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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58
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24 static ngx_int_t ngx_http_process_cookie(ngx_http_request_t *r,
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25 ngx_table_elt_t *h, ngx_uint_t offset);
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26
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0
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27 static ngx_int_t ngx_http_process_request_header(ngx_http_request_t *r);
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162
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28 static void ngx_http_find_virtual_server(ngx_http_request_t *r);
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0
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29
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58
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30 static void ngx_http_request_handler(ngx_event_t *ev);
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74
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31 static ngx_int_t ngx_http_set_write_handler(ngx_http_request_t *r);
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58
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32 static void ngx_http_writer(ngx_http_request_t *r);
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33
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34 static void ngx_http_block_read(ngx_http_request_t *r);
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35 static void ngx_http_read_discarded_body_handler(ngx_http_request_t *r);
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0
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36 static ngx_int_t ngx_http_read_discarded_body(ngx_http_request_t *r);
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37
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38 static void ngx_http_set_keepalive(ngx_http_request_t *r);
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39 static void ngx_http_keepalive_handler(ngx_event_t *ev);
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40 static void ngx_http_set_lingering_close(ngx_http_request_t *r);
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41 static void ngx_http_lingering_close_handler(ngx_event_t *ev);
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162
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42 static ngx_int_t ngx_http_post_action(ngx_http_request_t *r);
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80
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43 static void ngx_http_close_request(ngx_http_request_t *r, ngx_int_t error);
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118
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44 static void ngx_http_request_done(ngx_http_request_t *r, ngx_int_t error);
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80
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45 static void ngx_http_close_connection(ngx_connection_t *c);
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0
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46
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32
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47 static u_char *ngx_http_log_error(ngx_log_t *log, u_char *buf, size_t len);
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58
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48 static u_char *ngx_http_log_error_handler(ngx_http_request_t *r, u_char *buf,
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49 size_t len);
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0
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50
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88
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51 #if (NGX_HTTP_SSL)
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52 static void ngx_http_ssl_handshake(ngx_event_t *rev);
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96
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53 static void ngx_http_ssl_handshake_handler(ngx_connection_t *c);
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88
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54 #endif
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55
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0
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56
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54
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57 static char *ngx_http_client_errors[] = {
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58
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59 /* NGX_HTTP_PARSE_INVALID_METHOD */
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60 "client sent invalid method",
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61
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62 /* NGX_HTTP_PARSE_INVALID_REQUEST */
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63 "client sent invalid request",
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64
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65 /* NGX_HTTP_PARSE_INVALID_09_METHOD */
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66 "client sent invalid method in HTTP/0.9 request"
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0
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67 };
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68
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69
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70 ngx_http_header_t ngx_http_headers_in[] = {
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58
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71 { ngx_string("Host"), offsetof(ngx_http_headers_in_t, host),
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72
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72 ngx_http_process_unique_header_line },
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58
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73
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74 { ngx_string("Connection"), offsetof(ngx_http_headers_in_t, connection),
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72
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75 ngx_http_process_unique_header_line },
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58
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76
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0
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77 { ngx_string("If-Modified-Since"),
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58
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78 offsetof(ngx_http_headers_in_t, if_modified_since),
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79 ngx_http_process_header_line },
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80
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81 { ngx_string("User-Agent"), offsetof(ngx_http_headers_in_t, user_agent),
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82 ngx_http_process_header_line },
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83
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84 { ngx_string("Referer"), offsetof(ngx_http_headers_in_t, referer),
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85 ngx_http_process_header_line },
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86
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0
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87 { ngx_string("Content-Length"),
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58
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88 offsetof(ngx_http_headers_in_t, content_length),
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72
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89 ngx_http_process_unique_header_line },
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58
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90
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28
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91 { ngx_string("Content-Type"),
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58
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92 offsetof(ngx_http_headers_in_t, content_type),
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93 ngx_http_process_header_line },
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94
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95 { ngx_string("Range"), offsetof(ngx_http_headers_in_t, range),
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96 ngx_http_process_header_line },
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97
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130
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98 { ngx_string("Transfer-Encoding"),
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99 offsetof(ngx_http_headers_in_t, transfer_encoding),
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100 ngx_http_process_header_line },
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101
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0
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102 #if (NGX_HTTP_GZIP)
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103 { ngx_string("Accept-Encoding"),
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58
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104 offsetof(ngx_http_headers_in_t, accept_encoding),
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105 ngx_http_process_header_line },
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106
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107 { ngx_string("Via"), offsetof(ngx_http_headers_in_t, via),
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108 ngx_http_process_header_line },
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0
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109 #endif
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110
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111 { ngx_string("Authorization"),
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112 offsetof(ngx_http_headers_in_t, authorization),
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72
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113 ngx_http_process_unique_header_line },
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58
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114
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115 { ngx_string("Keep-Alive"), offsetof(ngx_http_headers_in_t, keep_alive),
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116 ngx_http_process_header_line },
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0
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117
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122
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118 #if (NGX_HTTP_PROXY || NGX_HTTP_REALIP)
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119 { ngx_string("X-Forwarded-For"),
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120 offsetof(ngx_http_headers_in_t, x_forwarded_for),
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121 ngx_http_process_header_line },
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0
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122 #endif
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28
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123
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122
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124 #if (NGX_HTTP_REALIP)
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125 { ngx_string("X-Real-IP"),
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126 offsetof(ngx_http_headers_in_t, x_real_ip),
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127 ngx_http_process_header_line },
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128 #endif
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129
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38
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130 #if (NGX_HTTP_HEADERS)
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131 { ngx_string("Accept"), offsetof(ngx_http_headers_in_t, accept),
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132 ngx_http_process_header_line },
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133
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38
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134 { ngx_string("Accept-Language"),
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58
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135 offsetof(ngx_http_headers_in_t, accept_language),
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136 ngx_http_process_header_line },
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38
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137 #endif
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138
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58
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139 { ngx_string("Cookie"), 0, ngx_http_process_cookie },
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140
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141 { ngx_null_string, 0, NULL }
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0
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142 };
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143
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144
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50
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145 void
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146 ngx_http_init_connection(ngx_connection_t *c)
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147 {
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148 ngx_event_t *rev;
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149 ngx_http_log_ctx_t *ctx;
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150
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50
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151 ctx = ngx_palloc(c->pool, sizeof(ngx_http_log_ctx_t));
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152 if (ctx == NULL) {
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0
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153 ngx_http_close_connection(c);
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154 return;
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155 }
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156
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10
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157 ctx->client = &c->addr_text;
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158 ctx->request = NULL;
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32
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159
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160 c->log->connection = c->number;
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161 c->log->handler = ngx_http_log_error;
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162 c->log->data = ctx;
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32
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163 c->log->action = "reading client request line";
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164
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0
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165 c->log_error = NGX_ERROR_INFO;
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166
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167 rev = c->read;
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168 rev->handler = ngx_http_init_request;
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118
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169 c->write->handler = ngx_http_empty_handler;
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170
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116
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171 #if (NGX_STAT_STUB)
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172 ngx_atomic_fetch_add(ngx_stat_reading, 1);
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173 #endif
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174
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175 if (rev->ready) {
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176 /* the deferred accept(), rtsig, aio, iocp */
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177
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160
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178 if (ngx_use_accept_mutex) {
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112
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179 ngx_post_event(rev, &ngx_posted_events);
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180 return;
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181 }
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182
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183 ngx_http_init_request(rev);
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184 return;
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185 }
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186
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187 ngx_add_timer(rev, c->listening->post_accept_timeout);
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188
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189 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) {
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116
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190 #if (NGX_STAT_STUB)
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191 ngx_atomic_fetch_add(ngx_stat_reading, -1);
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192 #endif
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193 ngx_http_close_connection(c);
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194 return;
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195 }
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196 }
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197
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198
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199 static
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200 void ngx_http_init_request(ngx_event_t *rev)
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0
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201 {
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122
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202 ngx_uint_t i;
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203 socklen_t len;
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204 struct sockaddr_in sin;
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205 ngx_connection_t *c;
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206 ngx_http_request_t *r;
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142
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207 ngx_http_in_port_t *hip;
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208 ngx_http_in_addr_t *hia;
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122
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209 ngx_http_log_ctx_t *ctx;
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210 ngx_http_connection_t *hc;
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211 ngx_http_core_srv_conf_t *cscf;
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212 ngx_http_core_loc_conf_t *clcf;
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213 ngx_http_core_main_conf_t *cmcf;
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214 #if (NGX_HTTP_SSL)
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122
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215 ngx_http_ssl_srv_conf_t *sscf;
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216 #endif
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217
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116
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218 #if (NGX_STAT_STUB)
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219 ngx_atomic_fetch_add(ngx_stat_reading, -1);
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220 #endif
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221
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222 c = rev->data;
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223
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224 if (rev->timedout) {
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225 ngx_log_error(NGX_LOG_INFO, c->log, NGX_ETIMEDOUT, "client timed out");
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226
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227 ngx_http_close_connection(c);
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228 return;
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229 }
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230
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231 hc = c->data;
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232
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116
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233 if (hc == NULL) {
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234 hc = ngx_pcalloc(c->pool, sizeof(ngx_http_connection_t));
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235 if (hc == NULL) {
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236 ngx_http_close_connection(c);
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237 return;
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238 }
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239 }
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240
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241 r = hc->request;
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242
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243 if (r) {
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244 ngx_memzero(r, sizeof(ngx_http_request_t));
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245
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246 r->pipeline = hc->pipeline;
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247
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248 if (hc->nbusy) {
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249 r->header_in = hc->busy[0];
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250 }
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251
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252 } else {
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253 r = ngx_pcalloc(c->pool, sizeof(ngx_http_request_t));
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254 if (r == NULL) {
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0
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255 ngx_http_close_connection(c);
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256 return;
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257 }
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258
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259 hc->request = r;
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260 }
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261
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262 c->data = r;
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263 r->http_connection = hc;
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264
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265 c->sent = 0;
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266 r->signature = NGX_HTTP_MODULE;
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267
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268 /* find the server configuration for the address:port */
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269
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270 /* AF_INET only */
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271
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142
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272 hip = c->servers;
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273 hia = hip->addrs;
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274
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275 r->port = hip->port;
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276 r->port_text = &hip->port_text;
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0
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277
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278 i = 0;
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279
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142
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280 if (hip->naddrs > 1) {
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0
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281
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282 /*
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283 * There are several addresses on this port and one of them
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284 * is the "*:port" wildcard so getsockname() is needed to determine
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285 * the server address.
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286 *
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287 * AcceptEx() already gave this address.
