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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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74
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39 static ngx_int_t ngx_http_set_write_handler(ngx_http_request_t *r);
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58
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40 static void ngx_http_writer(ngx_http_request_t *r);
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435
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41 static void ngx_http_request_finalizer(ngx_http_request_t *r);
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58
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42
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0
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43 static void ngx_http_set_keepalive(ngx_http_request_t *r);
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44 static void ngx_http_keepalive_handler(ngx_event_t *ev);
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45 static void ngx_http_set_lingering_close(ngx_http_request_t *r);
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46 static void ngx_http_lingering_close_handler(ngx_event_t *ev);
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162
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47 static ngx_int_t ngx_http_post_action(ngx_http_request_t *r);
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80
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48 static void ngx_http_close_request(ngx_http_request_t *r, ngx_int_t error);
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118
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49 static void ngx_http_request_done(ngx_http_request_t *r, ngx_int_t error);
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420
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50 static void ngx_http_log_request(ngx_http_request_t *r);
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80
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51 static void ngx_http_close_connection(ngx_connection_t *c);
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0
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52
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32
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53 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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54 static u_char *ngx_http_log_error_handler(ngx_http_request_t *r,
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55 ngx_http_request_t *sr, u_char *buf, size_t len);
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0
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56
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88
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57 #if (NGX_HTTP_SSL)
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58 static void ngx_http_ssl_handshake(ngx_event_t *rev);
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96
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59 static void ngx_http_ssl_handshake_handler(ngx_connection_t *c);
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88
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60 #endif
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61
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0
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62
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54
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63 static char *ngx_http_client_errors[] = {
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64
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65 /* NGX_HTTP_PARSE_INVALID_METHOD */
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66 "client sent invalid method",
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67
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68 /* NGX_HTTP_PARSE_INVALID_REQUEST */
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69 "client sent invalid request",
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70
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71 /* NGX_HTTP_PARSE_INVALID_09_METHOD */
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72 "client sent invalid method in HTTP/0.9 request"
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0
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73 };
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74
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75
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76 ngx_http_header_t ngx_http_headers_in[] = {
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406
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77 { ngx_string("Host"), offsetof(ngx_http_headers_in_t, host),
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78 ngx_http_process_host },
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79
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80 { ngx_string("Connection"), offsetof(ngx_http_headers_in_t, connection),
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81 ngx_http_process_connection },
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58
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82
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0
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83 { ngx_string("If-Modified-Since"),
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58
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84 offsetof(ngx_http_headers_in_t, if_modified_since),
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332
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85 ngx_http_process_unique_header_line },
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58
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86
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406
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87 { ngx_string("User-Agent"), offsetof(ngx_http_headers_in_t, user_agent),
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88 ngx_http_process_user_agent },
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58
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89
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90 { ngx_string("Referer"), offsetof(ngx_http_headers_in_t, referer),
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91 ngx_http_process_header_line },
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92
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0
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93 { ngx_string("Content-Length"),
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58
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94 offsetof(ngx_http_headers_in_t, content_length),
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72
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95 ngx_http_process_unique_header_line },
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58
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96
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28
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97 { ngx_string("Content-Type"),
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58
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98 offsetof(ngx_http_headers_in_t, content_type),
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99 ngx_http_process_header_line },
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100
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101 { ngx_string("Range"), offsetof(ngx_http_headers_in_t, range),
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102 ngx_http_process_header_line },
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103
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346
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104 { ngx_string("If-Range"),
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105 offsetof(ngx_http_headers_in_t, if_range),
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106 ngx_http_process_unique_header_line },
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107
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130
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108 { ngx_string("Transfer-Encoding"),
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109 offsetof(ngx_http_headers_in_t, transfer_encoding),
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110 ngx_http_process_header_line },
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111
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384
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112 { ngx_string("Expect"),
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113 offsetof(ngx_http_headers_in_t, expect),
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114 ngx_http_process_unique_header_line },
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115
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0
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116 #if (NGX_HTTP_GZIP)
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117 { ngx_string("Accept-Encoding"),
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58
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118 offsetof(ngx_http_headers_in_t, accept_encoding),
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119 ngx_http_process_header_line },
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120
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121 { ngx_string("Via"), offsetof(ngx_http_headers_in_t, via),
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122 ngx_http_process_header_line },
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0
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123 #endif
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124
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125 { ngx_string("Authorization"),
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58
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126 offsetof(ngx_http_headers_in_t, authorization),
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72
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127 ngx_http_process_unique_header_line },
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58
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128
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129 { ngx_string("Keep-Alive"), offsetof(ngx_http_headers_in_t, keep_alive),
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130 ngx_http_process_header_line },
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0
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131
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122
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132 #if (NGX_HTTP_PROXY || NGX_HTTP_REALIP)
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0
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133 { ngx_string("X-Forwarded-For"),
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58
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134 offsetof(ngx_http_headers_in_t, x_forwarded_for),
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135 ngx_http_process_header_line },
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0
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136 #endif
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28
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137
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122
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138 #if (NGX_HTTP_REALIP)
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139 { ngx_string("X-Real-IP"),
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140 offsetof(ngx_http_headers_in_t, x_real_ip),
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141 ngx_http_process_header_line },
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142 #endif
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143
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38
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144 #if (NGX_HTTP_HEADERS)
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58
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145 { ngx_string("Accept"), offsetof(ngx_http_headers_in_t, accept),
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146 ngx_http_process_header_line },
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147
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38
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148 { ngx_string("Accept-Language"),
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58
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149 offsetof(ngx_http_headers_in_t, accept_language),
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150 ngx_http_process_header_line },
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38
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151 #endif
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152
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186
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153 #if (NGX_HTTP_DAV)
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154 { ngx_string("Depth"), offsetof(ngx_http_headers_in_t, depth),
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155 ngx_http_process_header_line },
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156
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157 { ngx_string("Destination"), offsetof(ngx_http_headers_in_t, destination),
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158 ngx_http_process_header_line },
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230
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159
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276
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160 { ngx_string("Overwrite"), offsetof(ngx_http_headers_in_t, overwrite),
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161 ngx_http_process_header_line },
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162
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230
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163 { ngx_string("Date"), offsetof(ngx_http_headers_in_t, date),
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164 ngx_http_process_header_line },
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186
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165 #endif
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166
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58
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167 { ngx_string("Cookie"), 0, ngx_http_process_cookie },
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168
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169 { ngx_null_string, 0, NULL }
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0
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170 };
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171
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172
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50
