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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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58
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22
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23 static ngx_int_t ngx_http_process_header_line(ngx_http_request_t *r,
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24 ngx_table_elt_t *h, ngx_uint_t offset);
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25 static ngx_int_t ngx_http_process_cookie(ngx_http_request_t *r,
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26 ngx_table_elt_t *h, ngx_uint_t offset);
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27
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0
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28 static ngx_int_t ngx_http_process_request_header(ngx_http_request_t *r);
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26
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29 static ngx_int_t ngx_http_find_virtual_server(ngx_http_request_t *r);
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0
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30
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58
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31 static void ngx_http_request_handler(ngx_event_t *ev);
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0
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32 static void ngx_http_set_write_handler(ngx_http_request_t *r);
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58
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33 static void ngx_http_writer(ngx_http_request_t *r);
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34 static ngx_int_t ngx_http_postponed_handler(ngx_http_request_t *r);
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35
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36 static void ngx_http_block_read(ngx_http_request_t *r);
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37 static void ngx_http_read_discarded_body_handler(ngx_http_request_t *r);
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0
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38 static ngx_int_t ngx_http_read_discarded_body(ngx_http_request_t *r);
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39
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40 static void ngx_http_set_keepalive(ngx_http_request_t *r);
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41 static void ngx_http_keepalive_handler(ngx_event_t *ev);
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42 static void ngx_http_set_lingering_close(ngx_http_request_t *r);
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43 static void ngx_http_lingering_close_handler(ngx_event_t *ev);
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44
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32
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45 static u_char *ngx_http_log_error(ngx_log_t *log, u_char *buf, size_t len);
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58
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46 static u_char *ngx_http_log_error_handler(ngx_http_request_t *r, u_char *buf,
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47 size_t len);
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0
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48
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49
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54
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50 static char *ngx_http_client_errors[] = {
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51
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52 /* NGX_HTTP_PARSE_INVALID_METHOD */
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53 "client sent invalid method",
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54
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55 /* NGX_HTTP_PARSE_INVALID_REQUEST */
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56 "client sent invalid request",
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57
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58 /* NGX_HTTP_PARSE_INVALID_09_METHOD */
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59 "client sent invalid method in HTTP/0.9 request"
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0
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60 };
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61
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62
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63 ngx_http_header_t ngx_http_headers_in[] = {
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58
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64 { ngx_string("Host"), offsetof(ngx_http_headers_in_t, host),
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65 ngx_http_process_header_line },
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66
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67 { ngx_string("Connection"), offsetof(ngx_http_headers_in_t, connection),
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68 ngx_http_process_header_line },
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69
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0
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70 { ngx_string("If-Modified-Since"),
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58
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71 offsetof(ngx_http_headers_in_t, if_modified_since),
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72 ngx_http_process_header_line },
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73
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74 { ngx_string("User-Agent"), offsetof(ngx_http_headers_in_t, user_agent),
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75 ngx_http_process_header_line },
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76
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77 { ngx_string("Referer"), offsetof(ngx_http_headers_in_t, referer),
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78 ngx_http_process_header_line },
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79
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0
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80 { ngx_string("Content-Length"),
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58
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81 offsetof(ngx_http_headers_in_t, content_length),
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82 ngx_http_process_header_line },
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83
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28
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84 { ngx_string("Content-Type"),
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58
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85 offsetof(ngx_http_headers_in_t, content_type),
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86 ngx_http_process_header_line },
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87
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88 { ngx_string("Range"), offsetof(ngx_http_headers_in_t, range),
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89 ngx_http_process_header_line },
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90
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0
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91 #if 0
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58
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92 { ngx_string("If-Range"), offsetof(ngx_http_headers_in_t, if_range),
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93 ngx_http_process_header_line },
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0
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94 #endif
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95
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96 #if (NGX_HTTP_GZIP)
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97 { ngx_string("Accept-Encoding"),
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58
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98 offsetof(ngx_http_headers_in_t, accept_encoding),
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99 ngx_http_process_header_line },
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100
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101 { ngx_string("Via"), offsetof(ngx_http_headers_in_t, via),
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102 ngx_http_process_header_line },
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0
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103 #endif
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104
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105 { ngx_string("Authorization"),
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58
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106 offsetof(ngx_http_headers_in_t, authorization),
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107 ngx_http_process_header_line },
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108
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109 { ngx_string("Keep-Alive"), offsetof(ngx_http_headers_in_t, keep_alive),
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110 ngx_http_process_header_line },
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0
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111
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112 #if (NGX_HTTP_PROXY)
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113 { ngx_string("X-Forwarded-For"),
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58
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114 offsetof(ngx_http_headers_in_t, x_forwarded_for),
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115 ngx_http_process_header_line },
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116
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117 { ngx_string("X-Real-IP"), offsetof(ngx_http_headers_in_t, x_real_ip),
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118 ngx_http_process_header_line },
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119
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120 { ngx_string("X-URL"), offsetof(ngx_http_headers_in_t, x_url),
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121 ngx_http_process_header_line },
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0
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122 #endif
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28
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123
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38
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124 #if (NGX_HTTP_HEADERS)
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58
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125 { ngx_string("Accept"), offsetof(ngx_http_headers_in_t, accept),
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126 ngx_http_process_header_line },
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127
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38
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128 { ngx_string("Accept-Language"),
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58
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129 offsetof(ngx_http_headers_in_t, accept_language),
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130 ngx_http_process_header_line },
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38
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131 #endif
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132
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58
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133 { ngx_string("Cookie"), 0, ngx_http_process_cookie },
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134
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135 { ngx_null_string, 0, NULL }
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0
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136 };
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137
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138
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50
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139 void
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140 ngx_http_init_connection(ngx_connection_t *c)
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0
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141 {
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142 ngx_event_t *rev;
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143 ngx_http_log_ctx_t *ctx;
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144
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50
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145 ctx = ngx_palloc(c->pool, sizeof(ngx_http_log_ctx_t));
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146 if (ctx == NULL) {
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0
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147 ngx_http_close_connection(c);
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148 return;
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149 }
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150
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10
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151 ctx->client = &c->addr_text;
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152 ctx->request = NULL;
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32
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153
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154 c->log->connection = c->number;
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155 c->log->handler = ngx_http_log_error;
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0
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156 c->log->data = ctx;
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32
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157 c->log->action = "reading client request line";
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158
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0
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159 c->log_error = NGX_ERROR_INFO;
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160
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161 rev = c->read;
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58
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162 rev->handler = ngx_http_init_request;
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163
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164 /* STUB: epoll edge */ c->write->handler = ngx_http_empty_handler;
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0
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165
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166 if (rev->ready) {
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167 /* the deferred accept(), rtsig, aio, iocp */
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168
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169 if (ngx_accept_mutex) {
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170 if (ngx_mutex_lock(ngx_posted_events_mutex) == NGX_ERROR) {
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42
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171
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0
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172 ngx_http_close_connection(c);
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173 return;
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174 }
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175
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176 ngx_post_event(rev);
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177
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178 ngx_mutex_unlock(ngx_posted_events_mutex);
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42
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179
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180 #if (NGX_STAT_STUB)
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44
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181 ngx_atomic_inc(ngx_stat_reading);
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42
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182 #endif
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0
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183 return;
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184 }
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185
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186 #if (NGX_STAT_STUB)
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42
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187 ngx_atomic_inc(ngx_stat_reading);
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0
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188 #endif
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189
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190 ngx_http_init_request(rev);
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191 return;
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192 }
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193
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194 ngx_add_timer(rev, c->listening->post_accept_timeout);
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195
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196 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) {
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197 ngx_http_close_connection(c);
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198 return;
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199 }
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200
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201 #if (NGX_STAT_STUB)
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42
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202 ngx_atomic_inc(ngx_stat_reading);
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0
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203 #endif
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204
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205 }
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206
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207
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50
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208 static
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209 void ngx_http_init_request(ngx_event_t *rev)
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0
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210 {
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211 ngx_uint_t i;
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212 socklen_t len;
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28
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213 struct sockaddr_in sin;
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0
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214 ngx_connection_t *c;
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215 ngx_http_request_t *r;
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216 ngx_http_in_port_t *in_port;
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217 ngx_http_in_addr_t *in_addr;
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54
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218 ngx_http_log_ctx_t *ctx;
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0
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219 ngx_http_connection_t *hc;
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220 ngx_http_server_name_t *server_name;
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221 ngx_http_core_srv_conf_t *cscf;
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222 ngx_http_core_loc_conf_t *clcf;
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223 #if (NGX_HTTP_SSL)
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224 ngx_http_ssl_srv_conf_t *sscf;
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225 #endif
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226
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227 c = rev->data;
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228
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229 if (rev->timedout) {
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230 ngx_log_error(NGX_LOG_INFO, c->log, NGX_ETIMEDOUT, "client timed out");
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231
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232 #if (NGX_STAT_STUB)
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42
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233 ngx_atomic_dec(ngx_stat_reading);
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0
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234 #endif
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235
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236 ngx_http_close_connection(c);
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237 return;
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238 }
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239
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240 hc = c->data;
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241
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242 if (hc) {
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243
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244 #if (NGX_STAT_STUB)
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42
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245 ngx_atomic_inc(ngx_stat_reading);
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0
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246 #endif
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247
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248 } else {
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50
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249 hc = ngx_pcalloc(c->pool, sizeof(ngx_http_connection_t));
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250 if (hc == NULL) {
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0
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251
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252 #if (NGX_STAT_STUB)
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42
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253 ngx_atomic_dec(ngx_stat_reading);
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0
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254 #endif
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255
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256 ngx_http_close_connection(c);
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257 return;
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258 }
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259 }
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260
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261 r = hc->request;
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262
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263 if (r) {
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264 ngx_memzero(r, sizeof(ngx_http_request_t));
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265
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266 r->pipeline = hc->pipeline;
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267
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268 if (hc->nbusy) {
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269 r->header_in = hc->busy[0];
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270 }
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271
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272 } else {
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50
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273 r = ngx_pcalloc(c->pool, sizeof(ngx_http_request_t));
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274 if (r == NULL) {
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0
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275
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276 #if (NGX_STAT_STUB)
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42
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277 ngx_atomic_dec(ngx_stat_reading);
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0
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278 #endif
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279
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280 ngx_http_close_connection(c);
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281 return;
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282 }
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283
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284 hc->request = r;
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285 }
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286
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287 #if (NGX_STAT_STUB)
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42
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288 ngx_atomic_dec(ngx_stat_reading);
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0
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289 #endif
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290
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291 c->data = r;
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292 r->http_connection = hc;
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293
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294 c->sent = 0;
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295 r->signature = NGX_HTTP_MODULE;
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296
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297 /* find the server configuration for the address:port */
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298
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299 /* AF_INET only */
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300
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301 in_port = c->servers;
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302 in_addr = in_port->addrs.elts;
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303
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304 r->port = in_port->port;
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305 r->port_text = &in_port->port_text;
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306
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307 i = 0;
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308
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309 if (in_port->addrs.nelts > 1) {
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310
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311 /*
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312 * There are several addresses on this port and one of them
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313 * is the "*:port" wildcard so getsockname() is needed to determine
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314 * the server address.
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315 *
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316 * AcceptEx() already gave this address.
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317 */
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318
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10
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319 #if (NGX_WIN32)
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0
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320 if (c->local_sockaddr) {
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321 r->in_addr =
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322 ((struct sockaddr_in *) c->local_sockaddr)->sin_addr.s_addr;
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323
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28
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324 } else
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0
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325 #endif
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28
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326 {
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0
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327 len = sizeof(struct sockaddr_in);
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28
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328 if (getsockname(c->fd, (struct sockaddr *) &sin, &len) == -1) {
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0
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329 ngx_connection_error(c, ngx_socket_errno,
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330 "getsockname() failed");
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331 ngx_http_close_connection(c);
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332 return;
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333 }
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334
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28
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335 r->in_addr = sin.sin_addr.s_addr;
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0
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336 }
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337
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338 /* the last in_port->addrs address is "*" */
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339
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340 for ( /* void */ ; i < in_port->addrs.nelts - 1; i++) {
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341 if (in_addr[i].addr == r->in_addr) {
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342 break;
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343 }
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344 }
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345
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346 } else {
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347 r->in_addr = in_addr[0].addr;
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348 }
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349
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26
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350 r->virtual_names = &in_addr[i];
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0
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351
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352 /* the default server configuration for the address:port */
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353 cscf = in_addr[i].core_srv_conf;
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354
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355 r->main_conf = cscf->ctx->main_conf;
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356 r->srv_conf = cscf->ctx->srv_conf;
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357 r->loc_conf = cscf->ctx->loc_conf;
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358
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58
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359 rev->handler = ngx_http_process_request_line;
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0
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360
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361 #if (NGX_HTTP_SSL)
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362
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363 sscf = ngx_http_get_module_srv_conf(r, ngx_http_ssl_module);
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364 if (sscf->enable) {
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365
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366 if (c->ssl == NULL) {
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367 if (ngx_ssl_create_session(sscf->ssl_ctx, c, NGX_SSL_BUFFER)
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56
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368 == NGX_ERROR)
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0
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369 {
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370 ngx_http_close_connection(c);
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371 return;
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372 }
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373
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58
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374 rev->handler = ngx_http_ssl_handshake;
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26
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375
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0
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376 /*
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377 * The majority of browsers do not send the "close notify" alert.
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378 * Among them are MSIE, Mozilla, Netscape 4, Konqueror, and Links.
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54
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379 * And what is more, MSIE ignores the server's alert.