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288 */
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289
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10
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290 #if (NGX_WIN32)
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0
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291 if (c->local_sockaddr) {
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292 r->in_addr =
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293 ((struct sockaddr_in *) c->local_sockaddr)->sin_addr.s_addr;
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294
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28
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295 } else
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0
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296 #endif
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28
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297 {
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0
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298 len = sizeof(struct sockaddr_in);
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28
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299 if (getsockname(c->fd, (struct sockaddr *) &sin, &len) == -1) {
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0
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300 ngx_connection_error(c, ngx_socket_errno,
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301 "getsockname() failed");
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302 ngx_http_close_connection(c);
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303 return;
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304 }
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305
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28
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306 r->in_addr = sin.sin_addr.s_addr;
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0
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307 }
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308
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309 /* the last in_port->addrs address is "*" */
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310
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142
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311 for ( /* void */ ; i < hip->naddrs - 1; i++) {
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312 if (hia[i].addr == r->in_addr) {
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0
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313 break;
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314 }
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315 }
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316
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317 } else {
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142
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318 r->in_addr = hia[0].addr;
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0
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319 }
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320
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142
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321 r->virtual_names = hia[i].virtual_names;
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0
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322
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323 /* the default server configuration for the address:port */
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142
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324 cscf = hia[i].core_srv_conf;
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0
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325
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326 r->main_conf = cscf->ctx->main_conf;
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327 r->srv_conf = cscf->ctx->srv_conf;
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328 r->loc_conf = cscf->ctx->loc_conf;
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329
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142
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330 r->server_name = cscf->server_name;
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331
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58
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332 rev->handler = ngx_http_process_request_line;
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0
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333
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334 #if (NGX_HTTP_SSL)
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335
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336 sscf = ngx_http_get_module_srv_conf(r, ngx_http_ssl_module);
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337 if (sscf->enable) {
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338
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339 if (c->ssl == NULL) {
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96
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340 if (ngx_ssl_create_connection(&sscf->ssl, c, NGX_SSL_BUFFER)
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56
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341 == NGX_ERROR)
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0
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342 {
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343 ngx_http_close_connection(c);
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344 return;
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345 }
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346
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58
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347 rev->handler = ngx_http_ssl_handshake;
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0
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348 }
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349
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62
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350 r->main_filter_need_in_memory = 1;
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0
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351 }
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352
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353 #endif
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354
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355 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
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356 c->log->file = clcf->err_log->file;
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357 if (!(c->log->log_level & NGX_LOG_DEBUG_CONNECTION)) {
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358 c->log->log_level = clcf->err_log->log_level;
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359 }
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360
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361 if (c->buffer == NULL) {
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362 c->buffer = ngx_create_temp_buf(c->pool,
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363 cscf->client_header_buffer_size);
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364 if (c->buffer == NULL) {
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365 ngx_http_close_connection(c);
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366 return;
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367 }
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368 }
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369
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370 if (r->header_in == NULL) {
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371 r->header_in = c->buffer;
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372 }
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373
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50
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374 r->pool = ngx_create_pool(cscf->request_pool_size, c->log);
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375 if (r->pool == NULL) {
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0
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376 ngx_http_close_connection(c);
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377 return;
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378 }
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379
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380
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381 if (ngx_list_init(&r->headers_out.headers, r->pool, 20,
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130
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382 sizeof(ngx_table_elt_t))
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383 == NGX_ERROR)
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0
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384 {
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385 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
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386 return;
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387 }
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388
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389 r->ctx = ngx_pcalloc(r->pool, sizeof(void *) * ngx_http_max_module);
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390 if (r->ctx == NULL) {
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391 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
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392 return;
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393 }
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394
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122
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395 cmcf = ngx_http_get_module_main_conf(r, ngx_http_core_module);
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396
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397 r->variables = ngx_pcalloc(r->pool, cmcf->variables.nelts
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398 * sizeof(ngx_http_variable_value_t));
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399 if (r->variables == NULL) {
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400 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
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401 return;
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402 }
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403
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0
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404 c->single_connection = 1;
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132
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405 c->destroyed = 0;
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406
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0
