r->pool, sizeof(ngx_temp_file_t));
|
|
|
2248 if (p->temp_file == NULL) {
|
|
28
|
2249 ngx_http_upstream_finalize_request(r, u, 0);
|
|
|
2250 return;
|
|
|
2251 }
|
|
|
2252
|
|
|
2253 p->temp_file->file.fd = NGX_INVALID_FILE;
|
|
132
|
2254 p->temp_file->file.log = c->log;
|
|
28
|
2255 p->temp_file->path = u->conf->temp_path;
|
|
|
2256 p->temp_file->pool = r->pool;
|
|
126
|
2257
|
|
464
|
2258 if (p->cacheable) {
|
|
28
|
2259 p->temp_file->persistent = 1;
|
|
318
|
2260
|
|
28
|
2261 } else {
|
|
216
|
2262 p->temp_file->log_level = NGX_LOG_WARN;
|
|
28
|
2263 p->temp_file->warn = "an upstream response is buffered "
|
|
|
2264 "to a temporary file";
|
|
|
2265 }
|
|
|
2266
|
|
|
2267 p->max_temp_file_size = u->conf->max_temp_file_size;
|
|
|
2268 p->temp_file_write_size = u->conf->temp_file_write_size;
|
|
|
2269
|
|
50
|
2270 p->preread_bufs = ngx_alloc_chain_link(r->pool);
|
|
|
2271 if (p->preread_bufs == NULL) {
|
|
28
|
2272 ngx_http_upstream_finalize_request(r, u, 0);
|
|
|
2273 return;
|
|
|
2274 }
|
|
318
|
2275
|
|
130
|
2276 p->preread_bufs->buf = &u->buffer;
|
|
28
|
2277 p->preread_bufs->next = NULL;
|
|
130
|
2278 u->buffer.recycled = 1;
|
|
|
2279
|
|
|
2280 p->preread_size = u->buffer.last - u->buffer.pos;
|
|
28
|
2281
|
|
340
|
2282 if (u->cacheable) {
|
|
318
|
2283
|
|
28
|
2284 p->buf_to_file = ngx_calloc_buf(r->pool);
|
|
|
2285 if (p->buf_to_file == NULL) {
|
|
|
2286 ngx_http_upstream_finalize_request(r, u, 0);
|
|
|
2287 return;
|
|
|
2288 }
|
|
318
|
2289
|
|
130
|
2290 p->buf_to_file->pos = u->buffer.start;
|
|
|
2291 p->buf_to_file->last = u->buffer.pos;
|
|
28
|
2292 p->buf_to_file->temporary = 1;
|
|
|
2293 }
|
|
|
2294
|
|
|
2295 if (ngx_event_flags & NGX_USE_AIO_EVENT) {
|
|
664
|
2296 /* the posted aio operation may corrupt a shadow buffer */
|
|
28
|
2297 p->single_buf = 1;
|
|
|
2298 }
|
|
|
2299
|
|
|
2300 /* TODO: p->free_bufs = 0 if use ngx_create_chain_of_bufs() */
|
|
|
2301 p->free_bufs = 1;
|
|
|
2302
|
|
|
2303 /*
|
|
130
|
2304 * event_pipe would do u->buffer.last += p->preread_size
|
|
28
|
2305 * as though these bytes were read
|
|
|
2306 */
|
|
130
|
2307 u->buffer.last = u->buffer.pos;
|
|
28
|
2308
|
|
|
2309 if (u->conf->cyclic_temp_file) {
|
|
|
2310
|
|
|
2311 /*
|
|
|
2312 * we need to disable the use of sendfile() if we use cyclic temp file
|
|
|
2313 * because the writing a new data may interfere with sendfile()
|
|
|
2314 * that uses the same kernel file pages (at least on FreeBSD)
|
|
|
2315 */
|
|
|
2316
|
|
|
2317 p->cyclic_temp_file = 1;
|
|
132
|
2318 c->sendfile = 0;
|
|
28
|
2319
|
|
|
2320 } else {
|
|
|
2321 p->cyclic_temp_file = 0;
|
|
|
2322 }
|
|
|
2323
|
|
|
2324 p->read_timeout = u->conf->read_timeout;
|
|
|
2325 p->send_timeout = clcf->send_timeout;
|
|
|
2326 p->send_lowat = clcf->send_lowat;
|
|
|
2327
|
|
640
|
2328 p->length = -1;
|
|
|
2329
|
|
|
2330 if (u->input_filter_init
|
|
|
2331 && u->input_filter_init(p->input_ctx) != NGX_OK)
|
|
|
2332 {
|
|
|
2333 ngx_http_upstream_finalize_request(r, u, 0);
|
|
|
2334 return;
|
|
|
2335 }
|
|
|
2336
|
|
428
|
2337 u->read_event_handler = ngx_http_upstream_process_upstream;
|
|
58
|
2338 r->write_event_handler = ngx_http_upstream_process_downstream;
|
|
28
|
2339
|
|
430
|
2340 ngx_http_upstream_process_upstream(r, u);
|
|
28
|
2341 }
|
|
|
2342
|
|
|
2343
|
|
36
|
2344 static void
|
|
130
|
2345 ngx_http_upstream_process_non_buffered_downstream(ngx_http_request_t *r)
|
|
|
2346 {
|
|
428
|
2347 ngx_event_t *wev;
|
|
|
2348 ngx_connection_t *c;
|
|
|
2349 ngx_http_upstream_t *u;
|
|
|
2350
|
|
|
2351 c = r->connection;
|
|
|
2352 u = r->upstream;
|
|
|
2353 wev = c->write;
|
|
|
2354
|
|
|
2355 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
|
2356 "http upstream process non buffered downstream");
|
|
|
2357
|
|
|
2358 c->log->action = "sending to client";
|
|
|
2359
|
|
|
2360 if (wev->timedout) {
|
|
|
2361 c->timedout = 1;
|
|
|
2362 ngx_connection_error(c, NGX_ETIMEDOUT, "client timed out");
|
|
632
|
2363 ngx_http_upstream_finalize_request(r, u, NGX_HTTP_REQUEST_TIME_OUT);
|
|
428
|
2364 return;
|
|
|
2365 }
|
|
|
2366
|
|
|
2367 ngx_http_upstream_process_non_buffered_request(r, 1);
|
|
130
|
2368 }
|
|
|
2369
|
|
|
2370
|
|
|
2371 static void
|
|
430
|
2372 ngx_http_upstream_process_non_buffered_upstream(ngx_http_request_t *r,
|
|
|
2373 ngx_http_upstream_t *u)
|
|
428
|
2374 {
|
|
430
|
2375 ngx_connection_t *c;
|
|
|
2376
|
|
|
2377 c = u->peer.connection;
|
|
428
|
2378
|
|
|
2379 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
|
2380 "http upstream process non buffered upstream");
|
|
|
2381
|
|
|
2382 c->log->action = "reading upstream";
|
|
|
2383
|
|
430
|
2384 if (c->read->timedout) {
|
|
428
|
2385 ngx_connection_error(c, NGX_ETIMEDOUT, "upstream timed out");
|
|
|
2386 ngx_http_upstream_finalize_request(r, u, 0);
|
|
|
2387 return;
|
|
|
2388 }
|
|
|
2389
|
|
|
2390 ngx_http_upstream_process_non_buffered_request(r, 0);
|
|
|
2391 }
|
|
|
2392
|
|
|
2393
|
|
|
2394 static void
|
|
|
2395 ngx_http_upstream_process_non_buffered_request(ngx_http_request_t *r,
|
|
|
2396 ngx_uint_t do_write)
|
|
130
|
2397 {
|
|
|
2398 size_t size;
|
|
|
2399 ssize_t n;
|
|
|
2400 ngx_buf_t *b;
|
|
132
|
2401 ngx_int_t rc;
|
|
428
|
2402 ngx_connection_t *downstream, *upstream;
|
|
130
|
2403 ngx_http_upstream_t *u;
|
|
|
2404 ngx_http_core_loc_conf_t *clcf;
|
|
|
2405
|
|
244
|
2406 u = r->upstream;
|
|
260
|
2407 downstream = r->connection;
|
|
|
2408 upstream = u->peer.connection;
|
|
130
|
2409
|
|
|
2410 b = &u->buffer;
|
|
|
2411
|
|
428
|
2412 do_write = do_write || u->length == 0;
|
|
130
|
2413
|
|
|
2414 for ( ;; ) {
|
|
|
2415
|
|
|
2416 if (do_write) {
|
|
|
2417
|
|
|
2418 if (u->out_bufs || u->busy_bufs) {
|
|
132
|
2419 rc = ngx_http_output_filter(r, u->out_bufs);
|
|
|
2420
|
|
|
2421 if (rc == NGX_ERROR) {
|
|
130
|
2422 ngx_http_upstream_finalize_request(r, u, 0);
|
|
|
2423 return;
|
|
|
2424 }
|
|
|
2425
|
|
640
|
2426 ngx_chain_update_chains(r->pool, &u->free_bufs, &u->busy_bufs,
|
|
130
|
2427 &u->out_bufs, u->output.tag);
|
|
|
2428 }
|
|
|
2429
|
|
|
2430 if (u->busy_bufs == NULL) {
|
|
|
2431
|
|
|
2432 if (u->length == 0
|
|
260
|
2433 || upstream->read->eof
|
|
|
2434 || upstream->read->error)
|
|
130
|
2435 {
|
|
|
2436 ngx_http_upstream_finalize_request(r, u, 0);
|
|
|
2437 return;
|
|
|
2438 }
|
|
|
2439
|
|
|
2440 b->pos = b->start;
|
|
|
2441 b->last = b->start;
|
|
|
2442 }
|
|
|
2443 }
|
|
|
2444
|
|
|
2445 size = b->end - b->last;
|
|
|
2446
|
|
260
|
2447 if (size && upstream->read->ready) {
|
|
|
2448
|
|
|
2449 n = upstream->recv(upstream, b->last, size);
|
|
130
|
2450
|
|
|
2451 if (n == NGX_AGAIN) {
|
|
|
2452 break;
|
|
|
2453 }
|
|
|
2454
|
|
|
2455 if (n > 0) {
|
|
430
|
2456 u->state->response_length += n;
|
|
|
2457
|
|
130
|
2458 if (u->input_filter(u->input_filter_ctx, n) == NGX_ERROR) {
|
|
|
2459 ngx_http_upstream_finalize_request(r, u, 0);
|
|
|
2460 return;
|
|
|
2461 }
|
|
|
2462 }
|
|
|
2463
|
|
|
2464 do_write = 1;
|
|
|
2465
|
|
|
2466 continue;
|
|
|
2467 }
|
|
|
2468
|
|
|
2469 break;
|
|
|
2470 }
|
|
|
2471
|
|
428
|
2472 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
2473
|
|
260
|
2474 if (downstream->data == r) {
|
|
|
2475 if (ngx_handle_write_event(downstream->write, clcf->send_lowat)
|
|
426
|
2476 != NGX_OK)
|
|
132
|
2477 {
|
|
|
2478 ngx_http_upstream_finalize_request(r, u, 0);
|
|
|
2479 return;
|
|
|
2480 }
|
|
130
|
2481 }
|
|
|
2482
|
|
276
|
2483 if (downstream->write->active && !downstream->write->ready) {
|
|
260
|
2484 ngx_add_timer(downstream->write, clcf->send_timeout);
|
|
|
2485
|
|
|
2486 } else if (downstream->write->timer_set) {
|
|
|
2487 ngx_del_timer(downstream->write);
|
|
130
|
2488 }
|
|
|
2489
|
|
426
|
2490 if (ngx_handle_read_event(upstream->read, 0) != NGX_OK) {
|
|
130
|
2491 ngx_http_upstream_finalize_request(r, u, 0);
|
|
|
2492 return;
|
|
|
2493 }
|
|
|
2494
|
|
276
|
2495 if (upstream->read->active && !upstream->read->ready) {
|
|
260
|
2496 ngx_add_timer(upstream->read, u->conf->read_timeout);
|
|
|
2497
|
|
|
2498 } else if (upstream->read->timer_set) {
|
|
|
2499 ngx_del_timer(upstream->read);
|
|
130
|
2500 }
|
|
|
2501 }
|
|
|
2502
|
|
|
2503
|
|
|
2504 static ngx_int_t
|
|
|
2505 ngx_http_upstream_non_buffered_filter_init(void *data)
|
|
|
2506 {
|
|
|
2507 return NGX_OK;
|
|
|
2508 }
|
|
|
2509
|
|
|
2510
|
|
|
2511 static ngx_int_t
|
|
|
2512 ngx_http_upstream_non_buffered_filter(void *data, ssize_t bytes)
|
|
|
2513 {
|
|
|
2514 ngx_http_request_t *r = data;
|
|
|
2515
|
|
|
2516 ngx_buf_t *b;
|
|
|
2517 ngx_chain_t *cl, **ll;
|
|
|
2518 ngx_http_upstream_t *u;
|
|
|
2519
|
|
|
2520 u = r->upstream;
|
|
|
2521
|
|
|
2522 for (cl = u->out_bufs, ll = &u->out_bufs; cl; cl = cl->next) {
|
|
|
2523 ll = &cl->next;
|
|
|
2524 }
|
|
|
2525
|
|
|
2526 cl = ngx_chain_get_free_buf(r->pool, &u->free_bufs);
|
|
|
2527 if (cl == NULL) {
|
|
|
2528 return NGX_ERROR;
|
|
|
