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0
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1
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2 /*
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3 * Copyright (C) Igor Sysoev
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4 */
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5
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6
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7 #include <ngx_config.h>
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8 #include <ngx_core.h>
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9 #include <ngx_event.h>
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10 #include <ngx_http.h>
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11
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12
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13 static void ngx_http_init_request(ngx_event_t *ev);
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14 #if (NGX_HTTP_SSL)
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15 static void ngx_http_ssl_handshake(ngx_event_t *rev);
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16 #endif
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17 static void ngx_http_process_request_line(ngx_event_t *rev);
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18 static void ngx_http_process_request_headers(ngx_event_t *rev);
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19 static ssize_t ngx_http_read_request_header(ngx_http_request_t *r);
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20 static ngx_int_t ngx_http_alloc_large_header_buffer(ngx_http_request_t *r,
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50
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21 ngx_uint_t request_line);
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0
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22 static ngx_int_t ngx_http_process_request_header(ngx_http_request_t *r);
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26
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23 static ngx_int_t ngx_http_find_virtual_server(ngx_http_request_t *r);
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0
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24
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25 static void ngx_http_set_write_handler(ngx_http_request_t *r);
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26
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27 static void ngx_http_block_read(ngx_event_t *ev);
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28 static void ngx_http_read_discarded_body_event(ngx_event_t *rev);
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29 static ngx_int_t ngx_http_read_discarded_body(ngx_http_request_t *r);
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30
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31 static void ngx_http_set_keepalive(ngx_http_request_t *r);
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32 static void ngx_http_keepalive_handler(ngx_event_t *ev);
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33 static void ngx_http_set_lingering_close(ngx_http_request_t *r);
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34 static void ngx_http_lingering_close_handler(ngx_event_t *ev);
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35
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36 static void ngx_http_client_error(ngx_http_request_t *r,
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50
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37 int client_error, int error);
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32
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38 static u_char *ngx_http_log_error(ngx_log_t *log, u_char *buf, size_t len);
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0
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39
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40
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41 /* NGX_HTTP_PARSE_... errors */
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42
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43 static char *client_header_errors[] = {
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10
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44 "client %V sent invalid method \"%V\"",
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45 "client %V sent invalid request \"%V\"",
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46 "client %V sent too long URI in request \"%V\"",
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47 "client %V sent invalid method in HTTP/0.9 request \"%V\"",
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48
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49 "client %V sent invalid header, URL: \"%V\"",
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50 "client %V sent too long header line, URL: \"%V\"",
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51 "client %V sent HTTP/1.1 request without \"Host\" header, URL: \"%V\"",
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52 "client %V sent invalid \"Content-Length\" header, URL: \"%V\"",
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53 "client %V sent POST method without \"Content-Length\" header, URL: \"%V\"",
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0
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54 };
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55
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56
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57 ngx_http_header_t ngx_http_headers_in[] = {
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58 { ngx_string("Host"), offsetof(ngx_http_headers_in_t, host) },
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59 { ngx_string("Connection"), offsetof(ngx_http_headers_in_t, connection) },
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60 { ngx_string("If-Modified-Since"),
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38
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61 offsetof(ngx_http_headers_in_t, if_modified_since) },
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0
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62 { ngx_string("User-Agent"), offsetof(ngx_http_headers_in_t, user_agent) },
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63 { ngx_string("Referer"), offsetof(ngx_http_headers_in_t, referer) },
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64 { ngx_string("Content-Length"),
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38
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65 offsetof(ngx_http_headers_in_t, content_length) },
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28
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66 { ngx_string("Content-Type"),
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38
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67 offsetof(ngx_http_headers_in_t, content_type) },
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0
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68
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69 { ngx_string("Range"), offsetof(ngx_http_headers_in_t, range) },
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70 #if 0
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71 { ngx_string("If-Range"), offsetof(ngx_http_headers_in_t, if_range) },
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72 #endif
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73
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74 #if (NGX_HTTP_GZIP)
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75 { ngx_string("Accept-Encoding"),
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38
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76 offsetof(ngx_http_headers_in_t, accept_encoding) },
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0
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77 { ngx_string("Via"), offsetof(ngx_http_headers_in_t, via) },
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78 #endif
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79
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80 { ngx_string("Authorization"),
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38
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81 offsetof(ngx_http_headers_in_t, authorization) },
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0
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82
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83 { ngx_string("Keep-Alive"), offsetof(ngx_http_headers_in_t, keep_alive) },
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84
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85 #if (NGX_HTTP_PROXY)
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86 { ngx_string("X-Forwarded-For"),
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38
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87 offsetof(ngx_http_headers_in_t, x_forwarded_for) },
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6
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88 { ngx_string("X-Real-IP"), offsetof(ngx_http_headers_in_t, x_real_ip) },
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89 { ngx_string("X-URL"), offsetof(ngx_http_headers_in_t, x_url) },
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0
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90 #endif
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28
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91
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38
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92 #if (NGX_HTTP_HEADERS)
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93 { ngx_string("Accept"), offsetof(ngx_http_headers_in_t, accept) },
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94 { ngx_string("Accept-Language"),
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95 offsetof(ngx_http_headers_in_t, accept_language) },
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96 #endif
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97
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0
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98 { ngx_null_string, 0 }
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99 };
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100
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101
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102 #if 0
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50
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103 static void
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104 ngx_http_dummy(ngx_event_t *wev)
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0
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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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50
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111 void
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112 ngx_http_init_connection(ngx_connection_t *c)
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0
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113 {
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114 ngx_event_t *rev;
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115 ngx_http_log_ctx_t *ctx;
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116
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50
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117 ctx = ngx_palloc(c->pool, sizeof(ngx_http_log_ctx_t));
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118 if (ctx == NULL) {
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0
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119 ngx_http_close_connection(c);
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120 return;
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121 }
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122
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10
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123 ctx->client = &c->addr_text;
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124 ctx->request = NULL;
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32
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125
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126 c->log->connection = c->number;
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127 c->log->handler = ngx_http_log_error;
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0
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128 c->log->data = ctx;
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32
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129 c->log->action = "reading client request line";
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130
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0
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131 c->log_error = NGX_ERROR_INFO;
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132
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133 rev = c->read;
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134 rev->event_handler = ngx_http_init_request;
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135
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136 /* STUB: epoll edge */ c->write->event_handler = ngx_http_empty_handler;
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137
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138 if (rev->ready) {
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139 /* the deferred accept(), rtsig, aio, iocp */
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140
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141 if (ngx_accept_mutex) {
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142 if (ngx_mutex_lock(ngx_posted_events_mutex) == NGX_ERROR) {
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42
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143
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0
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144 ngx_http_close_connection(c);
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145 return;
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146 }
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147
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148 ngx_post_event(rev);
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149
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150 ngx_mutex_unlock(ngx_posted_events_mutex);
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42
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151
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152 #if (NGX_STAT_STUB)
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44
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153 ngx_atomic_inc(ngx_stat_reading);
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42
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154 #endif
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0
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155 return;
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156 }
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157
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158 #if (NGX_STAT_STUB)
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42
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159 ngx_atomic_inc(ngx_stat_reading);
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0
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160 #endif
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161
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162 ngx_http_init_request(rev);
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163 return;
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164 }
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165
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166 ngx_add_timer(rev, c->listening->post_accept_timeout);
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167
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168 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) {
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169 ngx_http_close_connection(c);
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170 return;
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171 }
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172
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173 #if 0
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174 /* TODO: learn SO_SNDBUF (to use in zerocopy) via kqueue's EV_CLEAR event */
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175
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176 c->write->ready = 0;
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177 c->write->event_handler = ngx_http_dummy;
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178
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179 if (ngx_handle_write_event(c->write, 0) == NGX_ERROR) {
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180 ngx_http_close_connection(c);
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181 return;
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182 }
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183 #endif
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184
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185 #if (NGX_STAT_STUB)
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42
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186 ngx_atomic_inc(ngx_stat_reading);
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0
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187 #endif
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188
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189 }
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190
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191
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50
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192 static
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193 void ngx_http_init_request(ngx_event_t *rev)
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0
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194 {
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195 ngx_uint_t i;
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196 socklen_t len;
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28
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197 struct sockaddr_in sin;
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0
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198 ngx_connection_t *c;
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199 ngx_http_request_t *r;
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200 ngx_http_in_port_t *in_port;
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201 ngx_http_in_addr_t *in_addr;
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202 ngx_http_connection_t *hc;
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203 ngx_http_server_name_t *server_name;
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204 ngx_http_core_srv_conf_t *cscf;
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205 ngx_http_core_loc_conf_t *clcf;
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206 #if (NGX_HTTP_SSL)
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207 ngx_http_ssl_srv_conf_t *sscf;
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208 #endif
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209
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210 c = rev->data;
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211
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212 if (rev->timedout) {
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213 ngx_log_error(NGX_LOG_INFO, c->log, NGX_ETIMEDOUT, "client timed out");
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214
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215 #if (NGX_STAT_STUB)
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42
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216 ngx_atomic_dec(ngx_stat_reading);
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0
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217 #endif
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218
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219 ngx_http_close_connection(c);
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220 return;
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221 }
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222
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223 hc = c->data;
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224
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225 if (hc) {
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226
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227 #if (NGX_STAT_STUB)
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42
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228 ngx_atomic_inc(ngx_stat_reading);
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0
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229 #endif
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230
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231 } else {
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50
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232 hc = ngx_pcalloc(c->pool, sizeof(ngx_http_connection_t));
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233 if (hc == NULL) {
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0
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234
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235 #if (NGX_STAT_STUB)
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42
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236 ngx_atomic_dec(ngx_stat_reading);
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0
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237 #endif
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238
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239 ngx_http_close_connection(c);
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240 return;
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241 }
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242 }
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243
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244 r = hc->request;
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245
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246 if (r) {
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247 ngx_memzero(r, sizeof(ngx_http_request_t));
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248
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249 r->pipeline = hc->pipeline;
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250
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251 if (hc->nbusy) {
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252 r->header_in = hc->busy[0];
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253 }
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254
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255 } else {
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50
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256 r = ngx_pcalloc(c->pool, sizeof(ngx_http_request_t));
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257 if (r == NULL) {
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0
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258
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259 #if (NGX_STAT_STUB)
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42
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260 ngx_atomic_dec(ngx_stat_reading);
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0
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261 #endif
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262
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263 ngx_http_close_connection(c);
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264 return;
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265 }
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266
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267 hc->request = r;
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268 }
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269
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270 #if (NGX_STAT_STUB)
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42
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271 ngx_atomic_dec(ngx_stat_reading);
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0
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272 #endif
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273
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274 c->data = r;
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275 r->http_connection = hc;
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276
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277 c->sent = 0;
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278 r->signature = NGX_HTTP_MODULE;
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279
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280 /* find the server configuration for the address:port */
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281
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282 /* AF_INET only */
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283
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284 in_port = c->servers;
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285 in_addr = in_port->addrs.elts;
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286
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287 r->port = in_port->port;
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288 r->port_text = &in_port->port_text;
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289
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290 i = 0;
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291
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292 if (in_port->addrs.nelts > 1) {
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293
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294 /*
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295 * There are several addresses on this port and one of them
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296 * is the "*:port" wildcard so getsockname() is needed to determine
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297 * the server address.
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298 *
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299 * AcceptEx() already gave this address.
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300 */
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301
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10
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302 #if (NGX_WIN32)
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0
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303 if (c->local_sockaddr) {
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304 r->in_addr =
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305 ((struct sockaddr_in *) c->local_sockaddr)->sin_addr.s_addr;
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306
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28
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307 } else
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0
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308 #endif
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28
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309 {
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0
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310 len = sizeof(struct sockaddr_in);
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28
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311 if (getsockname(c->fd, (struct sockaddr *) &sin, &len) == -1) {
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0
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312 ngx_connection_error(c, ngx_socket_errno,
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313 "getsockname() failed");
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314 ngx_http_close_connection(c);
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315 return;
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316 }
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317
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28
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318 r->in_addr = sin.sin_addr.s_addr;
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0
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319 }
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320
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321 /* the last in_port->addrs address is "*" */
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322
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323 for ( /* void */ ; i < in_port->addrs.nelts - 1; i++) {
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324 if (in_addr[i].addr == r->in_addr) {
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325 break;
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326 }
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327 }
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328
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329 } else {
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330 r->in_addr = in_addr[0].addr;
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331 }
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332
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26
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333 r->virtual_names = &in_addr[i];
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0
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334
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335 /* the default server configuration for the address:port */
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336 cscf = in_addr[i].core_srv_conf;
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337
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338 r->main_conf = cscf->ctx->main_conf;
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339 r->srv_conf = cscf->ctx->srv_conf;
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340 r->loc_conf = cscf->ctx->loc_conf;
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341
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342 rev->event_handler = ngx_http_process_request_line;
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343
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344 #if (NGX_HTTP_SSL)
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345
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346 sscf = ngx_http_get_module_srv_conf(r, ngx_http_ssl_module);
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347 if (sscf->enable) {
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348
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349 if (c->ssl == NULL) {
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350 if (ngx_ssl_create_session(sscf->ssl_ctx, c, NGX_SSL_BUFFER)
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351 == NGX_ERROR)
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352 {
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353 ngx_http_close_connection(c);
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354 return;
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355 }
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356
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26
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357 rev->event_handler = ngx_http_ssl_handshake;
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358
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0
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359 /*
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360 * The majority of browsers do not send the "close notify" alert.
