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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26
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28 static ngx_int_t 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 static ngx_int_t ngx_http_postponed_handler(ngx_http_request_t *r);
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34
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35 static void ngx_http_block_read(ngx_http_request_t *r);
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36 static void ngx_http_read_discarded_body_handler(ngx_http_request_t *r);
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0
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37 static ngx_int_t ngx_http_read_discarded_body(ngx_http_request_t *r);
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38
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39 static void ngx_http_set_keepalive(ngx_http_request_t *r);
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40 static void ngx_http_keepalive_handler(ngx_event_t *ev);
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41 static void ngx_http_set_lingering_close(ngx_http_request_t *r);
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42 static void ngx_http_lingering_close_handler(ngx_event_t *ev);
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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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44 static void ngx_http_close_connection(ngx_connection_t *c);
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0
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45
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32
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46 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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47 static u_char *ngx_http_log_error_handler(ngx_http_request_t *r, u_char *buf,
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48 size_t len);
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0
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49
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88
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50 #if (NGX_HTTP_SSL)
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51 static void ngx_http_ssl_handshake(ngx_event_t *rev);
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96
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52 static void ngx_http_ssl_handshake_handler(ngx_connection_t *c);
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88
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53 static void ngx_http_ssl_close_handler(ngx_event_t *ev);
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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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0
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98 #if (NGX_HTTP_GZIP)
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99 { ngx_string("Accept-Encoding"),
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58
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100 offsetof(ngx_http_headers_in_t, accept_encoding),
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101 ngx_http_process_header_line },
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102
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103 { ngx_string("Via"), offsetof(ngx_http_headers_in_t, via),
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104 ngx_http_process_header_line },
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0
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105 #endif
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106
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107 { ngx_string("Authorization"),
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58
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108 offsetof(ngx_http_headers_in_t, authorization),
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72
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109 ngx_http_process_unique_header_line },
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58
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110
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111 { ngx_string("Keep-Alive"), offsetof(ngx_http_headers_in_t, keep_alive),
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112 ngx_http_process_header_line },
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0
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113
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114 #if (NGX_HTTP_PROXY)
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115 { ngx_string("X-Forwarded-For"),
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58
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116 offsetof(ngx_http_headers_in_t, x_forwarded_for),
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117 ngx_http_process_header_line },
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0
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118 #endif
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28
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119
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38
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120 #if (NGX_HTTP_HEADERS)
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121 { ngx_string("Accept"), offsetof(ngx_http_headers_in_t, accept),
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122 ngx_http_process_header_line },
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123
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38
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124 { ngx_string("Accept-Language"),
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125 offsetof(ngx_http_headers_in_t, accept_language),
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126 ngx_http_process_header_line },
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38
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127 #endif
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128
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58
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129 { ngx_string("Cookie"), 0, ngx_http_process_cookie },
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130
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131 { ngx_null_string, 0, NULL }
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0
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132 };
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133
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134
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50
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135 void
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136 ngx_http_init_connection(ngx_connection_t *c)
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0
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137 {
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138 ngx_event_t *rev;
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139 ngx_http_log_ctx_t *ctx;
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140
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50
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141 ctx = ngx_palloc(c->pool, sizeof(ngx_http_log_ctx_t));
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142 if (ctx == NULL) {
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0
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143 ngx_http_close_connection(c);
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144 return;
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145 }
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146
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10
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147 ctx->client = &c->addr_text;
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148 ctx->request = NULL;
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32
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149
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150 c->log->connection = c->number;
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151 c->log->handler = ngx_http_log_error;
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0
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152 c->log->data = ctx;
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32
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153 c->log->action = "reading client request line";
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154
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0
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155 c->log_error = NGX_ERROR_INFO;
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156
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157 rev = c->read;
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58
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158 rev->handler = ngx_http_init_request;
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159
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160 /* STUB: epoll edge */ c->write->handler = ngx_http_empty_handler;
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0
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161
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116
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162 #if (NGX_STAT_STUB)
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163 ngx_atomic_fetch_add(ngx_stat_reading, 1);
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164 #endif
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165
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0
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166 if (rev->ready) {
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167 /* the deferred accept(), rtsig, aio, iocp */
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168
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169 if (ngx_accept_mutex) {
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112
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170 ngx_post_event(rev, &ngx_posted_events);
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0
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171 return;
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172 }
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173
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174 ngx_http_init_request(rev);
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175 return;
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176 }
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177
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178 ngx_add_timer(rev, c->listening->post_accept_timeout);
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179
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180 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) {
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116
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181 #if (NGX_STAT_STUB)
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182 ngx_atomic_fetch_add(ngx_stat_reading, -1);
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183 #endif
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184 ngx_http_close_connection(c);
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185 return;
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186 }
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187 }
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188
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189
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50
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190 static
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191 void ngx_http_init_request(ngx_event_t *rev)
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0
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192 {
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193 ngx_uint_t i;
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194 socklen_t len;
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28
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195 struct sockaddr_in sin;
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196 ngx_connection_t *c;
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197 ngx_http_request_t *r;
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198 ngx_http_in_port_t *in_port;
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199 ngx_http_in_addr_t *in_addr;
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54
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200 ngx_http_log_ctx_t *ctx;
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201 ngx_http_connection_t *hc;
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202 ngx_http_server_name_t *server_name;
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203 ngx_http_core_srv_conf_t *cscf;
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204 ngx_http_core_loc_conf_t *clcf;
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205 #if (NGX_HTTP_SSL)
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206 ngx_http_ssl_srv_conf_t *sscf;
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207 #endif
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208
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116
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209 #if (NGX_STAT_STUB)
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210 ngx_atomic_fetch_add(ngx_stat_reading, -1);
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211 #endif
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212
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213 c = rev->data;
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214
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215 if (rev->timedout) {
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216 ngx_log_error(NGX_LOG_INFO, c->log, NGX_ETIMEDOUT, "client timed out");
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217
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218 ngx_http_close_connection(c);
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219 return;
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220 }
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221
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222 hc = c->data;
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223
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116
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224 if (hc == NULL) {
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225 hc = ngx_pcalloc(c->pool, sizeof(ngx_http_connection_t));
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226 if (hc == NULL) {
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0
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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
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232 r = hc->request;
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233
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234 if (r) {
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235 ngx_memzero(r, sizeof(ngx_http_request_t));
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236
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237 r->pipeline = hc->pipeline;
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238
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239 if (hc->nbusy) {
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240 r->header_in = hc->busy[0];
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241 }
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242
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243 } else {
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50
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244 r = ngx_pcalloc(c->pool, sizeof(ngx_http_request_t));
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245 if (r == NULL) {
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0
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246 ngx_http_close_connection(c);
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247 return;
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248 }
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249
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250 hc->request = r;
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251 }
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252
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253 c->data = r;
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254 r->http_connection = hc;
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255
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256 c->sent = 0;
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257 r->signature = NGX_HTTP_MODULE;
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258
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259 /* find the server configuration for the address:port */
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260
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261 /* AF_INET only */
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262
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263 in_port = c->servers;
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264 in_addr = in_port->addrs.elts;
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265
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266 r->port = in_port->port;
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267 r->port_text = &in_port->port_text;
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268
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269 i = 0;
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270
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271 if (in_port->addrs.nelts > 1) {
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272
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273 /*
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274 * There are several addresses on this port and one of them
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275 * is the "*:port" wildcard so getsockname() is needed to determine
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276 * the server address.
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277 *
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278 * AcceptEx() already gave this address.
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279 */
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280
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10
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281 #if (NGX_WIN32)
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0
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282 if (c->local_sockaddr) {
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283 r->in_addr =
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284 ((struct sockaddr_in *) c->local_sockaddr)->sin_addr.s_addr;
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285
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28
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286 } else
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0
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287 #endif
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28
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288 {
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0
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289 len = sizeof(struct sockaddr_in);
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28
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290 if (getsockname(c->fd, (struct sockaddr *) &sin, &len) == -1) {
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0
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291 ngx_connection_error(c, ngx_socket_errno,
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292 "getsockname() failed");
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293 ngx_http_close_connection(c);
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294 return;
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295 }
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296
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28
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297 r->in_addr = sin.sin_addr.s_addr;
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0
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298 }
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299
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300 /* the last in_port->addrs address is "*" */
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301
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302 for ( /* void */ ; i < in_port->addrs.nelts - 1; i++) {
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303 if (in_addr[i].addr == r->in_addr) {
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304 break;
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305 }
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306 }
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307
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308 } else {
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309 r->in_addr = in_addr[0].addr;
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310 }
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311
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26
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312 r->virtual_names = &in_addr[i];
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0
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313
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314 /* the default server configuration for the address:port */
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315 cscf = in_addr[i].core_srv_conf;
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316
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317 r->main_conf = cscf->ctx->main_conf;
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318 r->srv_conf = cscf->ctx->srv_conf;
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319 r->loc_conf = cscf->ctx->loc_conf;
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320
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58
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321 rev->handler = ngx_http_process_request_line;
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0
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322
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323 #if (NGX_HTTP_SSL)
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324
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325 sscf = ngx_http_get_module_srv_conf(r, ngx_http_ssl_module);
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326 if (sscf->enable) {
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327
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328 if (c->ssl == NULL) {
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96
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329 if (ngx_ssl_create_connection(&sscf->ssl, c, NGX_SSL_BUFFER)
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56
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330 == NGX_ERROR)
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0
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331 {
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332 ngx_http_close_connection(c);
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333 return;
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334 }
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335
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58
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336 rev->handler = ngx_http_ssl_handshake;
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0
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337 }
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338
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62
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339 r->main_filter_need_in_memory = 1;
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0
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340 }
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341
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342 #endif
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343
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344 server_name = cscf->server_names.elts;
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6
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345 r->server_name = server_name->name;
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0
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346
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347 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
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348 c->log->file = clcf->err_log->file;
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349 if (!(c->log->log_level & NGX_LOG_DEBUG_CONNECTION)) {
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350 c->log->log_level = clcf->err_log->log_level;
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351 }
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352
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353 if (c->buffer == NULL) {
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354 c->buffer = ngx_create_temp_buf(c->pool,
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355 cscf->client_header_buffer_size);
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356 if (c->buffer == NULL) {
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357 ngx_http_close_connection(c);
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358 return;
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359 }
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360 }
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361
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362 if (r->header_in == NULL) {
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363 r->header_in = c->buffer;
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364 }
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365
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50
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366 r->pool = ngx_create_pool(cscf->request_pool_size, c->log);
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367 if (r->pool == NULL) {
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0
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368 ngx_http_close_connection(c);
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369 return;
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370 }
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371
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372
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373 if (ngx_list_init(&r->headers_out.headers, r->pool, 20,
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58
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374 sizeof(ngx_table_elt_t)) == NGX_ERROR)
|
0
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375 {
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376 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
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377 ngx_http_close_connection(c);
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378 return;
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379 }
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380
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381
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382 r->ctx = ngx_pcalloc(r->pool, sizeof(void *) * ngx_http_max_module);
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383 if (r->ctx == NULL) {
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384 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
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385 ngx_http_close_connection(c);
|
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386 return;
|
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387 }
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388
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389 c->single_connection = 1;
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390 r->connection = c;
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391
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102
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392 r->main = r;
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393
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46
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394 r->start_time = ngx_time();
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395
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0
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396 r->headers_in.content_length_n = -1;
|
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397 r->headers_in.keep_alive_n = -1;
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398 r->headers_out.content_length_n = -1;
|
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399 r->headers_out.last_modified_time = -1;
|
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400
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401 r->http_state = NGX_HTTP_READING_REQUEST_STATE;
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402
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54
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403 ctx = c->log->data;
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404 ctx->request = r;
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58
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405 r->log_handler = ngx_http_log_error_handler;
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54
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406
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0
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407 #if (NGX_STAT_STUB)
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110
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408 ngx_atomic_fetch_add(ngx_stat_reading, 1);
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26
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409 r->stat_reading = 1;
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110
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410 ngx_atomic_fetch_add(ngx_stat_requests, 1);
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0
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411 #endif
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412
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58
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413 rev->handler(rev);
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0
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414 }
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415
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416
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417 #if (NGX_HTTP_SSL)
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418
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50
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419 static void
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420 ngx_http_ssl_handshake(ngx_event_t *rev)
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0
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421 {
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10
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422 u_char buf[1];
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423 ssize_t n;
|
0
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424 ngx_int_t rc;
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425 ngx_connection_t *c;
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426 ngx_http_request_t *r;
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427
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428 c = rev->data;
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429 r = c->data;
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430
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431 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, rev->log, 0,
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432 "http check ssl handshake");
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433
|
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434 if (rev->timedout) {
|
54
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435 ngx_log_error(NGX_LOG_INFO, c->log, NGX_ETIMEDOUT, "client timed out");
|
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436 c->timedout = 1;
|
|
437 ngx_http_close_request(r, NGX_HTTP_REQUEST_TIME_OUT);
|
|
438 ngx_http_close_connection(c);
|
0
|
439 return;
|
|
440 }
|
|
441
|
|
442 n = recv(c->fd, buf, 1, MSG_PEEK);
|
|
443
|
|
444 if (n == -1 && ngx_socket_errno == NGX_EAGAIN) {
|
|
445 return;
|
|
446 }
|
|
447
|
|
448 if (n == 1) {
|
|
449 if (buf[0] == 0x80 /* SSLv2 */ || buf[0] == 0x16 /* SSLv3/TLSv1 */) {
|
|
450 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, rev->log, 0,
|
10
|
451 "https ssl handshake: 0x%02Xd", buf[0]);
|
0
|
452
|
|
453 rc = ngx_ssl_handshake(c);
|
|
454
|
96
|
455 if (rc == NGX_AGAIN) {
|
|
456 c->ssl->handler = ngx_http_ssl_handshake_handler;
|
0
|
457 return;
|
|
458 }
|
|
459
|
96
|
460 ngx_http_ssl_handshake_handler(c);
|
|
461
|
|
462 return;
|
0
|
463
|
|
464 } else {
|
|
465 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, rev->log, 0,
|
|
466 "plain http");
|
|
467
|
|
468 r->plain_http = 1;
|
|
469 }
|
|
470 }
|
|
471
|
58
|
472 rev->handler = ngx_http_process_request_line;
|
0
|
473 ngx_http_process_request_line(rev);
|
|
474 }
|
|
475
|
96
|
476
|
|
477 static void
|
|
478 ngx_http_ssl_handshake_handler(ngx_connection_t *c)
|
|
479 {
|
|
480 ngx_http_request_t *r;
|
|
481
|
|
482 if (c->ssl->handshaked) {
|
|
483
|
|
484 /*
|
|
485 * The majority of browsers do not send the "close notify" alert.