2529 }
|
|
|
2530
|
|
|
2531 *ll = cl;
|
|
|
2532
|
|
|
2533 cl->buf->flush = 1;
|
|
|
2534 cl->buf->memory = 1;
|
|
|
2535
|
|
|
2536 b = &u->buffer;
|
|
|
2537
|
|
|
2538 cl->buf->pos = b->last;
|
|
|
2539 b->last += bytes;
|
|
|
2540 cl->buf->last = b->last;
|
|
366
|
2541 cl->buf->tag = u->output.tag;
|
|
130
|
2542
|
|
640
|
2543 if (u->length == -1) {
|
|
130
|
2544 return NGX_OK;
|
|
|
2545 }
|
|
|
2546
|
|
|
2547 u->length -= bytes;
|
|
|
2548
|
|
|
2549 return NGX_OK;
|
|
|
2550 }
|
|
|
2551
|
|
|
2552
|
|
|
2553 static void
|
|
58
|
2554 ngx_http_upstream_process_downstream(ngx_http_request_t *r)
|
|
|
2555 {
|
|
428
|
2556 ngx_event_t *wev;
|
|
|
2557 ngx_connection_t *c;
|
|
58
|
2558 ngx_event_pipe_t *p;
|
|
28
|
2559 ngx_http_upstream_t *u;
|
|
|
2560
|
|
428
|
2561 c = r->connection;
|
|
28
|
2562 u = r->upstream;
|
|
130
|
2563 p = u->pipe;
|
|
428
|
2564 wev = c->write;
|
|
|
2565
|
|
|
2566 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
|
2567 "http upstream process downstream");
|
|
|
2568
|
|
|
2569 c->log->action = "sending to client";
|
|
|
2570
|
|
|
2571 if (wev->timedout) {
|
|
|
2572
|
|
|
2573 if (wev->delayed) {
|
|
|
2574
|
|
|
2575 wev->timedout = 0;
|
|
|
2576 wev->delayed = 0;
|
|
|
2577
|
|
|
2578 if (!wev->ready) {
|
|
|
2579 ngx_add_timer(wev, p->send_timeout);
|
|
|
2580
|
|
|
2581 if (ngx_handle_write_event(wev, p->send_lowat) != NGX_OK) {
|
|
|
2582 ngx_http_upstream_finalize_request(r, u, 0);
|
|
|
2583 }
|
|
|
2584
|
|
|
2585 return;
|
|
|
2586 }
|
|
|
2587
|
|
|
2588 if (ngx_event_pipe(p, wev->write) == NGX_ABORT) {
|
|
|
2589 ngx_http_upstream_finalize_request(r, u, 0);
|
|
|
2590 return;
|
|
76
|
2591 }
|
|
28
|
2592
|
|
|
2593 } else {
|
|
428
|
2594 p->downstream_error = 1;
|
|
|
2595 c->timedout = 1;
|
|
|
2596 ngx_connection_error(c, NGX_ETIMEDOUT, "client timed out");
|
|
28
|
2597 }
|
|
|
2598
|
|
|
2599 } else {
|
|
428
|
2600
|
|
|
2601 if (wev->delayed) {
|
|
|
2602
|
|
76
|
2603 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
|
2604 "http downstream delayed");
|
|
|
2605
|
|
428
|
2606 if (ngx_handle_write_event(wev, p->send_lowat) != NGX_OK) {
|
|
426
|
2607 ngx_http_upstream_finalize_request(r, u, 0);
|
|
76
|
2608 }
|
|
|
2609
|
|
|
2610 return;
|
|
|
2611 }
|
|
|
2612
|
|
428
|
2613 if (ngx_event_pipe(p, 1) == NGX_ABORT) {
|
|
28
|
2614 ngx_http_upstream_finalize_request(r, u, 0);
|
|
|
2615 return;
|
|
|
2616 }
|
|
|
2617 }
|
|
126
|
2618
|
|
428
|
2619 ngx_http_upstream_process_request(r);
|
|
|
2620 }
|
|
|
2621
|
|
|
2622
|
|
|
2623 static void
|
|
430
|
2624 ngx_http_upstream_process_upstream(ngx_http_request_t *r,
|
|
|
2625 ngx_http_upstream_t *u)
|
|
428
|
2626 {
|
|
430
|
2627 ngx_connection_t *c;
|
|
|
2628
|
|
|
2629 c = u->peer.connection;
|
|
428
|
2630
|
|
|
2631 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
|
2632 "http upstream process upstream");
|
|
|
2633
|
|
|
2634 c->log->action = "reading upstream";
|
|
|
2635
|
|
430
|
2636 if (c->read->timedout) {
|
|
|
2637 u->pipe->upstream_error = 1;
|
|
428
|
2638 ngx_connection_error(c, NGX_ETIMEDOUT, "upstream timed out");
|
|
|
2639
|
|
|
2640 } else {
|
|
430
|
2641 if (ngx_event_pipe(u->pipe, 0) == NGX_ABORT) {
|
|
428
|
2642 ngx_http_upstream_finalize_request(r, u, 0);
|
|
|
2643 return;
|
|
|
2644 }
|
|
|
2645 }
|
|
|
2646
|
|
|
2647 ngx_http_upstream_process_request(r);
|
|
|
2648 }
|
|
|
2649
|
|
|
2650
|
|
|
2651 static void
|
|
|
2652 ngx_http_upstream_process_request(ngx_http_request_t *r)
|
|
|
2653 {
|
|
|
2654 ngx_temp_file_t *tf;
|
|
|
2655 ngx_event_pipe_t *p;
|
|
|
2656 ngx_http_upstream_t *u;
|
|
|
2657
|
|
|
2658 u = r->upstream;
|
|
|
2659 p = u->pipe;
|
|
|
2660
|
|
28
|
2661 if (u->peer.connection) {
|
|
|
2662
|
|
318
|
2663 if (u->store) {
|
|
|
2664
|
|
440
|
2665 if (p->upstream_eof || p->upstream_done) {
|
|
438
|
2666
|
|
662
|
2667 tf = u->pipe->temp_file;
|
|
|
2668
|
|
438
|
2669 if (u->headers_in.status_n == NGX_HTTP_OK
|
|
|
2670 && (u->headers_in.content_length_n == -1
|
|
|
2671 || (u->headers_in.content_length_n == tf->offset)))
|
|
|
2672 {
|
|
|
2673 ngx_http_upstream_store(r, u);
|
|
662
|
2674 u->store = 0;
|
|
318
|
2675 }
|
|
|
2676 }
|
|
|
2677 }
|
|
|
2678
|
|
464
|
2679 #if (NGX_HTTP_CACHE)
|
|
|
2680
|
|
|
2681 if (u->cacheable) {
|
|
|
2682
|
|
|
2683 if (p->upstream_done) {
|
|
|
2684 ngx_http_file_cache_update(r, u->pipe->temp_file);
|
|
|
2685
|
|
|
2686 } else if (p->upstream_eof) {
|
|
|
2687
|
|
650
|
2688 tf = u->pipe->temp_file;
|
|
|
2689
|
|
|
2690 if (u->headers_in.content_length_n == -1
|
|
|
2691 || u->headers_in.content_length_n
|
|
|
2692 == tf->offset - (off_t) r->cache->body_start)
|
|
|
2693 {
|
|
|
2694 ngx_http_file_cache_update(r, tf);
|
|
|
2695
|
|
|
2696 } else {
|
|
|
2697 ngx_http_file_cache_free(r->cache, tf);
|
|
|
2698 }
|
|
464
|
2699
|
|
|
2700 } else if (p->upstream_error) {
|
|
590
|
2701 ngx_http_file_cache_free(r->cache, u->pipe->temp_file);
|
|
28
|
2702 }
|
|
|
2703 }
|
|
|
2704
|
|
|
2705 #endif
|
|
|
2706
|
|
|
2707 if (p->upstream_done || p->upstream_eof || p->upstream_error) {
|
|
428
|
2708 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
32
|
2709 "http upstream exit: %p", p->out);
|
|
28
|
2710 #if 0
|
|
|
2711 ngx_http_busy_unlock(u->conf->busy_lock, &u->busy_lock);
|
|
|
2712 #endif
|
|
|
2713 ngx_http_upstream_finalize_request(r, u, 0);
|
|
|
2714 return;
|
|
|
2715 }
|
|
|
2716 }
|
|
|
2717
|
|
|
2718 if (p->downstream_error) {
|
|
428
|
2719 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
32
|
2720 "http upstream downstream error");
|
|
28
|
2721
|
|
482
|
2722 if (!u->cacheable && !u->store && u->peer.connection) {
|
|
28
|
2723 ngx_http_upstream_finalize_request(r, u, 0);
|
|
|
2724 }
|
|
|
2725 }
|
|
|
2726 }
|
|
|
2727
|
|
|
2728
|
|
36
|
2729 static void
|
|
318
|
2730 ngx_http_upstream_store(ngx_http_request_t *r, ngx_http_upstream_t *u)
|
|
|
2731 {
|
|
370
|
2732 size_t root;
|
|
|
2733 time_t lm;
|
|
|
2734 ngx_str_t path;
|
|
|
2735 ngx_temp_file_t *tf;
|
|
|
2736 ngx_ext_rename_file_t ext;
|
|
318
|
2737
|
|
358
|
2738 tf = u->pipe->temp_file;
|
|
|
2739
|
|
|
2740 if (tf->file.fd == NGX_INVALID_FILE) {
|
|
318
|
2741
|
|
|
2742 /* create file for empty 200 response */
|
|
|
2743
|
|
|
2744 tf = ngx_pcalloc(r->pool, sizeof(ngx_temp_file_t));
|
|
|
2745 if (tf == NULL) {
|
|
|
2746 return;
|
|
|
2747 }
|
|
|
2748
|
|
|
2749 tf->file.fd = NGX_INVALID_FILE;
|
|
|
2750 tf->file.log = r->connection->log;
|
|
|
2751 tf->path = u->conf->temp_path;
|
|
|
2752 tf->pool = r->pool;
|
|
|
2753 tf->persistent = 1;
|
|
|
2754
|
|
|
2755 if (ngx_create_temp_file(&tf->file, tf->path, tf->pool,
|
|
|
2756 tf->persistent, tf->clean, tf->access)
|
|
|
2757 != NGX_OK)
|
|
|
2758 {
|
|
|
2759 return;
|
|
|
2760 }
|
|
|
2761
|
|
|
2762 u->pipe->temp_file = tf;
|
|
|
2763 }
|
|
|
2764
|
|
370
|
2765 ext.access = u->conf->store_access;
|
|
430
|
2766 ext.path_access = u->conf->store_access;
|
|
370
|
2767 ext.time = -1;
|
|
|
2768 ext.create_path = 1;
|
|
|
2769 ext.delete_file = 1;
|
|
|
2770 ext.log = r->connection->log;
|
|
318
|
2771
|
|
356
|
2772 if (u->headers_in.last_modified) {
|
|
|
2773
|
|
370
|
2774 lm = ngx_http_parse_time(u->headers_in.last_modified->value.data,
|
|
|
2775 u->headers_in.last_modified->value.len);
|
|
318
|
2776
|
|
|
2777 if (lm != NGX_ERROR) {
|
|
370
|
2778 ext.time = lm;
|
|
|
2779 ext.fd = tf->file.fd;
|
|
318
|
2780 }
|
|
|
2781 }
|
|
|
2782
|
|
320
|
2783 if (u->conf->store_lengths == NULL) {
|
|
|
2784
|
|
|
2785 ngx_http_map_uri_to_path(r, &path, &root, 0);
|
|
|
2786
|
|
|
2787 } else {
|
|
|
2788 if (ngx_http_script_run(r, &path, u->conf->store_lengths->elts, 0,
|
|
|
2789 u->conf->store_values->elts)
|
|
|
2790 == NULL)
|
|
|
2791 {
|
|
|
2792 return;
|
|
|
2793 }
|
|
|
2794 }
|
|
318
|
2795
|
|
516
|
2796 path.len--;
|
|
|
2797
|
|
318
|
2798 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
370
|
2799 "upstream stores \"%s\" to \"%s\"",
|
|
|
2800 tf->file.name.data, path.data);
|
|
|
2801
|
|
|
2802 (void) ngx_ext_rename_file(&tf->file.name, &path, &ext);
|
|
318
|
2803 }
|
|
|
2804
|
|
|
2805
|
|
|
2806 static void
|
|
430
|
2807 ngx_http_upstream_dummy_handler(ngx_http_request_t *r, ngx_http_upstream_t *u)
|
|
28
|
2808 {
|
|
430
|
2809 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
28
|
2810 "http upstream dummy handler");
|
|
|
2811 }
|
|
|
2812
|
|
|
2813
|
|
36
|
2814 static void
|
|
|
2815 ngx_http_upstream_next(ngx_http_request_t *r, ngx_http_upstream_t *u,
|
|
|
2816 ngx_uint_t ft_type)
|
|
28
|
2817 {
|
|
260
|
2818 ngx_uint_t status, state;
|
|
28
|
2819
|
|
|
2820 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
260
|
2821 "http next upstream, %xi", ft_type);
|
|
28
|
2822
|
|
|
2823 #if 0
|
|
|
2824 ngx_http_busy_unlock(u->conf->busy_lock, &u->busy_lock);
|
|
|
2825 #endif
|
|
|
2826
|
|
74
|
2827 if (ft_type == NGX_HTTP_UPSTREAM_FT_HTTP_404) {
|
|
260
|
2828 state = NGX_PEER_NEXT;
|
|
74
|
2829 } else {