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361 * Among them are MSIE, Mozilla, Netscape 4, Konqueror, and Links.
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362 * And what is more MSIE ignores the server's alert.
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363 *
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364 * Opera always sends the alert.
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365 */
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366
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367 c->ssl->no_rcv_shut = 1;
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368 }
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369
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370 r->filter_need_in_memory = 1;
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371 }
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372
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373 #endif
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374
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375 server_name = cscf->server_names.elts;
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6
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376 r->server_name = server_name->name;
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0
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377
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378 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
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379 c->log->file = clcf->err_log->file;
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380 if (!(c->log->log_level & NGX_LOG_DEBUG_CONNECTION)) {
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381 c->log->log_level = clcf->err_log->log_level;
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382 }
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383
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384 if (c->buffer == NULL) {
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385 c->buffer = ngx_create_temp_buf(c->pool,
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386 cscf->client_header_buffer_size);
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387 if (c->buffer == NULL) {
|
|
|
388 ngx_http_close_connection(c);
|
|
|
389 return;
|
|
|
390 }
|
|
|
391 }
|
|
|
392
|
|
|
393 if (r->header_in == NULL) {
|
|
|
394 r->header_in = c->buffer;
|
|
|
395 }
|
|
|
396
|
|
50
|
397 r->pool = ngx_create_pool(cscf->request_pool_size, c->log);
|
|
|
398 if (r->pool == NULL) {
|
|
0
|
399 ngx_http_close_connection(c);
|
|
|
400 return;
|
|
|
401 }
|
|
|
402
|
|
48
|
403 if (ngx_array_init(&r->cleanup, r->pool, 4, sizeof(ngx_http_cleanup_t))
|
|
0
|
404 == NGX_ERROR)
|
|
|
405 {
|
|
|
406 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
407 ngx_http_close_connection(c);
|
|
|
408 return;
|
|
|
409 }
|
|
|
410
|
|
|
411
|
|
|
412 if (ngx_list_init(&r->headers_out.headers, r->pool, 20,
|
|
|
413 sizeof(ngx_table_elt_t)) == NGX_ERROR)
|
|
|
414 {
|
|
|
415 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
416 ngx_http_close_connection(c);
|
|
|
417 return;
|
|
|
418 }
|
|
|
419
|
|
|
420
|
|
|
421 r->ctx = ngx_pcalloc(r->pool, sizeof(void *) * ngx_http_max_module);
|
|
|
422 if (r->ctx == NULL) {
|
|
|
423 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
424 ngx_http_close_connection(c);
|
|
|
425 return;
|
|
|
426 }
|
|
|
427
|
|
|
428 c->single_connection = 1;
|
|
|
429 r->connection = c;
|
|
|
430
|
|
46
|
431 r->start_time = ngx_time();
|
|
|
432
|
|
0
|
433 r->file.fd = NGX_INVALID_FILE;
|
|
|
434
|
|
|
435 r->headers_in.content_length_n = -1;
|
|
|
436 r->headers_in.keep_alive_n = -1;
|
|
|
437 r->headers_out.content_length_n = -1;
|
|
|
438 r->headers_out.last_modified_time = -1;
|
|
|
439
|
|
|
440 r->http_state = NGX_HTTP_READING_REQUEST_STATE;
|
|
|
441
|
|
|
442 #if (NGX_STAT_STUB)
|
|
42
|
443 ngx_atomic_inc(ngx_stat_reading);
|
|
26
|
444 r->stat_reading = 1;
|
|
42
|
445 ngx_atomic_inc(ngx_stat_requests);
|
|
0
|
446 #endif
|
|
|
447
|
|
|
448 rev->event_handler(rev);
|
|
|
449 }
|
|
|
450
|
|
|
451
|
|
|
452 #if (NGX_HTTP_SSL)
|
|
|
453
|
|
50
|
454 static void
|
|
|
455 ngx_http_ssl_handshake(ngx_event_t *rev)
|
|
0
|
456 {
|
|
10
|
457 u_char buf[1];
|
|
|
458 ssize_t n;
|
|
0
|
459 ngx_int_t rc;
|
|
|
460 ngx_connection_t *c;
|
|
|
461 ngx_http_request_t *r;
|
|
|
462
|
|
|
463 c = rev->data;
|
|
|
464 r = c->data;
|
|
|
465
|
|
|
466 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, rev->log, 0,
|
|
|
467 "http check ssl handshake");
|
|
|
468
|
|
|
469 if (rev->timedout) {
|
|
|
470 ngx_http_client_error(r, 0, NGX_HTTP_REQUEST_TIME_OUT);
|
|
|
471 return;
|
|
|
472 }
|
|
|
473
|
|
|
474 n = recv(c->fd, buf, 1, MSG_PEEK);
|
|
|
475
|
|
|
476 if (n == -1 && ngx_socket_errno == NGX_EAGAIN) {
|
|
|
477 return;
|
|
|
478 }
|
|
|
479
|
|
|
480 if (n == 1) {
|
|
|
481 if (buf[0] == 0x80 /* SSLv2 */ || buf[0] == 0x16 /* SSLv3/TLSv1 */) {
|
|
|
482 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, rev->log, 0,
|
|
10
|
483 "https ssl handshake: 0x%02Xd", buf[0]);
|
|
0
|
484
|
|
|
485 c->recv = ngx_ssl_recv;
|
|
|
486 c->send_chain = ngx_ssl_send_chain;
|
|
|
487
|
|
|
488 rc = ngx_ssl_handshake(c);
|
|
|
489
|
|
|
490 if (rc == NGX_ERROR) {
|
|
|
491 ngx_http_close_request(r, NGX_HTTP_BAD_REQUEST);
|
|
|
492 ngx_http_close_connection(r->connection);
|
|
|
493 return;
|
|
|
494 }
|
|
|
495
|
|
|
496 if (rc != NGX_OK) {
|
|
|
497 return;
|
|
|
498 }
|
|
|
499
|
|
|
500 } else {
|
|
|
501 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, rev->log, 0,
|
|
|
502 "plain http");
|
|
|
503
|
|
|
504 r->plain_http = 1;
|
|
|
505 }
|
|
|
506 }
|
|
|
507
|
|
|
508 rev->event_handler = ngx_http_process_request_line;
|
|
|
509 ngx_http_process_request_line(rev);
|
|
|
510 }
|
|
|
511
|
|
|
512 #endif
|
|
|
513
|
|
|
514
|
|
50
|
515 static void
|
|
|
516 ngx_http_process_request_line(ngx_event_t *rev)
|
|
0
|
517 {
|
|
|
518 ssize_t n;
|
|
|
519 ngx_int_t rc, rv;
|
|
|
520 ngx_connection_t *c;
|
|
|
521 ngx_http_request_t *r;
|
|
|
522 ngx_http_log_ctx_t *ctx;
|
|
|
523
|
|
|
524 c = rev->data;
|
|
|
525 r = c->data;
|
|
|
526
|
|
|
527 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, rev->log, 0,
|
|
|
528 "http process request line");
|
|
|
529
|
|
|
530 if (rev->timedout) {
|
|
|
531 ngx_http_client_error(r, 0, NGX_HTTP_REQUEST_TIME_OUT);
|
|
|
532 return;
|
|
|
533 }
|
|
|
534
|
|
|
535 rc = NGX_AGAIN;
|
|
|
536
|
|
|
537 for ( ;; ) {
|
|
|
538
|
|
|
539 if (rc == NGX_AGAIN) {
|
|
|
540 n = ngx_http_read_request_header(r);
|
|
|
541
|
|
|
542 if (n == NGX_AGAIN || n == NGX_ERROR) {
|
|
|
543 return;
|
|
|
544 }
|
|
|
545 }
|
|
|
546
|
|
|
547 rc = ngx_http_parse_request_line(r, r->header_in);
|
|
|
548
|
|
|
549 if (rc == NGX_OK) {
|
|
|
550
|
|
|
551 /* the request line has been parsed successfully */
|
|
|
552
|
|
10
|
553 r->request_line.len = r->request_end - r->request_start;
|
|
|
554 r->request_line.data = r->request_start;
|
|
|
555
|
|
0
|
556
|
|
|
557 if (r->args_start) {
|
|
|
558 r->uri.len = r->args_start - 1 - r->uri_start;
|
|
|
559 } else {
|
|
|
560 r->uri.len = r->uri_end - r->uri_start;
|
|
|
561 }
|
|
|
562
|
|
18
|
563
|
|
2
|
564 if (r->complex_uri || r->quoted_uri) {
|
|
10
|
565
|
|
50
|
566 r->uri.data = ngx_palloc(r->pool, r->uri.len + 1);
|
|
|
567 if (r->uri.data == NULL) {
|
|
10
|
568 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
569 ngx_http_close_connection(c);
|
|
|
570 return;
|
|
|
571 }
|
|
|
572
|
|
0
|
573 rc = ngx_http_parse_complex_uri(r);
|
|
|
574
|
|
|
575 if (rc == NGX_HTTP_INTERNAL_SERVER_ERROR) {
|
|
|
576 ngx_http_close_request(r, rc);
|
|
|
577 ngx_http_close_connection(c);
|
|
|
578 return;
|
|
|
579 }
|
|
|
580
|
|
|
581 if (rc != NGX_OK) {
|
|
|
582 ngx_http_client_error(r, rc, NGX_HTTP_BAD_REQUEST);
|
|
|
583 return;
|
|
|
584 }
|
|
|
585
|
|
|
586 } else {
|
|
10
|
587 r->uri.data = r->uri_start;
|
|
0
|
588 }
|
|
|
589
|
|
18
|
590
|
|
10
|
591 r->unparsed_uri.len = r->uri_end - r->uri_start;
|
|
|
592 r->unparsed_uri.data = r->uri_start;
|
|
|
593
|
|
0
|
594
|
|
|
595 if (r->method == 0) {
|
|
|
596 r->method_name.len = r->method_end - r->request_start + 1;
|
|
|
597 r->method_name.data = r->request_line.data;
|
|
|
598 }
|
|
|
599
|
|
10
|
600
|
|
28
|
601 if (r->http_protocol.data) {
|
|
|
602 r->http_protocol.len = r->request_end - r->http_protocol.data;
|
|
|
603 }
|
|
|
604
|
|
|
605
|
|
0
|
606 if (r->uri_ext) {
|
|
|
607 if (r->args_start) {
|
|
|
608 r->exten.len = r->args_start - 1 - r->uri_ext;
|
|
|
609 } else {
|
|
|
610 r->exten.len = r->uri_end - r->uri_ext;
|
|
|
611 }
|
|
|
612
|
|
10
|
613 r->exten.data = r->uri_ext;
|
|
0
|
614 }
|
|
|
615
|
|
10
|
616
|
|
0
|
617 if (r->args_start && r->uri_end > r->args_start) {
|
|
|
618 r->args.len = r->uri_end - r->args_start;
|
|
10
|
619 r->args.data = r->args_start;
|
|
0
|
620 }
|
|
|
621
|
|
10
|
622
|
|
|
623 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
|
624 "http request line: \"%V\"", &r->request_line);
|
|
|
625
|
|
0
|
626 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
10
|
627 "http uri: \"%V\"", &r->uri);
|
|
0
|
628
|
|
|
629 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
10
|
630 "http args: \"%V\"", &r->args);
|
|
0
|
631
|
|
|
632 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
10
|
633 "http exten: \"%V\"", &r->exten);
|
|
|
634
|
|
|
635 ctx = c->log->data;
|
|
|
636 ctx->request = r;
|
|
0
|
637
|
|
|
638 if (r->http_version < NGX_HTTP_VERSION_10) {
|
|
|
639 rev->event_handler = ngx_http_block_read;
|
|
|
640 ngx_http_handler(r);
|
|
|
641 return;
|
|
|
642 }
|
|
|
643
|
|
|
644
|
|
|
645 if (ngx_list_init(&r->headers_in.headers, r->pool, 20,
|
|
|
646 sizeof(ngx_table_elt_t)) == NGX_ERROR)
|
|
|
647 {
|
|
|
648 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
649 ngx_http_close_connection(c);
|
|
|
650 return;
|
|
|
651 }
|
|
|
652
|
|
|
653
|
|
48
|
654 if (ngx_array_init(&r->headers_in.cookies, r->pool, 2,
|
|
0
|
655 sizeof(ngx_table_elt_t *)) == NGX_ERROR)
|
|
|
656 {
|
|
|
657 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
658 ngx_http_close_connection(c);
|
|
|
659 return;
|
|
|
660 }
|
|
|
661
|
|
32
|
662 c->log->action = "reading client request headers";
|
|
0
|
663
|
|
|
664 rev->event_handler = ngx_http_process_request_headers;
|
|
|
665 ngx_http_process_request_headers(rev);
|
|
|
666
|
|
|
667 return;
|
|
|
668
|
|
|
669 } else if (rc != NGX_AGAIN) {
|
|
|
670
|
|
|
671 /* there was error while a request line parsing */
|
|
|
672
|
|
10
|
673 ngx_http_client_error(r, rc, NGX_HTTP_BAD_REQUEST);
|
|
|
674
|
|
|
675 #if 0
|
|
0
|
676 for (p = r->request_start; p < r->header_in->last; p++) {
|
|
|
677 if (*p == CR || *p == LF) {
|
|
|
678 break;
|
|
|
679 }
|
|
|
680 }
|
|
|
681
|
|
|
682 r->request_line.len = p - r->request_start;
|
|
|
683 r->request_line.data = r->request_start;
|
|
|
684
|
|
|
685 if (rc == NGX_HTTP_PARSE_INVALID_METHOD) {
|
|
|
686 r->http_version = NGX_HTTP_VERSION_10;
|
|
|
687 }
|
|
|
688
|
|
|
689 ngx_http_client_error(r, rc,
|
|
|
690 (rc == NGX_HTTP_PARSE_INVALID_METHOD) ?