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0
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380 *
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381 * Opera always sends the alert.
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382 */
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383
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|
|
384 c->ssl->no_rcv_shut = 1;
|
|
|
385 }
|
|
|
386
|
|
62
|
387 r->main_filter_need_in_memory = 1;
|
|
0
|
388 }
|
|
|
389
|
|
|
390 #endif
|
|
|
391
|
|
|
392 server_name = cscf->server_names.elts;
|
|
6
|
393 r->server_name = server_name->name;
|
|
0
|
394
|
|
|
395 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
396 c->log->file = clcf->err_log->file;
|
|
|
397 if (!(c->log->log_level & NGX_LOG_DEBUG_CONNECTION)) {
|
|
|
398 c->log->log_level = clcf->err_log->log_level;
|
|
|
399 }
|
|
|
400
|
|
|
401 if (c->buffer == NULL) {
|
|
|
402 c->buffer = ngx_create_temp_buf(c->pool,
|
|
|
403 cscf->client_header_buffer_size);
|
|
|
404 if (c->buffer == NULL) {
|
|
|
405 ngx_http_close_connection(c);
|
|
|
406 return;
|
|
|
407 }
|
|
|
408 }
|
|
|
409
|
|
|
410 if (r->header_in == NULL) {
|
|
|
411 r->header_in = c->buffer;
|
|
|
412 }
|
|
|
413
|
|
50
|
414 r->pool = ngx_create_pool(cscf->request_pool_size, c->log);
|
|
|
415 if (r->pool == NULL) {
|
|
0
|
416 ngx_http_close_connection(c);
|
|
|
417 return;
|
|
|
418 }
|
|
|
419
|
|
|
420
|
|
|
421 if (ngx_list_init(&r->headers_out.headers, r->pool, 20,
|
|
58
|
422 sizeof(ngx_table_elt_t)) == NGX_ERROR)
|
|
0
|
423 {
|
|
|
424 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
425 ngx_http_close_connection(c);
|
|
|
426 return;
|
|
|
427 }
|
|
|
428
|
|
|
429
|
|
|
430 r->ctx = ngx_pcalloc(r->pool, sizeof(void *) * ngx_http_max_module);
|
|
|
431 if (r->ctx == NULL) {
|
|
|
432 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
433 ngx_http_close_connection(c);
|
|
|
434 return;
|
|
|
435 }
|
|
|
436
|
|
|
437 c->single_connection = 1;
|
|
|
438 r->connection = c;
|
|
|
439
|
|
46
|
440 r->start_time = ngx_time();
|
|
|
441
|
|
0
|
442 r->headers_in.content_length_n = -1;
|
|
|
443 r->headers_in.keep_alive_n = -1;
|
|
|
444 r->headers_out.content_length_n = -1;
|
|
|
445 r->headers_out.last_modified_time = -1;
|
|
|
446
|
|
|
447 r->http_state = NGX_HTTP_READING_REQUEST_STATE;
|
|
|
448
|
|
54
|
449 ctx = c->log->data;
|
|
|
450 ctx->request = r;
|
|
58
|
451 r->log_handler = ngx_http_log_error_handler;
|
|
54
|
452
|
|
0
|
453 #if (NGX_STAT_STUB)
|
|
42
|
454 ngx_atomic_inc(ngx_stat_reading);
|
|
26
|
455 r->stat_reading = 1;
|
|
42
|
456 ngx_atomic_inc(ngx_stat_requests);
|
|
0
|
457 #endif
|
|
|
458
|
|
58
|
459 rev->handler(rev);
|
|
0
|
460 }
|
|
|
461
|
|
|
462
|
|
|
463 #if (NGX_HTTP_SSL)
|
|
|
464
|
|
50
|
465 static void
|
|
|
466 ngx_http_ssl_handshake(ngx_event_t *rev)
|
|
0
|
467 {
|
|
10
|
468 u_char buf[1];
|
|
|
469 ssize_t n;
|
|
0
|
470 ngx_int_t rc;
|
|
|
471 ngx_connection_t *c;
|
|
|
472 ngx_http_request_t *r;
|
|
|
473
|
|
|
474 c = rev->data;
|
|
|
475 r = c->data;
|
|
|
476
|
|
|
477 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, rev->log, 0,
|
|
|
478 "http check ssl handshake");
|
|
|
479
|
|
|
480 if (rev->timedout) {
|
|
54
|
481 ngx_log_error(NGX_LOG_INFO, c->log, NGX_ETIMEDOUT, "client timed out");
|
|
|
482 c->timedout = 1;
|
|
|
483 ngx_http_close_request(r, NGX_HTTP_REQUEST_TIME_OUT);
|
|
|
484 ngx_http_close_connection(c);
|
|
0
|
485 return;
|
|
|
486 }
|
|
|
487
|
|
|
488 n = recv(c->fd, buf, 1, MSG_PEEK);
|
|
|
489
|
|
|
490 if (n == -1 && ngx_socket_errno == NGX_EAGAIN) {
|
|
|
491 return;
|
|
|
492 }
|
|
|
493
|
|
|
494 if (n == 1) {
|
|
|
495 if (buf[0] == 0x80 /* SSLv2 */ || buf[0] == 0x16 /* SSLv3/TLSv1 */) {
|
|
|
496 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, rev->log, 0,
|
|
10
|
497 "https ssl handshake: 0x%02Xd", buf[0]);
|
|
0
|
498
|
|
|
499 c->recv = ngx_ssl_recv;
|
|
|
500 c->send_chain = ngx_ssl_send_chain;
|
|
|
501
|
|
|
502 rc = ngx_ssl_handshake(c);
|
|
|
503
|
|
|
504 if (rc == NGX_ERROR) {
|
|
|
505 ngx_http_close_request(r, NGX_HTTP_BAD_REQUEST);
|
|
|
506 ngx_http_close_connection(r->connection);
|
|
|
507 return;
|
|
|
508 }
|
|
|
509
|
|
|
510 if (rc != NGX_OK) {
|
|
|
511 return;
|
|
|
512 }
|
|
|
513
|
|
|
514 } else {
|
|
|
515 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, rev->log, 0,
|
|
|
516 "plain http");
|
|
|
517
|
|
|
518 r->plain_http = 1;
|
|
|
519 }
|
|
|
520 }
|
|
|
521
|
|
58
|
522 rev->handler = ngx_http_process_request_line;
|
|
0
|
523 ngx_http_process_request_line(rev);
|
|
|
524 }
|
|
|
525
|
|
|
526 #endif
|
|
|
527
|
|
|
528
|
|
50
|
529 static void
|
|
|
530 ngx_http_process_request_line(ngx_event_t *rev)
|
|
0
|
531 {
|
|
|
532 ssize_t n;
|
|
|
533 ngx_int_t rc, rv;
|
|
|
534 ngx_connection_t *c;
|
|
|
535 ngx_http_request_t *r;
|
|
|
536 ngx_http_log_ctx_t *ctx;
|
|
|
537
|
|
|
538 c = rev->data;
|
|
|
539 r = c->data;
|
|
|
540
|
|
|
541 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, rev->log, 0,
|
|
|
542 "http process request line");
|
|
|
543
|
|
|
544 if (rev->timedout) {
|
|
54
|
545 ngx_log_error(NGX_LOG_INFO, c->log, NGX_ETIMEDOUT, "client timed out");
|
|
|
546 c->timedout = 1;
|
|
|
547 ngx_http_close_request(r, NGX_HTTP_REQUEST_TIME_OUT);
|
|
|
548 ngx_http_close_connection(c);
|
|
0
|
549 return;
|
|
|
550 }
|
|
|
551
|
|
|
552 rc = NGX_AGAIN;
|
|
|
553
|
|
|
554 for ( ;; ) {
|
|
|
555
|
|
|
556 if (rc == NGX_AGAIN) {
|
|
|
557 n = ngx_http_read_request_header(r);
|
|
|
558
|
|
|
559 if (n == NGX_AGAIN || n == NGX_ERROR) {
|
|
|
560 return;
|
|
|
561 }
|
|
|
562 }
|
|
|
563
|
|
|
564 rc = ngx_http_parse_request_line(r, r->header_in);
|
|
|
565
|
|
|
566 if (rc == NGX_OK) {
|
|
|
567
|
|
|
568 /* the request line has been parsed successfully */
|
|
|
569
|
|
10
|
570 r->request_line.len = r->request_end - r->request_start;
|
|
|
571 r->request_line.data = r->request_start;
|
|
|
572
|
|
0
|
573
|
|
|
574 if (r->args_start) {
|
|
|
575 r->uri.len = r->args_start - 1 - r->uri_start;
|
|
|
576 } else {
|
|
|
577 r->uri.len = r->uri_end - r->uri_start;
|
|
|
578 }
|
|
|
579
|
|
18
|
580
|
|
2
|
581 if (r->complex_uri || r->quoted_uri) {
|
|
10
|
582
|
|
50
|
583 r->uri.data = ngx_palloc(r->pool, r->uri.len + 1);
|
|
|
584 if (r->uri.data == NULL) {
|
|
10
|
585 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
586 ngx_http_close_connection(c);
|
|
|
587 return;
|
|
|
588 }
|
|
|
589
|
|
0
|
590 rc = ngx_http_parse_complex_uri(r);
|
|
|
591
|
|
54
|
592 if (rc == NGX_HTTP_PARSE_INVALID_REQUEST) {
|
|
|
593 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
|
594 "client sent invalid request");
|
|
|
595 ngx_http_finalize_request(r, NGX_HTTP_BAD_REQUEST);
|
|
0
|
596 return;
|
|
|
597 }
|
|
|
598
|
|
|
599 } else {
|
|
10
|
600 r->uri.data = r->uri_start;
|
|
0
|
601 }
|
|
|
602
|
|
18
|
603
|
|
10
|
604 r->unparsed_uri.len = r->uri_end - r->uri_start;
|
|
|
605 r->unparsed_uri.data = r->uri_start;
|
|
|
606
|
|
0
|
607
|
|
58
|
608 r->method_name.len = r->method_end - r->request_start + 1;
|
|
|
609 r->method_name.data = r->request_line.data;
|
|
0
|
610
|
|
10
|
611
|
|
28
|
612 if (r->http_protocol.data) {
|
|
|
613 r->http_protocol.len = r->request_end - r->http_protocol.data;
|
|
|
614 }
|
|
|
615
|
|
|
616
|
|
0
|
617 if (r->uri_ext) {
|
|
|
618 if (r->args_start) {
|
|
|
619 r->exten.len = r->args_start - 1 - r->uri_ext;
|
|
|
620 } else {
|
|
|
621 r->exten.len = r->uri_end - r->uri_ext;
|
|
|
622 }
|
|
|
623
|
|
10
|
624 r->exten.data = r->uri_ext;
|
|
0
|
625 }
|
|
|
626
|
|
10
|
627
|
|
0
|
628 if (r->args_start && r->uri_end > r->args_start) {
|
|
|
629 r->args.len = r->uri_end - r->args_start;
|
|
10
|
630 r->args.data = r->args_start;
|
|
0
|
631 }
|
|
|
632
|
|
10
|
633
|
|
|
634 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
|
635 "http request line: \"%V\"", &r->request_line);
|
|
|
636
|
|
0
|
637 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
10
|
638 "http uri: \"%V\"", &r->uri);
|
|
0
|
639
|
|
|
640 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
10
|
641 "http args: \"%V\"", &r->args);
|
|
0
|
642
|
|
|
643 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
10
|
644 "http exten: \"%V\"", &r->exten);
|
|
|
645
|
|
0
|
646 if (r->http_version < NGX_HTTP_VERSION_10) {
|
|
58
|
647 r->read_event_handler = ngx_http_block_read;
|
|
0
|
648 ngx_http_handler(r);
|
|
|
649 return;
|
|
|
650 }
|
|
|
651
|
|
|
652
|
|
|
653 if (ngx_list_init(&r->headers_in.headers, r->pool, 20,
|
|
|
654 sizeof(ngx_table_elt_t)) == NGX_ERROR)
|
|
|
655 {
|
|
|
656 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
657 ngx_http_close_connection(c);
|
|
|
658 return;
|
|
|
659 }
|
|
|
660
|
|
|
661
|
|
48
|
662 if (ngx_array_init(&r->headers_in.cookies, r->pool, 2,
|
|
0
|
663 sizeof(ngx_table_elt_t *)) == NGX_ERROR)
|
|
|
664 {
|
|
|
665 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
666 ngx_http_close_connection(c);
|
|
|
667 return;
|
|
|
668 }
|
|
|
669
|
|
32
|
670 c->log->action = "reading client request headers";
|
|
0
|
671
|
|
58
|
672 rev->handler = ngx_http_process_request_headers;
|
|
0
|
673 ngx_http_process_request_headers(rev);
|
|
|
674
|
|
|
675 return;
|
|
54
|
676 }
|
|
|
677
|
|
|
678 if (rc != NGX_AGAIN) {
|
|
0
|
679
|
|
|
680 /* there was error while a request line parsing */
|
|
|
681
|
|
54
|
682 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
|
683 ngx_http_client_errors[rc - NGX_HTTP_CLIENT_ERROR]);
|
|
|
684 ngx_http_finalize_request(r, NGX_HTTP_BAD_REQUEST);
|
|
0
|
685 return;
|
|
|
686 }
|
|
|
687
|
|
|