|
|
260
|
2830 state = NGX_PEER_FAILED;
|
|
28
|
2831 }
|
|
74
|
2832
|
|
326
|
2833 if (ft_type != NGX_HTTP_UPSTREAM_FT_NOLIVE) {
|
|
|
2834 u->peer.free(&u->peer, u->peer.data, state);
|
|
|
2835 }
|
|
74
|
2836
|
|
28
|
2837 if (ft_type == NGX_HTTP_UPSTREAM_FT_TIMEOUT) {
|
|
|
2838 ngx_log_error(NGX_LOG_ERR, r->connection->log, NGX_ETIMEDOUT,
|
|
|
2839 "upstream timed out");
|
|
|
2840 }
|
|
126
|
2841
|
|
28
|
2842 if (u->peer.cached && ft_type == NGX_HTTP_UPSTREAM_FT_ERROR) {
|
|
|
2843 status = 0;
|
|
|
2844
|
|
640
|
2845 /* TODO: inform balancer instead */
|
|
|
2846
|
|
|
2847 u->peer.tries++;
|
|
|
2848
|
|
28
|
2849 } else {
|
|
|
2850 switch(ft_type) {
|
|
|
2851
|
|
|
2852 case NGX_HTTP_UPSTREAM_FT_TIMEOUT:
|
|
|
2853 status = NGX_HTTP_GATEWAY_TIME_OUT;
|
|
|
2854 break;
|
|
|
2855
|
|
|
2856 case NGX_HTTP_UPSTREAM_FT_HTTP_500:
|
|
|
2857 status = NGX_HTTP_INTERNAL_SERVER_ERROR;
|
|
|
2858 break;
|
|
|
2859
|
|
|
2860 case NGX_HTTP_UPSTREAM_FT_HTTP_404:
|
|
|
2861 status = NGX_HTTP_NOT_FOUND;
|
|
|
2862 break;
|
|
|
2863
|
|
|
2864 /*
|
|
|
2865 * NGX_HTTP_UPSTREAM_FT_BUSY_LOCK and NGX_HTTP_UPSTREAM_FT_MAX_WAITING
|
|
|
2866 * never reach here
|
|
|
2867 */
|
|
|
2868
|
|
|
2869 default:
|
|
|
2870 status = NGX_HTTP_BAD_GATEWAY;
|
|
|
2871 }
|
|
|
2872 }
|
|
|
2873
|
|
132
|
2874 if (r->connection->error) {
|
|
28
|
2875 ngx_http_upstream_finalize_request(r, u,
|
|
|
2876 NGX_HTTP_CLIENT_CLOSED_REQUEST);
|
|
|
2877 return;
|
|
|
2878 }
|
|
|
2879
|
|
|
2880 if (status) {
|
|
|
2881 u->state->status = status;
|
|
|
2882
|
|
74
|
2883 if (u->peer.tries == 0 || !(u->conf->next_upstream & ft_type)) {
|
|
28
|
2884
|
|
|
2885 #if (NGX_HTTP_CACHE)
|
|
|
2886
|
|
502
|
2887 if (u->cache_status == NGX_HTTP_CACHE_EXPIRED
|
|
|
2888 && (u->conf->cache_use_stale & ft_type))
|
|
|
2889 {
|
|
486
|
2890 ngx_int_t rc;
|
|
|
2891
|
|
|
2892 rc = u->reinit_request(r);
|
|
|
2893
|
|
|
2894 if (rc == NGX_OK) {
|
|
502
|
2895 u->cache_status = NGX_HTTP_CACHE_STALE;
|
|
486
|
2896 rc = ngx_http_upstream_cache_send(r, u);
|
|
|
2897 }
|
|
|
2898
|
|
|
2899 ngx_http_upstream_finalize_request(r, u, rc);
|
|
28
|
2900 return;
|
|
|
2901 }
|
|
|
2902 #endif
|
|
|
2903
|
|
|
2904 ngx_http_upstream_finalize_request(r, u, status);
|
|
|
2905 return;
|
|
|
2906 }
|
|
|
2907 }
|
|
|
2908
|
|
|
2909 if (u->peer.connection) {
|
|
|
2910 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
2911 "close http upstream connection: %d",
|
|
|
2912 u->peer.connection->fd);
|
|
126
|
2913 #if (NGX_HTTP_SSL)
|
|
260
|
2914
|
|
126
|
2915 if (u->peer.connection->ssl) {
|
|
260
|
2916 u->peer.connection->ssl->no_wait_shutdown = 1;
|
|
|
2917 u->peer.connection->ssl->no_send_shutdown = 1;
|
|
|
2918
|
|
|
2919 (void) ngx_ssl_shutdown(u->peer.connection);
|
|
126
|
2920 }
|
|
|
2921 #endif
|
|
260
|
2922
|
|
640
|
2923 if (u->peer.connection->pool) {
|
|
|
2924 ngx_destroy_pool(u->peer.connection->pool);
|
|
|
2925 }
|
|
|
2926
|
|
28
|
2927 ngx_close_connection(u->peer.connection);
|
|
642
|
2928 u->peer.connection = NULL;
|
|
28
|
2929 }
|
|
|
2930
|
|
|
2931 #if 0
|
|
|
2932 if (u->conf->busy_lock && !u->busy_locked) {
|
|
|
2933 ngx_http_upstream_busy_lock(p);
|
|
|
2934 return;
|
|
|
2935 }
|
|
|
2936 #endif
|
|
|
2937
|
|
|
2938 ngx_http_upstream_connect(r, u);
|
|
|
2939 }
|
|
|
2940
|
|
|
2941
|
|
36
|
2942 static void
|
|
118
|
2943 ngx_http_upstream_cleanup(void *data)
|
|
|
2944 {
|
|
|
2945 ngx_http_request_t *r = data;
|
|
|
2946
|
|
356
|
2947 ngx_http_upstream_t *u;
|
|
|
2948
|
|
118
|
2949 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
2950 "cleanup http upstream request: \"%V\"", &r->uri);
|
|
|
2951
|
|
356
|
2952 u = r->upstream;
|
|
|
2953
|
|
|
2954 if (u->resolved && u->resolved->ctx) {
|
|
|
2955 ngx_resolve_name_done(u->resolved->ctx);
|
|
530
|
2956 u->resolved->ctx = NULL;
|
|
348
|
2957 }
|
|
|
2958
|
|
356
|
2959 ngx_http_upstream_finalize_request(r, u, NGX_DONE);
|
|
118
|
2960 }
|
|
|
2961
|
|
|
2962
|
|
|
2963 static void
|
|
36
|
2964 ngx_http_upstream_finalize_request(ngx_http_request_t *r,
|
|
|
2965 ngx_http_upstream_t *u, ngx_int_t rc)
|
|
28
|
2966 {
|
|
262
|
2967 ngx_time_t *tp;
|
|
112
|
2968
|
|
32
|
2969 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
2970 "finalize http upstream request: %i", rc);
|
|
28
|
2971
|
|
432
|
2972 if (u->cleanup) {
|
|
|
2973 *u->cleanup = NULL;
|
|
562
|
2974 u->cleanup = NULL;
|
|
432
|
2975 }
|
|
118
|
2976
|
|
530
|
2977 if (u->resolved && u->resolved->ctx) {
|
|
|
2978 ngx_resolve_name_done(u->resolved->ctx);
|
|
|
2979 u->resolved->ctx = NULL;
|
|
|
2980 }
|
|
|
2981
|
|
348
|
2982 if (u->state && u->state->response_sec) {
|
|
112
|
2983 tp = ngx_timeofday();
|
|
262
|
2984 u->state->response_sec = tp->sec - u->state->response_sec;
|
|
|
2985 u->state->response_msec = tp->msec - u->state->response_msec;
|
|
430
|
2986
|
|
|
2987 if (u->pipe) {
|
|
|
2988 u->state->response_length = u->pipe->read_length;
|
|
|
2989 }
|
|
112
|
2990 }
|
|
|
2991
|
|
28
|
2992 u->finalize_request(r, rc);
|
|
|
2993
|
|
348
|
2994 if (u->peer.free) {
|
|
|
2995 u->peer.free(&u->peer, u->peer.data, 0);
|
|
|
2996 }
|
|
260
|
2997
|
|
28
|
2998 if (u->peer.connection) {
|
|
260
|
2999
|
|
126
|
3000 #if (NGX_HTTP_SSL)
|
|
|
3001
|
|
|
3002 /* TODO: do not shutdown persistent connection */
|
|
|
3003
|
|
|
3004 if (u->peer.connection->ssl) {
|
|
260
|
3005
|
|
|
3006 /*
|
|
|
3007 * We send the "close notify" shutdown alert to the upstream only
|
|
|
3008 * and do not wait its "close notify" shutdown alert.
|
|
|
3009 * It is acceptable according to the TLS standard.
|
|
|
3010 */
|
|
|
3011
|
|
|
3012 u->peer.connection->ssl->no_wait_shutdown = 1;
|
|
|
3013
|
|
|
3014 (void) ngx_ssl_shutdown(u->peer.connection);
|
|
126
|
3015 }
|
|
|
3016 #endif
|
|
260
|
3017
|
|
|
3018 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
3019 "close http upstream connection: %d",
|
|
|
3020 u->peer.connection->fd);
|
|
|
3021
|
|
640
|
3022 if (u->peer.connection->pool) {
|
|
|
3023 ngx_destroy_pool(u->peer.connection->pool);
|
|
|
3024 }
|
|
|
3025
|
|
28
|
3026 ngx_close_connection(u->peer.connection);
|
|
|
3027 }
|
|
|
3028
|
|
32
|
3029 u->peer.connection = NULL;
|
|
|
3030
|
|
130
|
3031 if (u->pipe && u->pipe->temp_file) {
|
|
28
|
3032 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
3033 "http upstream temp fd: %d",
|
|
130
|
3034 u->pipe->temp_file->file.fd);
|
|
28
|
3035 }
|
|
|
3036
|
|
662
|
3037 if (u->store && u->pipe && u->pipe->temp_file
|
|
|
3038 && u->pipe->temp_file->file.fd != NGX_INVALID_FILE)
|
|
|
3039 {
|
|
|
3040 if (ngx_delete_file(u->pipe->temp_file->file.name.data)
|
|
|
3041 == NGX_FILE_ERROR)
|
|
|
3042 {
|
|
|
3043 ngx_log_error(NGX_LOG_CRIT, r->connection->log, ngx_errno,
|
|
|
3044 ngx_delete_file_n " \"%s\" failed",
|
|
|
3045 u->pipe->temp_file->file.name.data);
|
|
|
3046 }
|
|
|
3047 }
|
|
|
3048
|
|
464
|
3049 #if (NGX_HTTP_CACHE)
|
|
|
3050
|
|
630
|
3051 if (r->cache) {
|
|
|
3052
|
|
|
3053 if (u->cacheable) {
|
|
|
3054
|
|
|
3055 if (rc == NGX_HTTP_BAD_GATEWAY || rc == NGX_HTTP_GATEWAY_TIME_OUT) {
|
|
|
3056 time_t valid;
|
|
|
3057
|
|
|
3058 valid = ngx_http_file_cache_valid(u->conf->cache_valid, rc);
|
|
|
3059
|
|
|
3060 if (valid) {
|
|
|
3061 r->cache->valid_sec = ngx_time() + valid;
|
|
|
3062 r->cache->error = rc;
|
|
|
3063 }
|
|
464
|
3064 }
|
|
|
3065 }
|
|
|
3066
|
|
590
|
3067 ngx_http_file_cache_free(r->cache, u->pipe->temp_file);
|
|
28
|
3068 }
|
|
464
|
3069
|
|
28
|
3070 #endif
|
|
|
3071
|
|
478
|
3072 if (u->header_sent
|
|
632
|
3073 && rc != NGX_HTTP_REQUEST_TIME_OUT
|
|
478
|
3074 && (rc == NGX_ERROR || rc >= NGX_HTTP_SPECIAL_RESPONSE))
|
|
464
|
3075 {
|
|
|
3076 rc = 0;
|
|
|
3077 }
|
|
|
3078
|
|
64
|
3079 if (rc == NGX_DECLINED) {
|
|
|
3080 return;
|
|
|
3081 }
|
|
|
3082
|
|
32
|
3083 r->connection->log->action = "sending to client";
|
|
|
3084
|
|
642
|
3085 if (rc == 0
|
|
|
3086 #if (NGX_HTTP_CACHE)
|
|
|
3087 && !r->cached
|
|
|
3088 #endif
|
|
|
3089 )
|
|
|
3090 {
|
|
426
|
3091 rc = ngx_http_send_special(r, NGX_HTTP_LAST);
|
|
28
|
3092 }
|
|
|
3093
|
|
|
3094 ngx_http_finalize_request(r, rc);
|
|
|
3095 }
|
|
|
3096
|
|
|
3097
|
|
58
|
3098 static ngx_int_t
|
|
|
3099 ngx_http_upstream_process_header_line(ngx_http_request_t *r, ngx_table_elt_t *h,
|
|
|
3100 ngx_uint_t offset)
|
|
126
|
3101 {
|
|
58
|
3102 ngx_table_elt_t **ph;
|
|
126
|
3103
|
|
58
|
3104 ph = (ngx_table_elt_t **) ((char *) &r->upstream->headers_in + offset);
|
|
|
3105
|
|
|
3106 if (*ph == NULL) {
|
|
|
3107 *ph = h;
|
|
|
3108 }
|
|
|
3109
|
|
|
3110 return NGX_OK;
|
|
|
3111 }
|
|
|
3112
|
|
|
3113
|
|
|
3114 static ngx_int_t
|
|
472
|
3115 ngx_http_upstream_ignore_header_line(ngx_http_request_t *r, ngx_table_elt_t *h,
|
|
|
3116 ngx_uint_t offset)
|
|
|
3117 {
|
|
|
3118 return NGX_OK;
|
|
|
3119 }
|
|
|
3120
|
|
|
3121
|
|
|
3122 static ngx_int_t
|
|
640
|
3123 ngx_http_upstream_process_content_length(ngx_http_request_t *r,
