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0
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1
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2 /*
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3 * Copyright (C) Igor Sysoev
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4 */
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5
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6
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7 #include <ngx_config.h>
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8 #include <ngx_core.h>
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9 #include <ngx_http.h>
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10
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11
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12 static void ngx_http_init_request(ngx_event_t *ev);
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13 static void ngx_http_process_request_line(ngx_event_t *rev);
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14 static void ngx_http_process_request_headers(ngx_event_t *rev);
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15 static ssize_t ngx_http_read_request_header(ngx_http_request_t *r);
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16 static ngx_int_t ngx_http_alloc_large_header_buffer(ngx_http_request_t *r,
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50
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17 ngx_uint_t request_line);
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58
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18
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19 static ngx_int_t ngx_http_process_header_line(ngx_http_request_t *r,
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20 ngx_table_elt_t *h, ngx_uint_t offset);
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72
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21 static ngx_int_t ngx_http_process_unique_header_line(ngx_http_request_t *r,
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22 ngx_table_elt_t *h, ngx_uint_t offset);
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376
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23 static ngx_int_t ngx_http_process_host(ngx_http_request_t *r,
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24 ngx_table_elt_t *h, ngx_uint_t offset);
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336
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25 static ngx_int_t ngx_http_process_connection(ngx_http_request_t *r,
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26 ngx_table_elt_t *h, ngx_uint_t offset);
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376
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27 static ngx_int_t ngx_http_process_user_agent(ngx_http_request_t *r,
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28 ngx_table_elt_t *h, ngx_uint_t offset);
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58
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29 static ngx_int_t ngx_http_process_cookie(ngx_http_request_t *r,
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30 ngx_table_elt_t *h, ngx_uint_t offset);
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31
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0
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32 static ngx_int_t ngx_http_process_request_header(ngx_http_request_t *r);
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308
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33 static void ngx_http_process_request(ngx_http_request_t *r);
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376
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34 static ssize_t ngx_http_validate_host(u_char *host, size_t len);
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35 static ngx_int_t ngx_http_find_virtual_server(ngx_http_request_t *r,
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36 u_char *host, size_t len);
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0
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37
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58
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38 static void ngx_http_request_handler(ngx_event_t *ev);
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529
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39 static void ngx_http_terminate_request(ngx_http_request_t *r, ngx_int_t rc);
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40 static void ngx_http_terminate_handler(ngx_http_request_t *r);
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41 static void ngx_http_finalize_connection(ngx_http_request_t *r);
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74
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42 static ngx_int_t ngx_http_set_write_handler(ngx_http_request_t *r);
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58
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43 static void ngx_http_writer(ngx_http_request_t *r);
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435
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44 static void ngx_http_request_finalizer(ngx_http_request_t *r);
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58
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45
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0
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46 static void ngx_http_set_keepalive(ngx_http_request_t *r);
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47 static void ngx_http_keepalive_handler(ngx_event_t *ev);
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48 static void ngx_http_set_lingering_close(ngx_http_request_t *r);
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49 static void ngx_http_lingering_close_handler(ngx_event_t *ev);
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162
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50 static ngx_int_t ngx_http_post_action(ngx_http_request_t *r);
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80
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51 static void ngx_http_close_request(ngx_http_request_t *r, ngx_int_t error);
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529
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52 static void ngx_http_free_request(ngx_http_request_t *r, ngx_int_t error);
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420
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53 static void ngx_http_log_request(ngx_http_request_t *r);
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80
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54 static void ngx_http_close_connection(ngx_connection_t *c);
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0
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55
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32
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56 static u_char *ngx_http_log_error(ngx_log_t *log, u_char *buf, size_t len);
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214
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57 static u_char *ngx_http_log_error_handler(ngx_http_request_t *r,
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58 ngx_http_request_t *sr, u_char *buf, size_t len);
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0
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59
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88
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60 #if (NGX_HTTP_SSL)
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61 static void ngx_http_ssl_handshake(ngx_event_t *rev);
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96
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62 static void ngx_http_ssl_handshake_handler(ngx_connection_t *c);
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88
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63 #endif
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64
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0
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65
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54
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66 static char *ngx_http_client_errors[] = {
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67
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68 /* NGX_HTTP_PARSE_INVALID_METHOD */
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69 "client sent invalid method",
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70
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71 /* NGX_HTTP_PARSE_INVALID_REQUEST */
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72 "client sent invalid request",
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73
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74 /* NGX_HTTP_PARSE_INVALID_09_METHOD */
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75 "client sent invalid method in HTTP/0.9 request"
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0
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76 };
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77
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78
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79 ngx_http_header_t ngx_http_headers_in[] = {
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406
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80 { ngx_string("Host"), offsetof(ngx_http_headers_in_t, host),
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81 ngx_http_process_host },
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82
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83 { ngx_string("Connection"), offsetof(ngx_http_headers_in_t, connection),
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84 ngx_http_process_connection },
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58
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85
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0
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86 { ngx_string("If-Modified-Since"),
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58
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87 offsetof(ngx_http_headers_in_t, if_modified_since),
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332
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88 ngx_http_process_unique_header_line },
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58
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89
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406
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90 { ngx_string("User-Agent"), offsetof(ngx_http_headers_in_t, user_agent),
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91 ngx_http_process_user_agent },
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58
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92
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93 { ngx_string("Referer"), offsetof(ngx_http_headers_in_t, referer),
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94 ngx_http_process_header_line },
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95
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0
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96 { ngx_string("Content-Length"),
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58
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97 offsetof(ngx_http_headers_in_t, content_length),
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72
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98 ngx_http_process_unique_header_line },
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58
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99
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28
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100 { ngx_string("Content-Type"),
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58
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101 offsetof(ngx_http_headers_in_t, content_type),
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102 ngx_http_process_header_line },
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103
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104 { ngx_string("Range"), offsetof(ngx_http_headers_in_t, range),
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105 ngx_http_process_header_line },
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106
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346
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107 { ngx_string("If-Range"),
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108 offsetof(ngx_http_headers_in_t, if_range),
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109 ngx_http_process_unique_header_line },
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110
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130
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111 { ngx_string("Transfer-Encoding"),
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112 offsetof(ngx_http_headers_in_t, transfer_encoding),
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113 ngx_http_process_header_line },
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114
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384
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115 { ngx_string("Expect"),
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116 offsetof(ngx_http_headers_in_t, expect),
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117 ngx_http_process_unique_header_line },
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118
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0
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119 #if (NGX_HTTP_GZIP)
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120 { ngx_string("Accept-Encoding"),
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58
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121 offsetof(ngx_http_headers_in_t, accept_encoding),
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122 ngx_http_process_header_line },
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123
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124 { ngx_string("Via"), offsetof(ngx_http_headers_in_t, via),
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125 ngx_http_process_header_line },
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0
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126 #endif
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127
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128 { ngx_string("Authorization"),
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58
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129 offsetof(ngx_http_headers_in_t, authorization),
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72
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130 ngx_http_process_unique_header_line },
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58
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131
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132 { ngx_string("Keep-Alive"), offsetof(ngx_http_headers_in_t, keep_alive),
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133 ngx_http_process_header_line },
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0
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134
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520
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135 #if (NGX_HTTP_PROXY || NGX_HTTP_REALIP || NGX_HTTP_GEO)
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0
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136 { ngx_string("X-Forwarded-For"),
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58
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137 offsetof(ngx_http_headers_in_t, x_forwarded_for),
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138 ngx_http_process_header_line },
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0
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139 #endif
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28
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140