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407 r->connection = c;
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408
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102
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409 r->main = r;
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410
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46
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411 r->start_time = ngx_time();
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412
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180
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413 r->method = NGX_HTTP_UNKNOWN;
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414
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0
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415 r->headers_in.content_length_n = -1;
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416 r->headers_in.keep_alive_n = -1;
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417 r->headers_out.content_length_n = -1;
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418 r->headers_out.last_modified_time = -1;
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419
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420 r->http_state = NGX_HTTP_READING_REQUEST_STATE;
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421
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54
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422 ctx = c->log->data;
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423 ctx->request = r;
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58
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424 r->log_handler = ngx_http_log_error_handler;
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54
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425
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0
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426 #if (NGX_STAT_STUB)
|
110
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427 ngx_atomic_fetch_add(ngx_stat_reading, 1);
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26
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428 r->stat_reading = 1;
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110
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429 ngx_atomic_fetch_add(ngx_stat_requests, 1);
|
0
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430 #endif
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431
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58
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432 rev->handler(rev);
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0
|
433 }
|
|
434
|
|
435
|
|
436 #if (NGX_HTTP_SSL)
|
|
437
|
50
|
438 static void
|
|
439 ngx_http_ssl_handshake(ngx_event_t *rev)
|
0
|
440 {
|
10
|
441 u_char buf[1];
|
|
442 ssize_t n;
|
0
|
443 ngx_int_t rc;
|
|
444 ngx_connection_t *c;
|
|
445 ngx_http_request_t *r;
|
|
446
|
|
447 c = rev->data;
|
|
448 r = c->data;
|
|
449
|
|
450 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, rev->log, 0,
|
|
451 "http check ssl handshake");
|
|
452
|
|
453 if (rev->timedout) {
|
54
|
454 ngx_log_error(NGX_LOG_INFO, c->log, NGX_ETIMEDOUT, "client timed out");
|
|
455 c->timedout = 1;
|
|
456 ngx_http_close_request(r, NGX_HTTP_REQUEST_TIME_OUT);
|
0
|
457 return;
|
|
458 }
|
|
459
|
132
|
460 n = recv(c->fd, (char *) buf, 1, MSG_PEEK);
|
0
|
461
|
|
462 if (n == -1 && ngx_socket_errno == NGX_EAGAIN) {
|
|
463 return;
|
|
464 }
|
|
465
|
|
466 if (n == 1) {
|
|
467 if (buf[0] == 0x80 /* SSLv2 */ || buf[0] == 0x16 /* SSLv3/TLSv1 */) {
|
|
468 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, rev->log, 0,
|
10
|
469 "https ssl handshake: 0x%02Xd", buf[0]);
|
0
|
470
|
|
471 rc = ngx_ssl_handshake(c);
|
|
472
|
96
|
473 if (rc == NGX_AGAIN) {
|
|
474 c->ssl->handler = ngx_http_ssl_handshake_handler;
|
0
|
475 return;
|
|
476 }
|
|
477
|
96
|
478 ngx_http_ssl_handshake_handler(c);
|
|
479
|
|
480 return;
|
0
|
481
|
|
482 } else {
|
|
483 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, rev->log, 0,
|
|
484 "plain http");
|
|
485
|
|
486 r->plain_http = 1;
|
|
487 }
|
|
488 }
|
|
489
|
58
|
490 rev->handler = ngx_http_process_request_line;
|
0
|
491 ngx_http_process_request_line(rev);
|
|
492 }
|
|
493
|
96
|
494
|
|
495 static void
|
|
496 ngx_http_ssl_handshake_handler(ngx_connection_t *c)
|
|
497 {
|
|
498 ngx_http_request_t *r;
|
|
499
|
|
500 if (c->ssl->handshaked) {
|
|
501
|
|
502 /*
|
|
503 * The majority of browsers do not send the "close notify" alert.
|
|
504 * Among them are MSIE, old Mozilla, Netscape 4, Konqueror,
|
|
505 * and Links. And what is more, MSIE ignores the server's alert.
|
|
506 *
|
|
507 * Opera and recent Mozilla send the alert.
|
|
508 */
|
|
509
|
|
510 c->ssl->no_wait_shutdown = 1;
|
|
511
|
|
512 c->read->handler = ngx_http_process_request_line;
|
|
513 /* STUB: epoll edge */ c->write->handler = ngx_http_empty_handler;
|
|
514
|
|
515 ngx_http_process_request_line(c->read);
|
|
516
|
|
517 return;
|
|
518 }
|
|
519
|
|
520 r = c->data;
|
|
521
|
|
522 ngx_http_close_request(r, NGX_HTTP_BAD_REQUEST);
|
|
523
|
|
524 return;
|
|
525 }
|
|
526
|
|
527
|
0
|
528 #endif
|
|
529
|
|
530
|
50
|
531 static void
|
|
532 ngx_http_process_request_line(ngx_event_t *rev)
|
0
|
533 {
|
|
534 ssize_t n;
|
|
535 ngx_int_t rc, rv;
|
|
536 ngx_connection_t *c;
|
|
537 ngx_http_request_t *r;
|
|
538 ngx_http_log_ctx_t *ctx;
|
|
539
|
|
540 c = rev->data;
|
|
541 r = c->data;
|
|
542
|
|
543 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, rev->log, 0,
|
|
544 "http process request line");
|
|
545
|
|
546 if (rev->timedout) {
|
54
|
547 ngx_log_error(NGX_LOG_INFO, c->log, NGX_ETIMEDOUT, "client timed out");
|
|
548 c->timedout = 1;
|
|
549 ngx_http_close_request(r, NGX_HTTP_REQUEST_TIME_OUT);
|
0
|
550 return;
|
|
551 }
|
|
552
|
|
553 rc = NGX_AGAIN;
|
|
554
|
|
555 for ( ;; ) {
|
|
556
|
|
557 if (rc == NGX_AGAIN) {
|
|
558 n = ngx_http_read_request_header(r);
|
|
559
|
|
560 if (n == NGX_AGAIN || n == NGX_ERROR) {
|
|
561 return;
|
|
562 }
|
|
563 }
|
|
564
|
|
565 rc = ngx_http_parse_request_line(r, r->header_in);
|
|
566
|
|
567 if (rc == NGX_OK) {
|
|
568
|
|
569 /* the request line has been parsed successfully */
|
|
570
|
10
|
571 r->request_line.len = r->request_end - r->request_start;
|
|
572 r->request_line.data = r->request_start;
|
|
573
|
0
|
574
|
|
575 if (r->args_start) {
|
|
576 r->uri.len = r->args_start - 1 - r->uri_start;
|
|
577 } else {
|
|
578 r->uri.len = r->uri_end - r->uri_start;
|
|
579 }
|
|
580
|
18
|
581
|
2
|
582 if (r->complex_uri || r->quoted_uri) {
|
10
|
583
|
50
|
584 r->uri.data = ngx_palloc(r->pool, r->uri.len + 1);
|
|
585 if (r->uri.data == NULL) {
|
10
|
586 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
587 return;
|
|
588 }
|
|
589
|
0
|
590 rc = ngx_http_parse_complex_uri(r);
|
|
591
|
54
|
592 if (rc == NGX_HTTP_PARSE_INVALID_REQUEST) {
|
|
593 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
594 "client sent invalid request");
|
|
595 ngx_http_finalize_request(r, NGX_HTTP_BAD_REQUEST);
|
0
|
596 return;
|
|
597 }
|
|
598
|
|
599 } else {
|
10
|
600 r->uri.data = r->uri_start;
|
0
|
601 }
|
|
602
|
18
|
603
|
10
|
604 r->unparsed_uri.len = r->uri_end - r->uri_start;
|
|
605 r->unparsed_uri.data = r->uri_start;
|
|
606
|
0
|
607
|
58
|
608 r->method_name.len = r->method_end - r->request_start + 1;
|
|
609 r->method_name.data = r->request_line.data;
|
0
|
610
|
10
|
611
|
28
|
612 if (r->http_protocol.data) {
|
|
613 r->http_protocol.len = r->request_end - r->http_protocol.data;
|
|
614 }
|
|
615
|
|
616
|
0
|
617 if (r->uri_ext) {
|
|
618 if (r->args_start) {
|
|
619 r->exten.len = r->args_start - 1 - r->uri_ext;
|
|
620 } else {
|
|
621 r->exten.len = r->uri_end - r->uri_ext;
|
|
622 }
|
|
623
|
10
|
624 r->exten.data = r->uri_ext;
|
0
|
625 }
|
|
626
|
10
|
627
|
0
|
628 if (r->args_start && r->uri_end > r->args_start) {
|
|
629 r->args.len = r->uri_end - r->args_start;
|
10
|
630 r->args.data = r->args_start;
|
0
|
631 }
|
|
632
|
10
|
633
|
|
634 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
635 "http request line: \"%V\"", &r->request_line);
|
|
636
|
0
|
637 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
10
|
638 "http uri: \"%V\"", &r->uri);
|
0
|
639
|
|
640 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
10
|
641 "http args: \"%V\"", &r->args);
|
0
|
642
|
|
643 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
10
|
644 "http exten: \"%V\"", &r->exten);
|
|
645
|
0
|
646 if (r->http_version < NGX_HTTP_VERSION_10) {
|
86
|
647
|
|
648 if (rev->timer_set) {
|
|
649 ngx_del_timer(rev);
|
|
650 }
|
|
651
|
|
652 #if (NGX_STAT_STUB)
|
110
|
653 ngx_atomic_fetch_add(ngx_stat_reading, -1);
|
86
|
654 r->stat_reading = 0;
|
110
|
655 ngx_atomic_fetch_add(ngx_stat_writing, 1);
|
86
|
656 r->stat_writing = 1;
|
|
657 #endif
|
|
658
|
|
659 rev->handler = ngx_http_request_handler;
|
|
660 c->write->handler = ngx_http_request_handler;
|
58
|
661 r->read_event_handler = ngx_http_block_read;
|
86
|
662
|
0
|
663 ngx_http_handler(r);
|
86
|
664
|
0
|
665 return;
|
|
666 }
|
|
667
|
|
668
|
|
669 if (ngx_list_init(&r->headers_in.headers, r->pool, 20,
|
130
|
670 sizeof(ngx_table_elt_t))
|
|
671 == NGX_ERROR)
|
0
|
672 {
|
|
673 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
674 return;
|
|
675 }
|
|
676
|
|
677
|
48
|
678 if (ngx_array_init(&r->headers_in.cookies, r->pool, 2,
|
130
|
679 sizeof(ngx_table_elt_t *))
|
|
680 == NGX_ERROR)
|
0
|
681 {
|
|
682 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
683 return;
|
|
684 }
|
|
685
|
32
|
686 c->log->action = "reading client request headers";
|
0
|
687
|
58
|
688 rev->handler = ngx_http_process_request_headers;
|
0
|
689 ngx_http_process_request_headers(rev);
|
|
690
|
|
691 return;
|
54
|
692 }
|
|
693
|
|
694 if (rc != NGX_AGAIN) {
|
0
|
695
|
|
696 /* there was error while a request line parsing */
|
|
697
|
54
|
698 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
699 ngx_http_client_errors[rc - NGX_HTTP_CLIENT_ERROR]);
|
|
700 ngx_http_finalize_request(r, NGX_HTTP_BAD_REQUEST);
|
0
|
701 return;
|
|
702 }
|
|
703
|
|
704 /* NGX_AGAIN: a request line parsing is still incomplete */
|
|
705
|
|
706 if (r->header_in->pos == r->header_in->end) {
|
|
707
|
|
708 rv = ngx_http_alloc_large_header_buffer(r, 1);
|
|
709
|
|
710 if (rv == NGX_ERROR) {
|
|
711 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
712 return;
|
|
713 }
|
|
714
|
|
715 if (rv == NGX_DECLINED) {
|
54
|
716 ctx = c->log->data;
|
|
717 ctx->request = r;
|
|
718
|
|
719 r->request_line.len = r->header_in->end - r->request_start;
|
|
720 r->request_line.data = r->request_start;
|
|
721
|
|
722 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
723 "client sent too long URI");
|
|
724 ngx_http_finalize_request(r, NGX_HTTP_REQUEST_URI_TOO_LARGE);
|
0
|
725 return;
|
|
726 }
|
|
727 }
|
|
728 }
|
|
729 }
|
|
730
|
|
731
|
50
|
732 static void
|
|
733 ngx_http_process_request_headers(ngx_event_t *rev)
|
0
|
734 {
|
56
|
735 ssize_t n;
|
|
736 ngx_int_t rc, rv;
|
|
737 ngx_uint_t key;