|
|
|
3124 ngx_table_elt_t *h, ngx_uint_t offset)
|
|
|
3125 {
|
|
|
3126 ngx_http_upstream_t *u;
|
|
|
3127
|
|
|
3128 u = r->upstream;
|
|
|
3129
|
|
|
3130 u->headers_in.content_length = h;
|
|
|
3131 u->headers_in.content_length_n = ngx_atoof(h->value.data, h->value.len);
|
|
|
3132
|
|
|
3133 return NGX_OK;
|
|
|
3134 }
|
|
|
3135
|
|
|
3136
|
|
|
3137 static ngx_int_t
|
|
584
|
3138 ngx_http_upstream_process_set_cookie(ngx_http_request_t *r, ngx_table_elt_t *h,
|
|
|
3139 ngx_uint_t offset)
|
|
|
3140 {
|
|
|
3141 #if (NGX_HTTP_CACHE)
|
|
|
3142 ngx_http_upstream_t *u;
|
|
|
3143
|
|
|
3144 u = r->upstream;
|
|
|
3145
|
|
|
3146 if (!(u->conf->ignore_headers & NGX_HTTP_UPSTREAM_IGN_SET_COOKIE)) {
|
|
|
3147 u->cacheable = 0;
|
|
|
3148 }
|
|
|
3149 #endif
|
|
|
3150
|
|
|
3151 return NGX_OK;
|
|
|
3152 }
|
|
|
3153
|
|
|
3154
|
|
|
3155 static ngx_int_t
|
|
472
|
3156 ngx_http_upstream_process_cache_control(ngx_http_request_t *r,
|
|
58
|
3157 ngx_table_elt_t *h, ngx_uint_t offset)
|
|
|
3158 {
|
|
484
|
3159 ngx_array_t *pa;
|
|
|
3160 ngx_table_elt_t **ph;
|
|
|
3161 ngx_http_upstream_t *u;
|
|
|
3162
|
|
|
3163 u = r->upstream;
|
|
|
3164 pa = &u->headers_in.cache_control;
|
|
58
|
3165
|
|
|
3166 if (pa->elts == NULL) {
|
|
|
3167 if (ngx_array_init(pa, r->pool, 2, sizeof(ngx_table_elt_t *)) != NGX_OK)
|
|
|
3168 {
|
|
|
3169 return NGX_ERROR;
|
|
|
3170 }
|
|
|
3171 }
|
|
|
3172
|
|
|
3173 ph = ngx_array_push(pa);
|
|
|
3174 if (ph == NULL) {
|
|
|
3175 return NGX_ERROR;
|
|
|
3176 }
|
|
|
3177
|
|
|
3178 *ph = h;
|
|
|
3179
|
|
480
|
3180 #if (NGX_HTTP_CACHE)
|
|
|
3181 {
|
|
|
3182 u_char *p, *last;
|
|
|
3183 ngx_int_t n;
|
|
|
3184
|
|
484
|
3185 if (u->conf->ignore_headers & NGX_HTTP_UPSTREAM_IGN_CACHE_CONTROL) {
|
|
|
3186 return NGX_OK;
|
|
|
3187 }
|
|
|
3188
|
|
472
|
3189 if (r->cache == NULL) {
|
|
|
3190 return NGX_OK;
|
|
|
3191 }
|
|
|
3192
|
|
|
3193 if (r->cache->valid_sec != 0) {
|
|
|
3194 return NGX_OK;
|
|
|
3195 }
|
|
|
3196
|
|
570
|
3197 p = h->value.data;
|
|
|
3198 last = p + h->value.len;
|
|
|
3199
|
|
|
3200 if (ngx_strlcasestrn(p, last, (u_char *) "no-cache", 8 - 1) != NULL
|
|
|
3201 || ngx_strlcasestrn(p, last, (u_char *) "no-store", 8 - 1) != NULL
|
|
|
3202 || ngx_strlcasestrn(p, last, (u_char *) "private", 7 - 1) != NULL)
|
|
472
|
3203 {
|
|
484
|
3204 u->cacheable = 0;
|
|
472
|
3205 return NGX_OK;
|
|
|
3206 }
|
|
|
3207
|
|
570
|
3208 p = ngx_strlcasestrn(p, last, (u_char *) "max-age=", 8 - 1);
|
|
472
|
3209
|
|
|
3210 if (p == NULL) {
|
|
|
3211 return NGX_OK;
|
|
|
3212 }
|
|
|
3213
|
|
|
3214 n = 0;
|
|
|
3215
|
|
|
3216 for (p += 8; p < last; p++) {
|
|
536
|
3217 if (*p == ',' || *p == ';' || *p == ' ') {
|
|
472
|
3218 break;
|
|
|
3219 }
|
|
|
3220
|
|
|
3221 if (*p >= '0' && *p <= '9') {
|
|
|
3222 n = n * 10 + *p - '0';
|
|
|
3223 continue;
|
|
|
3224 }
|
|
|
3225
|
|
484
|
3226 u->cacheable = 0;
|
|
472
|
3227 return NGX_OK;
|
|
|
3228 }
|
|
|
3229
|
|
|
3230 if (n == 0) {
|
|
484
|
3231 u->cacheable = 0;
|
|
472
|
3232 return NGX_OK;
|
|
|
3233 }
|
|
|
3234
|
|
|
3235 r->cache->valid_sec = ngx_time() + n;
|
|
480
|
3236 }
|
|
|
3237 #endif
|
|
|
3238
|
|
58
|
3239 return NGX_OK;
|
|
|
3240 }
|
|
|
3241
|
|
|
3242
|
|
|
3243 static ngx_int_t
|
|
472
|
3244 ngx_http_upstream_process_expires(ngx_http_request_t *r, ngx_table_elt_t *h,
|
|
58
|
3245 ngx_uint_t offset)
|
|
|
3246 {
|
|
484
|
3247 ngx_http_upstream_t *u;
|
|
|
3248
|
|
|
3249 u = r->upstream;
|
|
|
3250 u->headers_in.expires = h;
|
|
480
|
3251
|
|
|
3252 #if (NGX_HTTP_CACHE)
|
|
|
3253 {
|
|
472
|
3254 time_t expires;
|
|
|
3255
|
|
484
|
3256 if (u->conf->ignore_headers & NGX_HTTP_UPSTREAM_IGN_EXPIRES) {
|
|
|
3257 return NGX_OK;
|
|
|
3258 }
|
|
|
3259
|
|
472
|
3260 if (r->cache == NULL) {
|
|
|
3261 return NGX_OK;
|
|
|
3262 }
|
|
|
3263
|
|
|
3264 if (r->cache->valid_sec != 0) {
|
|
|
3265 return NGX_OK;
|
|
|
3266 }
|
|
|
3267
|
|
|
3268 expires = ngx_http_parse_time(h->value.data, h->value.len);
|
|
|
3269
|
|
|
3270 if (expires == NGX_ERROR || expires < ngx_time()) {
|
|
484
|
3271 u->cacheable = 0;
|
|
472
|
3272 return NGX_OK;
|
|
|
3273 }
|
|
|
3274
|
|
|
3275 r->cache->valid_sec = expires;
|
|
480
|
3276 }
|
|
|
3277 #endif
|
|
472
|
3278
|
|
|
3279 return NGX_OK;
|
|
|
3280 }
|
|
|
3281
|
|
|
3282
|
|
|
3283 static ngx_int_t
|
|
|
3284 ngx_http_upstream_process_accel_expires(ngx_http_request_t *r,
|
|
|
3285 ngx_table_elt_t *h, ngx_uint_t offset)
|
|
|
3286 {
|
|
484
|
3287 ngx_http_upstream_t *u;
|
|
|
3288
|
|
|
3289 u = r->upstream;
|
|
|
3290 u->headers_in.x_accel_expires = h;
|
|
480
|
3291
|
|
|
3292 #if (NGX_HTTP_CACHE)
|
|
|
3293 {
|
|
472
|
3294 u_char *p;
|
|
|
3295 size_t len;
|
|
|
3296 ngx_int_t n;
|
|
|
3297
|
|
484
|
3298 if (u->conf->ignore_headers & NGX_HTTP_UPSTREAM_IGN_XA_EXPIRES) {
|
|
|
3299 return NGX_OK;
|
|
|
3300 }
|
|
|
3301
|
|
472
|
3302 if (r->cache == NULL) {
|
|
|
3303 return NGX_OK;
|
|
|
3304 }
|
|
|
3305
|
|
|
3306 len = h->value.len;
|
|
|
3307 p = h->value.data;
|
|
|
3308
|
|
|
3309 if (p[0] != '@') {
|
|
|
3310 n = ngx_atoi(p, len);
|
|
|
3311
|
|
|
3312 switch (n) {
|
|
|
3313 case 0:
|
|
484
|
3314 u->cacheable = 0;
|
|
668
|
3315 /* fall through */
|
|
|
3316
|
|
472
|
3317 case NGX_ERROR:
|
|
|
3318 return NGX_OK;
|
|
|
3319
|
|
|
3320 default:
|
|
|
3321 r->cache->valid_sec = ngx_time() + n;
|
|
|
3322 return NGX_OK;
|
|
|
3323 }
|
|
|
3324 }
|
|
|
3325
|
|
|
3326 p++;
|
|
|
3327 len--;
|
|
|
3328
|
|
|
3329 n = ngx_atoi(p, len);
|
|
|
3330
|
|
|
3331 if (n != NGX_ERROR) {
|
|
|
3332 r->cache->valid_sec = n;
|
|
|
3333 }
|
|
480
|
3334 }
|
|
|
3335 #endif
|
|
472
|
3336
|
|
58
|
3337 return NGX_OK;
|
|
|
3338 }
|
|
|
3339
|
|
|
3340
|
|
|
3341 static ngx_int_t
|
|
76
|
3342 ngx_http_upstream_process_limit_rate(ngx_http_request_t *r, ngx_table_elt_t *h,
|
|
|
3343 ngx_uint_t offset)
|
|
126
|
3344 {
|
|
644
|
3345 ngx_int_t n;
|
|
|
3346 ngx_http_upstream_t *u;
|
|
|
3347
|
|
|
3348 u = r->upstream;
|
|
|
3349 u->headers_in.x_accel_limit_rate = h;
|
|
|
3350
|
|
|
3351 if (u->conf->ignore_headers & NGX_HTTP_UPSTREAM_IGN_XA_LIMIT_RATE) {
|
|
|
3352 return NGX_OK;
|
|
|
3353 }
|
|
76
|
3354
|
|
|
3355 n = ngx_atoi(h->value.data, h->value.len);
|
|
|
3356
|
|
|
3357 if (n != NGX_ERROR) {
|
|
|
3358 r->limit_rate = (size_t) n;
|
|
|
3359 }
|
|
|
3360
|
|
|
3361 return NGX_OK;
|
|
|
3362 }
|
|
|
3363
|
|
|
3364
|
|
|
3365 static ngx_int_t
|
|
198
|
3366 ngx_http_upstream_process_buffering(ngx_http_request_t *r, ngx_table_elt_t *h,
|
|
|
3367 ngx_uint_t offset)
|
|
|
3368 {
|
|
644
|
3369 u_char c0, c1, c2;
|
|
|
3370 ngx_http_upstream_t *u;
|
|
|
3371
|
|
|
3372 u = r->upstream;
|
|
|
3373
|
|
|
3374 if (u->conf->ignore_headers & NGX_HTTP_UPSTREAM_IGN_XA_BUFFERING) {
|
|
|
3375 return NGX_OK;
|
|
|
3376 }
|
|
|
3377
|
|
|
3378 if (u->conf->change_buffering) {
|
|
198
|
3379
|
|
|
3380 if (h->value.len == 2) {
|
|
|
3381 c0 = ngx_tolower(h->value.data[0]);
|
|
|
3382 c1 = ngx_tolower(h->value.data[1]);
|
|
|
3383
|
|
|
3384 if (c0 == 'n' && c1 == 'o') {
|
|
644
|
3385 u->buffering = 0;
|
|
198
|
3386 }
|
|
|
3387
|
|
|
3388 } else if (h->value.len == 3) {
|
|
|
3389 c0 = ngx_tolower(h->value.data[0]);
|
|
|
3390 c1 = ngx_tolower(h->value.data[1]);
|
|
|
3391 c2 = ngx_tolower(h->value.data[2]);
|
|
|
3392
|
|
|
3393 if (c0 == 'y' && c1 == 'e' && c2 == 's') {
|
|
644
|
3394 u->buffering = 1;
|
|
198
|
3395 }
|
|
|
3396 }
|
|
|
3397 }
|
|
|
3398
|
|
|
3399 return NGX_OK;
|
|
|
3400 }
|
|
|
3401
|
|
|
3402
|
|
|
3403 static ngx_int_t
|
|
206
|
3404 ngx_http_upstream_process_charset(ngx_http_request_t *r, ngx_table_elt_t *h,
|
|
|
3405 ngx_uint_t offset)
|
|
|
3406 {
|
|
644
|
3407 if (r->upstream->conf->ignore_headers & NGX_HTTP_UPSTREAM_IGN_XA_CHARSET) {
|
|
|
3408 return NGX_OK;
|
|
|
3409 }
|
|
|
3410
|
|
206
|
3411 r->headers_out.override_charset = &h->value;
|
|
|
3412
|
|
|
3413 return NGX_OK;
|
|
|
3414 }
|
|
|
3415
|
|
|
3416
|
|
|
3417 static ngx_int_t
|
|
640
|
3418 ngx_http_upstream_process_connection(ngx_http_request_t *r, ngx_table_elt_t *h,
|
|
|
3419 ngx_uint_t offset)
|
|
|
3420 {
|
|
|
3421 r->upstream->headers_in.connection = h;
|
|
|
3422
|
|
|
3423 if (ngx_strlcasestrn(h->value.data, h->value.data + h->value.len,
|
|
|
3424 (u_char *) "close", 5 - 1)
|
|
|
3425 != NULL)
|
|
|
3426 {
|
|
|
3427 r->upstream->headers_in.connection_close = 1;
|
|
|
3428 }
|
|
|
3429
|
|
|
3430 return NGX_OK;
|
|
|
3431 }
|
|
|
3432
|
|
|
3433
|
|
|
3434 static ngx_int_t
|
|
|
3435 ngx_http_upstream_process_transfer_encoding(ngx_http_request_t *r,
|
|
|
3436 ngx_table_elt_t *h, ngx_uint_t offset)
|
|
|
3437 {
|
|
|
3438 r->upstream->headers_in.transfer_encoding = h;
|
|
|
3439
|
|
|
3440 if (ngx_strlcasestrn(h->value.data, h->value.data + h->value.len,
|
|
|
3441 (u_char *) "chunked", 7 - 1)
|
|
|
3442 != NULL)
|
|
|
3443 {
|
|
|
3444 r->upstream->headers_in.chunked = 1;
|
|
|
3445 }
|
|
|
3446
|
|
|
3447 return NGX_OK;
|
|
|
3448 }