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173 void
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174 ngx_http_init_connection(ngx_connection_t *c)
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0
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175 {
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176 ngx_event_t *rev;
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177 ngx_http_log_ctx_t *ctx;
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178
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50
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179 ctx = ngx_palloc(c->pool, sizeof(ngx_http_log_ctx_t));
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180 if (ctx == NULL) {
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0
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181 ngx_http_close_connection(c);
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182 return;
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183 }
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184
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362
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185 ctx->connection = c;
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10
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186 ctx->request = NULL;
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214
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187 ctx->current_request = NULL;
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32
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188
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189 c->log->connection = c->number;
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190 c->log->handler = ngx_http_log_error;
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0
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191 c->log->data = ctx;
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32
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192 c->log->action = "reading client request line";
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193
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0
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194 c->log_error = NGX_ERROR_INFO;
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195
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196 rev = c->read;
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58
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197 rev->handler = ngx_http_init_request;
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118
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198 c->write->handler = ngx_http_empty_handler;
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0
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199
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116
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200 #if (NGX_STAT_STUB)
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511
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201 (void) ngx_atomic_fetch_add(ngx_stat_reading, 1);
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116
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202 #endif
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203
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0
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204 if (rev->ready) {
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205 /* the deferred accept(), rtsig, aio, iocp */
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206
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160
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207 if (ngx_use_accept_mutex) {
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112
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208 ngx_post_event(rev, &ngx_posted_events);
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0
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209 return;
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210 }
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211
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212 ngx_http_init_request(rev);
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213 return;
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214 }
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215
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216 ngx_add_timer(rev, c->listening->post_accept_timeout);
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217
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439
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218 if (ngx_handle_read_event(rev, 0) != NGX_OK) {
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116
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219 #if (NGX_STAT_STUB)
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511
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220 (void) ngx_atomic_fetch_add(ngx_stat_reading, -1);
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116
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221 #endif
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0
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222 ngx_http_close_connection(c);
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223 return;
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224 }
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225 }
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226
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227
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190
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228 static void
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229 ngx_http_init_request(ngx_event_t *rev)
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0
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230 {
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298
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231 ngx_time_t *tp;
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122
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232 ngx_uint_t i;
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233 ngx_connection_t *c;
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234 ngx_http_request_t *r;
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457
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235 struct sockaddr_in *sin;
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236 ngx_http_port_t *port;
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237 ngx_http_in_addr_t *addr;
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122
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238 ngx_http_log_ctx_t *ctx;
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457
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239 ngx_http_addr_conf_t *addr_conf;
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122
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240 ngx_http_connection_t *hc;
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241 ngx_http_core_srv_conf_t *cscf;
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242 ngx_http_core_loc_conf_t *clcf;
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243 ngx_http_core_main_conf_t *cmcf;
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457
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244 #if (NGX_HAVE_INET6)
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245 struct sockaddr_in6 *sin6;
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246 ngx_http_in6_addr_t *addr6;
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247 #endif
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0
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248
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116
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249 #if (NGX_STAT_STUB)
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511
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250 (void) ngx_atomic_fetch_add(ngx_stat_reading, -1);
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116
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251 #endif
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252
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0
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253 c = rev->data;
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254
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255 if (rev->timedout) {
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256 ngx_log_error(NGX_LOG_INFO, c->log, NGX_ETIMEDOUT, "client timed out");
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257
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258 ngx_http_close_connection(c);
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259 return;
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260 }
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261
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505
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262 c->requests++;
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263
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0
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264 hc = c->data;
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265
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116
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266 if (hc == NULL) {
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50
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267 hc = ngx_pcalloc(c->pool, sizeof(ngx_http_connection_t));
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268 if (hc == NULL) {
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0
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269 ngx_http_close_connection(c);
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270 return;
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271 }
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272 }
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273
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274 r = hc->request;
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275
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276 if (r) {
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277 ngx_memzero(r, sizeof(ngx_http_request_t));
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278
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279 r->pipeline = hc->pipeline;
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280
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281 if (hc->nbusy) {
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282 r->header_in = hc->busy[0];
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283 }
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284
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285 } else {
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50
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286 r = ngx_pcalloc(c->pool, sizeof(ngx_http_request_t));
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287 if (r == NULL) {
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0
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288 ngx_http_close_connection(c);
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289 return;
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290 }
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291
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292 hc->request = r;
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293 }
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294
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295 c->data = r;
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296 r->http_connection = hc;
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297
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298 c->sent = 0;
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299 r->signature = NGX_HTTP_MODULE;
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300
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301 /* find the server configuration for the address:port */
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302
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457
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303 port = c->listening->servers;
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304
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362
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305 r->connection = c;
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306
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457
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307 if (port->naddrs > 1) {
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0
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308
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309 /*
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457
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310 * there are several addresses on this port and one of them
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311 * is an "*:port" wildcard so getsockname() in ngx_http_server_addr()
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312 * is required to determine a server address
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0
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313 */
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314
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501
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315 if (ngx_connection_local_sockaddr(c, NULL, 0) != NGX_OK) {
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457
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316 ngx_http_close_connection(c);
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317 return;
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318 }
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319
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320 switch (c->local_sockaddr->sa_family) {
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321
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322 #if (NGX_HAVE_INET6)
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323 case AF_INET6:
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324 sin6 = (struct sockaddr_in6 *) c->local_sockaddr;
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325
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501
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326 addr6 = port->addrs;
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457
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327
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328 /* the last address is "*" */
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329
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330 for (i = 0; i < port->naddrs - 1; i++) {
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331 if (ngx_memcmp(&addr6[i].addr6, &sin6->sin6_addr, 16) == 0) {
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332 break;