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122
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141 #if (NGX_HTTP_REALIP)
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142 { ngx_string("X-Real-IP"),
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143 offsetof(ngx_http_headers_in_t, x_real_ip),
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144 ngx_http_process_header_line },
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145 #endif
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146
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38
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147 #if (NGX_HTTP_HEADERS)
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58
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148 { ngx_string("Accept"), offsetof(ngx_http_headers_in_t, accept),
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149 ngx_http_process_header_line },
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150
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38
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151 { ngx_string("Accept-Language"),
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58
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152 offsetof(ngx_http_headers_in_t, accept_language),
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153 ngx_http_process_header_line },
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38
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154 #endif
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155
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186
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156 #if (NGX_HTTP_DAV)
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157 { ngx_string("Depth"), offsetof(ngx_http_headers_in_t, depth),
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158 ngx_http_process_header_line },
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159
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160 { ngx_string("Destination"), offsetof(ngx_http_headers_in_t, destination),
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161 ngx_http_process_header_line },
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230
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162
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276
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163 { ngx_string("Overwrite"), offsetof(ngx_http_headers_in_t, overwrite),
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164 ngx_http_process_header_line },
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165
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230
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166 { ngx_string("Date"), offsetof(ngx_http_headers_in_t, date),
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167 ngx_http_process_header_line },
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186
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168 #endif
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169
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58
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170 { ngx_string("Cookie"), 0, ngx_http_process_cookie },
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171
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172 { ngx_null_string, 0, NULL }
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0
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173 };
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174
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175
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50
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176 void
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177 ngx_http_init_connection(ngx_connection_t *c)
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0
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178 {
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179 ngx_event_t *rev;
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180 ngx_http_log_ctx_t *ctx;
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181
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50
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182 ctx = ngx_palloc(c->pool, sizeof(ngx_http_log_ctx_t));
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183 if (ctx == NULL) {
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0
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184 ngx_http_close_connection(c);
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185 return;
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186 }
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187
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362
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188 ctx->connection = c;
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10
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189 ctx->request = NULL;
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214
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190 ctx->current_request = NULL;
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32
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191
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192 c->log->connection = c->number;
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193 c->log->handler = ngx_http_log_error;
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0
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194 c->log->data = ctx;
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32
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195 c->log->action = "reading client request line";
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196
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0
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197 c->log_error = NGX_ERROR_INFO;
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198
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199 rev = c->read;
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58
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200 rev->handler = ngx_http_init_request;
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118
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201 c->write->handler = ngx_http_empty_handler;
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0
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202
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116
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203 #if (NGX_STAT_STUB)
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511
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204 (void) ngx_atomic_fetch_add(ngx_stat_reading, 1);
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116
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205 #endif
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206
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0
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207 if (rev->ready) {
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208 /* the deferred accept(), rtsig, aio, iocp */
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209
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160
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210 if (ngx_use_accept_mutex) {
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112
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211 ngx_post_event(rev, &ngx_posted_events);
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0
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212 return;
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213 }
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214
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215 ngx_http_init_request(rev);
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216 return;
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217 }
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218
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219 ngx_add_timer(rev, c->listening->post_accept_timeout);
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220
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439
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221 if (ngx_handle_read_event(rev, 0) != NGX_OK) {
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116
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222 #if (NGX_STAT_STUB)
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511
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223 (void) ngx_atomic_fetch_add(ngx_stat_reading, -1);
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116
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224 #endif
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0
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225 ngx_http_close_connection(c);
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226 return;
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227 }
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228 }
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229
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230
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190
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231 static void
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232 ngx_http_init_request(ngx_event_t *rev)
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0
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233 {
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298
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234 ngx_time_t *tp;
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122
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235 ngx_uint_t i;
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236 ngx_connection_t *c;
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237 ngx_http_request_t *r;
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457
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238 struct sockaddr_in *sin;
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239 ngx_http_port_t *port;
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240 ngx_http_in_addr_t *addr;
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122
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241 ngx_http_log_ctx_t *ctx;
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457
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242 ngx_http_addr_conf_t *addr_conf;
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122
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243 ngx_http_connection_t *hc;
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244 ngx_http_core_srv_conf_t *cscf;
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245 ngx_http_core_loc_conf_t *clcf;
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246 ngx_http_core_main_conf_t *cmcf;
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457
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247 #if (NGX_HAVE_INET6)
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248 struct sockaddr_in6 *sin6;
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249 ngx_http_in6_addr_t *addr6;
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250 #endif
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0
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251
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116
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252 #if (NGX_STAT_STUB)
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511
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253 (void) ngx_atomic_fetch_add(ngx_stat_reading, -1);
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116
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254 #endif
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255
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0
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256 c = rev->data;
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257
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258 if (rev->timedout) {
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259 ngx_log_error(NGX_LOG_INFO, c->log, NGX_ETIMEDOUT, "client timed out");
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260
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261 ngx_http_close_connection(c);
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262 return;
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263 }
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264
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505
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265 c->requests++;
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266
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0
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267 hc = c->data;
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268
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116
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269 if (hc == NULL) {
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50
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270 hc = ngx_pcalloc(c->pool, sizeof(ngx_http_connection_t));
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271 if (hc == NULL) {
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0
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272 ngx_http_close_connection(c);
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273 return;
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274 }
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275 }
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276
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277 r = hc->request;
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278
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279 if (r) {
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280 ngx_memzero(r, sizeof(ngx_http_request_t));
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281
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282 r->pipeline = hc->pipeline;
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283
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284 if (hc->nbusy) {
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285 r->header_in = hc->busy[0];
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286 }
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287
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288 } else {
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50
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289 r = ngx_pcalloc(c->pool, sizeof(ngx_http_request_t));
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290 if (r == NULL) {
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0
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291 ngx_http_close_connection(c);
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292 return;
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293 }
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294
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295 hc->request = r;
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296 }
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297
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298 c->data = r;
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299 r->http_connection = hc;
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300
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301 c->sent = 0;
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302 r->signature = NGX_HTTP_MODULE;
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303
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304 /* find the server configuration for the address:port */
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305
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457
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306 port = c->listening->servers;
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307
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362