|
|
|
3449
|
|
|
3450
|
|
|
3451 static ngx_int_t
|
|
58
|
3452 ngx_http_upstream_copy_header_line(ngx_http_request_t *r, ngx_table_elt_t *h,
|
|
|
3453 ngx_uint_t offset)
|
|
|
3454 {
|
|
122
|
3455 ngx_table_elt_t *ho, **ph;
|
|
58
|
3456
|
|
|
3457 ho = ngx_list_push(&r->headers_out.headers);
|
|
|
3458 if (ho == NULL) {
|
|
|
3459 return NGX_ERROR;
|
|
|
3460 }
|
|
|
3461
|
|
|
3462 *ho = *h;
|
|
|
3463
|
|
122
|
3464 if (offset) {
|
|
|
3465 ph = (ngx_table_elt_t **) ((char *) &r->headers_out + offset);
|
|
|
3466 *ph = ho;
|
|
|
3467 }
|
|
|
3468
|
|
58
|
3469 return NGX_OK;
|
|
|
3470 }
|
|
|
3471
|
|
|
3472
|
|
|
3473 static ngx_int_t
|
|
|
3474 ngx_http_upstream_copy_multi_header_lines(ngx_http_request_t *r,
|
|
|
3475 ngx_table_elt_t *h, ngx_uint_t offset)
|
|
|
3476 {
|
|
|
3477 ngx_array_t *pa;
|
|
|
3478 ngx_table_elt_t *ho, **ph;
|
|
|
3479
|
|
|
3480 pa = (ngx_array_t *) ((char *) &r->headers_out + offset);
|
|
|
3481
|
|
|
3482 if (pa->elts == NULL) {
|
|
|
3483 if (ngx_array_init(pa, r->pool, 2, sizeof(ngx_table_elt_t *)) != NGX_OK)
|
|
|
3484 {
|
|
|
3485 return NGX_ERROR;
|
|
|
3486 }
|
|
|
3487 }
|
|
|
3488
|
|
|
3489 ph = ngx_array_push(pa);
|
|
|
3490 if (ph == NULL) {
|
|
|
3491 return NGX_ERROR;
|
|
|
3492 }
|
|
|
3493
|
|
|
3494 ho = ngx_list_push(&r->headers_out.headers);
|
|
|
3495 if (ho == NULL) {
|
|
|
3496 return NGX_ERROR;
|
|
|
3497 }
|
|
|
3498
|
|
|
3499 *ho = *h;
|
|
|
3500 *ph = ho;
|
|
|
3501
|
|
|
3502 return NGX_OK;
|
|
|
3503 }
|
|
|
3504
|
|
|
3505
|
|
|
3506 static ngx_int_t
|
|
|
3507 ngx_http_upstream_copy_content_type(ngx_http_request_t *r, ngx_table_elt_t *h,
|
|
|
3508 ngx_uint_t offset)
|
|
|
3509 {
|
|
206
|
3510 u_char *p, *last;
|
|
|
3511
|
|
|
3512 r->headers_out.content_type_len = h->value.len;
|
|
58
|
3513 r->headers_out.content_type = h->value;
|
|
494
|
3514 r->headers_out.content_type_lowcase = NULL;
|
|
58
|
3515
|
|
206
|
3516 for (p = h->value.data; *p; p++) {
|
|
|
3517
|
|
|
3518 if (*p != ';') {
|
|
|
3519 continue;
|
|
|
3520 }
|
|
|
3521
|
|
|
3522 last = p;
|
|
|
3523
|
|
|
3524 while (*++p == ' ') { /* void */ }
|
|
|
3525
|
|
372
|
3526 if (*p == '\0') {
|
|
|
3527 return NGX_OK;
|
|
|
3528 }
|
|
|
3529
|
|
286
|
3530 if (ngx_strncasecmp(p, (u_char *) "charset=", 8) != 0) {
|
|
206
|
3531 continue;
|
|
|
3532 }
|
|
|
3533
|
|
|
3534 p += 8;
|
|
|
3535
|
|
|
3536 r->headers_out.content_type_len = last - h->value.data;
|
|
|
3537
|
|
410
|
3538 if (*p == '"') {
|
|
|
3539 p++;
|
|
|
3540 }
|
|
|
3541
|
|
|
3542 last = h->value.data + h->value.len;
|
|
|
3543
|
|
|
3544 if (*(last - 1) == '"') {
|
|
|
3545 last--;
|
|
|
3546 }
|
|
|
3547
|
|
|
3548 r->headers_out.charset.len = last - p;
|
|
206
|
3549 r->headers_out.charset.data = p;
|
|
292
|
3550
|
|
|
3551 return NGX_OK;
|
|
206
|
3552 }
|
|
|
3553
|
|
58
|
3554 return NGX_OK;
|
|
|
3555 }
|
|
|
3556
|
|
|
3557
|
|
|
3558 static ngx_int_t
|
|
464
|
3559 ngx_http_upstream_copy_last_modified(ngx_http_request_t *r, ngx_table_elt_t *h,
|
|
|
3560 ngx_uint_t offset)
|
|
|
3561 {
|
|
|
3562 ngx_table_elt_t *ho;
|
|
|
3563
|
|
|
3564 ho = ngx_list_push(&r->headers_out.headers);
|
|
|
3565 if (ho == NULL) {
|
|
|
3566 return NGX_ERROR;
|
|
|
3567 }
|
|
|
3568
|
|
|
3569 *ho = *h;
|
|
|
3570
|
|
510
|
3571 r->headers_out.last_modified = ho;
|
|
|
3572
|
|
464
|
3573 #if (NGX_HTTP_CACHE)
|
|
|
3574
|
|
502
|
3575 if (r->upstream->cacheable) {
|
|
464
|
3576 r->headers_out.last_modified_time = ngx_http_parse_time(h->value.data,
|
|
|
3577 h->value.len);
|
|
|
3578 }
|
|
|
3579
|
|
|
3580 #endif
|
|
|
3581
|
|
|
3582 return NGX_OK;
|
|
|
3583 }
|
|
|
3584
|
|
|
3585
|
|
|
3586 static ngx_int_t
|
|
58
|
3587 ngx_http_upstream_rewrite_location(ngx_http_request_t *r, ngx_table_elt_t *h,
|
|
|
3588 ngx_uint_t offset)
|
|
|
3589 {
|
|
|
3590 ngx_int_t rc;
|
|
|
3591 ngx_table_elt_t *ho;
|
|
|
3592
|
|
|
3593 ho = ngx_list_push(&r->headers_out.headers);
|
|
|
3594 if (ho == NULL) {
|
|
|
3595 return NGX_ERROR;
|
|
|
3596 }
|
|
|
3597
|
|
|
3598 *ho = *h;
|
|
|
3599
|
|
|
3600 if (r->upstream->rewrite_redirect) {
|
|
|
3601 rc = r->upstream->rewrite_redirect(r, ho, 0);
|
|
|
3602
|
|
78
|
3603 if (rc == NGX_DECLINED) {
|
|
|
3604 return NGX_OK;
|
|
|
3605 }
|
|
|
3606
|
|
58
|
3607 if (rc == NGX_OK) {
|
|
|
3608 r->headers_out.location = ho;
|
|
|
3609
|
|
|
3610 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
3611 "rewritten location: \"%V\"", &ho->value);
|
|
|
3612 }
|
|
|
3613
|
|
|
3614 return rc;
|
|
|
3615 }
|
|
|
3616
|
|
348
|
3617 if (ho->value.data[0] != '/') {
|
|
|
3618 r->headers_out.location = ho;
|
|
|
3619 }
|
|
|
3620
|
|
58
|
3621 /*
|
|
|
3622 * we do not set r->headers_out.location here to avoid the handling
|
|
|
3623 * the local redirects without a host name by ngx_http_header_filter()
|
|
|
3624 */
|
|
|
3625
|
|
|
3626 return NGX_OK;
|
|
|
3627 }
|
|
|
3628
|
|
|
3629
|
|
|
3630 static ngx_int_t
|
|
|
3631 ngx_http_upstream_rewrite_refresh(ngx_http_request_t *r, ngx_table_elt_t *h,
|
|
|
3632 ngx_uint_t offset)
|
|
|
3633 {
|
|
|
3634 u_char *p;
|
|
|
3635 ngx_int_t rc;
|
|
|
3636 ngx_table_elt_t *ho;
|
|
|
3637
|
|
|
3638 ho = ngx_list_push(&r->headers_out.headers);
|
|
|
3639 if (ho == NULL) {
|
|
|
3640 return NGX_ERROR;
|
|
|
3641 }
|
|
|
3642
|
|
|
3643 *ho = *h;
|
|
|
3644
|
|
|
3645 if (r->upstream->rewrite_redirect) {
|
|
|
3646
|
|
340
|
3647 p = ngx_strcasestrn(ho->value.data, "url=", 4 - 1);
|
|
58
|
3648
|
|
|
3649 if (p) {
|
|
|
3650 rc = r->upstream->rewrite_redirect(r, ho, p + 4 - ho->value.data);
|
|
|
3651
|
|
|
3652 } else {
|
|
|
3653 return NGX_OK;
|
|
|
3654 }
|
|
|
3655
|
|
78
|
3656 if (rc == NGX_DECLINED) {
|
|
|
3657 return NGX_OK;
|
|
|
3658 }
|
|
|
3659
|
|
58
|
3660 if (rc == NGX_OK) {
|
|
348
|
3661 r->headers_out.refresh = ho;
|
|
|
3662
|
|
58
|
3663 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
3664 "rewritten refresh: \"%V\"", &ho->value);
|
|
|
3665 }
|
|
|
3666
|
|
|
3667 return rc;
|
|
|
3668 }
|
|
|
3669
|
|
348
|
3670 r->headers_out.refresh = ho;
|
|
|
3671
|
|
58
|
3672 return NGX_OK;
|
|
|
3673 }
|
|
|
3674
|
|
|
3675
|
|
464
|
3676 static ngx_int_t
|
|
662
|
3677 ngx_http_upstream_rewrite_set_cookie(ngx_http_request_t *r, ngx_table_elt_t *h,
|
|
|
3678 ngx_uint_t offset)
|
|
|
3679 {
|
|
676
|
3680 ngx_int_t rc;
|
|
662
|
3681 ngx_table_elt_t *ho;
|
|
|
3682
|
|
|
3683 ho = ngx_list_push(&r->headers_out.headers);
|
|
|
3684 if (ho == NULL) {
|
|
|
3685 return NGX_ERROR;
|
|
|
3686 }
|
|
|
3687
|
|
|
3688 *ho = *h;
|
|
|
3689
|
|
|
3690 if (r->upstream->rewrite_cookie) {
|
|
676
|
3691 rc = r->upstream->rewrite_cookie(r, ho);
|
|
|
3692
|
|
|
3693 if (rc == NGX_DECLINED) {
|
|
|
3694 return NGX_OK;
|
|
|
3695 }
|
|
|
3696
|
|
|
3697 #if (NGX_DEBUG)
|
|
|
3698 if (rc == NGX_OK) {
|
|
|
3699 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
3700 "rewritten cookie: \"%V\"", &ho->value);
|
|
|
3701 }
|
|
|
3702 #endif
|
|
|
3703
|
|
|
3704 return rc;
|
|
662
|
3705 }
|
|
|
3706
|
|
|
3707 return NGX_OK;
|
|
|
3708 }
|
|
|
3709
|
|
|
3710
|
|
|
3711 static ngx_int_t
|
|
464
|
3712 ngx_http_upstream_copy_allow_ranges(ngx_http_request_t *r,
|
|
|
3713 ngx_table_elt_t *h, ngx_uint_t offset)
|
|
|
3714 {
|
|
|
3715 ngx_table_elt_t *ho;
|
|
|
3716
|
|
|
3717 #if (NGX_HTTP_CACHE)
|
|
|
3718
|
|
|
3719 if (r->cached) {
|
|
|
3720 r->allow_ranges = 1;
|
|
|
3721 return NGX_OK;
|
|
|
3722
|
|
|
3723 }
|
|
|
3724
|
|
|
3725 #endif
|
|
|
3726
|
|
|
3727 ho = ngx_list_push(&r->headers_out.headers);
|
|
|
3728 if (ho == NULL) {
|
|
|
3729 return NGX_ERROR;
|
|
|
3730 }
|
|
|
3731
|
|
|
3732 *ho = *h;
|
|
|
3733
|
|
510
|
3734 r->headers_out.accept_ranges = ho;
|
|
|
3735
|
|
464
|
3736 return NGX_OK;
|
|
|
3737 }
|
|
|
3738
|
|
|
3739
|
|
58
|
3740 #if (NGX_HTTP_GZIP)
|
|
|
3741
|
|
|
3742 static ngx_int_t
|
|
|
3743 ngx_http_upstream_copy_content_encoding(ngx_http_request_t *r,
|
|
|
3744 ngx_table_elt_t *h, ngx_uint_t offset)
|
|
|
3745 {
|
|
|
3746 ngx_table_elt_t *ho;
|
|
|
3747
|
|
|
3748 ho = ngx_list_push(&r->headers_out.headers);
|
|
|
3749 if (ho == NULL) {
|
|
|
3750 return NGX_ERROR;
|
|
|
3751 }
|
|
|
3752
|
|
|
3753 *ho = *h;
|
|
|
3754
|
|
|
3755 r->headers_out.content_encoding = ho;
|
|
|
3756
|
|
|
3757 return NGX_OK;
|
|
|
3758 }
|
|
|
3759
|
|
|
3760 #endif
|
|
|
3761
|
|
|
3762
|
|
36
|
3763 static ngx_int_t
|
|
122
|
3764 ngx_http_upstream_add_variables(ngx_conf_t *cf)
|
|
28
|
3765 {
|
|
260
|
3766 ngx_http_variable_t *var, *v;
|
|
28
|
3767
|
|
122
|
3768 for (v = ngx_http_upstream_vars; v->name.len; v++) {
|
|
|
3769 var = ngx_http_add_variable(cf, &v->name, v->flags);
|
|
|
3770 if (var == NULL) {
|
|
|
3771 return NGX_ERROR;
|
|
|
3772 }
|
|
|
3773
|
|
186
|
3774 var->get_handler = v->get_handler;
|
|
122
|
3775 var->data = v->data;
|
|
|
3776 }
|
|
|
3777
|
|
28
|
3778 return NGX_OK;
|
|
|
3779 }
|
|
58
|
3780
|
|
|
3781
|
|
122
|
3782 static ngx_int_t
|
|
298
|
3783 ngx_http_upstream_addr_variable(ngx_http_request_t *r,