|
|
486 * Among them are MSIE, old Mozilla, Netscape 4, Konqueror,
|
|
487 * and Links. And what is more, MSIE ignores the server's alert.
|
|
488 *
|
|
489 * Opera and recent Mozilla send the alert.
|
|
490 */
|
|
491
|
|
492 c->ssl->no_wait_shutdown = 1;
|
|
493
|
|
494 c->read->handler = ngx_http_process_request_line;
|
|
495 /* STUB: epoll edge */ c->write->handler = ngx_http_empty_handler;
|
|
496
|
|
497 ngx_http_process_request_line(c->read);
|
|
498
|
|
499 return;
|
|
500 }
|
|
501
|
|
502 r = c->data;
|
|
503
|
|
504 ngx_http_close_request(r, NGX_HTTP_BAD_REQUEST);
|
|
505 ngx_http_close_connection(r->connection);
|
|
506
|
|
507 return;
|
|
508 }
|
|
509
|
|
510
|
0
|
511 #endif
|
|
512
|
|
513
|
50
|
514 static void
|
|
515 ngx_http_process_request_line(ngx_event_t *rev)
|
0
|
516 {
|
|
517 ssize_t n;
|
|
518 ngx_int_t rc, rv;
|
|
519 ngx_connection_t *c;
|
|
520 ngx_http_request_t *r;
|
|
521 ngx_http_log_ctx_t *ctx;
|
|
522
|
|
523 c = rev->data;
|
|
524 r = c->data;
|
|
525
|
|
526 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, rev->log, 0,
|
|
527 "http process request line");
|
|
528
|
|
529 if (rev->timedout) {
|
54
|
530 ngx_log_error(NGX_LOG_INFO, c->log, NGX_ETIMEDOUT, "client timed out");
|
|
531 c->timedout = 1;
|
|
532 ngx_http_close_request(r, NGX_HTTP_REQUEST_TIME_OUT);
|
|
533 ngx_http_close_connection(c);
|
0
|
534 return;
|
|
535 }
|
|
536
|
|
537 rc = NGX_AGAIN;
|
|
538
|
|
539 for ( ;; ) {
|
|
540
|
|
541 if (rc == NGX_AGAIN) {
|
|
542 n = ngx_http_read_request_header(r);
|
|
543
|
|
544 if (n == NGX_AGAIN || n == NGX_ERROR) {
|
|
545 return;
|
|
546 }
|
|
547 }
|
|
548
|
|
549 rc = ngx_http_parse_request_line(r, r->header_in);
|
|
550
|
|
551 if (rc == NGX_OK) {
|
|
552
|
|
553 /* the request line has been parsed successfully */
|
|
554
|
10
|
555 r->request_line.len = r->request_end - r->request_start;
|
|
556 r->request_line.data = r->request_start;
|
|
557
|
0
|
558
|
|
559 if (r->args_start) {
|
|
560 r->uri.len = r->args_start - 1 - r->uri_start;
|
|
561 } else {
|
|
562 r->uri.len = r->uri_end - r->uri_start;
|
|
563 }
|
|
564
|
18
|
565
|
2
|
566 if (r->complex_uri || r->quoted_uri) {
|
10
|
567
|
50
|
568 r->uri.data = ngx_palloc(r->pool, r->uri.len + 1);
|
|
569 if (r->uri.data == NULL) {
|
10
|
570 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
571 ngx_http_close_connection(c);
|
|
572 return;
|
|
573 }
|
|
574
|
0
|
575 rc = ngx_http_parse_complex_uri(r);
|
|
576
|
54
|
577 if (rc == NGX_HTTP_PARSE_INVALID_REQUEST) {
|
|
578 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
579 "client sent invalid request");
|
|
580 ngx_http_finalize_request(r, NGX_HTTP_BAD_REQUEST);
|
0
|
581 return;
|
|
582 }
|
|
583
|
|
584 } else {
|
10
|
585 r->uri.data = r->uri_start;
|
0
|
586 }
|
|
587
|
18
|
588
|
10
|
589 r->unparsed_uri.len = r->uri_end - r->uri_start;
|
|
590 r->unparsed_uri.data = r->uri_start;
|
|
591
|
0
|
592
|
58
|
593 r->method_name.len = r->method_end - r->request_start + 1;
|
|
594 r->method_name.data = r->request_line.data;
|
0
|
595
|
10
|
596
|
28
|
597 if (r->http_protocol.data) {
|
|
598 r->http_protocol.len = r->request_end - r->http_protocol.data;
|
|
599 }
|
|
600
|
|
601
|
0
|
602 if (r->uri_ext) {
|
|
603 if (r->args_start) {
|
|
604 r->exten.len = r->args_start - 1 - r->uri_ext;
|
|
605 } else {
|
|
606 r->exten.len = r->uri_end - r->uri_ext;
|
|
607 }
|
|
608
|
10
|
609 r->exten.data = r->uri_ext;
|
0
|
610 }
|
|
611
|
10
|
612
|
0
|
613 if (r->args_start && r->uri_end > r->args_start) {
|
|
614 r->args.len = r->uri_end - r->args_start;
|
10
|
615 r->args.data = r->args_start;
|
0
|
616 }
|
|
617
|
10
|
618
|
|
619 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
620 "http request line: \"%V\"", &r->request_line);
|
|
621
|
0
|
622 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
10
|
623 "http uri: \"%V\"", &r->uri);
|
0
|
624
|
|
625 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
10
|
626 "http args: \"%V\"", &r->args);
|
0
|
627
|
|
628 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
10
|
629 "http exten: \"%V\"", &r->exten);
|
|
630
|
0
|
631 if (r->http_version < NGX_HTTP_VERSION_10) {
|
86
|
632
|
|
633 if (rev->timer_set) {
|
|
634 ngx_del_timer(rev);
|
|
635 }
|
|
636
|
|
637 #if (NGX_STAT_STUB)
|
110
|
638 ngx_atomic_fetch_add(ngx_stat_reading, -1);
|
86
|
639 r->stat_reading = 0;
|
110
|
640 ngx_atomic_fetch_add(ngx_stat_writing, 1);
|
86
|
641 r->stat_writing = 1;
|
|
642 #endif
|
|
643
|
|
644 rev->handler = ngx_http_request_handler;
|
|
645 c->write->handler = ngx_http_request_handler;
|
58
|
646 r->read_event_handler = ngx_http_block_read;
|
86
|
647
|
0
|
648 ngx_http_handler(r);
|
86
|
649
|
0
|
650 return;
|
|
651 }
|
|
652
|
|
653
|
|
654 if (ngx_list_init(&r->headers_in.headers, r->pool, 20,
|
|
655 sizeof(ngx_table_elt_t)) == NGX_ERROR)
|
|
656 {
|
|
657 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
658 ngx_http_close_connection(c);
|
|
659 return;
|
|
660 }
|
|
661
|
|
662
|
48
|
663 if (ngx_array_init(&r->headers_in.cookies, r->pool, 2,
|
0
|
664 sizeof(ngx_table_elt_t *)) == NGX_ERROR)
|
|
665 {
|
|
666 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
667 ngx_http_close_connection(c);
|
|
668 return;
|
|
669 }
|
|
670
|
32
|
671 c->log->action = "reading client request headers";
|
0
|
672
|
58
|
673 rev->handler = ngx_http_process_request_headers;
|
0
|
674 ngx_http_process_request_headers(rev);
|
|
675
|
|
676 return;
|
54
|
677 }
|
|
678
|
|
679 if (rc != NGX_AGAIN) {
|
0
|
680
|
|
681 /* there was error while a request line parsing */
|
|
682
|
54
|
683 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
684 ngx_http_client_errors[rc - NGX_HTTP_CLIENT_ERROR]);
|
|
685 ngx_http_finalize_request(r, NGX_HTTP_BAD_REQUEST);
|
0
|
686 return;
|
|
687 }
|
|
688
|
|
689 /* NGX_AGAIN: a request line parsing is still incomplete */
|
|
690
|
|
691 if (r->header_in->pos == r->header_in->end) {
|
|
692
|
|
693 rv = ngx_http_alloc_large_header_buffer(r, 1);
|
|
694
|
|
695 if (rv == NGX_ERROR) {
|
|
696 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
697 ngx_http_close_connection(c);
|
|
698 return;
|
|
699 }
|
|
700
|
|
701 if (rv == NGX_DECLINED) {
|
54
|
702 ctx = c->log->data;
|
|
703 ctx->request = r;
|
|
704
|
|
705 r->request_line.len = r->header_in->end - r->request_start;
|
|
706 r->request_line.data = r->request_start;
|
|
707
|
|
708 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
709 "client sent too long URI");
|
|
710 ngx_http_finalize_request(r, NGX_HTTP_REQUEST_URI_TOO_LARGE);
|
0
|
711 return;
|
|
712 }
|
|
713 }
|
|
714 }
|
|
715 }
|
|
716
|
|
717
|
50
|
718 static void
|
|
719 ngx_http_process_request_headers(ngx_event_t *rev)
|
0
|
720 {
|
56
|
721 ssize_t n;
|
|
722 ngx_int_t rc, rv;
|
|
723 ngx_uint_t key;
|
|
724 ngx_str_t header;
|
58
|
725 ngx_table_elt_t *h;
|
56
|
726 ngx_connection_t *c;
|
|
727 ngx_http_header_t *hh;
|
|
728 ngx_http_request_t *r;
|
60
|
729 ngx_http_core_srv_conf_t *cscf;
|
56
|
730 ngx_http_core_main_conf_t *cmcf;
|
0
|
731
|
|
732 c = rev->data;
|
|
733 r = c->data;
|
|
734
|
|
735 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, rev->log, 0,
|
|
736 "http process request header line");
|
|
737
|
|
738 if (rev->timedout) {
|
54
|
739 ngx_log_error(NGX_LOG_INFO, c->log, NGX_ETIMEDOUT, "client timed out");
|
|
740 c->timedout = 1;
|
|
741 ngx_http_close_request(r, NGX_HTTP_REQUEST_TIME_OUT);
|
|
742 ngx_http_close_connection(c);
|
0
|
743 return;
|
|
744 }
|
|
745
|
56
|
746 cmcf = ngx_http_get_module_main_conf(r, ngx_http_core_module);
|
60
|
747 cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
|
56
|
748 hh = (ngx_http_header_t *) cmcf->headers_in_hash.buckets;
|
|
749
|
0
|
750 rc = NGX_AGAIN;
|
|
751
|
|
752 for ( ;; ) {
|
|
753
|
|
754 if (rc == NGX_AGAIN) {
|
|
755
|
|
756 if (r->header_in->pos == r->header_in->end) {
|
|
757
|
|
758 rv = ngx_http_alloc_large_header_buffer(r, 0);
|
|
759
|
|
760 if (rv == NGX_ERROR) {
|
|
761 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
762 ngx_http_close_connection(c);
|
|
763 return;
|
|
764 }
|
|
765
|
|
766 if (rv == NGX_DECLINED) {
|
54
|
767 header.len = r->header_in->end - r->header_name_start;
|
|
768 header.data = r->header_name_start;
|
80
|
769
|
|
770 if (header.len > NGX_MAX_ERROR_STR - 300) {
|
|
771 header.len = NGX_MAX_ERROR_STR - 300;
|