|
|
|
691 NGX_HTTP_NOT_IMPLEMENTED:
|
|
|
692 NGX_HTTP_BAD_REQUEST);
|
|
10
|
693 #endif
|
|
|
694
|
|
0
|
695 return;
|
|
|
696 }
|
|
|
697
|
|
|
698 /* NGX_AGAIN: a request line parsing is still incomplete */
|
|
|
699
|
|
|
700 if (r->header_in->pos == r->header_in->end) {
|
|
|
701
|
|
|
702 rv = ngx_http_alloc_large_header_buffer(r, 1);
|
|
|
703
|
|
|
704 if (rv == NGX_ERROR) {
|
|
|
705 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
706 ngx_http_close_connection(c);
|
|
|
707 return;
|
|
|
708 }
|
|
|
709
|
|
|
710 if (rv == NGX_DECLINED) {
|
|
|
711 ngx_http_client_error(r, NGX_HTTP_PARSE_TOO_LONG_URI,
|
|
|
712 NGX_HTTP_REQUEST_URI_TOO_LARGE);
|
|
|
713 return;
|
|
|
714 }
|
|
|
715 }
|
|
|
716 }
|
|
|
717 }
|
|
|
718
|
|
|
719
|
|
50
|
720 static void
|
|
|
721 ngx_http_process_request_headers(ngx_event_t *rev)
|
|
0
|
722 {
|
|
|
723 ssize_t n;
|
|
|
724 ngx_int_t rc, rv, i;
|
|
|
725 ngx_table_elt_t *h, **cookie;
|
|
|
726 ngx_connection_t *c;
|
|
|
727 ngx_http_request_t *r;
|
|
|
728
|
|
|
729 c = rev->data;
|
|
|
730 r = c->data;
|
|
|
731
|
|
|
732 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, rev->log, 0,
|
|
|
733 "http process request header line");
|
|
|
734
|
|
|
735 if (rev->timedout) {
|
|
|
736 ngx_http_client_error(r, 0, NGX_HTTP_REQUEST_TIME_OUT);
|
|
|
737 return;
|
|
|
738 }
|
|
|
739
|
|
|
740 rc = NGX_AGAIN;
|
|
|
741
|
|
|
742 for ( ;; ) {
|
|
|
743
|
|
|
744 if (rc == NGX_AGAIN) {
|
|
|
745
|
|
|
746 if (r->header_in->pos == r->header_in->end) {
|
|
|
747
|
|
|
748 rv = ngx_http_alloc_large_header_buffer(r, 0);
|
|
|
749
|
|
|
750 if (rv == NGX_ERROR) {
|
|
|
751 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
752 ngx_http_close_connection(c);
|
|
|
753 return;
|
|
|
754 }
|
|
|
755
|
|
|
756 if (rv == NGX_DECLINED) {
|
|
|
757 ngx_http_client_error(r, NGX_HTTP_PARSE_TOO_LONG_HEADER,
|
|
|
758 NGX_HTTP_BAD_REQUEST);
|
|
|
759 return;
|
|
|
760 }
|
|
|
761 }
|
|
|
762
|
|
|
763 n = ngx_http_read_request_header(r);
|
|
|
764
|
|
|
765 if (n == NGX_AGAIN || n == NGX_ERROR) {
|
|
|
766 return;
|
|
|
767 }
|
|
|
768 }
|
|
|
769
|
|
|
770 rc = ngx_http_parse_header_line(r, r->header_in);
|
|
|
771
|
|
|
772 if (rc == NGX_OK) {
|
|
|
773
|
|
|
774 /* a header line has been parsed successfully */
|
|
|
775
|
|
|
776 r->headers_n++;
|
|
|
777
|
|
50
|
778 h = ngx_list_push(&r->headers_in.headers);
|
|
|
779 if (h == NULL) {
|
|
0
|
780 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
781 ngx_http_close_connection(c);
|
|
|
782 return;
|
|
|
783 }
|
|
|
784
|
|
|
785 h->key.len = r->header_name_end - r->header_name_start;
|
|
|
786 h->key.data = r->header_name_start;
|
|
|
787 h->key.data[h->key.len] = '\0';
|
|
|
788
|
|
|
789 h->value.len = r->header_end - r->header_start;
|
|
|
790 h->value.data = r->header_start;
|
|
|
791 h->value.data[h->value.len] = '\0';
|
|
|
792
|
|
|
793 if (h->key.len == sizeof("Cookie") - 1
|
|
|
794 && ngx_strcasecmp(h->key.data, "Cookie") == 0)
|
|
|
795 {
|
|
50
|
796 cookie = ngx_array_push(&r->headers_in.cookies);
|
|
|
797 if (cookie == NULL) {
|
|
0
|
798 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
799 ngx_http_close_connection(c);
|
|
|
800 return;
|
|
|
801 }
|
|
|
802
|
|
|
803 *cookie = h;
|
|
|
804
|
|
|
805 } else {
|
|
|
806
|
|
|
807 for (i = 0; ngx_http_headers_in[i].name.len != 0; i++) {
|
|
|
808 if (ngx_http_headers_in[i].name.len != h->key.len) {
|
|
|
809 continue;
|
|
|
810 }
|
|
|
811
|
|
|
812 if (ngx_strcasecmp(ngx_http_headers_in[i].name.data,
|
|
|
813 h->key.data) == 0)
|
|
|
814 {
|
|
|
815 *((ngx_table_elt_t **) ((char *) &r->headers_in
|
|
|
816 + ngx_http_headers_in[i].offset)) = h;
|
|
|
817 break;
|
|
|
818 }
|
|
|
819 }
|
|
|
820 }
|
|
|
821
|
|
|
822 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
10
|
823 "http header: \"%V: %V\"",
|
|
|
824 &h->key, &h->value);
|
|
0
|
825
|
|
|
826 continue;
|
|
|
827
|
|
|
828 } else if (rc == NGX_HTTP_PARSE_HEADER_DONE) {
|
|
|
829
|
|
|
830 /* a whole header has been parsed successfully */
|
|
|
831
|
|
|
832 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
833 "http header done");
|
|
|
834
|
|
24
|
835 r->request_length += r->header_in->pos - r->header_in->start;
|
|
|
836
|
|
0
|
837 r->http_state = NGX_HTTP_PROCESS_REQUEST_STATE;
|
|
|
838
|
|
|
839 rc = ngx_http_process_request_header(r);
|
|
|
840
|
|
|
841 if (rc != NGX_OK) {
|
|
|
842 ngx_http_client_error(r, rc, NGX_HTTP_BAD_REQUEST);
|
|
|
843 return;
|
|
|
844 }
|
|
|
845
|
|
|
846 if (rev->timer_set) {
|
|
|
847 ngx_del_timer(rev);
|
|
|
848 }
|
|
|
849
|
|
|
850 #if (NGX_STAT_STUB)
|
|
42
|
851 ngx_atomic_dec(ngx_stat_reading);
|
|
0
|
852 r->stat_reading = 0;
|
|
42
|
853 ngx_atomic_inc(ngx_stat_writing);
|
|
0
|
854 r->stat_writing = 1;
|
|
|
855 #endif
|
|
|
856
|
|
|
857 rev->event_handler = ngx_http_block_read;
|
|
|
858 ngx_http_handler(r);
|
|
|
859 return;
|
|
|
860
|
|
|
861 } else if (rc != NGX_AGAIN) {
|
|
|
862
|
|
|
863 /* there was error while a header line parsing */
|
|
|
864
|
|
|
865 #if (NGX_DEBUG)
|
|
|
866 if (rc == NGX_HTTP_PARSE_INVALID_HEADER
|
|
|
867 && (rev->log->log_level & NGX_LOG_DEBUG_HTTP))
|
|
|
868 {
|
|
|
869 u_char *p;
|
|
|
870 for (p = r->header_name_start;
|
|
|
871 p < r->header_in->last - 1;
|
|
|
872 p++)
|
|
|
873 {
|
|
|
874 if (*p == LF) {
|
|
|
875 break;
|
|
|
876 }
|
|
|
877 }
|
|
|
878 *p = '\0';
|
|
|
879 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, rev->log, 0,
|
|
|
880 "http invalid header: \"%s\"",
|
|
|
881 r->header_name_start);
|
|
|
882 }
|
|
|
883 #endif
|
|
|
884
|
|
|
885 ngx_http_client_error(r, rc, NGX_HTTP_BAD_REQUEST);
|
|
|
886 return;
|
|
|
887 }
|
|
|
888
|
|
|
889 /* NGX_AGAIN: a header line parsing is still not complete */
|
|
|
890
|
|
|
891 }
|
|
|
892 }
|
|
|
893
|
|
|
894
|
|
50
|
895 static ssize_t
|
|
|
896 ngx_http_read_request_header(ngx_http_request_t *r)
|
|
0
|
897 {
|
|
|
898 ssize_t n;
|
|
|
899 ngx_event_t *rev;
|
|
|
900 ngx_http_core_srv_conf_t *cscf;
|
|
|
901
|
|
|
902 rev = r->connection->read;
|
|
|
903
|
|
|
904 n = r->header_in->last - r->header_in->pos;
|
|
|
905
|
|
|
906 if (n > 0) {
|
|
|
907 return n;
|
|
|
908 }
|
|
|
909
|
|
|
910 if (!rev->ready) {
|
|
|
911 return NGX_AGAIN;
|
|
|
912 }
|
|
|
913
|
|
|
914 n = r->connection->recv(r->connection, r->header_in->last,
|
|
|
915 r->header_in->end - r->header_in->last);
|
|
|
916
|
|
|
917 if (n == NGX_AGAIN) {
|
|
|
918 if (!r->header_timeout_set) {
|
|
|
919 cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
|
|
|
920 ngx_add_timer(rev, cscf->client_header_timeout);
|
|
|
921 r->header_timeout_set = 1;
|
|
|
922 }
|
|
|
923
|
|
|
924 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) {
|
|
|
925 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
926 ngx_http_close_connection(r->connection);
|
|
|
927 return NGX_ERROR;
|
|
|
928 }
|
|
|
929
|
|
|
930 return NGX_AGAIN;
|
|
|
931 }
|
|
|
932
|
|
|
933 if (n == 0) {
|
|
|
934 ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
|
|
|
935 "client closed prematurely connection");
|
|
|
936 }
|
|
|
937
|
|
|
938 if (n == 0 || n == NGX_ERROR) {
|
|
|
939 ngx_http_close_request(r, NGX_HTTP_BAD_REQUEST);
|
|
|
940 ngx_http_close_connection(r->connection);
|
|
|
941 return NGX_ERROR;
|
|
|
942 }
|
|
|
943
|
|
|
944 r->header_in->last += n;
|
|
|
945
|
|
|
946 return n;
|
|
|
947 }
|
|
|
948
|
|
|
949
|
|
50
|
950 static ngx_int_t
|
|
|
951 ngx_http_alloc_large_header_buffer(ngx_http_request_t *r,
|
|
|
952 ngx_uint_t request_line)
|
|
0
|
953 {
|
|
|
954 u_char *old, *new;
|
|
|
955 ngx_buf_t *b;
|
|
|
956 ngx_http_connection_t *hc;
|
|
|
957 ngx_http_core_srv_conf_t *cscf;
|
|
|
958
|
|
|
959 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
960 "http alloc large header buffer");
|
|
|
961
|
|
|
962 if (request_line && r->state == 0) {
|
|
|
963
|
|
|
964 /* the client fills up the buffer with "\r\n" */
|
|
|
965
|
|
24
|
966 r->request_length += r->header_in->end - r->header_in->start;
|
|
|
967
|
|
0
|
968 r->header_in->pos = r->header_in->start;
|
|
|
969 r->header_in->last = r->header_in->start;
|
|
|
970
|
|
|
971 return NGX_OK;
|
|
|
972 }
|
|
|
973
|
|
|
974 old = request_line ? r->request_start : r->header_name_start;
|
|
|
975
|
|
|
976 cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
|
|
|
977
|
|
|
978 if (r->state != 0
|
|
|
979 && (size_t) (r->header_in->pos - old)
|
|
|
980 >= cscf->large_client_header_buffers.size)
|
|
|
981 {
|
|
|
982 return NGX_DECLINED;
|
|
|
983 }
|
|
|
984
|
|
|
985 hc = r->http_connection;
|
|
|
986
|
|
|
987 if (hc->nfree) {
|
|
|
988 b = hc->free[--hc->nfree];
|
|
|
989
|
|
|
990 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
10
|
991 "http large header free: %p %uz",
|
|
0
|
992 b->pos, b->end - b->last);
|
|
|
993
|
|
|
994 } else if (hc->nbusy < cscf->large_client_header_buffers.num) {
|
|
|
995
|
|
|
996 if (hc->busy == NULL) {
|
|
|
997 hc->busy = ngx_palloc(r->connection->pool,
|
|
|
998 cscf->large_client_header_buffers.num * sizeof(ngx_buf_t *));
|
|
|
999 if (hc->busy == NULL) {
|
|
|
1000 return NGX_ERROR;
|
|
|
1001 }
|
|
|
1002 }