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333 }
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334 }
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335
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336 addr_conf = &addr6[i].conf;
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337
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338 break;
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0
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339 #endif
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457
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340
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341 default: /* AF_INET */
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342 sin = (struct sockaddr_in *) c->local_sockaddr;
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343
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344 addr = port->addrs;
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345
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346 /* the last address is "*" */
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347
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348 for (i = 0; i < port->naddrs - 1; i++) {
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349 if (addr[i].addr == sin->sin_addr.s_addr) {
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350 break;
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351 }
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0
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352 }
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457
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353
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354 addr_conf = &addr[i].conf;
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355
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356 break;
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0
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357 }
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358
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359 } else {
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457
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360
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361 switch (c->local_sockaddr->sa_family) {
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362
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|
|
363 #if (NGX_HAVE_INET6)
|
|
|
364 case AF_INET6:
|
|
501
|
365 addr6 = port->addrs;
|
|
457
|
366 addr_conf = &addr6[0].conf;
|
|
|
367 break;
|
|
|
368 #endif
|
|
|
369
|
|
|
370 default: /* AF_INET */
|
|
|
371 addr = port->addrs;
|
|
|
372 addr_conf = &addr[0].conf;
|
|
|
373 break;
|
|
|
374 }
|
|
0
|
375 }
|
|
|
376
|
|
487
|
377 r->virtual_names = addr_conf->virtual_names;
|
|
|
378
|
|
0
|
379 /* the default server configuration for the address:port */
|
|
457
|
380 cscf = addr_conf->core_srv_conf;
|
|
0
|
381
|
|
|
382 r->main_conf = cscf->ctx->main_conf;
|
|
|
383 r->srv_conf = cscf->ctx->srv_conf;
|
|
|
384 r->loc_conf = cscf->ctx->loc_conf;
|
|
|
385
|
|
58
|
386 rev->handler = ngx_http_process_request_line;
|
|
0
|
387
|
|
|
388 #if (NGX_HTTP_SSL)
|
|
|
389
|
|
356
|
390 {
|
|
|
391 ngx_http_ssl_srv_conf_t *sscf;
|
|
|
392
|
|
0
|
393 sscf = ngx_http_get_module_srv_conf(r, ngx_http_ssl_module);
|
|
457
|
394 if (sscf->enable || addr_conf->ssl) {
|
|
0
|
395
|
|
|
396 if (c->ssl == NULL) {
|
|
410
|
397
|
|
|
398 c->log->action = "SSL handshaking";
|
|
|
399
|
|
457
|
400 if (addr_conf->ssl && sscf->ssl.ctx == NULL) {
|
|
410
|
401 ngx_log_error(NGX_LOG_ERR, c->log, 0,
|
|
|
402 "no \"ssl_certificate\" is defined "
|
|
|
403 "in server listening on SSL port");
|
|
|
404 ngx_http_close_connection(c);
|
|
|
405 return;
|
|
|
406 }
|
|
|
407
|
|
96
|
408 if (ngx_ssl_create_connection(&sscf->ssl, c, NGX_SSL_BUFFER)
|
|
463
|
409 != NGX_OK)
|
|
0
|
410 {
|
|
|
411 ngx_http_close_connection(c);
|
|
|
412 return;
|
|
|
413 }
|
|
|
414
|
|
58
|
415 rev->handler = ngx_http_ssl_handshake;
|
|
0
|
416 }
|
|
|
417
|
|
62
|
418 r->main_filter_need_in_memory = 1;
|
|
0
|
419 }
|
|
356
|
420 }
|
|
0
|
421
|
|
|
422 #endif
|
|
|
423
|
|
|
424 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
493
|
425 c->log->file = clcf->error_log->file;
|
|
0
|
426 if (!(c->log->log_level & NGX_LOG_DEBUG_CONNECTION)) {
|
|
493
|
427 c->log->log_level = clcf->error_log->log_level;
|
|
0
|
428 }
|
|
|
429
|
|
|
430 if (c->buffer == NULL) {
|
|
|
431 c->buffer = ngx_create_temp_buf(c->pool,
|
|
|
432 cscf->client_header_buffer_size);
|
|
|
433 if (c->buffer == NULL) {
|
|
|
434 ngx_http_close_connection(c);
|
|
|
435 return;
|
|
|
436 }
|
|
|
437 }
|
|
|
438
|
|
|
439 if (r->header_in == NULL) {
|
|
|
440 r->header_in = c->buffer;
|
|
|
441 }
|
|
|
442
|
|
50
|
443 r->pool = ngx_create_pool(cscf->request_pool_size, c->log);
|
|
|
444 if (r->pool == NULL) {
|
|
0
|
445 ngx_http_close_connection(c);
|
|
|
446 return;
|
|
|
447 }
|
|
|
448
|
|
|
449
|
|
|
450 if (ngx_list_init(&r->headers_out.headers, r->pool, 20,
|
|
130
|
451 sizeof(ngx_table_elt_t))
|
|
463
|
452 != NGX_OK)
|
|
0
|
453 {
|
|
505
|
454 ngx_destroy_pool(r->pool);
|
|
|
455 ngx_http_close_connection(c);
|
|
0
|
456 return;
|
|
|
457 }
|
|
|
458
|
|
|
459 r->ctx = ngx_pcalloc(r->pool, sizeof(void *) * ngx_http_max_module);
|
|
|
460 if (r->ctx == NULL) {
|
|
505
|
461 ngx_destroy_pool(r->pool);
|
|
|
462 ngx_http_close_connection(c);
|
|
0
|
463 return;
|
|
|
464 }
|
|
|
465
|
|
122
|
466 cmcf = ngx_http_get_module_main_conf(r, ngx_http_core_module);
|
|
|
467
|
|
|
468 r->variables = ngx_pcalloc(r->pool, cmcf->variables.nelts
|
|
|
469 * sizeof(ngx_http_variable_value_t));
|
|
|
470 if (r->variables == NULL) {
|
|
505
|
471 ngx_destroy_pool(r->pool);
|
|
|
472 ngx_http_close_connection(c);
|
|
122
|
473 return;
|
|
|
474 }
|
|
|
475
|
|
0
|
476 c->single_connection = 1;
|
|
132
|
477 c->destroyed = 0;
|
|
|
478
|
|
102
|
479 r->main = r;
|
|
|
480
|
|
298
|
481 tp = ngx_timeofday();
|
|
|
482 r->start_sec = tp->sec;
|
|
|
483 r->start_msec = tp->msec;
|
|
46
|
484
|
|
180
|
485 r->method = NGX_HTTP_UNKNOWN;
|
|
|
486
|
|
0
|
487 r->headers_in.content_length_n = -1;
|
|
|
488 r->headers_in.keep_alive_n = -1;
|
|
|
489 r->headers_out.content_length_n = -1;
|
|
|
490 r->headers_out.last_modified_time = -1;
|
|
|
491
|
|
226
|
492 r->uri_changes = NGX_HTTP_MAX_URI_CHANGES + 1;
|
|
|
493 r->subrequests = NGX_HTTP_MAX_SUBREQUESTS + 1;
|
|
|
494
|
|
0
|
495 r->http_state = NGX_HTTP_READING_REQUEST_STATE;
|
|
|
496
|
|
54
|
497 ctx = c->log->data;
|
|
|
498 ctx->request = r;
|
|
214
|
499 ctx->current_request = r;
|
|
58
|
500 r->log_handler = ngx_http_log_error_handler;
|
|
54
|
501
|
|
0
|
502 #if (NGX_STAT_STUB)
|
|
511
|
503 (void) ngx_atomic_fetch_add(ngx_stat_reading, 1);
|
|
26
|
504 r->stat_reading = 1;
|
|
511
|
505 (void) ngx_atomic_fetch_add(ngx_stat_requests, 1);
|
|
0
|
506 #endif
|
|
|
507
|
|
58
|
508 rev->handler(rev);
|
|
0
|
509 }
|
|
|
510
|
|
|
511
|
|
|
512 #if (NGX_HTTP_SSL)
|
|
|
513
|
|
50
|
514 static void
|
|
|
515 ngx_http_ssl_handshake(ngx_event_t *rev)
|
|
0
|
516 {
|
|
10
|
517 u_char buf[1];
|
|
|
518 ssize_t n;
|
|
0
|
519 ngx_int_t rc;
|
|
|
520 ngx_connection_t *c;
|
|
|
521 ngx_http_request_t *r;
|
|
|
522
|
|
|
523 c = rev->data;
|
|
|
524 r = c->data;
|
|
|
525
|
|
|
526 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, rev->log, 0,
|
|
|
527 "http check ssl handshake");
|
|
|
528
|
|
|
529 if (rev->timedout) {
|
|
54
|
530 ngx_log_error(NGX_LOG_INFO, c->log, NGX_ETIMEDOUT, "client timed out");
|
|
|
531 c->timedout = 1;
|
|
|
532 ngx_http_close_request(r, NGX_HTTP_REQUEST_TIME_OUT);
|
|
0
|
533 return;
|
|
|
534 }
|
|
|
535
|
|
132
|
536 n = recv(c->fd, (char *) buf, 1, MSG_PEEK);
|
|
0
|
537
|
|
|
538 if (n == -1 && ngx_socket_errno == NGX_EAGAIN) {
|
|
364
|
539
|
|
|
540 if (!rev->timer_set) {
|
|
|
541 ngx_add_timer(rev, c->listening->post_accept_timeout);
|
|
|
542 }
|
|
|
543
|
|
439
|
544 if (ngx_handle_read_event(rev, 0) != NGX_OK) {
|
|
364
|
545 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
546 }
|
|
|
547
|
|
0
|
548 return;
|
|
|
549 }
|
|
|
550
|
|
|
551 if (n == 1) {
|
|
|
552 if (buf[0] == 0x80 /* SSLv2 */ || buf[0] == 0x16 /* SSLv3/TLSv1 */) {
|
|
|
553 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, rev->log, 0,
|
|
10
|
554 "https ssl handshake: 0x%02Xd", buf[0]);
|
|
0
|
555
|
|
|
556 rc = ngx_ssl_handshake(c);
|
|
|
557
|
|
96
|
558 if (rc == NGX_AGAIN) {
|
|
362
|
559
|
|
|
560 if (!rev->timer_set) {
|
|
|
561 ngx_add_timer(rev, c->listening->post_accept_timeout);
|
|
|
562 }
|
|
|
563
|
|
96
|
564 c->ssl->handler = ngx_http_ssl_handshake_handler;
|
|
0
|
565 return;
|
|
|
566 }
|
|
|
567
|
|
96
|
568 ngx_http_ssl_handshake_handler(c);
|
|
|
569
|
|
|
570 return;
|
|
0
|
571
|
|
|
572 } else {
|
|
|
573 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, rev->log, 0,
|
|
|
574 "plain http");
|
|
|
575
|
|
|
576 r->plain_http = 1;
|
|
|
577 }
|
|
|
578 }
|
|
|
579
|
|
410
|
580 c->log->action = "reading client request line";
|
|
|
581
|
|
58
|
582 rev->handler = ngx_http_process_request_line;
|
|
0
|
583 ngx_http_process_request_line(rev);
|
|
|
584 }
|
|
|
585
|
|
96
|
586
|
|
|
587 static void
|
|
|
588 ngx_http_ssl_handshake_handler(ngx_connection_t *c)
|
|
|
589 {
|
|
|
590 ngx_http_request_t *r;
|
|
|
591
|
|
|
592 if (c->ssl->handshaked) {
|
|
|
593
|
|
|
594 /*
|
|
|
595 * The majority of browsers do not send the "close notify" alert.
|
|
|
596 * Among them are MSIE, old Mozilla, Netscape 4, Konqueror,
|
|
|
597 * and Links. And what is more, MSIE ignores the server's alert.
|
|
|
598 *
|
|
|
599 * Opera and recent Mozilla send the alert.
|
|
|
600 */
|
|
|
601
|
|
|
602 c->ssl->no_wait_shutdown = 1;
|
|
|
603
|
|
|
604 c->read->handler = ngx_http_process_request_line;
|
|
|
605 /* STUB: epoll edge */ c->write->handler = ngx_http_empty_handler;
|
|
|
606
|
|
|
607 ngx_http_process_request_line(c->read);
|
|
|
608
|
|
|
609 return;
|
|
|
610 }
|
|
|
611
|
|
|
612 r = c->data;
|
|
|
613
|
|
|
614 ngx_http_close_request(r, NGX_HTTP_BAD_REQUEST);
|
|
|
615
|
|
|
616 return;
|
|
|
617 }
|
|
|
618
|
|
306
|
619 #ifdef SSL_CTRL_SET_TLSEXT_HOSTNAME
|
|
|
620
|
|
|
621 int
|
|
|
622 ngx_http_ssl_servername(ngx_ssl_conn_t *ssl_conn, int *ad, void *arg)
|
|
|
623 {
|
|
406
|
624 size_t len;
|
|
306
|
625 const char *servername;
|
|
|
626 ngx_connection_t *c;
|
|
|
627 ngx_http_request_t *r;
|
|
|
628 ngx_http_ssl_srv_conf_t *sscf;
|
|
|
629
|
|
|
630 servername = SSL_get_servername(ssl_conn, TLSEXT_NAMETYPE_host_name);
|
|
|
631
|
|
|
632 if (servername == NULL) {
|
|
|
633 return SSL_TLSEXT_ERR_NOACK;
|
|
|
634 }
|
|
|
635
|
|
|
636 c = ngx_ssl_get_connection(ssl_conn);
|
|
|
637
|
|
|
638 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
|
639 "SSL server name: \"%s\"", servername);
|
|
|
640
|
|
406
|
641 len = ngx_strlen(servername);
|
|
|
642
|
|
|
643 if (len == 0) {
|
|
|
644 return SSL_TLSEXT_ERR_NOACK;
|
|
|
645 }
|
|
|
646
|
|
306
|
647 r = c->data;
|
|
|
648
|
|
406
|
649 if (ngx_http_find_virtual_server(r, (u_char *) servername, len) != NGX_OK) {
|
|
306
|
650 return SSL_TLSEXT_ERR_NOACK;
|
|
|
651 }
|
|
|
652
|
|
|
653 sscf = ngx_http_get_module_srv_conf(r, ngx_http_ssl_module);
|
|
|
654
|
|
|
655 SSL_set_SSL_CTX(ssl_conn, sscf->ssl.ctx);
|
|
|
656
|
|
|
657 return SSL_TLSEXT_ERR_OK;
|
|
|
658 }
|
|
|
659
|
|
|
660 #endif
|
|
96
|
661
|
|
0
|
662 #endif
|
|
|
663
|
|
|
664
|
|
50
|
665 static void
|
|
|
666 ngx_http_process_request_line(ngx_event_t *rev)
|
|
0
|
667 {
|
|
342
|
668 ssize_t n;
|
|
|
669 ngx_int_t rc, rv;
|
|
|
670 ngx_connection_t *c;
|
|
|
671 ngx_http_request_t *r;
|
|
|
672 ngx_http_core_srv_conf_t *cscf;
|
|
0
|
673
|
|
|
674 c = rev->data;
|
|
|
675 r = c->data;
|
|
|
676
|
|
|
677 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, rev->log, 0,
|
|
|
678 "http process request line");
|
|
|
679
|
|
|
680 if (rev->timedout) {
|
|
54
|
681 ngx_log_error(NGX_LOG_INFO, c->log, NGX_ETIMEDOUT, "client timed out");
|
|
|
682 c->timedout = 1;
|
|
|
683 ngx_http_close_request(r, NGX_HTTP_REQUEST_TIME_OUT);
|
|
0
|
684 return;
|
|
|
685 }
|
|
|
686
|
|
|
687 rc = NGX_AGAIN;
|
|
|
688
|
|
|
689 for ( ;; ) {
|
|
|
690
|
|
|
691 if (rc == NGX_AGAIN) {
|
|
|
692 n = ngx_http_read_request_header(r);
|
|
|
693
|
|
|
694 if (n == NGX_AGAIN || n == NGX_ERROR) {
|
|
|
695 return;
|
|
|
696 }
|
|
|
697 }
|
|
|
698
|
|
|
699 rc = ngx_http_parse_request_line(r, r->header_in);
|
|
|
700
|
|
|
701 if (rc == NGX_OK) {
|
|
|
702
|
|
|
703 /* the request line has been parsed successfully */
|
|
|
704
|
|
10
|
705 r->request_line.len = r->request_end - r->request_start;
|
|
|
706 r->request_line.data = r->request_start;
|
|
|
707
|
|
0
|
708
|
|
|
709 if (r->args_start) {
|
|
|
710 r->uri.len = r->args_start - 1 - r->uri_start;
|
|
|
711 } else {
|
|
|
712 r->uri.len = r->uri_end - r->uri_start;
|
|
|
713 }
|
|
|
714
|
|
18
|
715
|
|
2
|
716 if (r->complex_uri || r->quoted_uri) {
|
|
10
|
717
|
|
382
|
718 r->uri.data = ngx_pnalloc(r->pool, r->uri.len + 1);
|
|
50
|
719 if (r->uri.data == NULL) {
|
|
10
|
720 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
721 return;
|
|
|
722 }
|
|
|
723
|
|
342
|
724 cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
|
|
|
725
|
|
|
726 rc = ngx_http_parse_complex_uri(r, cscf->merge_slashes);
|
|
0
|
727
|
|
54
|
728 if (rc == NGX_HTTP_PARSE_INVALID_REQUEST) {
|
|
|
729 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
|
730 "client sent invalid request");
|
|
|
731 ngx_http_finalize_request(r, NGX_HTTP_BAD_REQUEST);
|
|
0
|
732 return;
|
|
|
733 }
|
|
|
734
|
|
|
735 } else {
|
|
10
|
736 r->uri.data = r->uri_start;
|
|
0
|
737 }
|
|
|
738
|
|
18
|
739
|
|
10
|
740 r->unparsed_uri.len = r->uri_end - r->uri_start;
|
|
|
741 r->unparsed_uri.data = r->uri_start;
|
|
|
742
|
|
0
|
743
|
|
58
|
744 r->method_name.len = r->method_end - r->request_start + 1;
|
|
|
745 r->method_name.data = r->request_line.data;
|
|
0
|
746
|
|
10
|
747
|
|
28
|
748 if (r->http_protocol.data) {
|
|
|
749 r->http_protocol.len = r->request_end - r->http_protocol.data;
|
|
|
750 }
|
|
|
751
|
|
|
752
|
|
0
|
753 if (r->uri_ext) {
|
|
|
754 if (r->args_start) {
|
|
|
755 r->exten.len = r->args_start - 1 - r->uri_ext;
|
|
|
756 } else {
|
|
|
757 r->exten.len = r->uri_end - r->uri_ext;
|
|
|
758 }
|
|
|
759
|
|
10
|
760 r->exten.data = r->uri_ext;
|
|
0
|
761 }
|
|
|
762
|
|
10
|
763
|
|
0
|
764 if (r->args_start && r->uri_end > r->args_start) {
|
|
|
765 r->args.len = r->uri_end - r->args_start;
|
|
10
|
766 r->args.data = r->args_start;
|
|
0
|
767 }
|
|
|
768
|
|
518
|
769 #if (NGX_WIN32)
|
|
|
770 {
|
|
|
771 u_char *p;
|
|
|
772
|
|
|
773 p = r->uri.data + r->uri.len - 1;
|
|
|
774
|
|
|
775 if (*p == '.') {
|
|
|
776
|
|
|
777 while (--p > r->uri.data && *p == '.') { /* void */ }
|
|
|
778
|
|
|
779 r->uri.len = p + 1 - r->uri.data;
|
|
|
780
|
|
|
781 ngx_http_set_exten(r);
|
|
|
782 }
|
|
|
783 }
|
|
|
784 #endif
|
|
10
|
785
|
|
|
786 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
|
787 "http request line: \"%V\"", &r->request_line);
