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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 static void ngx_http_process_request_line(ngx_event_t *rev);
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15 static void ngx_http_process_request_headers(ngx_event_t *rev);
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16 static ssize_t ngx_http_read_request_header(ngx_http_request_t *r);
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17 static ngx_int_t ngx_http_alloc_large_header_buffer(ngx_http_request_t *r,
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50
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18 ngx_uint_t request_line);
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58
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19
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20 static ngx_int_t ngx_http_process_header_line(ngx_http_request_t *r,
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21 ngx_table_elt_t *h, ngx_uint_t offset);
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72
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22 static ngx_int_t ngx_http_process_unique_header_line(ngx_http_request_t *r,
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23 ngx_table_elt_t *h, ngx_uint_t offset);
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58
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24 static ngx_int_t ngx_http_process_cookie(ngx_http_request_t *r,
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25 ngx_table_elt_t *h, ngx_uint_t offset);
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26
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0
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27 static ngx_int_t ngx_http_process_request_header(ngx_http_request_t *r);
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26
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28 static ngx_int_t ngx_http_find_virtual_server(ngx_http_request_t *r);
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0
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29
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58
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30 static void ngx_http_request_handler(ngx_event_t *ev);
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74
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31 static ngx_int_t ngx_http_set_write_handler(ngx_http_request_t *r);
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58
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32 static void ngx_http_writer(ngx_http_request_t *r);
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33
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34 static void ngx_http_block_read(ngx_http_request_t *r);
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35 static void ngx_http_read_discarded_body_handler(ngx_http_request_t *r);
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0
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36 static ngx_int_t ngx_http_read_discarded_body(ngx_http_request_t *r);
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37
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38 static void ngx_http_set_keepalive(ngx_http_request_t *r);
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39 static void ngx_http_keepalive_handler(ngx_event_t *ev);
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40 static void ngx_http_set_lingering_close(ngx_http_request_t *r);
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41 static void ngx_http_lingering_close_handler(ngx_event_t *ev);
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80
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42 static void ngx_http_close_request(ngx_http_request_t *r, ngx_int_t error);
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118
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43 static void ngx_http_request_done(ngx_http_request_t *r, ngx_int_t error);
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80
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44 static void ngx_http_close_connection(ngx_connection_t *c);
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0
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45
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32
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46 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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47 static u_char *ngx_http_log_error_handler(ngx_http_request_t *r, u_char *buf,
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48 size_t len);
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0
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49
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88
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50 #if (NGX_HTTP_SSL)
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51 static void ngx_http_ssl_handshake(ngx_event_t *rev);
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96
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52 static void ngx_http_ssl_handshake_handler(ngx_connection_t *c);
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88
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53 #endif
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54
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0
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55
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54
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56 static char *ngx_http_client_errors[] = {
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57
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58 /* NGX_HTTP_PARSE_INVALID_METHOD */
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59 "client sent invalid method",
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60
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61 /* NGX_HTTP_PARSE_INVALID_REQUEST */
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62 "client sent invalid request",
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63
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64 /* NGX_HTTP_PARSE_INVALID_09_METHOD */
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65 "client sent invalid method in HTTP/0.9 request"
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0
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66 };
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67
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68
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69 ngx_http_header_t ngx_http_headers_in[] = {
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58
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70 { ngx_string("Host"), offsetof(ngx_http_headers_in_t, host),
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72
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71 ngx_http_process_unique_header_line },
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58
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72
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73 { ngx_string("Connection"), offsetof(ngx_http_headers_in_t, connection),
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72
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74 ngx_http_process_unique_header_line },
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58
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75
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0
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76 { ngx_string("If-Modified-Since"),
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58
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77 offsetof(ngx_http_headers_in_t, if_modified_since),
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78 ngx_http_process_header_line },
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79
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80 { ngx_string("User-Agent"), offsetof(ngx_http_headers_in_t, user_agent),
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81 ngx_http_process_header_line },
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82
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83 { ngx_string("Referer"), offsetof(ngx_http_headers_in_t, referer),
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84 ngx_http_process_header_line },
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85
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0
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86 { ngx_string("Content-Length"),
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58
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87 offsetof(ngx_http_headers_in_t, content_length),
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72
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88 ngx_http_process_unique_header_line },
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58
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89
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28
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90 { ngx_string("Content-Type"),
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58
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91 offsetof(ngx_http_headers_in_t, content_type),
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92 ngx_http_process_header_line },
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93
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94 { ngx_string("Range"), offsetof(ngx_http_headers_in_t, range),
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95 ngx_http_process_header_line },
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96
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130
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97 { ngx_string("Transfer-Encoding"),
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98 offsetof(ngx_http_headers_in_t, transfer_encoding),
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99 ngx_http_process_header_line },
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100
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0
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101 #if (NGX_HTTP_GZIP)
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102 { ngx_string("Accept-Encoding"),
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58
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103 offsetof(ngx_http_headers_in_t, accept_encoding),
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104 ngx_http_process_header_line },
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105
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106 { ngx_string("Via"), offsetof(ngx_http_headers_in_t, via),
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107 ngx_http_process_header_line },
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0
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108 #endif
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109
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110 { ngx_string("Authorization"),
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111 offsetof(ngx_http_headers_in_t, authorization),
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72
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112 ngx_http_process_unique_header_line },
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58
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113
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114 { ngx_string("Keep-Alive"), offsetof(ngx_http_headers_in_t, keep_alive),
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115 ngx_http_process_header_line },
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0
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116
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122
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117 #if (NGX_HTTP_PROXY || NGX_HTTP_REALIP)
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0
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118 { ngx_string("X-Forwarded-For"),
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58
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119 offsetof(ngx_http_headers_in_t, x_forwarded_for),
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120 ngx_http_process_header_line },
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0
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121 #endif
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28
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122
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122
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123 #if (NGX_HTTP_REALIP)
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124 { ngx_string("X-Real-IP"),
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125 offsetof(ngx_http_headers_in_t, x_real_ip),
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126 ngx_http_process_header_line },
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127 #endif
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128
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38
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129 #if (NGX_HTTP_HEADERS)
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58
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130 { ngx_string("Accept"), offsetof(ngx_http_headers_in_t, accept),
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131 ngx_http_process_header_line },
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132
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38
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133 { ngx_string("Accept-Language"),
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58
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134 offsetof(ngx_http_headers_in_t, accept_language),
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135 ngx_http_process_header_line },
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38
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136 #endif
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137
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58
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138 { ngx_string("Cookie"), 0, ngx_http_process_cookie },
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139
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140 { ngx_null_string, 0, NULL }
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0
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141 };
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142
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143
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50
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144 void
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145 ngx_http_init_connection(ngx_connection_t *c)
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0
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146 {
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147 ngx_event_t *rev;
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148 ngx_http_log_ctx_t *ctx;
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149
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50
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150 ctx = ngx_palloc(c->pool, sizeof(ngx_http_log_ctx_t));
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151 if (ctx == NULL) {
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0
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152 ngx_http_close_connection(c);
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153 return;
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154 }
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155
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10
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156 ctx->client = &c->addr_text;
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157 ctx->request = NULL;
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32
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158
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159 c->log->connection = c->number;
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160 c->log->handler = ngx_http_log_error;
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0
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161 c->log->data = ctx;
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32
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162 c->log->action = "reading client request line";
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163
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0
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164 c->log_error = NGX_ERROR_INFO;
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165
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166 rev = c->read;
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58
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167 rev->handler = ngx_http_init_request;
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118
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168 c->write->handler = ngx_http_empty_handler;
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0
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169
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116
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170 #if (NGX_STAT_STUB)
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171 ngx_atomic_fetch_add(ngx_stat_reading, 1);
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172 #endif
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173
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0
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174 if (rev->ready) {
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175 /* the deferred accept(), rtsig, aio, iocp */
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176
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177 if (ngx_accept_mutex) {
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112
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178 ngx_post_event(rev, &ngx_posted_events);
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0
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179 return;
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180 }
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181
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182 ngx_http_init_request(rev);
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183 return;
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184 }
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185
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186 ngx_add_timer(rev, c->listening->post_accept_timeout);
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187
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188 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) {
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116
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189 #if (NGX_STAT_STUB)
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190 ngx_atomic_fetch_add(ngx_stat_reading, -1);
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191 #endif
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0
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192 ngx_http_close_connection(c);
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193 return;
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194 }
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195 }
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196
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197
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50
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198 static
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199 void ngx_http_init_request(ngx_event_t *rev)
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0
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200 {
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122
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201 ngx_uint_t i;
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202 socklen_t len;
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203 struct sockaddr_in sin;
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204 ngx_connection_t *c;
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205 ngx_http_request_t *r;
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142
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206 ngx_http_in_port_t *hip;
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207 ngx_http_in_addr_t *hia;
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122
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208 ngx_http_log_ctx_t *ctx;
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209 ngx_http_connection_t *hc;
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210 ngx_http_core_srv_conf_t *cscf;
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211 ngx_http_core_loc_conf_t *clcf;
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212 ngx_http_core_main_conf_t *cmcf;
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0
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213 #if (NGX_HTTP_SSL)
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122
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214 ngx_http_ssl_srv_conf_t *sscf;
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0
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215 #endif
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216
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116
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217 #if (NGX_STAT_STUB)
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218 ngx_atomic_fetch_add(ngx_stat_reading, -1);
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219 #endif
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220
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0
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221 c = rev->data;
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222
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223 if (rev->timedout) {
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224 ngx_log_error(NGX_LOG_INFO, c->log, NGX_ETIMEDOUT, "client timed out");
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225
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226 ngx_http_close_connection(c);
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227 return;
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228 }
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229
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230 hc = c->data;
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231
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116
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232 if (hc == NULL) {
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50
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233 hc = ngx_pcalloc(c->pool, sizeof(ngx_http_connection_t));
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234 if (hc == NULL) {
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0
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235 ngx_http_close_connection(c);
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236 return;
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237 }
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238 }
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239
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240 r = hc->request;
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241
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242 if (r) {
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243 ngx_memzero(r, sizeof(ngx_http_request_t));
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244
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245 r->pipeline = hc->pipeline;
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246
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247 if (hc->nbusy) {
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248 r->header_in = hc->busy[0];
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249 }
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250
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251 } else {
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50
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252 r = ngx_pcalloc(c->pool, sizeof(ngx_http_request_t));
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253 if (r == NULL) {
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0
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254 ngx_http_close_connection(c);
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255 return;
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256 }
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257
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258 hc->request = r;
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259 }
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260
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261 c->data = r;
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262 r->http_connection = hc;
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263
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264 c->sent = 0;
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265 r->signature = NGX_HTTP_MODULE;
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266
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267 /* find the server configuration for the address:port */
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268
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269 /* AF_INET only */
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270
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142
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271 hip = c->servers;
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272 hia = hip->addrs;
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273
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274 r->port = hip->port;
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275 r->port_text = &hip->port_text;
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0
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276
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277 i = 0;
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278
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142
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279 if (hip->naddrs > 1) {
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0
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280
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281 /*
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282 * There are several addresses on this port and one of them
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283 * is the "*:port" wildcard so getsockname() is needed to determine
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284 * the server address.