688 /* NGX_AGAIN: a request line parsing is still incomplete */
|
|
|
689
|
|
|
690 if (r->header_in->pos == r->header_in->end) {
|
|
|
691
|
|
|
692 rv = ngx_http_alloc_large_header_buffer(r, 1);
|
|
|
693
|
|
|
694 if (rv == NGX_ERROR) {
|
|
|
695 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
696 ngx_http_close_connection(c);
|
|
|
697 return;
|
|
|
698 }
|
|
|
699
|
|
|
700 if (rv == NGX_DECLINED) {
|
|
54
|
701 ctx = c->log->data;
|
|
|
702 ctx->request = r;
|
|
|
703
|
|
|
704 r->request_line.len = r->header_in->end - r->request_start;
|
|
|
705 r->request_line.data = r->request_start;
|
|
|
706
|
|
|
707 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
|
708 "client sent too long URI");
|
|
|
709 ngx_http_finalize_request(r, NGX_HTTP_REQUEST_URI_TOO_LARGE);
|
|
0
|
710 return;
|
|
|
711 }
|
|
|
712 }
|
|
|
713 }
|
|
|
714 }
|
|
|
715
|
|
|
716
|
|
50
|
717 static void
|
|
|
718 ngx_http_process_request_headers(ngx_event_t *rev)
|
|
0
|
719 {
|
|
56
|
720 ssize_t n;
|
|
|
721 ngx_int_t rc, rv;
|
|
|
722 ngx_uint_t key;
|
|
|
723 ngx_str_t header;
|
|
58
|
724 ngx_table_elt_t *h;
|
|
56
|
725 ngx_connection_t *c;
|
|
|
726 ngx_http_header_t *hh;
|
|
|
727 ngx_http_request_t *r;
|
|
60
|
728 ngx_http_core_srv_conf_t *cscf;
|
|
56
|
729 ngx_http_core_main_conf_t *cmcf;
|
|
0
|
730
|
|
|
731 c = rev->data;
|
|
|
732 r = c->data;
|
|
|
733
|
|
|
734 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, rev->log, 0,
|
|
|
735 "http process request header line");
|
|
|
736
|
|
|
737 if (rev->timedout) {
|
|
54
|
738 ngx_log_error(NGX_LOG_INFO, c->log, NGX_ETIMEDOUT, "client timed out");
|
|
|
739 c->timedout = 1;
|
|
|
740 ngx_http_close_request(r, NGX_HTTP_REQUEST_TIME_OUT);
|
|
|
741 ngx_http_close_connection(c);
|
|
0
|
742 return;
|
|
|
743 }
|
|
|
744
|
|
56
|
745 cmcf = ngx_http_get_module_main_conf(r, ngx_http_core_module);
|
|
60
|
746 cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
|
|
56
|
747 hh = (ngx_http_header_t *) cmcf->headers_in_hash.buckets;
|
|
|
748
|
|
0
|
749 rc = NGX_AGAIN;
|
|
|
750
|
|
|
751 for ( ;; ) {
|
|
|
752
|
|
|
753 if (rc == NGX_AGAIN) {
|
|
|
754
|
|
|
755 if (r->header_in->pos == r->header_in->end) {
|
|
|
756
|
|
|
757 rv = ngx_http_alloc_large_header_buffer(r, 0);
|
|
|
758
|
|
|
759 if (rv == NGX_ERROR) {
|
|
|
760 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
761 ngx_http_close_connection(c);
|
|
|
762 return;
|
|
|
763 }
|
|
|
764
|
|
|
765 if (rv == NGX_DECLINED) {
|
|
54
|
766 header.len = r->header_in->end - r->header_name_start;
|
|
|
767 header.data = r->header_name_start;
|
|
|
768 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
|
769 "client sent too long header line: \"%V\"",
|
|
|
770 &header);
|
|
|
771 ngx_http_close_request(r, NGX_HTTP_BAD_REQUEST);
|
|
|
772 ngx_http_close_connection(c);
|
|
0
|
773 return;
|
|
|
774 }
|
|
|
775 }
|
|
|
776
|
|
|
777 n = ngx_http_read_request_header(r);
|
|
|
778
|
|
|
779 if (n == NGX_AGAIN || n == NGX_ERROR) {
|
|
|
780 return;
|
|
|
781 }
|
|
|
782 }
|
|
|
783
|
|
|
784 rc = ngx_http_parse_header_line(r, r->header_in);
|
|
|
785
|
|
|
786 if (rc == NGX_OK) {
|
|
|
787
|
|
60
|
788 if (r->invalid_header && cscf->ignore_invalid_headers) {
|
|
52
|
789
|
|
|
790 /* there was error while a header line parsing */
|
|
|
791
|
|
|
792 header.len = r->header_end - r->header_name_start;
|
|
|
793 header.data = r->header_name_start;
|
|
|
794
|
|
54
|
795 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
|
796 "client sent invalid header line: \"%V\"",
|
|
52
|
797 &header);
|
|
|
798 continue;
|
|
|
799 }
|
|
|
800
|
|
0
|
801 /* a header line has been parsed successfully */
|
|
|
802
|
|
50
|
803 h = ngx_list_push(&r->headers_in.headers);
|
|
|
804 if (h == NULL) {
|
|
0
|
805 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
806 ngx_http_close_connection(c);
|
|
|
807 return;
|
|
|
808 }
|
|
|
809
|
|
56
|
810 h->hash = r->header_hash;
|
|
|
811
|
|
0
|
812 h->key.len = r->header_name_end - r->header_name_start;
|
|
|
813 h->key.data = r->header_name_start;
|
|
|
814 h->key.data[h->key.len] = '\0';
|
|
|
815
|
|
|
816 h->value.len = r->header_end - r->header_start;
|
|
|
817 h->value.data = r->header_start;
|
|
|
818 h->value.data[h->value.len] = '\0';
|
|
|
819
|
|
58
|
820 key = h->hash % cmcf->headers_in_hash.hash_size;
|
|
|
821
|
|
|
822 if (hh[key].name.len == h->key.len
|
|
|
823 && ngx_strcasecmp(hh[key].name.data, h->key.data) == 0)
|
|
0
|
824 {
|
|
58
|
825 if (hh[key].handler(r, h, hh[key].offset) != NGX_OK) {
|
|
0
|
826 return;
|
|
|
827 }
|
|
|
828 }
|
|
|
829
|
|
|
830 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
10
|
831 "http header: \"%V: %V\"",
|
|
|
832 &h->key, &h->value);
|
|
0
|
833
|
|
|
834 continue;
|
|
54
|
835 }
|
|
|
836
|
|
|
837 if (rc == NGX_HTTP_PARSE_HEADER_DONE) {
|
|
0
|
838
|
|
|
839 /* a whole header has been parsed successfully */
|
|
|
840
|
|
|
841 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
842 "http header done");
|
|
|
843
|
|
24
|
844 r->request_length += r->header_in->pos - r->header_in->start;
|
|
|
845
|
|
0
|
846 r->http_state = NGX_HTTP_PROCESS_REQUEST_STATE;
|
|
|
847
|
|
|
848 rc = ngx_http_process_request_header(r);
|
|
|
849
|
|
|
850 if (rc != NGX_OK) {
|
|
|
851 return;
|
|
|
852 }
|
|
|
853
|
|
|
854 if (rev->timer_set) {
|
|
|
855 ngx_del_timer(rev);
|
|
|
856 }
|
|
|
857
|
|
|
858 #if (NGX_STAT_STUB)
|
|
42
|
859 ngx_atomic_dec(ngx_stat_reading);
|
|
0
|
860 r->stat_reading = 0;
|
|
42
|
861 ngx_atomic_inc(ngx_stat_writing);
|
|
0
|
862 r->stat_writing = 1;
|
|
|
863 #endif
|
|
|
864
|
|
58
|
865 rev->handler = ngx_http_request_handler;
|
|
|
866 c->write->handler = ngx_http_request_handler;
|
|
|
867 r->read_event_handler = ngx_http_block_read;
|
|
|
868
|
|
0
|
869 ngx_http_handler(r);
|
|
|
870 return;
|
|
54
|
871 }
|
|
|
872
|
|
|
873 if (rc == NGX_AGAIN) {
|
|
|
874
|
|
|
875 /* a header line parsing is still not complete */
|
|
|
876
|
|
|
877 continue;
|
|
0
|
878 }
|
|
|
879
|
|
54
|
880 /* rc == NGX_HTTP_PARSE_INVALID_HEADER: "\r" is not followed by "\n" */
|
|
|
881
|
|
|
882 header.len = r->header_end - r->header_name_start;
|
|
|
883 header.data = r->header_name_start;
|
|
|
884 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
|
885 "client sent invalid header line: \"%V\\r...\"",
|
|
|
886 &header);
|
|
|
887 ngx_http_close_request(r, NGX_HTTP_BAD_REQUEST);
|
|
|
888 ngx_http_close_connection(c);
|
|
|
889 return;
|
|
0
|
890 }
|
|
|
891 }
|
|
|
892
|
|
|
893
|
|
50
|
894 static ssize_t
|
|
|
895 ngx_http_read_request_header(ngx_http_request_t *r)
|
|
0
|
896 {
|
|
|
897 ssize_t n;
|
|
|
898 ngx_event_t *rev;
|
|
|
899 ngx_http_core_srv_conf_t *cscf;
|
|
|
900
|
|
|
901 rev = r->connection->read;
|
|
|
902
|
|
|
903 n = r->header_in->last - r->header_in->pos;
|
|
|
904
|
|
|
905 if (n > 0) {
|
|
|
906 return n;
|
|
|
907 }
|
|
|
908
|
|
|
909 if (!rev->ready) {
|
|
|
910 return NGX_AGAIN;
|
|
|
911 }
|
|
|
912
|
|
|
913 n = r->connection->recv(r->connection, r->header_in->last,
|
|
|
914 r->header_in->end - r->header_in->last);
|
|
|
915
|
|
|
916 if (n == NGX_AGAIN) {
|
|
|
917 if (!r->header_timeout_set) {
|
|
|
918 cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
|
|
|
919 ngx_add_timer(rev, cscf->client_header_timeout);
|
|
|
920 r->header_timeout_set = 1;
|
|
|
921 }
|
|
|
922
|
|
|
923 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) {
|
|
|
924 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
925 ngx_http_close_connection(r->connection);
|
|
|
926 return NGX_ERROR;
|
|
|
927 }
|
|
|
928
|
|
|
929 return NGX_AGAIN;
|
|
|
930 }
|
|
|
931
|
|
|
932 if (n == 0) {
|
|
|
933 ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
|
|
|
934 "client closed prematurely connection");
|
|
|
935 }
|
|
|
936
|
|
|
937 if (n == 0 || n == NGX_ERROR) {
|
|
|
938 ngx_http_close_request(r, NGX_HTTP_BAD_REQUEST);
|
|
|
939 ngx_http_close_connection(r->connection);
|
|
|
940 return NGX_ERROR;
|
|
|
941 }
|
|
|
942
|
|
|
943 r->header_in->last += n;
|
|
|
944
|
|
|
945 return n;
|
|
|
946 }
|
|
|
947
|
|
|
948
|
|
50
|
949 static ngx_int_t
|
|
|
950 ngx_http_alloc_large_header_buffer(ngx_http_request_t *r,
|
|
|
951 ngx_uint_t request_line)
|
|
0
|
952 {
|
|
|
953 u_char *old, *new;
|
|
|
954 ngx_buf_t *b;
|
|
|
955 ngx_http_connection_t *hc;
|
|
|
956 ngx_http_core_srv_conf_t *cscf;
|
|
|
957
|
|
|
958 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
959 "http alloc large header buffer");
|
|
|
960
|
|
|
961 if (request_line && r->state == 0) {
|
|
|
962
|
|
|
963 /* the client fills up the buffer with "\r\n" */
|
|
|
964
|
|
24
|
965 r->request_length += r->header_in->end - r->header_in->start;
|
|
|
966
|
|
0
|
967 r->header_in->pos = r->header_in->start;
|
|
|
968 r->header_in->last = r->header_in->start;
|
|
|
969
|
|
|
970 return NGX_OK;
|
|
|
971 }
|
|
|
972
|
|
|
973 old = request_line ? r->request_start : r->header_name_start;
|
|
|
974
|
|
|
975 cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
|
|
|
976
|
|
|
977 if (r->state != 0
|
|
|
978 && (size_t) (r->header_in->pos - old)
|
|
|
979 >= cscf->large_client_header_buffers.size)
|
|
|
980 {
|
|
|
981 return NGX_DECLINED;
|
|
|
982 }
|
|
|
983
|
|
|
984 hc = r->http_connection;
|
|
|
985
|
|
|
986 if (hc->nfree) {
|
|
|
987 b = hc->free[--hc->nfree];
|
|
|
988
|
|
|
989 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
10
|
990 "http large header free: %p %uz",
|
|
0
|
991 b->pos, b->end - b->last);
|
|
|
992
|
|
|
993 } else if (hc->nbusy < cscf->large_client_header_buffers.num) {
|
|
|
994
|
|
|
995 if (hc->busy == NULL) {
|
|
|
996 hc->busy = ngx_palloc(r->connection->pool,
|
|
|