|
|
|
788
|
|
0
|
789 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
10
|
790 "http uri: \"%V\"", &r->uri);
|
|
0
|
791
|
|
|
792 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
10
|
793 "http args: \"%V\"", &r->args);
|
|
0
|
794
|
|
|
795 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
10
|
796 "http exten: \"%V\"", &r->exten);
|
|
|
797
|
|
376
|
798 if (r->host_start && r->host_end) {
|
|
|
799 n = ngx_http_validate_host(r->host_start,
|
|
|
800 r->host_end - r->host_start);
|
|
|
801
|
|
|
802 if (n <= 0) {
|
|
|
803 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
|
804 "client sent invalid host in request line");
|
|
|
805 ngx_http_finalize_request(r, NGX_HTTP_BAD_REQUEST);
|
|
|
806 return;
|
|
|
807 }
|
|
|
808
|
|
|
809 r->headers_in.server.len = n;
|
|
|
810 r->headers_in.server.data = r->host_start;
|
|
|
811 }
|
|
|
812
|
|
0
|
813 if (r->http_version < NGX_HTTP_VERSION_10) {
|
|
376
|
814
|
|
|
815 if (ngx_http_find_virtual_server(r, r->headers_in.server.data,
|
|
|
816 r->headers_in.server.len)
|
|
|
817 == NGX_ERROR)
|
|
|
818 {
|
|
|
819 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
820 return;
|
|
|
821 }
|
|
|
822
|
|
308
|
823 ngx_http_process_request(r);
|
|
0
|
824 return;
|
|
|
825 }
|
|
|
826
|
|
|
827
|
|
|
828 if (ngx_list_init(&r->headers_in.headers, r->pool, 20,
|
|
130
|
829 sizeof(ngx_table_elt_t))
|
|
463
|
830 != NGX_OK)
|
|
0
|
831 {
|
|
|
832 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
833 return;
|
|
|
834 }
|
|
|
835
|
|
|
836
|
|
48
|
837 if (ngx_array_init(&r->headers_in.cookies, r->pool, 2,
|
|
130
|
838 sizeof(ngx_table_elt_t *))
|
|
463
|
839 != NGX_OK)
|
|
0
|
840 {
|
|
|
841 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
842 return;
|
|
|
843 }
|
|
|
844
|
|
32
|
845 c->log->action = "reading client request headers";
|
|
0
|
846
|
|
58
|
847 rev->handler = ngx_http_process_request_headers;
|
|
0
|
848 ngx_http_process_request_headers(rev);
|
|
|
849
|
|
|
850 return;
|
|
54
|
851 }
|
|
|
852
|
|
|
853 if (rc != NGX_AGAIN) {
|
|
0
|
854
|
|
|
855 /* there was error while a request line parsing */
|
|
|
856
|
|
54
|
857 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
|
858 ngx_http_client_errors[rc - NGX_HTTP_CLIENT_ERROR]);
|
|
|
859 ngx_http_finalize_request(r, NGX_HTTP_BAD_REQUEST);
|
|
0
|
860 return;
|
|
|
861 }
|
|
|
862
|
|
|
863 /* NGX_AGAIN: a request line parsing is still incomplete */
|
|
|
864
|
|
|
865 if (r->header_in->pos == r->header_in->end) {
|
|
|
866
|
|
|
867 rv = ngx_http_alloc_large_header_buffer(r, 1);
|
|
|
868
|
|
|
869 if (rv == NGX_ERROR) {
|
|
|
870 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
871 return;
|
|
|
872 }
|
|
|
873
|
|
|
874 if (rv == NGX_DECLINED) {
|
|
54
|
875 r->request_line.len = r->header_in->end - r->request_start;
|
|
|
876 r->request_line.data = r->request_start;
|
|
|
877
|
|
|
878 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
|
879 "client sent too long URI");
|
|
|
880 ngx_http_finalize_request(r, NGX_HTTP_REQUEST_URI_TOO_LARGE);
|
|
0
|
881 return;
|
|
|
882 }
|
|
|
883 }
|
|
|
884 }
|
|
|
885 }
|
|
|
886
|
|
|
887
|
|
50
|
888 static void
|
|
|
889 ngx_http_process_request_headers(ngx_event_t *rev)
|
|
0
|
890 {
|
|
56
|
891 ssize_t n;
|
|
|
892 ngx_int_t rc, rv;
|
|
|
893 ngx_str_t header;
|
|
58
|
894 ngx_table_elt_t *h;
|
|
56
|
895 ngx_connection_t *c;
|
|
|
896 ngx_http_header_t *hh;
|
|
|
897 ngx_http_request_t *r;
|
|
60
|
898 ngx_http_core_srv_conf_t *cscf;
|
|
56
|
899 ngx_http_core_main_conf_t *cmcf;
|
|
0
|
900
|
|
|
901 c = rev->data;
|
|
|
902 r = c->data;
|
|
|
903
|
|
|
904 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, rev->log, 0,
|
|
|
905 "http process request header line");
|
|
|
906
|
|
|
907 if (rev->timedout) {
|
|
54
|
908 ngx_log_error(NGX_LOG_INFO, c->log, NGX_ETIMEDOUT, "client timed out");
|
|
|
909 c->timedout = 1;
|
|
|
910 ngx_http_close_request(r, NGX_HTTP_REQUEST_TIME_OUT);
|
|
0
|
911 return;
|
|
|
912 }
|
|
|
913
|
|
56
|
914 cmcf = ngx_http_get_module_main_conf(r, ngx_http_core_module);
|
|
60
|
915 cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
|
|
56
|
916
|
|
0
|
917 rc = NGX_AGAIN;
|
|
|
918
|
|
|
919 for ( ;; ) {
|
|
|
920
|
|
|
921 if (rc == NGX_AGAIN) {
|
|
|
922
|
|
|
923 if (r->header_in->pos == r->header_in->end) {
|
|
|
924
|
|
|
925 rv = ngx_http_alloc_large_header_buffer(r, 0);
|
|
|
926
|
|
|
927 if (rv == NGX_ERROR) {
|
|
|
928 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
929 return;
|
|
|
930 }
|
|
|
931
|
|
|
932 if (rv == NGX_DECLINED) {
|
|
54
|
933 header.len = r->header_in->end - r->header_name_start;
|
|
|
934 header.data = r->header_name_start;
|
|
80
|
935
|
|
|
936 if (header.len > NGX_MAX_ERROR_STR - 300) {
|
|
|
937 header.len = NGX_MAX_ERROR_STR - 300;
|
|
|
938 header.data[header.len++] = '.';
|
|
|
939 header.data[header.len++] = '.';
|
|
|
940 header.data[header.len++] = '.';
|
|
|
941 }
|
|
|
942
|
|
54
|
943 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
|
944 "client sent too long header line: \"%V\"",
|
|
|
945 &header);
|
|
330
|
946 ngx_http_finalize_request(r, NGX_HTTP_BAD_REQUEST);
|
|
0
|
947 return;
|
|
|
948 }
|
|
|
949 }
|
|
|
950
|
|
|
951 n = ngx_http_read_request_header(r);
|
|
|
952
|
|
|
953 if (n == NGX_AGAIN || n == NGX_ERROR) {
|
|
|
954 return;
|
|
|
955 }
|
|
|
956 }
|
|
|
957
|
|
420
|
958 rc = ngx_http_parse_header_line(r, r->header_in,
|
|
|
959 cscf->underscores_in_headers);
|
|
0
|
960
|
|
|
961 if (rc == NGX_OK) {
|
|
|
962
|
|
60
|
963 if (r->invalid_header && cscf->ignore_invalid_headers) {
|
|
52
|
964
|
|
|
965 /* there was error while a header line parsing */
|
|
|
966
|
|
|
967 header.len = r->header_end - r->header_name_start;
|
|
|
968 header.data = r->header_name_start;
|
|
|
969
|
|
54
|
970 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
|
971 "client sent invalid header line: \"%V\"",
|
|
52
|
972 &header);
|
|
|
973 continue;
|
|
|
974 }
|
|
|
975
|
|
0
|
976 /* a header line has been parsed successfully */
|
|
|
977
|
|
50
|
978 h = ngx_list_push(&r->headers_in.headers);
|
|
|
979 if (h == NULL) {
|
|
0
|
980 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
981 return;
|
|
|
982 }
|
|
|
983
|
|
56
|
984 h->hash = r->header_hash;
|
|
|
985
|
|
0
|
986 h->key.len = r->header_name_end - r->header_name_start;
|
|
|
987 h->key.data = r->header_name_start;
|
|
|
988 h->key.data[h->key.len] = '\0';
|
|
|
989
|
|
|
990 h->value.len = r->header_end - r->header_start;
|
|
|
991 h->value.data = r->header_start;
|
|
|
992 h->value.data[h->value.len] = '\0';
|
|
|
993
|
|
382
|
994 h->lowcase_key = ngx_pnalloc(r->pool, h->key.len);
|
|
198
|
995 if (h->lowcase_key == NULL) {
|
|
|
996 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
997 return;
|
|
|
998 }
|
|
|
999
|
|
|
1000 if (h->key.len == r->lowcase_index) {
|
|
|
1001 ngx_memcpy(h->lowcase_key, r->lowcase_header, h->key.len);
|
|
|
1002
|
|
|
1003 } else {
|
|
394
|
1004 ngx_strlow(h->lowcase_key, h->key.data, h->key.len);
|
|
0
|
1005 }
|
|
|
1006
|
|
198
|
1007 hh = ngx_hash_find(&cmcf->headers_in_hash, h->hash,
|
|
|
1008 h->lowcase_key, h->key.len);
|
|
|
1009
|
|
|
1010 if (hh && hh->handler(r, h, hh->offset) != NGX_OK) {
|
|
|
1011 return;
|
|
|
1012 }
|
|
|
1013
|
|
0
|
1014 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
10
|
1015 "http header: \"%V: %V\"",
|
|
|
1016 &h->key, &h->value);
|
|
0
|
1017
|
|
|
1018 continue;
|
|
54
|
1019 }
|
|
|
1020
|
|
|
1021 if (rc == NGX_HTTP_PARSE_HEADER_DONE) {
|
|
0
|
1022
|
|
|
1023 /* a whole header has been parsed successfully */
|
|
|
1024
|
|
|
1025 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1026 "http header done");
|
|
|
1027
|
|
24
|
1028 r->request_length += r->header_in->pos - r->header_in->start;
|
|
|
1029
|
|
0
|
1030 r->http_state = NGX_HTTP_PROCESS_REQUEST_STATE;
|
|
|
1031
|
|
|
1032 rc = ngx_http_process_request_header(r);
|
|
|
1033
|
|
|
1034 if (rc != NGX_OK) {
|
|
|
1035 return;
|
|
|
1036 }
|
|
|
1037
|
|
308
|
1038 ngx_http_process_request(r);
|
|
86
|
1039
|
|
0
|
1040 return;
|
|
54
|
1041 }
|
|
|
1042
|
|
|
1043 if (rc == NGX_AGAIN) {
|
|
|
1044
|
|
|
1045 /* a header line parsing is still not complete */
|
|
|
1046
|
|
|
1047 continue;
|
|
0
|
1048 }
|
|
|
1049
|
|
54
|
1050 /* rc == NGX_HTTP_PARSE_INVALID_HEADER: "\r" is not followed by "\n" */
|
|
|
1051
|
|
|
1052 header.len = r->header_end - r->header_name_start;
|
|
|
1053 header.data = r->header_name_start;
|
|
|
1054 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
|
1055 "client sent invalid header line: \"%V\\r...\"",
|
|
|
1056 &header);
|
|
330
|
1057 ngx_http_finalize_request(r, NGX_HTTP_BAD_REQUEST);
|
|
54
|
1058 return;
|
|
0
|
1059 }
|
|
|
1060 }
|
|
|
1061
|
|
|
1062
|
|
50
|
1063 static ssize_t
|
|
|
1064 ngx_http_read_request_header(ngx_http_request_t *r)
|
|
0
|
1065 {
|
|
|
1066 ssize_t n;
|
|
|
1067 ngx_event_t *rev;
|
|
230
|
1068 ngx_connection_t *c;
|
|
0
|
1069 ngx_http_core_srv_conf_t *cscf;
|
|
|
1070
|
|
230
|
1071 c = r->connection;
|
|
|
1072 rev = c->read;
|
|
0
|
1073
|
|
|
1074 n = r->header_in->last - r->header_in->pos;
|
|
|
1075
|
|
|
1076 if (n > 0) {
|
|
|
1077 return n;
|
|
|
1078 }
|
|
|
1079
|
|
72
|
1080 if (rev->ready) {
|
|
230
|
1081 n = c->recv(c, r->header_in->last,
|
|
|
1082 r->header_in->end - r->header_in->last);
|
|
72
|
1083 } else {
|
|
|
1084 n = NGX_AGAIN;
|
|
0
|
1085 }
|
|
|
1086
|
|
|
1087 if (n == NGX_AGAIN) {
|
|
364
|
1088 if (!rev->timer_set) {
|
|
0
|
1089 cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
|
|
|
1090 ngx_add_timer(rev, cscf->client_header_timeout);
|
|
|
1091 }
|
|
|
1092
|
|
439
|
1093 if (ngx_handle_read_event(rev, 0) != NGX_OK) {
|
|
0
|
1094 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
1095 return NGX_ERROR;
|
|
|
1096 }
|
|
|
1097
|
|
|
1098 return NGX_AGAIN;
|
|
|
1099 }
|
|
|
1100
|
|
|
1101 if (n == 0) {
|
|
230
|
1102 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
0
|
1103 "client closed prematurely connection");
|
|
|
1104 }
|
|
|
1105
|
|
|
1106 if (n == 0 || n == NGX_ERROR) {
|
|
272
|
1107 c->error = 1;
|
|
|
1108 c->log->action = "reading client request headers";
|
|
|
1109
|
|
|
1110 ngx_http_finalize_request(r, NGX_HTTP_BAD_REQUEST);
|
|
0
|
1111 return NGX_ERROR;
|
|
|
1112 }
|
|
|
1113
|
|
|
1114 r->header_in->last += n;
|
|
|
1115
|
|
|
1116 return n;
|
|
|
1117 }
|
|
|
1118
|
|
|
1119
|
|
50
|
1120 static ngx_int_t
|
|
|
1121 ngx_http_alloc_large_header_buffer(ngx_http_request_t *r,
|
|
|
1122 ngx_uint_t request_line)
|
|
0
|
1123 {
|
|
|
1124 u_char *old, *new;
|
|
|
1125 ngx_buf_t *b;
|
|
|
1126 ngx_http_connection_t *hc;
|
|
|
1127 ngx_http_core_srv_conf_t *cscf;
|
|
|
1128
|
|
|
1129 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1130 "http alloc large header buffer");
|
|
|
1131
|
|
|
1132 if (request_line && r->state == 0) {
|
|
|
1133
|
|
|
1134 /* the client fills up the buffer with "\r\n" */
|
|
|
1135
|
|
24
|
1136 r->request_length += r->header_in->end - r->header_in->start;
|
|
|
1137
|
|
0
|
1138 r->header_in->pos = r->header_in->start;
|
|
|
1139 r->header_in->last = r->header_in->start;
|
|
|
1140
|
|
|
1141 return NGX_OK;
|
|
|
1142 }
|
|
|
1143
|
|
|
1144 old = request_line ? r->request_start : r->header_name_start;
|
|
|
1145
|
|
|
1146 cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
|
|
|
1147
|
|
|
1148 if (r->state != 0
|
|
|
1149 && (size_t) (r->header_in->pos - old)
|
|
|
1150 >= cscf->large_client_header_buffers.size)
|
|
|
1151 {
|
|
|
1152 return NGX_DECLINED;
|
|
|
1153 }
|
|
|
1154
|
|
|
1155 hc = r->http_connection;
|
|
|
1156
|
|
|
1157 if (hc->nfree) {
|
|
|
1158 b = hc->free[--hc->nfree];
|
|
|
1159
|
|
|
1160 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
10
|
1161 "http large header free: %p %uz",
|
|
0
|
1162 b->pos, b->end - b->last);
|
|
|
1163
|
|
|
1164 } else if (hc->nbusy < cscf->large_client_header_buffers.num) {
|
|
|
1165
|
|
|
1166 if (hc->busy == NULL) {
|
|
|
1167 hc->busy = ngx_palloc(r->connection->pool,
|
|
|
1168 cscf->large_client_header_buffers.num * sizeof(ngx_buf_t *));
|
|
|
1169 if (hc->busy == NULL) {
|
|
|
1170 return NGX_ERROR;
|
|
|
1171 }
|
|
|
1172 }
|
|
|
1173
|
|
|
1174 b = ngx_create_temp_buf(r->connection->pool,
|
|
|
1175 cscf->large_client_header_buffers.size);
|
|
|
1176 if (b == NULL) {
|
|
|
1177 return NGX_ERROR;
|
|
|
1178 }
|
|
|
1179
|
|
|
1180 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
10
|
1181 "http large header alloc: %p %uz",
|
|
0
|
1182 b->pos, b->end - b->last);
|
|
|
1183
|
|
|
1184 } else {
|
|
|
1185 return NGX_DECLINED;
|
|
|
1186 }
|
|
|
1187
|
|
|
1188 hc->busy[hc->nbusy++] = b;
|
|
|
1189
|
|
|
1190 if (r->state == 0) {
|
|
|
1191 /*
|
|
|
1192 * r->state == 0 means that a header line was parsed successfully
|
|
|
1193 * and we do not need to copy incomplete header line and
|
|
|
1194 * to relocate the parser header pointers
|
|
|
1195 */
|
|
|
1196
|
|
24
|
1197 r->request_length += r->header_in->end - r->header_in->start;
|
|
|
1198
|
|
0
|
1199 r->header_in = b;
|
|
|
1200
|
|
|
1201 return NGX_OK;
|
|
|
1202 }
|
|
|
1203
|
|
|
1204 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1205 "http large header copy: %d", r->header_in->pos - old);
|
|
|
1206
|
|
24
|
1207 r->request_length += old - r->header_in->start;
|
|
|
1208
|
|
0
|
1209 new = b->start;
|
|
|
1210
|
|
|
1211 ngx_memcpy(new, old, r->header_in->pos - old);
|
|
|
1212
|
|
|
1213 b->pos = new + (r->header_in->pos - old);
|
|
|
1214 b->last = new + (r->header_in->pos - old);
|
|
|
1215
|
|
|
1216 if (request_line) {
|
|
|
1217 r->request_start = new;
|
|
|
1218
|
|
|
1219 if (r->request_end) {
|
|
|
1220 r->request_end = new + (r->request_end - old);
|
|
|
1221 }
|
|
|
1222
|
|
|
1223 r->method_end = new + (r->method_end - old);
|
|
|
1224
|
|
|
1225 r->uri_start = new + (r->uri_start - old);
|
|
|
1226 r->uri_end = new + (r->uri_end - old);
|
|
|
1227
|
|
|
1228 if (r->schema_start) {
|
|
|
1229 r->schema_start = new + (r->schema_start - old);
|
|
|
1230 r->schema_end = new + (r->schema_end - old);
|
|
|
1231 }
|
|
|
1232
|
|
|
1233 if (r->host_start) {
|
|
|
1234 r->host_start = new + (r->host_start - old);
|
|
270
|
1235 if (r->host_end) {
|
|
|
1236 r->host_end = new + (r->host_end - old);
|
|
|
1237 }
|
|
0
|
1238 }
|
|
|
1239
|
|
|
1240 if (r->port_start) {
|
|
|
1241 r->port_start = new + (r->port_start - old);
|
|
|
1242 r->port_end = new + (r->port_end - old);
|
|
|
1243 }
|
|
|
1244
|
|
|
1245 if (r->uri_ext) {
|
|
|
1246 r->uri_ext = new + (r->uri_ext - old);
|
|
|
1247 }
|
|
|
1248
|
|
|
1249 if (r->args_start) {
|
|
|
1250 r->args_start = new + (r->args_start - old);
|
|
|
1251 }
|
|
|
1252
|
|
354
|
1253 if (r->http_protocol.data) {
|
|
|
1254 r->http_protocol.data = new + (r->http_protocol.data - old);
|
|
|
1255 }
|
|
|
1256
|
|
0
|
1257 } else {
|
|
|
1258 r->header_name_start = new;
|
|
|
1259 r->header_name_end = new + (r->header_name_end - old);
|
|
|
1260 r->header_start = new + (r->header_start - old);
|
|
|
1261 r->header_end = new + (r->header_end - old);
|
|
|
1262 }
|
|
|
1263
|
|
|
1264 r->header_in = b;
|
|
|
1265
|
|
|
1266 return NGX_OK;
|
|
|
1267 }
|
|