|
772 header.data[header.len++] = '.';
|
|
773 header.data[header.len++] = '.';
|
|
774 header.data[header.len++] = '.';
|
|
775 }
|
|
776
|
54
|
777 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
778 "client sent too long header line: \"%V\"",
|
|
779 &header);
|
|
780 ngx_http_close_request(r, NGX_HTTP_BAD_REQUEST);
|
|
781 ngx_http_close_connection(c);
|
0
|
782 return;
|
|
783 }
|
|
784 }
|
|
785
|
|
786 n = ngx_http_read_request_header(r);
|
|
787
|
|
788 if (n == NGX_AGAIN || n == NGX_ERROR) {
|
|
789 return;
|
|
790 }
|
|
791 }
|
|
792
|
|
793 rc = ngx_http_parse_header_line(r, r->header_in);
|
|
794
|
|
795 if (rc == NGX_OK) {
|
|
796
|
60
|
797 if (r->invalid_header && cscf->ignore_invalid_headers) {
|
52
|
798
|
|
799 /* there was error while a header line parsing */
|
|
800
|
|
801 header.len = r->header_end - r->header_name_start;
|
|
802 header.data = r->header_name_start;
|
|
803
|
54
|
804 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
805 "client sent invalid header line: \"%V\"",
|
52
|
806 &header);
|
|
807 continue;
|
|
808 }
|
|
809
|
0
|
810 /* a header line has been parsed successfully */
|
|
811
|
50
|
812 h = ngx_list_push(&r->headers_in.headers);
|
|
813 if (h == NULL) {
|
0
|
814 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
815 ngx_http_close_connection(c);
|
|
816 return;
|
|
817 }
|
|
818
|
56
|
819 h->hash = r->header_hash;
|
|
820
|
0
|
821 h->key.len = r->header_name_end - r->header_name_start;
|
|
822 h->key.data = r->header_name_start;
|
|
823 h->key.data[h->key.len] = '\0';
|
|
824
|
|
825 h->value.len = r->header_end - r->header_start;
|
|
826 h->value.data = r->header_start;
|
|
827 h->value.data[h->value.len] = '\0';
|
|
828
|
58
|
829 key = h->hash % cmcf->headers_in_hash.hash_size;
|
|
830
|
|
831 if (hh[key].name.len == h->key.len
|
|
832 && ngx_strcasecmp(hh[key].name.data, h->key.data) == 0)
|
0
|
833 {
|
58
|
834 if (hh[key].handler(r, h, hh[key].offset) != NGX_OK) {
|
0
|
835 return;
|
|
836 }
|
|
837 }
|
|
838
|
|
839 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
10
|
840 "http header: \"%V: %V\"",
|
|
841 &h->key, &h->value);
|
0
|
842
|
|
843 continue;
|
54
|
844 }
|
|
845
|
|
846 if (rc == NGX_HTTP_PARSE_HEADER_DONE) {
|
0
|
847
|
|
848 /* a whole header has been parsed successfully */
|
|
849
|
|
850 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
851 "http header done");
|
|
852
|
24
|
853 r->request_length += r->header_in->pos - r->header_in->start;
|
|
854
|
0
|
855 r->http_state = NGX_HTTP_PROCESS_REQUEST_STATE;
|
|
856
|
|
857 rc = ngx_http_process_request_header(r);
|
|
858
|
|
859 if (rc != NGX_OK) {
|
|
860 return;
|
|
861 }
|
|
862
|
|
863 if (rev->timer_set) {
|
|
864 ngx_del_timer(rev);
|
|
865 }
|
|
866
|
|
867 #if (NGX_STAT_STUB)
|
110
|
868 ngx_atomic_fetch_add(ngx_stat_reading, -1);
|
0
|
869 r->stat_reading = 0;
|
110
|
870 ngx_atomic_fetch_add(ngx_stat_writing, 1);
|
0
|
871 r->stat_writing = 1;
|
|
872 #endif
|
|
873
|
58
|
874 rev->handler = ngx_http_request_handler;
|
|
875 c->write->handler = ngx_http_request_handler;
|
|
876 r->read_event_handler = ngx_http_block_read;
|
|
877
|
0
|
878 ngx_http_handler(r);
|
86
|
879
|
0
|
880 return;
|
54
|
881 }
|
|
882
|
|
883 if (rc == NGX_AGAIN) {
|
|
884
|
|
885 /* a header line parsing is still not complete */
|
|
886
|
|
887 continue;
|
0
|
888 }
|
|
889
|
54
|
890 /* rc == NGX_HTTP_PARSE_INVALID_HEADER: "\r" is not followed by "\n" */
|
|
891
|
|
892 header.len = r->header_end - r->header_name_start;
|
|
893 header.data = r->header_name_start;
|
|
894 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
895 "client sent invalid header line: \"%V\\r...\"",
|
|
896 &header);
|
|
897 ngx_http_close_request(r, NGX_HTTP_BAD_REQUEST);
|
|
898 ngx_http_close_connection(c);
|
|
899 return;
|
0
|
900 }
|
|
901 }
|
|
902
|
|
903
|
50
|
904 static ssize_t
|
|
905 ngx_http_read_request_header(ngx_http_request_t *r)
|
0
|
906 {
|
|
907 ssize_t n;
|
|
908 ngx_event_t *rev;
|
|
909 ngx_http_core_srv_conf_t *cscf;
|
|
910
|
|
911 rev = r->connection->read;
|
|
912
|
|
913 n = r->header_in->last - r->header_in->pos;
|
|
914
|
|
915 if (n > 0) {
|
|
916 return n;
|
|
917 }
|
|
918
|
72
|
919 if (rev->ready) {
|
|
920 n = r->connection->recv(r->connection, r->header_in->last,
|
|
921 r->header_in->end - r->header_in->last);
|
|
922 } else {
|
|
923 n = NGX_AGAIN;
|
0
|
924 }
|
|
925
|
|
926 if (n == NGX_AGAIN) {
|
|
927 if (!r->header_timeout_set) {
|
|
928 cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
|
|
929 ngx_add_timer(rev, cscf->client_header_timeout);
|
|
930 r->header_timeout_set = 1;
|
|
931 }
|
|
932
|
|
933 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) {
|
|
934 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
935 ngx_http_close_connection(r->connection);
|
|
936 return NGX_ERROR;
|
|
937 }
|
|
938
|
|
939 return NGX_AGAIN;
|
|
940 }
|
|
941
|
|
942 if (n == 0) {
|
|
943 ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
|
|
944 "client closed prematurely connection");
|
|
945 }
|
|
946
|
|
947 if (n == 0 || n == NGX_ERROR) {
|
|
948 ngx_http_close_request(r, NGX_HTTP_BAD_REQUEST);
|
|
949 ngx_http_close_connection(r->connection);
|
|
950 return NGX_ERROR;
|
|
951 }
|
|
952
|
|
953 r->header_in->last += n;
|
|
954
|
|
955 return n;
|
|
956 }
|
|
957
|
|
958
|
50
|
959 static ngx_int_t
|
|
960 ngx_http_alloc_large_header_buffer(ngx_http_request_t *r,
|
|
961 ngx_uint_t request_line)
|
0
|
962 {
|
|
963 u_char *old, *new;
|
|
964 ngx_buf_t *b;
|
|
965 ngx_http_connection_t *hc;
|
|
966 ngx_http_core_srv_conf_t *cscf;
|
|
967
|
|
968 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
969 "http alloc large header buffer");
|
|
970
|
|
971 if (request_line && r->state == 0) {
|
|
972
|
|
973 /* the client fills up the buffer with "\r\n" */
|
|
974
|
24
|
975 r->request_length += r->header_in->end - r->header_in->start;
|
|
976
|
0
|
977 r->header_in->pos = r->header_in->start;
|
|
978 r->header_in->last = r->header_in->start;
|
|
979
|
|
980 return NGX_OK;
|
|
981 }
|
|
982
|
|
983 old = request_line ? r->request_start : r->header_name_start;
|
|
984
|
|
985 cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
|
|
986
|
|
987 if (r->state != 0
|
|
988 && (size_t) (r->header_in->pos - old)
|
|
989 >= cscf->large_client_header_buffers.size)
|
|
990 {
|
|
991 return NGX_DECLINED;
|
|
992 }
|
|
993
|
|
994 hc = r->http_connection;
|
|
995
|
|
996 if (hc->nfree) {
|
|
997 b = hc->free[--hc->nfree];
|
|
998
|
|
999 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
10
|
1000 "http large header free: %p %uz",
|
0
|
1001 b->pos, b->end - b->last);
|
|
1002
|
|
1003 } else if (hc->nbusy < cscf->large_client_header_buffers.num) {
|
|
1004
|
|
1005 if (hc->busy == NULL) {
|
|
1006 hc->busy = ngx_palloc(r->connection->pool,
|
|
1007 cscf->large_client_header_buffers.num * sizeof(ngx_buf_t *));
|
|
1008 if (hc->busy == NULL) {
|
|
1009 return NGX_ERROR;
|
|
1010 }
|
|
1011 }
|
|
1012
|
|
1013 b = ngx_create_temp_buf(r->connection->pool,
|
|
1014 cscf->large_client_header_buffers.size);
|
|
1015 if (b == NULL) {
|
|
1016 return NGX_ERROR;
|
|
1017 }
|
|
1018
|
|
1019 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
10
|
1020 "http large header alloc: %p %uz",
|
0
|
1021 b->pos, b->end - b->last);
|
|
1022
|
|
1023 } else {
|
|
1024 return NGX_DECLINED;
|
|
1025 }
|
|
1026
|
|
1027 hc->busy[hc->nbusy++] = b;
|
|
1028
|
|
1029 if (r->state == 0) {
|
|
1030 /*
|
|
1031 * r->state == 0 means that a header line was parsed successfully
|
|
1032 * and we do not need to copy incomplete header line and
|
|
1033 * to relocate the parser header pointers
|
|
1034 */
|
|
1035
|
24
|
1036 r->request_length += r->header_in->end - r->header_in->start;
|
|
1037
|
0
|
1038 r->header_in = b;
|
|
1039
|
|
1040 return NGX_OK;
|
|
1041 }
|
|
1042
|
|
1043 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
1044 "http large header copy: %d", r->header_in->pos - old);
|
|
1045
|
24
|
1046 r->request_length += old - r->header_in->start;
|
|
1047
|
0
|
1048 new = b->start;
|
|
1049
|
|
1050 ngx_memcpy(new, old, r->header_in->pos - old);
|
|
1051
|
|
1052 b->pos = new + (r->header_in->pos - old);
|
|
1053 b->last = new + (r->header_in->pos - old);
|
|
1054
|
|
1055 if (request_line) {
|
|
1056 r->request_start = new;
|
|
1057
|
|
1058 if (r->request_end) {
|
|