997 cscf->large_client_header_buffers.num * sizeof(ngx_buf_t *));
|
|
|
998 if (hc->busy == NULL) {
|
|
|
999 return NGX_ERROR;
|
|
|
1000 }
|
|
|
1001 }
|
|
|
1002
|
|
|
1003 b = ngx_create_temp_buf(r->connection->pool,
|
|
|
1004 cscf->large_client_header_buffers.size);
|
|
|
1005 if (b == NULL) {
|
|
|
1006 return NGX_ERROR;
|
|
|
1007 }
|
|
|
1008
|
|
|
1009 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
10
|
1010 "http large header alloc: %p %uz",
|
|
0
|
1011 b->pos, b->end - b->last);
|
|
|
1012
|
|
|
1013 } else {
|
|
|
1014 return NGX_DECLINED;
|
|
|
1015 }
|
|
|
1016
|
|
|
1017 hc->busy[hc->nbusy++] = b;
|
|
|
1018
|
|
|
1019 if (r->state == 0) {
|
|
|
1020 /*
|
|
|
1021 * r->state == 0 means that a header line was parsed successfully
|
|
|
1022 * and we do not need to copy incomplete header line and
|
|
|
1023 * to relocate the parser header pointers
|
|
|
1024 */
|
|
|
1025
|
|
24
|
1026 r->request_length += r->header_in->end - r->header_in->start;
|
|
|
1027
|
|
0
|
1028 r->header_in = b;
|
|
|
1029
|
|
|
1030 return NGX_OK;
|
|
|
1031 }
|
|
|
1032
|
|
|
1033 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1034 "http large header copy: %d", r->header_in->pos - old);
|
|
|
1035
|
|
24
|
1036 r->request_length += old - r->header_in->start;
|
|
|
1037
|
|
0
|
1038 new = b->start;
|
|
|
1039
|
|
|
1040 ngx_memcpy(new, old, r->header_in->pos - old);
|
|
|
1041
|
|
|
1042 b->pos = new + (r->header_in->pos - old);
|
|
|
1043 b->last = new + (r->header_in->pos - old);
|
|
|
1044
|
|
|
1045 if (request_line) {
|
|
|
1046 r->request_start = new;
|
|
|
1047
|
|
|
1048 if (r->request_end) {
|
|
|
1049 r->request_end = new + (r->request_end - old);
|
|
|
1050 }
|
|
|
1051
|
|
|
1052 r->method_end = new + (r->method_end - old);
|
|
|
1053
|
|
|
1054 r->uri_start = new + (r->uri_start - old);
|
|
|
1055 r->uri_end = new + (r->uri_end - old);
|
|
|
1056
|
|
|
1057 if (r->schema_start) {
|
|
|
1058 r->schema_start = new + (r->schema_start - old);
|
|
|
1059 r->schema_end = new + (r->schema_end - old);
|
|
|
1060 }
|
|
|
1061
|
|
|
1062 if (r->host_start) {
|
|
|
1063 r->host_start = new + (r->host_start - old);
|
|
|
1064 r->host_end = new + (r->host_end - old);
|
|
|
1065 }
|
|
|
1066
|
|
|
1067 if (r->port_start) {
|
|
|
1068 r->port_start = new + (r->port_start - old);
|
|
|
1069 r->port_end = new + (r->port_end - old);
|
|
|
1070 }
|
|
|
1071
|
|
|
1072 if (r->uri_ext) {
|
|
|
1073 r->uri_ext = new + (r->uri_ext - old);
|
|
|
1074 }
|
|
|
1075
|
|
|
1076 if (r->args_start) {
|
|
|
1077 r->args_start = new + (r->args_start - old);
|
|
|
1078 }
|
|
|
1079
|
|
|
1080 } else {
|
|
|
1081 r->header_name_start = new;
|
|
|
1082 r->header_name_end = new + (r->header_name_end - old);
|
|
|
1083 r->header_start = new + (r->header_start - old);
|
|
|
1084 r->header_end = new + (r->header_end - old);
|
|
|
1085 }
|
|
|
1086
|
|
|
1087 r->header_in = b;
|
|
|
1088
|
|
|
1089 return NGX_OK;
|
|
|
1090 }
|
|
|
1091
|
|
|
1092
|
|
50
|
1093 static ngx_int_t
|
|
58
|
1094 ngx_http_process_header_line(ngx_http_request_t *r, ngx_table_elt_t *h,
|
|
|
1095 ngx_uint_t offset)
|
|
|
1096 {
|
|
|
1097 ngx_table_elt_t **ph;
|
|
|
1098
|
|
|
1099 ph = (ngx_table_elt_t **) ((char *) &r->headers_in + offset);
|
|
|
1100
|
|
|
1101 if (*ph == NULL) {
|
|
|
1102 *ph = h;
|
|
|
1103 }
|
|
|
1104
|
|
|
1105 return NGX_OK;
|
|
|
1106 }
|
|
|
1107
|
|
|
1108
|
|
|
1109 static ngx_int_t
|
|
|
1110 ngx_http_process_cookie(ngx_http_request_t *r, ngx_table_elt_t *h,
|
|
|
1111 ngx_uint_t offset)
|
|
|
1112 {
|
|
|
1113 ngx_table_elt_t **cookie;
|
|
|
1114
|
|
|
1115 cookie = ngx_array_push(&r->headers_in.cookies);
|
|
|
1116 if (cookie == NULL) {
|
|
|
1117 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
1118 ngx_http_close_connection(r->connection);
|
|
|
1119 return NGX_ERROR;
|
|
|
1120 }
|
|
|
1121
|
|
|
1122 *cookie = h;
|
|
|
1123
|
|
|
1124 return NGX_OK;
|
|
|
1125 }
|
|
|
1126
|
|
|
1127
|
|
|
1128 static ngx_int_t
|
|
50
|
1129 ngx_http_process_request_header(ngx_http_request_t *r)
|
|
0
|
1130 {
|
|
54
|
1131 size_t len;
|
|
|
1132 u_char *ua, *user_agent, ch;
|
|
|
1133 ngx_http_core_srv_conf_t *cscf;
|
|
0
|
1134
|
|
|
1135 if (r->headers_in.host) {
|
|
|
1136 for (len = 0; len < r->headers_in.host->value.len; len++) {
|
|
26
|
1137 ch = r->headers_in.host->value.data[len];
|
|
|
1138
|
|
|
1139 if (ch == ':') {
|
|
0
|
1140 break;
|
|
|
1141 }
|
|
26
|
1142
|
|
|
1143 r->headers_in.host->value.data[len] = ngx_tolower(ch);
|
|
0
|
1144 }
|
|
54
|
1145
|
|
58
|
1146 if (r->headers_in.host->value.data[len - 1] == '.') {
|
|
|
1147 len--;
|
|
|
1148 }
|
|
|
1149
|
|
0
|
1150 r->headers_in.host_name_len = len;
|
|
|
1151
|
|
26
|
1152 if (ngx_http_find_virtual_server(r) != NGX_OK) {
|
|
54
|
1153 ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
|
|
|
1154 "client sent invalid \"Host\" header");
|
|
|
1155
|
|
|
1156 cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
|
|
|
1157
|
|
|
1158 if (cscf->restrict_host_names == NGX_HTTP_RESTRICT_HOST_CLOSE) {
|
|
|
1159 ngx_http_close_request(r, NGX_HTTP_BAD_REQUEST);
|
|
|
1160 ngx_http_close_connection(r->connection);
|
|
|
1161 return NGX_ERROR;
|
|
|
1162 }
|
|
|
1163
|
|
|
1164 ngx_http_finalize_request(r, NGX_HTTP_INVALID_HOST);
|
|
|
1165 return NGX_ERROR;
|
|
0
|
1166 }
|
|
|
1167
|
|
|
1168 } else {
|
|
|
1169 if (r->http_version > NGX_HTTP_VERSION_10) {
|
|
54
|
1170 ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
|
|
|
1171 "client sent HTTP/1.1 request without \"Host\" header");
|
|
|
1172 ngx_http_finalize_request(r, NGX_HTTP_BAD_REQUEST);
|
|
|
1173 return NGX_ERROR;
|
|
0
|
1174 }
|
|
54
|
1175
|
|
0
|
1176 r->headers_in.host_name_len = 0;
|
|
|
1177 }
|
|
|
1178
|
|
|
1179 if (r->headers_in.content_length) {
|
|
|
1180 r->headers_in.content_length_n =
|
|
50
|
1181 ngx_atosz(r->headers_in.content_length->value.data,
|
|
0
|
1182 r->headers_in.content_length->value.len);
|
|
|
1183
|
|
|
1184 if (r->headers_in.content_length_n == NGX_ERROR) {
|
|
54
|
1185 ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
|
|
|
1186 "client sent invalid \"Content-Length\" header");
|
|
|
1187 ngx_http_finalize_request(r, NGX_HTTP_BAD_REQUEST);
|
|
|
1188 return NGX_ERROR;
|
|
0
|
1189 }
|
|
|
1190 }
|
|
|
1191
|
|
32
|
1192 if (r->method == NGX_HTTP_POST && r->headers_in.content_length_n == -1) {
|
|
54
|
1193 ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
|
|
|
1194 "client sent POST method without \"Content-Length\" header");
|
|
|
1195 ngx_http_finalize_request(r, NGX_HTTP_BAD_REQUEST);
|
|
|
1196 return NGX_ERROR;
|
|
0
|
1197 }
|
|
|
1198
|
|
|
1199 if (r->plain_http) {
|
|
54
|
1200 ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
|
|
|
1201 "client sent plain HTTP request to HTTPS port");
|
|
|
1202 ngx_http_finalize_request(r, NGX_HTTP_TO_HTTPS);
|
|
|
1203 return NGX_ERROR;
|
|
0
|
1204 }
|
|
|
1205
|
|
|
1206 if (r->headers_in.connection) {
|
|
|
1207 if (r->headers_in.connection->value.len == 5
|
|
|
1208 && ngx_strcasecmp(r->headers_in.connection->value.data, "close")
|
|
58
|
1209 == 0)
|
|
0
|
1210 {
|
|
|
1211 r->headers_in.connection_type = NGX_HTTP_CONNECTION_CLOSE;
|
|
|
1212
|
|
|
1213 } else if (r->headers_in.connection->value.len == 10
|
|
|
1214 && ngx_strcasecmp(r->headers_in.connection->value.data,
|
|
58
|
1215 "keep-alive") == 0)
|
|
0
|
1216 {
|
|
|
1217 r->headers_in.connection_type = NGX_HTTP_CONNECTION_KEEP_ALIVE;
|
|
|
1218
|
|
|
1219 if (r->headers_in.keep_alive) {
|
|
|
1220 r->headers_in.keep_alive_n =
|
|
50
|
1221 ngx_atotm(r->headers_in.keep_alive->value.data,
|
|
0
|
1222 r->headers_in.keep_alive->value.len);
|
|
|
1223 }
|
|
|
1224 }
|
|
|
1225 }
|
|
|
1226
|
|
|
1227 if (r->headers_in.user_agent) {
|
|
|
1228
|
|
|
1229 /*
|
|
|
1230 * check some widespread browsers while the headers are still
|
|
|
1231 * in CPU cache
|
|
|
1232 */
|
|
|
1233
|
|
|
1234 user_agent = r->headers_in.user_agent->value.data;
|
|
|
1235
|
|
|
1236 ua = (u_char *) ngx_strstr(user_agent, "MSIE");
|
|
|
1237
|
|
|
1238 if (ua && ua + 8 < user_agent + r->headers_in.user_agent->value.len) {
|
|
|
1239
|
|
|
1240 r->headers_in.msie = 1;
|
|
|
1241
|
|
|
1242 if (ua[4] == ' ' && ua[5] == '4' && ua[6] == '.') {
|
|
|
1243 r->headers_in.msie4 = 1;
|
|
|
1244 }
|
|
|
1245
|
|
|
1246 #if 0
|
|
|
1247 /* MSIE ignores the SSL "close notify" alert */
|
|
22
|
1248 if (c->ssl) {
|
|
|
1249 r->connection->ssl->no_send_shut = 1;
|
|
|
1250 }
|
|
0
|
1251 #endif
|
|
|
1252 }
|
|
|
1253
|
|
|
1254 if (ngx_strstr(user_agent, "Opera")) {
|
|
|
1255 r->headers_in.opera = 1;
|
|
|
1256 r->headers_in.msie = 0;
|
|
|
1257 r->headers_in.msie4 = 0;
|
|
|
1258 }
|
|
|
1259
|
|
|
1260 if (!r->headers_in.msie && !r->headers_in.opera) {
|
|
|
1261
|
|
|
1262 if (ngx_strstr(user_agent, "Gecko/")) {
|
|
|
1263 r->headers_in.gecko = 1;
|
|
|
1264
|
|
|
1265 } else if (ngx_strstr(user_agent, "Konqueror")) {
|
|
|
1266 r->headers_in.konqueror = 1;
|
|
|
1267 }
|
|
|
1268 }
|
|
|
1269 }
|
|
|
1270
|
|
|
1271 return NGX_OK;
|
|
|
1272 }
|
|
|
1273
|
|
|
1274
|
|
50
|
1275 static ngx_int_t
|
|
|
1276 ngx_http_find_virtual_server(ngx_http_request_t *r)
|
|
26
|
1277 {
|
|
|
1278 ngx_int_t rc;
|
|
58
|
1279 ngx_uint_t i, n, key;
|
|
26
|
1280 ngx_http_server_name_t *name;
|
|
56
|
1281 ngx_http_core_loc_conf_t *clcf;
|
|
26
|
1282 ngx_http_core_srv_conf_t *cscf;
|
|
56
|
1283 ngx_http_core_main_conf_t *cmcf;
|
|
26
|
1284
|
|
|
1285 if (r->virtual_names->hash) {
|
|
|
1286 cmcf = ngx_http_get_module_main_conf(r, ngx_http_core_module);
|
|
|
1287
|
|
|
1288 ngx_http_server_names_hash_key(key,
|
|
|
1289 r->headers_in.host->value.data,