|
1268
|
|
|
1269
|
|
50
|
1270 static ngx_int_t
|
|
58
|
1271 ngx_http_process_header_line(ngx_http_request_t *r, ngx_table_elt_t *h,
|
|
|
1272 ngx_uint_t offset)
|
|
|
1273 {
|
|
|
1274 ngx_table_elt_t **ph;
|
|
|
1275
|
|
|
1276 ph = (ngx_table_elt_t **) ((char *) &r->headers_in + offset);
|
|
|
1277
|
|
|
1278 if (*ph == NULL) {
|
|
|
1279 *ph = h;
|
|
|
1280 }
|
|
|
1281
|
|
|
1282 return NGX_OK;
|
|
|
1283 }
|
|
|
1284
|
|
|
1285
|
|
|
1286 static ngx_int_t
|
|
72
|
1287 ngx_http_process_unique_header_line(ngx_http_request_t *r, ngx_table_elt_t *h,
|
|
|
1288 ngx_uint_t offset)
|
|
|
1289 {
|
|
|
1290 ngx_table_elt_t **ph;
|
|
|
1291
|
|
|
1292 ph = (ngx_table_elt_t **) ((char *) &r->headers_in + offset);
|
|
|
1293
|
|
|
1294 if (*ph == NULL) {
|
|
|
1295 *ph = h;
|
|
|
1296 return NGX_OK;
|
|
|
1297 }
|
|
|
1298
|
|
|
1299 ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
|
|
230
|
1300 "client sent duplicate header line: \"%V: %V\", "
|
|
|
1301 "previous value: \"%V: %V\"",
|
|
|
1302 &h->key, &h->value, &(*ph)->key, &(*ph)->value);
|
|
72
|
1303
|
|
|
1304 ngx_http_finalize_request(r, NGX_HTTP_BAD_REQUEST);
|
|
|
1305
|
|
|
1306 return NGX_ERROR;
|
|
|
1307 }
|
|
|
1308
|
|
|
1309
|
|
|
1310 static ngx_int_t
|
|
376
|
1311 ngx_http_process_host(ngx_http_request_t *r, ngx_table_elt_t *h,
|
|
|
1312 ngx_uint_t offset)
|
|
|
1313 {
|
|
|
1314 ssize_t len;
|
|
|
1315
|
|
|
1316 if (r->headers_in.host == NULL) {
|
|
|
1317 r->headers_in.host = h;
|
|
|
1318 }
|
|
|
1319
|
|
|
1320 len = ngx_http_validate_host(h->value.data, h->value.len);
|
|
|
1321
|
|
|
1322 if (len <= 0) {
|
|
|
1323 ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
|
|
|
1324 "client sent invalid host header");
|
|
|
1325 ngx_http_finalize_request(r, NGX_HTTP_BAD_REQUEST);
|
|
|
1326 return NGX_ERROR;
|
|
|
1327 }
|
|
|
1328
|
|
|
1329 if (r->headers_in.server.len) {
|
|
|
1330 return NGX_OK;
|
|
|
1331 }
|
|
|
1332
|
|
|
1333 r->headers_in.server.len = len;
|
|
|
1334 r->headers_in.server.data = h->value.data;
|
|
|
1335
|
|
|
1336 return NGX_OK;
|
|
|
1337 }
|
|
|
1338
|
|
|
1339
|
|
|
1340 static ngx_int_t
|
|
336
|
1341 ngx_http_process_connection(ngx_http_request_t *r, ngx_table_elt_t *h,
|
|
|
1342 ngx_uint_t offset)
|
|
|
1343 {
|
|
340
|
1344 if (ngx_strcasestrn(h->value.data, "close", 5 - 1)) {
|
|
336
|
1345 r->headers_in.connection_type = NGX_HTTP_CONNECTION_CLOSE;
|
|
|
1346
|
|
340
|
1347 } else if (ngx_strcasestrn(h->value.data, "keep-alive", 10 - 1)) {
|
|
336
|
1348 r->headers_in.connection_type = NGX_HTTP_CONNECTION_KEEP_ALIVE;
|
|
|
1349 }
|
|
|
1350
|
|
|
1351 return NGX_OK;
|
|
|
1352 }
|
|
|
1353
|
|
|
1354
|
|
|
1355 static ngx_int_t
|
|
376
|
1356 ngx_http_process_user_agent(ngx_http_request_t *r, ngx_table_elt_t *h,
|
|
|
1357 ngx_uint_t offset)
|
|
|
1358 {
|
|
406
|
1359 u_char *user_agent, *msie;
|
|
376
|
1360
|
|
|
1361 if (r->headers_in.user_agent) {
|
|
|
1362 return NGX_OK;
|
|
|
1363 }
|
|
|
1364
|
|
|
1365 r->headers_in.user_agent = h;
|
|
|
1366
|
|
|
1367 /* check some widespread browsers while the header is in CPU cache */
|
|
|
1368
|
|
|
1369 user_agent = h->value.data;
|
|
|
1370
|
|
406
|
1371 msie = ngx_strstrn(user_agent, "MSIE ", 5 - 1);
|
|
|
1372
|
|
|
1373 if (msie && msie + 7 < user_agent + h->value.len) {
|
|
376
|
1374
|
|
|
1375 r->headers_in.msie = 1;
|
|
|
1376
|
|
406
|
1377 if (msie[6] == '.') {
|
|
|
1378
|
|
|
1379 switch (msie[5]) {
|
|
|
1380 case '4':
|
|
|
1381 r->headers_in.msie4 = 1;
|
|
|
1382 /* fall through */
|
|
|
1383 case '5':
|
|
|
1384 case '6':
|
|
|
1385 r->headers_in.msie6 = 1;
|
|
|
1386 }
|
|
376
|
1387 }
|
|
|
1388
|
|
|
1389 #if 0
|
|
|
1390 /* MSIE ignores the SSL "close notify" alert */
|
|
|
1391 if (c->ssl) {
|
|
|
1392 c->ssl->no_send_shutdown = 1;
|
|
|
1393 }
|
|
|
1394 #endif
|
|
|
1395 }
|
|
|
1396
|
|
|
1397 if (ngx_strstrn(user_agent, "Opera", 5 - 1)) {
|
|
|
1398 r->headers_in.opera = 1;
|
|
|
1399 r->headers_in.msie = 0;
|
|
|
1400 r->headers_in.msie4 = 0;
|
|
406
|
1401 r->headers_in.msie6 = 0;
|
|
376
|
1402 }
|
|
|
1403
|
|
|
1404 if (!r->headers_in.msie && !r->headers_in.opera) {
|
|
|
1405
|
|
|
1406 if (ngx_strstrn(user_agent, "Gecko/", 6 - 1)) {
|
|
|
1407 r->headers_in.gecko = 1;
|
|
|
1408
|
|
|
1409 } else if (ngx_strstrn(user_agent, "Konqueror", 9 - 1)) {
|
|
|
1410 r->headers_in.konqueror = 1;
|
|
|
1411 }
|
|
|
1412 }
|
|
|
1413
|
|
|
1414 return NGX_OK;
|
|
|
1415 }
|
|
|
1416
|
|
|
1417
|
|
|
1418 static ngx_int_t
|
|
58
|
1419 ngx_http_process_cookie(ngx_http_request_t *r, ngx_table_elt_t *h,
|
|
|
1420 ngx_uint_t offset)
|
|
|
1421 {
|
|
|
1422 ngx_table_elt_t **cookie;
|
|
|
1423
|
|
|
1424 cookie = ngx_array_push(&r->headers_in.cookies);
|
|
72
|
1425 if (cookie) {
|
|
|
1426 *cookie = h;
|
|
|
1427 return NGX_OK;
|
|
58
|
1428 }
|
|
|
1429
|
|
72
|
1430 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
1431
|
|
|
1432 return NGX_ERROR;
|
|
58
|
1433 }
|
|
|
1434
|
|
|
1435
|
|
|
1436 static ngx_int_t
|
|
50
|
1437 ngx_http_process_request_header(ngx_http_request_t *r)
|
|
0
|
1438 {
|
|
376
|
1439 if (ngx_http_find_virtual_server(r, r->headers_in.server.data,
|
|
|
1440 r->headers_in.server.len)
|
|
|
1441 == NGX_ERROR)
|
|
|
1442 {
|
|
|
1443 ngx_http_finalize_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
1444 return NGX_ERROR;
|
|
|
1445 }
|
|
|
1446
|
|
|
1447 if (r->headers_in.host == NULL && r->http_version > NGX_HTTP_VERSION_10) {
|
|
|
1448 ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
|
|
|
1449 "client sent HTTP/1.1 request without \"Host\" header");
|
|
|
1450 ngx_http_finalize_request(r, NGX_HTTP_BAD_REQUEST);
|
|
|
1451 return NGX_ERROR;
|
|
0
|
1452 }
|
|
|
1453
|
|
|
1454 if (r->headers_in.content_length) {
|
|
|
1455 r->headers_in.content_length_n =
|
|
212
|
1456 ngx_atoof(r->headers_in.content_length->value.data,
|
|
0
|
1457 r->headers_in.content_length->value.len);
|
|
|
1458
|
|
|
1459 if (r->headers_in.content_length_n == NGX_ERROR) {
|
|
54
|
1460 ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
|
|
|
1461 "client sent invalid \"Content-Length\" header");
|
|
130
|
1462 ngx_http_finalize_request(r, NGX_HTTP_LENGTH_REQUIRED);
|
|
54
|
1463 return NGX_ERROR;
|
|
0
|
1464 }
|
|
|
1465 }
|
|
|
1466
|
|
435
|
1467 if (r->method & NGX_HTTP_PUT && r->headers_in.content_length_n == -1) {
|
|
54
|
1468 ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
|
|
362
|
1469 "client sent %V method without \"Content-Length\" header",
|
|
|
1470 &r->method_name);
|
|
130
|
1471 ngx_http_finalize_request(r, NGX_HTTP_LENGTH_REQUIRED);
|
|
|
1472 return NGX_ERROR;
|
|
|
1473 }
|
|
|
1474
|
|
336
|
1475 if (r->method & NGX_HTTP_TRACE) {
|
|
294
|
1476 ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
|
|
|
1477 "client sent TRACE method");
|
|
|
1478 ngx_http_finalize_request(r, NGX_HTTP_NOT_ALLOWED);
|
|
|
1479 return NGX_ERROR;
|
|
|
1480 }
|
|
|
1481
|
|
130
|
1482 if (r->headers_in.transfer_encoding
|
|
340
|
1483 && ngx_strcasestrn(r->headers_in.transfer_encoding->value.data,
|
|
|
1484 "chunked", 7 - 1))
|
|
130
|
1485 {
|
|
|
1486 ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
|
|
|
1487 "client sent \"Transfer-Encoding: chunked\" header");
|
|
|
1488 ngx_http_finalize_request(r, NGX_HTTP_LENGTH_REQUIRED);
|
|
54
|
1489 return NGX_ERROR;
|
|
0
|
1490 }
|
|
|
1491
|
|
336
|
1492 if (r->headers_in.connection_type == NGX_HTTP_CONNECTION_KEEP_ALIVE) {
|
|
|
1493 if (r->headers_in.keep_alive) {
|
|
|
1494 r->headers_in.keep_alive_n =
|
|
|
1495 ngx_atotm(r->headers_in.keep_alive->value.data,
|
|
|
1496 r->headers_in.keep_alive->value.len);
|
|
0
|
1497 }
|
|
|
1498 }
|
|
|
1499
|
|
308
|
1500 return NGX_OK;
|
|
|
1501 }
|
|
|
1502
|
|
|
1503
|
|
|
1504 static void
|
|
|
1505 ngx_http_process_request(ngx_http_request_t *r)
|
|
|
1506 {
|
|
356
|
1507 ngx_connection_t *c;
|
|
308
|
1508
|
|
|
1509 c = r->connection;
|
|
|
1510
|
|
354
|
1511 if (r->plain_http) {
|
|
|
1512 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
|
1513 "client sent plain HTTP request to HTTPS port");
|
|
|
1514 ngx_http_finalize_request(r, NGX_HTTP_TO_HTTPS);
|
|
|
1515 return;
|
|
|
1516 }
|
|
|
1517
|
|
308
|
1518 #if (NGX_HTTP_SSL)
|
|
|
1519
|
|
|
1520 if (c->ssl) {
|
|
356
|
1521 long rc;
|
|
372
|
1522 X509 *cert;
|
|
356
|
1523 ngx_http_ssl_srv_conf_t *sscf;
|
|
|
1524
|
|
218
|
1525 sscf = ngx_http_get_module_srv_conf(r, ngx_http_ssl_module);
|
|
|
1526
|
|
392
|
1527 if (sscf->verify == 1) {
|
|
308
|
1528 rc = SSL_get_verify_result(c->ssl->connection);
|
|
218
|
1529
|
|
|
1530 if (rc != X509_V_OK) {
|
|
308
|
1531 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
220
|
1532 "client SSL certificate verify error: (%l:%s)",
|
|
218
|
1533 rc, X509_verify_cert_error_string(rc));
|
|
366
|
1534
|
|
|
1535 ngx_ssl_remove_cached_session(sscf->ssl.ctx,
|
|
|
1536 (SSL_get0_session(c->ssl->connection)));
|
|
|
1537
|
|
218
|
1538 ngx_http_finalize_request(r, NGX_HTTPS_CERT_ERROR);
|
|
308
|
1539 return;
|
|
218
|
1540 }
|
|
|
1541
|
|
372
|
1542 cert = SSL_get_peer_certificate(c->ssl->connection);
|
|
|
1543
|
|
|
1544 if (cert == NULL) {
|
|
308
|
1545 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
218
|
1546 "client sent no required SSL certificate");
|
|
366
|
1547
|
|
|
1548 ngx_ssl_remove_cached_session(sscf->ssl.ctx,
|
|
|
1549 (SSL_get0_session(c->ssl->connection)));
|
|
|
1550
|
|
218
|
1551 ngx_http_finalize_request(r, NGX_HTTPS_NO_CERT);
|
|
308
|
1552 return;
|
|
218
|
1553 }
|
|
372
|
1554
|
|
|
1555 X509_free(cert);
|
|
218
|
1556 }
|
|
|
1557 }
|
|
|
1558
|
|
|
1559 #endif
|
|
|
1560
|
|
308
|
1561 if (c->read->timer_set) {
|
|
|
1562 ngx_del_timer(c->read);
|
|
|
1563 }
|
|
|
1564
|
|
|
1565 #if (NGX_STAT_STUB)
|
|
511
|
1566 (void) ngx_atomic_fetch_add(ngx_stat_reading, -1);
|
|
308
|
1567 r->stat_reading = 0;
|
|
511
|
1568 (void) ngx_atomic_fetch_add(ngx_stat_writing, 1);
|
|
308
|
1569 r->stat_writing = 1;
|
|
|
1570 #endif
|
|
|
1571
|
|
|
1572 c->read->handler = ngx_http_request_handler;
|
|
|
1573 c->write->handler = ngx_http_request_handler;
|
|
326
|
1574 r->read_event_handler = ngx_http_block_reading;
|
|
308
|
1575
|
|
|
1576 ngx_http_handler(r);
|
|
|
1577
|
|
435
|
1578 ngx_http_run_posted_requests(c);
|
|
0
|
1579 }
|
|
|
1580
|
|
|
1581
|
|
376
|
1582 static ssize_t
|
|
|
1583 ngx_http_validate_host(u_char *host, size_t len)
|
|
26
|
1584 {
|
|
376
|
1585 u_char ch;
|
|
|
1586 size_t i, last;
|
|
|
1587 ngx_uint_t dot;
|
|
|
1588
|
|
|
1589 last = len;
|
|
|
1590 dot = 0;
|
|
|
1591
|
|
|
1592 for (i = 0; i < len; i++) {
|
|
|
1593 ch = host[i];
|
|
|
1594
|
|
|
1595 if (ch == '.') {
|
|
|
1596 if (dot) {
|
|
|
1597 return -1;
|
|
|
1598 }
|
|
|
1599
|
|
|
1600 dot = 1;
|
|
|
1601 continue;
|
|
|
1602 }
|
|
|
1603
|
|
|
1604 dot = 0;
|
|
|
1605
|
|
|
1606 if (ch == ':') {
|
|
|
1607 last = i;
|
|
|
1608 continue;
|
|
|
1609 }
|
|
|
1610
|
|
491
|
1611 if (ngx_path_separator(ch) || ch == '\0') {
|
|
376
|
1612 return -1;
|
|
|
1613 }
|
|
|
1614 }
|
|
|
1615
|
|
|
1616 if (dot) {
|
|
|
1617 last--;
|
|
|
1618 }
|
|
|
1619
|
|
|
1620 return last;
|
|
|
1621 }
|
|
|
1622
|
|
|
1623
|
|
|
1624 static ngx_int_t
|
|
|
1625 ngx_http_find_virtual_server(ngx_http_request_t *r, u_char *host, size_t len)
|
|
|
1626 {
|
|
394
|
1627 u_char *server;
|
|
|
1628 ngx_uint_t hash;
|
|
142
|
1629 ngx_http_core_loc_conf_t *clcf;
|
|
|
1630 ngx_http_core_srv_conf_t *cscf;
|
|
376
|
1631 u_char buf[32];
|
|
|
1632
|
|
487
|
1633 if (r->virtual_names == NULL) {
|
|
376
|
1634 return NGX_DECLINED;
|
|
|
1635 }
|
|
|
1636
|
|
|
1637 if (len <= 32) {
|
|
|
1638 server = buf;
|
|
|
1639
|
|
|
1640 } else {
|
|
382
|
1641 server = ngx_pnalloc(r->pool, len);
|
|
376
|
1642 if (server == NULL) {
|
|
|
1643 return NGX_ERROR;
|
|
|
1644 }
|
|
|
1645 }
|
|
|
1646
|
|
394
|
1647 hash = ngx_hash_strlow(server, host, len);
|
|
376
|
1648
|
|
487
|
1649 cscf = ngx_hash_find_combined(&r->virtual_names->names, hash, server, len);
|
|
312
|
1650
|
|
|
1651 if (cscf) {
|
|
|
1652 goto found;
|
|
26
|
1653 }
|
|
|
1654
|
|
326
|
1655 #if (NGX_PCRE)
|
|
|
1656
|
|
487
|
1657 if (r->virtual_names->nregex) {
|
|
469
|
1658 size_t ncaptures;
|
|
356
|
1659 ngx_int_t n;
|
|
|
1660 ngx_uint_t i;
|
|
|
1661 ngx_str_t name;
|
|
|
1662 ngx_http_server_name_t *sn;
|
|
326
|
1663
|
|
|
1664 name.len = len;
|
|
376
|
1665 name.data = server;
|
|
326
|
1666
|
|
465
|
1667 ncaptures = 0;
|
|
|
1668
|
|
487
|
1669 sn = r->virtual_names->regex;
|
|
|
1670
|
|
|
1671 for (i = 0; i < r->virtual_names->nregex; i++) {
|
|
326
|
1672
|
|
465
|
1673 if (sn[i].captures && r->captures == NULL) {
|
|
|
1674
|
|
467
|
1675 ncaptures = (NGX_HTTP_MAX_CAPTURES + 1) * 3;
|
|
|
1676
|
|
|
1677 r->captures = ngx_palloc(r->pool, ncaptures * sizeof(int));
|
|
465
|
1678 if (r->captures == NULL) {
|
|
|
1679 return NGX_ERROR;
|
|
|
1680 }
|
|
|
1681
|
|
|
1682 if (server == buf) {
|
|
|
1683 server = ngx_pnalloc(r->pool, len);
|
|
|
1684 if (server == NULL) {
|
|
|
1685 return NGX_ERROR;
|
|
|
1686 }
|
|
|
1687
|
|
|
1688 ngx_memcpy(server, buf, len);
|
|
|
1689 name.data = server;
|
|
|
1690 }
|
|
|
1691 }
|
|
|
1692
|
|
|
1693 n = ngx_regex_exec(sn[i].regex, &name, r->captures, ncaptures);
|
|
326
|
1694
|
|
|
1695 if (n == NGX_REGEX_NO_MATCHED) {
|
|
|
1696 continue;
|
|
|
1697 }
|
|
|
1698
|
|
|
1699 if (n < 0) {
|
|
|
1700 ngx_log_error(NGX_LOG_ALERT, r->connection->log, 0,
|
|
|
1701 ngx_regex_exec_n
|
|
|
1702 " failed: %d on \"%V\" using \"%V\"",
|
|
|
1703 n, &name, &sn[i].name);
|
|
376
|
1704 return NGX_ERROR;
|
|
326
|
1705 }
|
|
|
1706
|
|
|
1707 /* match */
|
|
|
1708
|
|
|
1709 cscf = sn[i].core_srv_conf;
|
|
|
1710
|
|
465
|
1711 r->ncaptures = ncaptures;
|
|
|
1712 r->captures_data = server;
|
|
|
1713
|
|
326
|
1714 goto found;
|
|
|
1715 }
|
|
|
1716 }
|
|
|
1717
|
|
|
1718 #endif
|
|
|
1719
|
|
376
|
1720 return NGX_OK;
|
|
58
|
1721
|
|
|
1722 found:
|
|
|
1723
|
|
142
|
1724 r->srv_conf = cscf->ctx->srv_conf;
|
|
|
1725 r->loc_conf = cscf->ctx->loc_conf;
|
|
58
|
1726
|
|
|
1727 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
493
|
1728 r->connection->log->file = clcf->error_log->file;
|
|
58
|
1729
|
|
|
1730 if (!(r->connection->log->log_level & NGX_LOG_DEBUG_CONNECTION)) {
|
|
493
|
1731 r->connection->log->log_level = clcf->error_log->log_level;
|
|
26
|
1732 }
|
|
|
1733
|
|
376
|
1734 return NGX_OK;
|
|
26
|
1735 }
|
|
|
1736
|
|
|
1737
|
|
58
|
1738 static void
|
|
|
1739 ngx_http_request_handler(ngx_event_t *ev)
|
|
|
1740 {
|
|
|
1741 ngx_connection_t *c;
|
|
|
1742 ngx_http_request_t *r;
|
|
214
|
1743 ngx_http_log_ctx_t *ctx;
|
|
58
|
1744
|
|
|
1745 c = ev->data;
|
|
|
1746 r = c->data;
|
|
|
1747
|
|
214
|
1748 ctx = c->log->data;
|
|
|
1749 ctx->current_request = r;
|
|
|
1750
|
|
435
|
1751 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
|
1752 "http run request: \"%V?%V\"", &r->uri, &r->args);
|
|
|
1753
|
|
58
|
1754 if (ev->write) {
|
|
|
1755 r->write_event_handler(r);
|
|
|
1756
|
|
|
1757 } else {
|
|
|
1758 r->read_event_handler(r);
|
|
|
1759 }
|
|
435
|
1760
|
|
|
1761 ngx_http_run_posted_requests(c);
|
|
|
1762 }
|
|
|
1763
|
|
|
1764
|
|
|
1765 void
|
|
|
