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