|
|
|
1290 r->headers_in.host_name_len,
|
|
|
1291 cmcf->server_names_hash);
|
|
|
1292
|
|
|
1293 name = r->virtual_names->hash[key].elts;
|
|
|
1294 n = r->virtual_names->hash[key].nelts;
|
|
|
1295
|
|
|
1296 } else {
|
|
|
1297 name = r->virtual_names->names.elts;
|
|
|
1298 n = r->virtual_names->names.nelts;
|
|
|
1299 }
|
|
|
1300
|
|
|
1301 for (i = 0; i < n; i++) {
|
|
|
1302
|
|
|
1303 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1304 "server name: %V", &name[i].name);
|
|
|
1305
|
|
|
1306 if (r->headers_in.host_name_len != name[i].name.len) {
|
|
|
1307 continue;
|
|
|
1308 }
|
|
|
1309
|
|
|
1310 rc = ngx_strncmp(r->headers_in.host->value.data,
|
|
|
1311 name[i].name.data, name[i].name.len);
|
|
|
1312
|
|
|
1313 if (rc == 0) {
|
|
|
1314 r->server_name = name[i].name;
|
|
58
|
1315 goto found;
|
|
26
|
1316 }
|
|
|
1317
|
|
|
1318 if (rc < 0) {
|
|
|
1319 /* the server names are lexicographically sorted */
|
|
|
1320 break;
|
|
|
1321 }
|
|
|
1322 }
|
|
|
1323
|
|
58
|
1324 if (r->virtual_names->wildcards.nelts) {
|
|
26
|
1325
|
|
|
1326 name = r->virtual_names->wildcards.elts;
|
|
|
1327 for (i = 0; i < r->virtual_names->wildcards.nelts; i++) {
|
|
|
1328
|
|
|
1329 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1330 "server name: %V", &name[i].name);
|
|
|
1331
|
|
|
1332 if (r->headers_in.host_name_len <= name[i].name.len) {
|
|
|
1333 continue;
|
|
|
1334 }
|
|
|
1335
|
|
|
1336 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1337 "server name: %s",
|
|
|
1338 r->headers_in.host->value.data
|
|
|
1339 + (r->headers_in.host_name_len - name[i].name.len));
|
|
|
1340
|
|
|
1341 if (ngx_strncmp(r->headers_in.host->value.data
|
|
|
1342 + (r->headers_in.host_name_len - name[i].name.len),
|
|
|
1343 name[i].name.data, name[i].name.len) == 0)
|
|
|
1344 {
|
|
|
1345 r->server_name.len = r->headers_in.host_name_len;
|
|
|
1346 r->server_name.data = r->headers_in.host->value.data;
|
|
|
1347
|
|
58
|
1348 goto found;
|
|
26
|
1349 }
|
|
|
1350 }
|
|
|
1351 }
|
|
|
1352
|
|
58
|
1353 cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
|
|
|
1354
|
|
|
1355 if (cscf->restrict_host_names == NGX_HTTP_RESTRICT_HOST_OFF) {
|
|
26
|
1356 return NGX_OK;
|
|
|
1357 }
|
|
|
1358
|
|
58
|
1359 return NGX_ERROR;
|
|
|
1360
|
|
|
1361 found:
|
|
|
1362
|
|
|
1363 r->srv_conf = name[i].core_srv_conf->ctx->srv_conf;
|
|
|
1364 r->loc_conf = name[i].core_srv_conf->ctx->loc_conf;
|
|
|
1365
|
|
|
1366 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
1367 r->connection->log->file = clcf->err_log->file;
|
|
|
1368
|
|
|
1369 if (!(r->connection->log->log_level & NGX_LOG_DEBUG_CONNECTION)) {
|
|
|
1370 r->connection->log->log_level = clcf->err_log->log_level;
|
|
26
|
1371 }
|
|
|
1372
|
|
|
1373 return NGX_OK;
|
|
|
1374 }
|
|
|
1375
|
|
|
1376
|
|
58
|
1377 static void
|
|
|
1378 ngx_http_request_handler(ngx_event_t *ev)
|
|
|
1379 {
|
|
|
1380 ngx_connection_t *c;
|
|
|
1381 ngx_http_request_t *r;
|
|
|
1382
|
|
|
1383 c = ev->data;
|
|
|
1384 r = c->data;
|
|
|
1385
|
|
|
1386 if (ev->write) {
|
|
|
1387 r->write_event_handler(r);
|
|
|
1388
|
|
|
1389 } else {
|
|
|
1390 r->read_event_handler(r);
|
|
|
1391 }
|
|
|
1392 }
|
|
|
1393
|
|
|
1394
|
|
50
|
1395 void
|
|
58
|
1396 ngx_http_finalize_request(ngx_http_request_t *r, ngx_int_t rc)
|
|
0
|
1397 {
|
|
58
|
1398 ngx_http_request_t *pr;
|
|
0
|
1399 ngx_http_core_loc_conf_t *clcf;
|
|
|
1400
|
|
58
|
1401 if (rc == NGX_DONE) {
|
|
|
1402 /* r may be already destroyed when rc == NGX_DONE */
|
|
|
1403 return;
|
|
|
1404 }
|
|
|
1405
|
|
|
1406 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1407 "http finalize request: %d, \"%V\"", rc, &r->uri);
|
|
|
1408
|
|
60
|
1409 if (r->parent
|
|
|
1410 && (rc >= NGX_HTTP_SPECIAL_RESPONSE || rc == NGX_HTTP_NO_CONTENT))
|
|
|
1411 {
|
|
58
|
1412 ngx_http_finalize_request(r, ngx_http_special_response_handler(r, rc));
|
|
0
|
1413 return;
|
|
|
1414 }
|
|
|
1415
|
|
58
|
1416 if (r->parent || rc == NGX_AGAIN) {
|
|
|
1417 r->write_event_handler = ngx_http_writer;
|
|
|
1418 }
|
|
|
1419
|
|
|
1420 r->done = 1;
|
|
|
1421
|
|
|
1422 if (r != r->connection->data) {
|
|
|
1423 return;
|
|
|
1424 }
|
|
|
1425
|
|
|
1426 if (r->parent) {
|
|
|
1427
|
|
|
1428 pr = r->parent;
|
|
|
1429
|
|
|
1430 if (rc != NGX_AGAIN) {
|
|
|
1431 pr->connection->data = pr;
|
|
|
1432 }
|
|
|
1433
|
|
|
1434 if (pr->postponed) {
|
|
|
1435
|
|
|
1436 if (rc != NGX_AGAIN && pr->postponed->request == r) {
|
|
|
1437 pr->postponed = pr->postponed->next;
|
|
|
1438
|
|
|
1439 if (pr->postponed == NULL) {
|
|
|
1440 return;
|
|
|
1441 }
|
|
|
1442 }
|
|
|
1443
|
|
|
1444 if (pr->done) {
|
|
|
1445 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1446 "http wake request: \"%V\"", &pr->uri);
|
|
|
1447
|
|
|
1448 pr->write_event_handler(pr);
|
|
|
1449 }
|
|
|
1450 }
|
|
|
1451
|
|
|
1452 return;
|
|
|
1453 }
|
|
0
|
1454
|
|
60
|
1455 if (rc >= NGX_HTTP_SPECIAL_RESPONSE || rc == NGX_HTTP_NO_CONTENT) {
|
|
0
|
1456
|
|
|
1457 if (r->connection->read->timer_set) {
|
|
|
1458 ngx_del_timer(r->connection->read);
|
|
|
1459 }
|
|
|
1460
|
|
|
1461 if (r->connection->write->timer_set) {
|
|
|
1462 ngx_del_timer(r->connection->write);
|
|
|
1463 }
|
|
|
1464
|
|
|
1465 if (rc == NGX_HTTP_CLIENT_CLOSED_REQUEST || r->closed) {
|
|
|
1466 ngx_http_close_request(r, 0);
|
|
|
1467 ngx_http_close_connection(r->connection);
|
|
|
1468 return;
|
|
|
1469 }
|
|
|
1470
|
|
|
1471 ngx_http_finalize_request(r, ngx_http_special_response_handler(r, rc));
|
|
|
1472
|
|
|
1473 return;
|
|
|
1474
|
|
|
1475 } else if (rc == NGX_ERROR) {
|
|
|
1476 ngx_http_close_request(r, 0);
|
|
|
1477 ngx_http_close_connection(r->connection);
|
|
|
1478 return;
|
|
|
1479
|
|
58
|
1480 } else if (rc == NGX_AGAIN || r->out) {
|
|
0
|
1481 ngx_http_set_write_handler(r);
|
|
|
1482 return;
|
|
|
1483 }
|
|
|
1484
|
|
|
1485 if (r->connection->read->timer_set) {
|
|
|
1486 ngx_del_timer(r->connection->read);
|
|
|
1487 }
|
|
|
1488
|
|
|
1489 if (r->connection->write->timer_set) {
|
|
|
1490 r->connection->write->delayed = 0;
|
|
|
1491 ngx_del_timer(r->connection->write);
|
|
|
1492 }
|
|
|
1493
|
|
|
1494 if (r->connection->read->pending_eof) {
|
|
22
|
1495 #if (NGX_HAVE_KQUEUE)
|
|
0
|
1496 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log,
|
|
|
1497 r->connection->read->kq_errno,
|
|
|
1498 "kevent() reported about an closed connection");
|
|
|
1499 #endif
|
|
|
1500 ngx_http_close_request(r, 0);
|
|
|
1501 ngx_http_close_connection(r->connection);
|
|
|
1502 return;
|
|
|
1503 }
|
|
|
1504
|
|
|
1505 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
1506
|
|
|
1507 if (!ngx_terminate
|
|
|
1508 && !ngx_exiting
|
|
|
1509 && r->keepalive != 0
|
|
|
1510 && clcf->keepalive_timeout > 0)
|
|
|
1511 {
|
|
|
1512 ngx_http_set_keepalive(r);
|
|
|
1513 return;
|
|
|
1514
|
|
|
1515 } else if (r->lingering_close && clcf->lingering_timeout > 0) {
|
|
|
1516 ngx_http_set_lingering_close(r);
|
|
|
1517 return;
|
|
|
1518 }
|
|
|
1519
|
|
|
1520 ngx_http_close_request(r, 0);
|
|
|
1521 ngx_http_close_connection(r->connection);
|
|
|
1522 }
|
|
|
1523
|
|
|
1524
|
|
50
|
1525 static void
|
|
|
1526 ngx_http_set_write_handler(ngx_http_request_t *r)
|
|
0
|
1527 {
|
|
|
1528 ngx_event_t *wev;
|
|
|
1529 ngx_http_core_loc_conf_t *clcf;
|
|
|
1530
|
|
58
|
1531 r->http_state = NGX_HTTP_WRITING_REQUEST_STATE;
|
|
|
1532
|
|
0
|
1533 wev = r->connection->write;
|
|
|
1534
|
|
|
1535 if (wev->ready && wev->delayed) {
|
|
|
1536 return;
|
|
|
1537 }
|
|
|
1538
|
|
58
|
1539 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
0
|
1540 if (!wev->delayed) {
|
|
|
1541 ngx_add_timer(wev, clcf->send_timeout);
|
|
|
1542 }
|
|
|
1543
|
|
2
|
1544 if (ngx_handle_write_event(wev, clcf->send_lowat) == NGX_ERROR) {
|
|
0
|
1545 ngx_http_close_request(r, 0);
|
|
|
1546 ngx_http_close_connection(r->connection);
|
|
|
1547 }
|
|
|
1548 }
|
|
|
1549
|
|
|
1550
|
|
58
|
1551 static void
|
|
|
1552 ngx_http_writer(ngx_http_request_t *r)
|
|
0
|
1553 {
|
|
|
1554 int rc;
|
|
58
|
1555 ngx_event_t *wev;
|
|
0
|
1556 ngx_connection_t *c;
|
|
|
1557 ngx_http_core_loc_conf_t *clcf;
|
|
|
1558
|
|
58
|
1559 c = r->connection;
|
|
|
1560 wev = c->write;
|
|
|
1561
|
|
|
1562 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, wev->log, 0,
|
|
|
1563 "http writer handler: \"%V\"", &r->uri);
|
|
0
|
1564
|
|
|
1565 if (wev->timedout) {
|
|
|
1566 if (!wev->delayed) {
|
|
54
|
1567 ngx_log_error(NGX_LOG_INFO, c->log, NGX_ETIMEDOUT,
|
|
|
1568 "client timed out");
|
|
|
1569 c->timedout = 1;
|
|
|
1570 ngx_http_close_request(r, NGX_HTTP_REQUEST_TIME_OUT);
|
|
|
1571 ngx_http_close_connection(c);
|
|
0
|
1572 return;
|
|
|
1573 }
|
|
|
1574
|
|
|
1575 wev->timedout = 0;
|
|
|
1576 wev->delayed = 0;
|
|
|
1577
|
|
|
1578 if (!wev->ready) {
|
|
|
1579 clcf = ngx_http_get_module_loc_conf(r->main ? r->main : r,
|
|
|
1580 ngx_http_core_module);
|
|
|
1581 ngx_add_timer(wev, clcf->send_timeout);
|
|
|
1582
|
|
2
|
1583 if (ngx_handle_write_event(wev, clcf->send_lowat) == NGX_ERROR) {
|
|
0
|
1584 ngx_http_close_request(r, 0);
|
|
|
1585 ngx_http_close_connection(r->connection);
|
|
|
1586 }
|
|
|
1587
|
|
|
1588 return;
|
|
|
1589 }
|
|
|
1590
|
|
|
1591 } else {
|
|
|
1592 if (wev->delayed) {
|
|
|
1593 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, wev->log, 0,
|
|
|
1594 "http writer delayed");
|
|
|
1595
|
|
|
1596 clcf = ngx_http_get_module_loc_conf(r->main ? r->main : r,
|
|
|
1597 ngx_http_core_module);
|
|
2
|
1598
|
|
|
1599 if (ngx_handle_write_event(wev, clcf->send_lowat) == NGX_ERROR) {
|
|
0
|