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285 *
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286 * AcceptEx() already gave this address.
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287 */
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288
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10
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289 #if (NGX_WIN32)
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0
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290 if (c->local_sockaddr) {
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291 r->in_addr =
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292 ((struct sockaddr_in *) c->local_sockaddr)->sin_addr.s_addr;
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293
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28
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294 } else
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0
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295 #endif
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28
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296 {
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0
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297 len = sizeof(struct sockaddr_in);
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28
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298 if (getsockname(c->fd, (struct sockaddr *) &sin, &len) == -1) {
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0
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299 ngx_connection_error(c, ngx_socket_errno,
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300 "getsockname() failed");
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301 ngx_http_close_connection(c);
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302 return;
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303 }
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304
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28
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305 r->in_addr = sin.sin_addr.s_addr;
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0
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306 }
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307
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308 /* the last in_port->addrs address is "*" */
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309
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142
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310 for ( /* void */ ; i < hip->naddrs - 1; i++) {
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311 if (hia[i].addr == r->in_addr) {
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0
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312 break;
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313 }
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314 }
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315
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316 } else {
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142
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317 r->in_addr = hia[0].addr;
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0
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318 }
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319
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142
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320 r->virtual_names = hia[i].virtual_names;
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0
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321
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322 /* the default server configuration for the address:port */
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142
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323 cscf = hia[i].core_srv_conf;
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0
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324
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325 r->main_conf = cscf->ctx->main_conf;
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326 r->srv_conf = cscf->ctx->srv_conf;
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327 r->loc_conf = cscf->ctx->loc_conf;
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328
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142
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329 r->server_name = cscf->server_name;
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330
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58
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331 rev->handler = ngx_http_process_request_line;
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0
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332
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333 #if (NGX_HTTP_SSL)
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334
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335 sscf = ngx_http_get_module_srv_conf(r, ngx_http_ssl_module);
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336 if (sscf->enable) {
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337
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338 if (c->ssl == NULL) {
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96
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339 if (ngx_ssl_create_connection(&sscf->ssl, c, NGX_SSL_BUFFER)
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56
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340 == NGX_ERROR)
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0
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341 {
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342 ngx_http_close_connection(c);
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343 return;
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344 }
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345
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58
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346 rev->handler = ngx_http_ssl_handshake;
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0
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347 }
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348
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62
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349 r->main_filter_need_in_memory = 1;
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0
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350 }
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351
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352 #endif
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353
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354 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
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355 c->log->file = clcf->err_log->file;
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356 if (!(c->log->log_level & NGX_LOG_DEBUG_CONNECTION)) {
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357 c->log->log_level = clcf->err_log->log_level;
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358 }
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359
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360 if (c->buffer == NULL) {
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361 c->buffer = ngx_create_temp_buf(c->pool,
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362 cscf->client_header_buffer_size);
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363 if (c->buffer == NULL) {
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364 ngx_http_close_connection(c);
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365 return;
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366 }
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367 }
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368
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369 if (r->header_in == NULL) {
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370 r->header_in = c->buffer;
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371 }
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372
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50
|
373 r->pool = ngx_create_pool(cscf->request_pool_size, c->log);
|
|
|
374 if (r->pool == NULL) {
|
|
0
|
375 ngx_http_close_connection(c);
|
|
|
376 return;
|
|
|
377 }
|
|
|
378
|
|
|
379
|
|
|
380 if (ngx_list_init(&r->headers_out.headers, r->pool, 20,
|
|
130
|
381 sizeof(ngx_table_elt_t))
|
|
|
382 == NGX_ERROR)
|
|
0
|
383 {
|
|
|
384 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
385 return;
|
|
|
386 }
|
|
|
387
|
|
|
388 r->ctx = ngx_pcalloc(r->pool, sizeof(void *) * ngx_http_max_module);
|
|
|
389 if (r->ctx == NULL) {
|
|
|
390 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
391 return;
|
|
|
392 }
|
|
|
393
|
|
122
|
394 cmcf = ngx_http_get_module_main_conf(r, ngx_http_core_module);
|
|
|
395
|
|
|
396 r->variables = ngx_pcalloc(r->pool, cmcf->variables.nelts
|
|
|
397 * sizeof(ngx_http_variable_value_t));
|
|
|
398 if (r->variables == NULL) {
|
|
|
399 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
400 return;
|
|
|
401 }
|
|
|
402
|
|
0
|
403 c->single_connection = 1;
|
|
132
|
404 c->destroyed = 0;
|
|
|
405
|
|
0
|
406 r->connection = c;
|
|
|
407
|
|
102
|
408 r->main = r;
|
|
|
409
|
|
46
|
410 r->start_time = ngx_time();
|
|
|
411
|
|
0
|
412 r->headers_in.content_length_n = -1;
|
|
|
413 r->headers_in.keep_alive_n = -1;
|
|
|
414 r->headers_out.content_length_n = -1;
|
|
|
415 r->headers_out.last_modified_time = -1;
|
|
|
416
|
|
|
417 r->http_state = NGX_HTTP_READING_REQUEST_STATE;
|
|
|
418
|
|
54
|
419 ctx = c->log->data;
|
|
|
420 ctx->request = r;
|
|
58
|
421 r->log_handler = ngx_http_log_error_handler;
|
|
54
|
422
|
|
0
|
423 #if (NGX_STAT_STUB)
|
|
110
|
424 ngx_atomic_fetch_add(ngx_stat_reading, 1);
|
|
26
|
425 r->stat_reading = 1;
|
|
110
|
426 ngx_atomic_fetch_add(ngx_stat_requests, 1);
|
|
0
|
427 #endif
|
|
|
428
|
|
58
|
429 rev->handler(rev);
|
|
0
|
430 }
|
|
|
431
|
|
|
432
|
|
|
433 #if (NGX_HTTP_SSL)
|
|
|
434
|
|
50
|
435 static void
|
|
|
436 ngx_http_ssl_handshake(ngx_event_t *rev)
|
|
0
|
437 {
|
|
10
|
438 u_char buf[1];
|
|
|
439 ssize_t n;
|
|
0
|
440 ngx_int_t rc;
|
|
|
441 ngx_connection_t *c;
|
|
|
442 ngx_http_request_t *r;
|
|
|
443
|
|
|
444 c = rev->data;
|
|
|
445 r = c->data;
|
|
|
446
|
|
|
447 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, rev->log, 0,
|
|
|
448 "http check ssl handshake");
|
|
|
449
|
|
|
450 if (rev->timedout) {
|
|
54
|
451 ngx_log_error(NGX_LOG_INFO, c->log, NGX_ETIMEDOUT, "client timed out");
|
|
|
452 c->timedout = 1;
|
|
|
453 ngx_http_close_request(r, NGX_HTTP_REQUEST_TIME_OUT);
|
|
0
|
454 return;
|
|
|
455 }
|
|
|
456
|
|
132
|
457 n = recv(c->fd, (char *) buf, 1, MSG_PEEK);
|
|
0
|
458
|
|
|
459 if (n == -1 && ngx_socket_errno == NGX_EAGAIN) {
|
|
|
460 return;
|
|
|
461 }
|
|
|
462
|
|
|
463 if (n == 1) {
|
|
|
464 if (buf[0] == 0x80 /* SSLv2 */ || buf[0] == 0x16 /* SSLv3/TLSv1 */) {
|
|
|
465 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, rev->log, 0,
|
|
10
|
466 "https ssl handshake: 0x%02Xd", buf[0]);
|
|
0
|
467
|
|
|
468 rc = ngx_ssl_handshake(c);
|
|
|
469
|
|
96
|
470 if (rc == NGX_AGAIN) {
|
|
|
471 c->ssl->handler = ngx_http_ssl_handshake_handler;
|
|
0
|
472 return;
|
|
|
473 }
|
|
|
474
|
|
96
|
475 ngx_http_ssl_handshake_handler(c);
|
|
|
476
|
|
|
477 return;
|
|
0
|
478
|
|
|
479 } else {
|
|
|
480 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, rev->log, 0,
|
|
|
481 "plain http");
|
|
|
482
|
|
|
483 r->plain_http = 1;
|
|
|
484 }
|
|
|
485 }
|
|
|
486
|
|
58
|
487 rev->handler = ngx_http_process_request_line;
|
|
0
|
488 ngx_http_process_request_line(rev);
|
|
|
489 }
|
|
|
490
|
|
96
|
491
|
|
|
492 static void
|
|
|
493 ngx_http_ssl_handshake_handler(ngx_connection_t *c)
|
|
|
494 {
|
|
|
495 ngx_http_request_t *r;
|
|
|
496
|
|
|
497 if (c->ssl->handshaked) {
|
|
|
498
|
|
|
499 /*
|
|
|
500 * The majority of browsers do not send the "close notify" alert.