|
|
|
1003
|
|
|
1004 b = ngx_create_temp_buf(r->connection->pool,
|
|
|
1005 cscf->large_client_header_buffers.size);
|
|
|
1006 if (b == NULL) {
|
|
|
1007 return NGX_ERROR;
|
|
|
1008 }
|
|
|
1009
|
|
|
1010 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
10
|
1011 "http large header alloc: %p %uz",
|
|
0
|
1012 b->pos, b->end - b->last);
|
|
|
1013
|
|
|
1014 } else {
|
|
|
1015 return NGX_DECLINED;
|
|
|
1016 }
|
|
|
1017
|
|
|
1018 hc->busy[hc->nbusy++] = b;
|
|
|
1019
|
|
|
1020 if (r->state == 0) {
|
|
|
1021 /*
|
|
|
1022 * r->state == 0 means that a header line was parsed successfully
|
|
|
1023 * and we do not need to copy incomplete header line and
|
|
|
1024 * to relocate the parser header pointers
|
|
|
1025 */
|
|
|
1026
|
|
24
|
1027 r->request_length += r->header_in->end - r->header_in->start;
|
|
|
1028
|
|
0
|
1029 r->header_in = b;
|
|
|
1030
|
|
|
1031 return NGX_OK;
|
|
|
1032 }
|
|
|
1033
|
|
|
1034 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1035 "http large header copy: %d", r->header_in->pos - old);
|
|
|
1036
|
|
24
|
1037 r->request_length += old - r->header_in->start;
|
|
|
1038
|
|
0
|
1039 new = b->start;
|
|
|
1040
|
|
|
1041 ngx_memcpy(new, old, r->header_in->pos - old);
|
|
|
1042
|
|
|
1043 b->pos = new + (r->header_in->pos - old);
|
|
|
1044 b->last = new + (r->header_in->pos - old);
|
|
|
1045
|
|
|
1046 if (request_line) {
|
|
|
1047 r->request_start = new;
|
|
|
1048
|
|
|
1049 if (r->request_end) {
|
|
|
1050 r->request_end = new + (r->request_end - old);
|
|
|
1051 }
|
|
|
1052
|
|
|
1053 r->method_end = new + (r->method_end - old);
|
|
|
1054
|
|
|
1055 r->uri_start = new + (r->uri_start - old);
|
|
|
1056 r->uri_end = new + (r->uri_end - old);
|
|
|
1057
|
|
|
1058 if (r->schema_start) {
|
|
|
1059 r->schema_start = new + (r->schema_start - old);
|
|
|
1060 r->schema_end = new + (r->schema_end - old);
|
|
|
1061 }
|
|
|
1062
|
|
|
1063 if (r->host_start) {
|
|
|
1064 r->host_start = new + (r->host_start - old);
|
|
|
1065 r->host_end = new + (r->host_end - old);
|
|
|
1066 }
|
|
|
1067
|
|
|
1068 if (r->port_start) {
|
|
|
1069 r->port_start = new + (r->port_start - old);
|
|
|
1070 r->port_end = new + (r->port_end - old);
|
|
|
1071 }
|
|
|
1072
|
|
|
1073 if (r->uri_ext) {
|
|
|
1074 r->uri_ext = new + (r->uri_ext - old);
|
|
|
1075 }
|
|
|
1076
|
|
|
1077 if (r->args_start) {
|
|
|
1078 r->args_start = new + (r->args_start - old);
|
|
|
1079 }
|
|
|
1080
|
|
|
1081 } else {
|
|
|
1082 r->header_name_start = new;
|
|
|
1083 r->header_name_end = new + (r->header_name_end - old);
|
|
|
1084 r->header_start = new + (r->header_start - old);
|
|
|
1085 r->header_end = new + (r->header_end - old);
|
|
|
1086 }
|
|
|
1087
|
|
|
1088 r->header_in = b;
|
|
|
1089
|
|
|
1090 return NGX_OK;
|
|
|
1091 }
|
|
|
1092
|
|
|
1093
|
|
50
|
1094 static ngx_int_t
|
|
|
1095 ngx_http_process_request_header(ngx_http_request_t *r)
|
|
0
|
1096 {
|
|
26
|
1097 u_char *ua, *user_agent, ch;
|
|
|
1098 size_t len;
|
|
0
|
1099
|
|
|
1100 if (r->headers_in.host) {
|
|
|
1101 for (len = 0; len < r->headers_in.host->value.len; len++) {
|
|
26
|
1102 ch = r->headers_in.host->value.data[len];
|
|
|
1103
|
|
|
1104 if (ch == ':') {
|
|
0
|
1105 break;
|
|
|
1106 }
|
|
26
|
1107
|
|
|
1108 r->headers_in.host->value.data[len] = ngx_tolower(ch);
|
|
0
|
1109 }
|
|
|
1110 r->headers_in.host_name_len = len;
|
|
|
1111
|
|
26
|
1112 if (ngx_http_find_virtual_server(r) != NGX_OK) {
|
|
|
1113 return NGX_HTTP_PARSE_INVALID_HOST;
|
|
0
|
1114 }
|
|
|
1115
|
|
|
1116 } else {
|
|
|
1117 if (r->http_version > NGX_HTTP_VERSION_10) {
|
|
|
1118 return NGX_HTTP_PARSE_NO_HOST_HEADER;
|
|
|
1119 }
|
|
|
1120 r->headers_in.host_name_len = 0;
|
|
|
1121 }
|
|
|
1122
|
|
|
1123 if (r->headers_in.content_length) {
|
|
|
1124 r->headers_in.content_length_n =
|
|
50
|
1125 ngx_atosz(r->headers_in.content_length->value.data,
|
|
0
|
1126 r->headers_in.content_length->value.len);
|
|
|
1127
|
|
|
1128 if (r->headers_in.content_length_n == NGX_ERROR) {
|
|
|
1129 return NGX_HTTP_PARSE_INVALID_CL_HEADER;
|
|
|
1130 }
|
|
|
1131 }
|
|
|
1132
|
|
32
|
1133 if (r->method == NGX_HTTP_POST && r->headers_in.content_length_n == -1) {
|
|
0
|
1134 return NGX_HTTP_PARSE_POST_WO_CL_HEADER;
|
|
|
1135 }
|
|
|
1136
|
|
|
1137 if (r->plain_http) {
|
|
|
1138 return NGX_HTTP_PARSE_HTTP_TO_HTTPS;
|
|
|
1139 }
|
|
|
1140
|
|
|
1141 if (r->headers_in.connection) {
|
|
|
1142 if (r->headers_in.connection->value.len == 5
|
|
|
1143 && ngx_strcasecmp(r->headers_in.connection->value.data, "close")
|
|
|
1144 == 0)
|
|
|
1145 {
|
|
|
1146 r->headers_in.connection_type = NGX_HTTP_CONNECTION_CLOSE;
|
|
|
1147
|
|
|
1148 } else if (r->headers_in.connection->value.len == 10
|
|
|
1149 && ngx_strcasecmp(r->headers_in.connection->value.data,
|
|
|
1150 "keep-alive") == 0)
|
|
|
1151 {
|
|
|
1152 r->headers_in.connection_type = NGX_HTTP_CONNECTION_KEEP_ALIVE;
|
|
|
1153
|
|
|
1154 if (r->headers_in.keep_alive) {
|
|
|
1155 r->headers_in.keep_alive_n =
|
|
50
|
1156 ngx_atotm(r->headers_in.keep_alive->value.data,
|
|
0
|
1157 r->headers_in.keep_alive->value.len);
|
|
|
1158 }
|
|
|
1159 }
|
|
|
1160 }
|
|
|
1161
|
|
|
1162 if (r->headers_in.user_agent) {
|
|
|
1163
|
|
|
1164 /*
|
|
|
1165 * check some widespread browsers while the headers are still
|
|
|
1166 * in CPU cache
|
|
|
1167 */
|
|
|
1168
|
|
|
1169 user_agent = r->headers_in.user_agent->value.data;
|
|
|
1170
|
|
|
1171 ua = (u_char *) ngx_strstr(user_agent, "MSIE");
|
|
|
1172
|
|
|
1173 if (ua && ua + 8 < user_agent + r->headers_in.user_agent->value.len) {
|
|
|
1174
|
|
|
1175 r->headers_in.msie = 1;
|
|
|
1176
|
|
|
1177 if (ua[4] == ' ' && ua[5] == '4' && ua[6] == '.') {
|
|
|
1178 r->headers_in.msie4 = 1;
|
|
|
1179 }
|
|
|
1180
|
|
|
1181 #if 0
|
|
|
1182 /* MSIE ignores the SSL "close notify" alert */
|
|
22
|
1183 if (c->ssl) {
|
|
|
1184 r->connection->ssl->no_send_shut = 1;
|
|
|
1185 }
|
|
0
|
1186 #endif
|
|
|
1187 }
|
|
|
1188
|
|
|
1189 if (ngx_strstr(user_agent, "Opera")) {
|
|
|
1190 r->headers_in.opera = 1;
|
|
|
1191 r->headers_in.msie = 0;
|
|
|
1192 r->headers_in.msie4 = 0;
|
|
|
1193 }
|
|
|
1194
|
|
|
1195 if (!r->headers_in.msie && !r->headers_in.opera) {
|
|
|
1196
|
|
|
1197 if (ngx_strstr(user_agent, "Gecko/")) {
|
|
|
1198 r->headers_in.gecko = 1;
|
|
|
1199
|
|
|
1200 } else if (ngx_strstr(user_agent, "Konqueror")) {
|
|
|
1201 r->headers_in.konqueror = 1;
|
|
|
1202 }
|
|
|
1203 }
|
|
|
1204 }
|
|
|
1205
|
|
|
1206 return NGX_OK;
|
|
|
1207 }
|
|
|
1208
|
|
|
1209
|
|
50
|
1210 static ngx_int_t
|
|
|
1211 ngx_http_find_virtual_server(ngx_http_request_t *r)
|
|
26
|
1212 {
|
|
|
1213 ngx_int_t rc;
|
|
|
1214 ngx_uint_t i, n, key, found;
|
|
|
1215 ngx_http_server_name_t *name;
|
|
|
1216 ngx_http_core_main_conf_t *cmcf;
|
|
|
1217 ngx_http_core_srv_conf_t *cscf;
|
|
|
1218 ngx_http_core_loc_conf_t *clcf;
|
|
|
1219
|
|
|
1220 if (r->virtual_names->hash) {
|
|
|
1221 cmcf = ngx_http_get_module_main_conf(r, ngx_http_core_module);
|
|
|
1222
|
|
|
1223 ngx_http_server_names_hash_key(key,
|
|
|
1224 r->headers_in.host->value.data,
|
|
|
1225 r->headers_in.host_name_len,
|
|
|
1226 cmcf->server_names_hash);
|
|
|
1227
|
|
|
1228 name = r->virtual_names->hash[key].elts;
|
|
|
1229 n = r->virtual_names->hash[key].nelts;
|
|
|
1230
|
|
|
1231 } else {
|
|
|
1232 name = r->virtual_names->names.elts;
|
|
|
1233 n = r->virtual_names->names.nelts;
|
|
|
1234 }
|
|
|
1235
|
|
|
1236 found = 0;
|
|
|
1237
|
|
|
1238 for (i = 0; i < n; i++) {
|
|
|
1239
|
|
|
1240 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1241 "server name: %V", &name[i].name);
|
|
|
1242
|
|
|
1243 if (r->headers_in.host_name_len != name[i].name.len) {
|
|
|
1244 continue;
|
|
|
1245 }
|
|
|
1246
|
|
|
1247 rc = ngx_strncmp(r->headers_in.host->value.data,
|
|
|
1248 name[i].name.data, name[i].name.len);
|
|
|
1249
|
|
|
1250 if (rc == 0) {
|
|
|
1251 r->server_name = name[i].name;
|
|
|
1252
|
|
|
1253 found = 1;
|
|
|
1254 break;
|
|
|
1255 }
|
|
|
1256
|
|
|
1257 if (rc < 0) {
|
|
|
1258 /* the server names are lexicographically sorted */
|
|
|
1259 break;
|
|
|
1260 }
|
|
|
1261 }
|
|
|
1262
|
|
|
1263 if (!found && r->virtual_names->wildcards.nelts) {
|
|
|
1264
|
|
|
1265 name = r->virtual_names->wildcards.elts;
|
|
|
1266 for (i = 0; i < r->virtual_names->wildcards.nelts; i++) {
|
|
|
1267
|
|
|
1268 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1269 "server name: %V", &name[i].name);
|
|
|
1270
|
|
|
1271 if (r->headers_in.host_name_len <= name[i].name.len) {
|
|
|
1272 continue;
|
|
|
1273 }
|
|
|
1274
|
|
|
1275 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1276 "server name: %s",
|
|
|
1277 r->headers_in.host->value.data
|
|
|
1278 + (r->headers_in.host_name_len - name[i].name.len));
|
|
|
1279
|
|
|
1280 if (ngx_strncmp(r->headers_in.host->value.data
|
|
|
1281 + (r->headers_in.host_name_len - name[i].name.len),
|
|
|
1282 name[i].name.data, name[i].name.len) == 0)
|
|
|
1283 {
|
|
|
1284 r->server_name.len = r->headers_in.host_name_len;
|
|
|
1285 r->server_name.data = r->headers_in.host->value.data;
