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