1600 ngx_http_close_request(r, 0);
|
|
|
1601 ngx_http_close_connection(r->connection);
|
|
|
1602 }
|
|
|
1603
|
|
|
1604 return;
|
|
|
1605 }
|
|
|
1606 }
|
|
|
1607
|
|
58
|
1608 if (r->postponed) {
|
|
|
1609 rc = ngx_http_postponed_handler(r);
|
|
|
1610
|
|
|
1611 if (rc == NGX_DONE) {
|
|
|
1612 /* r may be already destroyed when rc == NGX_DONE */
|
|
|
1613 return;
|
|
|
1614 }
|
|
|
1615
|
|
|
1616 } else {
|
|
|
1617 rc = ngx_http_output_filter(r, NULL);
|
|
|
1618
|
|
|
1619 }
|
|
|
1620
|
|
|
1621 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
|
1622 "http writer output filter: %d, \"%V\"", rc, &r->uri);
|
|
0
|
1623
|
|
|
1624 if (rc == NGX_AGAIN) {
|
|
|
1625 clcf = ngx_http_get_module_loc_conf(r->main ? r->main : r,
|
|
|
1626 ngx_http_core_module);
|
|
|
1627 if (!wev->ready && !wev->delayed) {
|
|
|
1628 ngx_add_timer(wev, clcf->send_timeout);
|
|
|
1629 }
|
|
|
1630
|
|
2
|
1631 if (ngx_handle_write_event(wev, clcf->send_lowat) == NGX_ERROR) {
|
|
0
|
1632 ngx_http_close_request(r, 0);
|
|
|
1633 ngx_http_close_connection(r->connection);
|
|
|
1634 }
|
|
|
1635
|
|
|
1636 return;
|
|
|
1637 }
|
|
|
1638
|
|
58
|
1639 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, wev->log, 0,
|
|
|
1640 "http writer done: \"%V\"", &r->uri);
|
|
0
|
1641
|
|
|
1642 ngx_http_finalize_request(r, rc);
|
|
|
1643 }
|
|
|
1644
|
|
|
1645
|
|
58
|
1646 static ngx_int_t
|
|
|
1647 ngx_http_postponed_handler(ngx_http_request_t *r)
|
|
|
1648 {
|
|
|
1649 ngx_int_t rc;
|
|
|
1650 ngx_http_postponed_request_t *pr;
|
|
|
1651
|
|
|
1652 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1653 "http postpone handler \"%V\"", &r->uri);
|
|
|
1654
|
|
|
1655 pr = r->postponed;
|
|
|
1656
|
|
|
1657 if (pr->request == NULL) {
|
|
|
1658 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1659 "http postponed data \"%V\" %p", &r->uri, pr->out);
|
|
|
1660
|
|
|
1661 rc = ngx_http_output_filter(r, NULL);
|
|
|
1662
|
|
|
1663 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1664 "http postponed output filter: %d", rc);
|
|
|
1665
|
|
|
1666 if (rc == NGX_AGAIN) {
|
|
|
1667 return rc;
|
|
|
1668 }
|
|
|
1669
|
|
|
1670 if (rc == NGX_ERROR) {
|
|
|
1671 /* NGX_ERROR may be returned by any filter */
|
|
|
1672 r->connection->write->error = 1;
|
|
|
1673
|
|
|
1674 ngx_http_finalize_request(r, rc);
|
|
|
1675
|
|
|
1676 return NGX_DONE;
|
|
|
1677 }
|
|
|
1678
|
|
|
1679 pr = r->postponed;
|
|
|
1680
|
|
|
1681 if (pr == NULL) {
|
|
|
1682 return NGX_OK;
|
|
|
1683 }
|
|
|
1684 }
|
|
|
1685
|
|
|
1686 r = pr->request;
|
|
|
1687 r->connection->data = r;
|
|
|
1688
|
|
|
1689 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1690 "http postponed request \"%V\"", &r->uri);
|
|
|
1691
|
|
|
1692 r->write_event_handler(r);
|
|
|
1693
|
|
|
1694 return NGX_DONE;
|
|
|
1695 }
|
|
|
1696
|
|
|
1697
|
|
50
|
1698 static void
|
|
58
|
1699 ngx_http_block_read(ngx_http_request_t *r)
|
|
0
|
1700 {
|
|
58
|
1701 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1702 "http read blocked");
|
|
0
|
1703
|
|
|
1704 /* aio does not call this handler */
|
|
|
1705
|
|
58
|
1706 if ((ngx_event_flags & NGX_USE_LEVEL_EVENT)
|
|
|
1707 && r->connection->read->active)
|
|
|
1708 {
|
|
|
1709 if (ngx_del_event(r->connection->read, NGX_READ_EVENT, 0)
|
|
|
1710 == NGX_ERROR)
|
|
|
1711 {
|
|
0
|
1712 ngx_http_close_request(r, 0);
|
|
58
|
1713 ngx_http_close_connection(r->connection);
|
|
0
|
1714 }
|
|
|
1715 }
|
|
|
1716 }
|
|
|
1717
|
|
|
1718
|
|
50
|
1719 ngx_int_t
|
|
|
1720 ngx_http_discard_body(ngx_http_request_t *r)
|
|
0
|
1721 {
|
|
|
1722 ssize_t size;
|
|
|
1723 ngx_event_t *rev;
|
|
|
1724
|
|
70
|
1725 if (r->main) {
|
|
|
1726 return NGX_OK;
|
|
|
1727 }
|
|
|
1728
|
|
0
|
1729 rev = r->connection->read;
|
|
|
1730
|
|
|
1731 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, rev->log, 0, "http set discard body");
|
|
|
1732
|
|
|
1733 if (rev->timer_set) {
|
|
|
1734 ngx_del_timer(rev);
|
|
|
1735 }
|
|
|
1736
|
|
|
1737 if (r->headers_in.content_length_n <= 0) {
|
|
|
1738 return NGX_OK;
|
|
|
1739 }
|
|
|
1740
|
|
|
1741 size = r->header_in->last - r->header_in->pos;
|
|
|
1742
|
|
|
1743 if (size) {
|
|
|
1744 if (r->headers_in.content_length_n > size) {
|
|
|
1745 r->headers_in.content_length_n -= size;
|
|
|
1746
|
|
|
1747 } else {
|
|
|
1748 r->header_in->pos += r->headers_in.content_length_n;
|
|
|
1749 r->headers_in.content_length_n = 0;
|
|
|
1750 return NGX_OK;
|
|
|
1751 }
|
|
|
1752 }
|
|
|
1753
|
|
58
|
1754 r->read_event_handler = ngx_http_read_discarded_body_handler;
|
|
|
1755
|
|
|
1756 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) {
|
|
0
|
1757 return NGX_HTTP_INTERNAL_SERVER_ERROR;
|
|
|
1758 }
|
|
|
1759
|
|
|
1760 return ngx_http_read_discarded_body(r);
|
|
|
1761 }
|
|
|
1762
|
|
|
1763
|
|
50
|
1764 static void
|
|
58
|
1765 ngx_http_read_discarded_body_handler(ngx_http_request_t *r)
|
|
0
|
1766 {
|
|
58
|
1767 ngx_int_t rc;
|
|
0
|
1768
|
|
|
1769 rc = ngx_http_read_discarded_body(r);
|
|
|
1770
|
|
|
1771 if (rc == NGX_AGAIN) {
|
|
58
|
1772 if (ngx_handle_read_event(r->connection->read, 0) == NGX_ERROR) {
|
|
0
|
1773 ngx_http_close_request(r, rc);
|
|
58
|
1774 ngx_http_close_connection(r->connection);
|
|
0
|
1775 return;
|
|
|
1776 }
|
|
|
1777 }
|
|
|
1778
|
|
|
1779 if (rc != NGX_OK) {
|
|
|
1780 ngx_http_close_request(r, rc);
|
|
58
|
1781 ngx_http_close_connection(r->connection);
|
|
0
|
1782 }
|
|
|
1783 }
|
|
|
1784
|
|
|
1785
|
|
50
|
1786 static ngx_int_t
|
|
|
1787 ngx_http_read_discarded_body(ngx_http_request_t *r)
|
|
0
|
1788 {
|
|
|
1789 ssize_t size, n;
|
|
|
1790 u_char buffer[NGX_HTTP_DISCARD_BUFFER_SIZE];
|
|
|
1791
|
|
|
1792 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1793 "http read discarded body");
|
|
|
1794
|
|
|
1795 if (r->headers_in.content_length_n == 0) {
|
|
|
1796 return NGX_OK;
|
|
|
1797 }
|
|
|
1798
|
|
|
1799
|
|
|
1800 size = r->headers_in.content_length_n;
|
|
|
1801
|
|
|
1802 if (size > NGX_HTTP_DISCARD_BUFFER_SIZE) {
|
|
|
1803 size = NGX_HTTP_DISCARD_BUFFER_SIZE;
|
|
|
1804 }
|
|
|
1805
|
|
|
1806 n = r->connection->recv(r->connection, buffer, size);
|
|
|
1807
|
|
|
1808 if (n == NGX_ERROR) {
|
|
|
1809
|
|
|
1810 r->closed = 1;
|
|
|
1811
|
|
|
1812 /*
|
|
|
1813 * if a client request body is discarded then we already set
|
|
|
1814 * some HTTP response code for client and we can ignore the error
|
|
|
1815 */
|
|
|
1816
|
|
|
1817 return NGX_OK;
|
|
|
1818 }
|
|
|
1819
|
|
|
1820 if (n == NGX_AGAIN) {
|
|
|
1821 return NGX_AGAIN;
|
|
|
1822 }
|
|
|
1823
|
|
|
1824 r->headers_in.content_length_n -= n;
|
|
|
1825
|
|
|
1826 return NGX_OK;
|
|
|
1827 }
|
|
|
1828
|
|
|
1829
|
|
50
|
1830 static void
|
|
|
1831 ngx_http_set_keepalive(ngx_http_request_t *r)
|
|
0
|
1832 {
|
|
2
|
1833 int tcp_nodelay;
|
|
0
|
1834 ngx_int_t i;
|
|
|
1835 ngx_buf_t *b, *f;
|
|
|
1836 ngx_event_t *rev, *wev;
|
|
|
1837 ngx_connection_t *c;
|
|
|
1838 ngx_http_connection_t *hc;
|
|
|
1839 ngx_http_core_srv_conf_t *cscf;
|
|
|
1840 ngx_http_core_loc_conf_t *clcf;
|
|
|
1841
|
|
|
1842 c = r->connection;
|
|
|
1843 rev = c->read;
|
|
|
1844
|
|
|
1845 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "set http keepalive handler");
|
|
|
1846
|
|
32
|
1847 c->log->action = "closing request";
|
|
0
|
1848
|
|
|
1849 hc = r->http_connection;
|
|
|
1850 b = r->header_in;
|
|
|
1851
|
|
|
1852 if (b->pos < b->last) {
|
|
|
1853
|
|
|
1854 /* the pipelined request */
|
|
|
1855
|
|
|
1856 if (b != c->buffer) {
|
|
|
1857
|
|
4
|
1858 /*
|
|
|
1859 * If the large header buffers were allocated while the previous
|
|
|
1860 * request processing then we do not use c->buffer for
|
|
|
1861 * the pipelined request (see ngx_http_init_request()).
|
|
|
1862 *
|
|
|
1863 * Now we would move the large header buffers to the free list.
|
|
|
1864 */
|
|
0
|
1865
|
|
|
1866 cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
|
|
|
1867
|
|
|
1868 if (hc->free == NULL) {
|
|
|
1869 hc->free = ngx_palloc(c->pool,
|
|
|
1870 cscf->large_client_header_buffers.num * sizeof(ngx_buf_t *));
|
|
|
1871
|
|
|
1872 if (hc->free == NULL) {
|
|
26
|
1873 ngx_http_close_request(r, 0);
|
|
0
|
1874 ngx_http_close_connection(c);
|
|
|
1875 return;
|
|
|
1876 }
|
|
|
1877 }
|
|
|
1878
|
|
|
1879 for (i = 0; i < hc->nbusy - 1; i++) {
|
|
|
1880 f = hc->busy[i];
|
|
|
1881 hc->free[hc->nfree++] = f;
|
|
|
1882 f->pos = f->start;
|
|
|
1883 f->last = f->start;
|
|
|
1884 }
|
|
|
1885
|
|
|
1886 hc->busy[0] = b;
|
|
|
1887 hc->nbusy = 1;
|
|
|
1888 }
|
|
|
1889 }
|
|
|
1890
|
|
26
|
1891 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
1892
|
|
0
|
1893 ngx_http_close_request(r, 0);
|
|
|
1894 c->data = hc;
|
|
|
1895
|
|
|
1896 ngx_add_timer(rev, clcf->keepalive_timeout);
|
|
|
1897
|
|
58
|
1898 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) {
|
|
0
|
1899 ngx_http_close_connection(c);
|
|
|
1900 return;
|
|
|
1901 }
|
|
|
1902
|
|
|
1903 wev = c->write;
|
|
58
|
1904 wev->handler = ngx_http_empty_handler;
|
|
0
|
1905
|
|
|
1906 if (b->pos < b->last) {
|
|
|
1907
|
|
|
1908 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "pipelined request");
|
|
|
1909
|
|
|
1910 hc->pipeline = 1;
|
|
32
|
1911 c->log->action = "reading client pipelined request line";
|
|
0
|
1912 ngx_http_init_request(rev);
|
|
|
1913 return;
|
|
|
1914 }
|
|
|
1915
|
|
|
1916 hc->pipeline = 0;
|
|
|
1917
|
|
4
|
1918 /*
|
|
|
1919 * To keep a memory footprint as small as possible for an idle
|
|
|
1920 * keepalive connection we try to free the ngx_http_request_t and
|
|
|
1921 * c->buffer's memory if they were allocated outside the c->pool.