|
|
|
1286
|
|
|
1287 found = 1;
|
|
|
1288 break;
|
|
|
1289 }
|
|
|
1290 }
|
|
|
1291 }
|
|
|
1292
|
|
|
1293 if (found) {
|
|
|
1294 r->srv_conf = name[i].core_srv_conf->ctx->srv_conf;
|
|
|
1295 r->loc_conf = name[i].core_srv_conf->ctx->loc_conf;
|
|
|
1296
|
|
|
1297 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
1298 r->connection->log->file = clcf->err_log->file;
|
|
|
1299
|
|
|
1300 if (!(r->connection->log->log_level & NGX_LOG_DEBUG_CONNECTION)) {
|
|
|
1301 r->connection->log->log_level = clcf->err_log->log_level;
|
|
|
1302 }
|
|
|
1303
|
|
|
1304 return NGX_OK;
|
|
|
1305 }
|
|
|
1306
|
|
|
1307 cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
|
|
|
1308
|
|
|
1309 if (cscf->restrict_host_names != NGX_HTTP_RESTRICT_HOST_OFF) {
|
|
|
1310 return NGX_ERROR;
|
|
|
1311 }
|
|
|
1312
|
|
|
1313 return NGX_OK;
|
|
|
1314 }
|
|
|
1315
|
|
|
1316
|
|
50
|
1317 void
|
|
|
1318 ngx_http_finalize_request(ngx_http_request_t *r, int rc)
|
|
0
|
1319 {
|
|
|
1320 ngx_http_core_loc_conf_t *clcf;
|
|
|
1321
|
|
26
|
1322 /* r may be already destroyed when rc == NGX_DONE */
|
|
0
|
1323
|
|
|
1324 if (rc == NGX_DONE || r->main) {
|
|
|
1325 return;
|
|
|
1326 }
|
|
|
1327
|
|
|
1328 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1329 "http finalize request: %d", rc);
|
|
|
1330
|
|
|
1331 if (rc >= NGX_HTTP_SPECIAL_RESPONSE) {
|
|
|
1332
|
|
|
1333 if (r->connection->read->timer_set) {
|
|
|
1334 ngx_del_timer(r->connection->read);
|
|
|
1335 }
|
|
|
1336
|
|
|
1337 if (r->connection->write->timer_set) {
|
|
|
1338 ngx_del_timer(r->connection->write);
|
|
|
1339 }
|
|
|
1340
|
|
|
1341 if (rc == NGX_HTTP_CLIENT_CLOSED_REQUEST || r->closed) {
|
|
|
1342 ngx_http_close_request(r, 0);
|
|
|
1343 ngx_http_close_connection(r->connection);
|
|
|
1344 return;
|
|
|
1345 }
|
|
|
1346
|
|
|
1347 ngx_http_finalize_request(r, ngx_http_special_response_handler(r, rc));
|
|
|
1348
|
|
|
1349 return;
|
|
|
1350
|
|
|
1351 } else if (rc == NGX_ERROR) {
|
|
|
1352 ngx_http_close_request(r, 0);
|
|
|
1353 ngx_http_close_connection(r->connection);
|
|
|
1354 return;
|
|
|
1355
|
|
|
1356 } else if (rc == NGX_AGAIN) {
|
|
|
1357 ngx_http_set_write_handler(r);
|
|
|
1358 return;
|
|
|
1359 }
|
|
|
1360
|
|
|
1361 if (r->connection->read->timer_set) {
|
|
|
1362 ngx_del_timer(r->connection->read);
|
|
|
1363 }
|
|
|
1364
|
|
|
1365 if (r->connection->write->timer_set) {
|
|
|
1366 r->connection->write->delayed = 0;
|
|
|
1367 ngx_del_timer(r->connection->write);
|
|
|
1368 }
|
|
|
1369
|
|
|
1370 if (r->connection->read->pending_eof) {
|
|
22
|
1371 #if (NGX_HAVE_KQUEUE)
|
|
0
|
1372 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log,
|
|
|
1373 r->connection->read->kq_errno,
|
|
|
1374 "kevent() reported about an closed connection");
|
|
|
1375 #endif
|
|
|
1376 ngx_http_close_request(r, 0);
|
|
|
1377 ngx_http_close_connection(r->connection);
|
|
|
1378 return;
|
|
|
1379 }
|
|
|
1380
|
|
|
1381 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
1382
|
|
|
1383 if (!ngx_terminate
|
|
|
1384 && !ngx_exiting
|
|
|
1385 && r->keepalive != 0
|
|
|
1386 && clcf->keepalive_timeout > 0)
|
|
|
1387 {
|
|
|
1388 ngx_http_set_keepalive(r);
|
|
|
1389 return;
|
|
|
1390
|
|
|
1391 } else if (r->lingering_close && clcf->lingering_timeout > 0) {
|
|
|
1392 ngx_http_set_lingering_close(r);
|
|
|
1393 return;
|
|
|
1394 }
|
|
|
1395
|
|
|
1396 ngx_http_close_request(r, 0);
|
|
|
1397 ngx_http_close_connection(r->connection);
|
|
|
1398 }
|
|
|
1399
|
|
|
1400
|
|
50
|
1401 static void
|
|
|
1402 ngx_http_set_write_handler(ngx_http_request_t *r)
|
|
0
|
1403 {
|
|
|
1404 ngx_event_t *wev;
|
|
|
1405 ngx_http_core_loc_conf_t *clcf;
|
|
|
1406
|
|
|
1407 wev = r->connection->write;
|
|
|
1408 wev->event_handler = ngx_http_writer;
|
|
|
1409
|
|
|
1410 r->http_state = NGX_HTTP_WRITING_REQUEST_STATE;
|
|
|
1411
|
|
|
1412 if (wev->ready && wev->delayed) {
|
|
|
1413 return;
|
|
|
1414 }
|
|
|
1415
|
|
|
1416 clcf = ngx_http_get_module_loc_conf(r->main ? r->main : r,
|
|
|
1417 ngx_http_core_module);
|
|
|
1418 if (!wev->delayed) {
|
|
|
1419 ngx_add_timer(wev, clcf->send_timeout);
|
|
|
1420 }
|
|
|
1421
|
|
2
|
1422 if (ngx_handle_write_event(wev, clcf->send_lowat) == NGX_ERROR) {
|
|
0
|
1423 ngx_http_close_request(r, 0);
|
|
|
1424 ngx_http_close_connection(r->connection);
|
|
|
1425 }
|
|
|
1426
|
|
|
1427 return;
|
|
|
1428 }
|
|
|
1429
|
|
|
1430
|
|
50
|
1431 void
|
|
|
1432 ngx_http_writer(ngx_event_t *wev)
|
|
0
|
1433 {
|
|
|
1434 int rc;
|
|
|
1435 ngx_connection_t *c;
|
|
|
1436 ngx_http_request_t *r;
|
|
|
1437 ngx_http_core_loc_conf_t *clcf;
|
|
|
1438
|
|
|
1439 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, wev->log, 0, "http writer handler");
|
|
|
1440
|
|
|
1441 c = wev->data;
|
|
|
1442 r = c->data;
|
|
|
1443
|
|
|
1444 if (wev->timedout) {
|
|
|
1445 if (!wev->delayed) {
|
|
|
1446 ngx_http_client_error(r, 0, NGX_HTTP_REQUEST_TIME_OUT);
|
|
|
1447 return;
|
|
|
1448 }
|
|
|
1449
|
|
|
1450 wev->timedout = 0;
|
|
|
1451 wev->delayed = 0;
|
|
|
1452
|
|
|
1453 if (!wev->ready) {
|
|
|
1454 clcf = ngx_http_get_module_loc_conf(r->main ? r->main : r,
|
|
|
1455 ngx_http_core_module);
|
|
|
1456 ngx_add_timer(wev, clcf->send_timeout);
|
|
|
1457
|
|
2
|
1458 if (ngx_handle_write_event(wev, clcf->send_lowat) == NGX_ERROR) {
|
|
0
|
1459 ngx_http_close_request(r, 0);
|
|
|
1460 ngx_http_close_connection(r->connection);
|
|
|
1461 }
|
|
|
1462
|
|
|
1463 return;
|
|
|
1464 }
|
|
|
1465
|
|
|
1466 } else {
|
|
|
1467 if (wev->delayed) {
|
|
|
1468 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, wev->log, 0,
|
|
|
1469 "http writer delayed");
|
|
|
1470
|
|
|
1471 clcf = ngx_http_get_module_loc_conf(r->main ? r->main : r,
|
|
|
1472 ngx_http_core_module);
|
|
2
|
1473
|
|
|
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
|
|
|
1483 rc = ngx_http_output_filter(r, NULL);
|
|
|
1484
|
|
|
1485 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
|
1486 "http writer output filter: %d", rc);
|
|
|
1487
|
|
|
1488 if (rc == NGX_AGAIN) {
|
|
|
1489 clcf = ngx_http_get_module_loc_conf(r->main ? r->main : r,
|
|
|
1490 ngx_http_core_module);
|
|
|
1491 if (!wev->ready && !wev->delayed) {
|
|
|
1492 ngx_add_timer(wev, clcf->send_timeout);
|
|
|
1493 }
|
|
|
1494
|
|
2
|
1495 if (ngx_handle_write_event(wev, clcf->send_lowat) == NGX_ERROR) {
|
|
0
|
1496 ngx_http_close_request(r, 0);
|
|
|
1497 ngx_http_close_connection(r->connection);
|
|
|
1498 }
|
|
|
1499
|
|
|
1500 return;
|
|
|
1501 }
|
|
|
1502
|
|
|
1503 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "http writer done");
|
|
|
1504
|
|
|
1505 ngx_http_finalize_request(r, rc);
|
|
|
1506 }
|
|
|
1507
|
|
|
1508
|
|
50
|
1509 static void
|
|
|
1510 ngx_http_block_read(ngx_event_t *rev)
|
|
0
|
1511 {
|
|
|
1512 ngx_connection_t *c;
|
|
|
1513 ngx_http_request_t *r;
|
|
|
1514
|
|
|
1515 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, rev->log, 0, "http read blocked");
|
|
|
1516
|
|
|
1517 /* aio does not call this handler */
|
|
|
1518
|
|
|
1519 if ((ngx_event_flags & NGX_USE_LEVEL_EVENT) && rev->active) {
|
|
|
1520 if (ngx_del_event(rev, NGX_READ_EVENT, 0) == NGX_ERROR) {
|
|
|
1521 c = rev->data;
|
|
|
1522 r = c->data;
|
|
|
1523 ngx_http_close_request(r, 0);
|
|
|
1524 ngx_http_close_connection(c);
|
|
|
1525 }
|
|
|
1526 }
|
|
|
1527 }
|
|
|
1528
|
|
|
1529
|
|
50
|
1530 ngx_int_t
|
|
|
1531 ngx_http_discard_body(ngx_http_request_t *r)
|
|
0
|
1532 {
|
|
|
1533 ssize_t size;
|
|
|
1534 ngx_event_t *rev;
|
|
|
1535
|
|
|
1536 rev = r->connection->read;
|
|
|
1537
|
|
|
1538 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, rev->log, 0, "http set discard body");
|
|
|
1539
|
|
|
1540 if (rev->timer_set) {
|
|
|
1541 ngx_del_timer(rev);
|
|
|
1542 }
|
|
|
1543
|
|
|
1544 if (r->headers_in.content_length_n <= 0) {
|
|
|
1545 return NGX_OK;
|
|
|
1546 }
|
|
|
1547
|
|
|
1548 size = r->header_in->last - r->header_in->pos;
|
|
|
1549
|
|
|
1550 if (size) {
|
|
|
1551 if (r->headers_in.content_length_n > size) {
|
|
|
1552 r->headers_in.content_length_n -= size;
|
|
|
1553
|
|
|
1554 } else {
|
|
|
1555 r->header_in->pos += r->headers_in.content_length_n;
|
|
|
1556 r->headers_in.content_length_n = 0;
|
|
|
1557 return NGX_OK;
|
|
|
1558 }
|
|
|
1559 }
|
|
|
1560
|
|
|
1561 rev->event_handler = ngx_http_read_discarded_body_event;
|
|
|
1562
|
|
|
1563 if (ngx_handle_level_read_event(rev) == NGX_ERROR) {
|
|
|
1564 return NGX_HTTP_INTERNAL_SERVER_ERROR;
|
|
|
1565 }
|
|
|
1566
|
|
|
1567 return ngx_http_read_discarded_body(r);
|
|
|
1568 }
|
|
|
1569
|
|
|
1570
|
|
50
|
1571 static void
|
|
|
1572 ngx_http_read_discarded_body_event(ngx_event_t *rev)
|
|
0
|
1573 {
|
|
|
1574 ngx_int_t rc;
|
|
|
1575 ngx_connection_t *c;
|
|
|
1576 ngx_http_request_t *r;
|
|
|
1577
|
|
|
1578 c = rev->data;
|
|
|
1579 r = c->data;
|
|
|
1580
|
|
|
1581 rc = ngx_http_read_discarded_body(r);
|
|
|
1582
|
|
|
1583 if (rc == NGX_AGAIN) {
|
|
|
1584 if (ngx_handle_level_read_event(rev) == NGX_ERROR) {
|
|
|
1585 ngx_http_close_request(r, rc);
|
|
|
1586 ngx_http_close_connection(c);