|
|
|
501 * Among them are MSIE, old Mozilla, Netscape 4, Konqueror,
|
|
|
502 * and Links. And what is more, MSIE ignores the server's alert.
|
|
|
503 *
|
|
|
504 * Opera and recent Mozilla send the alert.
|
|
|
505 */
|
|
|
506
|
|
|
507 c->ssl->no_wait_shutdown = 1;
|
|
|
508
|
|
|
509 c->read->handler = ngx_http_process_request_line;
|
|
|
510 /* STUB: epoll edge */ c->write->handler = ngx_http_empty_handler;
|
|
|
511
|
|
|
512 ngx_http_process_request_line(c->read);
|
|
|
513
|
|
|
514 return;
|
|
|
515 }
|
|
|
516
|
|
|
517 r = c->data;
|
|
|
518
|
|
|
519 ngx_http_close_request(r, NGX_HTTP_BAD_REQUEST);
|
|
|
520
|
|
|
521 return;
|
|
|
522 }
|
|
|
523
|
|
|
524
|
|
0
|
525 #endif
|
|
|
526
|
|
|
527
|
|
50
|
528 static void
|
|
|
529 ngx_http_process_request_line(ngx_event_t *rev)
|
|
0
|
530 {
|
|
|
531 ssize_t n;
|
|
|
532 ngx_int_t rc, rv;
|
|
|
533 ngx_connection_t *c;
|
|
|
534 ngx_http_request_t *r;
|
|
|
535 ngx_http_log_ctx_t *ctx;
|
|
|
536
|
|
|
537 c = rev->data;
|
|
|
538 r = c->data;
|
|
|
539
|
|
|
540 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, rev->log, 0,
|
|
|
541 "http process request line");
|
|
|
542
|
|
|
543 if (rev->timedout) {
|
|
54
|
544 ngx_log_error(NGX_LOG_INFO, c->log, NGX_ETIMEDOUT, "client timed out");
|
|
|
545 c->timedout = 1;
|
|
|
546 ngx_http_close_request(r, NGX_HTTP_REQUEST_TIME_OUT);
|
|
0
|
547 return;
|
|
|
548 }
|
|
|
549
|
|
|
550 rc = NGX_AGAIN;
|
|
|
551
|
|
|
552 for ( ;; ) {
|
|
|
553
|
|
|
554 if (rc == NGX_AGAIN) {
|
|
|
555 n = ngx_http_read_request_header(r);
|
|
|
556
|
|
|
557 if (n == NGX_AGAIN || n == NGX_ERROR) {
|
|
|
558 return;
|
|
|
559 }
|
|
|
560 }
|
|
|
561
|
|
|
562 rc = ngx_http_parse_request_line(r, r->header_in);
|
|
|
563
|
|
|
564 if (rc == NGX_OK) {
|
|
|
565
|
|
|
566 /* the request line has been parsed successfully */
|
|
|
567
|
|
10
|
568 r->request_line.len = r->request_end - r->request_start;
|
|
|
569 r->request_line.data = r->request_start;
|
|
|
570
|
|
0
|
571
|
|
|
572 if (r->args_start) {
|
|
|
573 r->uri.len = r->args_start - 1 - r->uri_start;
|
|
|
574 } else {
|
|
|
575 r->uri.len = r->uri_end - r->uri_start;
|
|
|
576 }
|
|
|
577
|
|
18
|
578
|
|
2
|
579 if (r->complex_uri || r->quoted_uri) {
|
|
10
|
580
|
|
50
|
581 r->uri.data = ngx_palloc(r->pool, r->uri.len + 1);
|
|
|
582 if (r->uri.data == NULL) {
|
|
10
|
583 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
584 return;
|
|
|
585 }
|
|
|
586
|
|
0
|
587 rc = ngx_http_parse_complex_uri(r);
|
|
|
588
|
|
54
|
589 if (rc == NGX_HTTP_PARSE_INVALID_REQUEST) {
|
|
|
590 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
|
591 "client sent invalid request");
|
|
|
592 ngx_http_finalize_request(r, NGX_HTTP_BAD_REQUEST);
|
|
0
|
593 return;
|
|
|
594 }
|
|
|
595
|
|
|
596 } else {
|
|
10
|
597 r->uri.data = r->uri_start;
|
|
0
|
598 }
|
|
|
599
|
|
18
|
600
|
|
10
|
601 r->unparsed_uri.len = r->uri_end - r->uri_start;
|
|
|
602 r->unparsed_uri.data = r->uri_start;
|
|
|
603
|
|
0
|
604
|
|
58
|
605 r->method_name.len = r->method_end - r->request_start + 1;
|
|
|
606 r->method_name.data = r->request_line.data;
|
|
0
|
607
|
|
10
|
608
|
|
28
|
609 if (r->http_protocol.data) {
|
|
|
610 r->http_protocol.len = r->request_end - r->http_protocol.data;
|
|
|
611 }
|
|
|
612
|
|
|
613
|
|
0
|
614 if (r->uri_ext) {
|
|
|
615 if (r->args_start) {
|
|
|
616 r->exten.len = r->args_start - 1 - r->uri_ext;
|
|
|
617 } else {
|
|
|
618 r->exten.len = r->uri_end - r->uri_ext;
|
|
|
619 }
|
|
|
620
|
|
10
|
621 r->exten.data = r->uri_ext;
|
|
0
|
622 }
|
|
|
623
|
|
10
|
624
|
|
0
|
625 if (r->args_start && r->uri_end > r->args_start) {
|
|
|
626 r->args.len = r->uri_end - r->args_start;
|
|
10
|
627 r->args.data = r->args_start;
|
|
0
|
628 }
|
|
|
629
|
|
10
|
630
|
|
|
631 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
|
632 "http request line: \"%V\"", &r->request_line);
|
|
|
633
|
|
0
|
634 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
10
|
635 "http uri: \"%V\"", &r->uri);
|
|
0
|
636
|
|
|
637 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
10
|
638 "http args: \"%V\"", &r->args);
|
|
0
|
639
|
|
|
640 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
10
|
641 "http exten: \"%V\"", &r->exten);
|
|
|
642
|
|
0
|
643 if (r->http_version < NGX_HTTP_VERSION_10) {
|
|
86
|
644
|
|
|
645 if (rev->timer_set) {
|
|
|
646 ngx_del_timer(rev);
|
|
|
647 }
|
|
|
648
|
|
|
649 #if (NGX_STAT_STUB)
|
|
110
|
650 ngx_atomic_fetch_add(ngx_stat_reading, -1);
|
|
86
|
651 r->stat_reading = 0;
|
|
110
|
652 ngx_atomic_fetch_add(ngx_stat_writing, 1);
|
|
86
|
653 r->stat_writing = 1;
|
|
|
654 #endif
|
|
|
655
|
|
|
656 rev->handler = ngx_http_request_handler;
|
|
|
657 c->write->handler = ngx_http_request_handler;
|
|
58
|
658 r->read_event_handler = ngx_http_block_read;
|
|
86
|
659
|
|
0
|
660 ngx_http_handler(r);
|
|
86
|
661
|
|
0
|
662 return;
|
|
|
663 }
|
|
|
664
|
|
|
665
|
|
|
666 if (ngx_list_init(&r->headers_in.headers, r->pool, 20,
|
|
130
|
667 sizeof(ngx_table_elt_t))
|
|
|
668 == NGX_ERROR)
|
|
0
|
669 {
|
|
|
670 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
671 return;
|
|
|
672 }
|
|
|
673
|
|
|
674
|
|
48
|
675 if (ngx_array_init(&r->headers_in.cookies, r->pool, 2,
|
|
130
|
676 sizeof(ngx_table_elt_t *))
|
|
|
677 == NGX_ERROR)
|
|
0
|
678 {
|
|
|
679 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
680 return;
|
|
|
681 }
|
|
|
682
|
|
32
|
683 c->log->action = "reading client request headers";
|
|
0
|
684
|
|
58
|
685 rev->handler = ngx_http_process_request_headers;
|
|
0
|
686 ngx_http_process_request_headers(rev);
|
|
|
687
|
|
|
688 return;
|
|
54
|
689 }
|
|
|
690
|
|
|
691 if (rc != NGX_AGAIN) {
|
|
0
|
692
|
|
|
693 /* there was error while a request line parsing */
|
|
|
694
|
|
54
|
695 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
|
696 ngx_http_client_errors[rc - NGX_HTTP_CLIENT_ERROR]);
|
|
|
697 ngx_http_finalize_request(r, NGX_HTTP_BAD_REQUEST);
|
|
0
|
698 return;
|
|
|
699 }
|
|
|
700
|
|
|
701 /* NGX_AGAIN: a request line parsing is still incomplete */
|
|
|
702
|
|
|
703 if (r->header_in->pos == r->header_in->end) {
|
|
|
704
|
|
|
705 rv = ngx_http_alloc_large_header_buffer(r, 1);
|
|
|
706
|
|
|
707 if (rv == NGX_ERROR) {
|
|
|
708 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
709 return;
|
|
|
710 }
|
|
|
711
|
|
|
712 if (rv == NGX_DECLINED) {
|
|
54
|
713 ctx = c->log->data;
|
|
|
714 ctx->request = r;
|
|
|
715
|
|
|
716 r->request_line.len = r->header_in->end - r->request_start;
|
|
|
717 r->request_line.data = r->request_start;
|
|
|
718
|
|
|
719 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
|