1059 r->request_end = new + (r->request_end - old);
|
|
1060 }
|
|
1061
|
|
1062 r->method_end = new + (r->method_end - old);
|
|
1063
|
|
1064 r->uri_start = new + (r->uri_start - old);
|
|
1065 r->uri_end = new + (r->uri_end - old);
|
|
1066
|
|
1067 if (r->schema_start) {
|
|
1068 r->schema_start = new + (r->schema_start - old);
|
|
1069 r->schema_end = new + (r->schema_end - old);
|
|
1070 }
|
|
1071
|
|
1072 if (r->host_start) {
|
|
1073 r->host_start = new + (r->host_start - old);
|
|
1074 r->host_end = new + (r->host_end - old);
|
|
1075 }
|
|
1076
|
|
1077 if (r->port_start) {
|
|
1078 r->port_start = new + (r->port_start - old);
|
|
1079 r->port_end = new + (r->port_end - old);
|
|
1080 }
|
|
1081
|
|
1082 if (r->uri_ext) {
|
|
1083 r->uri_ext = new + (r->uri_ext - old);
|
|
1084 }
|
|
1085
|
|
1086 if (r->args_start) {
|
|
1087 r->args_start = new + (r->args_start - old);
|
|
1088 }
|
|
1089
|
|
1090 } else {
|
|
1091 r->header_name_start = new;
|
|
1092 r->header_name_end = new + (r->header_name_end - old);
|
|
1093 r->header_start = new + (r->header_start - old);
|
|
1094 r->header_end = new + (r->header_end - old);
|
|
1095 }
|
|
1096
|
|
1097 r->header_in = b;
|
|
1098
|
|
1099 return NGX_OK;
|
|
1100 }
|
|
1101
|
|
1102
|
50
|
1103 static ngx_int_t
|
58
|
1104 ngx_http_process_header_line(ngx_http_request_t *r, ngx_table_elt_t *h,
|
|
1105 ngx_uint_t offset)
|
|
1106 {
|
|
1107 ngx_table_elt_t **ph;
|
|
1108
|
|
1109 ph = (ngx_table_elt_t **) ((char *) &r->headers_in + offset);
|
|
1110
|
|
1111 if (*ph == NULL) {
|
|
1112 *ph = h;
|
|
1113 }
|
|
1114
|
|
1115 return NGX_OK;
|
|
1116 }
|
|
1117
|
|
1118
|
|
1119 static ngx_int_t
|
72
|
1120 ngx_http_process_unique_header_line(ngx_http_request_t *r, ngx_table_elt_t *h,
|
|
1121 ngx_uint_t offset)
|
|
1122 {
|
|
1123 ngx_table_elt_t **ph;
|
|
1124
|
|
1125 ph = (ngx_table_elt_t **) ((char *) &r->headers_in + offset);
|
|
1126
|
|
1127 if (*ph == NULL) {
|
|
1128 *ph = h;
|
|
1129 return NGX_OK;
|
|
1130 }
|
|
1131
|
|
1132 ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
|
|
1133 "client sent duplicate header line: \"%V: %V\"",
|
|
1134 &h->key, &h->value);
|
|
1135
|
|
1136 ngx_http_finalize_request(r, NGX_HTTP_BAD_REQUEST);
|
|
1137
|
|
1138 return NGX_ERROR;
|
|
1139 }
|
|
1140
|
|
1141
|
|
1142 static ngx_int_t
|
58
|
1143 ngx_http_process_cookie(ngx_http_request_t *r, ngx_table_elt_t *h,
|
|
1144 ngx_uint_t offset)
|
|
1145 {
|
|
1146 ngx_table_elt_t **cookie;
|
|
1147
|
|
1148 cookie = ngx_array_push(&r->headers_in.cookies);
|
72
|
1149 if (cookie) {
|
|
1150 *cookie = h;
|
|
1151 return NGX_OK;
|
58
|
1152 }
|
|
1153
|
72
|
1154 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
1155 ngx_http_close_connection(r->connection);
|
|
1156
|
|
1157 return NGX_ERROR;
|
58
|
1158 }
|
|
1159
|
|
1160
|
|
1161 static ngx_int_t
|
50
|
1162 ngx_http_process_request_header(ngx_http_request_t *r)
|
0
|
1163 {
|
54
|
1164 size_t len;
|
|
1165 u_char *ua, *user_agent, ch;
|
|
1166 ngx_http_core_srv_conf_t *cscf;
|
0
|
1167
|
|
1168 if (r->headers_in.host) {
|
|
1169 for (len = 0; len < r->headers_in.host->value.len; len++) {
|
26
|
1170 ch = r->headers_in.host->value.data[len];
|
|
1171
|
|
1172 if (ch == ':') {
|
0
|
1173 break;
|
|
1174 }
|
26
|
1175
|
|
1176 r->headers_in.host->value.data[len] = ngx_tolower(ch);
|
0
|
1177 }
|
54
|
1178
|
58
|
1179 if (r->headers_in.host->value.data[len - 1] == '.') {
|
|
1180 len--;
|
|
1181 }
|
|
1182
|
0
|
1183 r->headers_in.host_name_len = len;
|
|
1184
|
26
|
1185 if (ngx_http_find_virtual_server(r) != NGX_OK) {
|
54
|
1186 ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
|
|
1187 "client sent invalid \"Host\" header");
|
|
1188
|
|
1189 cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
|
|
1190
|
|
1191 if (cscf->restrict_host_names == NGX_HTTP_RESTRICT_HOST_CLOSE) {
|
|
1192 ngx_http_close_request(r, NGX_HTTP_BAD_REQUEST);
|
|
1193 ngx_http_close_connection(r->connection);
|
|
1194 return NGX_ERROR;
|
|
1195 }
|
|
1196
|
|
1197 ngx_http_finalize_request(r, NGX_HTTP_INVALID_HOST);
|
|
1198 return NGX_ERROR;
|
0
|
1199 }
|
|
1200
|
|
1201 } else {
|
|
1202 if (r->http_version > NGX_HTTP_VERSION_10) {
|
54
|
1203 ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
|
|
1204 "client sent HTTP/1.1 request without \"Host\" header");
|
|
1205 ngx_http_finalize_request(r, NGX_HTTP_BAD_REQUEST);
|
|
1206 return NGX_ERROR;
|
0
|
1207 }
|
54
|
1208
|
0
|
1209 r->headers_in.host_name_len = 0;
|
|
1210 }
|
|
1211
|
|
1212 if (r->headers_in.content_length) {
|
|
1213 r->headers_in.content_length_n =
|
50
|
1214 ngx_atosz(r->headers_in.content_length->value.data,
|
0
|
1215 r->headers_in.content_length->value.len);
|
|
1216
|
|
1217 if (r->headers_in.content_length_n == NGX_ERROR) {
|
54
|
1218 ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
|
|
1219 "client sent invalid \"Content-Length\" header");
|
|
1220 ngx_http_finalize_request(r, NGX_HTTP_BAD_REQUEST);
|
|
1221 return NGX_ERROR;
|
0
|
1222 }
|
|
1223 }
|
|
1224
|
32
|
1225 if (r->method == NGX_HTTP_POST && r->headers_in.content_length_n == -1) {
|
54
|
1226 ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
|
|
1227 "client sent POST method without \"Content-Length\" header");
|
|
1228 ngx_http_finalize_request(r, NGX_HTTP_BAD_REQUEST);
|
|
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
|
50
|
1308 static ngx_int_t
|
|
1309 ngx_http_find_virtual_server(ngx_http_request_t *r)
|
26
|
1310 {
|
|
1311 ngx_int_t rc;
|
58
|
1312 ngx_uint_t i, n, key;
|
26
|
1313 ngx_http_server_name_t *name;
|
56
|
1314 ngx_http_core_loc_conf_t *clcf;
|
26
|
1315 ngx_http_core_srv_conf_t *cscf;
|
56
|
1316 ngx_http_core_main_conf_t *cmcf;
|
26
|
1317
|
|
1318 if (r->virtual_names->hash) {
|
|
1319 cmcf = ngx_http_get_module_main_conf(r, ngx_http_core_module);
|
|
1320
|
|
1321 ngx_http_server_names_hash_key(key,
|
|
1322 r->headers_in.host->value.data,
|
|
1323 r->headers_in.host_name_len,
|
|
1324 cmcf->server_names_hash);
|
|
1325
|
|
1326 name = r->virtual_names->hash[key].elts;
|
|
1327 n = r->virtual_names->hash[key].nelts;
|
|
1328
|
|
1329 } else {
|
|
1330 name = r->virtual_names->names.elts;
|
|
1331 n = r->virtual_names->names.nelts;
|
|
1332 }
|
|
1333
|
|
1334 for (i = 0; i < n; i++) {
|
|
1335
|
|
1336 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
1337 "server name: %V", &name[i].name);
|
|
1338
|
|
1339 if (r->headers_in.host_name_len != name[i].name.len) {
|
|
1340 continue;
|
|
1341 }
|
|
1342
|
|
1343 rc = ngx_strncmp(r->headers_in.host->value.data,
|
|
1344 name[i].name.data, name[i].name.len);
|
|
1345
|
|
1346 if (rc == 0) {
|
|
1347 r->server_name = name[i].name;
|
58
|
1348 goto found;
|
26
|
1349 }
|
|
1350
|
|
1351 if (rc < 0) {
|
|
1352 /* the server names are lexicographically sorted */
|
|
1353 break;
|
|
1354 }
|
|
1355 }
|
|
1356
|
58
|
1357 if (r->virtual_names->wildcards.nelts) {
|
26
|
1358
|
|
1359 name = r->virtual_names->wildcards.elts;
|
|
1360 for (i = 0; i < r->virtual_names->wildcards.nelts; i++) {
|
|
1361
|
|
1362 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
1363 "server name: %V", &name[i].name);
|
|
1364
|
|
1365 if (r->headers_in.host_name_len <= name[i].name.len) {
|
|
1366 continue;
|
|
1367 }
|
|
1368
|
|
1369 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
1370 "server name: %s",
|
|
1371 r->headers_in.host->value.data
|
|
1372 + (r->headers_in.host_name_len - name[i].name.len));
|
|
1373
|
|
1374 if (ngx_strncmp(r->headers_in.host->value.data
|
|
1375 + (r->headers_in.host_name_len - name[i].name.len),
|
|
1376 name[i].name.data, name[i].name.len) == 0)
|
|
1377 {
|
|
1378 r->server_name.len = r->headers_in.host_name_len;
|
|
1379 r->server_name.data = r->headers_in.host->value.data;
|
|
1380
|
58
|
1381 goto found;
|
26
|
1382 }
|
|
1383 }
|
|
1384 }
|
|
1385
|
58
|
1386 cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
|
|
1387
|
|
1388 if (cscf->restrict_host_names == NGX_HTTP_RESTRICT_HOST_OFF) {
|
26
|
1389 return NGX_OK;
|
|
1390 }
|
|
1391
|
58
|
1392 return NGX_ERROR;
|
|
1393
|
|
1394 found:
|
|
1395
|
|
1396 r->srv_conf = name[i].core_srv_conf->ctx->srv_conf;
|
|
1397 r->loc_conf = name[i].core_srv_conf->ctx->loc_conf;
|
|
1398
|
|
1399 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
1400 r->connection->log->file = clcf->err_log->file;
|
|
1401
|
|
