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