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308 r->connection = c;
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309
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457
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310 if (port->naddrs > 1) {
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0
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311
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312 /*
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457
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313 * there are several addresses on this port and one of them
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314 * is an "*:port" wildcard so getsockname() in ngx_http_server_addr()
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315 * is required to determine a server address
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0
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316 */
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317
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501
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318 if (ngx_connection_local_sockaddr(c, NULL, 0) != NGX_OK) {
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457
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319 ngx_http_close_connection(c);
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320 return;
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321 }
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322
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323 switch (c->local_sockaddr->sa_family) {
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324
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325 #if (NGX_HAVE_INET6)
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326 case AF_INET6:
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327 sin6 = (struct sockaddr_in6 *) c->local_sockaddr;
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328
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501
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329 addr6 = port->addrs;
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457
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330
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331 /* the last address is "*" */
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332
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333 for (i = 0; i < port->naddrs - 1; i++) {
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334 if (ngx_memcmp(&addr6[i].addr6, &sin6->sin6_addr, 16) == 0) {
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335 break;
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336 }
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337 }
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338
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339 addr_conf = &addr6[i].conf;
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340
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341 break;
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0
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342 #endif
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457
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343
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344 default: /* AF_INET */
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345 sin = (struct sockaddr_in *) c->local_sockaddr;
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346
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347 addr = port->addrs;
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348
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349 /* the last address is "*" */
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350
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351 for (i = 0; i < port->naddrs - 1; i++) {
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352 if (addr[i].addr == sin->sin_addr.s_addr) {
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353 break;
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354 }
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0
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355 }
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457
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356
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357 addr_conf = &addr[i].conf;
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358
|
|
|
359 break;
|
|
0
|
360 }
|
|
|
361
|
|
|
362 } else {
|
|
457
|
363
|
|
|
364 switch (c->local_sockaddr->sa_family) {
|
|
|
365
|
|
|
366 #if (NGX_HAVE_INET6)
|
|
|
367 case AF_INET6:
|
|
501
|
368 addr6 = port->addrs;
|
|
457
|
369 addr_conf = &addr6[0].conf;
|
|
|
370 break;
|
|
|
371 #endif
|
|
|
372
|
|
|
373 default: /* AF_INET */
|
|
|
374 addr = port->addrs;
|
|
|
375 addr_conf = &addr[0].conf;
|
|
|
376 break;
|
|
|
377 }
|
|
0
|
378 }
|
|
|
379
|
|
487
|
380 r->virtual_names = addr_conf->virtual_names;
|
|
|
381
|
|
0
|
382 /* the default server configuration for the address:port */
|
|
457
|
383 cscf = addr_conf->core_srv_conf;
|
|
0
|
384
|
|
|
385 r->main_conf = cscf->ctx->main_conf;
|
|
|
386 r->srv_conf = cscf->ctx->srv_conf;
|
|
|
387 r->loc_conf = cscf->ctx->loc_conf;
|
|
|
388
|
|
58
|
389 rev->handler = ngx_http_process_request_line;
|
|
520
|
390 r->read_event_handler = ngx_http_block_reading;
|
|
0
|
391
|
|
|
392 #if (NGX_HTTP_SSL)
|
|
|
393
|
|
356
|
394 {
|
|
|
395 ngx_http_ssl_srv_conf_t *sscf;
|
|
|
396
|
|
0
|
397 sscf = ngx_http_get_module_srv_conf(r, ngx_http_ssl_module);
|
|
457
|
398 if (sscf->enable || addr_conf->ssl) {
|
|
0
|
399
|
|
|
400 if (c->ssl == NULL) {
|
|
410
|
401
|
|
|
402 c->log->action = "SSL handshaking";
|
|
|
403
|
|
457
|
404 if (addr_conf->ssl && sscf->ssl.ctx == NULL) {
|
|
410
|
405 ngx_log_error(NGX_LOG_ERR, c->log, 0,
|
|
|
406 "no \"ssl_certificate\" is defined "
|
|
|
407 "in server listening on SSL port");
|
|
|
408 ngx_http_close_connection(c);
|
|
|
409 return;
|
|
|
410 }
|
|
|
411
|
|
96
|
412 if (ngx_ssl_create_connection(&sscf->ssl, c, NGX_SSL_BUFFER)
|
|
463
|
413 != NGX_OK)
|
|
0
|
414 {
|
|
|
415 ngx_http_close_connection(c);
|
|
|
416 return;
|
|
|
417 }
|
|
|
418
|
|
58
|
419 rev->handler = ngx_http_ssl_handshake;
|
|
0
|
420 }
|
|
|
421
|
|
62
|
422 r->main_filter_need_in_memory = 1;
|
|
0
|
423 }
|
|
356
|
424 }
|
|
0
|
425
|
|
|
426 #endif
|
|
|
427
|
|
|
428 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
493
|
429 c->log->file = clcf->error_log->file;
|
|
0
|
430 if (!(c->log->log_level & NGX_LOG_DEBUG_CONNECTION)) {
|
|
493
|
431 c->log->log_level = clcf->error_log->log_level;
|
|
0
|
432 }
|
|
|
433
|
|
|
434 if (c->buffer == NULL) {
|
|
|
435 c->buffer = ngx_create_temp_buf(c->pool,
|
|
|
436 cscf->client_header_buffer_size);
|
|
|
437 if (c->buffer == NULL) {
|
|
|
438 ngx_http_close_connection(c);
|
|
|
439 return;
|
|
|
440 }
|
|
|
441 }
|
|
|
442
|
|
|
443 if (r->header_in == NULL) {
|
|
|
444 r->header_in = c->buffer;
|
|
|
445 }
|
|
|
446
|
|
50
|
447 r->pool = ngx_create_pool(cscf->request_pool_size, c->log);
|
|
|
448 if (r->pool == NULL) {
|
|
0
|
449 ngx_http_close_connection(c);
|
|
|
450 return;
|
|
|
451 }
|
|
|
452
|
|
|
453
|
|
|
454 if (ngx_list_init(&r->headers_out.headers, r->pool, 20,
|
|
130
|
455 sizeof(ngx_table_elt_t))
|
|
463
|
456 != NGX_OK)
|
|
0
|
457 {
|
|
505
|
458 ngx_destroy_pool(r->pool);
|
|
|
459 ngx_http_close_connection(c);
|
|
0
|
460 return;
|
|
|
461 }
|
|
|
462
|
|
|
463 r->ctx = ngx_pcalloc(r->pool, sizeof(void *) * ngx_http_max_module);
|
|
|
464 if (r->ctx == NULL) {
|
|
505
|
465 ngx_destroy_pool(r->pool);
|
|
|
466 ngx_http_close_connection(c);
|
|
0
|
467 return;
|
|
|
468 }
|
|
|
469
|
|
122
|
470 cmcf = ngx_http_get_module_main_conf(r, ngx_http_core_module);
|
|
|
471
|
|
|
472 r->variables = ngx_pcalloc(r->pool, cmcf->variables.nelts
|
|
|
473 * sizeof(ngx_http_variable_value_t));
|
|
|
474 if (r->variables == NULL) {
|
|
505
|
475 ngx_destroy_pool(r->pool);
|
|
|
476 ngx_http_close_connection(c);
|
|
122
|
477 return;
|
|
|
478 }
|
|
|
479
|
|
0
|
480 c->single_connection = 1;
|
|
132
|
481 c->destroyed = 0;
|
|
|
482
|
|
102
|
483 r->main = r;
|
|
529
|
484 r->count = 1;
|
|
102
|
485
|
|
298
|
486 tp = ngx_timeofday();
|
|
|
487 r->start_sec = tp->sec;
|
|
|
488 r->start_msec = tp->msec;
|
|
46
|
489
|
|
180
|
490 r->method = NGX_HTTP_UNKNOWN;
|
|
|
491
|
|
0
|
492 r->headers_in.content_length_n = -1;
|
|
|
493 r->headers_in.keep_alive_n = -1;
|
|
|
494 r->headers_out.content_length_n = -1;
|
|
|
495 r->headers_out.last_modified_time = -1;
|
|
|
496
|
|
226
|
497 r->uri_changes = NGX_HTTP_MAX_URI_CHANGES + 1;
|
|
|
498 r->subrequests = NGX_HTTP_MAX_SUBREQUESTS + 1;
|
|
|
499
|
|
0
|
500 r->http_state = NGX_HTTP_READING_REQUEST_STATE;
|
|
|
501
|
|
54
|
502 ctx = c->log->data;
|
|
|
503 ctx->request = r;
|
|
214
|
504 ctx->current_request = r;
|
|
58
|
505 r->log_handler = ngx_http_log_error_handler;
|
|
54
|
506
|
|
0
|
507 #if (NGX_STAT_STUB)
|
|
511
|
508 (void) ngx_atomic_fetch_add(ngx_stat_reading, 1);
|
|
26
|
509 r->stat_reading = 1;
|
|
511
|
510 (void) ngx_atomic_fetch_add(ngx_stat_requests, 1);
|
|
0
|
511 #endif
|
|
|
512
|
|
58
|
513 rev->handler(rev);
|
|
0
|
514 }
|
|
|
515
|
|
|
516
|
|
|
517 #if (NGX_HTTP_SSL)
|
|
|
518
|
|
50
|
519 static void
|
|
|
520 ngx_http_ssl_handshake(ngx_event_t *rev)
|
|
0
|
521 {
|
|
10
|
522 u_char buf[1];
|
|
|
523 ssize_t n;
|
|
0
|
524 ngx_int_t rc;
|
|
|
525 ngx_connection_t *c;
|
|
|
526 ngx_http_request_t *r;
|
|
|
527
|
|
|
528 c = rev->data;
|
|
|
529 r = c->data;
|
|
|
530
|
|
|
531 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, rev->log, 0,
|
|
|
532 "http check ssl handshake");
|
|
|
533
|
|
|
534 if (rev->timedout) {
|
|
54
|
535 ngx_log_error(NGX_LOG_INFO, c->log, NGX_ETIMEDOUT, "client timed out");
|
|
|
536 c->timedout = 1;
|
|
|
537 ngx_http_close_request(r, NGX_HTTP_REQUEST_TIME_OUT);
|
|
0
|
538 return;
|
|
|
539 }
|
|
|
540
|
|
132
|
541 n = recv(c->fd, (char *) buf, 1, MSG_PEEK);
|
|
0
|
542
|
|
|
543 if (n == -1 && ngx_socket_errno == NGX_EAGAIN) {
|
|
364
|
544
|
|
|
545 if (!rev->timer_set) {
|
|
|
546 ngx_add_timer(rev, c->listening->post_accept_timeout);
|
|
|
547 }
|
|
|
548
|
|
439
|
549 if (ngx_handle_read_event(rev, 0) != NGX_OK) {
|
|
364
|
550 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
551 }
|
|
|
552
|
|
0
|
553 return;
|
|
|
554 }
|
|
|
555
|
|
|
556 if (n == 1) {
|
|
|
557 if (buf[0] == 0x80 /* SSLv2 */ || buf[0] == 0x16 /* SSLv3/TLSv1 */) {
|
|
|
558 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, rev->log, 0,
|
|
10
|
559 "https ssl handshake: 0x%02Xd", buf[0]);
|
|
0
|
560
|
|
|
561 rc = ngx_ssl_handshake(c);
|
|
|
562
|
|
96
|
563 if (rc == NGX_AGAIN) {
|
|
362
|
564
|
|
|
565 if (!rev->timer_set) {
|
|
|
566 ngx_add_timer(rev, c->listening->post_accept_timeout);
|
|
|
567 }
|
|
|
568
|
|
96
|
569 c->ssl->handler = ngx_http_ssl_handshake_handler;
|
|
0
|
570 return;
|
|
|
571 }
|
|
|
572
|
|
96
|
573 ngx_http_ssl_handshake_handler(c);
|
|
|
574
|
|
|
575 return;
|
|
0
|
576
|
|
|
577 } else {
|
|
|
578 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, rev->log, 0,
|
|
|
579 "plain http");
|
|
|
580
|
|
|
581 r->plain_http = 1;
|
|
|
582 }
|
|
|
583 }
|
|
|
584
|
|
410
|
585 c->log->action = "reading client request line";
|
|
|
586
|
|
58
|
587 rev->handler = ngx_http_process_request_line;
|
|
0
|
588 ngx_http_process_request_line(rev);
|
|
|
589 }
|
|
|
590
|
|
96
|
591
|
|
|
592 static void
|
|
|
593 ngx_http_ssl_handshake_handler(ngx_connection_t *c)
|
|
|
594 {
|
|
|
595 ngx_http_request_t *r;
|
|
|
596
|
|
|
597 if (c->ssl->handshaked) {
|
|
|
598
|
|
|
599 /*
|
|
|
600 * The majority of browsers do not send the "close notify" alert.
|
|
|
601 * Among them are MSIE, old Mozilla, Netscape 4, Konqueror,
|
|
|
602 * and Links. And what is more, MSIE ignores the server's alert.
|
|
|
603 *
|
|
|
604 * Opera and recent Mozilla send the alert.
|
|
|
605 */
|
|
|
606
|
|
|
607 c->ssl->no_wait_shutdown = 1;
|
|
|
608
|
|
|
609 c->read->handler = ngx_http_process_request_line;
|
|
|
610 /* STUB: epoll edge */ c->write->handler = ngx_http_empty_handler;
|
|
|
611
|
|
|
612 ngx_http_process_request_line(c->read);
|
|
|
613
|
|
|
614 return;
|
|
|
615 }
|
|
|
616
|
|
|
617 r = c->data;
|
|
|
618
|
|
|
619 ngx_http_close_request(r, NGX_HTTP_BAD_REQUEST);
|
|
|
620
|
|
|
621 return;
|
|
|
622 }
|
|
|
623
|
|
306
|
624 #ifdef SSL_CTRL_SET_TLSEXT_HOSTNAME
|
|
|
625
|
|
|
626 int
|
|
|
627 ngx_http_ssl_servername(ngx_ssl_conn_t *ssl_conn, int *ad, void *arg)
|
|
|
628 {
|
|
406
|
629 size_t len;
|
|
306
|
630 const char *servername;
|
|
|
631 ngx_connection_t *c;
|
|
|
632 ngx_http_request_t *r;
|
|
|
633 ngx_http_ssl_srv_conf_t *sscf;
|
|
|
634
|
|
|
635 servername = SSL_get_servername(ssl_conn, TLSEXT_NAMETYPE_host_name);
|
|
|
636
|
|
|
637 if (servername == NULL) {
|
|
|
638 return SSL_TLSEXT_ERR_NOACK;
|
|
|
639 }
|
|
|
640
|
|
|
641 c = ngx_ssl_get_connection(ssl_conn);
|
|
|
642
|
|
|
643 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
|
644 "SSL server name: \"%s\"", servername);
|
|
|
645
|
|
406
|
646 len = ngx_strlen(servername);
|
|
|
647
|
|
|
648 if (len == 0) {
|
|
|
649 return SSL_TLSEXT_ERR_NOACK;
|
|
|
650 }
|
|
|
651
|
|
306
|
652 r = c->data;
|
|
|
653
|
|
406
|
654 if (ngx_http_find_virtual_server(r, (u_char *) servername, len) != NGX_OK) {
|
|
306
|
655 return SSL_TLSEXT_ERR_NOACK;
|
|
|
656 }
|
|
|
657
|
|
|
658 sscf = ngx_http_get_module_srv_conf(r, ngx_http_ssl_module);
|
|
|
659
|
|
|
660 SSL_set_SSL_CTX(ssl_conn, sscf->ssl.ctx);
|
|
|
661
|
|
|
662 return SSL_TLSEXT_ERR_OK;
|
|
|
663 }
|
|
|
664
|
|
|
665 #endif
|
|
96
|
666
|
|
0
|
667 #endif
|
|
|
668
|
|
|
669
|
|
50
|
670 static void
|
|
|
671 ngx_http_process_request_line(ngx_event_t *rev)
|
|
0
|
672 {
|
|
342
|
673 ssize_t n;
|
|
|
674 ngx_int_t rc, rv;
|
|
|
675 ngx_connection_t *c;
|
|
|
676 ngx_http_request_t *r;
|
|
|
677 ngx_http_core_srv_conf_t *cscf;
|
|
0
|
678
|
|
|
679 c = rev->data;
|
|
|
680 r = c->data;
|
|
|
681
|
|
|
682 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, rev->log, 0,
|
|
|
683 "http process request line");
|
|
|
684
|
|
|
685 if (rev->timedout) {
|
|
54
|
686 ngx_log_error(NGX_LOG_INFO, c->log, NGX_ETIMEDOUT, "client timed out");
|
|
|
687 c->timedout = 1;
|
|
|
688 ngx_http_close_request(r, NGX_HTTP_REQUEST_TIME_OUT);
|
|
0
|
689 return;
|
|
|
690 }
|
|
|
691
|
|
|
692 rc = NGX_AGAIN;
|
|
|
693
|
|
|
694 for ( ;; ) {
|
|
|
695
|
|
|
696 if (rc == NGX_AGAIN) {
|
|
|
697 n = ngx_http_read_request_header(r);
|
|
|
698
|
|
|
699 if (n == NGX_AGAIN || n == NGX_ERROR) {
|
|
|
700 return;
|
|
|
701 }
|
|
|
702 }
|
|
|
703
|
|
|
704 rc = ngx_http_parse_request_line(r, r->header_in);
|
|
|
705
|
|
|
706 if (rc == NGX_OK) {
|
|
|
707
|
|
|
708 /* the request line has been parsed successfully */
|
|
|
709
|
|
10
|
710 r->request_line.len = r->request_end - r->request_start;
|
|
|
711 r->request_line.data = r->request_start;
|
|
|
712
|
|
0
|
713
|
|
|
714 if (r->args_start) {
|
|
|
715 r->uri.len = r->args_start - 1 - r->uri_start;
|
|
|
716 } else {
|
|
|
717 r->uri.len = r->uri_end - r->uri_start;
|
|
|
718 }
|
|
|
719
|
|
18
|
720
|
|
2
|
721 if (r->complex_uri || r->quoted_uri) {
|
|
10
|
722
|
|
382
|
723 r->uri.data = ngx_pnalloc(r->pool, r->uri.len + 1);
|
|
50
|
724 if (r->uri.data == NULL) {
|
|
10
|
725 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
726 return;
|
|
|
727 }
|
|
|
728
|
|
342
|
729 cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
|
|
|
730
|
|
|
731 rc = ngx_http_parse_complex_uri(r, cscf->merge_slashes);
|
|
0
|
732
|
|
54
|
733 if (rc == NGX_HTTP_PARSE_INVALID_REQUEST) {
|
|
|
734 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
|
735 "client sent invalid request");
|
|
|
736 ngx_http_finalize_request(r, NGX_HTTP_BAD_REQUEST);
|
|
0
|
737 return;
|
|
|
738 }
|
|
|
739
|
|
|
740 } else {
|
|
10
|
741 r->uri.data = r->uri_start;
|
|
0
|
742 }
|
|
|
743
|
|
18
|
744
|
|
10
|
745 r->unparsed_uri.len = r->uri_end - r->uri_start;
|
|
|
746 r->unparsed_uri.data = r->uri_start;
|
|
|
747
|
|
0
|
748
|
|
58
|
749 r->method_name.len = r->method_end - r->request_start + 1;
|
|
|
