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