720 "client sent too long URI");
|
|
|
721 ngx_http_finalize_request(r, NGX_HTTP_REQUEST_URI_TOO_LARGE);
|
|
0
|
722 return;
|
|
|
723 }
|
|
|
724 }
|
|
|
725 }
|
|
|
726 }
|
|
|
727
|
|
|
728
|
|
50
|
729 static void
|
|
|
730 ngx_http_process_request_headers(ngx_event_t *rev)
|
|
0
|
731 {
|
|
56
|
732 ssize_t n;
|
|
|
733 ngx_int_t rc, rv;
|
|
|
734 ngx_uint_t key;
|
|
|
735 ngx_str_t header;
|
|
58
|
736 ngx_table_elt_t *h;
|
|
56
|
737 ngx_connection_t *c;
|
|
|
738 ngx_http_header_t *hh;
|
|
|
739 ngx_http_request_t *r;
|
|
60
|
740 ngx_http_core_srv_conf_t *cscf;
|
|
56
|
741 ngx_http_core_main_conf_t *cmcf;
|
|
0
|
742
|
|
|
743 c = rev->data;
|
|
|
744 r = c->data;
|
|
|
745
|
|
|
746 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, rev->log, 0,
|
|
|
747 "http process request header line");
|
|
|
748
|
|
|
749 if (rev->timedout) {
|
|
54
|
750 ngx_log_error(NGX_LOG_INFO, c->log, NGX_ETIMEDOUT, "client timed out");
|
|
|
751 c->timedout = 1;
|
|
|
752 ngx_http_close_request(r, NGX_HTTP_REQUEST_TIME_OUT);
|
|
0
|
753 return;
|
|
|
754 }
|
|
|
755
|
|
56
|
756 cmcf = ngx_http_get_module_main_conf(r, ngx_http_core_module);
|
|
60
|
757 cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
|
|
56
|
758 hh = (ngx_http_header_t *) cmcf->headers_in_hash.buckets;
|
|
|
759
|
|
0
|
760 rc = NGX_AGAIN;
|
|
|
761
|
|
|
762 for ( ;; ) {
|
|
|
763
|
|
|
764 if (rc == NGX_AGAIN) {
|
|
|
765
|
|
|
766 if (r->header_in->pos == r->header_in->end) {
|
|
|
767
|
|
|
768 rv = ngx_http_alloc_large_header_buffer(r, 0);
|
|
|
769
|
|
|
770 if (rv == NGX_ERROR) {
|
|
|
771 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
772 return;
|
|
|
773 }
|
|
|
774
|
|
|
775 if (rv == NGX_DECLINED) {
|
|
54
|
776 header.len = r->header_in->end - r->header_name_start;
|
|
|
777 header.data = r->header_name_start;
|
|
80
|
778
|
|
|
779 if (header.len > NGX_MAX_ERROR_STR - 300) {
|
|
|
780 header.len = NGX_MAX_ERROR_STR - 300;
|
|
|
781 header.data[header.len++] = '.';
|
|
|
782 header.data[header.len++] = '.';
|
|
|
783 header.data[header.len++] = '.';
|
|
|
784 }
|
|
|
785
|
|
54
|
786 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
|
787 "client sent too long header line: \"%V\"",
|
|
|
788 &header);
|
|
|
789 ngx_http_close_request(r, NGX_HTTP_BAD_REQUEST);
|
|
0
|
790 return;
|
|
|
791 }
|
|
|
792 }
|
|
|
793
|
|
|
794 n = ngx_http_read_request_header(r);
|
|
|
795
|
|
|
796 if (n == NGX_AGAIN || n == NGX_ERROR) {
|
|
|
797 return;
|
|
|
798 }
|
|
|
799 }
|
|
|
800
|
|
|
801 rc = ngx_http_parse_header_line(r, r->header_in);
|
|
|
802
|
|
|
803 if (rc == NGX_OK) {
|
|
|
804
|
|
60
|
805 if (r->invalid_header && cscf->ignore_invalid_headers) {
|
|
52
|
806
|
|
|
807 /* there was error while a header line parsing */
|
|
|
808
|
|
|
809 header.len = r->header_end - r->header_name_start;
|
|
|
810 header.data = r->header_name_start;
|
|
|
811
|
|
54
|
812 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
|
813 "client sent invalid header line: \"%V\"",
|
|
52
|
814 &header);
|
|
|
815 continue;
|
|
|
816 }
|
|
|
817
|
|
0
|
818 /* a header line has been parsed successfully */
|
|
|
819
|
|
50
|
820 h = ngx_list_push(&r->headers_in.headers);
|
|
|
821 if (h == NULL) {
|
|
0
|
822 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
823 return;
|
|
|
824 }
|
|
|
825
|
|
56
|
826 h->hash = r->header_hash;
|
|
|
827
|
|
0
|
828 h->key.len = r->header_name_end - r->header_name_start;
|
|
|
829 h->key.data = r->header_name_start;
|
|
|
830 h->key.data[h->key.len] = '\0';
|
|
|
831
|
|
|
832 h->value.len = r->header_end - r->header_start;
|
|
|
833 h->value.data = r->header_start;
|
|
|
834 h->value.data[h->value.len] = '\0';
|
|
|
835
|
|
58
|
836 key = h->hash % cmcf->headers_in_hash.hash_size;
|
|
|
837
|
|
|
838 if (hh[key].name.len == h->key.len
|
|
|
839 && ngx_strcasecmp(hh[key].name.data, h->key.data) == 0)
|
|
0
|
840 {
|
|
58
|
841 if (hh[key].handler(r, h, hh[key].offset) != NGX_OK) {
|
|
0
|
842 return;
|
|
|
843 }
|
|
|
844 }
|
|
|
845
|
|
|
846 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
10
|
847 "http header: \"%V: %V\"",
|
|
|
848 &h->key, &h->value);
|
|
0
|
849
|
|
|
850 continue;
|
|
54
|
851 }
|
|
|
852
|
|
|
853 if (rc == NGX_HTTP_PARSE_HEADER_DONE) {
|
|
0
|
854
|
|
|
855 /* a whole header has been parsed successfully */
|
|
|
856
|
|
|
857 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
858 "http header done");
|
|
|
859
|
|
24
|
860 r->request_length += r->header_in->pos - r->header_in->start;
|
|
|
861
|
|
0
|
862 r->http_state = NGX_HTTP_PROCESS_REQUEST_STATE;
|
|
|
863
|
|
|
864 rc = ngx_http_process_request_header(r);
|
|
|
865
|
|
|
866 if (rc != NGX_OK) {
|
|
|
867 return;
|
|
|
868 }
|
|
|
869
|
|
|
870 if (rev->timer_set) {
|
|
|
871 ngx_del_timer(rev);
|
|
|
872 }
|
|
|
873
|
|
|
874 #if (NGX_STAT_STUB)
|
|
110
|
875 ngx_atomic_fetch_add(ngx_stat_reading, -1);
|
|
0
|
876 r->stat_reading = 0;
|
|
110
|
877 ngx_atomic_fetch_add(ngx_stat_writing, 1);
|
|
0
|
878 r->stat_writing = 1;
|
|
|
879 #endif
|
|
|
880
|
|
58
|
881 rev->handler = ngx_http_request_handler;
|
|
|
882 c->write->handler = ngx_http_request_handler;
|
|
|
883 r->read_event_handler = ngx_http_block_read;
|
|
|
884
|
|
0
|
885 ngx_http_handler(r);
|
|
86
|
886
|
|
0
|
887 return;
|
|
54
|
888 }
|
|
|
889
|
|
|
890 if (rc == NGX_AGAIN) {
|
|
|
891
|
|
|
892 /* a header line parsing is still not complete */
|
|
|
893
|
|
|
894 continue;
|
|
0
|
895 }
|
|
|
896
|
|
54
|
897 /* rc == NGX_HTTP_PARSE_INVALID_HEADER: "\r" is not followed by "\n" */
|
|
|
898
|
|
|
899 header.len = r->header_end - r->header_name_start;
|
|
|
900 header.data = r->header_name_start;
|
|
|
901 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
|
902 "client sent invalid header line: \"%V\\r...\"",
|
|
|
903 &header);
|
|
|
904 ngx_http_close_request(r, NGX_HTTP_BAD_REQUEST);
|
|
|
905 return;
|
|
0
|
906 }
|
|
|
907 }
|
|
|
908
|
|
|
909
|
|
50
|
910 static ssize_t
|
|
|
911 ngx_http_read_request_header(ngx_http_request_t *r)
|
|
0
|
912 {
|
|
|
913 ssize_t n;
|
|
|
914 ngx_event_t *rev;
|
|
|
915 ngx_http_core_srv_conf_t *cscf;
|
|
|
916
|
|
|
917 rev = r->connection->read;
|
|
|
918
|
|
|
919 n = r->header_in->last - r->header_in->pos;
|
|
|
920
|
|
|
921 if (n > 0) {
|
|
|
922 return n;
|
|
|
923 }
|
|
|
924
|
|
72
|
925 if (rev->ready) {
|
|
|
926 n = r->connection->recv(r->connection, r->header_in->last,
|
|
|
927 r->header_in->end - r->header_in->last);
|
|
|
928 } else {
|
|
|
929 n = NGX_AGAIN;
|
|
0
|
930 }
|
|
|
931
|
|
|
932 if (n == NGX_AGAIN) {
|
|
|
933 if (!r->header_timeout_set) {
|
|
|
934 cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
|
|
|