750 r->method_name.data = r->request_line.data;
|
|
0
|
751
|
|
10
|
752
|
|
28
|
753 if (r->http_protocol.data) {
|
|
|
754 r->http_protocol.len = r->request_end - r->http_protocol.data;
|
|
|
755 }
|
|
|
756
|
|
|
757
|
|
0
|
758 if (r->uri_ext) {
|
|
|
759 if (r->args_start) {
|
|
|
760 r->exten.len = r->args_start - 1 - r->uri_ext;
|
|
|
761 } else {
|
|
|
762 r->exten.len = r->uri_end - r->uri_ext;
|
|
|
763 }
|
|
|
764
|
|
10
|
765 r->exten.data = r->uri_ext;
|
|
0
|
766 }
|
|
|
767
|
|
10
|
768
|
|
0
|
769 if (r->args_start && r->uri_end > r->args_start) {
|
|
|
770 r->args.len = r->uri_end - r->args_start;
|
|
10
|
771 r->args.data = r->args_start;
|
|
0
|
772 }
|
|
|
773
|
|
518
|
774 #if (NGX_WIN32)
|
|
|
775 {
|
|
|
776 u_char *p;
|
|
|
777
|
|
|
778 p = r->uri.data + r->uri.len - 1;
|
|
|
779
|
|
|
780 if (*p == '.') {
|
|
|
781
|
|
|
782 while (--p > r->uri.data && *p == '.') { /* void */ }
|
|
|
783
|
|
|
784 r->uri.len = p + 1 - r->uri.data;
|
|
|
785
|
|
|
786 ngx_http_set_exten(r);
|
|
|
787 }
|
|
|
788 }
|
|
|
789 #endif
|
|
10
|
790
|
|
|
791 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
|
792 "http request line: \"%V\"", &r->request_line);
|
|
|
793
|
|
0
|
794 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
10
|
795 "http uri: \"%V\"", &r->uri);
|
|
0
|
796
|
|
|
797 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
10
|
798 "http args: \"%V\"", &r->args);
|
|
0
|
799
|
|
|
800 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
10
|
801 "http exten: \"%V\"", &r->exten);
|
|
|
802
|
|
376
|
803 if (r->host_start && r->host_end) {
|
|
|
804 n = ngx_http_validate_host(r->host_start,
|
|
|
805 r->host_end - r->host_start);
|
|
|
806
|
|
|
807 if (n <= 0) {
|
|
|
808 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
|
809 "client sent invalid host in request line");
|
|
|
810 ngx_http_finalize_request(r, NGX_HTTP_BAD_REQUEST);
|
|
|
811 return;
|
|
|
812 }
|
|
|
813
|
|
|
814 r->headers_in.server.len = n;
|
|
|
815 r->headers_in.server.data = r->host_start;
|
|
|
816 }
|
|
|
817
|
|
0
|
818 if (r->http_version < NGX_HTTP_VERSION_10) {
|
|
376
|
819
|
|
|
820 if (ngx_http_find_virtual_server(r, r->headers_in.server.data,
|
|
|
821 r->headers_in.server.len)
|
|
|
822 == NGX_ERROR)
|
|
|
823 {
|
|
|
824 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
825 return;
|
|
|
826 }
|
|
|
827
|
|
308
|
828 ngx_http_process_request(r);
|
|
0
|
829 return;
|
|
|
830 }
|
|
|
831
|
|
|
832
|
|
|
833 if (ngx_list_init(&r->headers_in.headers, r->pool, 20,
|
|
130
|
834 sizeof(ngx_table_elt_t))
|
|
463
|
835 != NGX_OK)
|
|
0
|
836 {
|
|
|
837 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
838 return;
|
|
|
839 }
|
|
|
840
|
|
|
841
|
|
48
|
842 if (ngx_array_init(&r->headers_in.cookies, r->pool, 2,
|
|
130
|
843 sizeof(ngx_table_elt_t *))
|
|
463
|
844 != NGX_OK)
|
|
0
|
845 {
|
|
|
846 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
847 return;
|
|
|
848 }
|
|
|
849
|
|
32
|
850 c->log->action = "reading client request headers";
|
|
0
|
851
|
|
58
|
852 rev->handler = ngx_http_process_request_headers;
|
|
0
|
853 ngx_http_process_request_headers(rev);
|
|
|
854
|
|
|
855 return;
|
|
54
|
856 }
|
|
|
857
|
|
|
858 if (rc != NGX_AGAIN) {
|
|
0
|
859
|
|
|
860 /* there was error while a request line parsing */
|
|
|
861
|
|
54
|
862 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
|
863 ngx_http_client_errors[rc - NGX_HTTP_CLIENT_ERROR]);
|
|
|
864 ngx_http_finalize_request(r, NGX_HTTP_BAD_REQUEST);
|
|
0
|
865 return;
|
|
|
866 }
|
|
|
867
|
|
|
868 /* NGX_AGAIN: a request line parsing is still incomplete */
|
|
|
869
|
|
|
870 if (r->header_in->pos == r->header_in->end) {
|
|
|
871
|
|
|
872 rv = ngx_http_alloc_large_header_buffer(r, 1);
|
|
|
873
|
|
|
874 if (rv == NGX_ERROR) {
|
|
|
875 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
876 return;
|
|
|
877 }
|
|
|
878
|
|
|
879 if (rv == NGX_DECLINED) {
|
|
54
|
880 r->request_line.len = r->header_in->end - r->request_start;
|
|
|
881 r->request_line.data = r->request_start;
|
|
|
882
|
|
|
883 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
|
884 "client sent too long URI");
|
|
|
885 ngx_http_finalize_request(r, NGX_HTTP_REQUEST_URI_TOO_LARGE);
|
|
0
|
886 return;
|
|
|
887 }
|
|
|
888 }
|
|
|
889 }
|
|
|
890 }
|
|
|
891
|
|
|
892
|
|
50
|
893 static void
|
|
|
894 ngx_http_process_request_headers(ngx_event_t *rev)
|
|
0
|
895 {
|
|
535
|
896 u_char *p;
|
|
|
897 size_t len;
|
|
56
|
898 ssize_t n;
|
|
|
899 ngx_int_t rc, rv;
|
|
58
|
900 ngx_table_elt_t *h;
|
|
56
|
901 ngx_connection_t *c;
|
|
|
902 ngx_http_header_t *hh;
|
|
|
903 ngx_http_request_t *r;
|
|
60
|
904 ngx_http_core_srv_conf_t *cscf;
|
|
56
|
905 ngx_http_core_main_conf_t *cmcf;
|
|
0
|
906
|
|
|
907 c = rev->data;
|
|
|
908 r = c->data;
|
|
|
909
|
|
|
910 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, rev->log, 0,
|
|
|
911 "http process request header line");
|
|
|
912
|
|
|
913 if (rev->timedout) {
|
|
54
|
914 ngx_log_error(NGX_LOG_INFO, c->log, NGX_ETIMEDOUT, "client timed out");
|
|
|
915 c->timedout = 1;
|
|
|
916 ngx_http_close_request(r, NGX_HTTP_REQUEST_TIME_OUT);
|
|
0
|
917 return;
|
|
|
918 }
|
|
|
919
|
|
56
|
920 cmcf = ngx_http_get_module_main_conf(r, ngx_http_core_module);
|
|
60
|
921 cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
|
|
56
|
922
|
|
0
|
923 rc = NGX_AGAIN;
|
|
|
924
|
|
|
925 for ( ;; ) {
|
|
|
926
|
|
|
927 if (rc == NGX_AGAIN) {
|
|
|
928
|
|
|
929 if (r->header_in->pos == r->header_in->end) {
|
|
|
930
|
|
|
931 rv = ngx_http_alloc_large_header_buffer(r, 0);
|
|
|
932
|
|
|
933 if (rv == NGX_ERROR) {
|
|
|
934 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
935 return;
|
|
|
936 }
|
|
|
937
|
|
|
938 if (rv == NGX_DECLINED) {
|
|
535
|
939 len = r->header_in->end - r->header_name_start;
|
|
|
940 p = r->header_name_start;
|
|
|
941
|
|
|
942 if (len > NGX_MAX_ERROR_STR - 300) {
|
|
|
943 len = NGX_MAX_ERROR_STR - 300;
|
|
|
944 p[len++] = '.'; p[len++] = '.'; p[len++] = '.';
|
|
80
|
945 }
|
|
|
946
|
|
54
|
947 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
535
|
948 "client sent too long header line: \"%*s\"",
|
|
|
949 len, r->header_name_start);
|
|
330
|
950 ngx_http_finalize_request(r, NGX_HTTP_BAD_REQUEST);
|
|
0
|
951 return;
|
|
|
952 }
|
|
|
953 }
|
|
|
954
|
|
|
955 n = ngx_http_read_request_header(r);
|
|
|
956
|
|
|
957 if (n == NGX_AGAIN || n == NGX_ERROR) {
|
|
|
958 return;
|
|
|
959 }
|
|
|
960 }
|
|
|
961
|
|
420
|
962 rc = ngx_http_parse_header_line(r, r->header_in,
|
|
|
963 cscf->underscores_in_headers);
|
|
0
|
964
|
|
|
965 if (rc == NGX_OK) {
|
|
|
966
|
|
60
|
967 if (r->invalid_header && cscf->ignore_invalid_headers) {
|
|
52
|
968
|
|
|
969 /* there was error while a header line parsing */
|
|
|
970
|
|
54
|
971 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
535
|
972 "client sent invalid header line: \"%*s\"",
|
|
|
973 r->header_end - r->header_name_start,
|
|
|
974 r->header_name_start);
|
|
52
|
975 continue;
|
|
|
976 }
|
|
|
977
|
|
0
|
978 /* a header line has been parsed successfully */
|
|
|
979
|
|
50
|
980 h = ngx_list_push(&r->headers_in.headers);
|
|
|
981 if (h == NULL) {
|
|
0
|
982 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
983 return;
|
|
|
984 }
|
|
|
985
|
|
56
|
986 h->hash = r->header_hash;
|
|
|
987
|
|
0
|
988 h->key.len = r->header_name_end - r->header_name_start;
|
|
|
989 h->key.data = r->header_name_start;
|
|
|
990 h->key.data[h->key.len] = '\0';
|
|
|
991
|
|
|
992 h->value.len = r->header_end - r->header_start;
|
|
|
993 h->value.data = r->header_start;
|
|
|
994 h->value.data[h->value.len] = '\0';
|
|
|
995
|
|
382
|
996 h->lowcase_key = ngx_pnalloc(r->pool, h->key.len);
|
|
198
|
997 if (h->lowcase_key == NULL) {
|
|
|
998 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
999 return;
|
|
|
1000 }
|
|
|
1001
|
|
|
1002 if (h->key.len == r->lowcase_index) {
|
|
|
1003 ngx_memcpy(h->lowcase_key, r->lowcase_header, h->key.len);
|
|
|
1004
|
|
|
1005 } else {
|
|
394
|
1006 ngx_strlow(h->lowcase_key, h->key.data, h->key.len);
|
|
0
|
1007 }
|
|
|
1008
|
|
198
|
1009 hh = ngx_hash_find(&cmcf->headers_in_hash, h->hash,
|
|
|
1010 h->lowcase_key, h->key.len);
|
|
|
1011
|
|
|
1012 if (hh && hh->handler(r, h, hh->offset) != NGX_OK) {
|
|
|
1013 return;
|
|
|
1014 }
|
|
|
1015
|
|
0
|
1016 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
10
|
1017 "http header: \"%V: %V\"",
|
|
|
1018 &h->key, &h->value);
|
|
0
|
1019
|
|
|
1020 continue;
|
|
54
|
1021 }
|
|
|
1022
|
|
|
1023 if (rc == NGX_HTTP_PARSE_HEADER_DONE) {
|
|
0
|
1024
|
|
|
1025 /* a whole header has been parsed successfully */
|
|
|
1026
|
|
|
1027 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1028 "http header done");
|
|
|
1029
|
|
24
|
1030 r->request_length += r->header_in->pos - r->header_in->start;
|
|
|
1031
|
|
0
|
1032 r->http_state = NGX_HTTP_PROCESS_REQUEST_STATE;
|
|
|
1033
|
|
|
1034 rc = ngx_http_process_request_header(r);
|
|
|
1035
|
|
|
1036 if (rc != NGX_OK) {
|
|
|
1037 return;
|
|
|
1038 }
|
|
|
1039
|
|
308
|
1040 ngx_http_process_request(r);
|
|
86
|
1041
|
|
0
|
1042 return;
|
|
54
|
1043 }
|
|
|
1044
|
|
|
1045 if (rc == NGX_AGAIN) {
|
|
|
1046
|
|
|
1047 /* a header line parsing is still not complete */
|
|
|
1048
|
|
|
1049 continue;
|
|
0
|
1050 }
|
|
|
1051
|
|
54
|
1052 /* rc == NGX_HTTP_PARSE_INVALID_HEADER: "\r" is not followed by "\n" */
|
|
|
1053
|
|
|
1054 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
535
|
1055 "client sent invalid header line: \"%*s\\r...\"",
|
|
|
1056 r->header_end - r->header_name_start,
|
|
|
1057 r->header_name_start);
|
|
330
|
1058 ngx_http_finalize_request(r, NGX_HTTP_BAD_REQUEST);
|
|
54
|
1059 return;
|
|
0
|
1060 }
|
|
|
1061 }
|
|
|
1062
|
|
|
1063
|
|
50
|
1064 static ssize_t
|
|
|
1065 ngx_http_read_request_header(ngx_http_request_t *r)
|
|
0
|
1066 {
|
|
|
1067 ssize_t n;
|
|
|
1068 ngx_event_t *rev;
|
|
230
|
1069 ngx_connection_t *c;
|
|
0
|
1070 ngx_http_core_srv_conf_t *cscf;
|
|
|
1071
|
|
230
|
1072 c = r->connection;
|
|
|
1073 rev = c->read;
|
|
0
|
1074
|
|
|
1075 n = r->header_in->last - r->header_in->pos;
|
|
|
1076
|
|
|
1077 if (n > 0) {
|
|
|
1078 return n;
|
|
|
1079 }
|
|
|
1080
|
|
72
|
1081 if (rev->ready) {
|
|
230
|
1082 n = c->recv(c, r->header_in->last,
|
|
|
1083 r->header_in->end - r->header_in->last);
|
|
72
|
1084 } else {
|
|
|
1085 n = NGX_AGAIN;
|
|
0
|
1086 }
|
|
|
1087
|
|
|
1088 if (n == NGX_AGAIN) {
|
|
364
|
1089 if (!rev->timer_set) {
|
|
0
|
1090 cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
|
|
|
1091 ngx_add_timer(rev, cscf->client_header_timeout);
|
|
|
1092 }
|
|
|
1093
|
|
439
|
1094 if (ngx_handle_read_event(rev, 0) != NGX_OK) {
|
|
0
|
1095 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
1096 return NGX_ERROR;
|
|
|
1097 }
|
|
|
1098
|
|
|
1099 return NGX_AGAIN;
|
|
|
1100 }
|
|
|
1101
|
|
|
1102 if (n == 0) {
|
|
230
|
1103 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
0
|
1104 "client closed prematurely connection");
|
|
|
1105 }
|
|
|
1106
|
|
|
1107 if (n == 0 || n == NGX_ERROR) {
|
|
272
|
1108 c->error = 1;
|
|
|
1109 c->log->action = "reading client request headers";
|
|
|
1110
|
|
|
1111 ngx_http_finalize_request(r, NGX_HTTP_BAD_REQUEST);
|
|
0
|
1112 return NGX_ERROR;
|
|
|
1113 }
|
|
|
1114
|
|
|
1115 r->header_in->last += n;
|
|
|
1116
|
|
|
1117 return n;
|
|
|
1118 }
|
|
|
1119
|
|
|
1120
|
|
50
|
1121 static ngx_int_t
|
|
|
1122 ngx_http_alloc_large_header_buffer(ngx_http_request_t *r,
|
|
|
1123 ngx_uint_t request_line)
|
|
0
|
1124 {
|
|
|
1125 u_char *old, *new;
|
|
|
1126 ngx_buf_t *b;
|
|
|
1127 ngx_http_connection_t *hc;
|
|
|
1128 ngx_http_core_srv_conf_t *cscf;
|
|
|
1129
|
|
|
1130 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1131 "http alloc large header buffer");
|
|
|
1132
|
|
|
1133 if (request_line && r->state == 0) {
|
|
|
1134
|
|
|
1135 /* the client fills up the buffer with "\r\n" */
|
|
|
1136
|
|
24
|
1137 r->request_length += r->header_in->end - r->header_in->start;
|
|
|
1138
|
|
0
|
1139 r->header_in->pos = r->header_in->start;
|
|
|
1140 r->header_in->last = r->header_in->start;
|
|
|
1141
|
|
|
1142 return NGX_OK;
|
|
|
1143 }
|
|
|
1144
|
|
|
1145 old = request_line ? r->request_start : r->header_name_start;
|
|
|
1146
|
|
|
1147 cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
|
|
|
1148
|
|
|
1149 if (r->state != 0
|
|
|
1150 && (size_t) (r->header_in->pos - old)
|
|
|
1151 >= cscf->large_client_header_buffers.size)
|
|
|
1152 {
|
|
|
1153 return NGX_DECLINED;
|
|
|
1154 }
|
|
|
1155
|
|
|
1156 hc = r->http_connection;
|
|
|
1157
|
|
|
1158 if (hc->nfree) {
|
|
|
1159 b = hc->free[--hc->nfree];
|
|
|
1160
|
|
|
1161 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
10
|
1162 "http large header free: %p %uz",
|
|
0
|
1163 b->pos, b->end - b->last);
|
|
|
1164
|
|
|
1165 } else if (hc->nbusy < cscf->large_client_header_buffers.num) {
|
|
|
1166
|
|
|
1167 if (hc->busy == NULL) {
|
|
|
1168 hc->busy = ngx_palloc(r->connection->pool,
|
|
|
1169 cscf->large_client_header_buffers.num * sizeof(ngx_buf_t *));
|
|
|
1170 if (hc->busy == NULL) {
|
|
|
1171 return NGX_ERROR;
|
|
|
1172 }
|
|
|
1173 }
|
|
|
1174
|
|
|
1175 b = ngx_create_temp_buf(r->connection->pool,
|
|
|
1176 cscf->large_client_header_buffers.size);
|
|
|
1177 if (b == NULL) {
|
|
|
1178 return NGX_ERROR;
|
|
|
1179 }
|
|
|
1180
|
|
|
1181 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
10
|
1182 "http large header alloc: %p %uz",
|
|
0
|
1183 b->pos, b->end - b->last);
|
|
|
1184
|
|
|
1185 } else {
|
|
|
1186 return NGX_DECLINED;
|
|
|
1187 }
|
|
|
1188
|
|
|
1189 hc->busy[hc->nbusy++] = b;
|
|
|
1190
|
|
|
1191 if (r->state == 0) {
|
|
|
1192 /*
|
|
|
1193 * r->state == 0 means that a header line was parsed successfully
|
|
|
1194 * and we do not need to copy incomplete header line and
|
|
|
1195 * to relocate the parser header pointers
|
|
|
1196 */
|
|
|
1197
|
|
24
|
1198 r->request_length += r->header_in->end - r->header_in->start;
|
|
|
1199
|
|
0
|
1200 r->header_in = b;
|
|
|
1201
|
|
|
1202 return NGX_OK;
|
|
|
1203 }
|
|
|
1204
|
|
|
1205 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1206 "http large header copy: %d", r->header_in->pos - old);
|
|
|
1207
|
|
24
|
1208 r->request_length += old - r->header_in->start;
|
|
|
1209
|
|
0
|
1210 new = b->start;
|
|
|
1211
|
|
|
1212 ngx_memcpy(new, old, r->header_in->pos - old);
|
|
|
1213
|
|
|
1214 b->pos = new + (r->header_in->pos - old);
|
|
|
1215 b->last = new + (r->header_in->pos - old);
|
|
|
1216
|
|
|
1217 if (request_line) {
|
|
|
1218 r->request_start = new;
|
|
|
1219
|
|
|
1220 if (r->request_end) {
|
|
|
1221 r->request_end = new + (r->request_end - old);
|
|
|
1222 }
|
|
|
1223
|
|
|
1224 r->method_end = new + (r->method_end - old);
|
|
|
1225
|
|
|
1226 r->uri_start = new + (r->uri_start - old);
|
|
|
1227 r->uri_end = new + (r->uri_end - old);
|
|
|
1228
|
|
|
1229 if (r->schema_start) {
|
|
|
1230 r->schema_start = new + (r->schema_start - old);
|
|
|
1231 r->schema_end = new + (r->schema_end - old);
|
|
|
1232 }
|
|
|
1233
|
|
|
1234 if (r->host_start) {
|
|
|
1235 r->host_start = new + (r->host_start - old);
|
|
270
|
1236 if (r->host_end) {
|
|
|
1237 r->host_end = new + (r->host_end - old);
|
|
|
1238 }
|
|
0
|
1239 }
|
|
|
1240
|
|
|
1241 if (r->port_start) {
|
|
|
1242 r->port_start = new + (r->port_start - old);
|
|
|
1243 r->port_end = new + (r->port_end - old);
|
|
|
1244 }
|
|
|
1245
|
|
|
1246 if (r->uri_ext) {
|
|
|
1247 r->uri_ext = new + (r->uri_ext - old);
|
|
|
1248 }
|
|
|
1249
|
|
|
1250 if (r->args_start) {
|
|
|
1251 r->args_start = new + (r->args_start - old);
|
|
|
1252 }
|
|
|
1253
|
|
354
|
1254 if (r->http_protocol.data) {
|
|
|
1255 r->http_protocol.data = new + (r->http_protocol.data - old);
|
|
|
1256 }
|
|
|
1257
|
|
0
|
1258 } else {
|
|
|
1259 r->header_name_start = new;
|
|
|
1260 r->header_name_end = new + (r->header_name_end - old);
|
|
|
1261 r->header_start = new + (r->header_start - old);
|
|
|
1262 r->header_end = new + (r->header_end - old);
|
|
|
1263 }
|
|
|
1264
|
|
|
1265 r->header_in = b;
|
|
|
1266
|
|
|
1267 return NGX_OK;
|
|
|
1268 }
|
|
|
1269
|
|
|
1270
|
|
50
|
1271 static ngx_int_t
|
|
58