|
|
738 ngx_str_t header;
|
58
|
739 ngx_table_elt_t *h;
|
56
|
740 ngx_connection_t *c;
|
|
741 ngx_http_header_t *hh;
|
|
742 ngx_http_request_t *r;
|
60
|
743 ngx_http_core_srv_conf_t *cscf;
|
56
|
744 ngx_http_core_main_conf_t *cmcf;
|
0
|
745
|
|
746 c = rev->data;
|
|
747 r = c->data;
|
|
748
|
|
749 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, rev->log, 0,
|
|
750 "http process request header line");
|
|
751
|
|
752 if (rev->timedout) {
|
54
|
753 ngx_log_error(NGX_LOG_INFO, c->log, NGX_ETIMEDOUT, "client timed out");
|
|
754 c->timedout = 1;
|
|
755 ngx_http_close_request(r, NGX_HTTP_REQUEST_TIME_OUT);
|
0
|
756 return;
|
|
757 }
|
|
758
|
56
|
759 cmcf = ngx_http_get_module_main_conf(r, ngx_http_core_module);
|
60
|
760 cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
|
56
|
761 hh = (ngx_http_header_t *) cmcf->headers_in_hash.buckets;
|
|
762
|
0
|
763 rc = NGX_AGAIN;
|
|
764
|
|
765 for ( ;; ) {
|
|
766
|
|
767 if (rc == NGX_AGAIN) {
|
|
768
|
|
769 if (r->header_in->pos == r->header_in->end) {
|
|
770
|
|
771 rv = ngx_http_alloc_large_header_buffer(r, 0);
|
|
772
|
|
773 if (rv == NGX_ERROR) {
|
|
774 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
775 return;
|
|
776 }
|
|
777
|
|
778 if (rv == NGX_DECLINED) {
|
54
|
779 header.len = r->header_in->end - r->header_name_start;
|
|
780 header.data = r->header_name_start;
|
80
|
781
|
|
782 if (header.len > NGX_MAX_ERROR_STR - 300) {
|
|
783 header.len = NGX_MAX_ERROR_STR - 300;
|
|
784 header.data[header.len++] = '.';
|
|
785 header.data[header.len++] = '.';
|
|
786 header.data[header.len++] = '.';
|
|
787 }
|
|
788
|
54
|
789 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
790 "client sent too long header line: \"%V\"",
|
|
791 &header);
|
|
792 ngx_http_close_request(r, NGX_HTTP_BAD_REQUEST);
|
0
|
793 return;
|
|
794 }
|
|
795 }
|
|
796
|
|
797 n = ngx_http_read_request_header(r);
|
|
798
|
|
799 if (n == NGX_AGAIN || n == NGX_ERROR) {
|
|
800 return;
|
|
801 }
|
|
802 }
|
|
803
|
|
804 rc = ngx_http_parse_header_line(r, r->header_in);
|
|
805
|
|
806 if (rc == NGX_OK) {
|
|
807
|
60
|
808 if (r->invalid_header && cscf->ignore_invalid_headers) {
|
52
|
809
|
|
810 /* there was error while a header line parsing */
|
|
811
|
|
812 header.len = r->header_end - r->header_name_start;
|
|
813 header.data = r->header_name_start;
|
|
814
|
54
|
815 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
816 "client sent invalid header line: \"%V\"",
|
52
|
817 &header);
|
|
818 continue;
|
|
819 }
|
|
820
|
0
|
821 /* a header line has been parsed successfully */
|
|
822
|
50
|
823 h = ngx_list_push(&r->headers_in.headers);
|
|
824 if (h == NULL) {
|
0
|
825 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
826 return;
|
|
827 }
|
|
828
|
56
|
829 h->hash = r->header_hash;
|
|
830
|
0
|
831 h->key.len = r->header_name_end - r->header_name_start;
|
|
832 h->key.data = r->header_name_start;
|
|
833 h->key.data[h->key.len] = '\0';
|
|
834
|
|
835 h->value.len = r->header_end - r->header_start;
|
|
836 h->value.data = r->header_start;
|
|
837 h->value.data[h->value.len] = '\0';
|
|
838
|
58
|
839 key = h->hash % cmcf->headers_in_hash.hash_size;
|
|
840
|
|
841 if (hh[key].name.len == h->key.len
|
|
842 && ngx_strcasecmp(hh[key].name.data, h->key.data) == 0)
|
0
|
843 {
|
58
|
844 if (hh[key].handler(r, h, hh[key].offset) != NGX_OK) {
|
0
|
845 return;
|
|
846 }
|
|
847 }
|
|
848
|
|
849 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
10
|
850 "http header: \"%V: %V\"",
|
|
851 &h->key, &h->value);
|
0
|
852
|
|
853 continue;
|
54
|
854 }
|
|
855
|
|
856 if (rc == NGX_HTTP_PARSE_HEADER_DONE) {
|
0
|
857
|
|
858 /* a whole header has been parsed successfully */
|
|
859
|
|
860 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
861 "http header done");
|
|
862
|
24
|
863 r->request_length += r->header_in->pos - r->header_in->start;
|
|
864
|
0
|
865 r->http_state = NGX_HTTP_PROCESS_REQUEST_STATE;
|
|
866
|
|
867 rc = ngx_http_process_request_header(r);
|
|
868
|
|
869 if (rc != NGX_OK) {
|
|
870 return;
|
|
871 }
|
|
872
|
|
873 if (rev->timer_set) {
|
|
874 ngx_del_timer(rev);
|
|
875 }
|
|
876
|
|
877 #if (NGX_STAT_STUB)
|
110
|
878 ngx_atomic_fetch_add(ngx_stat_reading, -1);
|
0
|
879 r->stat_reading = 0;
|
110
|
880 ngx_atomic_fetch_add(ngx_stat_writing, 1);
|
0
|
881 r->stat_writing = 1;
|
|
882 #endif
|
|
883
|
58
|
884 rev->handler = ngx_http_request_handler;
|
|
885 c->write->handler = ngx_http_request_handler;
|
|
886 r->read_event_handler = ngx_http_block_read;
|
|
887
|
0
|
888 ngx_http_handler(r);
|
86
|
889
|
0
|
890 return;
|
54
|
891 }
|
|
892
|
|
893 if (rc == NGX_AGAIN) {
|
|
894
|
|
895 /* a header line parsing is still not complete */
|
|
896
|
|
897 continue;
|
0
|
898 }
|
|
899
|
54
|
900 /* rc == NGX_HTTP_PARSE_INVALID_HEADER: "\r" is not followed by "\n" */
|
|
901
|
|
902 header.len = r->header_end - r->header_name_start;
|
|
903 header.data = r->header_name_start;
|
|
904 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
905 "client sent invalid header line: \"%V\\r...\"",
|
|
906 &header);
|
|
907 ngx_http_close_request(r, NGX_HTTP_BAD_REQUEST);
|
|
908 return;
|
0
|
909 }
|
|
910 }
|
|
911
|
|
912
|
50
|
913 static ssize_t
|
|
914 ngx_http_read_request_header(ngx_http_request_t *r)
|
0
|
915 {
|
|
916 ssize_t n;
|
|
917 ngx_event_t *rev;
|
|
918 ngx_http_core_srv_conf_t *cscf;
|
|
919
|
|
920 rev = r->connection->read;
|
|
921
|
|
922 n = r->header_in->last - r->header_in->pos;
|
|
923
|
|
924 if (n > 0) {
|
|
925 return n;
|
|
926 }
|
|
927
|
72
|
928 if (rev->ready) {
|
|
929 n = r->connection->recv(r->connection, r->header_in->last,
|
|
930 r->header_in->end - r->header_in->last);
|
|
931 } else {
|
|
932 n = NGX_AGAIN;
|
0
|
933 }
|
|
934
|
|
935 if (n == NGX_AGAIN) {
|
|
936 if (!r->header_timeout_set) {
|
|
937 cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
|
|
938 ngx_add_timer(rev, cscf->client_header_timeout);
|
|
939 r->header_timeout_set = 1;
|
|
940 }
|
|
941
|
|
942 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) {
|
|
943 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
944 return NGX_ERROR;
|
|
945 }
|
|
946
|
|
947 return NGX_AGAIN;
|
|
948 }
|
|
949
|
|
950 if (n == 0) {
|
|
951 ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
|
|
952 "client closed prematurely connection");
|
|
953 }
|
|
954
|
|
955 if (n == 0 || n == NGX_ERROR) {
|
|
956 ngx_http_close_request(r, NGX_HTTP_BAD_REQUEST);
|
|
957 return NGX_ERROR;
|
|
958 }
|
|
959
|
|
960 r->header_in->last += n;
|
|
961
|
|
962 return n;
|
|
963 }
|
|
964
|
|
965
|
50
|
966 static ngx_int_t
|
|
967 ngx_http_alloc_large_header_buffer(ngx_http_request_t *r,
|
|
968 ngx_uint_t request_line)
|
0
|
969 {
|
|
970 u_char *old, *new;
|
|
971 ngx_buf_t *b;
|
|
972 ngx_http_connection_t *hc;
|
|
973 ngx_http_core_srv_conf_t *cscf;
|
|
974
|
|
975 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
976 "http alloc large header buffer");
|
|
977
|
|
978 if (request_line && r->state == 0) {
|
|
979
|
|
980 /* the client fills up the buffer with "\r\n" */
|
|
981
|
24
|
982 r->request_length += r->header_in->end - r->header_in->start;
|
|
983
|
0
|
984 r->header_in->pos = r->header_in->start;
|
|
985 r->header_in->last = r->header_in->start;
|
|
986
|
|
987 return NGX_OK;
|
|
988 }
|
|
989
|
|
990 old = request_line ? r->request_start : r->header_name_start;
|
|
991
|
|
992 cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
|
|
993
|
|
994 if (r->state != 0
|
|
995 && (size_t) (r->header_in->pos - old)
|
|
996 >= cscf->large_client_header_buffers.size)
|
|
997 {
|
|
998 return NGX_DECLINED;
|
|
999 }
|
|
1000
|
|
1001 hc = r->http_connection;
|
|
1002
|
|
1003 if (hc->nfree) {
|
|
1004 b = hc->free[--hc->nfree];
|
|
1005
|
|
1006 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
10
|
1007 "http large header free: %p %uz",
|
0
|
1008 b->pos, b->end - b->last);
|
|
1009
|
|
1010 } else if (hc->nbusy < cscf->large_client_header_buffers.num) {
|
|
1011
|
|
1012 if (hc->busy == NULL) {
|
|
1013 hc->busy = ngx_palloc(r->connection->pool,
|
|
1014 cscf->large_client_header_buffers.num * sizeof(ngx_buf_t *));
|
|
1015 if (hc->busy == NULL) {
|
|
1016 return NGX_ERROR;
|
|
1017 }
|
|
1018 }
|
|
1019
|
|
1020 b = ngx_create_temp_buf(r->connection->pool,
|
|
1021 cscf->large_client_header_buffers.size);
|
|
1022 if (b == NULL) {
|
|
1023 return NGX_ERROR;
|
|
1024 }
|
|
1025
|
|
1026 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
10
|
1027 "http large header alloc: %p %uz",
|
0
|
1028 b->pos, b->end - b->last);
|
|
1029
|
|
1030 } else {
|
|
1031 return NGX_DECLINED;
|
|
1032 }
|
|
1033
|
|
1034 hc->busy[hc->nbusy++] = b;
|
|
1035
|
|
1036 if (r->state == 0) {
|
|
1037 /*
|
|
1038 * r->state == 0 means that a header line was parsed successfully
|
|
1039 * and we do not need to copy incomplete header line and
|
|
1040 * to relocate the parser header pointers
|
|
1041 */
|
|
1042
|
24
|
1043 r->request_length += r->header_in->end - r->header_in->start;
|
|
1044
|
0
|
1045 r->header_in = b;
|
|
1046
|
|
1047 return NGX_OK;
|
|
1048 }
|
|
1049
|
|
1050 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
1051 "http large header copy: %d", r->header_in->pos - old);
|
|
1052
|
24
|
1053 r->request_length += old - r->header_in->start;
|
|
1054
|
0
|
1055 new = b->start;
|
|
1056
|
|
1057 ngx_memcpy(new, old, r->header_in->pos - old);
|
|
1058
|
|
1059 b->pos = new + (r->header_in->pos - old);
|
|
1060 b->last = new + (r->header_in->pos - old);
|
|
1061
|
|
1062 if (request_line) {
|
|
1063 r->request_start = new;
|
|
1064
|
|
1065 if (r->request_end) {
|
|
1066 r->request_end = new + (r->request_end - old);
|
|
1067 }
|
|
1068
|
|
1069 r->method_end = new + (r->method_end - old);
|
|
1070
|
|
1071 r->uri_start = new + (r->uri_start - old);
|
|
1072 r->uri_end = new + (r->uri_end - old);
|
|
1073
|
|
1074 if (r->schema_start) {
|
|
1075 r->schema_start = new + (r->schema_start - old);
|
|
1076 r->schema_end = new + (r->schema_end - old);
|
|
1077 }
|
|
1078
|
|
1079 if (r->host_start) {
|
|
1080 r->host_start = new + (r->host_start - old);
|
|
1081 r->host_end = new + (r->host_end - old);
|
|
1082 }
|
|
1083
|
|
1084 if (r->port_start) {
|
|
1085 r->port_start = new + (r->port_start - old);
|
|
1086 r->port_end = new + (r->port_end - old);
|
|
1087 }
|
|
1088
|
|
1089 if (r->uri_ext) {
|
|
1090 r->uri_ext = new + (r->uri_ext - old);
|
|
1091 }
|
|
1092
|
|
1093 if (r->args_start) {
|
|
1094 r->args_start = new + (r->args_start - old);
|
|
1095 }
|
|
1096
|
|
1097 } else {
|
|
1098 r->header_name_start = new;
|
|
1099 r->header_name_end = new + (r->header_name_end - old);
|
|
1100 r->header_start = new + (r->header_start - old);
|
|
1101 r->header_end = new + (r->header_end - old);
|
|
1102 }
|
|
1103
|
|
1104 r->header_in = b;
|
|
1105
|
|
1106 return NGX_OK;
|
|
1107 }
|
|
1108
|
|
1109
|
50
|
1110 static ngx_int_t
|
58
|
1111 ngx_http_process_header_line(ngx_http_request_t *r, ngx_table_elt_t *h,
|
|
1112 ngx_uint_t offset)
|
|
1113 {
|
|
1114 ngx_table_elt_t **ph;
|
|
1115
|
|
1116 ph = (ngx_table_elt_t **) ((char *) &r->headers_in + offset);