1402 if (!(r->connection->log->log_level & NGX_LOG_DEBUG_CONNECTION)) {
|
|
1403 r->connection->log->log_level = clcf->err_log->log_level;
|
26
|
1404 }
|
|
1405
|
|
1406 return NGX_OK;
|
|
1407 }
|
|
1408
|
|
1409
|
58
|
1410 static void
|
|
1411 ngx_http_request_handler(ngx_event_t *ev)
|
|
1412 {
|
|
1413 ngx_connection_t *c;
|
|
1414 ngx_http_request_t *r;
|
|
1415
|
|
1416 c = ev->data;
|
|
1417 r = c->data;
|
|
1418
|
|
1419 if (ev->write) {
|
|
1420 r->write_event_handler(r);
|
|
1421
|
|
1422 } else {
|
|
1423 r->read_event_handler(r);
|
|
1424 }
|
|
1425 }
|
|
1426
|
|
1427
|
50
|
1428 void
|
58
|
1429 ngx_http_finalize_request(ngx_http_request_t *r, ngx_int_t rc)
|
0
|
1430 {
|
58
|
1431 ngx_http_request_t *pr;
|
0
|
1432 ngx_http_core_loc_conf_t *clcf;
|
|
1433
|
58
|
1434 if (rc == NGX_DONE) {
|
|
1435 /* r may be already destroyed when rc == NGX_DONE */
|
|
1436 return;
|
|
1437 }
|
|
1438
|
|
1439 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
1440 "http finalize request: %d, \"%V\"", rc, &r->uri);
|
|
1441
|
60
|
1442 if (r->parent
|
|
1443 && (rc >= NGX_HTTP_SPECIAL_RESPONSE || rc == NGX_HTTP_NO_CONTENT))
|
|
1444 {
|
58
|
1445 ngx_http_finalize_request(r, ngx_http_special_response_handler(r, rc));
|
0
|
1446 return;
|
|
1447 }
|
|
1448
|
58
|
1449 if (r->parent || rc == NGX_AGAIN) {
|
74
|
1450 if (ngx_http_set_write_handler(r) != NGX_OK) {
|
|
1451 return;
|
|
1452 }
|
58
|
1453 }
|
|
1454
|
|
1455 r->done = 1;
|
|
1456
|
|
1457 if (r != r->connection->data) {
|
76
|
1458 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
1459 "http finalize non-active request: \"%V\"", &r->uri);
|
58
|
1460 return;
|
|
1461 }
|
|
1462
|
|
1463 if (r->parent) {
|
|
1464
|
|
1465 pr = r->parent;
|
|
1466
|
76
|
1467 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
1468 "http parent request: \"%V\"", &pr->uri);
|
|
1469
|
58
|
1470 if (rc != NGX_AGAIN) {
|
|
1471 pr->connection->data = pr;
|
|
1472 }
|
|
1473
|
|
1474 if (pr->postponed) {
|
|
1475
|
76
|
1476 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
1477 "http request: \"%V\" has postponed", &pr->uri);
|
|
1478
|
58
|
1479 if (rc != NGX_AGAIN && pr->postponed->request == r) {
|
|
1480 pr->postponed = pr->postponed->next;
|
|
1481
|
|
1482 if (pr->postponed == NULL) {
|
|
1483 return;
|
|
1484 }
|
|
1485 }
|
|
1486
|
76
|
1487 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
1488 "http request: \"%V\" still has postponed",
|
|
1489 &pr->uri);
|
|
1490
|
58
|
1491 if (pr->done) {
|
|
1492 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
76
|
1493 "http wake parent request: \"%V\"", &pr->uri);
|
58
|
1494
|
|
1495 pr->write_event_handler(pr);
|
|
1496 }
|
|
1497 }
|
|
1498
|
|
1499 return;
|
|
1500 }
|
0
|
1501
|
60
|
1502 if (rc >= NGX_HTTP_SPECIAL_RESPONSE || rc == NGX_HTTP_NO_CONTENT) {
|
0
|
1503
|
|
1504 if (r->connection->read->timer_set) {
|
|
1505 ngx_del_timer(r->connection->read);
|
|
1506 }
|
|
1507
|
|
1508 if (r->connection->write->timer_set) {
|
|
1509 ngx_del_timer(r->connection->write);
|
|
1510 }
|
|
1511
|
76
|
1512 if (r->connection->closed) {
|
0
|
1513 ngx_http_close_request(r, 0);
|
|
1514 ngx_http_close_connection(r->connection);
|
|
1515 return;
|
|
1516 }
|
|
1517
|
|
1518 ngx_http_finalize_request(r, ngx_http_special_response_handler(r, rc));
|
|
1519
|
|
1520 return;
|
76
|
1521 }
|
|
1522
|
|
1523 if (rc == NGX_ERROR || r->connection->closed) {
|
0
|
1524 ngx_http_close_request(r, 0);
|
|
1525 ngx_http_close_connection(r->connection);
|
|
1526 return;
|
76
|
1527 }
|
|
1528
|
|
1529 if (rc == NGX_AGAIN || r->out) {
|
74
|
1530 (void) ngx_http_set_write_handler(r);
|
0
|
1531 return;
|
|
1532 }
|
|
1533
|
|
1534 if (r->connection->read->timer_set) {
|
|
1535 ngx_del_timer(r->connection->read);
|
|
1536 }
|
|
1537
|
|
1538 if (r->connection->write->timer_set) {
|
|
1539 r->connection->write->delayed = 0;
|
|
1540 ngx_del_timer(r->connection->write);
|
|
1541 }
|
|
1542
|
|
1543 if (r->connection->read->pending_eof) {
|
22
|
1544 #if (NGX_HAVE_KQUEUE)
|
0
|
1545 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log,
|
|
1546 r->connection->read->kq_errno,
|
|
1547 "kevent() reported about an closed connection");
|
|
1548 #endif
|
|
1549 ngx_http_close_request(r, 0);
|
|
1550 ngx_http_close_connection(r->connection);
|
|
1551 return;
|
|
1552 }
|
|
1553
|
|
1554 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
1555
|
|
1556 if (!ngx_terminate
|
|
1557 && !ngx_exiting
|
|
1558 && r->keepalive != 0
|
|
1559 && clcf->keepalive_timeout > 0)
|
|
1560 {
|
|
1561 ngx_http_set_keepalive(r);
|
|
1562 return;
|
|
1563
|
|
1564 } else if (r->lingering_close && clcf->lingering_timeout > 0) {
|
|
1565 ngx_http_set_lingering_close(r);
|
|
1566 return;
|
|
1567 }
|
|
1568
|
|
1569 ngx_http_close_request(r, 0);
|
|
1570 ngx_http_close_connection(r->connection);
|
|
1571 }
|
|
1572
|
|
1573
|
74
|
1574 static ngx_int_t
|
50
|
1575 ngx_http_set_write_handler(ngx_http_request_t *r)
|
0
|
1576 {
|
|
1577 ngx_event_t *wev;
|
|
1578 ngx_http_core_loc_conf_t *clcf;
|
|
1579
|
58
|
1580 r->http_state = NGX_HTTP_WRITING_REQUEST_STATE;
|
|
1581
|
74
|
1582 r->write_event_handler = ngx_http_writer;
|
|
1583
|
76
|
1584 if (r->connection->closed) {
|
|
1585 return NGX_OK;
|
|
1586 }
|
|
1587
|
0
|
1588 wev = r->connection->write;
|
|
1589
|
|
1590 if (wev->ready && wev->delayed) {
|
74
|
1591 return NGX_OK;
|
0
|
1592 }
|
|
1593
|
58
|
1594 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
0
|
1595 if (!wev->delayed) {
|
|
1596 ngx_add_timer(wev, clcf->send_timeout);
|
|
1597 }
|
|
1598
|
2
|
1599 if (ngx_handle_write_event(wev, clcf->send_lowat) == NGX_ERROR) {
|
0
|
1600 ngx_http_close_request(r, 0);
|
|
1601 ngx_http_close_connection(r->connection);
|
74
|
1602 return NGX_ERROR;
|
0
|
1603 }
|
74
|
1604
|
|
1605 return NGX_OK;
|
0
|
1606 }
|
|
1607
|
|
1608
|
58
|
1609 static void
|
|
1610 ngx_http_writer(ngx_http_request_t *r)
|
0
|
1611 {
|
|
1612 int rc;
|
58
|
1613 ngx_event_t *wev;
|
0
|
1614 ngx_connection_t *c;
|
|
1615 ngx_http_core_loc_conf_t *clcf;
|
|
1616
|
58
|
1617 c = r->connection;
|
|
1618 wev = c->write;
|
|
1619
|
|
1620 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, wev->log, 0,
|
|
1621 "http writer handler: \"%V\"", &r->uri);
|
0
|
1622
|
|
1623 if (wev->timedout) {
|
|
1624 if (!wev->delayed) {
|
54
|
1625 ngx_log_error(NGX_LOG_INFO, c->log, NGX_ETIMEDOUT,
|
|
1626 "client timed out");
|
|
1627 c->timedout = 1;
|
116
|
1628
|
|
1629 #if 0
|
|
1630 ngx_http_close_request(r->main, NGX_HTTP_REQUEST_TIME_OUT);
|
54
|
1631 ngx_http_close_connection(c);
|
116
|
1632 #endif
|
|
1633
|
|
1634 c->closed = 1;
|
|
1635 ngx_http_finalize_request(r, 0);
|
|
1636
|
0
|
1637 return;
|
|
1638 }
|
|
1639
|
|
1640 wev->timedout = 0;
|
|
1641 wev->delayed = 0;
|
|
1642
|
|
1643 if (!wev->ready) {
|
102
|
1644 clcf = ngx_http_get_module_loc_conf(r->main, ngx_http_core_module);
|
0
|
1645 ngx_add_timer(wev, clcf->send_timeout);
|
|
1646
|
2
|
1647 if (ngx_handle_write_event(wev, clcf->send_lowat) == NGX_ERROR) {
|
116
|
1648 ngx_http_close_request(r->main, 0);
|
0
|
1649 ngx_http_close_connection(r->connection);
|
|
1650 }
|
|
1651
|
|
1652 return;
|
|
1653 }
|
|
1654
|
|
1655 } else {
|
|
1656 if (wev->delayed) {
|
|
1657 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, wev->log, 0,
|
|
1658 "http writer delayed");
|
|
1659
|
102
|
1660 clcf = ngx_http_get_module_loc_conf(r->main, ngx_http_core_module);
|
2
|
1661
|
|
1662 if (ngx_handle_write_event(wev, clcf->send_lowat) == NGX_ERROR) {
|
116
|
1663 ngx_http_close_request(r->main, 0);
|
0
|
1664 ngx_http_close_connection(r->connection);
|
|
1665 }
|
|
1666
|
|
1667 return;
|
|
1668 }
|
|
1669 }
|
|
1670
|
58
|
1671 if (r->postponed) {
|
|
1672 rc = ngx_http_postponed_handler(r);
|
|
1673
|
|
1674 if (rc == NGX_DONE) {
|
|
1675 /* r may be already destroyed when rc == NGX_DONE */
|
|
1676 return;
|
|
1677 }
|
|
1678
|
|
1679 } else {
|
|
1680 rc = ngx_http_output_filter(r, NULL);
|
|
1681
|
|
1682 }
|
|
1683
|
|
1684 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
1685 "http writer output filter: %d, \"%V\"", rc, &r->uri);
|
0
|
1686
|
|
1687 if (rc == NGX_AGAIN) {
|
102
|
1688 clcf = ngx_http_get_module_loc_conf(r->main, ngx_http_core_module);
|
0
|
1689 if (!wev->ready && !wev->delayed) {
|
|
1690 ngx_add_timer(wev, clcf->send_timeout);