|
1272 ngx_http_process_header_line(ngx_http_request_t *r, ngx_table_elt_t *h,
|
|
|
1273 ngx_uint_t offset)
|
|
|
1274 {
|
|
|
1275 ngx_table_elt_t **ph;
|
|
|
1276
|
|
|
1277 ph = (ngx_table_elt_t **) ((char *) &r->headers_in + offset);
|
|
|
1278
|
|
|
1279 if (*ph == NULL) {
|
|
|
1280 *ph = h;
|
|
|
1281 }
|
|
|
1282
|
|
|
1283 return NGX_OK;
|
|
|
1284 }
|
|
|
1285
|
|
|
1286
|
|
|
1287 static ngx_int_t
|
|
72
|
1288 ngx_http_process_unique_header_line(ngx_http_request_t *r, ngx_table_elt_t *h,
|
|
|
1289 ngx_uint_t offset)
|
|
|
1290 {
|
|
|
1291 ngx_table_elt_t **ph;
|
|
|
1292
|
|
|
1293 ph = (ngx_table_elt_t **) ((char *) &r->headers_in + offset);
|
|
|
1294
|
|
|
1295 if (*ph == NULL) {
|
|
|
1296 *ph = h;
|
|
|
1297 return NGX_OK;
|
|
|
1298 }
|
|
|
1299
|
|
|
1300 ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
|
|
230
|
1301 "client sent duplicate header line: \"%V: %V\", "
|
|
|
1302 "previous value: \"%V: %V\"",
|
|
|
1303 &h->key, &h->value, &(*ph)->key, &(*ph)->value);
|
|
72
|
1304
|
|
|
1305 ngx_http_finalize_request(r, NGX_HTTP_BAD_REQUEST);
|
|
|
1306
|
|
|
1307 return NGX_ERROR;
|
|
|
1308 }
|
|
|
1309
|
|
|
1310
|
|
|
1311 static ngx_int_t
|
|
376
|
1312 ngx_http_process_host(ngx_http_request_t *r, ngx_table_elt_t *h,
|
|
|
1313 ngx_uint_t offset)
|
|
|
1314 {
|
|
|
1315 ssize_t len;
|
|
|
1316
|
|
|
1317 if (r->headers_in.host == NULL) {
|
|
|
1318 r->headers_in.host = h;
|
|
|
1319 }
|
|
|
1320
|
|
|
1321 len = ngx_http_validate_host(h->value.data, h->value.len);
|
|
|
1322
|
|
|
1323 if (len <= 0) {
|
|
|
1324 ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
|
|
|
1325 "client sent invalid host header");
|
|
|
1326 ngx_http_finalize_request(r, NGX_HTTP_BAD_REQUEST);
|
|
|
1327 return NGX_ERROR;
|
|
|
1328 }
|
|
|
1329
|
|
|
1330 if (r->headers_in.server.len) {
|
|
|
1331 return NGX_OK;
|
|
|
1332 }
|
|
|
1333
|
|
|
1334 r->headers_in.server.len = len;
|
|
|
1335 r->headers_in.server.data = h->value.data;
|
|
|
1336
|
|
|
1337 return NGX_OK;
|
|
|
1338 }
|
|
|
1339
|
|
|
1340
|
|
|
1341 static ngx_int_t
|
|
336
|
1342 ngx_http_process_connection(ngx_http_request_t *r, ngx_table_elt_t *h,
|
|
|
1343 ngx_uint_t offset)
|
|
|
1344 {
|
|
340
|
1345 if (ngx_strcasestrn(h->value.data, "close", 5 - 1)) {
|
|
336
|
1346 r->headers_in.connection_type = NGX_HTTP_CONNECTION_CLOSE;
|
|
|
1347
|
|
340
|
1348 } else if (ngx_strcasestrn(h->value.data, "keep-alive", 10 - 1)) {
|
|
336
|
1349 r->headers_in.connection_type = NGX_HTTP_CONNECTION_KEEP_ALIVE;
|
|
|
1350 }
|
|
|
1351
|
|
|
1352 return NGX_OK;
|
|
|
1353 }
|
|
|
1354
|
|
|
1355
|
|
|
1356 static ngx_int_t
|
|
376
|
1357 ngx_http_process_user_agent(ngx_http_request_t *r, ngx_table_elt_t *h,
|
|
|
1358 ngx_uint_t offset)
|
|
|
1359 {
|
|
406
|
1360 u_char *user_agent, *msie;
|
|
376
|
1361
|
|
|
1362 if (r->headers_in.user_agent) {
|
|
|
1363 return NGX_OK;
|
|
|
1364 }
|
|
|
1365
|
|
|
1366 r->headers_in.user_agent = h;
|
|
|
1367
|
|
|
1368 /* check some widespread browsers while the header is in CPU cache */
|
|
|
1369
|
|
|
1370 user_agent = h->value.data;
|
|
|
1371
|
|
406
|
1372 msie = ngx_strstrn(user_agent, "MSIE ", 5 - 1);
|
|
|
1373
|
|
|
1374 if (msie && msie + 7 < user_agent + h->value.len) {
|
|
376
|
1375
|
|
|
1376 r->headers_in.msie = 1;
|
|
|
1377
|
|
406
|
1378 if (msie[6] == '.') {
|
|
|
1379
|
|
|
1380 switch (msie[5]) {
|
|
|
1381 case '4':
|
|
|
1382 r->headers_in.msie4 = 1;
|
|
|
1383 /* fall through */
|
|
|
1384 case '5':
|
|
529
|
1385 r->headers_in.msie6 = 1;
|
|
|
1386 break;
|
|
406
|
1387 case '6':
|
|
529
|
1388 if (ngx_strstrn(msie + 8, "SV1", 3 - 1) == NULL) {
|
|
|
1389 r->headers_in.msie6 = 1;
|
|
|
1390 }
|
|
|
1391 break;
|
|
406
|
1392 }
|
|
376
|
1393 }
|
|
|
1394
|
|
|
1395 #if 0
|
|
|
1396 /* MSIE ignores the SSL "close notify" alert */
|
|
|
1397 if (c->ssl) {
|
|
|
1398 c->ssl->no_send_shutdown = 1;
|
|
|
1399 }
|
|
|
1400 #endif
|
|
|
1401 }
|
|
|
1402
|
|
|
1403 if (ngx_strstrn(user_agent, "Opera", 5 - 1)) {
|
|
|
1404 r->headers_in.opera = 1;
|
|
|
1405 r->headers_in.msie = 0;
|
|
|
1406 r->headers_in.msie4 = 0;
|
|
406
|
1407 r->headers_in.msie6 = 0;
|
|
376
|
1408 }
|
|
|
1409
|
|
|
1410 if (!r->headers_in.msie && !r->headers_in.opera) {
|
|
|
1411
|
|
|
1412 if (ngx_strstrn(user_agent, "Gecko/", 6 - 1)) {
|
|
|
1413 r->headers_in.gecko = 1;
|
|
|
1414
|
|
|
1415 } else if (ngx_strstrn(user_agent, "Konqueror", 9 - 1)) {
|
|
|
1416 r->headers_in.konqueror = 1;
|
|
|
1417 }
|
|
|
1418 }
|
|
|
1419
|
|
|
1420 return NGX_OK;
|
|
|
1421 }
|
|
|
1422
|
|
|
1423
|
|
|
1424 static ngx_int_t
|
|
58
|
1425 ngx_http_process_cookie(ngx_http_request_t *r, ngx_table_elt_t *h,
|
|
|
1426 ngx_uint_t offset)
|
|
|
1427 {
|
|
|
1428 ngx_table_elt_t **cookie;
|
|
|
1429
|
|
|
1430 cookie = ngx_array_push(&r->headers_in.cookies);
|
|
72
|
1431 if (cookie) {
|
|
|
1432 *cookie = h;
|
|
|
1433 return NGX_OK;
|
|
58
|
1434 }
|
|
|
1435
|
|
72
|
1436 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
1437
|
|
|
1438 return NGX_ERROR;
|
|
58
|
1439 }
|
|
|
1440
|
|
|
1441
|
|
|
1442 static ngx_int_t
|
|
50
|
1443 ngx_http_process_request_header(ngx_http_request_t *r)
|
|
0
|
1444 {
|
|
376
|
1445 if (ngx_http_find_virtual_server(r, r->headers_in.server.data,
|
|
|
1446 r->headers_in.server.len)
|
|
|
1447 == NGX_ERROR)
|
|
|
1448 {
|
|
|
1449 ngx_http_finalize_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
1450 return NGX_ERROR;
|
|
|
1451 }
|
|
|
1452
|
|
|
1453 if (r->headers_in.host == NULL && r->http_version > NGX_HTTP_VERSION_10) {
|
|
|
1454 ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
|
|
|
1455 "client sent HTTP/1.1 request without \"Host\" header");
|
|
|
1456 ngx_http_finalize_request(r, NGX_HTTP_BAD_REQUEST);
|
|
|
1457 return NGX_ERROR;
|
|
0
|
1458 }
|
|
|
1459
|
|
|
1460 if (r->headers_in.content_length) {
|
|
|
1461 r->headers_in.content_length_n =
|
|
212
|
1462 ngx_atoof(r->headers_in.content_length->value.data,
|
|
0
|
1463 r->headers_in.content_length->value.len);
|
|
|
1464
|
|
|
1465 if (r->headers_in.content_length_n == NGX_ERROR) {
|
|
54
|
1466 ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
|
|
|
1467 "client sent invalid \"Content-Length\" header");
|
|
130
|
1468 ngx_http_finalize_request(r, NGX_HTTP_LENGTH_REQUIRED);
|
|
54
|
1469 return NGX_ERROR;
|
|
0
|
1470 }
|
|
|
1471 }
|
|
|
1472
|
|
435
|
1473 if (r->method & NGX_HTTP_PUT && r->headers_in.content_length_n == -1) {
|
|
54
|
1474 ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
|
|
362
|
1475 "client sent %V method without \"Content-Length\" header",
|
|
|
1476 &r->method_name);
|
|
130
|
1477 ngx_http_finalize_request(r, NGX_HTTP_LENGTH_REQUIRED);
|
|
|
1478 return NGX_ERROR;
|
|
|
1479 }
|
|
|
1480
|
|
336
|
1481 if (r->method & NGX_HTTP_TRACE) {
|
|
294
|
1482 ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
|
|
|
1483 "client sent TRACE method");
|
|
|
1484 ngx_http_finalize_request(r, NGX_HTTP_NOT_ALLOWED);
|
|
|
1485 return NGX_ERROR;
|
|
|
1486 }
|
|
|
1487
|
|
130
|
1488 if (r->headers_in.transfer_encoding
|
|
340
|
1489 && ngx_strcasestrn(r->headers_in.transfer_encoding->value.data,
|
|
|
1490 "chunked", 7 - 1))
|
|
130
|
1491 {
|
|
|
1492 ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
|
|
|
1493 "client sent \"Transfer-Encoding: chunked\" header");
|
|
|
1494 ngx_http_finalize_request(r, NGX_HTTP_LENGTH_REQUIRED);
|
|
54
|
1495 return NGX_ERROR;
|
|
0
|
1496 }
|
|
|
1497
|
|
336
|
1498 if (r->headers_in.connection_type == NGX_HTTP_CONNECTION_KEEP_ALIVE) {
|
|
|
1499 if (r->headers_in.keep_alive) {
|
|
|
1500 r->headers_in.keep_alive_n =
|
|
|
1501 ngx_atotm(r->headers_in.keep_alive->value.data,
|
|
|
1502 r->headers_in.keep_alive->value.len);
|
|
0
|
1503 }
|
|
|
1504 }
|
|
|
1505
|
|
308
|
1506 return NGX_OK;
|
|
|
1507 }
|
|
|
1508
|
|
|
1509
|
|
|
1510 static void
|
|
|
1511 ngx_http_process_request(ngx_http_request_t *r)
|
|
|
1512 {
|
|
356
|
1513 ngx_connection_t *c;
|
|
308
|
1514
|
|
|
1515 c = r->connection;
|
|
|
1516
|
|
354
|
1517 if (r->plain_http) {
|
|
|
1518 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
|
1519 "client sent plain HTTP request to HTTPS port");
|
|
|
1520 ngx_http_finalize_request(r, NGX_HTTP_TO_HTTPS);
|
|
|
1521 return;
|
|
|
1522 }
|
|
|
1523
|
|
308
|
1524 #if (NGX_HTTP_SSL)
|
|
|
1525
|
|
|
1526 if (c->ssl) {
|
|
356
|
1527 long rc;
|
|
372
|
1528 X509 *cert;
|
|
356
|
1529 ngx_http_ssl_srv_conf_t *sscf;
|
|
|
1530
|
|
218
|
1531 sscf = ngx_http_get_module_srv_conf(r, ngx_http_ssl_module);
|
|
|
1532
|
|
520
|
1533 if (sscf->verify) {
|
|
308
|
1534 rc = SSL_get_verify_result(c->ssl->connection);
|
|
218
|
1535
|
|
|
1536 if (rc != X509_V_OK) {
|
|
308
|
1537 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
220
|
1538 "client SSL certificate verify error: (%l:%s)",
|
|
218
|
1539 rc, X509_verify_cert_error_string(rc));
|
|
366
|
1540
|
|
|
1541 ngx_ssl_remove_cached_session(sscf->ssl.ctx,
|
|
|
1542 (SSL_get0_session(c->ssl->connection)));
|
|
|
1543
|
|
218
|
1544 ngx_http_finalize_request(r, NGX_HTTPS_CERT_ERROR);
|
|
308
|
1545 return;
|
|
218
|
1546 }
|
|
|
1547
|
|
520
|
1548 if (sscf->verify == 1) {
|
|
|
1549 cert = SSL_get_peer_certificate(c->ssl->connection);
|
|
|
1550
|
|
|
1551 if (cert == NULL) {
|
|
|
1552 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
|
1553 "client sent no required SSL certificate");
|
|
|
1554
|
|
|
1555 ngx_ssl_remove_cached_session(sscf->ssl.ctx,
|
|
366
|
1556 (SSL_get0_session(c->ssl->connection)));
|
|
|
1557
|
|
520
|
1558 ngx_http_finalize_request(r, NGX_HTTPS_NO_CERT);
|
|
|
1559 return;
|
|
|
1560 }
|
|
|
1561
|
|
|
1562 X509_free(cert);
|
|
218
|
1563 }
|
|
|
1564 }
|
|
|
1565 }
|
|
|
1566
|
|
|
1567 #endif
|
|
|
1568
|
|
308
|
1569 if (c->read->timer_set) {
|
|
|
1570 ngx_del_timer(c->read);
|
|
|
1571 }
|
|
|
1572
|
|
|
1573 #if (NGX_STAT_STUB)
|
|
511
|
1574 (void) ngx_atomic_fetch_add(ngx_stat_reading, -1);
|
|
308
|
1575 r->stat_reading = 0;
|
|
511
|
1576 (void) ngx_atomic_fetch_add(ngx_stat_writing, 1);
|
|
308
|
1577 r->stat_writing = 1;
|
|
|
1578 #endif
|
|
|
1579
|
|
|
1580 c->read->handler = ngx_http_request_handler;
|
|
|
1581 c->write->handler = ngx_http_request_handler;
|
|
326
|
1582 r->read_event_handler = ngx_http_block_reading;
|
|
308
|
1583
|
|
|
1584 ngx_http_handler(r);
|
|
|
1585
|
|
435
|
1586 ngx_http_run_posted_requests(c);
|
|
0
|
1587 }
|
|
|
1588
|
|
|
1589
|
|
376
|
1590 static ssize_t
|
|
|
1591 ngx_http_validate_host(u_char *host, size_t len)
|
|
26
|
1592 {
|
|
376
|
1593 u_char ch;
|
|
|
1594 size_t i, last;
|
|
|
1595 ngx_uint_t dot;
|
|
|
1596
|
|
|
1597 last = len;
|
|
|
1598 dot = 0;
|
|
|
1599
|
|
|
1600 for (i = 0; i < len; i++) {
|
|
|
1601 ch = host[i];
|
|
|
1602
|
|
|
1603 if (ch == '.') {
|
|
|
1604 if (dot) {
|
|
|
1605 return -1;
|
|
|
1606 }
|
|
|
1607
|
|
|
1608 dot = 1;
|
|
|
1609 continue;
|
|
|
1610 }
|
|
|
1611
|
|
|
1612 dot = 0;
|
|
|
1613
|
|
|
1614 if (ch == ':') {
|
|
|
1615 last = i;
|
|
|
1616 continue;
|
|
|
1617 }
|
|
|
1618
|
|
491
|
1619 if (ngx_path_separator(ch) || ch == '\0') {
|
|
376
|
1620 return -1;
|
|
|
1621 }
|
|
|
1622 }
|
|
|
1623
|
|
|
1624 if (dot) {
|
|
|
1625 last--;
|
|
|
1626 }
|
|
|
1627
|
|
|
1628 return last;
|
|
|
1629 }
|
|
|
1630
|
|
|
1631
|
|
|
1632 static ngx_int_t
|
|
|
1633 ngx_http_find_virtual_server(ngx_http_request_t *r, u_char *host, size_t len)
|
|
|
1634 {
|
|
394
|
1635 u_char *server;
|
|
|
1636 ngx_uint_t hash;
|
|
142
|
1637 ngx_http_core_loc_conf_t *clcf;
|
|
|
1638 ngx_http_core_srv_conf_t *cscf;
|
|
376
|
1639 u_char buf[32];
|
|
|
1640
|
|
487
|
1641 if (r->virtual_names == NULL) {
|
|
376
|
1642 return NGX_DECLINED;
|
|
|
1643 }
|
|
|
1644
|
|
|
1645 if (len <= 32) {
|
|
|
1646 server = buf;
|
|
|
1647
|
|
|
1648 } else {
|
|
382
|
1649 server = ngx_pnalloc(r->pool, len);
|
|
376
|
1650 if (server == NULL) {
|
|
|
1651 return NGX_ERROR;
|
|
|
1652 }
|
|
|
1653 }
|
|
|
1654
|
|
394
|
1655 hash = ngx_hash_strlow(server, host, len);
|
|
376
|
1656
|
|
487
|
1657 cscf = ngx_hash_find_combined(&r->virtual_names->names, hash, server, len);
|
|
312
|
1658
|
|
|
1659 if (cscf) {
|
|
|
1660 goto found;
|
|
26
|
1661 }
|
|
|
1662
|
|
326
|
1663 #if (NGX_PCRE)
|
|
|
1664
|
|
487
|
1665 if (r->virtual_names->nregex) {
|
|
469
|
1666 size_t ncaptures;
|
|
356
|
1667 ngx_int_t n;
|
|
|
1668 ngx_uint_t i;
|
|
|
1669 ngx_str_t name;
|
|
|
1670 ngx_http_server_name_t *sn;
|
|
326
|
1671
|
|
|
1672 name.len = len;
|
|
376
|
1673 name.data = server;
|
|
326
|
1674
|
|
465
|
1675 ncaptures = 0;
|
|
|
1676
|
|
487
|
1677 sn = r->virtual_names->regex;
|
|
|
1678
|
|
|
1679 for (i = 0; i < r->virtual_names->nregex; i++) {
|
|
326
|
1680
|
|
465
|
1681 if (sn[i].captures && r->captures == NULL) {
|
|
|
1682
|
|
467
|
1683 ncaptures = (NGX_HTTP_MAX_CAPTURES + 1) * 3;
|
|
|
1684
|
|
|
1685 r->captures = ngx_palloc(r->pool, ncaptures * sizeof(int));
|
|
465
|
1686 if (r->captures == NULL) {
|
|
|
1687 return NGX_ERROR;
|
|
|
1688 }
|
|
|
1689
|
|
|
1690 if (server == buf) {
|
|
|
1691 server = ngx_pnalloc(r->pool, len);
|
|
|
1692 if (server == NULL) {
|
|
|
1693 return NGX_ERROR;
|
|
|
1694 }
|
|
|
1695
|
|
|
1696 ngx_memcpy(server, buf, len);
|
|
|
1697 name.data = server;
|
|
|
1698 }
|
|
|
1699 }
|
|
|
1700
|
|
|
1701 n = ngx_regex_exec(sn[i].regex, &name, r->captures, ncaptures);
|
|
326
|
1702
|
|
|
1703 if (n == NGX_REGEX_NO_MATCHED) {
|
|
|
1704 continue;
|
|
|
1705 }
|
|
|
1706
|
|
|
1707 if (n < 0) {
|
|
|
1708 ngx_log_error(NGX_LOG_ALERT, r->connection->log, 0,
|
|
|
1709 ngx_regex_exec_n
|
|
|
1710 " failed: %d on \"%V\" using \"%V\"",
|
|
|
1711 n, &name, &sn[i].name);
|
|
376
|
1712 return NGX_ERROR;
|
|
326
|
1713 }
|
|
|
1714
|
|
|
1715 /* match */
|
|
|
1716
|
|
|
1717 cscf = sn[i].core_srv_conf;
|
|
|
1718
|
|
465
|
1719 r->ncaptures = ncaptures;
|
|
|
1720 r->captures_data = server;
|
|
|
1721
|
|
326
|
1722 goto found;
|
|
|
1723 }
|
|
|
1724 }
|
|
|
1725
|
|
|
1726 #endif
|
|
|
1727
|
|
376
|
1728 return NGX_OK;
|
|
58
|
1729
|
|
|
1730 found:
|
|
|
1731
|
|
142
|
1732 r->srv_conf = cscf->ctx->srv_conf;
|
|
|
1733 r->loc_conf = cscf->ctx->loc_conf;
|
|
58
|
1734
|
|
|
1735 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
493
|
1736 r->connection->log->file = clcf->error_log->file;
|
|
58
|
1737
|
|
|
1738 if (!(r->connection->log->log_level & NGX_LOG_DEBUG_CONNECTION)) {
|
|
493
|
1739 r->connection->log->log_level = clcf->error_log->log_level;
|
|
26
|
1740 }
|
|
|
1741
|
|
376
|
1742 return NGX_OK;
|
|
26
|
1743 }
|
|
|
1744
|
|
|
1745
|
|
58
|
1746 static void
|
|
|
1747 ngx_http_request_handler(ngx_event_t *ev)
|
|
|
1748 {
|
|
|
1749 ngx_connection_t *c;
|
|
|
1750 ngx_http_request_t *r;
|
|
214
|
1751 ngx_http_log_ctx_t *ctx;
|
|
58
|
1752
|
|
|
1753 c = ev->data;
|
|
|
1754 r = c->data;
|
|
|
1755
|
|
214
|
1756 ctx = c->log->data;
|
|
|
1757 ctx->current_request = r;
|
|
|
1758
|
|
435
|
1759 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
|
1760 "http run request: \"%V?%V\"", &r->uri, &r->args);
|
|
|
1761
|
|
58
|
1762 if (ev->write) {
|
|
|
1763 r->write_event_handler(r);
|
|
|
1764
|
|
|
1765 } else {
|
|
|
1766 r->read_event_handler(r);
|
|
|
1767 }
|
|
435
|
1768
|
|
|
1769 ngx_http_run_posted_requests(c);
|
|
|
1770 }
|
|
|
1771
|
|
|
1772
|
|
|
1773 void
|
|
|
1774 ngx_http_run_posted_requests(ngx_connection_t *c)
|
|
|
1775 {
|
|
|
1776 ngx_http_request_t *r;
|
|
|
1777 ngx_http_log_ctx_t *ctx;
|
|
|
1778 ngx_http_posted_request_t *pr;
|
|
|
1779
|
|
|
1780 for ( ;; ) {
|
|
|
1781
|
|
|
1782 if (c->destroyed) {
|
|
|
1783 return;
|
|
|
1784 }
|
|
|
1785
|
|
|
1786 r = c->data;
|
|
|
1787 pr = r->main->posted_requests;
|
|
|
1788
|
|
|
1789 if (pr == NULL) {
|
|
|
1790 return;
|
|
|
1791 }
|
|
|
1792
|
|
|
1793 r->main->posted_requests = pr->next;
|
|
|
1794
|
|
|
1795 r = pr->request;
|
|
|
1796
|
|
|
1797 ctx = c->log->data;
|
|
|
1798 ctx->current_request = r;
|
|
|
1799
|
|
|
1800 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
|
1801 "http posted request: \"%V?%V\"", &r->uri, &r->args);
|
|
|
1802
|
|
|
1803 r->write_event_handler(r);
|
|
|
1804 }
|
|
|
1805 }
|
|
|
1806
|
|
|
1807
|
|
|
1808 ngx_int_t
|
|
531
|
1809 ngx_http_post_request(ngx_http_request_t *r, ngx_http_posted_request_t *pr)