|
|
|
1587 return;
|
|
|
1588 }
|
|
|
1589 }
|
|
|
1590
|
|
|
1591 if (rc != NGX_OK) {
|
|
|
1592 ngx_http_close_request(r, rc);
|
|
|
1593 ngx_http_close_connection(c);
|
|
|
1594 }
|
|
|
1595 }
|
|
|
1596
|
|
|
1597
|
|
50
|
1598 static ngx_int_t
|
|
|
1599 ngx_http_read_discarded_body(ngx_http_request_t *r)
|
|
0
|
1600 {
|
|
|
1601 ssize_t size, n;
|
|
|
1602 u_char buffer[NGX_HTTP_DISCARD_BUFFER_SIZE];
|
|
|
1603
|
|
|
1604 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1605 "http read discarded body");
|
|
|
1606
|
|
|
1607 if (r->headers_in.content_length_n == 0) {
|
|
|
1608 return NGX_OK;
|
|
|
1609 }
|
|
|
1610
|
|
|
1611
|
|
|
1612 size = r->headers_in.content_length_n;
|
|
|
1613
|
|
|
1614 if (size > NGX_HTTP_DISCARD_BUFFER_SIZE) {
|
|
|
1615 size = NGX_HTTP_DISCARD_BUFFER_SIZE;
|
|
|
1616 }
|
|
|
1617
|
|
|
1618 n = r->connection->recv(r->connection, buffer, size);
|
|
|
1619
|
|
|
1620 if (n == NGX_ERROR) {
|
|
|
1621
|
|
|
1622 r->closed = 1;
|
|
|
1623
|
|
|
1624 /*
|
|
|
1625 * if a client request body is discarded then we already set
|
|
|
1626 * some HTTP response code for client and we can ignore the error
|
|
|
1627 */
|
|
|
1628
|
|
|
1629 return NGX_OK;
|
|
|
1630 }
|
|
|
1631
|
|
|
1632 if (n == NGX_AGAIN) {
|
|
|
1633 return NGX_AGAIN;
|
|
|
1634 }
|
|
|
1635
|
|
|
1636 r->headers_in.content_length_n -= n;
|
|
|
1637
|
|
|
1638 return NGX_OK;
|
|
|
1639 }
|
|
|
1640
|
|
|
1641
|
|
50
|
1642 static void
|
|
|
1643 ngx_http_set_keepalive(ngx_http_request_t *r)
|
|
0
|
1644 {
|
|
2
|
1645 int tcp_nodelay;
|
|
0
|
1646 ngx_int_t i;
|
|
|
1647 ngx_buf_t *b, *f;
|
|
|
1648 ngx_event_t *rev, *wev;
|
|
|
1649 ngx_connection_t *c;
|
|
|
1650 ngx_http_connection_t *hc;
|
|
|
1651 ngx_http_core_srv_conf_t *cscf;
|
|
|
1652 ngx_http_core_loc_conf_t *clcf;
|
|
|
1653
|
|
|
1654 c = r->connection;
|
|
|
1655 rev = c->read;
|
|
|
1656
|
|
|
1657 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "set http keepalive handler");
|
|
|
1658
|
|
32
|
1659 c->log->action = "closing request";
|
|
0
|
1660
|
|
|
1661 hc = r->http_connection;
|
|
|
1662 b = r->header_in;
|
|
|
1663
|
|
|
1664 if (b->pos < b->last) {
|
|
|
1665
|
|
|
1666 /* the pipelined request */
|
|
|
1667
|
|
|
1668 if (b != c->buffer) {
|
|
|
1669
|
|
4
|
1670 /*
|
|
|
1671 * If the large header buffers were allocated while the previous
|
|
|
1672 * request processing then we do not use c->buffer for
|
|
|
1673 * the pipelined request (see ngx_http_init_request()).
|
|
|
1674 *
|
|
|
1675 * Now we would move the large header buffers to the free list.
|
|
|
1676 */
|
|
0
|
1677
|
|
|
1678 cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
|
|
|
1679
|
|
|
1680 if (hc->free == NULL) {
|
|
|
1681 hc->free = ngx_palloc(c->pool,
|
|
|
1682 cscf->large_client_header_buffers.num * sizeof(ngx_buf_t *));
|
|
|
1683
|
|
|
1684 if (hc->free == NULL) {
|
|
26
|
1685 ngx_http_close_request(r, 0);
|
|
0
|
1686 ngx_http_close_connection(c);
|
|
|
1687 return;
|
|
|
1688 }
|
|
|
1689 }
|
|
|
1690
|
|
|
1691 for (i = 0; i < hc->nbusy - 1; i++) {
|
|
|
1692 f = hc->busy[i];
|
|
|
1693 hc->free[hc->nfree++] = f;
|
|
|
1694 f->pos = f->start;
|
|
|
1695 f->last = f->start;
|
|
|
1696 }
|
|
|
1697
|
|
|
1698 hc->busy[0] = b;
|
|
|
1699 hc->nbusy = 1;
|
|
|
1700 }
|
|
|
1701 }
|
|
|
1702
|
|
26
|
1703 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
1704
|
|
0
|
1705 ngx_http_close_request(r, 0);
|
|
|
1706 c->data = hc;
|
|
|
1707
|
|
|
1708 ngx_add_timer(rev, clcf->keepalive_timeout);
|
|
|
1709
|
|
|
1710 if (ngx_handle_level_read_event(rev) == NGX_ERROR) {
|
|
|
1711 ngx_http_close_connection(c);
|
|
|
1712 return;
|
|
|
1713 }
|
|
|
1714
|
|
|
1715 wev = c->write;
|
|
|
1716 wev->event_handler = ngx_http_empty_handler;
|
|
|
1717
|
|
|
1718 if (b->pos < b->last) {
|
|
|
1719
|
|
|
1720 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "pipelined request");
|
|
|
1721
|
|
|
1722 hc->pipeline = 1;
|
|
32
|
1723 c->log->action = "reading client pipelined request line";
|
|
0
|
1724 ngx_http_init_request(rev);
|
|
|
1725 return;
|
|
|
1726 }
|
|
|
1727
|
|
|
1728 hc->pipeline = 0;
|
|
|
1729
|
|
4
|
1730 /*
|
|
|
1731 * To keep a memory footprint as small as possible for an idle
|
|
|
1732 * keepalive connection we try to free the ngx_http_request_t and
|
|
|
1733 * c->buffer's memory if they were allocated outside the c->pool.
|
|
|
1734 * The large header buffers are always allocated outside the c->pool and
|
|
|
1735 * are freed too.
|
|
|
1736 */
|
|
|
1737
|
|
0
|
1738 if (ngx_pfree(c->pool, r) == NGX_OK) {
|
|
|
1739 hc->request = NULL;
|
|
|
1740 }
|
|
|
1741
|
|
|
1742 b = c->buffer;
|
|
|
1743
|
|
|
1744 if (ngx_pfree(c->pool, b->start) == NGX_OK) {
|
|
4
|
1745
|
|
|
1746 /*
|
|
|
1747 * the special note for ngx_http_keepalive_handler() that
|
|
|
1748 * c->buffer's memory was freed
|
|
|
1749 */
|
|
|
1750
|
|
0
|
1751 b->pos = NULL;
|
|
|
1752
|
|
|
1753 } else {
|
|
|
1754 b->pos = b->start;
|
|
|
1755 b->last = b->start;
|
|
|
1756 }
|
|
|
1757
|
|
10
|
1758 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, c->log, 0, "hc free: %p %d",
|
|
0
|
1759 hc->free, hc->nfree);
|
|
|
1760
|
|
|
1761 if (hc->free) {
|
|
|
1762 for (i = 0; i < hc->nfree; i++) {
|
|
|
1763 ngx_pfree(c->pool, hc->free[i]);
|
|
|
1764 hc->free[i] = NULL;
|
|
|
1765 }
|
|
|
1766
|
|
|
1767 hc->nfree = 0;
|
|
|
1768 }
|
|
|
1769
|
|
10
|
1770 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, c->log, 0, "hc busy: %p %d",
|
|
0
|
1771 hc->busy, hc->nbusy);
|
|
|
1772
|
|
|
1773 if (hc->busy) {
|
|
|
1774 for (i = 0; i < hc->nbusy; i++) {
|
|
|
1775 ngx_pfree(c->pool, hc->busy[i]);
|
|
|
1776 hc->busy[i] = NULL;
|
|
|
1777 }
|
|
|
1778
|
|
|
1779 hc->nbusy = 0;
|
|
|
1780 }
|
|
|
1781
|
|
|
1782 rev->event_handler = ngx_http_keepalive_handler;
|
|
|
1783
|
|
|
1784 if (wev->active) {
|
|
4
|
1785 if (ngx_event_flags & NGX_USE_KQUEUE_EVENT) {
|
|
0
|
1786 if (ngx_del_event(wev, NGX_WRITE_EVENT, NGX_DISABLE_EVENT)
|
|
|
1787 == NGX_ERROR)
|
|
|
1788 {
|
|
|
1789 ngx_http_close_connection(c);
|
|
|
1790 return;
|
|
|
1791 }
|
|
|
1792
|
|
|
1793 } else if (ngx_event_flags & NGX_USE_LEVEL_EVENT) {
|
|
|
1794 if (ngx_del_event(wev, NGX_WRITE_EVENT, 0) == NGX_ERROR) {
|
|
|
1795 ngx_http_close_connection(c);
|
|
|
1796 return;
|
|
|
1797 }
|
|
|
1798 }
|
|
|
1799 }
|
|
|
1800
|
|
32
|
1801 c->log->action = "keepalive";
|
|
0
|
1802
|
|
|
1803 if (c->tcp_nopush == NGX_TCP_NOPUSH_SET) {
|
|
50
|
1804 if (ngx_tcp_push(c->fd) == -1) {
|
|
0
|
1805 ngx_connection_error(c, ngx_socket_errno, ngx_tcp_push_n " failed");
|
|
|
1806 ngx_http_close_connection(c);
|
|
|
1807 return;
|
|
|
1808 }
|
|
2
|
1809
|
|
0
|
1810 c->tcp_nopush = NGX_TCP_NOPUSH_UNSET;
|
|
22
|
1811 tcp_nodelay = ngx_tcp_nodelay_and_tcp_nopush ? 1 : 0;
|
|
2
|
1812
|
|
|
1813 } else {
|
|
22
|
1814 tcp_nodelay = 1;
|
|
|
1815 }
|
|
|
1816
|
|
32
|
1817 if (tcp_nodelay
|
|
|
1818 && clcf->tcp_nodelay
|
|
|
1819 && c->tcp_nodelay == NGX_TCP_NODELAY_UNSET)
|
|
|
1820 {
|
|
22
|
1821 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "tcp_nodelay");
|
|
|
1822
|
|
|
1823 if (setsockopt(c->fd, IPPROTO_TCP, TCP_NODELAY,
|
|
|
1824 (const void *) &tcp_nodelay, sizeof(int)) == -1)
|
|
|
1825 {
|
|
|
1826 ngx_connection_error(c, ngx_socket_errno,
|
|
|
1827 "setsockopt(TCP_NODELAY) failed");
|
|
|
1828 ngx_http_close_connection(c);
|
|
|
1829 return;
|
|
2
|
1830 }
|
|
22
|
1831
|
|
32
|
1832 c->tcp_nodelay = NGX_TCP_NODELAY_SET;
|
|
0
|
1833 }
|
|
|
1834
|
|
|
1835 #if 0
|
|
4
|
1836 /* if ngx_http_request_t was freed then we need some other place */
|
|
0
|
1837 r->http_state = NGX_HTTP_KEEPALIVE_STATE;
|
|
|
1838 #endif
|
|
|
1839
|
|
|
1840 if (rev->ready) {
|
|
|
1841 ngx_http_keepalive_handler(rev);
|
|
|
1842 }
|
|
|
1843 }
|
|
|
1844
|
|
|
1845
|
|
50
|
1846 static void
|
|
|
1847 ngx_http_keepalive_handler(ngx_event_t *rev)
|
|
0
|
1848 {
|
|
50
|
1849 size_t size;
|
|
|
1850 ssize_t n;
|
|
|
1851 ngx_buf_t *b;
|
|
|
1852 ngx_connection_t *c;
|
|
0
|
1853
|
|
|
1854 c = rev->data;
|
|
|
1855
|
|
|
1856 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "http keepalive handler");
|
|
|
1857
|
|
|
1858 if (rev->timedout) {
|
|
|
1859 ngx_http_close_connection(c);
|
|
|
1860 return;
|
|
|
1861 }
|
|
|
1862
|
|
18
|
1863 #if (NGX_HAVE_KQUEUE)
|
|
0
|
1864
|
|
4
|
1865 if (ngx_event_flags & NGX_USE_KQUEUE_EVENT) {
|
|
0
|
1866 if (rev->pending_eof) {
|
|
32
|
1867 c->log->handler = NULL;
|
|
0
|
1868 ngx_log_error(NGX_LOG_INFO, c->log, rev->kq_errno,
|
|
10
|
1869 "kevent() reported that client %V closed "
|
|
32
|
1870 "keepalive connection", &c->addr_text);
|
|
22
|
1871 #if (NGX_HTTP_SSL)
|
|
|
1872 if (c->ssl) {
|
|
|
1873 c->ssl->no_send_shut = 1;
|
|
|
1874 }
|
|
|
1875 #endif
|
|
0
|
1876 ngx_http_close_connection(c);
|
|
|
1877 return;
|
|
|
1878 }
|
|
|
1879 }
|
|
|
1880
|
|
|
1881 #endif
|
|
|
1882
|
|
|
1883 b = c->buffer;
|
|
|
1884 size = b->end - b->start;
|
|
|
1885
|
|
|
1886 if (b->pos == NULL) {
|
|
4
|
1887
|
|
|
1888 /*
|
|
|
1889 * The c->buffer's memory was freed by ngx_http_set_keepalive().