1766 ngx_http_run_posted_requests(ngx_connection_t *c)
|
|
|
1767 {
|
|
|
1768 ngx_http_request_t *r;
|
|
|
1769 ngx_http_log_ctx_t *ctx;
|
|
|
1770 ngx_http_posted_request_t *pr;
|
|
|
1771
|
|
|
1772 for ( ;; ) {
|
|
|
1773
|
|
|
1774 if (c->destroyed) {
|
|
|
1775 return;
|
|
|
1776 }
|
|
|
1777
|
|
|
1778 r = c->data;
|
|
|
1779 pr = r->main->posted_requests;
|
|
|
1780
|
|
|
1781 if (pr == NULL) {
|
|
|
1782 return;
|
|
|
1783 }
|
|
|
1784
|
|
|
1785 r->main->posted_requests = pr->next;
|
|
|
1786
|
|
|
1787 r = pr->request;
|
|
|
1788
|
|
|
1789 ctx = c->log->data;
|
|
|
1790 ctx->current_request = r;
|
|
|
1791
|
|
|
1792 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
|
1793 "http posted request: \"%V?%V\"", &r->uri, &r->args);
|
|
|
1794
|
|
|
1795 r->write_event_handler(r);
|
|
|
1796 }
|
|
|
1797 }
|
|
|
1798
|
|
|
1799
|
|
|
1800 ngx_int_t
|
|
|
1801 ngx_http_post_request(ngx_http_request_t *r)
|
|
|
1802 {
|
|
|
1803 ngx_http_posted_request_t *pr, **p;
|
|
|
1804
|
|
|
1805 pr = ngx_palloc(r->pool, sizeof(ngx_http_posted_request_t));
|
|
|
1806 if (pr == NULL) {
|
|
|
1807 return NGX_ERROR;
|
|
|
1808 }
|
|
|
1809
|
|
|
1810 pr->request = r;
|
|
|
1811 pr->next = NULL;
|
|
|
1812
|
|
|
1813 for (p = &r->main->posted_requests; *p; p = &(*p)->next) { /* void */ }
|
|
|
1814
|
|
|
1815 *p = pr;
|
|
|
1816
|
|
|
1817 return NGX_OK;
|
|
58
|
1818 }
|
|
|
1819
|
|
|
1820
|
|
50
|
1821 void
|
|
58
|
1822 ngx_http_finalize_request(ngx_http_request_t *r, ngx_int_t rc)
|
|
0
|
1823 {
|
|
330
|
1824 ngx_connection_t *c;
|
|
58
|
1825 ngx_http_request_t *pr;
|
|
0
|
1826 ngx_http_core_loc_conf_t *clcf;
|
|
|
1827
|
|
58
|
1828 if (rc == NGX_DONE) {
|
|
118
|
1829 /* the request pool may be already destroyed */
|
|
58
|
1830 return;
|
|
|
1831 }
|
|
|
1832
|
|
330
|
1833 c = r->connection;
|
|
|
1834
|
|
435
|
1835 ngx_log_debug4(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
|
1836 "http finalize request: %d, \"%V?%V\" %d",
|
|
|
1837 rc, &r->uri, &r->args, r == c->data);
|
|
132
|
1838
|
|
497
|
1839 if (rc == NGX_OK && r->filter_finalize) {
|
|
|
1840 c->error = 1;
|
|
|
1841 return;
|
|
|
1842 }
|
|
|
1843
|
|
230
|
1844 if (rc == NGX_DECLINED) {
|
|
|
1845 r->content_handler = NULL;
|
|
|
1846 r->write_event_handler = ngx_http_core_run_phases;
|
|
|
1847 ngx_http_core_run_phases(r);
|
|
|
1848 return;
|
|
|
1849 }
|
|
|
1850
|
|
248
|
1851 if (r != r->main && r->post_subrequest) {
|
|
|
1852 rc = r->post_subrequest->handler(r, r->post_subrequest->data, rc);
|
|
216
|
1853 }
|
|
|
1854
|
|
358
|
1855 if (rc == NGX_ERROR
|
|
|
1856 || rc == NGX_HTTP_REQUEST_TIME_OUT
|
|
|
1857 || rc == NGX_HTTP_CLIENT_CLOSED_REQUEST
|
|
|
1858 || c->error)
|
|
|
1859 {
|
|
282
|
1860 if (rc > 0 && r->headers_out.status == 0) {
|
|
|
1861 r->headers_out.status = rc;
|
|
190
|
1862 }
|
|
|
1863
|
|
162
|
1864 if (ngx_http_post_action(r) == NGX_OK) {
|
|
|
1865 return;
|
|
|
1866 }
|
|
|
1867
|
|
118
|
1868 ngx_http_close_request(r, 0);
|
|
0
|
1869 return;
|
|
|
1870 }
|
|
|
1871
|
|
186
|
1872 if (rc >= NGX_HTTP_SPECIAL_RESPONSE
|
|
|
1873 || rc == NGX_HTTP_CREATED
|
|
|
1874 || rc == NGX_HTTP_NO_CONTENT)
|
|
|
1875 {
|
|
136
|
1876 if (rc == NGX_HTTP_CLOSE) {
|
|
|
1877 ngx_http_close_request(r, rc);
|
|
|
1878 return;
|
|
|
1879 }
|
|
|
1880
|
|
146
|
1881 if (r == r->main) {
|
|
330
|
1882 if (c->read->timer_set) {
|
|
|
1883 ngx_del_timer(c->read);
|
|
118
|
1884 }
|
|
|
1885
|
|
330
|
1886 if (c->write->timer_set) {
|
|
|
1887 ngx_del_timer(c->write);
|
|
118
|
1888 }
|
|
|
1889 }
|
|
|
1890
|
|
416
|
1891 c->read->handler = ngx_http_request_handler;
|
|
|
1892 c->write->handler = ngx_http_request_handler;
|
|
|
1893
|
|
118
|
1894 ngx_http_finalize_request(r, ngx_http_special_response_handler(r, rc));
|
|
|
1895 return;
|
|
|
1896 }
|
|
|
1897
|
|
435
|
1898 if (r != r->main) {
|
|
|
1899
|
|
|
1900 if (r->buffered || r->postponed) {
|
|
|
1901
|
|
|
1902 if (ngx_http_set_write_handler(r) != NGX_OK) {
|
|
|
1903 ngx_http_close_request(r->main, 0);
|
|
|
1904 }
|
|
|
1905
|
|
74
|
1906 return;
|
|
|
1907 }
|
|
435
|
1908
|
|
|
1909 #if (NGX_DEBUG)
|
|
|
1910 if (r != c->data) {
|
|
|
1911 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
|
1912 "http finalize non-active request: \"%V?%V\"",
|
|
|
1913 &r->uri, &r->args);
|
|
|
1914 }
|
|
|
1915 #endif
|
|
58
|
1916
|
|
|
1917 pr = r->parent;
|
|
|
1918
|
|
435
|
1919 if (r == c->data) {
|
|
|
1920
|
|
|
1921 if (!r->logged) {
|
|
|
1922
|
|
|
1923 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
1924
|
|
|
1925 if (clcf->log_subrequest) {
|
|
|
1926 ngx_http_log_request(r);
|
|
|
1927 }
|
|
|
1928
|
|
|
1929 r->logged = 1;
|
|
|
1930
|
|
|
1931 } else {
|
|
|
1932 ngx_log_error(NGX_LOG_ALERT, c->log, 0,
|
|
|
1933 "subrequest: \"%V?%V\" logged again",
|
|
|
1934 &r->uri, &r->args);
|
|
|
1935 }
|
|
|
1936
|
|
|
1937 r->done = 1;
|
|
|
1938
|
|
|
1939 if (pr->postponed && pr->postponed->request == r) {
|
|
|
1940 pr->postponed = pr->postponed->next;
|
|
|
1941 }
|
|
|
1942
|
|
|
1943 c->data = pr;
|
|
|
1944
|
|
|
1945 } else {
|
|
|
1946
|
|
|
1947 r->write_event_handler = ngx_http_request_finalizer;
|
|
|
1948
|
|
|
1949 if (r->waited) {
|
|
|
1950 r->done = 1;
|
|
|
1951 }
|
|
|
1952 }
|
|
|
1953
|
|
|
1954 if (ngx_http_post_request(pr) != NGX_OK) {
|
|
|
1955 ngx_http_close_request(r->main, 0);
|
|
|
1956 return;
|
|
|
1957 }
|
|
|
1958
|
|
330
|
1959 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
435
|
1960 "http wake parent request: \"%V?%V\"",
|
|
|
1961 &pr->uri, &pr->args);
|
|
|
1962
|
|
|
1963 return;
|
|
|
1964 }
|
|
|
1965
|
|
|
1966 if (r->buffered || c->buffered || r->postponed) {
|
|
|
1967
|
|
|
1968 if (ngx_http_set_write_handler(r) != NGX_OK) {
|
|
|
1969 ngx_http_close_request(r, 0);
|
|
58
|
1970 }
|
|
|
1971
|
|
|
1972 return;
|
|
|
1973 }
|
|
0
|
1974
|
|
435
|
1975 if (r != c->data) {
|
|
|
1976 ngx_log_error(NGX_LOG_ALERT, c->log, 0,
|
|
|
1977 "http finalize non-active request: \"%V?%V\"",
|
|
|
1978 &r->uri, &r->args);
|
|
0
|
1979 return;
|
|
76
|
1980 }
|
|
|
1981
|
|
435
|
1982 r->done = 1;
|
|
0
|
1983
|
|
178
|
1984 if (!r->post_action) {
|
|
|
1985 r->request_complete = 1;
|
|
|
1986 }
|
|
|
1987
|
|
162
|
1988 if (ngx_http_post_action(r) == NGX_OK) {
|
|
126
|
1989 return;
|
|
|
1990 }
|
|
|
1991
|
|
330
|
1992 if (c->read->timer_set) {
|
|
|
1993 ngx_del_timer(c->read);
|
|
|
1994 }
|
|
|
1995
|
|
|
1996 if (c->write->timer_set) {
|
|
|
1997 c->write->delayed = 0;
|
|
|
1998 ngx_del_timer(c->write);
|
|
0
|
1999 }
|
|
|
2000
|
|
330
|
2001 if (c->destroyed) {
|
|
|
2002 return;
|
|
0
|
2003 }
|
|
|
2004
|
|
330
|
2005 if (c->read->eof) {
|
|
|
2006 ngx_http_close_request(r, 0);
|
|
138
|
2007 return;
|
|
|
2008 }
|
|
|
2009
|
|
435
|
2010 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
2011
|
|
0
|
2012 if (!ngx_terminate
|
|
|
2013 && !ngx_exiting
|
|
378
|
2014 && r->keepalive
|
|
0
|
2015 && clcf->keepalive_timeout > 0)
|
|
|
2016 {
|
|
|
2017 ngx_http_set_keepalive(r);
|
|
|
2018 return;
|
|
|
2019
|
|
|
2020 } else if (r->lingering_close && clcf->lingering_timeout > 0) {
|
|
|
2021 ngx_http_set_lingering_close(r);
|
|
|
2022 return;
|
|
|
2023 }
|
|
|
2024
|
|
|
2025 ngx_http_close_request(r, 0);
|
|
|
2026 }
|
|
|
2027
|
|
|
2028
|
|
74
|
2029 static ngx_int_t
|
|
50
|
2030 ngx_http_set_write_handler(ngx_http_request_t *r)
|
|
0
|
2031 {
|
|
|
2032 ngx_event_t *wev;
|
|
|
2033 ngx_http_core_loc_conf_t *clcf;
|
|
|
2034
|
|
58
|
2035 r->http_state = NGX_HTTP_WRITING_REQUEST_STATE;
|
|
|
2036
|
|
326
|
2037 r->read_event_handler = ngx_http_test_reading;
|
|
74
|
2038 r->write_event_handler = ngx_http_writer;
|
|
|
2039
|
|
0
|
2040 wev = r->connection->write;
|
|
|
2041
|
|
|
2042 if (wev->ready && wev->delayed) {
|
|
74
|
2043 return NGX_OK;
|
|
0
|
2044 }
|
|
|
2045
|
|
58
|
2046 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
0
|
2047 if (!wev->delayed) {
|
|
|
2048 ngx_add_timer(wev, clcf->send_timeout);
|
|
|
2049 }
|
|
|
2050
|
|
439
|
2051 if (ngx_handle_write_event(wev, clcf->send_lowat) != NGX_OK) {
|
|
0
|
2052 ngx_http_close_request(r, 0);
|
|
74
|
2053 return NGX_ERROR;
|
|
0
|
2054 }
|
|
74
|
2055
|
|
|
2056 return NGX_OK;
|
|
0
|
2057 }
|
|
|
2058
|
|
|
2059
|
|
58
|
2060 static void
|
|
|
2061 ngx_http_writer(ngx_http_request_t *r)
|
|
0
|
2062 {
|
|
|
2063 int rc;
|
|
58
|
2064 ngx_event_t *wev;
|
|
0
|
2065 ngx_connection_t *c;
|
|
|
2066 ngx_http_core_loc_conf_t *clcf;
|
|
|
2067
|
|
58
|
2068 c = r->connection;
|
|
|
2069 wev = c->write;
|
|
|
2070
|
|
132
|
2071 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, wev->log, 0,
|
|
|
2072 "http writer handler: \"%V?%V\"", &r->uri, &r->args);
|
|
0
|
2073
|
|
435
|
2074 clcf = ngx_http_get_module_loc_conf(r->main, ngx_http_core_module);
|
|
|
2075
|
|
0
|
2076 if (wev->timedout) {
|
|
|
2077 if (!wev->delayed) {
|
|
54
|
2078 ngx_log_error(NGX_LOG_INFO, c->log, NGX_ETIMEDOUT,
|
|
|
2079 "client timed out");
|
|
|
2080 c->timedout = 1;
|
|
116
|
2081
|
|
162
|
2082 ngx_http_finalize_request(r, NGX_HTTP_REQUEST_TIME_OUT);
|
|
0
|
2083 return;
|
|
|
2084 }
|
|
|
2085
|
|
|
2086 wev->timedout = 0;
|
|
|
2087 wev->delayed = 0;
|
|
|
2088
|
|
|
2089 if (!wev->ready) {
|
|
|
2090 ngx_add_timer(wev, clcf->send_timeout);
|
|
|
2091
|
|
439
|
2092 if (ngx_handle_write_event(wev, clcf->send_lowat) != NGX_OK) {
|
|
118
|
2093 ngx_http_close_request(r, 0);
|
|
0
|
2094 }
|
|
|
2095
|
|
|
2096 return;
|
|
|
2097 }
|
|
|
2098
|
|
|
2099 } else {
|
|
|
2100 if (wev->delayed) {
|
|
|
2101 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, wev->log, 0,
|
|
|
2102 "http writer delayed");
|
|
|
2103
|
|
439
|
2104 if (ngx_handle_write_event(wev, clcf->send_lowat) != NGX_OK) {
|
|
118
|
2105 ngx_http_close_request(r, 0);
|
|
0
|
2106 }
|
|
|
2107
|
|
|
2108 return;
|
|
|
2109 }
|
|
|
2110 }
|
|
|
2111
|
|
132
|
2112 rc = ngx_http_output_filter(r, NULL);
|
|
|
2113
|
|
|
2114 if (c->destroyed) {
|
|
|
2115 return;
|
|
58
|
2116 }
|
|
|
2117
|
|
132
|
2118 ngx_log_debug3(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
|
2119 "http writer output filter: %d, \"%V?%V\"",
|
|
|
2120 rc, &r->uri, &r->args);
|
|
0
|
2121
|
|
503
|
2122 if (rc == NGX_ERROR) {
|
|
|
2123 ngx_http_finalize_request(r, rc);
|
|
|
2124 return;
|
|
|
2125 }
|
|
|
2126
|
|
435
|
2127 if (r->buffered || r->postponed || (r == r->main && c->buffered)) {
|
|
|
2128
|
|
0
|
2129 if (!wev->ready && !wev->delayed) {
|
|
|
2130 ngx_add_timer(wev, clcf->send_timeout);
|
|
|
2131 }
|
|
|
2132
|
|
439
|
2133 if (ngx_handle_write_event(wev, clcf->send_lowat) != NGX_OK) {
|
|
118
|
2134 ngx_http_close_request(r, 0);
|
|
0
|
2135 }
|
|
|
2136
|
|
435
|
2137 return;
|
|
0
|
2138 }
|
|
|
2139
|
|
132
|
2140 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, wev->log, 0,
|
|
|
2141 "http writer done: \"%V?%V\"", &r->uri, &r->args);
|
|
0
|
2142
|
|
|
2143 ngx_http_finalize_request(r, rc);
|
|
|
2144 }
|
|
|
2145
|
|
|
2146
|
|
435
|
2147 static void
|
|
|
2148 ngx_http_request_finalizer(ngx_http_request_t *r)
|
|
|
2149 {
|
|
|
2150 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
2151 "http finalizer done: \"%V?%V\"", &r->uri, &r->args);
|
|
|
2152
|
|
|
2153 ngx_http_finalize_request(r, 0);
|
|
|
2154 }
|
|
|
2155
|
|
|
2156
|
|
326
|
2157 void
|
|
|
2158 ngx_http_block_reading(ngx_http_request_t *r)
|
|
0
|
2159 {
|
|
318
|
2160 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
326
|
2161 "http reading blocked");
|
|
318
|
2162
|
|
|
2163 /* aio does not call this handler */
|
|
|
2164
|
|
|
2165 if ((ngx_event_flags & NGX_USE_LEVEL_EVENT)
|
|
|
2166 && r->connection->read->active)
|
|
|
2167 {
|
|
439
|
2168 if (ngx_del_event(r->connection->read, NGX_READ_EVENT, 0) != NGX_OK) {
|
|
318
|
2169 ngx_http_close_request(r, 0);
|
|
|
2170 }
|
|
|
2171 }
|
|
|
2172 }
|
|
|
2173
|
|
|
2174
|
|
425
|
2175 void
|
|
326
|
2176 ngx_http_test_reading(ngx_http_request_t *r)
|
|
318
|
2177 {
|
|
276
|
2178 int n;
|
|
|
2179 char buf[1];
|
|
|
2180 ngx_err_t err;
|
|
|
2181 ngx_event_t *rev;
|
|
|
2182 ngx_connection_t *c;
|
|
|
2183
|
|
|
2184 c = r->connection;
|
|
|
2185 rev = c->read;
|
|
|
2186
|
|
326
|
2187 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "http test reading");
|
|
276
|
2188
|
|
|
2189 #if (NGX_HAVE_KQUEUE)
|
|
|
2190
|
|
|
2191 if (ngx_event_flags & NGX_USE_KQUEUE_EVENT) {
|
|
|
2192
|
|
|
2193 if (!rev->pending_eof) {
|
|
|
2194 return;
|
|
|
2195 }
|
|
|
2196
|
|
|
2197 rev->eof = 1;
|
|
|
2198 c->error = 1;
|
|
|
2199 err = rev->kq_errno;
|
|
|
2200
|
|
|
2201 goto closed;
|
|
|
2202 }
|
|
|
2203
|
|
|
2204 #endif
|
|
|
2205
|
|
|
2206 n = recv(c->fd, buf, 1, MSG_PEEK);
|
|
|
2207
|
|
|
2208 if (n == 0) {
|
|
|
2209 rev->eof = 1;
|
|
|
2210 c->error = 1;
|
|
|
2211 err = 0;
|
|
|
2212
|
|
|
2213 goto closed;
|
|
|
2214
|
|
|
2215 } else if (n == -1) {
|
|
|
2216 err = ngx_socket_errno;
|
|
|
2217
|
|
|
2218 if (err != NGX_EAGAIN) {
|
|
|
2219 rev->eof = 1;
|
|
|
2220 c->error = 1;
|
|
|
2221
|
|
|
2222 goto closed;
|
|
|
2223 }
|
|
|
2224 }
|
|
0
|
2225
|
|
|
2226 /* aio does not call this handler */
|
|
|
2227
|
|
276
|
2228 if ((ngx_event_flags & NGX_USE_LEVEL_EVENT) && rev->active) {
|
|
|
2229
|
|
439
|
2230 if (ngx_del_event(rev, NGX_READ_EVENT, 0) != NGX_OK) {
|
|
0
|
2231 ngx_http_close_request(r, 0);
|
|
|
2232 }
|
|
|
2233 }
|
|
276
|
2234
|
|
|
2235 return;
|
|
|
2236
|
|
|
2237 closed:
|
|
|
2238
|
|
|
2239 if (err) {
|
|
|
2240 rev->error = 1;
|
|
|
2241 }
|
|
|
2242
|
|
|
2243 ngx_log_error(NGX_LOG_INFO, c->log, err,
|
|
|
2244 "client closed prematurely connection");
|
|
|
2245
|
|
286
|
2246 ngx_http_finalize_request(r, 0);
|
|
0
|
2247 }
|
|
|
2248
|
|
|
2249
|
|
50
|
2250 static void
|
|
|
2251 ngx_http_set_keepalive(ngx_http_request_t *r)
|
|
0
|
2252 {
|
|
2
|
2253 int tcp_nodelay;
|
|
0
|
2254 ngx_int_t i;
|
|
|
2255 ngx_buf_t *b, *f;
|
|
|
2256 ngx_event_t *rev, *wev;
|
|
|
2257 ngx_connection_t *c;
|
|
|
2258 ngx_http_connection_t *hc;
|
|
|
2259 ngx_http_core_srv_conf_t *cscf;
|
|
|
2260 ngx_http_core_loc_conf_t *clcf;
|
|
|
2261
|
|
|
2262 c = r->connection;
|
|
|
2263 rev = c->read;
|
|
|
2264
|
|
326
|
2265 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
2266
|
|
0
|
2267 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "set http keepalive handler");
|
|
|
2268
|
|
326
|
2269 if (r->discard_body) {
|
|
451
|
2270 r->write_event_handler = ngx_http_request_empty_handler;
|
|
326
|
2271 r->lingering_time = ngx_time() + (time_t) (clcf->lingering_time / 1000);
|
|
|
2272 ngx_add_timer(rev, clcf->lingering_timeout);
|
|
|
2273 return;
|
|
|
2274 }
|
|
|
2275
|
|
32
|
2276 c->log->action = "closing request";
|
|
0
|
2277
|
|
|
2278 hc = r->http_connection;
|
|
|
2279 b = r->header_in;
|
|
|
2280
|
|
|
2281 if (b->pos < b->last) {
|
|
|
2282
|
|
|
2283 /* the pipelined request */
|
|
|
2284
|
|
|
2285 if (b != c->buffer) {
|
|
|
2286
|
|
4
|
2287 /*
|
|
|
2288 * If the large header buffers were allocated while the previous
|
|
|
2289 * request processing then we do not use c->buffer for
|
|
|
2290 * the pipelined request (see ngx_http_init_request()).
|
|
126
|
2291 *
|
|
4
|
2292 * Now we would move the large header buffers to the free list.