|
|
435
|
1810 {
|
|
531
|
1811 ngx_http_posted_request_t **p;
|
|
|
1812
|
|
435
|
1813 if (pr == NULL) {
|
|
531
|
1814 pr = ngx_palloc(r->pool, sizeof(ngx_http_posted_request_t));
|
|
|
1815 if (pr == NULL) {
|
|
|
1816 return NGX_ERROR;
|
|
|
1817 }
|
|
435
|
1818 }
|
|
|
1819
|
|
|
1820 pr->request = r;
|
|
|
1821 pr->next = NULL;
|
|
|
1822
|
|
|
1823 for (p = &r->main->posted_requests; *p; p = &(*p)->next) { /* void */ }
|
|
|
1824
|
|
|
1825 *p = pr;
|
|
|
1826
|
|
|
1827 return NGX_OK;
|
|
58
|
1828 }
|
|
|
1829
|
|
|
1830
|
|
50
|
1831 void
|
|
58
|
1832 ngx_http_finalize_request(ngx_http_request_t *r, ngx_int_t rc)
|
|
0
|
1833 {
|
|
330
|
1834 ngx_connection_t *c;
|
|
58
|
1835 ngx_http_request_t *pr;
|
|
0
|
1836 ngx_http_core_loc_conf_t *clcf;
|
|
|
1837
|
|
529
|
1838 c = r->connection;
|
|
|
1839
|
|
|
1840 ngx_log_debug5(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
|
1841 "http finalize request: %d, \"%V?%V\" a:%d, c:%d",
|
|
|
1842 rc, &r->uri, &r->args, r == c->data, r->main->count);
|
|
|
1843
|
|
58
|
1844 if (rc == NGX_DONE) {
|
|
529
|
1845 ngx_http_finalize_connection(r);
|
|
58
|
1846 return;
|
|
|
1847 }
|
|
|
1848
|
|
497
|
1849 if (rc == NGX_OK && r->filter_finalize) {
|
|
|
1850 c->error = 1;
|
|
|
1851 return;
|
|
|
1852 }
|
|
|
1853
|
|
230
|
1854 if (rc == NGX_DECLINED) {
|
|
|
1855 r->content_handler = NULL;
|
|
|
1856 r->write_event_handler = ngx_http_core_run_phases;
|
|
|
1857 ngx_http_core_run_phases(r);
|
|
|
1858 return;
|
|
|
1859 }
|
|
|
1860
|
|
248
|
1861 if (r != r->main && r->post_subrequest) {
|
|
|
1862 rc = r->post_subrequest->handler(r, r->post_subrequest->data, rc);
|
|
216
|
1863 }
|
|
|
1864
|
|
358
|
1865 if (rc == NGX_ERROR
|
|
|
1866 || rc == NGX_HTTP_REQUEST_TIME_OUT
|
|
|
1867 || rc == NGX_HTTP_CLIENT_CLOSED_REQUEST
|
|
|
1868 || c->error)
|
|
|
1869 {
|
|
162
|
1870 if (ngx_http_post_action(r) == NGX_OK) {
|
|
|
1871 return;
|
|
|
1872 }
|
|
|
1873
|
|
529
|
1874 if (r->main->blocked) {
|
|
|
1875 r->write_event_handler = ngx_http_request_finalizer;
|
|
|
1876 }
|
|
|
1877
|
|
|
1878 ngx_http_terminate_request(r, rc);
|
|
0
|
1879 return;
|
|
|
1880 }
|
|
|
1881
|
|
186
|
1882 if (rc >= NGX_HTTP_SPECIAL_RESPONSE
|
|
|
1883 || rc == NGX_HTTP_CREATED
|
|
|
1884 || rc == NGX_HTTP_NO_CONTENT)
|
|
|
1885 {
|
|
136
|
1886 if (rc == NGX_HTTP_CLOSE) {
|
|
529
|
1887 ngx_http_terminate_request(r, rc);
|
|
136
|
1888 return;
|
|
|
1889 }
|
|
|
1890
|
|
146
|
1891 if (r == r->main) {
|
|
330
|
1892 if (c->read->timer_set) {
|
|
|
1893 ngx_del_timer(c->read);
|
|
118
|
1894 }
|
|
|
1895
|
|
330
|
1896 if (c->write->timer_set) {
|
|
|
1897 ngx_del_timer(c->write);
|
|
118
|
1898 }
|
|
|
1899 }
|
|
|
1900
|
|
416
|
1901 c->read->handler = ngx_http_request_handler;
|
|
|
1902 c->write->handler = ngx_http_request_handler;
|
|
|
1903
|
|
118
|
1904 ngx_http_finalize_request(r, ngx_http_special_response_handler(r, rc));
|
|
|
1905 return;
|
|
|
1906 }
|
|
|
1907
|
|
435
|
1908 if (r != r->main) {
|
|
|
1909
|
|
|
1910 if (r->buffered || r->postponed) {
|
|
|
1911
|
|
|
1912 if (ngx_http_set_write_handler(r) != NGX_OK) {
|
|
529
|
1913 ngx_http_terminate_request(r, 0);
|
|
435
|
1914 }
|
|
|
1915
|
|
74
|
1916 return;
|
|
|
1917 }
|
|
435
|
1918
|
|
|
1919 #if (NGX_DEBUG)
|
|
|
1920 if (r != c->data) {
|
|
|
1921 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
|
1922 "http finalize non-active request: \"%V?%V\"",
|
|
|
1923 &r->uri, &r->args);
|
|
|
1924 }
|
|
|
1925 #endif
|
|
58
|
1926
|
|
|
1927 pr = r->parent;
|
|
|
1928
|
|
435
|
1929 if (r == c->data) {
|
|
|
1930
|
|
529
|
1931 r->main->count--;
|
|
|
1932
|
|
435
|
1933 if (!r->logged) {
|
|
|
1934
|
|
|
1935 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
1936
|
|
|
1937 if (clcf->log_subrequest) {
|
|
|
1938 ngx_http_log_request(r);
|
|
|
1939 }
|
|
|
1940
|
|
|
1941 r->logged = 1;
|
|
|
1942
|
|
|
1943 } else {
|
|
|
1944 ngx_log_error(NGX_LOG_ALERT, c->log, 0,
|
|
|
1945 "subrequest: \"%V?%V\" logged again",
|
|
|
1946 &r->uri, &r->args);
|
|
|
1947 }
|
|
|
1948
|
|
|
1949 r->done = 1;
|
|
|
1950
|
|
|
1951 if (pr->postponed && pr->postponed->request == r) {
|
|
|
1952 pr->postponed = pr->postponed->next;
|
|
|
1953 }
|
|
|
1954
|
|
|
1955 c->data = pr;
|
|
|
1956
|
|
|
1957 } else {
|
|
|
1958
|
|
|
1959 r->write_event_handler = ngx_http_request_finalizer;
|
|
|
1960
|
|
|
1961 if (r->waited) {
|
|
|
1962 r->done = 1;
|
|
|
1963 }
|
|
|
1964 }
|
|
|
1965
|
|
531
|
1966 if (ngx_http_post_request(pr, NULL) != NGX_OK) {
|
|
529
|
1967 r->main->count++;
|
|
|
1968 ngx_http_terminate_request(r, 0);
|
|
435
|
1969 return;
|
|
|
1970 }
|
|
|
1971
|
|
330
|
1972 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
435
|
1973 "http wake parent request: \"%V?%V\"",
|
|
|
1974 &pr->uri, &pr->args);
|
|
|
1975
|
|
|
1976 return;
|
|
|
1977 }
|
|
|
1978
|
|
529
|
1979 if (r->buffered || c->buffered || r->postponed || r->blocked) {
|
|
435
|
1980
|
|
|
1981 if (ngx_http_set_write_handler(r) != NGX_OK) {
|
|
529
|
1982 ngx_http_terminate_request(r, 0);
|
|
58
|
1983 }
|
|
|
1984
|
|
|
1985 return;
|
|
|
1986 }
|
|
0
|
1987
|
|
435
|
1988 if (r != c->data) {
|
|
|
1989 ngx_log_error(NGX_LOG_ALERT, c->log, 0,
|
|
|
1990 "http finalize non-active request: \"%V?%V\"",
|
|
|
1991 &r->uri, &r->args);
|
|
0
|
1992 return;
|
|
76
|
1993 }
|
|
|
1994
|
|
435
|
1995 r->done = 1;
|
|
0
|
1996
|
|
178
|
1997 if (!r->post_action) {
|
|
|
1998 r->request_complete = 1;
|
|
|
1999 }
|
|
|
2000
|
|
162
|
2001 if (ngx_http_post_action(r) == NGX_OK) {
|
|
126
|
2002 return;
|
|
|
2003 }
|
|
|
2004
|
|
330
|
2005 if (c->read->timer_set) {
|
|
|
2006 ngx_del_timer(c->read);
|
|
|
2007 }
|
|
|
2008
|
|
|
2009 if (c->write->timer_set) {
|
|
|
2010 c->write->delayed = 0;
|
|
|
2011 ngx_del_timer(c->write);
|
|
0
|
2012 }
|
|
|
2013
|
|
529
|
2014 if (c->read->eof) {
|
|
|
2015 ngx_http_close_request(r, 0);
|
|
330
|
2016 return;
|
|
0
|
2017 }
|
|
|
2018
|
|
529
|
2019 ngx_http_finalize_connection(r);
|
|
|
2020 }
|
|
|
2021
|
|
|
2022
|
|
|
2023 static void
|
|
|
2024 ngx_http_terminate_request(ngx_http_request_t *r, ngx_int_t rc)
|
|
|
2025 {
|
|
531
|
2026 ngx_http_cleanup_t *cln;
|
|
|
2027 ngx_http_request_t *mr;
|
|
|
2028 ngx_http_ephemeral_t *e;
|
|
529
|
2029
|
|
|
2030 mr = r->main;
|
|
|
2031
|
|
|
2032 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
2033 "http terminate request count:%d", mr->count);
|
|
|
2034
|
|
|
2035 cln = mr->cleanup;
|
|
|
2036 mr->cleanup = NULL;
|
|
|
2037
|
|
|
2038 while (cln) {
|
|
|
2039 if (cln->handler) {
|
|
|
2040 cln->handler(cln->data);
|
|
|
2041 }
|
|
|
2042
|
|
|
2043 cln = cln->next;
|
|
|
2044 }
|
|
|
2045
|
|
|
2046 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
2047 "http terminate cleanup count:%d blk:%d",
|
|
|
2048 mr->count, mr->blocked);
|
|
|
2049
|
|
|
2050 if (mr->write_event_handler) {
|
|
|
2051
|
|
|
2052 if (mr->blocked) {
|
|
|
2053 return;
|
|
|
2054 }
|
|
|
2055
|
|
531
|
2056 e = ngx_http_ephemeral(mr);
|
|
529
|
2057 mr->posted_requests = NULL;
|
|
|
2058 mr->write_event_handler = ngx_http_terminate_handler;
|
|
531
|
2059 (void) ngx_http_post_request(mr, &e->terminal_posted_request);
|
|
529
|
2060 return;
|
|
|
2061 }
|
|
|
2062
|
|
|
2063 ngx_http_close_request(mr, rc);
|
|
|
2064 }
|
|
|
2065
|
|
|
2066
|
|
|
2067 static void
|
|
|
2068 ngx_http_terminate_handler(ngx_http_request_t *r)
|
|
|
2069 {
|
|
|
2070 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
2071 "http terminate handler count:%d", r->count);
|
|
|
2072
|
|
|
2073 r->count = 1;
|
|
|
2074
|
|
|
2075 ngx_http_close_request(r, 0);
|
|
|
2076 }
|
|
|
2077
|
|
|
2078
|
|
|
2079 static void
|
|
|
2080 ngx_http_finalize_connection(ngx_http_request_t *r)
|
|
|
2081 {
|
|
|
2082 ngx_http_core_loc_conf_t *clcf;
|
|
|
2083
|
|
|
2084 if (r->main->count != 1) {
|
|
330
|
2085 ngx_http_close_request(r, 0);
|
|
138
|
2086 return;
|
|
|
2087 }
|
|
|
2088
|
|
435
|
2089 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
2090
|
|
0
|
2091 if (!ngx_terminate
|
|
|
2092 && !ngx_exiting
|
|
378
|
2093 && r->keepalive
|
|
0
|
2094 && clcf->keepalive_timeout > 0)
|
|
|
2095 {
|
|
|
2096 ngx_http_set_keepalive(r);
|
|
|
2097 return;
|
|
|
2098
|
|
|
2099 } else if (r->lingering_close && clcf->lingering_timeout > 0) {
|
|
|
2100 ngx_http_set_lingering_close(r);
|
|
|
2101 return;
|
|
|
2102 }
|
|
|
2103
|
|
|
2104 ngx_http_close_request(r, 0);
|
|
|
2105 }
|
|
|
2106
|
|
|
2107
|
|
74
|
2108 static ngx_int_t
|
|
50
|
2109 ngx_http_set_write_handler(ngx_http_request_t *r)
|
|
0
|
2110 {
|
|
|
2111 ngx_event_t *wev;
|
|
|
2112 ngx_http_core_loc_conf_t *clcf;
|
|
|
2113
|
|
58
|
2114 r->http_state = NGX_HTTP_WRITING_REQUEST_STATE;
|
|
|
2115
|
|
326
|
2116 r->read_event_handler = ngx_http_test_reading;
|
|
74
|
2117 r->write_event_handler = ngx_http_writer;
|
|
|
2118
|
|
0
|
2119 wev = r->connection->write;
|
|
|
2120
|
|
|
2121 if (wev->ready && wev->delayed) {
|
|
74
|
2122 return NGX_OK;
|
|
0
|
2123 }
|
|
|
2124
|
|
58
|
2125 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
0
|
2126 if (!wev->delayed) {
|
|
|
2127 ngx_add_timer(wev, clcf->send_timeout);
|
|
|
2128 }
|
|
|
2129
|
|
439
|
2130 if (ngx_handle_write_event(wev, clcf->send_lowat) != NGX_OK) {
|
|
0
|
2131 ngx_http_close_request(r, 0);
|
|
74
|
2132 return NGX_ERROR;
|
|
0
|
2133 }
|
|
74
|
2134
|
|
|
2135 return NGX_OK;
|
|
0
|
2136 }
|
|
|
2137
|
|
|
2138
|
|
58
|
2139 static void
|
|
|
2140 ngx_http_writer(ngx_http_request_t *r)
|
|
0
|
2141 {
|
|
|
2142 int rc;
|
|
58
|
2143 ngx_event_t *wev;
|
|
0
|
2144 ngx_connection_t *c;
|
|
|
2145 ngx_http_core_loc_conf_t *clcf;
|
|
|
2146
|
|
58
|
2147 c = r->connection;
|
|
|
2148 wev = c->write;
|
|
|
2149
|
|
132
|
2150 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, wev->log, 0,
|
|
|
2151 "http writer handler: \"%V?%V\"", &r->uri, &r->args);
|
|
0
|
2152
|
|
435
|
2153 clcf = ngx_http_get_module_loc_conf(r->main, ngx_http_core_module);
|
|
|
2154
|
|
0
|
2155 if (wev->timedout) {
|
|
|
2156 if (!wev->delayed) {
|
|
54
|
2157 ngx_log_error(NGX_LOG_INFO, c->log, NGX_ETIMEDOUT,
|
|
|
2158 "client timed out");
|
|
|
2159 c->timedout = 1;
|
|
116
|
2160
|
|
162
|
2161 ngx_http_finalize_request(r, NGX_HTTP_REQUEST_TIME_OUT);
|
|
0
|
2162 return;
|
|
|
2163 }
|
|
|
2164
|
|
|
2165 wev->timedout = 0;
|
|
|
2166 wev->delayed = 0;
|
|
|
2167
|
|
|
2168 if (!wev->ready) {
|
|
|
2169 ngx_add_timer(wev, clcf->send_timeout);
|
|
|
2170
|
|
439
|
2171 if (ngx_handle_write_event(wev, clcf->send_lowat) != NGX_OK) {
|
|
118
|
2172 ngx_http_close_request(r, 0);
|
|
0
|
2173 }
|
|
|
2174
|
|
|
2175 return;
|
|
|
2176 }
|
|
|
2177
|
|
|
2178 } else {
|
|
529
|
2179 if (wev->delayed || r->aio) {
|
|
0
|
2180 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, wev->log, 0,
|
|
|
2181 "http writer delayed");
|
|
|
2182
|
|
439
|
2183 if (ngx_handle_write_event(wev, clcf->send_lowat) != NGX_OK) {
|
|
118
|
2184 ngx_http_close_request(r, 0);
|
|
0
|
2185 }
|
|
|
2186
|
|
|
2187 return;
|
|
|
2188 }
|
|
|
2189 }
|
|
|
2190
|
|
132
|
2191 rc = ngx_http_output_filter(r, NULL);
|
|
|
2192
|
|
|
2193 ngx_log_debug3(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
|
2194 "http writer output filter: %d, \"%V?%V\"",
|
|
|
2195 rc, &r->uri, &r->args);
|
|
0
|
2196
|
|
503
|
2197 if (rc == NGX_ERROR) {
|
|
|
2198 ngx_http_finalize_request(r, rc);
|
|
|
2199 return;
|
|
|
2200 }
|
|
|
2201
|
|
435
|
2202 if (r->buffered || r->postponed || (r == r->main && c->buffered)) {
|
|
|
2203
|
|
0
|
2204 if (!wev->ready && !wev->delayed) {
|
|
|
2205 ngx_add_timer(wev, clcf->send_timeout);
|
|
|
2206 }
|
|
|
2207
|
|
439
|
2208 if (ngx_handle_write_event(wev, clcf->send_lowat) != NGX_OK) {
|
|
118
|
2209 ngx_http_close_request(r, 0);
|
|
0
|
2210 }
|
|
|
2211
|
|
435
|
2212 return;
|
|
0
|
2213 }
|
|
|
2214
|
|
132
|
2215 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, wev->log, 0,
|
|
|
2216 "http writer done: \"%V?%V\"", &r->uri, &r->args);
|
|
0
|
2217
|
|
|
2218 ngx_http_finalize_request(r, rc);
|
|
|
2219 }
|
|
|
2220
|
|
|
2221
|
|
435
|
2222 static void
|
|
|
2223 ngx_http_request_finalizer(ngx_http_request_t *r)
|
|
|
2224 {
|
|
|
2225 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
2226 "http finalizer done: \"%V?%V\"", &r->uri, &r->args);
|
|
|
2227
|
|
|
2228 ngx_http_finalize_request(r, 0);
|
|
|
2229 }
|
|
|
2230
|
|
|
2231
|
|
326
|
2232 void
|
|
|
2233 ngx_http_block_reading(ngx_http_request_t *r)
|
|
0
|
2234 {
|
|
318
|
2235 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
326
|
2236 "http reading blocked");
|
|
318
|
2237
|
|
|
2238 /* aio does not call this handler */
|
|
|
2239
|
|
|
2240 if ((ngx_event_flags & NGX_USE_LEVEL_EVENT)
|
|
|
2241 && r->connection->read->active)
|
|
|
2242 {
|
|
439
|
2243 if (ngx_del_event(r->connection->read, NGX_READ_EVENT, 0) != NGX_OK) {
|
|
318
|
2244 ngx_http_close_request(r, 0);
|
|
|
2245 }
|
|
|
2246 }
|
|
|
2247 }
|
|
|
2248
|
|
|
2249
|
|
425
|
2250 void
|
|
326
|
2251 ngx_http_test_reading(ngx_http_request_t *r)
|
|
318
|
2252 {
|
|
276
|
2253 int n;
|
|
|
2254 char buf[1];
|
|
|
2255 ngx_err_t err;
|
|
|
2256 ngx_event_t *rev;
|
|
|
2257 ngx_connection_t *c;
|
|
|
2258
|
|
|
2259 c = r->connection;
|
|
|
2260 rev = c->read;
|
|
|
2261
|
|
326
|
2262 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "http test reading");
|
|
276
|
2263
|
|
|
2264 #if (NGX_HAVE_KQUEUE)
|
|
|
2265
|
|
|
2266 if (ngx_event_flags & NGX_USE_KQUEUE_EVENT) {
|
|
|
2267
|
|
|
2268 if (!rev->pending_eof) {
|
|
|
2269 return;
|
|
|
2270 }
|
|
|
2271
|
|
|
2272 rev->eof = 1;
|
|
|
2273 c->error = 1;
|
|
|
2274 err = rev->kq_errno;
|
|
|
2275
|
|
|
2276 goto closed;
|
|
|
2277 }
|
|
|
2278
|
|
|
2279 #endif
|
|
|
2280
|
|
|
2281 n = recv(c->fd, buf, 1, MSG_PEEK);
|
|
|
2282
|
|
|
2283 if (n == 0) {
|
|
|
2284 rev->eof = 1;
|
|
|
2285 c->error = 1;
|
|
|
2286 err = 0;
|
|
|
2287
|
|
|
2288 goto closed;
|
|
|
2289
|
|
|
2290 } else if (n == -1) {
|
|
|
2291 err = ngx_socket_errno;
|
|
|
2292
|
|
|
2293 if (err != NGX_EAGAIN) {
|
|
|
2294 rev->eof = 1;
|
|
|
2295 c->error = 1;
|
|
|
2296
|
|
|
2297 goto closed;
|
|
|
2298 }
|
|
|
2299 }
|
|
0
|
2300
|
|
|
2301 /* aio does not call this handler */
|
|
|
2302
|
|
276
|
2303 if ((ngx_event_flags & NGX_USE_LEVEL_EVENT) && rev->active) {
|
|
|
2304
|
|
439
|
2305 if (ngx_del_event(rev, NGX_READ_EVENT, 0) != NGX_OK) {
|
|
0
|
2306 ngx_http_close_request(r, 0);
|
|
|
2307 }
|
|
|
2308 }
|
|
276
|
2309
|
|
|
2310 return;
|
|
|
2311
|
|
|
2312 closed:
|
|
|
2313
|
|
|
2314 if (err) {
|
|
|
2315 rev->error = 1;
|
|
|
2316 }
|
|
|
2317
|
|
|
2318 ngx_log_error(NGX_LOG_INFO, c->log, err,
|
|
|
2319 "client closed prematurely connection");
|
|
|
2320
|
|
286
|
2321 ngx_http_finalize_request(r, 0);
|
|
0
|
2322 }
|
|
|
2323
|
|
|
2324
|
|
50
|
2325 static void
|
|
|
2326 ngx_http_set_keepalive(ngx_http_request_t *r)
|
|
0
|
2327 {
|
|
2
|
2328 int tcp_nodelay;
|
|
0
|
2329 ngx_int_t i;
|
|
|
2330 ngx_buf_t *b, *f;
|
|
|
2331 ngx_event_t *rev, *wev;
|
|
|
2332 ngx_connection_t *c;
|
|
|
2333 ngx_http_connection_t *hc;
|
|
|
2334 ngx_http_core_srv_conf_t *cscf;
|
|
|
2335 ngx_http_core_loc_conf_t *clcf;
|
|
|
2336
|
|
|
2337 c = r->connection;
|
|
|
2338 rev = c->read;
|
|
|
2339
|
|
326
|
2340 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
2341
|
|
0
|
2342 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "set http keepalive handler");
|
|
|
2343
|
|
326
|
2344 if (r->discard_body) {
|
|
451
|
2345 r->write_event_handler = ngx_http_request_empty_handler;
|
|
326
|
2346 r->lingering_time = ngx_time() + (time_t) (clcf->lingering_time / 1000);
|
|
|
2347 ngx_add_timer(rev, clcf->lingering_timeout);
|
|
|
2348 return;
|
|
|
2349 }
|
|
|
2350
|
|
32
|
2351 c->log->action = "closing request";
|
|
0
|
2352
|
|
|
2353 hc = r->http_connection;
|
|
|
2354 b = r->header_in;
|
|
|
2355
|
|
|
2356 if (b->pos < b->last) {
|
|
|
2357
|
|
|
2358 /* the pipelined request */
|
|
|
2359
|
|
|
2360 if (b != c->buffer) {
|
|
|
2361
|
|
4
|
2362 /*
|
|
|
2363 * If the large header buffers were allocated while the previous
|
|
|
2364 * request processing then we do not use c->buffer for
|
|
|
2365 * the pipelined request (see ngx_http_init_request()).
