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