|
|
|
1890 * However, the c->buffer->start and c->buffer->end were not changed
|
|
|
1891 * to keep the buffer size.
|
|
|
1892 */
|
|
|
1893
|
|
50
|
1894 b->pos = ngx_palloc(c->pool, size);
|
|
|
1895 if (b->pos == NULL) {
|
|
0
|
1896 ngx_http_close_connection(c);
|
|
|
1897 return;
|
|
|
1898 }
|
|
|
1899
|
|
|
1900 b->start = b->pos;
|
|
|
1901 b->last = b->pos;
|
|
|
1902 b->end = b->pos + size;
|
|
|
1903 }
|
|
|
1904
|
|
|
1905 /*
|
|
|
1906 * MSIE closes a keepalive connection with RST flag
|
|
|
1907 * so we ignore ECONNRESET here.
|
|
|
1908 */
|
|
|
1909
|
|
|
1910 c->log_error = NGX_ERROR_IGNORE_ECONNRESET;
|
|
|
1911 ngx_set_socket_errno(0);
|
|
|
1912
|
|
|
1913 n = c->recv(c, b->last, size);
|
|
|
1914 c->log_error = NGX_ERROR_INFO;
|
|
|
1915
|
|
|
1916 if (n == NGX_AGAIN) {
|
|
24
|
1917 if (ngx_handle_level_read_event(rev) == NGX_ERROR) {
|
|
|
1918 ngx_http_close_connection(c);
|
|
|
1919 }
|
|
|
1920
|
|
0
|
1921 return;
|
|
|
1922 }
|
|
|
1923
|
|
|
1924 if (n == NGX_ERROR) {
|
|
|
1925 ngx_http_close_connection(c);
|
|
|
1926 return;
|
|
|
1927 }
|
|
|
1928
|
|
32
|
1929 c->log->handler = NULL;
|
|
0
|
1930
|
|
|
1931 if (n == 0) {
|
|
|
1932 ngx_log_error(NGX_LOG_INFO, c->log, ngx_socket_errno,
|
|
32
|
1933 "client %V closed keepalive connection", &c->addr_text);
|
|
0
|
1934 ngx_http_close_connection(c);
|
|
|
1935 return;
|
|
|
1936 }
|
|
|
1937
|
|
|
1938 b->last += n;
|
|
32
|
1939
|
|
|
1940 c->log->handler = ngx_http_log_error;
|
|
|
1941 c->log->action = "reading client request line";
|
|
0
|
1942
|
|
|
1943 ngx_http_init_request(rev);
|
|
|
1944 }
|
|
|
1945
|
|
|
1946
|
|
50
|
1947 static void
|
|
|
1948 ngx_http_set_lingering_close(ngx_http_request_t *r)
|
|
0
|
1949 {
|
|
|
1950 ngx_event_t *rev, *wev;
|
|
|
1951 ngx_connection_t *c;
|
|
|
1952 ngx_http_core_loc_conf_t *clcf;
|
|
|
1953
|
|
|
1954 c = r->connection;
|
|
|
1955
|
|
|
1956 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
1957
|
|
|
1958 rev = c->read;
|
|
|
1959 rev->event_handler = ngx_http_lingering_close_handler;
|
|
|
1960
|
|
|
1961 r->lingering_time = ngx_time() + clcf->lingering_time / 1000;
|
|
|
1962 ngx_add_timer(rev, clcf->lingering_timeout);
|
|
|
1963
|
|
|
1964 if (ngx_handle_level_read_event(rev) == NGX_ERROR) {
|
|
|
1965 ngx_http_close_request(r, 0);
|
|
|
1966 ngx_http_close_connection(c);
|
|
|
1967 return;
|
|
|
1968 }
|
|
|
1969
|
|
|
1970 wev = c->write;
|
|
|
1971 wev->event_handler = ngx_http_empty_handler;
|
|
|
1972
|
|
|
1973 if (wev->active) {
|
|
4
|
1974 if (ngx_event_flags & NGX_USE_KQUEUE_EVENT) {
|
|
0
|
1975 if (ngx_del_event(wev, NGX_WRITE_EVENT, NGX_DISABLE_EVENT)
|
|
|
1976 == NGX_ERROR)
|
|
|
1977 {
|
|
26
|
1978 ngx_http_close_request(r, 0);
|
|
0
|
1979 ngx_http_close_connection(c);
|
|
|
1980 return;
|
|
|
1981 }
|
|
|
1982
|
|
|
1983 } else if (ngx_event_flags & NGX_USE_LEVEL_EVENT) {
|
|
|
1984 if (ngx_del_event(wev, NGX_WRITE_EVENT, 0) == NGX_ERROR) {
|
|
26
|
1985 ngx_http_close_request(r, 0);
|
|
0
|
1986 ngx_http_close_connection(c);
|
|
|
1987 return;
|
|
|
1988 }
|
|
|
1989 }
|
|
|
1990 }
|
|
|
1991
|
|
|
1992 if (ngx_shutdown_socket(c->fd, NGX_WRITE_SHUTDOWN) == -1) {
|
|
|
1993 ngx_connection_error(c, ngx_socket_errno,
|
|
|
1994 ngx_shutdown_socket_n " failed");
|
|
|
1995 ngx_http_close_request(r, 0);
|
|
|
1996 ngx_http_close_connection(c);
|
|
|
1997 return;
|
|
|
1998 }
|
|
|
1999
|
|
|
2000 if (rev->ready) {
|
|
|
2001 ngx_http_lingering_close_handler(rev);
|
|
|
2002 }
|
|
|
2003 }
|
|
|
2004
|
|
|
2005
|
|
50
|
2006 static void
|
|
|
2007 ngx_http_lingering_close_handler(ngx_event_t *rev)
|
|
0
|
2008 {
|
|
|
2009 ssize_t n;
|
|
|
2010 ngx_msec_t timer;
|
|
|
2011 ngx_connection_t *c;
|
|
|
2012 ngx_http_request_t *r;
|
|
|
2013 ngx_http_core_loc_conf_t *clcf;
|
|
|
2014 u_char buffer[NGX_HTTP_LINGERING_BUFFER_SIZE];
|
|
|
2015
|
|
|
2016 c = rev->data;
|
|
|
2017 r = c->data;
|
|
|
2018
|
|
|
2019 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
|
2020 "http lingering close handler");
|
|
|
2021
|
|
|
2022 if (rev->timedout) {
|
|
|
2023 ngx_http_close_request(r, 0);
|
|
|
2024 ngx_http_close_connection(c);
|
|
|
2025 return;
|
|
|
2026 }
|
|
|
2027
|
|
|
2028 timer = r->lingering_time - ngx_time();
|
|
|
2029 if (timer <= 0) {
|
|
|
2030 ngx_http_close_request(r, 0);
|
|
|
2031 ngx_http_close_connection(c);
|
|
|
2032 return;
|
|
|
2033 }
|
|
|
2034
|
|
|
2035 do {
|
|
|
2036 n = c->recv(c, buffer, NGX_HTTP_LINGERING_BUFFER_SIZE);
|
|
|
2037
|
|
|
2038 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0, "lingering read: %d", n);
|
|
|
2039
|
|
|
2040 if (n == NGX_ERROR || n == 0) {
|
|
|
2041 ngx_http_close_request(r, 0);
|
|
|
2042 ngx_http_close_connection(c);
|
|
|
2043 return;
|
|
|
2044 }
|
|
|
2045
|
|
|
2046 } while (rev->ready);
|
|
|
2047
|
|
24
|
2048 if (ngx_handle_level_read_event(rev) == NGX_ERROR) {
|
|
26
|
2049 ngx_http_close_request(r, 0);
|
|
24
|
2050 ngx_http_close_connection(c);
|
|
|
2051 return;
|
|
|
2052 }
|
|
|
2053
|
|
0
|
2054 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
2055
|
|
|
2056 timer *= 1000;
|
|
|
2057
|
|
|
2058 if (timer > clcf->lingering_timeout) {
|
|
|
2059 timer = clcf->lingering_timeout;
|
|
|
2060 }
|
|
|
2061
|
|
|
2062 ngx_add_timer(rev, timer);
|
|
|
2063 }
|
|
|
2064
|
|
|
2065
|
|
50
|
2066 void
|
|
|
2067 ngx_http_empty_handler(ngx_event_t *wev)
|
|
0
|
2068 {
|
|
|
2069 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, wev->log, 0, "http empty handler");
|
|
|
2070
|
|
|
2071 return;
|
|
|
2072 }
|
|
|
2073
|
|
|
2074
|
|
50
|
2075 ngx_int_t
|
|
|
2076 ngx_http_send_last(ngx_http_request_t *r)
|
|
0
|
2077 {
|
|
|
2078 ngx_buf_t *b;
|
|
|
2079 ngx_chain_t out;
|
|
|
2080
|
|
50
|
2081 b = ngx_calloc_buf(r->pool);
|
|
|
2082 if (b == NULL) {
|
|
0
|
2083 return NGX_ERROR;
|
|
|
2084 }
|
|
|
2085
|
|
|
2086 b->last_buf = 1;
|
|
|
2087 out.buf = b;
|
|
|
2088 out.next = NULL;
|
|
|
2089
|
|
|
2090 return ngx_http_output_filter(r, &out);
|
|
|
2091 }
|
|
|
2092
|
|
|
2093
|
|
50
|
2094 void
|
|
|
2095 ngx_http_close_request(ngx_http_request_t *r, int error)
|
|
0
|
2096 {
|
|
|
2097 ngx_uint_t i;
|
|
|
2098 ngx_log_t *log;
|
|
|
2099 ngx_http_log_ctx_t *ctx;
|
|
|
2100 ngx_http_cleanup_t *cleanup;
|
|
|
2101 ngx_http_core_loc_conf_t *clcf;
|
|
|
2102 struct linger l;
|
|
|
2103
|
|
|
2104 log = r->connection->log;
|
|
|
2105
|
|
|
2106 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, log, 0, "http close request");
|
|
|
2107
|
|
|
2108 if (r->pool == NULL) {
|
|
|
2109 ngx_log_error(NGX_LOG_ALERT, log, 0,
|
|
|
2110 "http request already closed");
|
|
|
2111 return;
|
|
|
2112 }
|
|
|
2113
|
|
|
2114 #if (NGX_STAT_STUB)
|
|
|
2115 if (r->stat_reading) {
|
|
42
|
2116 ngx_atomic_dec(ngx_stat_reading);
|
|
0
|
2117 }
|
|
|
2118
|
|
|
2119 if (r->stat_writing) {
|
|
42
|
2120 ngx_atomic_dec(ngx_stat_writing);
|
|
0
|
2121 }
|
|
|
2122 #endif
|
|
|
2123
|
|
|
2124 if (error && r->headers_out.status == 0) {
|
|
|
2125 r->headers_out.status = error;
|
|
|
2126 }
|
|
|
2127
|
|
|
2128 ngx_http_log_handler(r);
|
|
|
2129
|
|
|
2130 cleanup = r->cleanup.elts;
|
|
|
2131 for (i = 0; i < r->cleanup.nelts; i++) {
|
|
|
2132 if (!cleanup[i].valid) {
|
|
|
2133 continue;
|
|
|
2134 }
|
|
|
2135
|
|
|
2136 #if (NGX_HTTP_CACHE)
|
|
|
2137
|
|
|
2138 if (cleanup[i].cache) {
|
|
|
2139 ngx_http_cache_unlock(cleanup[i].data.cache.hash,
|
|
|
2140 cleanup[i].data.cache.cache, log);
|
|
|
2141 continue;
|
|
|
2142 }
|
|
|
2143
|
|
|
2144 #endif
|
|
|
2145
|
|
|
2146 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, log, 0, "http cleanup fd: %d",