|
|
126
|
2366 *
|
|
4
|
2367 * Now we would move the large header buffers to the free list.
|
|
|
2368 */
|
|
0
|
2369
|
|
|
2370 cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
|
|
|
2371
|
|
|
2372 if (hc->free == NULL) {
|
|
|
2373 hc->free = ngx_palloc(c->pool,
|
|
|
2374 cscf->large_client_header_buffers.num * sizeof(ngx_buf_t *));
|
|
|
2375
|
|
|
2376 if (hc->free == NULL) {
|
|
26
|
2377 ngx_http_close_request(r, 0);
|
|
0
|
2378 return;
|
|
|
2379 }
|
|
|
2380 }
|
|
|
2381
|
|
|
2382 for (i = 0; i < hc->nbusy - 1; i++) {
|
|
|
2383 f = hc->busy[i];
|
|
|
2384 hc->free[hc->nfree++] = f;
|
|
|
2385 f->pos = f->start;
|
|
|
2386 f->last = f->start;
|
|
|
2387 }
|
|
|
2388
|
|
|
2389 hc->busy[0] = b;
|
|
|
2390 hc->nbusy = 1;
|
|
|
2391 }
|
|
|
2392 }
|
|
|
2393
|
|
529
|
2394 ngx_http_free_request(r, 0);
|
|
118
|
2395
|
|
0
|
2396 c->data = hc;
|
|
|
2397
|
|
|
2398 ngx_add_timer(rev, clcf->keepalive_timeout);
|
|
|
2399
|
|
439
|
2400 if (ngx_handle_read_event(rev, 0) != NGX_OK) {
|
|
0
|
2401 ngx_http_close_connection(c);
|
|
|
2402 return;
|
|
|
2403 }
|
|
|
2404
|
|
|
2405 wev = c->write;
|
|
58
|
2406 wev->handler = ngx_http_empty_handler;
|
|
0
|
2407
|
|
|
2408 if (b->pos < b->last) {
|
|
|
2409
|
|
|
2410 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "pipelined request");
|
|
|
2411
|
|
116
|
2412 #if (NGX_STAT_STUB)
|
|
511
|
2413 (void) ngx_atomic_fetch_add(ngx_stat_reading, 1);
|
|
116
|
2414 #endif
|
|
|
2415
|
|
0
|
2416 hc->pipeline = 1;
|
|
32
|
2417 c->log->action = "reading client pipelined request line";
|
|
116
|
2418
|
|
376
|
2419 rev->handler = ngx_http_init_request;
|
|
|
2420 ngx_post_event(rev, &ngx_posted_events);
|
|
0
|
2421 return;
|
|
|
2422 }
|
|
|
2423
|
|
|
2424 hc->pipeline = 0;
|
|
|
2425
|
|
4
|
2426 /*
|
|
|
2427 * To keep a memory footprint as small as possible for an idle
|
|
|
2428 * keepalive connection we try to free the ngx_http_request_t and
|
|
|
2429 * c->buffer's memory if they were allocated outside the c->pool.
|
|
|
2430 * The large header buffers are always allocated outside the c->pool and
|
|
|
2431 * are freed too.
|
|
|
2432 */
|
|
|
2433
|
|
0
|
2434 if (ngx_pfree(c->pool, r) == NGX_OK) {
|
|
|
2435 hc->request = NULL;
|
|
|
2436 }
|
|
|
2437
|
|
|
2438 b = c->buffer;
|
|
|
2439
|
|
|
2440 if (ngx_pfree(c->pool, b->start) == NGX_OK) {
|
|
4
|
2441
|
|
|
2442 /*
|
|
|
2443 * the special note for ngx_http_keepalive_handler() that
|
|
|
2444 * c->buffer's memory was freed
|
|
|
2445 */
|
|
|
2446
|
|
0
|
2447 b->pos = NULL;
|
|
|
2448
|
|
|
2449 } else {
|
|
|
2450 b->pos = b->start;
|
|
|
2451 b->last = b->start;
|
|
|
2452 }
|
|
|
2453
|
|
10
|
2454 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, c->log, 0, "hc free: %p %d",
|
|
0
|
2455 hc->free, hc->nfree);
|
|
|
2456
|
|
|
2457 if (hc->free) {
|
|
|
2458 for (i = 0; i < hc->nfree; i++) {
|
|
356
|
2459 ngx_pfree(c->pool, hc->free[i]->start);
|
|
0
|
2460 hc->free[i] = NULL;
|
|
|
2461 }
|
|
|
2462
|
|
|
2463 hc->nfree = 0;
|
|
|
2464 }
|
|
|
2465
|
|
10
|
2466 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, c->log, 0, "hc busy: %p %d",
|
|
0
|
2467 hc->busy, hc->nbusy);
|
|
|
2468
|
|
|
2469 if (hc->busy) {
|
|
|
2470 for (i = 0; i < hc->nbusy; i++) {
|
|
356
|
2471 ngx_pfree(c->pool, hc->busy[i]->start);
|
|
0
|
2472 hc->busy[i] = NULL;
|
|
|
2473 }
|
|
|
2474
|
|
|
2475 hc->nbusy = 0;
|
|
|
2476 }
|
|
|
2477
|
|
358
|
2478 #if (NGX_HTTP_SSL)
|
|
|
2479 if (c->ssl) {
|
|
|
2480 ngx_ssl_free_buffer(c);
|
|
|
2481 }
|
|
|
2482 #endif
|
|
|
2483
|
|
58
|
2484 rev->handler = ngx_http_keepalive_handler;
|
|
0
|
2485
|
|
132
|
2486 if (wev->active && (ngx_event_flags & NGX_USE_LEVEL_EVENT)) {
|
|
439
|
2487 if (ngx_del_event(wev, NGX_WRITE_EVENT, 0) != NGX_OK) {
|
|
132
|
2488 ngx_http_close_connection(c);
|
|
|
2489 return;
|
|
0
|
2490 }
|
|
|
2491 }
|
|
|
2492
|
|
32
|
2493 c->log->action = "keepalive";
|
|
0
|
2494
|
|
|
2495 if (c->tcp_nopush == NGX_TCP_NOPUSH_SET) {
|
|
50
|
2496 if (ngx_tcp_push(c->fd) == -1) {
|
|
0
|
2497 ngx_connection_error(c, ngx_socket_errno, ngx_tcp_push_n " failed");
|
|
|
2498 ngx_http_close_connection(c);
|
|
|
2499 return;
|
|
|
2500 }
|
|
2
|
2501
|
|
0
|
2502 c->tcp_nopush = NGX_TCP_NOPUSH_UNSET;
|
|
22
|
2503 tcp_nodelay = ngx_tcp_nodelay_and_tcp_nopush ? 1 : 0;
|
|
2
|
2504
|
|
|
2505 } else {
|
|
22
|
2506 tcp_nodelay = 1;
|
|
|
2507 }
|
|
|
2508
|
|
32
|
2509 if (tcp_nodelay
|
|
|
2510 && clcf->tcp_nodelay
|
|
|
2511 && c->tcp_nodelay == NGX_TCP_NODELAY_UNSET)
|
|
|
2512 {
|
|
22
|
2513 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "tcp_nodelay");
|
|
|
2514
|
|
|
2515 if (setsockopt(c->fd, IPPROTO_TCP, TCP_NODELAY,
|
|
184
|
2516 (const void *) &tcp_nodelay, sizeof(int))
|
|
|
2517 == -1)
|
|
22
|
2518 {
|
|
469
|
2519 #if (NGX_SOLARIS)
|
|
|
2520 /* Solaris returns EINVAL if a socket has been shut down */
|
|
|
2521 c->log_error = NGX_ERROR_IGNORE_EINVAL;
|
|
|
2522 #endif
|
|
|
2523
|
|
22
|
2524 ngx_connection_error(c, ngx_socket_errno,
|
|
|
2525 "setsockopt(TCP_NODELAY) failed");
|
|
469
|
2526
|
|
|
2527 c->log_error = NGX_ERROR_INFO;
|
|
22
|
2528 ngx_http_close_connection(c);
|
|
|
2529 return;
|
|
2
|
2530 }
|
|
22
|
2531
|
|
32
|
2532 c->tcp_nodelay = NGX_TCP_NODELAY_SET;
|
|
0
|
2533 }
|
|
|
2534
|
|
|
2535 #if 0
|
|
4
|
2536 /* if ngx_http_request_t was freed then we need some other place */
|
|
0
|
2537 r->http_state = NGX_HTTP_KEEPALIVE_STATE;
|
|
|
2538 #endif
|
|
|
2539
|
|
290
|
2540 c->idle = 1;
|
|
|
2541
|
|
0
|
2542 if (rev->ready) {
|
|
376
|
2543 ngx_post_event(rev, &ngx_posted_events);
|
|
0
|
2544 }
|
|
|
2545 }
|
|
|
2546
|
|
|
2547
|
|
50
|
2548 static void
|
|
|
2549 ngx_http_keepalive_handler(ngx_event_t *rev)
|
|
0
|
2550 {
|
|
50
|
2551 size_t size;
|
|
|
2552 ssize_t n;
|
|
|
2553 ngx_buf_t *b;
|
|
|
2554 ngx_connection_t *c;
|
|
0
|
2555
|
|
|
2556 c = rev->data;
|
|
|
2557
|
|
|
2558 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "http keepalive handler");
|
|
|
2559
|
|
290
|
2560 if (rev->timedout || c->close) {
|
|
0
|
2561 ngx_http_close_connection(c);
|
|
|
2562 return;
|
|
|
2563 }
|
|
|
2564
|
|
18
|
2565 #if (NGX_HAVE_KQUEUE)
|
|
0
|
2566
|
|
4
|
2567 if (ngx_event_flags & NGX_USE_KQUEUE_EVENT) {
|
|
136
|
2568 if (rev->pending_eof) {
|
|
32
|
2569 c->log->handler = NULL;
|
|
0
|
2570 ngx_log_error(NGX_LOG_INFO, c->log, rev->kq_errno,
|
|
10
|
2571 "kevent() reported that client %V closed "
|
|
32
|
2572 "keepalive connection", &c->addr_text);
|
|
22
|
2573 #if (NGX_HTTP_SSL)
|
|
|
2574 if (c->ssl) {
|
|
96
|
2575 c->ssl->no_send_shutdown = 1;
|
|
22
|
2576 }
|
|
|
2577 #endif
|
|
0
|
2578 ngx_http_close_connection(c);
|
|
|
2579 return;
|
|
|
2580 }
|
|
|
2581 }
|
|
|
2582
|
|
|
2583 #endif
|
|
|
2584
|
|
|
2585 b = c->buffer;
|
|
|
2586 size = b->end - b->start;
|
|
|
2587
|
|
|
2588 if (b->pos == NULL) {
|
|
4
|
2589
|
|
|
2590 /*
|
|
|
2591 * The c->buffer's memory was freed by ngx_http_set_keepalive().
|
|
|
2592 * However, the c->buffer->start and c->buffer->end were not changed
|
|
|
2593 * to keep the buffer size.
|
|
|
2594 */
|
|
|
2595
|
|
50
|
2596 b->pos = ngx_palloc(c->pool, size);
|
|
|
2597 if (b->pos == NULL) {
|
|
0
|
2598 ngx_http_close_connection(c);
|
|
|
2599 return;
|
|
|
2600 }
|
|
|
2601
|
|
|
2602 b->start = b->pos;
|
|
|
2603 b->last = b->pos;
|
|
|
2604 b->end = b->pos + size;
|
|
|
2605 }
|
|
|
2606
|
|
|
2607 /*
|
|
|
2608 * MSIE closes a keepalive connection with RST flag
|
|
|
2609 * so we ignore ECONNRESET here.