|
|
|
3784 ngx_http_variable_value_t *v, uintptr_t data)
|
|
|
3785 {
|
|
|
3786 u_char *p;
|
|
|
3787 size_t len;
|
|
|
3788 ngx_uint_t i;
|
|
|
3789 ngx_http_upstream_state_t *state;
|
|
|
3790
|
|
|
3791 v->valid = 1;
|
|
340
|
3792 v->no_cacheable = 0;
|
|
298
|
3793 v->not_found = 0;
|
|
|
3794
|
|
|
3795 if (r->upstream_states == NULL || r->upstream_states->nelts == 0) {
|
|
|
3796 v->not_found = 1;
|
|
|
3797 return NGX_OK;
|
|
|
3798 }
|
|
|
3799
|
|
|
3800 len = 0;
|
|
|
3801 state = r->upstream_states->elts;
|
|
|
3802
|
|
|
3803 for (i = 0; i < r->upstream_states->nelts; i++) {
|
|
|
3804 if (state[i].peer) {
|
|
|
3805 len += state[i].peer->len + 2;
|
|
|
3806
|
|
|
3807 } else {
|
|
|
3808 len += 3;
|
|
|
3809 }
|
|
|
3810 }
|
|
|
3811
|
|
382
|
3812 p = ngx_pnalloc(r->pool, len);
|
|
298
|
3813 if (p == NULL) {
|
|
|
3814 return NGX_ERROR;
|
|
|
3815 }
|
|
|
3816
|
|
|
3817 v->data = p;
|
|
|
3818
|
|
|
3819 i = 0;
|
|
|
3820
|
|
|
3821 for ( ;; ) {
|
|
|
3822 if (state[i].peer) {
|
|
|
3823 p = ngx_cpymem(p, state[i].peer->data, state[i].peer->len);
|
|
|
3824 }
|
|
|
3825
|
|
|
3826 if (++i == r->upstream_states->nelts) {
|
|
|
3827 break;
|
|
|
3828 }
|
|
|
3829
|
|
|
3830 if (state[i].peer) {
|
|
|
3831 *p++ = ',';
|
|
|
3832 *p++ = ' ';
|
|
|
3833
|
|
|
3834 } else {
|
|
|
3835 *p++ = ' ';
|
|
|
3836 *p++ = ':';
|
|
|
3837 *p++ = ' ';
|
|
|
3838
|
|
|
3839 if (++i == r->upstream_states->nelts) {
|
|
|
3840 break;
|
|
|
3841 }
|
|
|
3842
|
|
|
3843 continue;
|
|
|
3844 }
|
|
|
3845 }
|
|
|
3846
|
|
|
3847 v->len = p - v->data;
|
|
|
3848
|
|
|
3849 return NGX_OK;
|
|
|
3850 }
|
|
|
3851
|
|
|
3852
|
|
|
3853 static ngx_int_t
|
|
122
|
3854 ngx_http_upstream_status_variable(ngx_http_request_t *r,
|
|
|
3855 ngx_http_variable_value_t *v, uintptr_t data)
|
|
|
3856 {
|
|
|
3857 u_char *p;
|
|
|
3858 size_t len;
|
|
|
3859 ngx_uint_t i;
|
|
|
3860 ngx_http_upstream_state_t *state;
|
|
|
3861
|
|
|
3862 v->valid = 1;
|
|
340
|
3863 v->no_cacheable = 0;
|
|
122
|
3864 v->not_found = 0;
|
|
|
3865
|
|
296
|
3866 if (r->upstream_states == NULL || r->upstream_states->nelts == 0) {
|
|
122
|
3867 v->not_found = 1;
|
|
|
3868 return NGX_OK;
|
|
|
3869 }
|
|
|
3870
|
|
296
|
3871 len = r->upstream_states->nelts * (3 + 2);
|
|
122
|
3872
|
|
382
|
3873 p = ngx_pnalloc(r->pool, len);
|
|
122
|
3874 if (p == NULL) {
|
|
|
3875 return NGX_ERROR;
|
|
|
3876 }
|
|
|
3877
|
|
|
3878 v->data = p;
|
|
|
3879
|
|
|
3880 i = 0;
|
|
296
|
3881 state = r->upstream_states->elts;
|
|
122
|
3882
|
|
|
3883 for ( ;; ) {
|
|
296
|
3884 if (state[i].status) {
|
|
|
3885 p = ngx_sprintf(p, "%ui", state[i].status);
|
|
122
|
3886
|
|
|
3887 } else {
|
|
296
|
3888 *p++ = '-';
|
|
122
|
3889 }
|
|
|
3890
|
|
296
|
3891 if (++i == r->upstream_states->nelts) {
|
|
122
|
3892 break;
|
|
|
3893 }
|
|
|
3894
|
|
296
|
3895 if (state[i].peer) {
|
|
|
3896 *p++ = ',';
|
|
|
3897 *p++ = ' ';
|
|
|
3898
|
|
|
3899 } else {
|
|
|
3900 *p++ = ' ';
|
|
|
3901 *p++ = ':';
|
|
|
3902 *p++ = ' ';
|
|
|
3903
|
|
|
3904 if (++i == r->upstream_states->nelts) {
|
|
|
3905 break;
|
|
|
3906 }
|
|
|
3907
|
|
|
3908 continue;
|
|
|
3909 }
|
|
122
|
3910 }
|
|
|
3911
|
|
|
3912 v->len = p - v->data;
|
|
|
3913
|
|
|
3914 return NGX_OK;
|
|
|
3915 }
|
|
|
3916
|
|
|
3917
|
|
|
3918 static ngx_int_t
|
|
|
3919 ngx_http_upstream_response_time_variable(ngx_http_request_t *r,
|
|
|
3920 ngx_http_variable_value_t *v, uintptr_t data)
|
|
|
3921 {
|
|
|
3922 u_char *p;
|
|
|
3923 size_t len;
|
|
|
3924 ngx_uint_t i;
|
|
262
|
3925 ngx_msec_int_t ms;
|
|
122
|
3926 ngx_http_upstream_state_t *state;
|
|
|
3927
|
|
|
3928 v->valid = 1;
|
|
340
|
3929 v->no_cacheable = 0;
|
|
122
|
3930 v->not_found = 0;
|
|
|
3931
|
|
296
|
3932 if (r->upstream_states == NULL || r->upstream_states->nelts == 0) {
|
|
122
|
3933 v->not_found = 1;
|
|
|
3934 return NGX_OK;
|
|
|
3935 }
|
|
|
3936
|
|
296
|
3937 len = r->upstream_states->nelts * (NGX_TIME_T_LEN + 4 + 2);
|
|
122
|
3938
|
|
382
|
3939 p = ngx_pnalloc(r->pool, len);
|
|
122
|
3940 if (p == NULL) {
|
|
|
3941 return NGX_ERROR;
|
|
|
3942 }
|
|
|
3943
|
|
|
3944 v->data = p;
|
|
|
3945
|
|
|
3946 i = 0;
|
|
296
|
3947 state = r->upstream_states->elts;
|
|
122
|
3948
|
|
|
3949 for ( ;; ) {
|
|
296
|
3950 if (state[i].status) {
|
|
346
|
3951 ms = (ngx_msec_int_t)
|
|
|
3952 (state[i].response_sec * 1000 + state[i].response_msec);
|
|
570
|
3953 ms = ngx_max(ms, 0);
|
|
262
|
3954 p = ngx_sprintf(p, "%d.%03d", ms / 1000, ms % 1000);
|
|
296
|
3955
|
|
|
3956 } else {
|
|
|
3957 *p++ = '-';
|
|
122
|
3958 }
|
|
|
3959
|
|
296
|
3960 if (++i == r->upstream_states->nelts) {
|
|
122
|
3961 break;
|
|
|
3962 }
|
|
|
3963
|
|
296
|
3964 if (state[i].peer) {
|
|
|
3965 *p++ = ',';
|
|
|
3966 *p++ = ' ';
|
|
|
3967
|
|
|
3968 } else {
|
|
|
3969 *p++ = ' ';
|
|
|
3970 *p++ = ':';
|
|
|
3971 *p++ = ' ';
|
|
|
3972
|
|
|
3973 if (++i == r->upstream_states->nelts) {
|
|
|
3974 break;
|
|
|
3975 }
|
|
|
3976
|
|
|
3977 continue;
|
|
|
3978 }
|
|
122
|
3979 }
|
|
|
3980
|
|
|
3981 v->len = p - v->data;
|
|
|
3982
|
|
|
3983 return NGX_OK;
|
|
|
3984 }
|
|
|
3985
|
|
|
3986
|
|
430
|
3987 static ngx_int_t
|
|
|
3988 ngx_http_upstream_response_length_variable(ngx_http_request_t *r,
|
|
|
3989 ngx_http_variable_value_t *v, uintptr_t data)
|
|
|
3990 {
|
|
|
3991 u_char *p;
|
|
|
3992 size_t len;
|
|
|
3993 ngx_uint_t i;
|
|
|
3994 ngx_http_upstream_state_t *state;
|
|
|
3995
|
|
|
3996 v->valid = 1;
|
|
|
3997 v->no_cacheable = 0;
|
|
|
3998 v->not_found = 0;
|
|
|
3999
|
|
|
4000 if (r->upstream_states == NULL || r->upstream_states->nelts == 0) {
|
|
|
4001 v->not_found = 1;
|
|
|
4002 return NGX_OK;
|
|
|
4003 }
|
|
|
4004
|
|
|
4005 len = r->upstream_states->nelts * (NGX_OFF_T_LEN + 2);
|
|
|
4006
|
|
|
4007 p = ngx_pnalloc(r->pool, len);
|
|
|
4008 if (p == NULL) {
|
|
|
4009 return NGX_ERROR;
|
|
|
4010 }
|
|
|
4011
|
|
|
4012 v->data = p;
|
|
|
4013
|
|
|
4014 i = 0;
|
|
|
4015 state = r->upstream_states->elts;
|
|
|
4016
|
|
|
4017 for ( ;; ) {
|
|
|
4018 p = ngx_sprintf(p, "%O", state[i].response_length);
|
|
|
4019
|
|
|
4020 if (++i == r->upstream_states->nelts) {
|
|
|
4021 break;
|
|
|
4022 }
|
|
|
4023
|
|
|
4024 if (state[i].peer) {
|
|
|
4025 *p++ = ',';
|
|
|
4026 *p++ = ' ';
|
|
|
4027
|
|
|
4028 } else {
|
|
|
4029 *p++ = ' ';
|
|
|
4030 *p++ = ':';
|
|
|
4031 *p++ = ' ';
|
|
|
4032
|
|
|
4033 if (++i == r->upstream_states->nelts) {
|
|
|
4034 break;
|
|
|
4035 }
|
|
|
4036
|
|
|
4037 continue;
|
|
|
4038 }
|
|
|
4039 }
|
|
|
4040
|
|
|
4041 v->len = p - v->data;
|
|
|
4042
|
|
|
4043 return NGX_OK;
|
|
|
4044 }
|
|
|
4045
|
|
|
4046
|
|
296
|
4047 ngx_int_t
|
|
|
4048 ngx_http_upstream_header_variable(ngx_http_request_t *r,
|
|
|
4049 ngx_http_variable_value_t *v, uintptr_t data)
|
|
|
4050 {
|
|
|
4051 if (r->upstream == NULL) {
|
|
|
4052 v->not_found = 1;
|
|
|
4053 return NGX_OK;
|
|
|
4054 }
|
|
|
4055
|
|
|
4056 return ngx_http_variable_unknown_header(v, (ngx_str_t *) data,
|
|
|
4057 &r->upstream->headers_in.headers.part,
|
|
|
4058 sizeof("upstream_http_") - 1);
|
|
|
4059 }
|
|
|
4060
|
|
|
4061
|
|
502
|
4062 #if (NGX_HTTP_CACHE)
|
|
|
4063
|
|
|
4064 ngx_int_t
|
|
|
4065 ngx_http_upstream_cache_status(ngx_http_request_t *r,
|
|
|
4066 ngx_http_variable_value_t *v, uintptr_t data)
|
|
|
4067 {
|
|
|
4068 ngx_uint_t n;
|
|
|
4069
|
|
|
4070 if (r->upstream == NULL || r->upstream->cache_status == 0) {
|
|
|
4071 v->not_found = 1;
|
|
|
4072 return NGX_OK;
|
|
|
4073 }
|
|
|
4074
|
|
|
4075 n = r->upstream->cache_status - 1;
|
|
|
4076
|
|
|
4077 v->valid = 1;
|
|
|
4078 v->no_cacheable = 0;
|
|
|
4079 v->not_found = 0;
|
|
|
4080 v->len = ngx_http_cache_status[n].len;
|
|
|
4081 v->data = ngx_http_cache_status[n].data;
|
|
|
4082
|
|
|
4083 return NGX_OK;
|
|
|
4084 }
|
|
|
4085
|
|
|
4086 #endif
|
|
|
4087
|
|
|
4088
|
|
200
|
4089 static char *
|
|
|
4090 ngx_http_upstream(ngx_conf_t *cf, ngx_command_t *cmd, void *dummy)
|
|
|
4091 {
|
|
260
|
4092 char *rv;
|
|
|
4093 void *mconf;
|
|
|
4094 ngx_str_t *value;
|
|
|
4095 ngx_url_t u;
|
|
|
4096 ngx_uint_t m;
|
|
|
4097 ngx_conf_t pcf;
|
|
|
4098 ngx_http_module_t *module;
|
|
|
4099 ngx_http_conf_ctx_t *ctx, *http_ctx;
|
|
|
4100 ngx_http_upstream_srv_conf_t *uscf;
|
|
|
4101
|
|
|
4102 ngx_memzero(&u, sizeof(ngx_url_t));
|
|
|
4103
|
|
|
4104 value = cf->args->elts;
|
|
|
4105 u.host = value[1];
|
|
|
4106 u.no_resolve = 1;
|
|
|
4107
|
|
|
4108 uscf = ngx_http_upstream_add(cf, &u, NGX_HTTP_UPSTREAM_CREATE
|
|
|
4109 |NGX_HTTP_UPSTREAM_WEIGHT
|
|
|
4110 |NGX_HTTP_UPSTREAM_MAX_FAILS
|
|
|
4111 |NGX_HTTP_UPSTREAM_FAIL_TIMEOUT
|
|
|
4112 |NGX_HTTP_UPSTREAM_DOWN
|
|
|
4113 |NGX_HTTP_UPSTREAM_BACKUP);
|
|
|
4114 if (uscf == NULL) {
|
|
|
4115 return NGX_CONF_ERROR;
|
|
|
4116 }
|
|
|
4117
|
|
200
|
4118
|
|
|
4119 ctx = ngx_pcalloc(cf->pool, sizeof(ngx_http_conf_ctx_t));
|
|
|
4120 if (ctx == NULL) {
|
|
|
4121 return NGX_CONF_ERROR;
|
|
|
4122 }
|