|
|
1117
|
|
1118 if (*ph == NULL) {
|
|
1119 *ph = h;
|
|
1120 }
|
|
1121
|
|
1122 return NGX_OK;
|
|
1123 }
|
|
1124
|
|
1125
|
|
1126 static ngx_int_t
|
72
|
1127 ngx_http_process_unique_header_line(ngx_http_request_t *r, ngx_table_elt_t *h,
|
|
1128 ngx_uint_t offset)
|
|
1129 {
|
|
1130 ngx_table_elt_t **ph;
|
|
1131
|
|
1132 ph = (ngx_table_elt_t **) ((char *) &r->headers_in + offset);
|
|
1133
|
|
1134 if (*ph == NULL) {
|
|
1135 *ph = h;
|
|
1136 return NGX_OK;
|
|
1137 }
|
|
1138
|
|
1139 ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
|
|
1140 "client sent duplicate header line: \"%V: %V\"",
|
|
1141 &h->key, &h->value);
|
|
1142
|
|
1143 ngx_http_finalize_request(r, NGX_HTTP_BAD_REQUEST);
|
|
1144
|
|
1145 return NGX_ERROR;
|
|
1146 }
|
|
1147
|
|
1148
|
|
1149 static ngx_int_t
|
58
|
1150 ngx_http_process_cookie(ngx_http_request_t *r, ngx_table_elt_t *h,
|
|
1151 ngx_uint_t offset)
|
|
1152 {
|
|
1153 ngx_table_elt_t **cookie;
|
|
1154
|
|
1155 cookie = ngx_array_push(&r->headers_in.cookies);
|
72
|
1156 if (cookie) {
|
|
1157 *cookie = h;
|
|
1158 return NGX_OK;
|
58
|
1159 }
|
|
1160
|
72
|
1161 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
1162
|
|
1163 return NGX_ERROR;
|
58
|
1164 }
|
|
1165
|
|
1166
|
|
1167 static ngx_int_t
|
50
|
1168 ngx_http_process_request_header(ngx_http_request_t *r)
|
0
|
1169 {
|
162
|
1170 size_t len;
|
|
1171 u_char *ua, *user_agent, ch;
|
0
|
1172
|
|
1173 if (r->headers_in.host) {
|
|
1174 for (len = 0; len < r->headers_in.host->value.len; len++) {
|
26
|
1175 ch = r->headers_in.host->value.data[len];
|
|
1176
|
|
1177 if (ch == ':') {
|
0
|
1178 break;
|
|
1179 }
|
26
|
1180
|
|
1181 r->headers_in.host->value.data[len] = ngx_tolower(ch);
|
0
|
1182 }
|
54
|
1183
|
58
|
1184 if (r->headers_in.host->value.data[len - 1] == '.') {
|
|
1185 len--;
|
|
1186 }
|
|
1187
|
0
|
1188 r->headers_in.host_name_len = len;
|
|
1189
|
162
|
1190 ngx_http_find_virtual_server(r);
|
0
|
1191
|
|
1192 } else {
|
|
1193 if (r->http_version > NGX_HTTP_VERSION_10) {
|
54
|
1194 ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
|
|
1195 "client sent HTTP/1.1 request without \"Host\" header");
|
|
1196 ngx_http_finalize_request(r, NGX_HTTP_BAD_REQUEST);
|
|
1197 return NGX_ERROR;
|
0
|
1198 }
|
54
|
1199
|
0
|
1200 r->headers_in.host_name_len = 0;
|
|
1201 }
|
|
1202
|
|
1203 if (r->headers_in.content_length) {
|
|
1204 r->headers_in.content_length_n =
|
50
|
1205 ngx_atosz(r->headers_in.content_length->value.data,
|
0
|
1206 r->headers_in.content_length->value.len);
|
|
1207
|
|
1208 if (r->headers_in.content_length_n == NGX_ERROR) {
|
54
|
1209 ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
|
|
1210 "client sent invalid \"Content-Length\" header");
|
130
|
1211 ngx_http_finalize_request(r, NGX_HTTP_LENGTH_REQUIRED);
|
54
|
1212 return NGX_ERROR;
|
0
|
1213 }
|
|
1214 }
|
|
1215
|
32
|
1216 if (r->method == NGX_HTTP_POST && r->headers_in.content_length_n == -1) {
|
54
|
1217 ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
|
|
1218 "client sent POST method without \"Content-Length\" header");
|
130
|
1219 ngx_http_finalize_request(r, NGX_HTTP_LENGTH_REQUIRED);
|
|
1220 return NGX_ERROR;
|
|
1221 }
|
|
1222
|
|
1223 if (r->headers_in.transfer_encoding
|
|
1224 && ngx_strstr(r->headers_in.transfer_encoding->value.data, "chunked"))
|
|
1225 {
|
|
1226 ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
|
|
1227 "client sent \"Transfer-Encoding: chunked\" header");
|
|
1228 ngx_http_finalize_request(r, NGX_HTTP_LENGTH_REQUIRED);
|
54
|
1229 return NGX_ERROR;
|
0
|
1230 }
|
|
1231
|
|
1232 if (r->plain_http) {
|
54
|
1233 ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
|
|
1234 "client sent plain HTTP request to HTTPS port");
|
|
1235 ngx_http_finalize_request(r, NGX_HTTP_TO_HTTPS);
|
|
1236 return NGX_ERROR;
|
0
|
1237 }
|
|
1238
|
|
1239 if (r->headers_in.connection) {
|
|
1240 if (r->headers_in.connection->value.len == 5
|
|
1241 && ngx_strcasecmp(r->headers_in.connection->value.data, "close")
|
58
|
1242 == 0)
|
0
|
1243 {
|
|
1244 r->headers_in.connection_type = NGX_HTTP_CONNECTION_CLOSE;
|
|
1245
|
|
1246 } else if (r->headers_in.connection->value.len == 10
|
|
1247 && ngx_strcasecmp(r->headers_in.connection->value.data,
|
58
|
1248 "keep-alive") == 0)
|
0
|
1249 {
|
|
1250 r->headers_in.connection_type = NGX_HTTP_CONNECTION_KEEP_ALIVE;
|
|
1251
|
|
1252 if (r->headers_in.keep_alive) {
|
|
1253 r->headers_in.keep_alive_n =
|
50
|
1254 ngx_atotm(r->headers_in.keep_alive->value.data,
|
0
|
1255 r->headers_in.keep_alive->value.len);
|
|
1256 }
|
|
1257 }
|
|
1258 }
|
|
1259
|
|
1260 if (r->headers_in.user_agent) {
|
|
1261
|
|
1262 /*
|
|
1263 * check some widespread browsers while the headers are still
|
|
1264 * in CPU cache
|
|
1265 */
|
|
1266
|
|
1267 user_agent = r->headers_in.user_agent->value.data;
|
|
1268
|
|
1269 ua = (u_char *) ngx_strstr(user_agent, "MSIE");
|
|
1270
|
|
1271 if (ua && ua + 8 < user_agent + r->headers_in.user_agent->value.len) {
|
|
1272
|
|
1273 r->headers_in.msie = 1;
|
|
1274
|
|
1275 if (ua[4] == ' ' && ua[5] == '4' && ua[6] == '.') {
|
|
1276 r->headers_in.msie4 = 1;
|
|
1277 }
|
|
1278
|
|
1279 #if 0
|
|
1280 /* MSIE ignores the SSL "close notify" alert */
|
22
|
1281 if (c->ssl) {
|
96
|
1282 c->ssl->no_send_shutdown = 1;
|
22
|
1283 }
|
0
|
1284 #endif
|
|
1285 }
|
|
1286
|
|
1287 if (ngx_strstr(user_agent, "Opera")) {
|
|
1288 r->headers_in.opera = 1;
|
|
1289 r->headers_in.msie = 0;
|
|
1290 r->headers_in.msie4 = 0;
|
|
1291 }
|
|
1292
|
|
1293 if (!r->headers_in.msie && !r->headers_in.opera) {
|
|
1294
|
|
1295 if (ngx_strstr(user_agent, "Gecko/")) {
|
|
1296 r->headers_in.gecko = 1;
|
|
1297
|
|
1298 } else if (ngx_strstr(user_agent, "Konqueror")) {
|
|
1299 r->headers_in.konqueror = 1;
|
|
1300 }
|
|
1301 }
|
|
1302 }
|
|
1303
|
|
1304 return NGX_OK;
|
|
1305 }
|
|
1306
|
|
1307
|
162
|
1308 static void
|
50
|
1309 ngx_http_find_virtual_server(ngx_http_request_t *r)
|
26
|
1310 {
|
142
|
1311 size_t len;
|
|
1312 u_char *host;
|
|
1313 ngx_http_virtual_names_t *vn;
|
|
1314 ngx_http_core_loc_conf_t *clcf;
|
|
1315 ngx_http_core_srv_conf_t *cscf;
|
|
1316
|
|
1317 vn = r->virtual_names;
|
|
1318
|
|
1319 if (vn == NULL) {
|
162
|
1320 return;
|
26
|
1321 }
|
|
1322
|
142
|
1323 host = r->headers_in.host->value.data;
|
|
1324 len = r->headers_in.host_name_len;
|
|
1325
|
|
1326 /* STUB: ngx_hash_key() here is STUB */
|
|
1327
|
|
1328 if (vn->hash.buckets) {
|
|
1329 cscf = ngx_hash_find(&vn->hash, ngx_hash_key(host, len), host, len);
|
|
1330 if (cscf) {
|
58
|
1331 goto found;
|
26
|
1332 }
|
|
1333 }
|
|
1334
|
142
|
1335 if (vn->dns_wildcards && vn->dns_wildcards->hash.buckets) {
|
|
1336 cscf = ngx_hash_find_wildcard(vn->dns_wildcards, host, len);
|
|
1337
|
|
1338 if (cscf) {
|
|
1339 goto found;
|
26
|
1340 }
|
|
1341 }
|
|
1342
|
162
|
1343 return;
|
58
|
1344
|
|
1345 found:
|
|
1346
|
142
|
1347 r->server_name.len = len;
|
|
1348 r->server_name.data = host;
|
|
1349
|
|
1350 r->srv_conf = cscf->ctx->srv_conf;
|
|
1351 r->loc_conf = cscf->ctx->loc_conf;
|
58
|
1352
|
|
1353 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
1354 r->connection->log->file = clcf->err_log->file;
|
|
1355
|
|
1356 if (!(r->connection->log->log_level & NGX_LOG_DEBUG_CONNECTION)) {
|
|
1357 r->connection->log->log_level = clcf->err_log->log_level;
|
26
|
1358 }
|
|
1359
|
162
|
1360 return;
|
26
|
1361 }
|
|
1362
|
|
1363
|
58
|
1364 static void
|
|
1365 ngx_http_request_handler(ngx_event_t *ev)
|
|
1366 {
|
|
1367 ngx_connection_t *c;
|
|
1368 ngx_http_request_t *r;
|
|
1369
|
|
1370 c = ev->data;
|
|
1371 r = c->data;
|
|
1372
|
|
1373 if (ev->write) {
|
|
1374 r->write_event_handler(r);
|
|
1375
|
|
1376 } else {
|
|
1377 r->read_event_handler(r);
|
|
1378 }
|
|
1379 }
|
|
1380
|
|
1381
|
50
|
1382 void
|
58
|
1383 ngx_http_finalize_request(ngx_http_request_t *r, ngx_int_t rc)
|
0
|
1384 {
|
58
|
1385 ngx_http_request_t *pr;
|
0
|
1386 ngx_http_core_loc_conf_t *clcf;
|
|
1387
|
58
|
1388 if (rc == NGX_DONE) {
|
118
|
1389 /* the request pool may be already destroyed */
|
58
|
1390 return;
|
|
1391 }
|
|
1392
|
132
|
1393 ngx_log_debug3(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
1394 "http finalize request: %d, \"%V?%V\"",
|
|
1395 rc, &r->uri, &r->args);
|
|
1396
|
162
|
1397 if (rc == NGX_ERROR
|
|
1398 || rc == NGX_HTTP_REQUEST_TIME_OUT
|
|
1399 || r->connection->error)
|
|
1400 {
|
|
1401 if (ngx_http_post_action(r) == NGX_OK) {
|
|
1402 return;
|
|
1403 }
|
|
1404
|
118
|
1405 ngx_http_close_request(r, 0);
|
0
|
1406 return;
|
|
1407 }
|
|
1408
|
118
|
1409 if (rc >= NGX_HTTP_SPECIAL_RESPONSE || rc == NGX_HTTP_NO_CONTENT) {
|
|
1410
|
136
|
1411 if (rc == NGX_HTTP_CLOSE) {
|
|
1412 ngx_http_close_request(r, rc);
|
|
1413 return;
|
|
1414 }
|
|
1415
|
146
|
1416 if (r == r->main) {
|
118
|
1417 if (r->connection->read->timer_set) {
|
|
1418 ngx_del_timer(r->connection->read);
|
|
1419 }
|
|
1420
|
|
1421 if (r->connection->write->timer_set) {
|
|
1422 ngx_del_timer(r->connection->write);
|
|
1423 }
|
|
1424 }
|
|
1425
|
|
1426 ngx_http_finalize_request(r, ngx_http_special_response_handler(r, rc));
|
|
1427
|
|
1428 return;
|
|
1429 }
|
|
1430
|
146
|
1431 if (r != r->main || rc == NGX_AGAIN) {
|
74
|
1432 if (ngx_http_set_write_handler(r) != NGX_OK) {
|
|
1433 return;
|
|
1434 }
|
58
|
1435 }
|
|
1436
|
|
1437 r->done = 1;
|
|
1438
|
|
1439 if (r != r->connection->data) {
|
132
|
1440 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
1441 "http finalize non-active request: \"%V?%V\"",
|
|
1442 &r->uri, &r->args);
|
58
|
1443 return;
|
|
1444 }
|
|
1445
|
146
|
1446 if (r != r->main) {
|
58
|
1447
|
|
1448 pr = r->parent;
|
|
1449
|
132
|
1450 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
1451 "http parent request: \"%V?%V\"", &pr->uri, &pr->args);
|
76
|
1452
|
58
|
1453 if (rc != NGX_AGAIN) {
|
146
|
1454 r->connection->data = pr;
|
58
|
1455 }
|
|
1456
|
|
1457 if (pr->postponed) {
|
|
1458
|
132
|
1459 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
1460 "http request: \"%V?%V\" has postponed",
|
|
1461 &pr->uri, &pr->args);
|
76
|
1462
|
58
|
1463 if (rc != NGX_AGAIN && pr->postponed->request == r) {
|
|
1464 pr->postponed = pr->postponed->next;
|
146
|
1465 }
|
|
1466
|
|
1467 if (r->fast_subrequest) {
|
|
1468 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
1469 "http fast subrequest: \"%V?%V\" done",
|
|
1470 &r->uri, &r->args);
|
|
1471 return;
|
58
|
1472 }
|
|
1473
|
132
|
1474 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
146
|
1475 "http wake parent request: \"%V?%V\"",
|
|
1476 &pr->uri, &pr->args);
|
|
1477
|
|
1478 pr->write_event_handler(pr);
|
|
1479
|
|
1480 #if 0
|
|
1481 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
132
|
1482 "http request: \"%V?%V\" still has postponed",
|
|
1483 &pr->uri, &pr->args);
|
|
1484
|
|
1485 if (pr->done || pr->postponed->out) {
|
|
1486 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
1487 "http wake parent request: \"%V?%V\"",
|
|
1488 &pr->uri, &pr->args);
|
58
|
1489
|
|
1490 pr->write_event_handler(pr);
|
|
1491 }
|
146
|