|
|
|
2610 */
|
|
|
2611
|
|
|
2612 c->log_error = NGX_ERROR_IGNORE_ECONNRESET;
|
|
|
2613 ngx_set_socket_errno(0);
|
|
|
2614
|
|
|
2615 n = c->recv(c, b->last, size);
|
|
|
2616 c->log_error = NGX_ERROR_INFO;
|
|
|
2617
|
|
|
2618 if (n == NGX_AGAIN) {
|
|
439
|
2619 if (ngx_handle_read_event(rev, 0) != NGX_OK) {
|
|
24
|
2620 ngx_http_close_connection(c);
|
|
|
2621 }
|
|
|
2622
|
|
0
|
2623 return;
|
|
|
2624 }
|
|
|
2625
|
|
|
2626 if (n == NGX_ERROR) {
|
|
|
2627 ngx_http_close_connection(c);
|
|
|
2628 return;
|
|
|
2629 }
|
|
|
2630
|
|
32
|
2631 c->log->handler = NULL;
|
|
0
|
2632
|
|
|
2633 if (n == 0) {
|
|
|
2634 ngx_log_error(NGX_LOG_INFO, c->log, ngx_socket_errno,
|
|
32
|
2635 "client %V closed keepalive connection", &c->addr_text);
|
|
0
|
2636 ngx_http_close_connection(c);
|
|
|
2637 return;
|
|
|
2638 }
|
|
|
2639
|
|
|
2640 b->last += n;
|
|
32
|
2641
|
|
116
|
2642 #if (NGX_STAT_STUB)
|
|
511
|
2643 (void) ngx_atomic_fetch_add(ngx_stat_reading, 1);
|
|
116
|
2644 #endif
|
|
|
2645
|
|
32
|
2646 c->log->handler = ngx_http_log_error;
|
|
|
2647 c->log->action = "reading client request line";
|
|
0
|
2648
|
|
290
|
2649 c->idle = 0;
|
|
|
2650
|
|
0
|
2651 ngx_http_init_request(rev);
|
|
|
2652 }
|
|
|
2653
|
|
|
2654
|
|
50
|
2655 static void
|
|
|
2656 ngx_http_set_lingering_close(ngx_http_request_t *r)
|
|
126
|
2657 {
|
|
0
|
2658 ngx_event_t *rev, *wev;
|
|
|
2659 ngx_connection_t *c;
|
|
|
2660 ngx_http_core_loc_conf_t *clcf;
|
|
|
2661
|
|
|
2662 c = r->connection;
|
|
|
2663
|
|
|
2664 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
2665
|
|
|
2666 rev = c->read;
|
|
58
|
2667 rev->handler = ngx_http_lingering_close_handler;
|
|
0
|
2668
|
|
106
|
2669 r->lingering_time = ngx_time() + (time_t) (clcf->lingering_time / 1000);
|
|
0
|
2670 ngx_add_timer(rev, clcf->lingering_timeout);
|
|
|
2671
|
|
439
|
2672 if (ngx_handle_read_event(rev, 0) != NGX_OK) {
|
|
0
|
2673 ngx_http_close_request(r, 0);
|
|
|
2674 return;
|
|
|
2675 }
|
|
|
2676
|
|
|
2677 wev = c->write;
|
|
58
|
2678 wev->handler = ngx_http_empty_handler;
|
|
0
|
2679
|
|
132
|
2680 if (wev->active && (ngx_event_flags & NGX_USE_LEVEL_EVENT)) {
|
|
439
|
2681 if (ngx_del_event(wev, NGX_WRITE_EVENT, 0) != NGX_OK) {
|
|
132
|
2682 ngx_http_close_request(r, 0);
|
|
|
2683 return;
|
|
0
|
2684 }
|
|
|
2685 }
|
|
|
2686
|
|
|
2687 if (ngx_shutdown_socket(c->fd, NGX_WRITE_SHUTDOWN) == -1) {
|
|
|
2688 ngx_connection_error(c, ngx_socket_errno,
|
|
|
2689 ngx_shutdown_socket_n " failed");
|
|
|
2690 ngx_http_close_request(r, 0);
|
|
|
2691 return;
|
|
|
2692 }
|
|
|
2693
|
|
|
2694 if (rev->ready) {
|
|
|
2695 ngx_http_lingering_close_handler(rev);
|
|
|
2696 }
|
|
|
2697 }
|
|
|
2698
|
|
|
2699
|
|
50
|
2700 static void
|
|
|
2701 ngx_http_lingering_close_handler(ngx_event_t *rev)
|
|
0
|
2702 {
|
|
|
2703 ssize_t n;
|
|
|
2704 ngx_msec_t timer;
|
|
|
2705 ngx_connection_t *c;
|
|
|
2706 ngx_http_request_t *r;
|
|
|
2707 ngx_http_core_loc_conf_t *clcf;
|
|
|
2708 u_char buffer[NGX_HTTP_LINGERING_BUFFER_SIZE];
|
|
|
2709
|
|
|
2710 c = rev->data;
|
|
|
2711 r = c->data;
|
|
|
2712
|
|
|
2713 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
|
2714 "http lingering close handler");
|
|
|
2715
|
|
|
2716 if (rev->timedout) {
|
|
126
|
2717 c->timedout = 1;
|
|
0
|
2718 ngx_http_close_request(r, 0);
|
|
|
2719 return;
|
|
|
2720 }
|
|
|
2721
|
|
346
|
2722 timer = (ngx_msec_t) (r->lingering_time - ngx_time());
|
|
0
|
2723 if (timer <= 0) {
|
|
|
2724 ngx_http_close_request(r, 0);
|
|
|
2725 return;
|
|
|
2726 }
|
|
|
2727
|
|
|
2728 do {
|
|
|
2729 n = c->recv(c, buffer, NGX_HTTP_LINGERING_BUFFER_SIZE);
|
|
|
2730
|
|
|
2731 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0, "lingering read: %d", n);
|
|
|
2732
|
|
|
2733 if (n == NGX_ERROR || n == 0) {
|
|
|
2734 ngx_http_close_request(r, 0);
|
|
|
2735 return;
|
|
|
2736 }
|
|
|
2737
|
|
|
2738 } while (rev->ready);
|
|
|
2739
|
|
439
|
2740 if (ngx_handle_read_event(rev, 0) != NGX_OK) {
|
|
26
|
2741 ngx_http_close_request(r, 0);
|
|
24
|
2742 return;
|
|
|
2743 }
|
|
|
2744
|
|
0
|
2745 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
2746
|
|
|
2747 timer *= 1000;
|
|
|
2748
|
|
|
2749 if (timer > clcf->lingering_timeout) {
|
|
|
2750 timer = clcf->lingering_timeout;
|
|
|
2751 }
|
|
|
2752
|
|
|
2753 ngx_add_timer(rev, timer);
|
|
|
2754 }
|
|
|
2755
|
|
|
2756
|
|
50
|
2757 void
|
|
|
2758 ngx_http_empty_handler(ngx_event_t *wev)
|
|
0
|
2759 {
|
|
|
2760 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, wev->log, 0, "http empty handler");
|
|
|
2761
|
|
|
2762 return;
|
|
|
2763 }
|
|
|
2764
|
|
|
2765
|
|
58
|
2766 void
|
|
|
2767 ngx_http_request_empty_handler(ngx_http_request_t *r)
|
|
|
2768 {
|
|
|
2769 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
132
|
2770 "http request empty handler");
|
|
58
|
2771
|
|
|
2772 return;
|
|
|
2773 }
|
|
|
2774
|
|
|
2775
|
|
50
|
2776 ngx_int_t
|
|
130
|
2777 ngx_http_send_special(ngx_http_request_t *r, ngx_uint_t flags)
|
|
0
|
2778 {
|
|
|
2779 ngx_buf_t *b;
|
|
|
2780 ngx_chain_t out;
|
|
|
2781
|
|
50
|
2782 b = ngx_calloc_buf(r->pool);
|
|
|
2783 if (b == NULL) {
|
|
0
|
2784 return NGX_ERROR;
|
|
|
2785 }
|
|
|
2786
|
|
130
|
2787 if (flags & NGX_HTTP_LAST) {
|
|
515
|
2788
|
|
|
2789 if (r == r->main && !r->post_action) {
|
|
|
2790 b->last_buf = 1;
|
|
|
2791
|
|
|
2792 } else {
|
|
520
|
2793 b->sync = 1;
|
|
515
|
2794 b->last_in_chain = 1;
|
|
|
2795 }
|
|
130
|
2796 }
|
|
|
2797
|
|
|
2798 if (flags & NGX_HTTP_FLUSH) {
|
|
|
2799 b->flush = 1;
|
|
|
2800 }
|
|
|
2801
|
|
0
|
2802 out.buf = b;
|
|
|
2803 out.next = NULL;
|
|
|
2804
|
|
|
2805 return ngx_http_output_filter(r, &out);
|
|
|
2806 }
|
|
|
2807
|
|
|
2808
|
|
162
|
2809 static ngx_int_t
|
|
|
2810 ngx_http_post_action(ngx_http_request_t *r)
|
|
|
2811 {
|
|
|
2812 ngx_http_core_loc_conf_t *clcf;
|
|
|
2813
|
|
|
2814 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
2815
|
|
|
2816 if (clcf->post_action.data == NULL) {
|
|
|
2817 return NGX_DECLINED;
|
|
|
2818 }
|
|
|
2819
|
|
172
|
2820 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
2821 "post action: \"%V\"", &clcf->post_action);
|
|
|
2822
|
|
162
|
2823 r->http_version = NGX_HTTP_VERSION_9;
|
|
|
2824 r->header_only = 1;
|
|
178
|
2825 r->post_action = 1;
|
|
162
|
2826
|
|
326
|
2827 r->read_event_handler = ngx_http_block_reading;
|
|
262
|
2828
|
|
366
|
2829 if (clcf->post_action.data[0] == '/') {
|
|
|
2830 ngx_http_internal_redirect(r, &clcf->post_action, NULL);
|
|
|
2831
|
|
|
2832 } else {
|
|
|
2833 ngx_http_named_location(r, &clcf->post_action);
|
|
|
2834 }
|
|
162
|
2835
|
|
|
2836 return NGX_OK;
|
|
|
2837 }
|
|
|
2838
|
|
|
2839
|
|
|
2840 static void
|
|
529
|
2841 ngx_http_close_request(ngx_http_request_t *r, ngx_int_t rc)
|
|
0
|
2842 {
|
|
188
|
2843 ngx_connection_t *c;
|
|
118
|
2844
|
|
529
|
2845 r = r->main;
|
|
118
|
2846 c = r->connection;
|
|
188
|
2847
|
|
529
|
2848 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
|
2849 "http request count:%d blk:%d", r->count, r->blocked);
|
|
|
2850
|
|
|
2851 if (r->count == 0) {
|
|
|
2852 ngx_log_error(NGX_LOG_ALERT, c->log, 0, "http request count is zero");
|
|
|
2853 }
|
|
|
2854
|
|
|
2855 r->count--;
|
|
|
2856
|
|
|
2857 if (r->count || r->blocked) {
|
|
|
2858 return;
|
|
|
2859 }
|
|
|
2860
|
|
|
2861 ngx_http_free_request(r, rc);
|
|
118
|
2862 ngx_http_close_connection(c);
|
|
|
2863 }
|
|
|
2864
|
|
|
2865
|
|
162
|
2866 static void
|
|
529
|
2867 ngx_http_free_request(ngx_http_request_t *r, ngx_int_t rc)
|
|
118
|
2868 {
|
|
420
|
2869 ngx_log_t *log;
|
|
|
2870 struct linger linger;
|
|
|
2871 ngx_http_cleanup_t *cln;
|
|
|
2872 ngx_http_log_ctx_t *ctx;
|
|
|
2873 ngx_http_core_loc_conf_t *clcf;
|
|
0
|
2874
|
|
|
2875 log = r->connection->log;
|
|
|
2876
|
|
|
2877 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, log, 0, "http close request");
|
|
|
2878
|
|
|
2879 if (r->pool == NULL) {
|
|
80
|
2880 ngx_log_error(NGX_LOG_ALERT, log, 0, "http request already closed");
|
|
0
|
2881 return;
|
|
|
2882 }
|
|
|
2883
|
|
188
|
2884 for (cln = r->cleanup; cln; cln = cln->next) {
|
|
|
2885 if (cln->handler) {
|
|
|
2886 cln->handler(cln->data);
|
|
|
2887 }
|
|
|
2888 }
|
|
|
2889
|
|
0
|
2890 #if (NGX_STAT_STUB)
|
|
116
|
2891
|
|
0
|
2892 if (r->stat_reading) {
|
|
511
|
2893 (void) ngx_atomic_fetch_add(ngx_stat_reading, -1);
|
|
0
|
2894 }
|
|
|
2895
|
|
|
2896 if (r->stat_writing) {
|
|
511
|
2897 (void) ngx_atomic_fetch_add(ngx_stat_writing, -1);
|
|
0
|
2898 }
|
|
116
|
2899
|
|
0
|
2900 #endif
|
|
|
2901
|
|
529
|
2902 if (rc > 0 && (r->headers_out.status == 0 || r->connection->sent == 0)) {
|
|
|
2903 r->headers_out.status = rc;
|
|
0
|
2904 }
|
|
|
2905
|
|
386
|
2906 log->action = "logging request";
|
|
|
2907
|
|
420
|
2908 ngx_http_log_request(r);
|
|
0
|
2909
|
|
386
|
2910 log->action = "closing request";
|
|
|
2911
|
|
0
|
2912 if (r->connection->timedout) {
|
|
|
2913 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
2914
|
|
|
2915 if (clcf->reset_timedout_connection) {
|
|
58
|
2916 linger.l_onoff = 1;
|
|
|
2917 linger.l_linger = 0;
|
|
0
|
2918
|
|
|
2919 if (setsockopt(r->connection->fd, SOL_SOCKET, SO_LINGER,
|
|
58
|
2920 (const void *) &linger, sizeof(struct linger)) == -1)
|
|
0
|
2921 {
|
|
|
2922 ngx_log_error(NGX_LOG_ALERT, log, ngx_socket_errno,
|
|
|
2923 "setsockopt(SO_LINGER) failed");
|
|
|
2924 }
|
|
|
2925 }
|
|
|
2926 }
|
|
|
2927
|
|
58
|
2928 /* the various request strings were allocated from r->pool */
|
|
0
|
2929 ctx = log->data;
|
|
10
|
2930 ctx->request = NULL;
|
|
0
|
2931
|
|
|
2932 r->request_line.len = 0;
|
|
|
2933
|
|
132
|
2934 r->connection->destroyed = 1;
|
|
|
2935
|
|
0
|
2936 ngx_destroy_pool(r->pool);
|
|
|
2937 }
|
|
|
2938
|
|
|
2939
|
|
80
|
2940 static void
|
|
420
|
2941 ngx_http_log_request(ngx_http_request_t *r)
|
|
|
2942 {
|
|
|
2943 ngx_uint_t i, n;
|
|
|
2944 ngx_http_handler_pt *log_handler;
|
|
|
2945 ngx_http_core_main_conf_t *cmcf;
|
|
|
2946
|
|
|
2947 cmcf = ngx_http_get_module_main_conf(r, ngx_http_core_module);
|
|
|
2948
|
|
|
2949 log_handler = cmcf->phases[NGX_HTTP_LOG_PHASE].handlers.elts;
|
|
|
2950 n = cmcf->phases[NGX_HTTP_LOG_PHASE].handlers.nelts;
|
|
|
2951
|
|
|
2952 for (i = 0; i < n; i++) {
|
|
|
2953 log_handler[i](r);
|
|
|
2954 }
|
|
|
2955 }
|
|
|
2956
|
|
|
2957
|
|
|
2958 static void
|
|
50
|
2959 ngx_http_close_connection(ngx_connection_t *c)
|
|
0
|
2960 {
|
|
28
|
2961 ngx_pool_t *pool;
|
|
|
2962
|
|
0
|
2963 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
|
2964 "close http connection: %d", c->fd);
|
|
|
2965
|
|
88
|
2966 #if (NGX_HTTP_SSL)
|
|
2
|
2967
|
|
|
2968 if (c->ssl) {
|
|
|
2969 if (ngx_ssl_shutdown(c) == NGX_AGAIN) {
|
|
126
|
2970 c->ssl->handler = ngx_http_close_connection;
|
|
2
|
2971 return;
|
|
|
2972 }
|
|
|
2973 }
|
|
|
2974
|
|
|
2975 #endif
|
|
|
2976
|
|
0
|
2977 #if (NGX_STAT_STUB)
|
|
511
|
2978 (void) ngx_atomic_fetch_add(ngx_stat_active, -1);
|
|
0
|
2979 #endif
|
|
|
2980
|
|
132
|
2981 c->destroyed = 1;
|
|
|
2982
|
|
28
|
2983 pool = c->pool;
|
|
|
2984
|
|
0
|
2985 ngx_close_connection(c);
|
|
28
|
2986
|
|
50
|
2987 ngx_destroy_pool(pool);
|
|
0
|
2988 }
|
|
|
2989
|
|
|
2990
|
|
50
|
2991 static u_char *
|
|
|
2992 ngx_http_log_error(ngx_log_t *log, u_char *buf, size_t len)
|
|
0
|
2993 {
|
|
32
|
2994 u_char *p;
|
|
54
|
2995 ngx_http_request_t *r;
|
|
32
|
2996 ngx_http_log_ctx_t *ctx;
|
|
10
|
2997
|
|
32
|
2998 if (log->action) {
|
|
58
|
2999 p = ngx_snprintf(buf, len, " while %s", log->action);
|
|
10
|
3000 len -= p - buf;
|
|
54
|
3001 buf = p;
|
|
10
|
3002 }
|
|
|
3003
|
|
58
|
3004 ctx = log->data;
|
|
|
3005
|
|
362
|
3006 p = ngx_snprintf(buf, len, ", client: %V", &ctx->connection->addr_text);
|
|
58
|
3007 len -= p - buf;
|
|
54
|
3008
|
|
|
3009 r = ctx->request;
|
|
|
3010
|
|
58
|
3011 if (r) {
|
|
214
|
3012 return r->log_handler(r, ctx->current_request, p, len);
|
|
362
|
3013
|
|
|
3014 } else {
|
|
|
3015 p = ngx_snprintf(p, len, ", server: %V",
|
|
|
3016 &ctx->connection->listening->addr_text);
|
|
0
|
3017 }
|
|
10
|
3018
|
|
58
|
3019 return p;
|
|
|
3020 }
|
|
|
3021
|
|
|
3022
|
|
|
3023 static u_char *
|
|
214
|
3024 ngx_http_log_error_handler(ngx_http_request_t *r, ngx_http_request_t *sr,
|
|
|
3025 u_char *buf, size_t len)
|
|
58
|
3026 {
|
|
362
|
3027 char *uri_separator;
|
|
|
3028 u_char *p;
|
|
|
3029 ngx_http_upstream_t *u;
|
|
|
3030 ngx_http_core_srv_conf_t *cscf;
|
|
|
3031
|
|
|
3032 cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
|
|
|
3033
|
|
|
3034 p = ngx_snprintf(buf, len, ", server: %V", &cscf->server_name);
|
|
|
3035 len -= p - buf;
|
|
|
3036 buf = p;
|
|
52
|
3037
|
|
348
|
3038 if (r->request_line.data == NULL && r->request_start) {
|
|
|
3039 for (p = r->request_start; p < r->header_in->last; p++) {
|
|
|
3040 if (*p == CR || *p == LF) {
|
|
|
3041 break;
|
|
|
3042 }
|
|
|
3043 }
|
|
|
3044
|
|
|
3045 r->request_line.len = p - r->request_start;
|
|
|
3046 r->request_line.data = r->request_start;
|
|
|
3047 }
|
|
|
3048
|
|
|
3049 if (r->request_line.len) {
|
|
|
3050 p = ngx_snprintf(buf, len, ", request: \"%V\"", &r->request_line);
|
|
54
|
3051 len -= p - buf;
|
|
|
3052 buf = p;
|
|
10
|
3053 }
|
|
|
3054
|
|
214
|
3055 if (r != sr) {
|
|
|
3056 p = ngx_snprintf(buf, len, ", subrequest: \"%V\"", &sr->uri);
|
|
|
3057 len -= p - buf;
|
|
|
3058 buf = p;
|
|
|
3059 }
|
|
|
3060
|
|
|
3061 u = sr->upstream;
|
|
|
3062
|
|
260
|
3063 if (u && u->peer.name) {
|
|
|
3064
|
|
|
3065 uri_separator = "";
|
|
|
3066
|
|
|
3067 #if (NGX_HAVE_UNIX_DOMAIN)
|
|
|
3068 if (u->peer.sockaddr && u->peer.sockaddr->sa_family == AF_UNIX) {
|
|
|
3069 uri_separator = ":";
|
|
|
3070 }
|
|
|
3071 #endif
|
|
214
|
3072
|
|
|
3073 p = ngx_snprintf(buf, len, ", upstream: \"%V%V%s%V\"",
|
|
348
|
3074 &u->schema, u->peer.name,
|
|
260
|
3075 uri_separator, &u->uri);
|
|
214
|
3076 len -= p - buf;
|
|
|
3077 buf = p;
|
|
|
3078 }
|
|
|
3079
|
|
54
|
3080 if (r->headers_in.host) {
|
|
|
3081 p = ngx_snprintf(buf, len, ", host: \"%V\"",
|
|
|
3082 &r->headers_in.host->value);
|
|
|
3083 len -= p - buf;
|
|
|
3084 buf = p;
|
|
|
3085 }
|
|
|
3086
|
|
|
3087 if (r->headers_in.referer) {
|
|
|
3088 p = ngx_snprintf(buf, len, ", referrer: \"%V\"",
|
|
|
3089 &r->headers_in.referer->value);
|
|
|
3090 buf = p;
|
|
|
3091 }
|
|
|
3092
|
|
|
3093 return buf;
|
|
|
3094 }
|