|
|
|
2293 */
|
|
0
|
2294
|
|
|
2295 cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
|
|
|
2296
|
|
|
2297 if (hc->free == NULL) {
|
|
|
2298 hc->free = ngx_palloc(c->pool,
|
|
|
2299 cscf->large_client_header_buffers.num * sizeof(ngx_buf_t *));
|
|
|
2300
|
|
|
2301 if (hc->free == NULL) {
|
|
26
|
2302 ngx_http_close_request(r, 0);
|
|
0
|
2303 return;
|
|
|
2304 }
|
|
|
2305 }
|
|
|
2306
|
|
|
2307 for (i = 0; i < hc->nbusy - 1; i++) {
|
|
|
2308 f = hc->busy[i];
|
|
|
2309 hc->free[hc->nfree++] = f;
|
|
|
2310 f->pos = f->start;
|
|
|
2311 f->last = f->start;
|
|
|
2312 }
|
|
|
2313
|
|
|
2314 hc->busy[0] = b;
|
|
|
2315 hc->nbusy = 1;
|
|
|
2316 }
|
|
|
2317 }
|
|
|
2318
|
|
118
|
2319 ngx_http_request_done(r, 0);
|
|
|
2320
|
|
0
|
2321 c->data = hc;
|
|
|
2322
|
|
|
2323 ngx_add_timer(rev, clcf->keepalive_timeout);
|
|
|
2324
|
|
439
|
2325 if (ngx_handle_read_event(rev, 0) != NGX_OK) {
|
|
0
|
2326 ngx_http_close_connection(c);
|
|
|
2327 return;
|
|
|
2328 }
|
|
|
2329
|
|
|
2330 wev = c->write;
|
|
58
|
2331 wev->handler = ngx_http_empty_handler;
|
|
0
|
2332
|
|
|
2333 if (b->pos < b->last) {
|
|
|
2334
|
|
|
2335 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "pipelined request");
|
|
|
2336
|
|
116
|
2337 #if (NGX_STAT_STUB)
|
|
511
|
2338 (void) ngx_atomic_fetch_add(ngx_stat_reading, 1);
|
|
116
|
2339 #endif
|
|
|
2340
|
|
0
|
2341 hc->pipeline = 1;
|
|
32
|
2342 c->log->action = "reading client pipelined request line";
|
|
116
|
2343
|
|
376
|
2344 rev->handler = ngx_http_init_request;
|
|
|
2345 ngx_post_event(rev, &ngx_posted_events);
|
|
0
|
2346 return;
|
|
|
2347 }
|
|
|
2348
|
|
|
2349 hc->pipeline = 0;
|
|
|
2350
|
|
4
|
2351 /*
|
|
|
2352 * To keep a memory footprint as small as possible for an idle
|
|
|
2353 * keepalive connection we try to free the ngx_http_request_t and
|
|
|
2354 * c->buffer's memory if they were allocated outside the c->pool.
|
|
|
2355 * The large header buffers are always allocated outside the c->pool and
|
|
|
2356 * are freed too.
|
|
|
2357 */
|
|
|
2358
|
|
0
|
2359 if (ngx_pfree(c->pool, r) == NGX_OK) {
|
|
|
2360 hc->request = NULL;
|
|
|
2361 }
|
|
|
2362
|
|
|
2363 b = c->buffer;
|
|
|
2364
|
|
|
2365 if (ngx_pfree(c->pool, b->start) == NGX_OK) {
|
|
4
|
2366
|
|
|
2367 /*
|
|
|
2368 * the special note for ngx_http_keepalive_handler() that
|
|
|
2369 * c->buffer's memory was freed
|
|
|
2370 */
|
|
|
2371
|
|
0
|
2372 b->pos = NULL;
|
|
|
2373
|
|
|
2374 } else {
|
|
|
2375 b->pos = b->start;
|
|
|
2376 b->last = b->start;
|
|
|
2377 }
|
|
|
2378
|
|
10
|
2379 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, c->log, 0, "hc free: %p %d",
|
|
0
|
2380 hc->free, hc->nfree);
|
|
|
2381
|
|
|
2382 if (hc->free) {
|
|
|
2383 for (i = 0; i < hc->nfree; i++) {
|
|
356
|
2384 ngx_pfree(c->pool, hc->free[i]->start);
|
|
0
|
2385 hc->free[i] = NULL;
|
|
|
2386 }
|
|
|
2387
|
|
|
2388 hc->nfree = 0;
|
|
|
2389 }
|
|
|
2390
|
|
10
|
2391 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, c->log, 0, "hc busy: %p %d",
|
|
0
|
2392 hc->busy, hc->nbusy);
|
|
|
2393
|
|
|
2394 if (hc->busy) {
|
|
|
2395 for (i = 0; i < hc->nbusy; i++) {
|
|
356
|
2396 ngx_pfree(c->pool, hc->busy[i]->start);
|
|
0
|
2397 hc->busy[i] = NULL;
|
|
|
2398 }
|
|
|
2399
|
|
|
2400 hc->nbusy = 0;
|
|
|
2401 }
|
|
|
2402
|
|
358
|
2403 #if (NGX_HTTP_SSL)
|
|
|
2404 if (c->ssl) {
|
|
|
2405 ngx_ssl_free_buffer(c);
|
|
|
2406 }
|
|
|
2407 #endif
|
|
|
2408
|
|
58
|
2409 rev->handler = ngx_http_keepalive_handler;
|
|
0
|
2410
|
|
132
|
2411 if (wev->active && (ngx_event_flags & NGX_USE_LEVEL_EVENT)) {
|
|
439
|
2412 if (ngx_del_event(wev, NGX_WRITE_EVENT, 0) != NGX_OK) {
|
|
132
|
2413 ngx_http_close_connection(c);
|
|
|
2414 return;
|
|
0
|
2415 }
|
|
|
2416 }
|
|
|
2417
|
|
32
|
2418 c->log->action = "keepalive";
|
|
0
|
2419
|
|
|
2420 if (c->tcp_nopush == NGX_TCP_NOPUSH_SET) {
|
|
50
|
2421 if (ngx_tcp_push(c->fd) == -1) {
|
|
0
|
2422 ngx_connection_error(c, ngx_socket_errno, ngx_tcp_push_n " failed");
|
|
|
2423 ngx_http_close_connection(c);
|
|
|
2424 return;
|
|
|
2425 }
|
|
2
|
2426
|
|
0
|
2427 c->tcp_nopush = NGX_TCP_NOPUSH_UNSET;
|
|
22
|
2428 tcp_nodelay = ngx_tcp_nodelay_and_tcp_nopush ? 1 : 0;
|
|
2
|
2429
|
|
|
2430 } else {
|
|
22
|
2431 tcp_nodelay = 1;
|
|
|
2432 }
|
|
|
2433
|
|
32
|
2434 if (tcp_nodelay
|
|
|
2435 && clcf->tcp_nodelay
|
|
|
2436 && c->tcp_nodelay == NGX_TCP_NODELAY_UNSET)
|
|
|
2437 {
|
|
22
|
2438 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "tcp_nodelay");
|
|
|
2439
|
|
|
2440 if (setsockopt(c->fd, IPPROTO_TCP, TCP_NODELAY,
|
|
184
|
2441 (const void *) &tcp_nodelay, sizeof(int))
|
|
|
2442 == -1)
|
|
22
|
2443 {
|
|
469
|
2444 #if (NGX_SOLARIS)
|
|
|
2445 /* Solaris returns EINVAL if a socket has been shut down */
|
|
|
2446 c->log_error = NGX_ERROR_IGNORE_EINVAL;
|
|
|
2447 #endif
|
|
|
2448
|
|
22
|
2449 ngx_connection_error(c, ngx_socket_errno,
|
|
|
2450 "setsockopt(TCP_NODELAY) failed");
|
|
469
|
2451
|
|
|
2452 c->log_error = NGX_ERROR_INFO;
|
|
22
|
2453 ngx_http_close_connection(c);
|
|
|
2454 return;
|
|
2
|
2455 }
|
|
22
|
2456
|
|
32
|
2457 c->tcp_nodelay = NGX_TCP_NODELAY_SET;
|
|
0
|
2458 }
|
|
|
2459
|
|
|
2460 #if 0
|
|
4
|
2461 /* if ngx_http_request_t was freed then we need some other place */
|
|
0
|
2462 r->http_state = NGX_HTTP_KEEPALIVE_STATE;
|
|
|
2463 #endif
|
|
|
2464
|
|
290
|
2465 c->idle = 1;
|
|
|
2466
|
|
0
|
2467 if (rev->ready) {
|
|
376
|
2468 ngx_post_event(rev, &ngx_posted_events);
|
|
0
|
2469 }
|
|
|
2470 }
|
|
|
2471
|
|
|
2472
|
|
50
|
2473 static void
|
|
|
2474 ngx_http_keepalive_handler(ngx_event_t *rev)
|
|
0
|
2475 {
|
|
50
|
2476 size_t size;
|
|
|
2477 ssize_t n;
|
|
|
2478 ngx_buf_t *b;
|
|
|
2479 ngx_connection_t *c;
|
|
0
|
2480
|
|
|
2481 c = rev->data;
|
|
|
2482
|
|
|
2483 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "http keepalive handler");
|
|
|
2484
|
|
290
|
2485 if (rev->timedout || c->close) {
|
|
0
|
2486 ngx_http_close_connection(c);
|
|
|
2487 return;
|
|
|
2488 }
|
|
|
2489
|
|
18
|
2490 #if (NGX_HAVE_KQUEUE)
|
|
0
|
2491
|
|
4
|
2492 if (ngx_event_flags & NGX_USE_KQUEUE_EVENT) {
|
|
136
|
2493 if (rev->pending_eof) {
|
|
32
|
2494 c->log->handler = NULL;
|
|
0
|
2495 ngx_log_error(NGX_LOG_INFO, c->log, rev->kq_errno,
|
|
10
|
2496 "kevent() reported that client %V closed "
|
|
32
|
2497 "keepalive connection", &c->addr_text);
|
|
22
|
2498 #if (NGX_HTTP_SSL)
|
|
|
2499 if (c->ssl) {
|
|
96
|
2500 c->ssl->no_send_shutdown = 1;
|
|
22
|
2501 }
|
|
|
2502 #endif
|
|
0
|
2503 ngx_http_close_connection(c);
|
|
|
2504 return;
|
|
|
2505 }
|
|
|
2506 }
|
|
|
2507
|
|
|
2508 #endif
|
|
|
2509
|
|
|
2510 b = c->buffer;
|
|
|
2511 size = b->end - b->start;
|
|
|
2512
|
|
|
2513 if (b->pos == NULL) {
|
|
4
|
2514
|
|
|
2515 /*
|
|
|
2516 * The c->buffer's memory was freed by ngx_http_set_keepalive().
|
|
|
2517 * However, the c->buffer->start and c->buffer->end were not changed
|
|
|
2518 * to keep the buffer size.
|
|
|
2519 */
|
|
|
2520
|
|
50
|
2521 b->pos = ngx_palloc(c->pool, size);
|
|
|
2522 if (b->pos == NULL) {
|
|
0
|
2523 ngx_http_close_connection(c);
|
|
|
2524 return;
|
|
|
2525 }
|
|
|
2526
|
|
|
2527 b->start = b->pos;
|
|
|
2528 b->last = b->pos;
|
|
|
2529 b->end = b->pos + size;
|
|
|
2530 }
|
|
|
2531
|
|
|
2532 /*
|
|
|
2533 * MSIE closes a keepalive connection with RST flag
|
|
|
2534 * so we ignore ECONNRESET here.