1492 #endif
|
|
1493
|
58
|
1494 }
|
|
1495
|
|
1496 return;
|
|
1497 }
|
0
|
1498
|
118
|
1499 if (rc == NGX_AGAIN) {
|
0
|
1500 return;
|
76
|
1501 }
|
|
1502
|
146
|
1503 if (r->connection->buffered) {
|
74
|
1504 (void) ngx_http_set_write_handler(r);
|
0
|
1505 return;
|
|
1506 }
|
|
1507
|
178
|
1508 if (!r->post_action) {
|
|
1509 r->request_complete = 1;
|
|
1510 }
|
|
1511
|
162
|
1512 if (ngx_http_post_action(r) == NGX_OK) {
|
126
|
1513 return;
|
|
1514 }
|
|
1515
|
0
|
1516 if (r->connection->read->timer_set) {
|
|
1517 ngx_del_timer(r->connection->read);
|
|
1518 }
|
|
1519
|
|
1520 if (r->connection->write->timer_set) {
|
|
1521 r->connection->write->delayed = 0;
|
|
1522 ngx_del_timer(r->connection->write);
|
|
1523 }
|
|
1524
|
138
|
1525 if (r->connection->destroyed) {
|
|
1526 return;
|
|
1527 }
|
|
1528
|
162
|
1529 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
0
|
1530
|
|
1531 if (!ngx_terminate
|
|
1532 && !ngx_exiting
|
|
1533 && r->keepalive != 0
|
|
1534 && clcf->keepalive_timeout > 0)
|
|
1535 {
|
|
1536 ngx_http_set_keepalive(r);
|
|
1537 return;
|
|
1538
|
|
1539 } else if (r->lingering_close && clcf->lingering_timeout > 0) {
|
|
1540 ngx_http_set_lingering_close(r);
|
|
1541 return;
|
|
1542 }
|
|
1543
|
|
1544 ngx_http_close_request(r, 0);
|
|
1545 }
|
|
1546
|
|
1547
|
74
|
1548 static ngx_int_t
|
50
|
1549 ngx_http_set_write_handler(ngx_http_request_t *r)
|
0
|
1550 {
|
|
1551 ngx_event_t *wev;
|
|
1552 ngx_http_core_loc_conf_t *clcf;
|
|
1553
|
58
|
1554 r->http_state = NGX_HTTP_WRITING_REQUEST_STATE;
|
|
1555
|
74
|
1556 r->write_event_handler = ngx_http_writer;
|
|
1557
|
0
|
1558 wev = r->connection->write;
|
|
1559
|
|
1560 if (wev->ready && wev->delayed) {
|
74
|
1561 return NGX_OK;
|
0
|
1562 }
|
|
1563
|
58
|
1564 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
0
|
1565 if (!wev->delayed) {
|
|
1566 ngx_add_timer(wev, clcf->send_timeout);
|
|
1567 }
|
|
1568
|
2
|
1569 if (ngx_handle_write_event(wev, clcf->send_lowat) == NGX_ERROR) {
|
0
|
1570 ngx_http_close_request(r, 0);
|
74
|
1571 return NGX_ERROR;
|
0
|
1572 }
|
74
|
1573
|
|
1574 return NGX_OK;
|
0
|
1575 }
|
|
1576
|
|
1577
|
58
|
1578 static void
|
|
1579 ngx_http_writer(ngx_http_request_t *r)
|
0
|
1580 {
|
|
1581 int rc;
|
58
|
1582 ngx_event_t *wev;
|
0
|
1583 ngx_connection_t *c;
|
|
1584 ngx_http_core_loc_conf_t *clcf;
|
|
1585
|
58
|
1586 c = r->connection;
|
|
1587 wev = c->write;
|
|
1588
|
132
|
1589 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, wev->log, 0,
|
|
1590 "http writer handler: \"%V?%V\"", &r->uri, &r->args);
|
0
|
1591
|
|
1592 if (wev->timedout) {
|
|
1593 if (!wev->delayed) {
|
54
|
1594 ngx_log_error(NGX_LOG_INFO, c->log, NGX_ETIMEDOUT,
|
|
1595 "client timed out");
|
|
1596 c->timedout = 1;
|
116
|
1597
|
162
|
1598 ngx_http_finalize_request(r, NGX_HTTP_REQUEST_TIME_OUT);
|
0
|
1599 return;
|
|
1600 }
|
|
1601
|
|
1602 wev->timedout = 0;
|
|
1603 wev->delayed = 0;
|
|
1604
|
|
1605 if (!wev->ready) {
|
102
|
1606 clcf = ngx_http_get_module_loc_conf(r->main, ngx_http_core_module);
|
0
|
1607 ngx_add_timer(wev, clcf->send_timeout);
|
|
1608
|
2
|
1609 if (ngx_handle_write_event(wev, clcf->send_lowat) == NGX_ERROR) {
|
118
|
1610 ngx_http_close_request(r, 0);
|
0
|
1611 }
|
|
1612
|
|
1613 return;
|
|
1614 }
|
|
1615
|
|
1616 } else {
|
|
1617 if (wev->delayed) {
|
|
1618 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, wev->log, 0,
|
|
1619 "http writer delayed");
|
|
1620
|
102
|
1621 clcf = ngx_http_get_module_loc_conf(r->main, ngx_http_core_module);
|
2
|
1622
|
|
1623 if (ngx_handle_write_event(wev, clcf->send_lowat) == NGX_ERROR) {
|
118
|
1624 ngx_http_close_request(r, 0);
|
0
|
1625 }
|
|
1626
|
|
1627 return;
|
|
1628 }
|
|
1629 }
|
|
1630
|
132
|
1631 rc = ngx_http_output_filter(r, NULL);
|
|
1632
|
|
1633 if (c->destroyed) {
|
|
1634 return;
|
58
|
1635 }
|
|
1636
|
132
|
1637 ngx_log_debug3(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
1638 "http writer output filter: %d, \"%V?%V\"",
|
|
1639 rc, &r->uri, &r->args);
|
0
|
1640
|
|
1641 if (rc == NGX_AGAIN) {
|
102
|
1642 clcf = ngx_http_get_module_loc_conf(r->main, ngx_http_core_module);
|
0
|
1643 if (!wev->ready && !wev->delayed) {
|
|
1644 ngx_add_timer(wev, clcf->send_timeout);
|
|
1645 }
|
|
1646
|
2
|
1647 if (ngx_handle_write_event(wev, clcf->send_lowat) == NGX_ERROR) {
|
118
|
1648 ngx_http_close_request(r, 0);
|
0
|
1649 }
|
|
1650
|
146
|
1651 if (r == r->main) {
|
|
1652 return;
|
|
1653 }
|
|
1654
|
|
1655 rc = NGX_OK;
|
0
|
1656 }
|
|
1657
|
132
|
1658 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, wev->log, 0,
|
|
1659 "http writer done: \"%V?%V\"", &r->uri, &r->args);
|
0
|
1660
|
|
1661 ngx_http_finalize_request(r, rc);
|
|
1662 }
|
|
1663
|
|
1664
|
50
|
1665 static void
|
58
|
1666 ngx_http_block_read(ngx_http_request_t *r)
|
0
|
1667 {
|
58
|
1668 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
1669 "http read blocked");
|
0
|
1670
|
|
1671 /* aio does not call this handler */
|
|
1672
|
58
|
1673 if ((ngx_event_flags & NGX_USE_LEVEL_EVENT)
|
|
1674 && r->connection->read->active)
|
|
1675 {
|
|
1676 if (ngx_del_event(r->connection->read, NGX_READ_EVENT, 0)
|
|
1677 == NGX_ERROR)
|
|
1678 {
|
0
|
1679 ngx_http_close_request(r, 0);
|
|
1680 }
|
|
1681 }
|
|
1682 }
|
|
1683
|
|
1684
|
50
|
1685 ngx_int_t
|
|
1686 ngx_http_discard_body(ngx_http_request_t *r)
|
0
|
1687 {
|
|
1688 ssize_t size;
|
|
1689 ngx_event_t *rev;
|
|
1690
|
146
|
1691 if (r != r->main) {
|
70
|
1692 return NGX_OK;
|
|
1693 }
|
|
1694
|
0
|
1695 rev = r->connection->read;
|
|
1696
|
|
1697 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, rev->log, 0, "http set discard body");
|
|
1698
|
|
1699 if (rev->timer_set) {
|
|
1700 ngx_del_timer(rev);
|
|
1701 }
|
|
1702
|
|
1703 if (r->headers_in.content_length_n <= 0) {
|
|
1704 return NGX_OK;
|
|
1705 }
|
|
1706
|
86
|
1707 r->discard_body = 1;
|
|
1708
|
0
|
1709 size = r->header_in->last - r->header_in->pos;
|
|
1710
|
|
1711 if (size) {
|
|
1712 if (r->headers_in.content_length_n > size) {
|
|
1713 r->headers_in.content_length_n -= size;
|
|
1714
|
|
1715 } else {
|
|
1716 r->header_in->pos += r->headers_in.content_length_n;
|
|
1717 r->headers_in.content_length_n = 0;
|
|
1718 return NGX_OK;
|
|
1719 }
|
|
1720 }
|
|
1721
|
58
|
1722 r->read_event_handler = ngx_http_read_discarded_body_handler;
|
|
1723
|
|
1724 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) {
|
0
|
1725 return NGX_HTTP_INTERNAL_SERVER_ERROR;
|
|
1726 }
|
|
1727
|
|
1728 return ngx_http_read_discarded_body(r);
|
|
1729 }
|
|
1730
|
|
1731
|
50
|
1732 static void
|
58
|
1733 ngx_http_read_discarded_body_handler(ngx_http_request_t *r)
|
0
|
1734 {
|
58
|
1735 ngx_int_t rc;
|
0
|
1736
|
|
1737 rc = ngx_http_read_discarded_body(r);
|
|
1738
|
|
1739 if (rc == NGX_AGAIN) {
|
58
|
1740 if (ngx_handle_read_event(r->connection->read, 0) == NGX_ERROR) {
|
0
|
1741 ngx_http_close_request(r, rc);
|
|
1742 return;
|
|
1743 }
|
|
1744 }
|
|
1745
|
|
1746 if (rc != NGX_OK) {
|
|
1747 ngx_http_close_request(r, rc);
|
|
1748 }
|
|
1749 }
|
|
1750
|
|
1751
|
50
|
1752 static ngx_int_t
|
|
1753 ngx_http_read_discarded_body(ngx_http_request_t *r)
|
0
|
1754 {
|
|
1755 ssize_t size, n;
|
|
1756 u_char buffer[NGX_HTTP_DISCARD_BUFFER_SIZE];
|
|
1757
|
|
1758 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
1759 "http read discarded body");
|
|
1760
|
|
1761 if (r->headers_in.content_length_n == 0) {
|
|
1762 return NGX_OK;
|
|
1763 }
|
|
1764
|
|
1765
|
|
1766 size = r->headers_in.content_length_n;
|
|
1767
|
|
1768 if (size > NGX_HTTP_DISCARD_BUFFER_SIZE) {
|
|
1769 size = NGX_HTTP_DISCARD_BUFFER_SIZE;
|
|
1770 }
|
|
1771
|
|
1772 n = r->connection->recv(r->connection, buffer, size);
|
|
1773
|
|
1774 if (n == NGX_ERROR) {
|
|
1775
|
132
|
1776 r->connection->error = 1;
|
0
|
1777
|
|
1778 /*
|
|
1779 * if a client request body is discarded then we already set
|
|
1780 * some HTTP response code for client and we can ignore the error
|
|
1781 */
|
|
1782
|
|
1783 return NGX_OK;
|
|
1784 }
|
|
1785
|
|
1786 if (n == NGX_AGAIN) {
|
|
1787 return NGX_AGAIN;
|
|
1788 }
|
|
1789
|
|
1790 r->headers_in.content_length_n -= n;
|
|
1791
|
|
1792 return NGX_OK;
|
|
1793 }
|
|
1794
|
|
1795
|
50
|
1796 static void
|
|
1797 ngx_http_set_keepalive(ngx_http_request_t *r)
|
0
|
1798 {
|
2
|
1799 int tcp_nodelay;
|
0
|
1800 ngx_int_t i;
|
|
1801 ngx_buf_t *b, *f;
|
|
1802 ngx_event_t *rev, *wev;
|
|
1803 ngx_connection_t *c;
|
|
1804 ngx_http_connection_t *hc;
|
|
1805 ngx_http_core_srv_conf_t *cscf;
|
|
1806 ngx_http_core_loc_conf_t *clcf;
|
|
1807
|
|
1808 c = r->connection;
|
|
1809 rev = c->read;
|
|
1810
|
|
1811 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "set http keepalive handler");
|
|
1812
|
32
|
1813 c->log->action = "closing request";
|
0
|
1814
|
|
1815 hc = r->http_connection;
|
|
1816 b = r->header_in;
|
|
1817
|
|
1818 if (b->pos < b->last) {
|
|
1819
|
|
1820 /* the pipelined request */
|
|
1821
|
|
1822 if (b != c->buffer) {
|
|
1823
|
4
|
1824 /*
|
|
1825 * If the large header buffers were allocated while the previous
|
|
1826 * request processing then we do not use c->buffer for
|
|
1827 * the pipelined request (see ngx_http_init_request()).
|
126
|
1828 *
|
4
|
1829 * Now we would move the large header buffers to the free list.
|
|
1830 */
|
0
|
1831
|
|
1832 cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
|
|
1833
|
|
1834 if (hc->free == NULL) {
|
|
1835 hc->free = ngx_palloc(c->pool,
|
|
1836 cscf->large_client_header_buffers.num * sizeof(ngx_buf_t *));
|
|
1837
|
|
1838 if (hc->free == NULL) {
|
26
|
1839 ngx_http_close_request(r, 0);
|
0
|
1840 return;
|
|
1841 }
|
|
1842 }
|
|
1843
|
|
1844 for (i = 0; i < hc->nbusy - 1; i++) {
|
|
1845 f = hc->busy[i];
|
|
1846 hc->free[hc->nfree++] = f;
|
|
1847 f->pos = f->start;
|
|
1848 f->last = f->start;
|
|
1849 }
|
|
1850
|
|
1851 hc->busy[0] = b;
|
|
1852 hc->nbusy = 1;
|
|
1853 }
|
|
1854 }
|
|
1855
|
26
|
1856 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
1857
|
118
|
1858 ngx_http_request_done(r, 0);
|
|
1859
|
0
|
1860 c->data = hc;
|
|
1861
|
|
1862 ngx_add_timer(rev, clcf->keepalive_timeout);
|
|
1863
|
58
|
1864 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) {
|
0
|
1865 ngx_http_close_connection(c);
|
|
1866 return;
|
|
1867 }
|
|
1868
|
|
1869 wev = c->write;
|
58
|
1870 wev->handler = ngx_http_empty_handler;
|
0
|
1871
|
|
1872 if (b->pos < b->last) {
|
|
1873
|
|
1874 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "pipelined request");
|
|
1875
|
116
|
1876 #if (NGX_STAT_STUB)
|
|
1877 ngx_atomic_fetch_add(ngx_stat_reading, 1);
|
|
1878 #endif
|
|
1879
|
0
|
1880 hc->pipeline = 1;
|
32
|
1881 c->log->action = "reading client pipelined request line";
|
116
|
1882
|
0
|
1883 ngx_http_init_request(rev);
|
|
1884 return;
|
|
1885 }
|
|
1886
|
|
1887 hc->pipeline = 0;
|
|
1888
|
4
|
1889 /*
|
|
1890 * To keep a memory footprint as small as possible for an idle
|
|
1891 * keepalive connection we try to free the ngx_http_request_t and
|
|
1892 * c->buffer's memory if they were allocated outside the c->pool.