|
|
4123
|
|
260
|
4124 http_ctx = cf->ctx;
|
|
|
4125 ctx->main_conf = http_ctx->main_conf;
|
|
200
|
4126
|
|
|
4127 /* the upstream{}'s srv_conf */
|
|
|
4128
|
|
|
4129 ctx->srv_conf = ngx_pcalloc(cf->pool, sizeof(void *) * ngx_http_max_module);
|
|
|
4130 if (ctx->srv_conf == NULL) {
|
|
|
4131 return NGX_CONF_ERROR;
|
|
|
4132 }
|
|
|
4133
|
|
|
4134 ctx->srv_conf[ngx_http_upstream_module.ctx_index] = uscf;
|
|
|
4135
|
|
260
|
4136 uscf->srv_conf = ctx->srv_conf;
|
|
|
4137
|
|
200
|
4138
|
|
|
4139 /* the upstream{}'s loc_conf */
|
|
|
4140
|
|
|
4141 ctx->loc_conf = ngx_pcalloc(cf->pool, sizeof(void *) * ngx_http_max_module);
|
|
|
4142 if (ctx->loc_conf == NULL) {
|
|
|
4143 return NGX_CONF_ERROR;
|
|
|
4144 }
|
|
|
4145
|
|
|
4146 for (m = 0; ngx_modules[m]; m++) {
|
|
|
4147 if (ngx_modules[m]->type != NGX_HTTP_MODULE) {
|
|
|
4148 continue;
|
|
|
4149 }
|
|
|
4150
|
|
|
4151 module = ngx_modules[m]->ctx;
|
|
|
4152
|
|
260
|
4153 if (module->create_srv_conf) {
|
|
|
4154 mconf = module->create_srv_conf(cf);
|
|
|
4155 if (mconf == NULL) {
|
|
|
4156 return NGX_CONF_ERROR;
|
|
|
4157 }
|
|
|
4158
|
|
|
4159 ctx->srv_conf[ngx_modules[m]->ctx_index] = mconf;
|
|
|
4160 }
|
|
|
4161
|
|
200
|
4162 if (module->create_loc_conf) {
|
|
|
4163 mconf = module->create_loc_conf(cf);
|
|
|
4164 if (mconf == NULL) {
|
|
|
4165 return NGX_CONF_ERROR;
|
|
|
4166 }
|
|
|
4167
|
|
|
4168 ctx->loc_conf[ngx_modules[m]->ctx_index] = mconf;
|
|
|
4169 }
|
|
|
4170 }
|
|
|
4171
|
|
|
4172
|
|
|
4173 /* parse inside upstream{} */
|
|
|
4174
|
|
|
4175 pcf = *cf;
|
|
|
4176 cf->ctx = ctx;
|
|
|
4177 cf->cmd_type = NGX_HTTP_UPS_CONF;
|
|
|
4178
|
|
|
4179 rv = ngx_conf_parse(cf, NULL);
|
|
|
4180
|
|
|
4181 *cf = pcf;
|
|
|
4182
|
|
|
4183 if (rv != NGX_CONF_OK) {
|
|
|
4184 return rv;
|
|
|
4185 }
|
|
|
4186
|
|
|
4187 if (uscf->servers == NULL) {
|
|
|
4188 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
|
4189 "no servers are inside upstream");
|
|
|
4190 return NGX_CONF_ERROR;
|
|
|
4191 }
|
|
|
4192
|
|
|
4193 return rv;
|
|
|
4194 }
|
|
|
4195
|
|
|
4196
|
|
|
4197 static char *
|
|
|
4198 ngx_http_upstream_server(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
|
|
|
4199 {
|
|
|
4200 ngx_http_upstream_srv_conf_t *uscf = conf;
|
|
|
4201
|
|
260
|
4202 time_t fail_timeout;
|
|
|
4203 ngx_str_t *value, s;
|
|
|
4204 ngx_url_t u;
|
|
|
4205 ngx_int_t weight, max_fails;
|
|
|
4206 ngx_uint_t i;
|
|
|
4207 ngx_http_upstream_server_t *us;
|
|
200
|
4208
|
|
|
4209 if (uscf->servers == NULL) {
|
|
260
|
4210 uscf->servers = ngx_array_create(cf->pool, 4,
|
|
|
4211 sizeof(ngx_http_upstream_server_t));
|
|
200
|
4212 if (uscf->servers == NULL) {
|
|
|
4213 return NGX_CONF_ERROR;
|
|
|
4214 }
|
|
|
4215 }
|
|
|
4216
|
|
260
|
4217 us = ngx_array_push(uscf->servers);
|
|
|
4218 if (us == NULL) {
|
|
200
|
4219 return NGX_CONF_ERROR;
|
|
|
4220 }
|
|
|
4221
|
|
260
|
4222 ngx_memzero(us, sizeof(ngx_http_upstream_server_t));
|
|
|
4223
|
|
200
|
4224 value = cf->args->elts;
|
|
|
4225
|
|
|
4226 ngx_memzero(&u, sizeof(ngx_url_t));
|
|
|
4227
|
|
|
4228 u.url = value[1];
|
|
266
|
4229 u.default_port = 80;
|
|
200
|
4230
|
|
340
|
4231 if (ngx_parse_url(cf->pool, &u) != NGX_OK) {
|
|
200
|
4232 if (u.err) {
|
|
|
4233 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
|
4234 "%s in upstream \"%V\"", u.err, &u.url);
|
|
|
4235 }
|
|
|
4236
|
|
|
4237 return NGX_CONF_ERROR;
|
|
|
4238 }
|
|
|
4239
|
|
212
|
4240 weight = 1;
|
|
260
|
4241 max_fails = 1;
|
|
|
4242 fail_timeout = 10;
|
|
|
4243
|
|
|
4244 for (i = 2; i < cf->args->nelts; i++) {
|
|
|
4245
|
|
|
4246 if (ngx_strncmp(value[i].data, "weight=", 7) == 0) {
|
|
|
4247
|
|
|
4248 if (!(uscf->flags & NGX_HTTP_UPSTREAM_WEIGHT)) {
|
|
|
4249 goto invalid;
|
|
|
4250 }
|
|
|
4251
|
|
|
4252 weight = ngx_atoi(&value[i].data[7], value[i].len - 7);
|
|
212
|
4253
|
|
|
4254 if (weight == NGX_ERROR || weight == 0) {
|
|
|
4255 goto invalid;
|
|
|
4256 }
|
|
|
4257
|
|
260
|
4258 continue;
|
|
|
4259 }
|
|
|
4260
|
|
|
4261 if (ngx_strncmp(value[i].data, "max_fails=", 10) == 0) {
|
|
|
4262
|
|
|
4263 if (!(uscf->flags & NGX_HTTP_UPSTREAM_MAX_FAILS)) {
|
|
|
4264 goto invalid;
|
|
|
4265 }
|
|
|
4266
|
|
|
4267 max_fails = ngx_atoi(&value[i].data[10], value[i].len - 10);
|
|
|
4268
|
|
|
4269 if (max_fails == NGX_ERROR) {
|
|
|
4270 goto invalid;
|
|
|
4271 }
|
|
|
4272
|
|
|
4273 continue;
|
|
212
|
4274 }
|
|
260
|
4275
|
|
|
4276 if (ngx_strncmp(value[i].data, "fail_timeout=", 13) == 0) {
|
|
|
4277
|
|
|
4278 if (!(uscf->flags & NGX_HTTP_UPSTREAM_FAIL_TIMEOUT)) {
|
|
|
4279 goto invalid;
|
|
|
4280 }
|
|
|
4281
|
|
|
4282 s.len = value[i].len - 13;
|
|
|
4283 s.data = &value[i].data[13];
|
|
|
4284
|
|
|
4285 fail_timeout = ngx_parse_time(&s, 1);
|
|
|
4286
|
|
662
|
4287 if (fail_timeout == (time_t) NGX_ERROR) {
|
|
260
|
4288 goto invalid;
|
|
|
4289 }
|
|
|
4290
|
|
|
4291 continue;
|
|
|
4292 }
|
|
|
4293
|
|
326
|
4294 if (ngx_strncmp(value[i].data, "backup", 6) == 0) {
|
|
|
4295
|
|
|
4296 if (!(uscf->flags & NGX_HTTP_UPSTREAM_BACKUP)) {
|
|
|
4297 goto invalid;
|
|
|
4298 }
|
|
|
4299
|
|
|
4300 us->backup = 1;
|
|
|
4301
|
|
|
4302 continue;
|
|
|
4303 }
|
|
|
4304
|
|
260
|
4305 if (ngx_strncmp(value[i].data, "down", 4) == 0) {
|
|
|
4306
|
|
|
4307 if (!(uscf->flags & NGX_HTTP_UPSTREAM_DOWN)) {
|
|
|
4308 goto invalid;
|
|
|
4309 }
|
|
|
4310
|
|
|
4311 us->down = 1;
|
|
|
4312
|
|
|
4313 continue;
|
|
|
4314 }
|
|
|
4315
|
|
|
4316 goto invalid;
|
|
212
|
4317 }
|
|
|
4318
|
|
260
|
4319 us->addrs = u.addrs;
|
|
|
4320 us->naddrs = u.naddrs;
|
|
|
4321 us->weight = weight;
|
|
|
4322 us->max_fails = max_fails;
|
|
|
4323 us->fail_timeout = fail_timeout;
|
|
200
|
4324
|
|
|
4325 return NGX_CONF_OK;
|
|
212
|
4326
|
|
|
4327 invalid:
|
|
|
4328
|
|
260
|
4329 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
|
4330 "invalid parameter \"%V\"", &value[i]);
|
|
212
|
4331
|
|
|
4332 return NGX_CONF_ERROR;
|
|
200
|
4333 }
|
|
|
4334
|
|
|
4335
|
|
|
4336 ngx_http_upstream_srv_conf_t *
|
|
260
|
4337 ngx_http_upstream_add(ngx_conf_t *cf, ngx_url_t *u, ngx_uint_t flags)
|
|
200
|
4338 {
|
|
|
4339 ngx_uint_t i;
|
|
260
|
4340 ngx_http_upstream_server_t *us;
|
|
200
|
4341 ngx_http_upstream_srv_conf_t *uscf, **uscfp;
|
|
|
4342 ngx_http_upstream_main_conf_t *umcf;
|
|
|
4343
|
|
260
|
4344 if (!(flags & NGX_HTTP_UPSTREAM_CREATE)) {
|
|
|
4345
|
|
340
|
4346 if (ngx_parse_url(cf->pool, u) != NGX_OK) {
|
|
200
|
4347 if (u->err) {
|
|
|
4348 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
|
4349 "%s in upstream \"%V\"", u->err, &u->url);
|
|
|
4350 }
|
|
|
4351
|
|
|
4352 return NULL;
|
|
|
4353 }
|
|
|
4354 }
|
|
|
4355
|
|
|
4356 umcf = ngx_http_conf_get_module_main_conf(cf, ngx_http_upstream_module);
|
|
|
4357
|
|
|
4358 uscfp = umcf->upstreams.elts;
|
|
|
4359
|
|
|
4360 for (i = 0; i < umcf->upstreams.nelts; i++) {
|
|
266
|
4361
|
|
|
4362 if (uscfp[i]->host.len != u->host.len
|
|
260
|
4363 || ngx_strncasecmp(uscfp[i]->host.data, u->host.data, u->host.len)
|
|
|
4364 != 0)
|
|
|
4365 {
|
|
200
|
4366 continue;
|
|
|
4367 }
|
|
|
4368
|
|
260
|
4369 if ((flags & NGX_HTTP_UPSTREAM_CREATE)
|
|
|
4370 && (uscfp[i]->flags & NGX_HTTP_UPSTREAM_CREATE))
|
|
200
|
4371 {
|
|
260
|
4372 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
|
4373 "duplicate upstream \"%V\"", &u->host);
|
|
|
4374 return NULL;
|
|
200
|
4375 }
|
|
260
|
4376
|
|
266
|
4377 if ((uscfp[i]->flags & NGX_HTTP_UPSTREAM_CREATE) && u->port) {
|
|
260
|
4378 ngx_conf_log_error(NGX_LOG_WARN, cf, 0,
|
|
266
|
4379 "upstream \"%V\" may not have port %d",
|
|
|
4380 &u->host, u->port);
|
|
|
4381 return NULL;
|
|
|
4382 }
|
|
|
4383
|
|
|
4384 if ((flags & NGX_HTTP_UPSTREAM_CREATE) && uscfp[i]->port) {
|
|
|
4385 ngx_log_error(NGX_LOG_WARN, cf->log, 0,
|
|
|
4386 "upstream \"%V\" may not have port %d in %s:%ui",
|
|
|
4387 &u->host, uscfp[i]->port,
|
|
336
|
4388 uscfp[i]->file_name, uscfp[i]->line);
|
|
266
|
4389 return NULL;
|
|
|
4390 }
|
|
|
4391
|
|
|
4392 if (uscfp[i]->port != u->port) {
|
|
|
4393 continue;
|
|
260
|
4394 }
|
|
|
4395
|
|
324
|
4396 if (uscfp[i]->default_port && u->default_port
|
|
|
4397 && uscfp[i]->default_port != u->default_port)
|
|
|
4398 {
|
|
|
4399 continue;
|
|
|
4400 }
|
|
|
4401
|
|
642
|
4402 if (flags & NGX_HTTP_UPSTREAM_CREATE) {
|
|
|
4403 uscfp[i]->flags = flags;
|
|
|
4404 }
|
|
|
4405
|
|
260
|
4406 return uscfp[i];
|
|
200
|
4407 }
|
|
|
4408
|
|
|
4409 uscf = ngx_pcalloc(cf->pool, sizeof(ngx_http_upstream_srv_conf_t));
|
|
|
4410 if (uscf == NULL) {
|
|
|
4411 return NULL;
|
|
|
4412 }
|
|
|
4413
|
|
260
|
4414 uscf->flags = flags;
|
|
200
|
4415 uscf->host = u->host;
|
|
336
|
4416 uscf->file_name = cf->conf_file->file.name.data;
|
|
200
|
4417 uscf->line = cf->conf_file->line;
|
|
266
|
4418 uscf->port = u->port;
|
|
|
4419 uscf->default_port = u->default_port;
|
|
260
|
4420
|
|
|
4421 if (u->naddrs == 1) {
|
|
|