|
|
|
1922 * The large header buffers are always allocated outside the c->pool and
|
|
|
1923 * are freed too.
|
|
|
1924 */
|
|
|
1925
|
|
0
|
1926 if (ngx_pfree(c->pool, r) == NGX_OK) {
|
|
|
1927 hc->request = NULL;
|
|
|
1928 }
|
|
|
1929
|
|
|
1930 b = c->buffer;
|
|
|
1931
|
|
|
1932 if (ngx_pfree(c->pool, b->start) == NGX_OK) {
|
|
4
|
1933
|
|
|
1934 /*
|
|
|
1935 * the special note for ngx_http_keepalive_handler() that
|
|
|
1936 * c->buffer's memory was freed
|
|
|
1937 */
|
|
|
1938
|
|
0
|
1939 b->pos = NULL;
|
|
|
1940
|
|
|
1941 } else {
|
|
|
1942 b->pos = b->start;
|
|
|
1943 b->last = b->start;
|
|
|
1944 }
|
|
|
1945
|
|
10
|
1946 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, c->log, 0, "hc free: %p %d",
|
|
0
|
1947 hc->free, hc->nfree);
|
|
|
1948
|
|
|
1949 if (hc->free) {
|
|
|
1950 for (i = 0; i < hc->nfree; i++) {
|
|
|
1951 ngx_pfree(c->pool, hc->free[i]);
|
|
|
1952 hc->free[i] = NULL;
|
|
|
1953 }
|
|
|
1954
|
|
|
1955 hc->nfree = 0;
|
|
|
1956 }
|
|
|
1957
|
|
10
|
1958 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, c->log, 0, "hc busy: %p %d",
|
|
0
|
1959 hc->busy, hc->nbusy);
|
|
|
1960
|
|
|
1961 if (hc->busy) {
|
|
|
1962 for (i = 0; i < hc->nbusy; i++) {
|
|
|
1963 ngx_pfree(c->pool, hc->busy[i]);
|
|
|
1964 hc->busy[i] = NULL;
|
|
|
1965 }
|
|
|
1966
|
|
|
1967 hc->nbusy = 0;
|
|
|
1968 }
|
|
|
1969
|
|
58
|
1970 rev->handler = ngx_http_keepalive_handler;
|
|
0
|
1971
|
|
|
1972 if (wev->active) {
|
|
4
|
1973 if (ngx_event_flags & NGX_USE_KQUEUE_EVENT) {
|
|
0
|
1974 if (ngx_del_event(wev, NGX_WRITE_EVENT, NGX_DISABLE_EVENT)
|
|
|
1975 == NGX_ERROR)
|
|
|
1976 {
|
|
|
1977 ngx_http_close_connection(c);
|
|
|
1978 return;
|
|
|
1979 }
|
|
|
1980
|
|
|
1981 } else if (ngx_event_flags & NGX_USE_LEVEL_EVENT) {
|
|
|
1982 if (ngx_del_event(wev, NGX_WRITE_EVENT, 0) == NGX_ERROR) {
|
|
|
1983 ngx_http_close_connection(c);
|
|
|
1984 return;
|
|
|
1985 }
|
|
|
1986 }
|
|
|
1987 }
|
|
|
1988
|
|
32
|
1989 c->log->action = "keepalive";
|
|
0
|
1990
|
|
|
1991 if (c->tcp_nopush == NGX_TCP_NOPUSH_SET) {
|
|
50
|
1992 if (ngx_tcp_push(c->fd) == -1) {
|
|
0
|
1993 ngx_connection_error(c, ngx_socket_errno, ngx_tcp_push_n " failed");
|
|
|
1994 ngx_http_close_connection(c);
|
|
|
1995 return;
|
|
|
1996 }
|
|
2
|
1997
|
|
0
|
1998 c->tcp_nopush = NGX_TCP_NOPUSH_UNSET;
|
|
22
|
1999 tcp_nodelay = ngx_tcp_nodelay_and_tcp_nopush ? 1 : 0;
|
|
2
|
2000
|
|
|
2001 } else {
|
|
22
|
2002 tcp_nodelay = 1;
|
|
|
2003 }
|
|
|
2004
|
|
32
|
2005 if (tcp_nodelay
|
|
|
2006 && clcf->tcp_nodelay
|
|
|
2007 && c->tcp_nodelay == NGX_TCP_NODELAY_UNSET)
|
|
|
2008 {
|
|
22
|
2009 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "tcp_nodelay");
|
|
|
2010
|
|
|
2011 if (setsockopt(c->fd, IPPROTO_TCP, TCP_NODELAY,
|
|
|
2012 (const void *) &tcp_nodelay, sizeof(int)) == -1)
|
|
|
2013 {
|
|
|
2014 ngx_connection_error(c, ngx_socket_errno,
|
|
|
2015 "setsockopt(TCP_NODELAY) failed");
|
|
|
2016 ngx_http_close_connection(c);
|
|
|
2017 return;
|
|
2
|
2018 }
|
|
22
|
2019
|
|
32
|
2020 c->tcp_nodelay = NGX_TCP_NODELAY_SET;
|
|
0
|
2021 }
|
|
|
2022
|
|
|
2023 #if 0
|
|
4
|
2024 /* if ngx_http_request_t was freed then we need some other place */
|
|
0
|
2025 r->http_state = NGX_HTTP_KEEPALIVE_STATE;
|
|
|
2026 #endif
|
|
|
2027
|
|
|
2028 if (rev->ready) {
|
|
|
2029 ngx_http_keepalive_handler(rev);
|
|
|
2030 }
|
|
|
2031 }
|
|
|
2032
|
|
|
2033
|
|
50
|
2034 static void
|
|
|
2035 ngx_http_keepalive_handler(ngx_event_t *rev)
|
|
0
|
2036 {
|
|
50
|
2037 size_t size;
|
|
|
2038 ssize_t n;
|
|
|
2039 ngx_buf_t *b;
|
|
|
2040 ngx_connection_t *c;
|
|
0
|
2041
|
|
|
2042 c = rev->data;
|
|
|
2043
|
|
|
2044 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "http keepalive handler");
|
|
|
2045
|
|
|
2046 if (rev->timedout) {
|
|
|
2047 ngx_http_close_connection(c);
|
|
|
2048 return;
|
|
|
2049 }
|
|
|
2050
|
|
18
|
2051 #if (NGX_HAVE_KQUEUE)
|
|
0
|
2052
|
|
4
|
2053 if (ngx_event_flags & NGX_USE_KQUEUE_EVENT) {
|
|
0
|
2054 if (rev->pending_eof) {
|
|
32
|
2055 c->log->handler = NULL;
|
|
0
|
2056 ngx_log_error(NGX_LOG_INFO, c->log, rev->kq_errno,
|
|
10
|
2057 "kevent() reported that client %V closed "
|
|
32
|
2058 "keepalive connection", &c->addr_text);
|
|
22
|
2059 #if (NGX_HTTP_SSL)
|
|
|
2060 if (c->ssl) {
|
|
|
2061 c->ssl->no_send_shut = 1;
|
|
|
2062 }
|
|
|
2063 #endif
|
|
0
|
2064 ngx_http_close_connection(c);
|
|
|
2065 return;
|
|
|
2066 }
|
|
|
2067 }
|
|
|
2068
|
|
|
2069 #endif
|
|
|
2070
|
|
|
2071 b = c->buffer;
|
|
|
2072 size = b->end - b->start;
|
|
|
2073
|
|
|
2074 if (b->pos == NULL) {
|
|
4
|
2075
|
|
|
2076 /*
|
|
|
2077 * The c->buffer's memory was freed by ngx_http_set_keepalive().
|
|
|
2078 * However, the c->buffer->start and c->buffer->end were not changed
|
|
|
2079 * to keep the buffer size.
|
|
|
2080 */
|
|
|
2081
|
|
50
|
2082 b->pos = ngx_palloc(c->pool, size);
|
|
|
2083 if (b->pos == NULL) {
|
|
0
|
2084 ngx_http_close_connection(c);
|
|
|
2085 return;
|
|
|
2086 }
|
|
|
2087
|
|
|
2088 b->start = b->pos;
|
|
|
2089 b->last = b->pos;
|
|
|
2090 b->end = b->pos + size;
|
|
|
2091 }
|
|
|
2092
|
|
|
2093 /*
|
|
|
2094 * MSIE closes a keepalive connection with RST flag
|
|
|
2095 * so we ignore ECONNRESET here.
|
|
|
2096 */
|
|
|
2097
|
|
|
2098 c->log_error = NGX_ERROR_IGNORE_ECONNRESET;
|
|
|
2099 ngx_set_socket_errno(0);
|
|
|
2100
|
|
|
2101 n = c->recv(c, b->last, size);
|
|
|
2102 c->log_error = NGX_ERROR_INFO;
|
|
|
2103
|
|
|
2104 if (n == NGX_AGAIN) {
|
|
58
|
2105 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) {
|
|
24
|
2106 ngx_http_close_connection(c);
|
|
|
2107 }
|
|
|
2108
|
|
0
|
2109 return;
|
|
|
2110 }
|
|
|
2111
|
|
|
2112 if (n == NGX_ERROR) {
|
|
|
2113 ngx_http_close_connection(c);
|
|
|
2114 return;
|
|
|
2115 }
|
|
|
2116
|
|
32
|
2117 c->log->handler = NULL;
|
|
0
|
2118
|
|
|
2119 if (n == 0) {
|
|
|
2120 ngx_log_error(NGX_LOG_INFO, c->log, ngx_socket_errno,
|
|
32
|
2121 "client %V closed keepalive connection", &c->addr_text);
|
|
0
|
2122 ngx_http_close_connection(c);
|
|
|
2123 return;
|
|
|
2124 }
|
|
|
2125
|
|
|
2126 b->last += n;
|
|
32
|
2127
|
|
|
2128 c->log->handler = ngx_http_log_error;
|
|
|
2129 c->log->action = "reading client request line";
|
|
0
|
2130
|
|
|
2131 ngx_http_init_request(rev);
|
|
|
2132 }
|
|
|
2133
|
|
|
2134
|
|
50
|
2135 static void
|
|
|
2136 ngx_http_set_lingering_close(ngx_http_request_t *r)
|
|
0
|
2137 {
|
|
|
2138 ngx_event_t *rev, *wev;
|
|
|
2139 ngx_connection_t *c;
|
|
|
2140 ngx_http_core_loc_conf_t *clcf;
|
|
|
2141
|
|
|
2142 c = r->connection;
|
|
|
2143
|
|
|
2144 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
2145
|
|
|
2146 rev = c->read;
|
|
58
|
2147 rev->handler = ngx_http_lingering_close_handler;
|
|
0
|
2148
|
|
|
2149 r->lingering_time = ngx_time() + clcf->lingering_time / 1000;
|
|
|
2150 ngx_add_timer(rev, clcf->lingering_timeout);
|
|
|
2151
|
|
58
|
2152 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) {
|
|
0
|
2153 ngx_http_close_request(r, 0);
|
|
|
2154 ngx_http_close_connection(c);
|
|
|
2155 return;
|
|
|
2156 }
|
|
|
2157
|
|
|
2158 wev = c->write;
|
|
58
|
2159 wev->handler = ngx_http_empty_handler;
|
|
0
|
2160
|
|
|
2161 if (wev->active) {
|
|
4
|
2162 if (ngx_event_flags & NGX_USE_KQUEUE_EVENT) {
|
|
0
|
2163 if (ngx_del_event(wev, NGX_WRITE_EVENT, NGX_DISABLE_EVENT)
|
|
|
2164 == NGX_ERROR)
|
|
|
2165 {
|
|
26
|
2166 ngx_http_close_request(r, 0);
|
|
0
|
2167 ngx_http_close_connection(c);
|
|
|
2168 return;
|
|
|
2169 }
|
|
|
2170
|
|
|
2171 } else if (ngx_event_flags & NGX_USE_LEVEL_EVENT) {
|
|
|
2172 if (ngx_del_event(wev, NGX_WRITE_EVENT, 0) == NGX_ERROR) {
|
|
26
|
2173 ngx_http_close_request(r, 0);
|
|
0
|
2174 ngx_http_close_connection(c);
|
|
|
2175 return;
|
|
|
2176 }
|
|
|
2177 }
|
|
|
2178 }
|
|
|
2179
|
|
|
2180 if (ngx_shutdown_socket(c->fd, NGX_WRITE_SHUTDOWN) == -1) {
|
|
|
2181 ngx_connection_error(c, ngx_socket_errno,
|
|
|
2182 ngx_shutdown_socket_n " failed");
|
|
|
2183 ngx_http_close_request(r, 0);
|
|
|
2184 ngx_http_close_connection(c);
|
|
|
2185 return;
|
|
|
2186 }
|
|
|
2187
|
|
|
2188 if (rev->ready) {
|
|
|
2189 ngx_http_lingering_close_handler(rev);
|
|
|
2190 }
|
|
|
2191 }
|
|
|
2192
|
|
|
2193
|
|
50
|
2194 static void
|
|
|
2195 ngx_http_lingering_close_handler(ngx_event_t *rev)
|
|
0
|
2196 {
|
|
|
2197 ssize_t n;
|
|
|
