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