|
|
1691 }
|
|
1692
|
2
|
1693 if (ngx_handle_write_event(wev, clcf->send_lowat) == NGX_ERROR) {
|
116
|
1694 ngx_http_close_request(r->main, 0);
|
0
|
1695 ngx_http_close_connection(r->connection);
|
|
1696 }
|
|
1697
|
|
1698 return;
|
|
1699 }
|
|
1700
|
58
|
1701 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, wev->log, 0,
|
|
1702 "http writer done: \"%V\"", &r->uri);
|
0
|
1703
|
|
1704 ngx_http_finalize_request(r, rc);
|
|
1705 }
|
|
1706
|
|
1707
|
58
|
1708 static ngx_int_t
|
|
1709 ngx_http_postponed_handler(ngx_http_request_t *r)
|
|
1710 {
|
|
1711 ngx_int_t rc;
|
|
1712 ngx_http_postponed_request_t *pr;
|
|
1713
|
|
1714 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
1715 "http postpone handler \"%V\"", &r->uri);
|
|
1716
|
|
1717 pr = r->postponed;
|
|
1718
|
|
1719 if (pr->request == NULL) {
|
|
1720 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
1721 "http postponed data \"%V\" %p", &r->uri, pr->out);
|
|
1722
|
|
1723 rc = ngx_http_output_filter(r, NULL);
|
|
1724
|
|
1725 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
76
|
1726 "http postponed output filter: %d", rc);
|
58
|
1727
|
76
|
1728 /*
|
|
1729 * we treat NGX_ERROR as NGX_OK, because we need to complete
|
|
1730 * all postponed requests
|
|
1731 */
|
58
|
1732
|
|
1733 pr = r->postponed;
|
|
1734
|
|
1735 if (pr == NULL) {
|
92
|
1736
|
|
1737 if (rc == NGX_AGAIN) {
|
|
1738 return NGX_AGAIN;
|
|
1739 }
|
|
1740
|
58
|
1741 return NGX_OK;
|
|
1742 }
|
|
1743 }
|
|
1744
|
|
1745 r = pr->request;
|
|
1746 r->connection->data = r;
|
|
1747
|
|
1748 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
76
|
1749 "http wake child request \"%V\"", &r->uri);
|
58
|
1750
|
|
1751 r->write_event_handler(r);
|
|
1752
|
|
1753 return NGX_DONE;
|
|
1754 }
|
|
1755
|
|
1756
|
50
|
1757 static void
|
58
|
1758 ngx_http_block_read(ngx_http_request_t *r)
|
0
|
1759 {
|
58
|
1760 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
1761 "http read blocked");
|
0
|
1762
|
|
1763 /* aio does not call this handler */
|
|
1764
|
58
|
1765 if ((ngx_event_flags & NGX_USE_LEVEL_EVENT)
|
|
1766 && r->connection->read->active)
|
|
1767 {
|
|
1768 if (ngx_del_event(r->connection->read, NGX_READ_EVENT, 0)
|
|
1769 == NGX_ERROR)
|
|
1770 {
|
0
|
1771 ngx_http_close_request(r, 0);
|
58
|
1772 ngx_http_close_connection(r->connection);
|
0
|
1773 }
|
|
1774 }
|
|
1775 }
|
|
1776
|
|
1777
|
50
|
1778 ngx_int_t
|
|
1779 ngx_http_discard_body(ngx_http_request_t *r)
|
0
|
1780 {
|
|
1781 ssize_t size;
|
|
1782 ngx_event_t *rev;
|
|
1783
|
102
|
1784 if (r->main != r) {
|
70
|
1785 return NGX_OK;
|
|
1786 }
|
|
1787
|
0
|
1788 rev = r->connection->read;
|
|
1789
|
|
1790 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, rev->log, 0, "http set discard body");
|
|
1791
|
|
1792 if (rev->timer_set) {
|
|
1793 ngx_del_timer(rev);
|
|
1794 }
|
|
1795
|
|
1796 if (r->headers_in.content_length_n <= 0) {
|
|
1797 return NGX_OK;
|
|
1798 }
|
|
1799
|
86
|
1800 r->discard_body = 1;
|
|
1801
|
0
|
1802 size = r->header_in->last - r->header_in->pos;
|
|
1803
|
|
1804 if (size) {
|
|
1805 if (r->headers_in.content_length_n > size) {
|
|
1806 r->headers_in.content_length_n -= size;
|
|
1807
|
|
1808 } else {
|
|
1809 r->header_in->pos += r->headers_in.content_length_n;
|
|
1810 r->headers_in.content_length_n = 0;
|
|
1811 return NGX_OK;
|
|
1812 }
|
|
1813 }
|
|
1814
|
58
|
1815 r->read_event_handler = ngx_http_read_discarded_body_handler;
|
|
1816
|
|
1817 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) {
|
0
|
1818 return NGX_HTTP_INTERNAL_SERVER_ERROR;
|
|
1819 }
|
|
1820
|
|
1821 return ngx_http_read_discarded_body(r);
|
|
1822 }
|
|
1823
|
|
1824
|
50
|
1825 static void
|
58
|
1826 ngx_http_read_discarded_body_handler(ngx_http_request_t *r)
|
0
|
1827 {
|
58
|
1828 ngx_int_t rc;
|
0
|
1829
|
|
1830 rc = ngx_http_read_discarded_body(r);
|
|
1831
|
|
1832 if (rc == NGX_AGAIN) {
|
58
|
1833 if (ngx_handle_read_event(r->connection->read, 0) == NGX_ERROR) {
|
0
|
1834 ngx_http_close_request(r, rc);
|
58
|
1835 ngx_http_close_connection(r->connection);
|
0
|
1836 return;
|
|
1837 }
|
|
1838 }
|
|
1839
|
|
1840 if (rc != NGX_OK) {
|
|
1841 ngx_http_close_request(r, rc);
|
58
|
1842 ngx_http_close_connection(r->connection);
|
0
|
1843 }
|
|
1844 }
|
|
1845
|
|
1846
|
50
|
1847 static ngx_int_t
|
|
1848 ngx_http_read_discarded_body(ngx_http_request_t *r)
|
0
|
1849 {
|
|
1850 ssize_t size, n;
|
|
1851 u_char buffer[NGX_HTTP_DISCARD_BUFFER_SIZE];
|
|
1852
|
|
1853 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
1854 "http read discarded body");
|
|
1855
|
|
1856 if (r->headers_in.content_length_n == 0) {
|
|
1857 return NGX_OK;
|
|
1858 }
|
|
1859
|
|
1860
|
|
1861 size = r->headers_in.content_length_n;
|
|
1862
|
|
1863 if (size > NGX_HTTP_DISCARD_BUFFER_SIZE) {
|
|
1864 size = NGX_HTTP_DISCARD_BUFFER_SIZE;
|
|
1865 }
|
|
1866
|
|
1867 n = r->connection->recv(r->connection, buffer, size);
|
|
1868
|
|
1869 if (n == NGX_ERROR) {
|
|
1870
|
76
|
1871 r->connection->closed = 1;
|
0
|
1872
|
|
1873 /*
|
|
1874 * if a client request body is discarded then we already set
|
|
1875 * some HTTP response code for client and we can ignore the error
|
|
1876 */
|
|
1877
|
|
1878 return NGX_OK;
|
|
1879 }
|
|
1880
|
|
1881 if (n == NGX_AGAIN) {
|
|
1882 return NGX_AGAIN;
|
|
1883 }
|
|
1884
|
|
1885 r->headers_in.content_length_n -= n;
|
|
1886
|
|
1887 return NGX_OK;
|
|
1888 }
|
|
1889
|
|
1890
|
50
|
1891 static void
|
|
1892 ngx_http_set_keepalive(ngx_http_request_t *r)
|
0
|
1893 {
|
2
|
1894 int tcp_nodelay;
|
0
|
1895 ngx_int_t i;
|
|
1896 ngx_buf_t *b, *f;
|
|
1897 ngx_event_t *rev, *wev;
|
|
1898 ngx_connection_t *c;
|
|
1899 ngx_http_connection_t *hc;
|
|
1900 ngx_http_core_srv_conf_t *cscf;
|
|
1901 ngx_http_core_loc_conf_t *clcf;
|
|
1902
|
|
1903 c = r->connection;
|
|
1904 rev = c->read;
|
|
1905
|
|
1906 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "set http keepalive handler");
|
|
1907
|
32
|
1908 c->log->action = "closing request";
|
0
|
1909
|
|
1910 hc = r->http_connection;
|
|
1911 b = r->header_in;
|
|
1912
|
|
1913 if (b->pos < b->last) {
|
|
1914
|
|
1915 /* the pipelined request */
|
|
1916
|
|
1917 if (b != c->buffer) {
|
|
1918
|
4
|
1919 /*
|
|
1920 * If the large header buffers were allocated while the previous
|
|
1921 * request processing then we do not use c->buffer for
|
|
1922 * the pipelined request (see ngx_http_init_request()).
|
|
1923 *
|
|
1924 * Now we would move the large header buffers to the free list.
|
|
1925 */
|
0
|
1926
|
|
1927 cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
|
|
1928
|
|
1929 if (hc->free == NULL) {
|
|
1930 hc->free = ngx_palloc(c->pool,
|
|
1931 cscf->large_client_header_buffers.num * sizeof(ngx_buf_t *));
|
|
1932
|
|
1933 if (hc->free == NULL) {
|
26
|
1934 ngx_http_close_request(r, 0);
|
0
|
1935 ngx_http_close_connection(c);
|
|
1936 return;
|
|
1937 }
|
|
1938 }
|
|
1939
|
|
1940 for (i = 0; i < hc->nbusy - 1; i++) {
|
|
1941 f = hc->busy[i];
|
|
1942 hc->free[hc->nfree++] = f;
|
|
1943 f->pos = f->start;
|
|
1944 f->last = f->start;
|
|
1945 }
|
|
1946
|
|
1947 hc->busy[0] = b;
|
|
1948 hc->nbusy = 1;
|
|
1949 }
|
|
1950 }
|
|
1951
|
26
|
1952 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
1953
|
0
|
1954 ngx_http_close_request(r, 0);
|
|
1955 c->data = hc;
|
|
1956
|
|
1957 ngx_add_timer(rev, clcf->keepalive_timeout);
|
|
1958
|
58
|
1959 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) {
|
0
|
1960 ngx_http_close_connection(c);
|
|
1961 return;
|
|
1962 }
|
|
1963
|
|
1964 wev = c->write;
|
58
|
1965 wev->handler = ngx_http_empty_handler;
|
0
|
1966
|
|
1967 if (b->pos < b->last) {
|
|
1968
|
|
1969 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "pipelined request");
|
|
1970
|
116
|
1971 #if (NGX_STAT_STUB)
|
|
1972 ngx_atomic_fetch_add(ngx_stat_reading, 1);
|
|
1973 #endif
|
|
1974
|
0
|
1975 hc->pipeline = 1;
|
32
|
1976 c->log->action = "reading client pipelined request line";
|
116
|
1977
|
0
|
1978 ngx_http_init_request(rev);
|
|
1979 return;
|
|
1980 }
|
|
1981
|
|
1982 hc->pipeline = 0;
|
|
1983
|
4
|
1984 /*
|
|
1985 * To keep a memory footprint as small as possible for an idle
|
|
1986 * keepalive connection we try to free the ngx_http_request_t and
|
|
1987 * c->buffer's memory if they were allocated outside the c->pool.