|
|
|
2535 */
|
|
|
2536
|
|
|
2537 c->log_error = NGX_ERROR_IGNORE_ECONNRESET;
|
|
|
2538 ngx_set_socket_errno(0);
|
|
|
2539
|
|
|
2540 n = c->recv(c, b->last, size);
|
|
|
2541 c->log_error = NGX_ERROR_INFO;
|
|
|
2542
|
|
|
2543 if (n == NGX_AGAIN) {
|
|
439
|
2544 if (ngx_handle_read_event(rev, 0) != NGX_OK) {
|
|
24
|
2545 ngx_http_close_connection(c);
|
|
|
2546 }
|
|
|
2547
|
|
0
|
2548 return;
|
|
|
2549 }
|
|
|
2550
|
|
|
2551 if (n == NGX_ERROR) {
|
|
|
2552 ngx_http_close_connection(c);
|
|
|
2553 return;
|
|
|
2554 }
|
|
|
2555
|
|
32
|
2556 c->log->handler = NULL;
|
|
0
|
2557
|
|
|
2558 if (n == 0) {
|
|
|
2559 ngx_log_error(NGX_LOG_INFO, c->log, ngx_socket_errno,
|
|
32
|
2560 "client %V closed keepalive connection", &c->addr_text);
|
|
0
|
2561 ngx_http_close_connection(c);
|
|
|
2562 return;
|
|
|
2563 }
|
|
|
2564
|
|
|
2565 b->last += n;
|
|
32
|
2566
|
|
116
|
2567 #if (NGX_STAT_STUB)
|
|
511
|
2568 (void) ngx_atomic_fetch_add(ngx_stat_reading, 1);
|
|
116
|
2569 #endif
|
|
|
2570
|
|
32
|
2571 c->log->handler = ngx_http_log_error;
|
|
|
2572 c->log->action = "reading client request line";
|
|
0
|
2573
|
|
290
|
2574 c->idle = 0;
|
|
|
2575
|
|
0
|
2576 ngx_http_init_request(rev);
|
|
|
2577 }
|
|
|
2578
|
|
|
2579
|
|
50
|
2580 static void
|
|
|
2581 ngx_http_set_lingering_close(ngx_http_request_t *r)
|
|
126
|
2582 {
|
|
0
|
2583 ngx_event_t *rev, *wev;
|
|
|
2584 ngx_connection_t *c;
|
|
|
2585 ngx_http_core_loc_conf_t *clcf;
|
|
|
2586
|
|
|
2587 c = r->connection;
|
|
|
2588
|
|
|
2589 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
2590
|
|
|
2591 rev = c->read;
|
|
58
|
2592 rev->handler = ngx_http_lingering_close_handler;
|
|
0
|
2593
|
|
106
|
2594 r->lingering_time = ngx_time() + (time_t) (clcf->lingering_time / 1000);
|
|
0
|
2595 ngx_add_timer(rev, clcf->lingering_timeout);
|
|
|
2596
|
|
439
|
2597 if (ngx_handle_read_event(rev, 0) != NGX_OK) {
|
|
0
|
2598 ngx_http_close_request(r, 0);
|
|
|
2599 return;
|
|
|
2600 }
|
|
|
2601
|
|
|
2602 wev = c->write;
|
|
58
|
2603 wev->handler = ngx_http_empty_handler;
|
|
0
|
2604
|
|
132
|
2605 if (wev->active && (ngx_event_flags & NGX_USE_LEVEL_EVENT)) {
|
|
439
|
2606 if (ngx_del_event(wev, NGX_WRITE_EVENT, 0) != NGX_OK) {
|
|
132
|
2607 ngx_http_close_request(r, 0);
|
|
|
2608 return;
|
|
0
|
2609 }
|
|
|
2610 }
|
|
|
2611
|
|
|
2612 if (ngx_shutdown_socket(c->fd, NGX_WRITE_SHUTDOWN) == -1) {
|
|
|
2613 ngx_connection_error(c, ngx_socket_errno,
|
|
|
2614 ngx_shutdown_socket_n " failed");
|
|
|
2615 ngx_http_close_request(r, 0);
|
|
|
2616 return;
|
|
|
2617 }
|
|
|
2618
|
|
|
2619 if (rev->ready) {
|
|
|
2620 ngx_http_lingering_close_handler(rev);
|
|
|
2621 }
|
|
|
2622 }
|
|
|
2623
|
|
|
2624
|
|
50
|
2625 static void
|
|
|
2626 ngx_http_lingering_close_handler(ngx_event_t *rev)
|
|
0
|
2627 {
|
|
|
2628 ssize_t n;
|
|
|
2629 ngx_msec_t timer;
|
|
|
2630 ngx_connection_t *c;
|
|
|
2631 ngx_http_request_t *r;
|
|
|
2632 ngx_http_core_loc_conf_t *clcf;
|
|
|
2633 u_char buffer[NGX_HTTP_LINGERING_BUFFER_SIZE];
|
|
|
2634
|
|
|
2635 c = rev->data;
|
|
|
2636 r = c->data;
|
|
|
2637
|
|
|
2638 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
|
2639 "http lingering close handler");
|
|
|
2640
|
|
|
2641 if (rev->timedout) {
|
|
126
|
2642 c->timedout = 1;
|
|
0
|
2643 ngx_http_close_request(r, 0);
|
|
|
2644 return;
|
|
|
2645 }
|
|
|
2646
|
|
346
|
2647 timer = (ngx_msec_t) (r->lingering_time - ngx_time());
|
|
0
|
2648 if (timer <= 0) {
|
|
|
2649 ngx_http_close_request(r, 0);
|
|
|
2650 return;
|
|
|
2651 }
|
|
|
2652
|
|
|
2653 do {
|
|
|
2654 n = c->recv(c, buffer, NGX_HTTP_LINGERING_BUFFER_SIZE);
|
|
|
2655
|
|
|
2656 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0, "lingering read: %d", n);
|
|
|
2657
|
|
|
2658 if (n == NGX_ERROR || n == 0) {
|
|
|
2659 ngx_http_close_request(r, 0);
|
|
|
2660 return;
|
|
|
2661 }
|
|
|
2662
|
|
|
2663 } while (rev->ready);
|
|
|
2664
|
|
439
|
2665 if (ngx_handle_read_event(rev, 0) != NGX_OK) {
|
|
26
|
2666 ngx_http_close_request(r, 0);
|
|
24
|
2667 return;
|
|
|
2668 }
|
|
|
2669
|
|
0
|
2670 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
2671
|
|
|
2672 timer *= 1000;
|
|
|
2673
|
|
|
2674 if (timer > clcf->lingering_timeout) {
|
|
|
2675 timer = clcf->lingering_timeout;
|
|
|
2676 }
|
|
|
2677
|
|
|
2678 ngx_add_timer(rev, timer);
|
|
|
2679 }
|
|
|
2680
|
|
|
2681
|
|
50
|
2682 void
|
|
|
2683 ngx_http_empty_handler(ngx_event_t *wev)
|
|
0
|
2684 {
|
|
|
2685 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, wev->log, 0, "http empty handler");
|
|
|
2686
|
|
|
2687 return;
|
|
|
2688 }
|
|
|
2689
|
|
|
2690
|
|
58
|
2691 void
|
|
|
2692 ngx_http_request_empty_handler(ngx_http_request_t *r)
|
|
|
2693 {
|
|
|
2694 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
132
|
2695 "http request empty handler");
|
|
58
|
2696
|
|
|
2697 return;
|
|
|
2698 }
|
|
|
2699
|
|
|
2700
|
|
50
|
2701 ngx_int_t
|
|
130
|
2702 ngx_http_send_special(ngx_http_request_t *r, ngx_uint_t flags)
|
|
0
|
2703 {
|
|
|
2704 ngx_buf_t *b;
|
|
|
2705 ngx_chain_t out;
|
|
|
2706
|
|
50
|
2707 b = ngx_calloc_buf(r->pool);
|
|
|
2708 if (b == NULL) {
|
|
0
|
2709 return NGX_ERROR;
|
|
|
2710 }
|
|
|
2711
|
|
130
|
2712 if (flags & NGX_HTTP_LAST) {
|
|
515
|
2713
|
|
|
2714 if (r == r->main && !r->post_action) {
|
|
|
2715 b->last_buf = 1;
|
|
|
2716
|
|
|
2717 } else {
|
|
|
2718 b->last_in_chain = 1;
|
|
|
2719 }
|
|
130
|
2720 }
|
|
|
2721
|
|
|
2722 if (flags & NGX_HTTP_FLUSH) {
|
|
|
2723 b->flush = 1;
|
|
|
2724 }
|
|
|
2725
|
|
0
|
2726 out.buf = b;
|
|
|
2727 out.next = NULL;
|
|
|
2728
|
|
|
2729 return ngx_http_output_filter(r, &out);
|
|
|
2730 }
|
|
|
2731
|
|
|
2732
|
|
162
|
2733 static ngx_int_t
|
|
|
2734 ngx_http_post_action(ngx_http_request_t *r)
|
|
|
2735 {
|
|
|
2736 ngx_http_core_loc_conf_t *clcf;
|
|
|
2737
|
|
|
2738 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
2739
|
|
|
2740 if (clcf->post_action.data == NULL) {
|
|
|
2741 return NGX_DECLINED;
|
|
|
2742 }
|
|
|
2743
|
|
172
|
2744 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
2745 "post action: \"%V\"", &clcf->post_action);
|
|
|
2746
|
|
162
|
2747 r->http_version = NGX_HTTP_VERSION_9;
|
|
|
2748 r->header_only = 1;
|
|
178
|
2749 r->post_action = 1;
|
|
162
|
2750
|
|
326
|
2751 r->read_event_handler = ngx_http_block_reading;
|
|
262
|
2752
|
|
366
|
2753 if (clcf->post_action.data[0] == '/') {
|
|
|
2754 ngx_http_internal_redirect(r, &clcf->post_action, NULL);
|
|
|
2755
|
|
|
2756 } else {
|
|
|
2757 ngx_http_named_location(r, &clcf->post_action);
|
|
|
2758 }
|
|
162
|
2759
|
|
|
2760 return NGX_OK;
|
|
|
2761 }
|
|
|
2762
|
|
|
2763
|
|
|
2764 static void
|
|
58
|
2765 ngx_http_close_request(ngx_http_request_t *r, ngx_int_t error)
|
|
0
|
2766 {
|
|
188
|
2767 ngx_connection_t *c;
|
|
118
|
2768
|
|
|
2769 c = r->connection;
|
|
188
|
2770
|
|
|
2771 ngx_http_request_done(r->main, error);
|
|
118
|
2772 ngx_http_close_connection(c);
|
|
|
2773 }
|
|
|
2774
|
|
|
2775
|
|
162
|
2776 static void
|
|
118
|
2777 ngx_http_request_done(ngx_http_request_t *r, ngx_int_t error)
|
|
|
2778 {
|
|
420
|
2779 ngx_log_t *log;
|
|
|
2780 struct linger linger;
|
|
|
2781 ngx_http_cleanup_t *cln;
|
|
|
2782 ngx_http_log_ctx_t *ctx;
|
|
|
2783 ngx_http_core_loc_conf_t *clcf;
|
|
0
|
2784
|
|
|
2785 log = r->connection->log;
|
|
|
2786
|
|
|
2787 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, log, 0, "http close request");
|
|
|
2788
|
|
|
2789 if (r->pool == NULL) {
|
|
80
|
2790 ngx_log_error(NGX_LOG_ALERT, log, 0, "http request already closed");
|
|
0
|
2791 return;
|
|
|
2792 }
|
|
|
2793
|
|
188
|
2794 for (cln = r->cleanup; cln; cln = cln->next) {
|
|
|
2795 if (cln->handler) {
|
|
|
2796 cln->handler(cln->data);
|
|
|
2797 }
|
|
|
2798 }
|
|
|
2799
|
|
0
|
2800 #if (NGX_STAT_STUB)
|
|
116
|
2801
|
|
0
|
2802 if (r->stat_reading) {
|
|
511
|
2803 (void) ngx_atomic_fetch_add(ngx_stat_reading, -1);
|
|
0
|
2804 }
|
|
|
2805
|
|
|
2806 if (r->stat_writing) {
|
|
511
|
2807 (void) ngx_atomic_fetch_add(ngx_stat_writing, -1);
|
|
0
|
2808 }
|
|
116
|
2809
|
|
0
|
2810 #endif
|
|
|
2811
|
|
|
2812 if (error && r->headers_out.status == 0) {
|
|
|
2813 r->headers_out.status = error;
|
|
|
2814 }
|
|
|
2815
|
|
386
|
2816 log->action = "logging request";
|
|
|
2817
|
|
420
|
2818 ngx_http_log_request(r);
|
|
0
|
2819
|
|
386
|
2820 log->action = "closing request";
|
|
|
2821
|
|
0
|
2822 if (r->connection->timedout) {
|
|
|
2823 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
2824
|
|
|
2825 if (clcf->reset_timedout_connection) {
|
|
58
|
2826 linger.l_onoff = 1;
|
|
|
2827 linger.l_linger = 0;
|
|
0
|
2828
|
|
|
2829 if (setsockopt(r->connection->fd, SOL_SOCKET, SO_LINGER,
|
|
58
|
2830 (const void *) &linger, sizeof(struct linger)) == -1)
|
|
0
|
2831 {
|
|
|
2832 ngx_log_error(NGX_LOG_ALERT, log, ngx_socket_errno,
|
|
|
2833 "setsockopt(SO_LINGER) failed");
|
|
|
2834 }
|
|
|
2835 }
|
|
|
2836 }
|
|
|
2837
|
|
58
|
2838 /* the various request strings were allocated from r->pool */
|
|
0
|
2839 ctx = log->data;
|
|
10
|
2840 ctx->request = NULL;
|
|
0
|
2841
|
|
|
2842 r->request_line.len = 0;
|
|
|
2843
|
|
132
|
2844 r->connection->destroyed = 1;
|
|
|
2845
|
|
0
|
2846 ngx_destroy_pool(r->pool);
|
|
|
2847 }
|
|
|
2848
|
|
|
2849
|
|
80
|
2850 static void
|
|
420
|
2851 ngx_http_log_request(ngx_http_request_t *r)
|
|
|
2852 {
|
|
|
2853 ngx_uint_t i, n;
|
|
|
2854 ngx_http_handler_pt *log_handler;
|
|
|
2855 ngx_http_core_main_conf_t *cmcf;
|
|
|
2856
|
|
|
2857 cmcf = ngx_http_get_module_main_conf(r, ngx_http_core_module);
|
|
|
2858
|
|
|
2859 log_handler = cmcf->phases[NGX_HTTP_LOG_PHASE].handlers.elts;
|
|
|
2860 n = cmcf->phases[NGX_HTTP_LOG_PHASE].handlers.nelts;
|
|
|
2861
|
|
|
2862 for (i = 0; i < n; i++) {
|
|
|
2863 log_handler[i](r);
|
|
|
2864 }
|
|
|
2865 }
|
|
|
2866
|
|
|
2867
|
|
|
2868 static void
|
|
50
|
2869 ngx_http_close_connection(ngx_connection_t *c)
|
|
0
|
2870 {
|
|
28
|
2871 ngx_pool_t *pool;
|
|
|
2872
|
|
0
|
2873 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
|
2874 "close http connection: %d", c->fd);
|
|
|
2875
|
|
88
|
2876 #if (NGX_HTTP_SSL)
|
|
2
|
2877
|
|
|
2878 if (c->ssl) {
|
|
|
2879 if (ngx_ssl_shutdown(c) == NGX_AGAIN) {
|
|
126
|
2880 c->ssl->handler = ngx_http_close_connection;
|
|
2
|
2881 return;
|
|
|
2882 }
|
|
|
2883 }
|
|
|
2884
|
|
|
2885 #endif
|
|
|
2886
|
|
0
|
2887 #if (NGX_STAT_STUB)
|
|
511
|
2888 (void) ngx_atomic_fetch_add(ngx_stat_active, -1);
|
|
0
|
2889 #endif
|
|
|
2890
|
|
132
|
2891 c->destroyed = 1;
|
|
|
2892
|
|
28
|
2893 pool = c->pool;
|
|
|
2894
|
|
0
|
2895 ngx_close_connection(c);
|
|
28
|
2896
|
|
50
|
2897 ngx_destroy_pool(pool);
|
|
0
|
2898 }
|
|
|
2899
|
|
|
2900
|
|
50
|
2901 static u_char *
|
|
|
2902 ngx_http_log_error(ngx_log_t *log, u_char *buf, size_t len)
|
|
0
|
2903 {
|
|
32
|
2904 u_char *p;
|
|
54
|
2905 ngx_http_request_t *r;
|
|
32
|
2906 ngx_http_log_ctx_t *ctx;
|
|
10
|
2907
|
|
32
|
2908 if (log->action) {
|
|
58
|
2909 p = ngx_snprintf(buf, len, " while %s", log->action);
|
|
10
|
2910 len -= p - buf;
|
|
54
|
2911 buf = p;
|
|
10
|
2912 }
|
|
|
2913
|
|
58
|
2914 ctx = log->data;
|
|
|
2915
|
|
362
|
2916 p = ngx_snprintf(buf, len, ", client: %V", &ctx->connection->addr_text);
|
|
58
|
2917 len -= p - buf;
|
|
54
|
2918
|
|
|
2919 r = ctx->request;
|
|
|
2920
|
|
58
|
2921 if (r) {
|
|
214
|
2922 return r->log_handler(r, ctx->current_request, p, len);
|
|
362
|
2923
|
|
|
2924 } else {
|
|
|
2925 p = ngx_snprintf(p, len, ", server: %V",
|
|
|
2926 &ctx->connection->listening->addr_text);
|
|
0
|
2927 }
|
|
10
|
2928
|
|
58
|
2929 return p;
|
|
|
2930 }
|
|
|
2931
|
|
|
2932
|
|
|
2933 static u_char *
|
|
214
|
2934 ngx_http_log_error_handler(ngx_http_request_t *r, ngx_http_request_t *sr,
|
|
|
2935 u_char *buf, size_t len)
|
|
58
|
2936 {
|
|
362
|
2937 char *uri_separator;
|
|
|
2938 u_char *p;
|
|
|
2939 ngx_http_upstream_t *u;
|
|
|
2940 ngx_http_core_srv_conf_t *cscf;
|
|
|
2941
|
|
|
2942 cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
|
|
|
2943
|
|
|
2944 p = ngx_snprintf(buf, len, ", server: %V", &cscf->server_name);
|
|
|
2945 len -= p - buf;
|
|
|
2946 buf = p;
|
|
52
|
2947
|
|
348
|
2948 if (r->request_line.data == NULL && r->request_start) {
|
|
|
2949 for (p = r->request_start; p < r->header_in->last; p++) {
|
|
|
2950 if (*p == CR || *p == LF) {
|
|
|
2951 break;
|
|
|
2952 }
|
|
|
2953 }
|
|
|
2954
|
|
|
2955 r->request_line.len = p - r->request_start;
|
|
|
2956 r->request_line.data = r->request_start;
|
|
|
2957 }
|
|
|
2958
|
|
|
2959 if (r->request_line.len) {
|
|
|
2960 p = ngx_snprintf(buf, len, ", request: \"%V\"", &r->request_line);
|
|
54
|
2961 len -= p - buf;
|
|
|
2962 buf = p;
|
|
10
|
2963 }
|
|
|
2964
|
|
214
|
2965 if (r != sr) {
|
|
|
2966 p = ngx_snprintf(buf, len, ", subrequest: \"%V\"", &sr->uri);
|
|
|
2967 len -= p - buf;
|
|
|
2968 buf = p;
|
|
|
2969 }
|
|
|
2970
|
|
|
2971 u = sr->upstream;
|
|
|
2972
|
|
260
|
2973 if (u && u->peer.name) {
|
|
|
2974
|
|
|
2975 uri_separator = "";
|
|
|
2976
|
|
|
2977 #if (NGX_HAVE_UNIX_DOMAIN)
|
|
|
2978 if (u->peer.sockaddr && u->peer.sockaddr->sa_family == AF_UNIX) {
|
|
|
2979 uri_separator = ":";
|
|
|
2980 }
|
|
|
2981 #endif
|
|
214
|
2982
|
|
|
2983 p = ngx_snprintf(buf, len, ", upstream: \"%V%V%s%V\"",
|
|
348
|
2984 &u->schema, u->peer.name,
|
|
260
|
2985 uri_separator, &u->uri);
|
|
214
|
2986 len -= p - buf;
|
|
|
2987 buf = p;
|
|
|
2988 }
|
|
|
2989
|
|
54
|
2990 if (r->headers_in.host) {
|
|
|
2991 p = ngx_snprintf(buf, len, ", host: \"%V\"",
|
|
|
2992 &r->headers_in.host->value);
|
|
|
2993 len -= p - buf;
|
|
|
2994 buf = p;
|
|
|
2995 }
|
|
|
2996
|
|
|
2997 if (r->headers_in.referer) {
|
|
|
2998 p = ngx_snprintf(buf, len, ", referrer: \"%V\"",
|
|
|
2999 &r->headers_in.referer->value);
|
|
|
3000 buf = p;
|
|
|
3001 }
|
|
|
3002
|
|
|
3003 return buf;
|
|
|
3004 }
|