|
|
1893 * The large header buffers are always allocated outside the c->pool and
|
|
1894 * are freed too.
|
|
1895 */
|
|
1896
|
0
|
1897 if (ngx_pfree(c->pool, r) == NGX_OK) {
|
|
1898 hc->request = NULL;
|
|
1899 }
|
|
1900
|
|
1901 b = c->buffer;
|
|
1902
|
|
1903 if (ngx_pfree(c->pool, b->start) == NGX_OK) {
|
4
|
1904
|
|
1905 /*
|
|
1906 * the special note for ngx_http_keepalive_handler() that
|
|
1907 * c->buffer's memory was freed
|
|
1908 */
|
|
1909
|
0
|
1910 b->pos = NULL;
|
|
1911
|
|
1912 } else {
|
|
1913 b->pos = b->start;
|
|
1914 b->last = b->start;
|
|
1915 }
|
|
1916
|
10
|
1917 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, c->log, 0, "hc free: %p %d",
|
0
|
1918 hc->free, hc->nfree);
|
|
1919
|
|
1920 if (hc->free) {
|
|
1921 for (i = 0; i < hc->nfree; i++) {
|
|
1922 ngx_pfree(c->pool, hc->free[i]);
|
|
1923 hc->free[i] = NULL;
|
|
1924 }
|
|
1925
|
|
1926 hc->nfree = 0;
|
|
1927 }
|
|
1928
|
10
|
1929 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, c->log, 0, "hc busy: %p %d",
|
0
|
1930 hc->busy, hc->nbusy);
|
|
1931
|
|
1932 if (hc->busy) {
|
|
1933 for (i = 0; i < hc->nbusy; i++) {
|
|
1934 ngx_pfree(c->pool, hc->busy[i]);
|
|
1935 hc->busy[i] = NULL;
|
|
1936 }
|
|
1937
|
|
1938 hc->nbusy = 0;
|
|
1939 }
|
|
1940
|
58
|
1941 rev->handler = ngx_http_keepalive_handler;
|
0
|
1942
|
132
|
1943 if (wev->active && (ngx_event_flags & NGX_USE_LEVEL_EVENT)) {
|
|
1944 if (ngx_del_event(wev, NGX_WRITE_EVENT, 0) == NGX_ERROR) {
|
|
1945 ngx_http_close_connection(c);
|
|
1946 return;
|
0
|
1947 }
|
|
1948 }
|
|
1949
|
32
|
1950 c->log->action = "keepalive";
|
0
|
1951
|
|
1952 if (c->tcp_nopush == NGX_TCP_NOPUSH_SET) {
|
50
|
1953 if (ngx_tcp_push(c->fd) == -1) {
|
0
|
1954 ngx_connection_error(c, ngx_socket_errno, ngx_tcp_push_n " failed");
|
|
1955 ngx_http_close_connection(c);
|
|
1956 return;
|
|
1957 }
|
2
|
1958
|
0
|
1959 c->tcp_nopush = NGX_TCP_NOPUSH_UNSET;
|
22
|
1960 tcp_nodelay = ngx_tcp_nodelay_and_tcp_nopush ? 1 : 0;
|
2
|
1961
|
|
1962 } else {
|
22
|
1963 tcp_nodelay = 1;
|
|
1964 }
|
|
1965
|
32
|
1966 if (tcp_nodelay
|
|
1967 && clcf->tcp_nodelay
|
|
1968 && c->tcp_nodelay == NGX_TCP_NODELAY_UNSET)
|
|
1969 {
|
22
|
1970 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "tcp_nodelay");
|
|
1971
|
|
1972 if (setsockopt(c->fd, IPPROTO_TCP, TCP_NODELAY,
|
|
1973 (const void *) &tcp_nodelay, sizeof(int)) == -1)
|
|
1974 {
|
|
1975 ngx_connection_error(c, ngx_socket_errno,
|
|
1976 "setsockopt(TCP_NODELAY) failed");
|
|
1977 ngx_http_close_connection(c);
|
|
1978 return;
|
2
|
1979 }
|
22
|
1980
|
32
|
1981 c->tcp_nodelay = NGX_TCP_NODELAY_SET;
|
0
|
1982 }
|
|
1983
|
|
1984 #if 0
|
4
|
1985 /* if ngx_http_request_t was freed then we need some other place */
|
0
|
1986 r->http_state = NGX_HTTP_KEEPALIVE_STATE;
|
|
1987 #endif
|
|
1988
|
|
1989 if (rev->ready) {
|
|
1990 ngx_http_keepalive_handler(rev);
|
|
1991 }
|
|
1992 }
|
|
1993
|
|
1994
|
50
|
1995 static void
|
|
1996 ngx_http_keepalive_handler(ngx_event_t *rev)
|
0
|
1997 {
|
50
|
1998 size_t size;
|
|
1999 ssize_t n;
|
|
2000 ngx_buf_t *b;
|
|
2001 ngx_connection_t *c;
|
0
|
2002
|
|
2003 c = rev->data;
|
|
2004
|
|
2005 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "http keepalive handler");
|
|
2006
|
|
2007 if (rev->timedout) {
|
|
2008 ngx_http_close_connection(c);
|
|
2009 return;
|
|
2010 }
|
|
2011
|
18
|
2012 #if (NGX_HAVE_KQUEUE)
|
0
|
2013
|
4
|
2014 if (ngx_event_flags & NGX_USE_KQUEUE_EVENT) {
|
136
|
2015 if (rev->pending_eof) {
|
32
|
2016 c->log->handler = NULL;
|
0
|
2017 ngx_log_error(NGX_LOG_INFO, c->log, rev->kq_errno,
|
10
|
2018 "kevent() reported that client %V closed "
|
32
|
2019 "keepalive connection", &c->addr_text);
|
22
|
2020 #if (NGX_HTTP_SSL)
|
|
2021 if (c->ssl) {
|
96
|
2022 c->ssl->no_send_shutdown = 1;
|
22
|
2023 }
|
|
2024 #endif
|
0
|
2025 ngx_http_close_connection(c);
|
|
2026 return;
|
|
2027 }
|
|
2028 }
|
|
2029
|
|
2030 #endif
|
|
2031
|
|
2032 b = c->buffer;
|
|
2033 size = b->end - b->start;
|
|
2034
|
|
2035 if (b->pos == NULL) {
|
4
|
2036
|
|
2037 /*
|
|
2038 * The c->buffer's memory was freed by ngx_http_set_keepalive().
|
|
2039 * However, the c->buffer->start and c->buffer->end were not changed
|
|
2040 * to keep the buffer size.
|
|
2041 */
|
|
2042
|
50
|
2043 b->pos = ngx_palloc(c->pool, size);
|
|
2044 if (b->pos == NULL) {
|
0
|
2045 ngx_http_close_connection(c);
|
|
2046 return;
|
|
2047 }
|
|
2048
|
|
2049 b->start = b->pos;
|
|
2050 b->last = b->pos;
|
|
2051 b->end = b->pos + size;
|
|
2052 }
|
|
2053
|
|
2054 /*
|
|
2055 * MSIE closes a keepalive connection with RST flag
|
|
2056 * so we ignore ECONNRESET here.
|
|
2057 */
|
|
2058
|
|
2059 c->log_error = NGX_ERROR_IGNORE_ECONNRESET;
|
|
2060 ngx_set_socket_errno(0);
|
|
2061
|
|
2062 n = c->recv(c, b->last, size);
|
|
2063 c->log_error = NGX_ERROR_INFO;
|
|
2064
|
|
2065 if (n == NGX_AGAIN) {
|
58
|
2066 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) {
|
24
|
2067 ngx_http_close_connection(c);
|
|
2068 }
|
|
2069
|
0
|
2070 return;
|
|
2071 }
|
|
2072
|
|
2073 if (n == NGX_ERROR) {
|
|
2074 ngx_http_close_connection(c);
|
|
2075 return;
|
|
2076 }
|
|
2077
|
32
|
2078 c->log->handler = NULL;
|
0
|
2079
|
|
2080 if (n == 0) {
|
|
2081 ngx_log_error(NGX_LOG_INFO, c->log, ngx_socket_errno,
|
32
|
2082 "client %V closed keepalive connection", &c->addr_text);
|
0
|
2083 ngx_http_close_connection(c);
|
|
2084 return;
|
|
2085 }
|
|
2086
|
|
2087 b->last += n;
|
32
|
2088
|
116
|
2089 #if (NGX_STAT_STUB)
|
|
2090 ngx_atomic_fetch_add(ngx_stat_reading, 1);
|
|
2091 #endif
|
|
2092
|
32
|
2093 c->log->handler = ngx_http_log_error;
|
|
2094 c->log->action = "reading client request line";
|
0
|
2095
|
|
2096 ngx_http_init_request(rev);
|
|
2097 }
|
|
2098
|
|
2099
|
50
|
2100 static void
|
|
2101 ngx_http_set_lingering_close(ngx_http_request_t *r)
|
126
|
2102 {
|
0
|
2103 ngx_event_t *rev, *wev;
|
|
2104 ngx_connection_t *c;
|
|
2105 ngx_http_core_loc_conf_t *clcf;
|
|
2106
|
|
2107 c = r->connection;
|
|
2108
|
|
2109 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
2110
|
|
2111 rev = c->read;
|
58
|
2112 rev->handler = ngx_http_lingering_close_handler;
|
0
|
2113
|
106
|
2114 r->lingering_time = ngx_time() + (time_t) (clcf->lingering_time / 1000);
|
0
|
2115 ngx_add_timer(rev, clcf->lingering_timeout);
|
|
2116
|
58
|
2117 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) {
|
0
|
2118 ngx_http_close_request(r, 0);
|
|
2119 return;
|
|
2120 }
|
|
2121
|
|
2122 wev = c->write;
|
58
|
2123 wev->handler = ngx_http_empty_handler;
|
0
|
2124
|
132
|
2125 if (wev->active && (ngx_event_flags & NGX_USE_LEVEL_EVENT)) {
|
|
2126 if (ngx_del_event(wev, NGX_WRITE_EVENT, 0) == NGX_ERROR) {
|
|
2127 ngx_http_close_request(r, 0);
|
|
2128 return;
|
0
|
2129 }
|
|
2130 }
|
|
2131
|
|
2132 if (ngx_shutdown_socket(c->fd, NGX_WRITE_SHUTDOWN) == -1) {
|
|
2133 ngx_connection_error(c, ngx_socket_errno,
|
|
2134 ngx_shutdown_socket_n " failed");
|
|
2135 ngx_http_close_request(r, 0);
|
|
2136 return;
|
|
2137 }
|
|
2138
|
|
2139 if (rev->ready) {
|
|
2140 ngx_http_lingering_close_handler(rev);
|
|
2141 }
|
|
2142 }
|
|
2143
|
|
2144
|
50
|
2145 static void
|
|
2146 ngx_http_lingering_close_handler(ngx_event_t *rev)
|
0
|
2147 {
|
|
2148 ssize_t n;
|
|
2149 ngx_msec_t timer;
|
|
2150 ngx_connection_t *c;
|
|
2151 ngx_http_request_t *r;
|
|
2152 ngx_http_core_loc_conf_t *clcf;
|
|
2153 u_char buffer[NGX_HTTP_LINGERING_BUFFER_SIZE];
|
|
2154
|
|
2155 c = rev->data;
|
|
2156 r = c->data;
|
|
2157
|
|
2158 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
2159 "http lingering close handler");
|
|
2160
|
|
2161 if (rev->timedout) {
|
126
|
2162 c->timedout = 1;
|
0
|
2163 ngx_http_close_request(r, 0);
|
|
2164 return;
|
|
2165 }
|
|
2166
|
|
2167 timer = r->lingering_time - ngx_time();
|
|
2168 if (timer <= 0) {
|
|
2169 ngx_http_close_request(r, 0);
|
|
2170 return;
|
|
2171 }
|
|
2172
|
|
2173 do {
|
|
2174 n = c->recv(c, buffer, NGX_HTTP_LINGERING_BUFFER_SIZE);
|
|
2175
|
|
2176 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0, "lingering read: %d", n);
|
|
2177
|
|
2178 if (n == NGX_ERROR || n == 0) {
|
|
2179 ngx_http_close_request(r, 0);