|
|
1988 * The large header buffers are always allocated outside the c->pool and
|
|
1989 * are freed too.
|
|
1990 */
|
|
1991
|
0
|
1992 if (ngx_pfree(c->pool, r) == NGX_OK) {
|
|
1993 hc->request = NULL;
|
|
1994 }
|
|
1995
|
|
1996 b = c->buffer;
|
|
1997
|
|
1998 if (ngx_pfree(c->pool, b->start) == NGX_OK) {
|
4
|
1999
|
|
2000 /*
|
|
2001 * the special note for ngx_http_keepalive_handler() that
|
|
2002 * c->buffer's memory was freed
|
|
2003 */
|
|
2004
|
0
|
2005 b->pos = NULL;
|
|
2006
|
|
2007 } else {
|
|
2008 b->pos = b->start;
|
|
2009 b->last = b->start;
|
|
2010 }
|
|
2011
|
10
|
2012 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, c->log, 0, "hc free: %p %d",
|
0
|
2013 hc->free, hc->nfree);
|
|
2014
|
|
2015 if (hc->free) {
|
|
2016 for (i = 0; i < hc->nfree; i++) {
|
|
2017 ngx_pfree(c->pool, hc->free[i]);
|
|
2018 hc->free[i] = NULL;
|
|
2019 }
|
|
2020
|
|
2021 hc->nfree = 0;
|
|
2022 }
|
|
2023
|
10
|
2024 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, c->log, 0, "hc busy: %p %d",
|
0
|
2025 hc->busy, hc->nbusy);
|
|
2026
|
|
2027 if (hc->busy) {
|
|
2028 for (i = 0; i < hc->nbusy; i++) {
|
|
2029 ngx_pfree(c->pool, hc->busy[i]);
|
|
2030 hc->busy[i] = NULL;
|
|
2031 }
|
|
2032
|
|
2033 hc->nbusy = 0;
|
|
2034 }
|
|
2035
|
58
|
2036 rev->handler = ngx_http_keepalive_handler;
|
0
|
2037
|
|
2038 if (wev->active) {
|
4
|
2039 if (ngx_event_flags & NGX_USE_KQUEUE_EVENT) {
|
0
|
2040 if (ngx_del_event(wev, NGX_WRITE_EVENT, NGX_DISABLE_EVENT)
|
|
2041 == NGX_ERROR)
|
|
2042 {
|
|
2043 ngx_http_close_connection(c);
|
|
2044 return;
|
|
2045 }
|
|
2046
|
|
2047 } else if (ngx_event_flags & NGX_USE_LEVEL_EVENT) {
|
|
2048 if (ngx_del_event(wev, NGX_WRITE_EVENT, 0) == NGX_ERROR) {
|
|
2049 ngx_http_close_connection(c);
|
|
2050 return;
|
|
2051 }
|
|
2052 }
|
|
2053 }
|
|
2054
|
32
|
2055 c->log->action = "keepalive";
|
0
|
2056
|
|
2057 if (c->tcp_nopush == NGX_TCP_NOPUSH_SET) {
|
50
|
2058 if (ngx_tcp_push(c->fd) == -1) {
|
0
|
2059 ngx_connection_error(c, ngx_socket_errno, ngx_tcp_push_n " failed");
|
|
2060 ngx_http_close_connection(c);
|
|
2061 return;
|
|
2062 }
|
2
|
2063
|
0
|
2064 c->tcp_nopush = NGX_TCP_NOPUSH_UNSET;
|
22
|
2065 tcp_nodelay = ngx_tcp_nodelay_and_tcp_nopush ? 1 : 0;
|
2
|
2066
|
|
2067 } else {
|
22
|
2068 tcp_nodelay = 1;
|
|
2069 }
|
|
2070
|
32
|
2071 if (tcp_nodelay
|
|
2072 && clcf->tcp_nodelay
|
|
2073 && c->tcp_nodelay == NGX_TCP_NODELAY_UNSET)
|
|
2074 {
|
22
|
2075 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "tcp_nodelay");
|
|
2076
|
|
2077 if (setsockopt(c->fd, IPPROTO_TCP, TCP_NODELAY,
|
|
2078 (const void *) &tcp_nodelay, sizeof(int)) == -1)
|
|
2079 {
|
|
2080 ngx_connection_error(c, ngx_socket_errno,
|
|
2081 "setsockopt(TCP_NODELAY) failed");
|
|
2082 ngx_http_close_connection(c);
|
|
2083 return;
|
2
|
2084 }
|
22
|
2085
|
32
|
2086 c->tcp_nodelay = NGX_TCP_NODELAY_SET;
|
0
|
2087 }
|
|
2088
|
|
2089 #if 0
|
4
|
2090 /* if ngx_http_request_t was freed then we need some other place */
|
0
|
2091 r->http_state = NGX_HTTP_KEEPALIVE_STATE;
|
|
2092 #endif
|
|
2093
|
|
2094 if (rev->ready) {
|
|
2095 ngx_http_keepalive_handler(rev);
|
|
2096 }
|
|
2097 }
|
|
2098
|
|
2099
|
50
|
2100 static void
|
|
2101 ngx_http_keepalive_handler(ngx_event_t *rev)
|
0
|
2102 {
|
50
|
2103 size_t size;
|
|
2104 ssize_t n;
|
|
2105 ngx_buf_t *b;
|
|
2106 ngx_connection_t *c;
|
0
|
2107
|
|
2108 c = rev->data;
|
|
2109
|
|
2110 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "http keepalive handler");
|
|
2111
|
|
2112 if (rev->timedout) {
|
|
2113 ngx_http_close_connection(c);
|
|
2114 return;
|
|
2115 }
|
|
2116
|
18
|
2117 #if (NGX_HAVE_KQUEUE)
|
0
|
2118
|
4
|
2119 if (ngx_event_flags & NGX_USE_KQUEUE_EVENT) {
|
0
|
2120 if (rev->pending_eof) {
|
32
|
2121 c->log->handler = NULL;
|
0
|
2122 ngx_log_error(NGX_LOG_INFO, c->log, rev->kq_errno,
|
10
|
2123 "kevent() reported that client %V closed "
|
32
|
2124 "keepalive connection", &c->addr_text);
|
22
|
2125 #if (NGX_HTTP_SSL)
|
|
2126 if (c->ssl) {
|
96
|
2127 c->ssl->no_send_shutdown = 1;
|
22
|
2128 }
|
|
2129 #endif
|
0
|
2130 ngx_http_close_connection(c);
|
|
2131 return;
|
|
2132 }
|
|
2133 }
|
|
2134
|
|
2135 #endif
|
|
2136
|
|
2137 b = c->buffer;
|
|
2138 size = b->end - b->start;
|
|
2139
|
|
2140 if (b->pos == NULL) {
|
4
|
2141
|
|
2142 /*
|
|
2143 * The c->buffer's memory was freed by ngx_http_set_keepalive().
|
|
2144 * However, the c->buffer->start and c->buffer->end were not changed
|
|
2145 * to keep the buffer size.
|
|
2146 */
|
|
2147
|
50
|
2148 b->pos = ngx_palloc(c->pool, size);
|
|
2149 if (b->pos == NULL) {
|
0
|
2150 ngx_http_close_connection(c);
|
|
2151 return;
|
|
2152 }
|
|
2153
|
|
2154 b->start = b->pos;
|
|
2155 b->last = b->pos;
|
|
2156 b->end = b->pos + size;
|
|
2157 }
|
|
2158
|
|
2159 /*
|
|
2160 * MSIE closes a keepalive connection with RST flag
|
|
2161 * so we ignore ECONNRESET here.
|
|
2162 */
|
|
2163
|
|
2164 c->log_error = NGX_ERROR_IGNORE_ECONNRESET;
|
|
2165 ngx_set_socket_errno(0);
|
|
2166
|
|
2167 n = c->recv(c, b->last, size);
|
|
2168 c->log_error = NGX_ERROR_INFO;
|
|
2169
|
|
2170 if (n == NGX_AGAIN) {
|
58
|
2171 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) {
|
24
|
2172 ngx_http_close_connection(c);
|
|
2173 }
|
|
2174
|
0
|
2175 return;
|
|
2176 }
|
|
2177
|
|
2178 if (n == NGX_ERROR) {
|
|
2179 ngx_http_close_connection(c);
|
|
2180 return;
|
|
2181 }
|
|
2182
|
32
|
2183 c->log->handler = NULL;
|
0
|
2184
|
|
2185 if (n == 0) {
|
|
2186 ngx_log_error(NGX_LOG_INFO, c->log, ngx_socket_errno,
|
32
|
2187 "client %V closed keepalive connection", &c->addr_text);
|
0
|
2188 ngx_http_close_connection(c);
|
|
2189 return;
|
|
2190 }
|
|
2191
|
|
2192 b->last += n;
|
32
|
2193
|
116
|
2194 #if (NGX_STAT_STUB)
|
|
2195 ngx_atomic_fetch_add(ngx_stat_reading, 1);
|
|
2196 #endif
|
|
2197
|
32
|
2198 c->log->handler = ngx_http_log_error;
|
|
2199 c->log->action = "reading client request line";
|
0
|
2200
|
|
2201 ngx_http_init_request(rev);
|
|
2202 }
|
|
2203
|
|
2204
|
50
|
2205 static void
|
|
2206 ngx_http_set_lingering_close(ngx_http_request_t *r)
|
0
|
2207 {
|
|
2208 ngx_event_t *rev, *wev;
|
|
2209 ngx_connection_t *c;
|
|
2210 ngx_http_core_loc_conf_t *clcf;
|
|
2211
|
|
2212 c = r->connection;
|
|
2213
|
|
2214 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
2215
|
|
2216 rev = c->read;
|
58
|
2217 rev->handler = ngx_http_lingering_close_handler;
|
0
|
2218
|
106
|
2219 r->lingering_time = ngx_time() + (time_t) (clcf->lingering_time / 1000);
|
0
|
2220 ngx_add_timer(rev, clcf->lingering_timeout);
|
|
2221
|
58
|
2222 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) {
|
0
|
2223 ngx_http_close_request(r, 0);
|
|
2224 ngx_http_close_connection(c);
|
|
2225 return;
|
|
2226 }
|
|
2227
|
|
2228 wev = c->write;
|
58
|
2229 wev->handler = ngx_http_empty_handler;
|
0
|
2230
|
|
2231 if (wev->active) {
|
4
|
2232 if (ngx_event_flags & NGX_USE_KQUEUE_EVENT) {
|
0
|
2233 if (ngx_del_event(wev, NGX_WRITE_EVENT, NGX_DISABLE_EVENT)
|
|
2234 == NGX_ERROR)
|
|
2235 {
|
26
|
2236 ngx_http_close_request(r, 0);
|
0
|
2237 ngx_http_close_connection(c);
|
|
2238 return;
|
|
2239 }
|
|
2240
|
|
2241 } else if (ngx_event_flags & NGX_USE_LEVEL_EVENT) {
|
|
2242 if (ngx_del_event(wev, NGX_WRITE_EVENT, 0) == NGX_ERROR) {
|
26
|
2243 ngx_http_close_request(r, 0);
|
0
|
2244 ngx_http_close_connection(c);
|
|
2245 return;
|
|
2246 }
|
|
2247 }
|
|
2248 }
|
|
2249
|
|
2250 if (ngx_shutdown_socket(c->fd, NGX_WRITE_SHUTDOWN) == -1) {
|
|
2251 ngx_connection_error(c, ngx_socket_errno,
|
|
2252 ngx_shutdown_socket_n " failed");
|
|
2253 ngx_http_close_request(r, 0);
|
|
2254 ngx_http_close_connection(c);
|
|
2255 return;
|
|
2256 }
|
|
2257
|
|
2258 if (rev->ready) {
|
|
2259 ngx_http_lingering_close_handler(rev);
|
|
2260 }
|
|
2261 }
|
|
2262
|
|
2263
|
50
|
2264 static void
|
|
2265 ngx_http_lingering_close_handler(ngx_event_t *rev)