935 ngx_add_timer(rev, cscf->client_header_timeout);
|
|
|
936 r->header_timeout_set = 1;
|
|
|
937 }
|
|
|
938
|
|
|
939 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) {
|
|
|
940 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
941 return NGX_ERROR;
|
|
|
942 }
|
|
|
943
|
|
|
944 return NGX_AGAIN;
|
|
|
945 }
|
|
|
946
|
|
|
947 if (n == 0) {
|
|
|
948 ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
|
|
|
949 "client closed prematurely connection");
|
|
|
950 }
|
|
|
951
|
|
|
952 if (n == 0 || n == NGX_ERROR) {
|
|
|
953 ngx_http_close_request(r, NGX_HTTP_BAD_REQUEST);
|
|
|
954 return NGX_ERROR;
|
|
|
955 }
|
|
|
956
|
|
|
957 r->header_in->last += n;
|
|
|
958
|
|
|
959 return n;
|
|
|
960 }
|
|
|
961
|
|
|
962
|
|
50
|
963 static ngx_int_t
|
|
|
964 ngx_http_alloc_large_header_buffer(ngx_http_request_t *r,
|
|
|
965 ngx_uint_t request_line)
|
|
0
|
966 {
|
|
|
967 u_char *old, *new;
|
|
|
968 ngx_buf_t *b;
|
|
|
969 ngx_http_connection_t *hc;
|
|
|
970 ngx_http_core_srv_conf_t *cscf;
|
|
|
971
|
|
|
972 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
973 "http alloc large header buffer");
|
|
|
974
|
|
|
975 if (request_line && r->state == 0) {
|
|
|
976
|
|
|
977 /* the client fills up the buffer with "\r\n" */
|
|
|
978
|
|
24
|
979 r->request_length += r->header_in->end - r->header_in->start;
|
|
|
980
|
|
0
|
981 r->header_in->pos = r->header_in->start;
|
|
|
982 r->header_in->last = r->header_in->start;
|
|
|
983
|
|
|
984 return NGX_OK;
|
|
|
985 }
|
|
|
986
|
|
|
987 old = request_line ? r->request_start : r->header_name_start;
|
|
|
988
|
|
|
989 cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
|
|
|
990
|
|
|
991 if (r->state != 0
|
|
|
992 && (size_t) (r->header_in->pos - old)
|
|
|
993 >= cscf->large_client_header_buffers.size)
|
|
|
994 {
|
|
|
995 return NGX_DECLINED;
|
|
|
996 }
|
|
|
997
|
|
|
998 hc = r->http_connection;
|
|
|
999
|
|
|
1000 if (hc->nfree) {
|
|
|
1001 b = hc->free[--hc->nfree];
|
|
|
1002
|
|
|
1003 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
10
|
1004 "http large header free: %p %uz",
|
|
0
|
1005 b->pos, b->end - b->last);
|
|
|
1006
|
|
|
1007 } else if (hc->nbusy < cscf->large_client_header_buffers.num) {
|
|
|
1008
|
|
|
1009 if (hc->busy == NULL) {
|
|
|
1010 hc->busy = ngx_palloc(r->connection->pool,
|
|
|
1011 cscf->large_client_header_buffers.num * sizeof(ngx_buf_t *));
|
|
|
1012 if (hc->busy == NULL) {
|
|
|
1013 return NGX_ERROR;
|
|
|
1014 }
|
|
|
1015 }
|
|
|
1016
|
|
|
1017 b = ngx_create_temp_buf(r->connection->pool,
|
|
|
1018 cscf->large_client_header_buffers.size);
|
|
|
1019 if (b == NULL) {
|
|
|
1020 return NGX_ERROR;
|
|
|
1021 }
|
|
|
1022
|
|
|
1023 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
10
|
1024 "http large header alloc: %p %uz",
|
|
0
|
1025 b->pos, b->end - b->last);
|
|
|
1026
|
|
|
1027 } else {
|
|
|
1028 return NGX_DECLINED;
|
|
|
1029 }
|
|
|
1030
|
|
|
1031 hc->busy[hc->nbusy++] = b;
|
|
|
1032
|
|
|
1033 if (r->state == 0) {
|
|
|
1034 /*
|
|
|
1035 * r->state == 0 means that a header line was parsed successfully
|
|
|
1036 * and we do not need to copy incomplete header line and
|
|
|
1037 * to relocate the parser header pointers
|
|
|
1038 */
|
|
|
1039
|
|
24
|
1040 r->request_length += r->header_in->end - r->header_in->start;
|
|
|
1041
|
|
0
|
1042 r->header_in = b;
|
|
|
1043
|
|
|
1044 return NGX_OK;
|
|
|
1045 }
|
|
|
1046
|
|
|
1047 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1048 "http large header copy: %d", r->header_in->pos - old);
|
|
|
1049
|
|
24
|
1050 r->request_length += old - r->header_in->start;
|
|
|
1051
|
|
0
|
1052 new = b->start;
|
|
|
1053
|
|
|
1054 ngx_memcpy(new, old, r->header_in->pos - old);
|
|
|
1055
|
|
|
1056 b->pos = new + (r->header_in->pos - old);
|
|
|
1057 b->last = new + (r->header_in->pos - old);
|
|
|
1058
|
|
|
1059 if (request_line) {
|
|
|
1060 r->request_start = new;
|
|
|
1061
|
|
|
1062 if (r->request_end) {
|
|
|
1063 r->request_end = new + (r->request_end - old);
|
|
|
1064 }
|
|
|
1065
|
|
|
1066 r->method_end = new + (r->method_end - old);
|
|
|
1067
|
|
|
1068 r->uri_start = new + (r->uri_start - old);
|
|
|
1069 r->uri_end = new + (r->uri_end - old);
|
|
|
1070
|
|
|
1071 if (r->schema_start) {
|
|
|
1072 r->schema_start = new + (r->schema_start - old);
|
|
|
1073 r->schema_end = new + (r->schema_end - old);
|
|
|
1074 }
|
|
|
1075
|
|
|
1076 if (r->host_start) {
|
|
|
1077 r->host_start = new + (r->host_start - old);
|
|
|
1078 r->host_end = new + (r->host_end - old);
|
|
|
1079 }
|
|
|
1080
|
|
|
1081 if (r->port_start) {
|
|
|
1082 r->port_start = new + (r->port_start - old);
|
|
|
1083 r->port_end = new + (r->port_end - old);
|
|
|
1084 }
|
|
|
1085
|
|
|
1086 if (r->uri_ext) {
|
|
|
1087 r->uri_ext = new + (r->uri_ext - old);
|
|
|
1088 }
|
|
|
1089
|
|
|
1090 if (r->args_start) {
|
|
|
1091 r->args_start = new + (r->args_start - old);
|
|
|
1092 }
|
|
|
1093
|
|
|
1094 } else {
|
|
|
1095 r->header_name_start = new;
|
|
|
1096 r->header_name_end = new + (r->header_name_end - old);
|
|
|
1097 r->header_start = new + (r->header_start - old);
|
|
|
1098 r->header_end = new + (r->header_end - old);
|
|
|
1099 }
|
|
|
1100
|
|
|
1101 r->header_in = b;
|
|
|
1102
|
|
|
1103 return NGX_OK;
|
|
|
1104 }
|
|
|
1105
|
|
|
1106
|
|
50
|
1107 static ngx_int_t
|
|
58
|
1108 ngx_http_process_header_line(ngx_http_request_t *r, ngx_table_elt_t *h,
|
|
|
1109 ngx_uint_t offset)
|
|
|
1110 {
|
|
|
1111 ngx_table_elt_t **ph;
|
|
|
1112
|
|
|
1113 ph = (ngx_table_elt_t **) ((char *) &r->headers_in + offset);
|
|
|
1114
|
|
|
1115 if (*ph == NULL) {
|
|
|
1116 *ph = h;
|
|
|
1117 }
|
|
|
1118
|
|
|
1119 return NGX_OK;
|
|
|
1120 }
|
|
|
1121
|
|
|
1122
|
|
|
1123 static ngx_int_t
|
|
72
|
1124 ngx_http_process_unique_header_line(ngx_http_request_t *r, ngx_table_elt_t *h,
|
|
|
1125 ngx_uint_t offset)
|
|
|
1126 {
|
|
|
1127 ngx_table_elt_t **ph;
|
|
|
1128
|
|
|
1129 ph = (ngx_table_elt_t **) ((char *) &r->headers_in + offset);
|
|
|
1130
|
|
|
1131 if (*ph == NULL) {
|
|
|
1132 *ph = h;
|
|
|
1133 return NGX_OK;
|
|
|
1134 }
|
|
|
1135
|
|
|
1136 ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
|
|
|
1137 "client sent duplicate header line: \"%V: %V\"",
|
|
|
1138 &h->key, &h->value);
|
|
|
1139
|
|
|
1140 ngx_http_finalize_request(r, NGX_HTTP_BAD_REQUEST);
|
|
|
1141
|
|
|
1142 return NGX_ERROR;
|
|
|
1143 }
|
|
|
1144
|
|
|
1145
|
|
|
1146 static ngx_int_t
|
|
58
|
1147 ngx_http_process_cookie(ngx_http_request_t *r, ngx_table_elt_t *h,
|
|
|
1148 ngx_uint_t offset)
|
|
|
1149 {
|
|
|
1150 ngx_table_elt_t **cookie;
|
|
|
1151
|
|
|
1152 cookie = ngx_array_push(&r->headers_in.cookies);
|
|
72