2198 ngx_msec_t timer;
|
|
|
2199 ngx_connection_t *c;
|
|
|
2200 ngx_http_request_t *r;
|
|
|
2201 ngx_http_core_loc_conf_t *clcf;
|
|
|
2202 u_char buffer[NGX_HTTP_LINGERING_BUFFER_SIZE];
|
|
|
2203
|
|
|
2204 c = rev->data;
|
|
|
2205 r = c->data;
|
|
|
2206
|
|
|
2207 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
|
2208 "http lingering close handler");
|
|
|
2209
|
|
|
2210 if (rev->timedout) {
|
|
|
2211 ngx_http_close_request(r, 0);
|
|
|
2212 ngx_http_close_connection(c);
|
|
|
2213 return;
|
|
|
2214 }
|
|
|
2215
|
|
|
2216 timer = r->lingering_time - ngx_time();
|
|
|
2217 if (timer <= 0) {
|
|
|
2218 ngx_http_close_request(r, 0);
|
|
|
2219 ngx_http_close_connection(c);
|
|
|
2220 return;
|
|
|
2221 }
|
|
|
2222
|
|
|
2223 do {
|
|
|
2224 n = c->recv(c, buffer, NGX_HTTP_LINGERING_BUFFER_SIZE);
|
|
|
2225
|
|
|
2226 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0, "lingering read: %d", n);
|
|
|
2227
|
|
|
2228 if (n == NGX_ERROR || n == 0) {
|
|
|
2229 ngx_http_close_request(r, 0);
|
|
|
2230 ngx_http_close_connection(c);
|
|
|
2231 return;
|
|
|
2232 }
|
|
|
2233
|
|
|
2234 } while (rev->ready);
|
|
|
2235
|
|
58
|
2236 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) {
|
|
26
|
2237 ngx_http_close_request(r, 0);
|
|
24
|
2238 ngx_http_close_connection(c);
|
|
|
2239 return;
|
|
|
2240 }
|
|
|
2241
|
|
0
|
2242 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
2243
|
|
|
2244 timer *= 1000;
|
|
|
2245
|
|
|
2246 if (timer > clcf->lingering_timeout) {
|
|
|
2247 timer = clcf->lingering_timeout;
|
|
|
2248 }
|
|
|
2249
|
|
|
2250 ngx_add_timer(rev, timer);
|
|
|
2251 }
|
|
|
2252
|
|
|
2253
|
|
50
|
2254 void
|
|
|
2255 ngx_http_empty_handler(ngx_event_t *wev)
|
|
0
|
2256 {
|
|
|
2257 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, wev->log, 0, "http empty handler");
|
|
|
2258
|
|
|
2259 return;
|
|
|
2260 }
|
|
|
2261
|
|
|
2262
|
|
58
|
2263 void
|
|
|
2264 ngx_http_request_empty_handler(ngx_http_request_t *r)
|
|
|
2265 {
|
|
|
2266 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
2267 "http requets empty handler");
|
|
|
2268
|
|
|
2269 return;
|
|
|
2270 }
|
|
|
2271
|
|
|
2272
|
|
50
|
2273 ngx_int_t
|
|
|
2274 ngx_http_send_last(ngx_http_request_t *r)
|
|
0
|
2275 {
|
|
|
2276 ngx_buf_t *b;
|
|
|
2277 ngx_chain_t out;
|
|
|
2278
|
|
50
|
2279 b = ngx_calloc_buf(r->pool);
|
|
|
2280 if (b == NULL) {
|
|
0
|
2281 return NGX_ERROR;
|
|
|
2282 }
|
|
|
2283
|
|
|
2284 b->last_buf = 1;
|
|
|
2285 out.buf = b;
|
|
|
2286 out.next = NULL;
|
|
|
2287
|
|
|
2288 return ngx_http_output_filter(r, &out);
|
|
|
2289 }
|
|
|
2290
|
|
|
2291
|
|
50
|
2292 void
|
|
58
|
2293 ngx_http_close_request(ngx_http_request_t *r, ngx_int_t error)
|
|
0
|
2294 {
|
|
|
2295 ngx_log_t *log;
|
|
58
|
2296 struct linger linger;
|
|
0
|
2297 ngx_http_log_ctx_t *ctx;
|
|
|
2298 ngx_http_core_loc_conf_t *clcf;
|
|
|
2299
|
|
|
2300 log = r->connection->log;
|
|
|
2301
|
|
|
2302 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, log, 0, "http close request");
|
|
|
2303
|
|
|
2304 if (r->pool == NULL) {
|
|
|
2305 ngx_log_error(NGX_LOG_ALERT, log, 0,
|
|
|
2306 "http request already closed");
|
|
|
2307 return;
|
|
|
2308 }
|
|
|
2309
|
|
|
2310 #if (NGX_STAT_STUB)
|
|
|
2311 if (r->stat_reading) {
|
|
42
|
2312 ngx_atomic_dec(ngx_stat_reading);
|
|
0
|
2313 }
|
|
|
2314
|
|
|
2315 if (r->stat_writing) {
|
|
42
|
2316 ngx_atomic_dec(ngx_stat_writing);
|
|
0
|
2317 }
|
|
|
2318 #endif
|
|
|
2319
|
|
|
2320 if (error && r->headers_out.status == 0) {
|
|
|
2321 r->headers_out.status = error;
|
|
|
2322 }
|
|
|
2323
|
|
|
2324 ngx_http_log_handler(r);
|
|
|
2325
|
|
|
2326 if (r->connection->timedout) {
|
|
|
2327 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
2328
|
|
|
2329 if (clcf->reset_timedout_connection) {
|
|
58
|
2330 linger.l_onoff = 1;
|
|
|
2331 linger.l_linger = 0;
|
|
0
|
2332
|
|
|
2333 if (setsockopt(r->connection->fd, SOL_SOCKET, SO_LINGER,
|
|
58
|
2334 (const void *) &linger, sizeof(struct linger)) == -1)
|
|
0
|
2335 {
|
|
|
2336 ngx_log_error(NGX_LOG_ALERT, log, ngx_socket_errno,
|
|
|
2337 "setsockopt(SO_LINGER) failed");
|
|
|
2338 }
|
|
|
2339 }
|
|
|
2340 }
|
|
|
2341
|
|
58
|
2342 /* the various request strings were allocated from r->pool */
|
|
0
|
2343 ctx = log->data;
|
|
10
|
2344 ctx->request = NULL;
|
|
0
|
2345
|
|
|
2346 r->request_line.len = 0;
|
|
|
2347
|
|
|
2348 ngx_destroy_pool(r->pool);
|
|
|
2349 }
|
|
|
2350
|
|
|
2351
|
|
|
2352 #if (NGX_HTTP_SSL)
|
|
|
2353
|
|
50
|
2354 void
|
|
|
2355 ngx_ssl_close_handler(ngx_event_t *ev)
|
|
0
|
2356 {
|
|
|
2357 ngx_connection_t *c;
|
|
|
2358
|
|
|
2359 c = ev->data;
|
|
|
2360
|
|
|
2361 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, ev->log, 0, "http ssl close handler");
|
|
|
2362
|
|
|
2363 if (ngx_ssl_shutdown(c) == NGX_AGAIN) {
|
|
|
2364 return;
|
|
|
2365 }
|
|
|
2366
|
|
|
2367 ngx_http_close_connection(c);
|
|
|
2368 }
|
|
|
2369
|
|
|
2370 #endif
|
|
|
2371
|
|
|
2372
|
|
50
|
2373 void
|
|
|
2374 ngx_http_close_connection(ngx_connection_t *c)
|
|
0
|
2375 {
|
|
28
|
2376 ngx_pool_t *pool;
|
|
|
2377
|
|
0
|
2378 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
|
2379 "close http connection: %d", c->fd);
|
|
|
2380
|
|
2
|
2381 #if (NGX_OPENSSL)
|
|
|
2382
|
|
|
2383 if (c->ssl) {
|
|
|
2384 if (ngx_ssl_shutdown(c) == NGX_AGAIN) {
|
|
58
|
2385 c->read->handler = ngx_ssl_close_handler;
|
|
|
2386 c->write->handler = ngx_ssl_close_handler;
|
|
2
|
2387 return;
|
|
|
2388 }
|
|
|
2389 }
|
|
|
2390
|
|
|
2391 #endif
|
|
|
2392
|
|
0
|
2393 #if (NGX_STAT_STUB)
|
|
42
|
2394 ngx_atomic_dec(ngx_stat_active);
|
|
0
|
2395 #endif
|
|
|
2396
|
|
28
|
2397 pool = c->pool;
|
|
|
2398
|
|
0
|
2399 ngx_close_connection(c);
|
|
28
|
2400
|
|
50
|
2401 ngx_destroy_pool(pool);
|
|
0
|
2402 }
|
|
|
2403
|
|
|
2404
|
|
50
|
2405 static u_char *
|
|
|
2406 ngx_http_log_error(ngx_log_t *log, u_char *buf, size_t len)
|
|
0
|
2407 {
|
|
32
|
2408 u_char *p;
|
|
54
|
2409 ngx_http_request_t *r;
|
|
32
|
2410 ngx_http_log_ctx_t *ctx;
|
|
10
|
2411
|
|
32
|
2412 if (log->action) {
|
|
58
|
2413 p = ngx_snprintf(buf, len, " while %s", log->action);
|
|
10
|
2414 len -= p - buf;
|
|
54
|
2415 buf = p;
|
|
10
|
2416 }
|
|
|
2417
|
|
58
|
2418 ctx = log->data;
|
|
|
2419
|
|
54
|
2420 p = ngx_snprintf(buf, len, ", client: %V", ctx->client);
|
|
58
|
2421 len -= p - buf;
|
|
54
|
2422
|
|
|
2423 r = ctx->request;
|
|
|
2424
|
|
58
|
2425 if (r) {
|
|
|
2426 return r->log_handler(r, p, len);
|
|
0
|
2427 }
|
|
10
|
2428
|
|
58
|
2429 return p;
|
|
|
2430 }
|
|
|
2431
|
|
|
2432
|
|
|
2433 static u_char *
|
|
|
2434 ngx_http_log_error_handler(ngx_http_request_t *r, u_char *buf, size_t len)
|
|
|
2435 {
|
|
|
2436 u_char *p;
|
|
54
|
2437
|
|
|
2438 if (r->server_name.data) {
|
|
|
2439 p = ngx_snprintf(buf, len, ", server: %V", &r->server_name);
|
|
52
|
2440 len -= p - buf;
|
|
54
|
2441 buf = p;
|
|
52
|
2442 }
|
|
|
2443
|
|
54
|
2444 if (r->unparsed_uri.data) {
|
|
|
2445 p = ngx_snprintf(buf, len, ", URL: \"%V\"", &r->unparsed_uri);
|
|
|
2446 len -= p - buf;
|
|
|
2447 buf = p;
|
|
|
2448
|
|
|
2449 } else {
|
|
|
2450 if (r->request_line.data == NULL && r->request_start) {
|
|
|
2451 for (p = r->request_start; p < r->header_in->last; p++) {
|
|
|
2452 if (*p == CR || *p == LF) {
|
|
|
2453 break;
|
|
|
2454 }
|
|
|
2455 }
|
|
|
2456
|
|
|
2457 r->request_line.len = p - r->request_start;
|
|
|
2458 r->request_line.data = r->request_start;
|
|
|
2459 }
|
|
|
2460
|
|
|
2461 if (r->request_line.len) {
|
|
|
2462 p = ngx_snprintf(buf, len, ", request: \"%V\"", &r->request_line);
|
|
|
2463 len -= p - buf;
|
|
|
2464 buf = p;
|
|
|
2465 }
|
|
10
|
2466 }
|
|
|
2467
|
|
54
|
2468 return ngx_http_log_error_info(r, buf, len);
|
|
0
|
2469 }
|
|
54
|
2470
|
|
|
2471
|
|
|
2472 u_char *
|
|
|
2473 ngx_http_log_error_info(ngx_http_request_t *r, u_char *buf, size_t len)
|
|
|
2474 {
|
|
|
2475 u_char *p;
|
|
|
2476
|
|
|
2477 if (r->headers_in.host) {
|
|
|
2478 p = ngx_snprintf(buf, len, ", host: \"%V\"",
|
|
|
2479 &r->headers_in.host->value);
|
|
|
2480 len -= p - buf;
|
|
|
2481 buf = p;
|
|
|
2482 }
|
|
|
2483
|
|
|
2484 if (r->headers_in.referer) {
|
|
|
2485 p = ngx_snprintf(buf, len, ", referrer: \"%V\"",
|
|
|
2486 &r->headers_in.referer->value);
|
|
|
2487 buf = p;
|
|
|
2488 }
|
|
|
2489
|
|
|
2490 return buf;
|
|
|
2491 }
|