|
0
|
2266 {
|
|
2267 ssize_t n;
|
|
2268 ngx_msec_t timer;
|
|
2269 ngx_connection_t *c;
|
|
2270 ngx_http_request_t *r;
|
|
2271 ngx_http_core_loc_conf_t *clcf;
|
|
2272 u_char buffer[NGX_HTTP_LINGERING_BUFFER_SIZE];
|
|
2273
|
|
2274 c = rev->data;
|
|
2275 r = c->data;
|
|
2276
|
|
2277 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
2278 "http lingering close handler");
|
|
2279
|
|
2280 if (rev->timedout) {
|
|
2281 ngx_http_close_request(r, 0);
|
|
2282 ngx_http_close_connection(c);
|
|
2283 return;
|
|
2284 }
|
|
2285
|
|
2286 timer = r->lingering_time - ngx_time();
|
|
2287 if (timer <= 0) {
|
|
2288 ngx_http_close_request(r, 0);
|
|
2289 ngx_http_close_connection(c);
|
|
2290 return;
|
|
2291 }
|
|
2292
|
|
2293 do {
|
|
2294 n = c->recv(c, buffer, NGX_HTTP_LINGERING_BUFFER_SIZE);
|
|
2295
|
|
2296 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0, "lingering read: %d", n);
|
|
2297
|
|
2298 if (n == NGX_ERROR || n == 0) {
|
|
2299 ngx_http_close_request(r, 0);
|
|
2300 ngx_http_close_connection(c);
|
|
2301 return;
|
|
2302 }
|
|
2303
|
|
2304 } while (rev->ready);
|
|
2305
|
58
|
2306 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) {
|
26
|
2307 ngx_http_close_request(r, 0);
|
24
|
2308 ngx_http_close_connection(c);
|
|
2309 return;
|
|
2310 }
|
|
2311
|
0
|
2312 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
2313
|
|
2314 timer *= 1000;
|
|
2315
|
|
2316 if (timer > clcf->lingering_timeout) {
|
|
2317 timer = clcf->lingering_timeout;
|
|
2318 }
|
|
2319
|
|
2320 ngx_add_timer(rev, timer);
|
|
2321 }
|
|
2322
|
|
2323
|
50
|
2324 void
|
|
2325 ngx_http_empty_handler(ngx_event_t *wev)
|
0
|
2326 {
|
|
2327 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, wev->log, 0, "http empty handler");
|
|
2328
|
|
2329 return;
|
|
2330 }
|
|
2331
|
|
2332
|
58
|
2333 void
|
|
2334 ngx_http_request_empty_handler(ngx_http_request_t *r)
|
|
2335 {
|
|
2336 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
2337 "http requets empty handler");
|
|
2338
|
|
2339 return;
|
|
2340 }
|
|
2341
|
|
2342
|
50
|
2343 ngx_int_t
|
|
2344 ngx_http_send_last(ngx_http_request_t *r)
|
0
|
2345 {
|
|
2346 ngx_buf_t *b;
|
|
2347 ngx_chain_t out;
|
|
2348
|
50
|
2349 b = ngx_calloc_buf(r->pool);
|
|
2350 if (b == NULL) {
|
0
|
2351 return NGX_ERROR;
|
|
2352 }
|
|
2353
|
|
2354 b->last_buf = 1;
|
|
2355 out.buf = b;
|
|
2356 out.next = NULL;
|
|
2357
|
|
2358 return ngx_http_output_filter(r, &out);
|
|
2359 }
|
|
2360
|
|
2361
|
50
|
2362 void
|
58
|
2363 ngx_http_close_request(ngx_http_request_t *r, ngx_int_t error)
|
0
|
2364 {
|
|
2365 ngx_log_t *log;
|
58
|
2366 struct linger linger;
|
0
|
2367 ngx_http_log_ctx_t *ctx;
|
|
2368 ngx_http_core_loc_conf_t *clcf;
|
|
2369
|
|
2370 log = r->connection->log;
|
|
2371
|
|
2372 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, log, 0, "http close request");
|
|
2373
|
|
2374 if (r->pool == NULL) {
|
80
|
2375 ngx_log_error(NGX_LOG_ALERT, log, 0, "http request already closed");
|
0
|
2376 return;
|
|
2377 }
|
|
2378
|
|
2379 #if (NGX_STAT_STUB)
|
116
|
2380
|
0
|
2381 if (r->stat_reading) {
|
110
|
2382 ngx_atomic_fetch_add(ngx_stat_reading, -1);
|
0
|
2383 }
|
|
2384
|
|
2385 if (r->stat_writing) {
|
110
|
2386 ngx_atomic_fetch_add(ngx_stat_writing, -1);
|
0
|
2387 }
|
116
|
2388
|
0
|
2389 #endif
|
|
2390
|
|
2391 if (error && r->headers_out.status == 0) {
|
|
2392 r->headers_out.status = error;
|
|
2393 }
|
|
2394
|
|
2395 ngx_http_log_handler(r);
|
|
2396
|
|
2397 if (r->connection->timedout) {
|
|
2398 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
2399
|
|
2400 if (clcf->reset_timedout_connection) {
|
58
|
2401 linger.l_onoff = 1;
|
|
2402 linger.l_linger = 0;
|
0
|
2403
|
|
2404 if (setsockopt(r->connection->fd, SOL_SOCKET, SO_LINGER,
|
58
|
2405 (const void *) &linger, sizeof(struct linger)) == -1)
|
0
|
2406 {
|
|
2407 ngx_log_error(NGX_LOG_ALERT, log, ngx_socket_errno,
|
|
2408 "setsockopt(SO_LINGER) failed");
|
|
2409 }
|
|
2410 }
|
|
2411 }
|
|
2412
|
58
|
2413 /* the various request strings were allocated from r->pool */
|
0
|
2414 ctx = log->data;
|
10
|
2415 ctx->request = NULL;
|
0
|
2416
|
|
2417 r->request_line.len = 0;
|
|
2418
|
|
2419 ngx_destroy_pool(r->pool);
|
|
2420 }
|
|
2421
|
|
2422
|
80
|
2423 static void
|
50
|
2424 ngx_http_close_connection(ngx_connection_t *c)
|
0
|
2425 {
|
28
|
2426 ngx_pool_t *pool;
|
|
2427
|
0
|
2428 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
2429 "close http connection: %d", c->fd);
|
|
2430
|
88
|
2431 #if (NGX_HTTP_SSL)
|
2
|
2432
|
|
2433 if (c->ssl) {
|
|
2434 if (ngx_ssl_shutdown(c) == NGX_AGAIN) {
|
80
|
2435 c->read->handler = ngx_http_ssl_close_handler;
|
|
2436 c->write->handler = ngx_http_ssl_close_handler;
|
2
|
2437 return;
|
|
2438 }
|
|
2439 }
|
|
2440
|
|
2441 #endif
|
|
2442
|
0
|
2443 #if (NGX_STAT_STUB)
|
110
|
2444 ngx_atomic_fetch_add(ngx_stat_active, -1);
|
0
|
2445 #endif
|
|
2446
|
28
|
2447 pool = c->pool;
|
|
2448
|
0
|
2449 ngx_close_connection(c);
|
28
|
2450
|
50
|
2451 ngx_destroy_pool(pool);
|
0
|
2452 }
|
|
2453
|
|
2454
|
88
|
2455 #if (NGX_HTTP_SSL)
|
|
2456
|
|
2457 static void
|
|
2458 ngx_http_ssl_close_handler(ngx_event_t *ev)
|
|
2459 {
|
|
2460 ngx_connection_t *c;
|
|
2461
|
|
2462 c = ev->data;
|
|
2463
|
|
2464 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, ev->log, 0, "http ssl close handler");
|
|
2465
|
|
2466 if (ngx_ssl_shutdown(c) == NGX_AGAIN) {
|
|
2467 return;
|
|
2468 }
|
|
2469
|
|
2470 ngx_http_close_connection(c);
|
|
2471 }
|
|
2472
|
|
2473 #endif
|
|
2474
|
|
2475
|
50
|
2476 static u_char *
|
|
2477 ngx_http_log_error(ngx_log_t *log, u_char *buf, size_t len)
|
0
|
2478 {
|
32
|
2479 u_char *p;
|
54
|
2480 ngx_http_request_t *r;
|
32
|
2481 ngx_http_log_ctx_t *ctx;
|
10
|
2482
|
32
|
2483 if (log->action) {
|
58
|
2484 p = ngx_snprintf(buf, len, " while %s", log->action);
|
10
|
2485 len -= p - buf;
|
54
|
2486 buf = p;
|
10
|
2487 }
|
|
2488
|
58
|
2489 ctx = log->data;
|
|
2490
|
54
|
2491 p = ngx_snprintf(buf, len, ", client: %V", ctx->client);
|
58
|
2492 len -= p - buf;
|
54
|
2493
|
|
2494 r = ctx->request;
|
|
2495
|
58
|
2496 if (r) {
|
|
2497 return r->log_handler(r, p, len);
|
0
|
2498 }
|
10
|
2499
|
58
|
2500 return p;
|
|
2501 }
|
|
2502
|
|
2503
|
|
2504 static u_char *
|
|
2505 ngx_http_log_error_handler(ngx_http_request_t *r, u_char *buf, size_t len)
|
|
2506 {
|
|
2507 u_char *p;
|
54
|
2508
|
|
2509 if (r->server_name.data) {
|
|
2510 p = ngx_snprintf(buf, len, ", server: %V", &r->server_name);
|
52
|
2511 len -= p - buf;
|
54
|
2512 buf = p;
|
52
|
2513 }
|
|
2514
|
54
|
2515 if (r->unparsed_uri.data) {
|
|
2516 p = ngx_snprintf(buf, len, ", URL: \"%V\"", &r->unparsed_uri);
|
|
2517 len -= p - buf;
|
|
2518 buf = p;
|
|
2519
|
|
2520 } else {
|
|
2521 if (r->request_line.data == NULL && r->request_start) {
|
|
2522 for (p = r->request_start; p < r->header_in->last; p++) {
|
|
2523 if (*p == CR || *p == LF) {
|
|
2524 break;
|
|
2525 }
|
|
2526 }
|
|
2527
|
|
2528 r->request_line.len = p - r->request_start;
|
|
2529 r->request_line.data = r->request_start;
|
|
2530 }
|
|
2531
|
|
2532 if (r->request_line.len) {
|
|
2533 p = ngx_snprintf(buf, len, ", request: \"%V\"", &r->request_line);
|
|
2534 len -= p - buf;
|
|
2535 buf = p;
|
|
2536 }
|
10
|
2537 }
|
|
2538
|
54
|
2539 return ngx_http_log_error_info(r, buf, len);
|
0
|
2540 }
|
54
|
2541
|
|
2542
|
|
2543 u_char *
|
|
2544 ngx_http_log_error_info(ngx_http_request_t *r, u_char *buf, size_t len)
|
|
2545 {
|
|
2546 u_char *p;
|
|
2547
|
|
2548 if (r->headers_in.host) {
|
|
2549 p = ngx_snprintf(buf, len, ", host: \"%V\"",
|
|
2550 &r->headers_in.host->value);
|
|
2551 len -= p - buf;
|
|
2552 buf = p;
|
|
2553 }
|
|
2554
|
|
2555 if (r->headers_in.referer) {
|
|
2556 p = ngx_snprintf(buf, len, ", referrer: \"%V\"",
|
|
2557 &r->headers_in.referer->value);
|
|
2558 buf = p;
|
|
2559 }
|
|
2560
|
|
2561 return buf;
|
|
2562 }
|