|
|
2180 return;
|
|
2181 }
|
|
2182
|
|
2183 } while (rev->ready);
|
|
2184
|
58
|
2185 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) {
|
26
|
2186 ngx_http_close_request(r, 0);
|
24
|
2187 return;
|
|
2188 }
|
|
2189
|
0
|
2190 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
2191
|
|
2192 timer *= 1000;
|
|
2193
|
|
2194 if (timer > clcf->lingering_timeout) {
|
|
2195 timer = clcf->lingering_timeout;
|
|
2196 }
|
|
2197
|
|
2198 ngx_add_timer(rev, timer);
|
|
2199 }
|
|
2200
|
|
2201
|
50
|
2202 void
|
|
2203 ngx_http_empty_handler(ngx_event_t *wev)
|
0
|
2204 {
|
|
2205 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, wev->log, 0, "http empty handler");
|
|
2206
|
|
2207 return;
|
|
2208 }
|
|
2209
|
|
2210
|
58
|
2211 void
|
|
2212 ngx_http_request_empty_handler(ngx_http_request_t *r)
|
|
2213 {
|
|
2214 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
132
|
2215 "http request empty handler");
|
58
|
2216
|
|
2217 return;
|
|
2218 }
|
|
2219
|
|
2220
|
50
|
2221 ngx_int_t
|
130
|
2222 ngx_http_send_special(ngx_http_request_t *r, ngx_uint_t flags)
|
0
|
2223 {
|
|
2224 ngx_buf_t *b;
|
|
2225 ngx_chain_t out;
|
|
2226
|
50
|
2227 b = ngx_calloc_buf(r->pool);
|
|
2228 if (b == NULL) {
|
0
|
2229 return NGX_ERROR;
|
|
2230 }
|
|
2231
|
130
|
2232 if (flags & NGX_HTTP_LAST) {
|
|
2233 b->last_buf = 1;
|
|
2234 }
|
|
2235
|
|
2236 if (flags & NGX_HTTP_FLUSH) {
|
|
2237 b->flush = 1;
|
|
2238 }
|
|
2239
|
0
|
2240 out.buf = b;
|
|
2241 out.next = NULL;
|
|
2242
|
|
2243 return ngx_http_output_filter(r, &out);
|
|
2244 }
|
|
2245
|
|
2246
|
162
|
2247 static ngx_int_t
|
|
2248 ngx_http_post_action(ngx_http_request_t *r)
|
|
2249 {
|
|
2250 ngx_http_core_loc_conf_t *clcf;
|
|
2251
|
|
2252 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
2253
|
|
2254 if (clcf->post_action.data == NULL) {
|
|
2255 return NGX_DECLINED;
|
|
2256 }
|
|
2257
|
172
|
2258 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
2259 "post action: \"%V\"", &clcf->post_action);
|
|
2260
|
162
|
2261 r->http_version = NGX_HTTP_VERSION_9;
|
|
2262 r->header_only = 1;
|
178
|
2263 r->post_action = 1;
|
162
|
2264
|
|
2265 ngx_http_internal_redirect(r, &clcf->post_action, NULL);
|
|
2266
|
|
2267 return NGX_OK;
|
|
2268 }
|
|
2269
|
|
2270
|
|
2271 static void
|
58
|
2272 ngx_http_close_request(ngx_http_request_t *r, ngx_int_t error)
|
0
|
2273 {
|
118
|
2274 ngx_connection_t *c;
|
|
2275 ngx_http_cleanup_t *cln;
|
|
2276
|
|
2277 c = r->connection;
|
|
2278 r = r->main;
|
|
2279
|
|
2280 for (cln = r->cleanup; cln; cln = cln->next) {
|
|
2281 if (cln->handler) {
|
|
2282 cln->handler(cln->data);
|
|
2283 }
|
|
2284 }
|
|
2285
|
|
2286 ngx_http_request_done(r, error);
|
|
2287 ngx_http_close_connection(c);
|
|
2288 }
|
|
2289
|
|
2290
|
162
|
2291 static void
|
118
|
2292 ngx_http_request_done(ngx_http_request_t *r, ngx_int_t error)
|
|
2293 {
|
|
2294 ngx_log_t *log;
|
130
|
2295 ngx_uint_t i, n;
|
118
|
2296 struct linger linger;
|
|
2297 ngx_http_log_ctx_t *ctx;
|
130
|
2298 ngx_http_handler_pt *log_handler;
|
118
|
2299 ngx_http_core_loc_conf_t *clcf;
|
|
2300 ngx_http_core_main_conf_t *cmcf;
|
0
|
2301
|
|
2302 log = r->connection->log;
|
|
2303
|
|
2304 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, log, 0, "http close request");
|
|
2305
|
|
2306 if (r->pool == NULL) {
|
80
|
2307 ngx_log_error(NGX_LOG_ALERT, log, 0, "http request already closed");
|
0
|
2308 return;
|
|
2309 }
|
|
2310
|
|
2311 #if (NGX_STAT_STUB)
|
116
|
2312
|
0
|
2313 if (r->stat_reading) {
|
110
|
2314 ngx_atomic_fetch_add(ngx_stat_reading, -1);
|
0
|
2315 }
|
|
2316
|
|
2317 if (r->stat_writing) {
|
110
|
2318 ngx_atomic_fetch_add(ngx_stat_writing, -1);
|
0
|
2319 }
|
116
|
2320
|
0
|
2321 #endif
|
|
2322
|
|
2323 if (error && r->headers_out.status == 0) {
|
|
2324 r->headers_out.status = error;
|
|
2325 }
|
|
2326
|
118
|
2327 cmcf = ngx_http_get_module_main_conf(r, ngx_http_core_module);
|
|
2328
|
130
|
2329 log_handler = cmcf->phases[NGX_HTTP_LOG_PHASE].handlers.elts;
|
|
2330 n = cmcf->phases[NGX_HTTP_LOG_PHASE].handlers.nelts;
|
|
2331 for (i = 0; i < n; i++) {
|
|
2332 log_handler[i](r);
|
118
|
2333 }
|
0
|
2334
|
|
2335 if (r->connection->timedout) {
|
|
2336 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
2337
|
|
2338 if (clcf->reset_timedout_connection) {
|
58
|
2339 linger.l_onoff = 1;
|
|
2340 linger.l_linger = 0;
|
0
|
2341
|
|
2342 if (setsockopt(r->connection->fd, SOL_SOCKET, SO_LINGER,
|
58
|
2343 (const void *) &linger, sizeof(struct linger)) == -1)
|
0
|
2344 {
|
|
2345 ngx_log_error(NGX_LOG_ALERT, log, ngx_socket_errno,
|
|
2346 "setsockopt(SO_LINGER) failed");
|
|
2347 }
|
|
2348 }
|
|
2349 }
|
|
2350
|
58
|
2351 /* the various request strings were allocated from r->pool */
|
0
|
2352 ctx = log->data;
|
10
|
2353 ctx->request = NULL;
|
0
|
2354
|
|
2355 r->request_line.len = 0;
|
|
2356
|
132
|
2357 r->connection->destroyed = 1;
|
|
2358
|
0
|
2359 ngx_destroy_pool(r->pool);
|
|
2360 }
|
|
2361
|
|
2362
|
80
|
2363 static void
|
50
|
2364 ngx_http_close_connection(ngx_connection_t *c)
|
0
|
2365 {
|
28
|
2366 ngx_pool_t *pool;
|
|
2367
|
0
|
2368 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
2369 "close http connection: %d", c->fd);
|
|
2370
|
88
|
2371 #if (NGX_HTTP_SSL)
|
2
|
2372
|
|
2373 if (c->ssl) {
|
|
2374 if (ngx_ssl_shutdown(c) == NGX_AGAIN) {
|
126
|
2375 c->ssl->handler = ngx_http_close_connection;
|
2
|
2376 return;
|
|
2377 }
|
|
2378 }
|
|
2379
|
|
2380 #endif
|
|
2381
|
0
|
2382 #if (NGX_STAT_STUB)
|
110
|
2383 ngx_atomic_fetch_add(ngx_stat_active, -1);
|
0
|
2384 #endif
|
|
2385
|
132
|
2386 c->destroyed = 1;
|
|
2387
|
28
|
2388 pool = c->pool;
|
|
2389
|
0
|
2390 ngx_close_connection(c);
|
28
|
2391
|
50
|
2392 ngx_destroy_pool(pool);
|
0
|
2393 }
|
|
2394
|
|
2395
|
50
|
2396 static u_char *
|
|
2397 ngx_http_log_error(ngx_log_t *log, u_char *buf, size_t len)
|
0
|
2398 {
|
32
|
2399 u_char *p;
|
54
|
2400 ngx_http_request_t *r;
|
32
|
2401 ngx_http_log_ctx_t *ctx;
|
10
|
2402
|
32
|
2403 if (log->action) {
|
58
|
2404 p = ngx_snprintf(buf, len, " while %s", log->action);
|
10
|
2405 len -= p - buf;
|
54
|
2406 buf = p;
|
10
|
2407 }
|
|
2408
|
58
|
2409 ctx = log->data;
|
|
2410
|
54
|
2411 p = ngx_snprintf(buf, len, ", client: %V", ctx->client);
|
58
|
2412 len -= p - buf;
|
54
|
2413
|
|
2414 r = ctx->request;
|
|
2415
|
58
|
2416 if (r) {
|
|
2417 return r->log_handler(r, p, len);
|
0
|
2418 }
|
10
|
2419
|
58
|
2420 return p;
|
|
2421 }
|
|
2422
|
|
2423
|
|
2424 static u_char *
|
|
2425 ngx_http_log_error_handler(ngx_http_request_t *r, u_char *buf, size_t len)
|
|
2426 {
|
|
2427 u_char *p;
|
54
|
2428
|
|
2429 if (r->server_name.data) {
|
|
2430 p = ngx_snprintf(buf, len, ", server: %V", &r->server_name);
|
52
|
2431 len -= p - buf;
|
54
|
2432 buf = p;
|
52
|
2433 }
|
|
2434
|
54
|
2435 if (r->unparsed_uri.data) {
|
|
2436 p = ngx_snprintf(buf, len, ", URL: \"%V\"", &r->unparsed_uri);
|
|
2437 len -= p - buf;
|
|
2438 buf = p;
|
|
2439
|
|
2440 } else {
|
|
2441 if (r->request_line.data == NULL && r->request_start) {
|
|
2442 for (p = r->request_start; p < r->header_in->last; p++) {
|
|
2443 if (*p == CR || *p == LF) {
|
|
2444 break;
|
|
2445 }
|
|
2446 }
|
|
2447
|
|
2448 r->request_line.len = p - r->request_start;
|
|
2449 r->request_line.data = r->request_start;
|
|
2450 }
|
|
2451
|
|
2452 if (r->request_line.len) {
|
|
2453 p = ngx_snprintf(buf, len, ", request: \"%V\"", &r->request_line);
|
|
2454 len -= p - buf;
|
|
2455 buf = p;
|
|
2456 }
|
10
|
2457 }
|
|
2458
|
54
|
2459 return ngx_http_log_error_info(r, buf, len);
|
0
|
2460 }
|
54
|
2461
|
|
2462
|
|
2463 u_char *
|
|
2464 ngx_http_log_error_info(ngx_http_request_t *r, u_char *buf, size_t len)
|
|
2465 {
|
|
2466 u_char *p;
|
|
2467
|
|
2468 if (r->headers_in.host) {
|
|
2469 p = ngx_snprintf(buf, len, ", host: \"%V\"",
|
|
2470 &r->headers_in.host->value);
|
|
2471 len -= p - buf;
|
|
2472 buf = p;
|
|
2473 }
|
|
2474
|
|
2475 if (r->headers_in.referer) {
|
|
2476 p = ngx_snprintf(buf, len, ", referrer: \"%V\"",
|
|
2477 &r->headers_in.referer->value);
|
|
2478 buf = p;
|
|
2479 }
|
|
2480
|
|
2481 return buf;
|
|
2482 }
|