4422 uscf->servers = ngx_array_create(cf->pool, 1,
|
|
|
4423 sizeof(ngx_http_upstream_server_t));
|
|
|
4424 if (uscf->servers == NULL) {
|
|
|
4425 return NGX_CONF_ERROR;
|
|
|
4426 }
|
|
|
4427
|
|
|
4428 us = ngx_array_push(uscf->servers);
|
|
|
4429 if (us == NULL) {
|
|
|
4430 return NGX_CONF_ERROR;
|
|
|
4431 }
|
|
|
4432
|
|
|
4433 ngx_memzero(us, sizeof(ngx_http_upstream_server_t));
|
|
|
4434
|
|
|
4435 us->addrs = u->addrs;
|
|
|
4436 us->naddrs = u->naddrs;
|
|
|
4437 }
|
|
200
|
4438
|
|
|
4439 uscfp = ngx_array_push(&umcf->upstreams);
|
|
|
4440 if (uscfp == NULL) {
|
|
|
4441 return NULL;
|
|
|
4442 }
|
|
|
4443
|
|
|
4444 *uscfp = uscf;
|
|
|
4445
|
|
|
4446 return uscf;
|
|
|
4447 }
|
|
|
4448
|
|
|
4449
|
|
540
|
4450 char *
|
|
558
|
4451 ngx_http_upstream_bind_set_slot(ngx_conf_t *cf, ngx_command_t *cmd,
|
|
540
|
4452 void *conf)
|
|
|
4453 {
|
|
|
4454 char *p = conf;
|
|
|
4455
|
|
|
4456 ngx_int_t rc;
|
|
|
4457 ngx_str_t *value;
|
|
|
4458 ngx_addr_t **paddr;
|
|
|
4459
|
|
|
4460 paddr = (ngx_addr_t **) (p + cmd->offset);
|
|
|
4461
|
|
|
4462 *paddr = ngx_palloc(cf->pool, sizeof(ngx_addr_t));
|
|
|
4463 if (*paddr == NULL) {
|
|
|
4464 return NGX_CONF_ERROR;
|
|
|
4465 }
|
|
|
4466
|
|
|
4467 value = cf->args->elts;
|
|
|
4468
|
|
|
4469 rc = ngx_parse_addr(cf->pool, *paddr, value[1].data, value[1].len);
|
|
|
4470
|
|
|
4471 switch (rc) {
|
|
|
4472 case NGX_OK:
|
|
|
4473 (*paddr)->name = value[1];
|
|
|
4474 return NGX_CONF_OK;
|
|
|
4475
|
|
|
4476 case NGX_DECLINED:
|
|
|
4477 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
|
4478 "invalid address \"%V\"", &value[1]);
|
|
668
|
4479 /* fall through */
|
|
|
4480
|
|
540
|
4481 default:
|
|
|
4482 return NGX_CONF_ERROR;
|
|
|
4483 }
|
|
|
4484 }
|
|
|
4485
|
|
|
4486
|
|
654
|
4487 char *
|
|
|
4488 ngx_http_upstream_param_set_slot(ngx_conf_t *cf, ngx_command_t *cmd,
|
|
|
4489 void *conf)
|
|
|
4490 {
|
|
|
4491 char *p = conf;
|
|
|
4492
|
|
|
4493 ngx_str_t *value;
|
|
|
4494 ngx_array_t **a;
|
|
|
4495 ngx_http_upstream_param_t *param;
|
|
|
4496
|
|
|
4497 a = (ngx_array_t **) (p + cmd->offset);
|
|
|
4498
|
|
|
4499 if (*a == NULL) {
|
|
|
4500 *a = ngx_array_create(cf->pool, 4, sizeof(ngx_http_upstream_param_t));
|
|
|
4501 if (*a == NULL) {
|
|
|
4502 return NGX_CONF_ERROR;
|
|
|
4503 }
|
|
|
4504 }
|
|
|
4505
|
|
|
4506 param = ngx_array_push(*a);
|
|
|
4507 if (param == NULL) {
|
|
|
4508 return NGX_CONF_ERROR;
|
|
|
4509 }
|
|
|
4510
|
|
|
4511 value = cf->args->elts;
|
|
|
4512
|
|
|
4513 param->key = value[1];
|
|
|
4514 param->value = value[2];
|
|
|
4515 param->skip_empty = 0;
|
|
|
4516
|
|
|
4517 if (cf->args->nelts == 4) {
|
|
|
4518 if (ngx_strcmp(value[3].data, "if_not_empty") != 0) {
|
|
|
4519 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
|
4520 "invalid parameter \"%V\"", &value[3]);
|
|
|
4521 return NGX_CONF_ERROR;
|
|
|
4522 }
|
|
|
4523
|
|
|
4524 param->skip_empty = 1;
|
|
|
4525 }
|
|
|
4526
|
|
|
4527 return NGX_CONF_OK;
|
|
|
4528 }
|
|
|
4529
|
|
|
4530
|
|
356
|
4531 ngx_int_t
|
|
|
4532 ngx_http_upstream_hide_headers_hash(ngx_conf_t *cf,
|
|
|
4533 ngx_http_upstream_conf_t *conf, ngx_http_upstream_conf_t *prev,
|
|
|
4534 ngx_str_t *default_hide_headers, ngx_hash_init_t *hash)
|
|
|
4535 {
|
|
|
4536 ngx_str_t *h;
|
|
|
4537 ngx_uint_t i, j;
|
|
|
4538 ngx_array_t hide_headers;
|
|
|
4539 ngx_hash_key_t *hk;
|
|
|
4540
|
|
|
4541 if (conf->hide_headers == NGX_CONF_UNSET_PTR
|
|
|
4542 && conf->pass_headers == NGX_CONF_UNSET_PTR)
|
|
|
4543 {
|
|
|
4544 conf->hide_headers_hash = prev->hide_headers_hash;
|
|
|
4545
|
|
498
|
4546 if (conf->hide_headers_hash.buckets
|
|
502
|
4547 #if (NGX_HTTP_CACHE)
|
|
|
4548 && ((conf->cache == NULL) == (prev->cache == NULL))
|
|
|
4549 #endif
|
|
|
4550 )
|
|
498
|
4551 {
|
|
356
|
4552 return NGX_OK;
|
|
|
4553 }
|
|
|
4554
|
|
|
4555 conf->hide_headers = prev->hide_headers;
|
|
|
4556 conf->pass_headers = prev->pass_headers;
|
|
|
4557
|
|
|
4558 } else {
|
|
|
4559 if (conf->hide_headers == NGX_CONF_UNSET_PTR) {
|
|
|
4560 conf->hide_headers = prev->hide_headers;
|
|
|
4561 }
|
|
|
4562
|
|
|
4563 if (conf->pass_headers == NGX_CONF_UNSET_PTR) {
|
|
|
4564 conf->pass_headers = prev->pass_headers;
|
|
|
4565 }
|
|
|
4566 }
|
|
|
4567
|
|
|
4568 if (ngx_array_init(&hide_headers, cf->temp_pool, 4, sizeof(ngx_hash_key_t))
|
|
|
4569 != NGX_OK)
|
|
|
4570 {
|
|
|
4571 return NGX_ERROR;
|
|
|
4572 }
|
|
|
4573
|
|
|
4574 for (h = default_hide_headers; h->len; h++) {
|
|
|
4575 hk = ngx_array_push(&hide_headers);
|
|
|
4576 if (hk == NULL) {
|
|
|
4577 return NGX_ERROR;
|
|
|
4578 }
|
|
|
4579
|
|
|
4580 hk->key = *h;
|
|
|
4581 hk->key_hash = ngx_hash_key_lc(h->data, h->len);
|
|
|
4582 hk->value = (void *) 1;
|
|
|
4583 }
|
|
|
4584
|
|
|
4585 if (conf->hide_headers != NGX_CONF_UNSET_PTR) {
|
|
|
4586
|
|
|
4587 h = conf->hide_headers->elts;
|
|
|
4588
|
|
|
4589 for (i = 0; i < conf->hide_headers->nelts; i++) {
|
|
|
4590
|
|
|
4591 hk = hide_headers.elts;
|
|
|
4592
|
|
|
4593 for (j = 0; j < hide_headers.nelts; j++) {
|
|
|
4594 if (ngx_strcasecmp(h[i].data, hk[j].key.data) == 0) {
|
|
|
4595 goto exist;
|
|
|
4596 }
|
|
|
4597 }
|
|
|
4598
|
|
|
4599 hk = ngx_array_push(&hide_headers);
|
|
|
4600 if (hk == NULL) {
|
|
|
4601 return NGX_ERROR;
|
|
|
4602 }
|
|
|
4603
|
|
|
4604 hk->key = h[i];
|
|
|
4605 hk->key_hash = ngx_hash_key_lc(h[i].data, h[i].len);
|
|
|
4606 hk->value = (void *) 1;
|
|
|
4607
|
|
|
4608 exist:
|
|
|
4609
|
|
|
4610 continue;
|
|
|
4611 }
|
|
|
4612 }
|
|
|
4613
|
|
|
4614 if (conf->pass_headers != NGX_CONF_UNSET_PTR) {
|
|
|
4615
|
|
|
4616 h = conf->pass_headers->elts;
|
|
|
4617 hk = hide_headers.elts;
|
|
|
4618
|
|
|
4619 for (i = 0; i < conf->pass_headers->nelts; i++) {
|
|
|
4620 for (j = 0; j < hide_headers.nelts; j++) {
|
|
|
4621
|
|
|
4622 if (hk[j].key.data == NULL) {
|
|
|
4623 continue;
|
|
|
4624 }
|
|
|
4625
|
|
|
4626 if (ngx_strcasecmp(h[i].data, hk[j].key.data) == 0) {
|
|
|
4627 hk[j].key.data = NULL;
|
|
|
4628 break;
|
|
|
4629 }
|
|
|
4630 }
|
|
|
4631 }
|
|
|
4632 }
|
|
|
4633
|
|
|
4634 hash->hash = &conf->hide_headers_hash;
|
|
|
4635 hash->key = ngx_hash_key_lc;
|
|
|
4636 hash->pool = cf->pool;
|
|
|
4637 hash->temp_pool = NULL;
|
|
|
4638
|
|
|
4639 return ngx_hash_init(hash, hide_headers.elts, hide_headers.nelts);
|
|
|
4640 }
|
|
|
4641
|
|
|
4642
|
|
58
|
4643 static void *
|
|
|
4644 ngx_http_upstream_create_main_conf(ngx_conf_t *cf)
|
|
|
4645 {
|
|
|
4646 ngx_http_upstream_main_conf_t *umcf;
|
|
|
4647
|
|
|
4648 umcf = ngx_pcalloc(cf->pool, sizeof(ngx_http_upstream_main_conf_t));
|
|
|
4649 if (umcf == NULL) {
|
|
|
4650 return NULL;
|
|
|
4651 }
|
|
|
4652
|
|
200
|
4653 if (ngx_array_init(&umcf->upstreams, cf->pool, 4,
|
|
|
4654 sizeof(ngx_http_upstream_srv_conf_t *))
|
|
|
4655 != NGX_OK)
|
|
|
4656 {
|
|
496
|
4657 return NULL;
|
|
200
|
4658 }
|
|
|
4659
|
|
58
|
4660 return umcf;
|
|
|
4661 }
|
|
|
4662
|
|
|
4663
|
|
|
4664 static char *
|
|
200
|
4665 ngx_http_upstream_init_main_conf(ngx_conf_t *cf, void *conf)
|
|
58
|
4666 {
|
|
|
4667 ngx_http_upstream_main_conf_t *umcf = conf;
|
|
|
4668
|
|
200
|
4669 ngx_uint_t i;
|
|
|
4670 ngx_array_t headers_in;
|
|
|
4671 ngx_hash_key_t *hk;
|
|
|
4672 ngx_hash_init_t hash;
|
|
260
|
4673 ngx_http_upstream_init_pt init;
|
|
200
|
4674 ngx_http_upstream_header_t *header;
|
|
|
4675 ngx_http_upstream_srv_conf_t **uscfp;
|
|
|
4676
|
|
|
4677 uscfp = umcf->upstreams.elts;
|
|
|
4678
|
|
|
4679 for (i = 0; i < umcf->upstreams.nelts; i++) {
|
|
260
|
4680
|
|
|
4681 init = uscfp[i]->peer.init_upstream ? uscfp[i]->peer.init_upstream:
|
|
|
4682 ngx_http_upstream_init_round_robin;
|
|
|
4683
|
|
|
4684 if (init(cf, uscfp[i]) != NGX_OK) {
|
|
200
|
4685 return NGX_CONF_ERROR;
|
|
|
4686 }
|
|
|
4687 }
|
|
198
|
4688
|
|
212
|
4689
|
|
260
|
4690 /* upstream_headers_in_hash */
|
|
|
4691
|
|
198
|
4692 if (ngx_array_init(&headers_in, cf->temp_pool, 32, sizeof(ngx_hash_key_t))
|
|
|
4693 != NGX_OK)
|
|
58
|
4694 {
|
|
|
4695 return NGX_CONF_ERROR;
|
|
|
4696 }
|
|
|
4697
|
|
198
|
4698 for (header = ngx_http_upstream_headers_in; header->name.len; header++) {
|
|
|
4699 hk = ngx_array_push(&headers_in);
|
|
|
4700 if (hk == NULL) {
|
|
|
4701 return NGX_CONF_ERROR;
|
|
|
4702 }
|
|
|
4703
|
|
|
4704 hk->key = header->name;
|
|
|
4705 hk->key_hash = ngx_hash_key_lc(header->name.data, header->name.len);
|
|
|
4706 hk->value = header;
|
|
|
4707 }
|
|
|
4708
|
|
|
4709 hash.hash = &umcf->headers_in_hash;
|
|
|
4710 hash.key = ngx_hash_key_lc;
|
|
|
4711 hash.max_size = 512;
|
|
244
|
4712 hash.bucket_size = ngx_align(64, ngx_cacheline_size);
|
|
198
|
4713 hash.name = "upstream_headers_in_hash";
|
|
|
4714 hash.pool = cf->pool;
|
|
|
4715 hash.temp_pool = NULL;
|
|
|
4716
|
|
|
4717 if (ngx_hash_init(&hash, headers_in.elts, headers_in.nelts) != NGX_OK) {
|
|
|
4718 return NGX_CONF_ERROR;
|
|
|
4719 }
|
|
58
|
4720
|
|
|
4721 return NGX_CONF_OK;
|
|
|
4722 }
|