|
1153 if (cookie) {
|
|
|
1154 *cookie = h;
|
|
|
1155 return NGX_OK;
|
|
58
|
1156 }
|
|
|
1157
|
|
72
|
1158 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
1159
|
|
|
1160 return NGX_ERROR;
|
|
58
|
1161 }
|
|
|
1162
|
|
|
1163
|
|
|
1164 static ngx_int_t
|
|
50
|
1165 ngx_http_process_request_header(ngx_http_request_t *r)
|
|
0
|
1166 {
|
|
54
|
1167 size_t len;
|
|
|
1168 u_char *ua, *user_agent, ch;
|
|
|
1169 ngx_http_core_srv_conf_t *cscf;
|
|
0
|
1170
|
|
|
1171 if (r->headers_in.host) {
|
|
|
1172 for (len = 0; len < r->headers_in.host->value.len; len++) {
|
|
26
|
1173 ch = r->headers_in.host->value.data[len];
|
|
|
1174
|
|
|
1175 if (ch == ':') {
|
|
0
|
1176 break;
|
|
|
1177 }
|
|
26
|
1178
|
|
|
1179 r->headers_in.host->value.data[len] = ngx_tolower(ch);
|
|
0
|
1180 }
|
|
54
|
1181
|
|
58
|
1182 if (r->headers_in.host->value.data[len - 1] == '.') {
|
|
|
1183 len--;
|
|
|
1184 }
|
|
|
1185
|
|
0
|
1186 r->headers_in.host_name_len = len;
|
|
|
1187
|
|
26
|
1188 if (ngx_http_find_virtual_server(r) != NGX_OK) {
|
|
54
|
1189 ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
|
|
|
1190 "client sent invalid \"Host\" header");
|
|
|
1191
|
|
|
1192 cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
|
|
|
1193
|
|
|
1194 if (cscf->restrict_host_names == NGX_HTTP_RESTRICT_HOST_CLOSE) {
|
|
|
1195 ngx_http_close_request(r, NGX_HTTP_BAD_REQUEST);
|
|
|
1196 return NGX_ERROR;
|
|
|
1197 }
|
|
|
1198
|
|
|
1199 ngx_http_finalize_request(r, NGX_HTTP_INVALID_HOST);
|
|
|
1200 return NGX_ERROR;
|
|
0
|
1201 }
|
|
|
1202
|
|
|
1203 } else {
|
|
|
1204 if (r->http_version > NGX_HTTP_VERSION_10) {
|
|
54
|
1205 ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
|
|
|
1206 "client sent HTTP/1.1 request without \"Host\" header");
|
|
|
1207 ngx_http_finalize_request(r, NGX_HTTP_BAD_REQUEST);
|
|
|
1208 return NGX_ERROR;
|
|
0
|
1209 }
|
|
54
|
1210
|
|
0
|
1211 r->headers_in.host_name_len = 0;
|
|
|
1212 }
|
|
|
1213
|
|
|
1214 if (r->headers_in.content_length) {
|
|
|
1215 r->headers_in.content_length_n =
|
|
50
|
1216 ngx_atosz(r->headers_in.content_length->value.data,
|
|
0
|
1217 r->headers_in.content_length->value.len);
|
|
|
1218
|
|
|
1219 if (r->headers_in.content_length_n == NGX_ERROR) {
|
|
54
|
1220 ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
|
|
|
1221 "client sent invalid \"Content-Length\" header");
|
|
130
|
1222 ngx_http_finalize_request(r, NGX_HTTP_LENGTH_REQUIRED);
|
|
54
|
1223 return NGX_ERROR;
|
|
0
|
1224 }
|
|
|
1225 }
|
|
|
1226
|
|
32
|
1227 if (r->method == NGX_HTTP_POST && r->headers_in.content_length_n == -1) {
|
|
54
|
1228 ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
|
|
|
1229 "client sent POST method without \"Content-Length\" header");
|
|
130
|
1230 ngx_http_finalize_request(r, NGX_HTTP_LENGTH_REQUIRED);
|
|
|
1231 return NGX_ERROR;
|
|
|
1232 }
|
|
|
1233
|
|
|
1234 if (r->headers_in.transfer_encoding
|
|
|
1235 && ngx_strstr(r->headers_in.transfer_encoding->value.data, "chunked"))
|
|
|
1236 {
|
|
|
1237 ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
|
|
|
1238 "client sent \"Transfer-Encoding: chunked\" header");
|
|
|
1239 ngx_http_finalize_request(r, NGX_HTTP_LENGTH_REQUIRED);
|
|
54
|
1240 return NGX_ERROR;
|
|
0
|
1241 }
|
|
|
1242
|
|
|
1243 if (r->plain_http) {
|
|
54
|
1244 ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
|
|
|
1245 "client sent plain HTTP request to HTTPS port");
|
|
|
1246 ngx_http_finalize_request(r, NGX_HTTP_TO_HTTPS);
|
|
|
1247 return NGX_ERROR;
|
|
0
|
1248 }
|
|
|
1249
|
|
|
1250 if (r->headers_in.connection) {
|
|
|
1251 if (r->headers_in.connection->value.len == 5
|
|
|
1252 && ngx_strcasecmp(r->headers_in.connection->value.data, "close")
|
|
58
|
1253 == 0)
|
|
0
|
1254 {
|
|
|
1255 r->headers_in.connection_type = NGX_HTTP_CONNECTION_CLOSE;
|
|
|
1256
|
|
|
1257 } else if (r->headers_in.connection->value.len == 10
|
|
|
1258 && ngx_strcasecmp(r->headers_in.connection->value.data,
|
|
58
|
1259 "keep-alive") == 0)
|
|
0
|
1260 {
|
|
|
1261 r->headers_in.connection_type = NGX_HTTP_CONNECTION_KEEP_ALIVE;
|
|
|
1262
|
|
|
1263 if (r->headers_in.keep_alive) {
|
|
|
1264 r->headers_in.keep_alive_n =
|
|
50
|
1265 ngx_atotm(r->headers_in.keep_alive->value.data,
|
|
0
|
1266 r->headers_in.keep_alive->value.len);
|
|
|
1267 }
|
|
|
1268 }
|
|
|
1269 }
|
|
|
1270
|
|
|
1271 if (r->headers_in.user_agent) {
|
|
|
1272
|
|
|
1273 /*
|
|
|
1274 * check some widespread browsers while the headers are still
|
|
|
1275 * in CPU cache
|
|
|
1276 */
|
|
|
1277
|
|
|
1278 user_agent = r->headers_in.user_agent->value.data;
|
|
|
1279
|
|
|
1280 ua = (u_char *) ngx_strstr(user_agent, "MSIE");
|
|
|
1281
|
|
|
1282 if (ua && ua + 8 < user_agent + r->headers_in.user_agent->value.len) {
|
|
|
1283
|
|
|
1284 r->headers_in.msie = 1;
|
|
|
1285
|
|
|
1286 if (ua[4] == ' ' && ua[5] == '4' && ua[6] == '.') {
|
|
|
1287 r->headers_in.msie4 = 1;
|
|
|
1288 }
|
|
|
1289
|
|
|
1290 #if 0
|
|
|
1291 /* MSIE ignores the SSL "close notify" alert */
|
|
22
|
1292 if (c->ssl) {
|
|
96
|
1293 c->ssl->no_send_shutdown = 1;
|
|
22
|
1294 }
|
|
0
|
1295 #endif
|
|
|
1296 }
|
|
|
1297
|
|
|
1298 if (ngx_strstr(user_agent, "Opera")) {
|
|
|
1299 r->headers_in.opera = 1;
|
|
|
1300 r->headers_in.msie = 0;
|
|
|
1301 r->headers_in.msie4 = 0;
|
|
|
1302 }
|
|
|
1303
|
|
|
1304 if (!r->headers_in.msie && !r->headers_in.opera) {
|
|
|
1305
|
|
|
1306 if (ngx_strstr(user_agent, "Gecko/")) {
|
|
|
1307 r->headers_in.gecko = 1;
|
|
|
1308
|
|
|
1309 } else if (ngx_strstr(user_agent, "Konqueror")) {
|
|
|
1310 r->headers_in.konqueror = 1;
|
|
|
1311 }
|
|
|
1312 }
|
|
|
1313 }
|
|
|
1314
|
|
|
1315 return NGX_OK;
|
|
|
1316 }
|
|
|
1317
|
|
|
1318
|
|
50
|
1319 static ngx_int_t
|
|
|
1320 ngx_http_find_virtual_server(ngx_http_request_t *r)
|
|
26
|
1321 {
|
|
142
|
1322 size_t len;
|
|
|
1323 u_char *host;
|
|
|
1324 ngx_http_virtual_names_t *vn;
|
|
|
1325 ngx_http_core_loc_conf_t *clcf;
|
|
|
1326 ngx_http_core_srv_conf_t *cscf;
|
|
|
1327
|
|
|
1328 vn = r->virtual_names;
|
|
|
1329
|
|
|
1330 if (vn == NULL) {
|
|
|
1331 return NGX_OK;
|
|
26
|
1332 }
|
|
|
1333
|
|
142
|
1334 host = r->headers_in.host->value.data;
|
|
|
1335 len = r->headers_in.host_name_len;
|
|
|
1336
|
|
|
1337 /* STUB: ngx_hash_key() here is STUB */
|
|
|
1338
|
|
|
1339 if (vn->hash.buckets) {
|
|
|
1340 cscf = ngx_hash_find(&vn->hash, ngx_hash_key(host, len), host, len);
|
|
|
1341 if (cscf) {
|
|
58
|
1342 goto found;
|
|
26
|
1343 }
|
|
|
1344 }
|
|
|
1345
|
|
142
|
1346 if (vn->dns_wildcards && vn->dns_wildcards->hash.buckets) {
|
|
|
1347 cscf = ngx_hash_find_wildcard(vn->dns_wildcards, host, len);
|
|
|