|
|
|
2147 cleanup[i].data.file.fd);
|
|
|
2148
|
|
|
2149 if (ngx_close_file(cleanup[i].data.file.fd) == NGX_FILE_ERROR) {
|
|
|
2150 ngx_log_error(NGX_LOG_ALERT, log, ngx_errno,
|
|
|
2151 ngx_close_file_n " \"%s\" failed",
|
|
|
2152 cleanup[i].data.file.name);
|
|
|
2153 }
|
|
|
2154 }
|
|
|
2155
|
|
|
2156 /* STUB */
|
|
|
2157 if (r->file.fd != NGX_INVALID_FILE) {
|
|
|
2158 if (ngx_close_file(r->file.fd) == NGX_FILE_ERROR) {
|
|
|
2159 ngx_log_error(NGX_LOG_ALERT, log, ngx_errno,
|
|
10
|
2160 ngx_close_file_n " \"%V\" failed", &r->file.name);
|
|
0
|
2161 }
|
|
|
2162 }
|
|
|
2163
|
|
|
2164 if (r->request_body
|
|
|
2165 && r->request_body->temp_file
|
|
|
2166 && r->request_body->temp_file->file.fd != NGX_INVALID_FILE)
|
|
|
2167 {
|
|
|
2168 if (ngx_close_file(r->request_body->temp_file->file.fd)
|
|
|
2169 == NGX_FILE_ERROR)
|
|
|
2170 {
|
|
|
2171 ngx_log_error(NGX_LOG_ALERT, log, ngx_errno,
|
|
10
|
2172 ngx_close_file_n " deleted file \"%V\" failed",
|
|
|
2173 &r->request_body->temp_file->file.name);
|
|
0
|
2174 }
|
|
|
2175 }
|
|
|
2176
|
|
|
2177 if (r->connection->timedout) {
|
|
|
2178 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
2179
|
|
|
2180 if (clcf->reset_timedout_connection) {
|
|
|
2181 l.l_onoff = 1;
|
|
|
2182 l.l_linger = 0;
|
|
|
2183
|
|
|
2184 if (setsockopt(r->connection->fd, SOL_SOCKET, SO_LINGER,
|
|
|
2185 (const void *) &l, sizeof(struct linger)) == -1)
|
|
|
2186 {
|
|
|
2187 ngx_log_error(NGX_LOG_ALERT, log, ngx_socket_errno,
|
|
|
2188 "setsockopt(SO_LINGER) failed");
|
|
|
2189 }
|
|
|
2190 }
|
|
|
2191 }
|
|
|
2192
|
|
10
|
2193 /* the variuos request strings were allocated from r->pool */
|
|
0
|
2194 ctx = log->data;
|
|
10
|
2195 ctx->request = NULL;
|
|
0
|
2196
|
|
|
2197 r->request_line.len = 0;
|
|
|
2198
|
|
|
2199 ngx_destroy_pool(r->pool);
|
|
|
2200 }
|
|
|
2201
|
|
|
2202
|
|
|
2203 #if (NGX_HTTP_SSL)
|
|
|
2204
|
|
50
|
2205 void
|
|
|
2206 ngx_ssl_close_handler(ngx_event_t *ev)
|
|
0
|
2207 {
|
|
|
2208 ngx_connection_t *c;
|
|
|
2209
|
|
|
2210 c = ev->data;
|
|
|
2211
|
|
|
2212 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, ev->log, 0, "http ssl close handler");
|
|
|
2213
|
|
|
2214 if (ngx_ssl_shutdown(c) == NGX_AGAIN) {
|
|
|
2215 return;
|
|
|
2216 }
|
|
|
2217
|
|
|
2218 ngx_http_close_connection(c);
|
|
|
2219 }
|
|
|
2220
|
|
|
2221 #endif
|
|
|
2222
|
|
|
2223
|
|
50
|
2224 void
|
|
|
2225 ngx_http_close_connection(ngx_connection_t *c)
|
|
0
|
2226 {
|
|
28
|
2227 ngx_pool_t *pool;
|
|
|
2228
|
|
0
|
2229 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
|
2230 "close http connection: %d", c->fd);
|
|
|
2231
|
|
2
|
2232 #if (NGX_OPENSSL)
|
|
|
2233
|
|
|
2234 if (c->ssl) {
|
|
|
2235 if (ngx_ssl_shutdown(c) == NGX_AGAIN) {
|
|
|
2236 c->read->event_handler = ngx_ssl_close_handler;
|
|
|
2237 c->write->event_handler = ngx_ssl_close_handler;
|
|
|
2238 return;
|
|
|
2239 }
|
|
|
2240 }
|
|
|
2241
|
|
|
2242 #endif
|
|
|
2243
|
|
0
|
2244 #if (NGX_STAT_STUB)
|
|
42
|
2245 ngx_atomic_dec(ngx_stat_active);
|
|
0
|
2246 #endif
|
|
|
2247
|
|
28
|
2248 pool = c->pool;
|
|
|
2249
|
|
0
|
2250 ngx_close_connection(c);
|
|
28
|
2251
|
|
50
|
2252 ngx_destroy_pool(pool);
|
|
0
|
2253 }
|
|
|
2254
|
|
|
2255
|
|
50
|
2256 static void
|
|
|
2257 ngx_http_client_error(ngx_http_request_t *r, int client_error, int error)
|
|
0
|
2258 {
|
|
10
|
2259 u_char *p;
|
|
0
|
2260 ngx_http_log_ctx_t *ctx;
|
|
|
2261 ngx_http_core_srv_conf_t *cscf;
|
|
|
2262
|
|
|
2263 ctx = r->connection->log->data;
|
|
|
2264
|
|
|
2265 if (error == NGX_HTTP_REQUEST_TIME_OUT) {
|
|
|
2266 ngx_log_error(NGX_LOG_INFO, r->connection->log, NGX_ETIMEDOUT,
|
|
|
2267 "client timed out");
|
|
|
2268 r->connection->timedout = 1;
|
|
|
2269 ngx_http_close_request(r, error);
|
|
|
2270 ngx_http_close_connection(r->connection);
|
|
|
2271 return;
|
|
|
2272 }
|
|
|
2273
|
|
|
2274 r->connection->log->handler = NULL;
|
|
|
2275
|
|
10
|
2276 if (ctx->request) {
|
|
|
2277
|
|
0
|
2278 switch (client_error) {
|
|
|
2279
|
|
|
2280 case NGX_HTTP_PARSE_INVALID_HOST:
|
|
|
2281 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
|
|
10
|
2282 "client %V sent invalid \"Host\" header \"%V\", URL: \"%V\"",
|
|
|
2283 ctx->client, &r->headers_in.host->value,
|
|
|
2284 &ctx->request->unparsed_uri);
|
|
0
|
2285
|
|
|
2286 error = NGX_HTTP_INVALID_HOST;
|
|
|
2287
|
|
|
2288 cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
|
|
|
2289
|
|
|
2290 if (cscf->restrict_host_names == NGX_HTTP_RESTRICT_HOST_CLOSE) {
|
|
|
2291 ngx_http_close_request(r, error);
|
|
|
2292 ngx_http_close_connection(r->connection);
|
|
|
2293 return;
|
|
|
2294 }
|
|
|
2295
|
|
|
2296 break;
|
|
|
2297
|
|
|
2298 case NGX_HTTP_PARSE_HTTP_TO_HTTPS:
|
|
|
2299 error = NGX_HTTP_TO_HTTPS;
|
|
10
|
2300 if (ctx->request->headers_in.referer) {
|
|
|
2301 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
|
|
|
2302 "client %V sent plain HTTP request to HTTPS port, "
|
|
|
2303 "URL: \"%V\", referrer \"%V\"",
|
|
|
2304 ctx->client, &ctx->request->unparsed_uri,
|
|
|
2305 &ctx->request->headers_in.referer->value);
|
|
|
2306
|
|
|
2307 } else {
|
|
|
2308 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
|
|
|
2309 "client %V sent plain HTTP request to HTTPS port, "
|
|
|
2310 "URL: \"%V\"", ctx->client, &ctx->request->unparsed_uri);
|
|
|
2311 }
|
|
|
2312
|
|
|
2313 break;
|
|
0
|
2314
|
|
|
2315 default:
|
|
|
2316 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
|
|
|
2317 client_header_errors[client_error - NGX_HTTP_CLIENT_ERROR],
|
|
10
|
2318 ctx->client, &ctx->request->unparsed_uri);
|
|
0
|
2319 }
|
|
|
2320
|
|
|
2321 } else {
|
|
10
|
2322
|
|
0
|
2323 if (error == NGX_HTTP_REQUEST_URI_TOO_LARGE) {
|
|
|
2324 r->request_line.len = r->header_in->end - r->request_start;
|
|
|
2325 r->request_line.data = r->request_start;
|
|
10
|
2326
|
|
|
2327 } else {
|
|
|
2328 if (r->request_line.data == NULL) {
|
|
|
2329 for (p = r->request_start; p < r->header_in->last; p++) {
|
|
|
2330 if (*p == CR || *p == LF) {
|
|
|
2331 break;
|
|
|
2332 }
|
|
|
2333 }
|
|
|
2334
|
|
|
2335 r->request_line.len = p - r->request_start;
|
|
|
2336 r->request_line.data = r->request_start;
|
|
|
2337 }
|
|
0
|
2338 }
|
|
|
2339
|
|
|
2340 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
|
|
|
2341 client_header_errors[client_error - NGX_HTTP_CLIENT_ERROR],
|
|
10
|
2342 ctx->client, &r->request_line);
|
|
0
|
2343 }
|
|
|
2344
|
|
|
2345 r->connection->log->handler = ngx_http_log_error;
|
|
|
2346
|
|
|
2347 ngx_http_finalize_request(r, error);
|
|
|
2348 }
|
|
|
2349
|
|
|
2350
|
|
50
|
2351 static u_char *
|
|
|
2352 ngx_http_log_error(ngx_log_t *log, u_char *buf, size_t len)
|
|
0
|
2353 {
|
|
32
|
2354 u_char *p;
|
|
|
2355 ngx_http_log_ctx_t *ctx;
|
|
10
|
2356
|
|
|
2357 p = buf;
|
|
|
2358
|
|
32
|
2359 ctx = log->data;
|
|
|
2360
|
|
|
2361 if (log->action) {
|
|
|
2362 p = ngx_snprintf(p, len, " while %s", log->action);
|
|
10
|
2363 len -= p - buf;
|
|
|
2364 }
|
|
|
2365
|
|
|
2366 p = ngx_snprintf(p, len, ", client: %V", ctx->client);
|
|
|
2367
|
|
|
2368 if (ctx->request == NULL) {
|
|
|
2369 return p;
|
|
0
|
2370 }
|
|
10
|
2371
|
|
|
2372 len -= p - buf;
|
|
|
2373
|
|
|
2374 p = ngx_snprintf(p, len, ", URL: \"%V\"", &ctx->request->unparsed_uri);
|
|
|
2375
|
|
|
2376 if (ctx->request->headers_in.referer == NULL) {
|
|
|
2377 return p;
|
|
|
2378 }
|
|
|
2379
|
|
|
2380 len -= p - buf;
|
|
|
2381
|
|
|
2382 return ngx_snprintf(p, len, ", referrer: \"%V\"",
|
|
|
2383 &ctx->request->headers_in.referer->value);
|
|
0
|
2384 }
|