1348
|
|
|
1349 if (cscf) {
|
|
|
1350 goto found;
|
|
26
|
1351 }
|
|
|
1352 }
|
|
|
1353
|
|
58
|
1354 cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
|
|
|
1355
|
|
|
1356 if (cscf->restrict_host_names == NGX_HTTP_RESTRICT_HOST_OFF) {
|
|
26
|
1357 return NGX_OK;
|
|
|
1358 }
|
|
|
1359
|
|
58
|
1360 return NGX_ERROR;
|
|
|
1361
|
|
|
1362 found:
|
|
|
1363
|
|
142
|
1364 r->server_name.len = len;
|
|
|
1365 r->server_name.data = host;
|
|
|
1366
|
|
|
1367 r->srv_conf = cscf->ctx->srv_conf;
|
|
|
1368 r->loc_conf = cscf->ctx->loc_conf;
|
|
58
|
1369
|
|
|
1370 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
1371 r->connection->log->file = clcf->err_log->file;
|
|
|
1372
|
|
|
1373 if (!(r->connection->log->log_level & NGX_LOG_DEBUG_CONNECTION)) {
|
|
|
1374 r->connection->log->log_level = clcf->err_log->log_level;
|
|
26
|
1375 }
|
|
|
1376
|
|
|
1377 return NGX_OK;
|
|
|
1378 }
|
|
|
1379
|
|
|
1380
|
|
58
|
1381 static void
|
|
|
1382 ngx_http_request_handler(ngx_event_t *ev)
|
|
|
1383 {
|
|
|
1384 ngx_connection_t *c;
|
|
|
1385 ngx_http_request_t *r;
|
|
|
1386
|
|
|
1387 c = ev->data;
|
|
|
1388 r = c->data;
|
|
|
1389
|
|
|
1390 if (ev->write) {
|
|
|
1391 r->write_event_handler(r);
|
|
|
1392
|
|
|
1393 } else {
|
|
|
1394 r->read_event_handler(r);
|
|
|
1395 }
|
|
|
1396 }
|
|
|
1397
|
|
|
1398
|
|
50
|
1399 void
|
|
58
|
1400 ngx_http_finalize_request(ngx_http_request_t *r, ngx_int_t rc)
|
|
0
|
1401 {
|
|
58
|
1402 ngx_http_request_t *pr;
|
|
0
|
1403 ngx_http_core_loc_conf_t *clcf;
|
|
|
1404
|
|
58
|
1405 if (rc == NGX_DONE) {
|
|
118
|
1406 /* the request pool may be already destroyed */
|
|
58
|
1407 return;
|
|
|
1408 }
|
|
|
1409
|
|
132
|
1410 ngx_log_debug3(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1411 "http finalize request: %d, \"%V?%V\"",
|
|
|
1412 rc, &r->uri, &r->args);
|
|
|
1413
|
|
|
1414 if (rc == NGX_ERROR || r->connection->error) {
|
|
118
|
1415 ngx_http_close_request(r, 0);
|
|
0
|
1416 return;
|
|
|
1417 }
|
|
|
1418
|
|
118
|
1419 if (rc >= NGX_HTTP_SPECIAL_RESPONSE || rc == NGX_HTTP_NO_CONTENT) {
|
|
|
1420
|
|
136
|
1421 if (rc == NGX_HTTP_CLOSE) {
|
|
|
1422 ngx_http_close_request(r, rc);
|
|
|
1423 return;
|
|
|
1424 }
|
|
|
1425
|
|
118
|
1426 if (r->main == r) {
|
|
|
1427 if (r->connection->read->timer_set) {
|
|
|
1428 ngx_del_timer(r->connection->read);
|
|
|
1429 }
|
|
|
1430
|
|
|
1431 if (r->connection->write->timer_set) {
|
|
|
1432 ngx_del_timer(r->connection->write);
|
|
|
1433 }
|
|
|
1434 }
|
|
|
1435
|
|
|
1436 ngx_http_finalize_request(r, ngx_http_special_response_handler(r, rc));
|
|
|
1437
|
|
|
1438 return;
|
|
|
1439 }
|
|
|
1440
|
|
|
1441 if (r->main != r || rc == NGX_AGAIN) {
|
|
74
|
1442 if (ngx_http_set_write_handler(r) != NGX_OK) {
|
|
|
1443 return;
|
|
|
1444 }
|
|
58
|
1445 }
|
|
|
1446
|
|
|
1447 r->done = 1;
|
|
|
1448
|
|
|
1449 if (r != r->connection->data) {
|
|
132
|
1450 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1451 "http finalize non-active request: \"%V?%V\"",
|
|
|
1452 &r->uri, &r->args);
|
|
58
|
1453 return;
|
|
|
1454 }
|
|
|
1455
|
|
118
|
1456 if (r->main != r) {
|
|
58
|
1457
|
|
|
1458 pr = r->parent;
|
|
|
1459
|
|
132
|
1460 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1461 "http parent request: \"%V?%V\"", &pr->uri, &pr->args);
|
|
76
|
1462
|
|
58
|
1463 if (rc != NGX_AGAIN) {
|
|
|
1464 pr->connection->data = pr;
|
|
|
1465 }
|
|
|
1466
|
|
|
1467 if (pr->postponed) {
|
|
|
1468
|
|
132
|
1469 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1470 "http request: \"%V?%V\" has postponed",
|
|
|
1471 &pr->uri, &pr->args);
|
|
76
|
1472
|
|
58
|
1473 if (rc != NGX_AGAIN && pr->postponed->request == r) {
|
|
|
1474 pr->postponed = pr->postponed->next;
|
|
|
1475
|
|
|
1476 if (pr->postponed == NULL) {
|
|
|
1477 return;
|
|
|
1478 }
|
|
|
1479 }
|
|
|
1480
|
|
132
|
1481 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1482 "http request: \"%V?%V\" still has postponed",
|
|
|
1483 &pr->uri, &pr->args);
|
|
|
1484
|
|
|
1485 if (pr->done || pr->postponed->out) {
|
|
|
1486 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1487 "http wake parent request: \"%V?%V\"",
|
|
|
1488 &pr->uri, &pr->args);
|
|
58
|
1489
|
|
|
1490 pr->write_event_handler(pr);
|
|
|
1491 }
|
|
|
1492 }
|
|
|
1493
|
|
|
1494 return;
|
|
|
1495 }
|
|
0
|
1496
|
|
118
|
1497 if (rc == NGX_AGAIN) {
|
|
0
|
1498 return;
|
|
76
|
1499 }
|
|
|
1500
|
|
118
|
1501 if (r->out) {
|
|
74
|
1502 (void) ngx_http_set_write_handler(r);
|
|
0
|
1503 return;
|
|
|
1504 }
|
|
|
1505
|
|
126
|
1506 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
1507
|
|
|
1508 if (clcf->post_action.data) {
|
|
|
1509 ngx_http_internal_redirect(r, &clcf->post_action, NULL);
|
|
|
1510 return;
|
|
|
1511 }
|
|
|
1512
|
|
0
|
1513 if (r->connection->read->timer_set) {
|
|
|
1514 ngx_del_timer(r->connection->read);
|
|
|
1515 }
|
|
|
1516
|
|
|
1517 if (r->connection->write->timer_set) {
|
|
|
1518 r->connection->write->delayed = 0;
|
|
|
1519 ngx_del_timer(r->connection->write);
|
|
|
1520 }
|
|
|
1521
|
|
138
|
1522 if (r->connection->destroyed) {
|
|
|
1523 return;
|
|
|
1524 }
|
|
|
1525
|
|
136
|
1526 #if 0
|
|
0
|
1527 if (r->connection->read->pending_eof) {
|
|
22
|
1528 #if (NGX_HAVE_KQUEUE)
|
|
0
|
1529 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log,
|
|
|
1530 r->connection->read->kq_errno,
|
|
|
1531 "kevent() reported about an closed connection");
|
|
|
1532 #endif
|
|
|
1533 ngx_http_close_request(r, 0);
|
|
|
1534 return;
|
|
|
1535 }
|
|
136
|
1536 #endif
|
|
0
|
1537
|
|
|
1538 if (!ngx_terminate
|
|
|
1539 && !ngx_exiting
|
|
|
1540 && r->keepalive != 0
|
|
|
1541 && clcf->keepalive_timeout > 0)
|
|
|
1542 {
|
|
|
1543 ngx_http_set_keepalive(r);
|
|
|
1544 return;
|
|
|
1545
|
|
|
1546 } else if (r->lingering_close && clcf->lingering_timeout > 0) {
|
|
|
1547 ngx_http_set_lingering_close(r);
|
|
|
1548 return;
|
|
|
1549 }
|
|
|
1550
|
|
|
1551 ngx_http_close_request(r, 0);
|
|
|
1552 }
|
|
|
1553
|
|
|
1554
|
|
74
|
1555 static ngx_int_t
|
|
50
|
1556 ngx_http_set_write_handler(ngx_http_request_t *r)
|
|
0
|
1557 {
|
|
|
1558 ngx_event_t *wev;
|
|
|
1559 ngx_http_core_loc_conf_t *clcf;
|
|
|
1560
|
|
58
|
1561 r->http_state = NGX_HTTP_WRITING_REQUEST_STATE;
|
|
|
1562
|
|
74
|
1563 r->write_event_handler = ngx_http_writer;
|
|
|
1564
|
|
0
|
1565 wev = r->connection->write;
|
|
|
1566
|
|
|
1567 if (wev->ready && wev->delayed) {
|
|
74
|
1568 return NGX_OK;
|
|
0
|
1569 }
|
|
|
1570
|
|
58
|
1571 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
0
|
1572 if (!wev->delayed) {
|
|
|
1573 ngx_add_timer(wev, clcf->send_timeout);
|
|
|
1574 }
|
|
|
1575
|
|
2
|
1576 if (ngx_handle_write_event(wev, clcf->send_lowat) == NGX_ERROR) {
|
|
0
|
1577 ngx_http_close_request(r, 0);
|
|
74
|
1578 return NGX_ERROR;
|
|
0
|
1579 }
|
|
74
|
1580
|
|
|
1581 return NGX_OK;
|
|
0
|
1582 }
|
|
|
1583
|
|
|
1584
|
|
58
|
1585 static void
|
|
|
1586 ngx_http_writer(ngx_http_request_t *r)
|
|
0
|
1587 {
|
|
|
1588 int rc;
|
|
58
|
1589 ngx_event_t *wev;
|
|
0
|
1590 ngx_connection_t *c;
|
|
|
1591 ngx_http_core_loc_conf_t *clcf;
|
|
|
1592
|
|
58
|
1593 c = r->connection;
|
|
|
1594 wev = c->write;
|
|
|
1595
|
|
132
|
1596 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, wev->log, 0,
|
|
|
1597 "http writer handler: \"%V?%V\"", &r->uri, &r->args);
|
|
0
|
1598
|
|
|
1599 if (wev->timedout) {
|
|
|
1600 if (!wev->delayed) {
|
|
54
|
1601 ngx_log_error(NGX_LOG_INFO, c->log, NGX_ETIMEDOUT,
|
|
|
1602 "client timed out");
|
|
|
1603 c->timedout = 1;
|
|
116
|
1604
|
|
118
|
1605 ngx_http_close_request(r, NGX_HTTP_REQUEST_TIME_OUT);
|
|
0
|
1606 return;
|
|
|
1607 }
|
|
|
1608
|
|
|
1609 wev->timedout = 0;
|
|
|
1610 wev->delayed = 0;
|
|
|
1611
|
|
|
1612 if (!wev->ready) {
|
|
102
|
1613 clcf = ngx_http_get_module_loc_conf(r->main, ngx_http_core_module);
|
|
0
|
1614 ngx_add_timer(wev, clcf->send_timeout);
|
|
|
1615
|
|
2
|
1616 if (ngx_handle_write_event(wev, clcf->send_lowat) == NGX_ERROR) {
|
|
118
|
1617 ngx_http_close_request(r, 0);
|
|
0
|
1618 }
|
|
|
1619
|
|
|
1620 return;
|
|
|
1621 }
|
|
|
1622
|
|
|
1623 } else {
|
|
|
1624 if (wev->delayed) {
|
|
|
1625 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, wev->log, 0,
|
|
|
1626 "http writer delayed");
|
|
|
1627
|
|
102
|
1628 clcf = ngx_http_get_module_loc_conf(r->main, ngx_http_core_module);
|
|
2
|
1629
|
|
|
1630 if (ngx_handle_write_event(wev, clcf->send_lowat) == NGX_ERROR) {
|
|
118
|
1631 ngx_http_close_request(r, 0);
|
|
0
|
1632 }
|
|
|
1633
|
|
|
1634 return;
|
|
|
1635 }
|
|
|
1636 }
|
|
|
1637
|
|
132
|
1638 rc = ngx_http_output_filter(r, NULL);
|
|
|
1639
|
|
|
1640 if (c->destroyed) {
|
|
|
1641 return;
|
|
58
|
1642 }
|
|
|
1643
|
|
132
|
1644 ngx_log_debug3(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
|
1645 "http writer output filter: %d, \"%V?%V\"",
|
|
|
1646 rc, &r->uri, &r->args);
|
|
0
|
1647
|
|
|
1648 if (rc == NGX_AGAIN) {
|
|
102
|
1649 clcf = ngx_http_get_module_loc_conf(r->main, ngx_http_core_module);
|
|
0
|
1650 if (!wev->ready && !wev->delayed) {
|
|
|
1651 ngx_add_timer(wev, clcf->send_timeout);
|
|
|
1652 }
|
|
|
1653
|
|
2
|
1654 if (ngx_handle_write_event(wev, clcf->send_lowat) == NGX_ERROR) {
|
|
118
|
1655 ngx_http_close_request(r, 0);
|
|
0
|
1656 }
|
|
|
1657
|
|
|
1658 return;
|
|
|
1659 }
|
|
|
1660
|
|
132
|
1661 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, wev->log, 0,
|
|
|
1662 "http writer done: \"%V?%V\"", &r->uri, &r->args);
|
|
0
|
1663
|
|
|
1664 ngx_http_finalize_request(r, rc);
|
|
|
1665 }
|
|
|
1666
|
|
|
1667
|
|
50
|
1668 static void
|
|
58
|
1669 ngx_http_block_read(ngx_http_request_t *r)
|
|
0
|
1670 {
|
|
58
|
1671 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1672 "http read blocked");
|
|
0
|
1673
|
|
|
1674 /* aio does not call this handler */
|
|
|
1675
|
|
58
|
1676 if ((ngx_event_flags & NGX_USE_LEVEL_EVENT)
|
|
|
1677 && r->connection->read->active)
|
|
|
1678 {
|
|
|
1679 if (ngx_del_event(r->connection->read, NGX_READ_EVENT, 0)
|
|
|
1680 == NGX_ERROR)
|
|
|
1681 {
|
|
0
|
1682 ngx_http_close_request(r, 0);
|
|
|
1683 }
|
|
|
1684 }
|
|
|
1685 }
|
|
|
1686
|
|
|
1687
|
|
50
|
1688 ngx_int_t
|
|
|
1689 ngx_http_discard_body(ngx_http_request_t *r)
|
|
0
|
1690 {
|
|
|
1691 ssize_t size;
|
|
|
1692 ngx_event_t *rev;
|
|
|
1693
|
|
102
|
1694 if (r->main != r) {
|
|
70
|
1695 return NGX_OK;
|
|
|
1696 }
|
|
|
1697
|
|
0
|
1698 rev = r->connection->read;
|
|
|
1699
|
|
|
1700 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, rev->log, 0, "http set discard body");
|
|
|
1701
|
|
|
1702 if (rev->timer_set) {
|
|
|
1703 ngx_del_timer(rev);
|
|
|
1704 }
|
|
|
1705
|
|
|
1706 if (r->headers_in.content_length_n <= 0) {
|
|
|
1707 return NGX_OK;
|
|
|
1708 }
|
|
|
1709
|
|
86
|
1710 r->discard_body = 1;
|
|
|
1711
|
|
0
|
1712 size = r->header_in->last - r->header_in->pos;
|
|
|
1713
|
|
|
1714 if (size) {
|
|
|
1715 if (r->headers_in.content_length_n > size) {
|
|
|
1716 r->headers_in.content_length_n -= size;
|
|
|
1717
|
|
|
1718 } else {
|
|
|
1719 r->header_in->pos += r->headers_in.content_length_n;
|
|
|
1720 r->headers_in.content_length_n = 0;
|
|
|
1721 return NGX_OK;
|
|
|
1722 }
|
|
|
1723 }
|
|
|
1724
|
|
58
|
1725 r->read_event_handler = ngx_http_read_discarded_body_handler;
|
|
|
1726
|
|
|
1727 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) {
|
|
0
|
1728 return NGX_HTTP_INTERNAL_SERVER_ERROR;
|
|
|
1729 }
|
|
|
1730
|
|
|
1731 return ngx_http_read_discarded_body(r);
|
|
|
1732 }
|
|
|
1733
|
|
|
1734
|
|
50
|
1735 static void
|
|
58
|
1736 ngx_http_read_discarded_body_handler(ngx_http_request_t *r)
|
|
0
|
1737 {
|
|
58
|
1738 ngx_int_t rc;
|
|
0
|
1739
|
|
|
1740 rc = ngx_http_read_discarded_body(r);
|
|
|
1741
|
|
|
1742 if (rc == NGX_AGAIN) {
|
|
58
|
1743 if (ngx_handle_read_event(r->connection->read, 0) == NGX_ERROR) {
|
|
0
|
1744 ngx_http_close_request(r, rc);
|
|
|
1745 return;
|
|
|
1746 }
|
|
|
1747 }
|
|
|
1748
|
|
|
1749 if (rc != NGX_OK) {
|
|
|
1750 ngx_http_close_request(r, rc);
|
|
|
1751 }
|
|
|
1752 }
|
|
|
1753
|
|
|
1754
|
|
50
|
1755 static ngx_int_t
|
|
|
1756 ngx_http_read_discarded_body(ngx_http_request_t *r)
|
|
0
|
1757 {
|
|
|
1758 ssize_t size, n;
|
|
|
1759 u_char buffer[NGX_HTTP_DISCARD_BUFFER_SIZE];
|
|
|
1760
|
|
|
1761 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1762 "http read discarded body");
|
|
|
1763
|
|
|
1764 if (r->headers_in.content_length_n == 0) {
|
|
|
1765 return NGX_OK;
|
|
|
1766 }
|
|
|
1767
|
|
|
1768
|
|
|
1769 size = r->headers_in.content_length_n;
|
|
|
1770
|
|
|
1771 if (size > NGX_HTTP_DISCARD_BUFFER_SIZE) {
|
|
|
1772 size = NGX_HTTP_DISCARD_BUFFER_SIZE;
|
|
|
1773 }
|
|
|
1774
|
|
|
1775 n = r->connection->recv(r->connection, buffer, size);
|
|
|
1776
|
|
|
1777 if (n == NGX_ERROR) {
|
|
|
1778
|
|
132
|
1779 r->connection->error = 1;
|
|
0
|
1780
|
|
|
1781 /*
|
|
|
1782 * if a client request body is discarded then we already set
|
|
|
1783 * some HTTP response code for client and we can ignore the error
|
|
|
1784 */
|
|
|
1785
|
|
|
1786 return NGX_OK;
|
|
|
1787 }
|
|
|
1788
|
|
|
1789 if (n == NGX_AGAIN) {
|
|
|
1790 return NGX_AGAIN;
|
|
|
1791 }
|
|
|
1792
|
|
|
1793 r->headers_in.content_length_n -= n;
|
|
|
1794
|
|
|
1795 return NGX_OK;
|
|
|
1796 }
|
|
|
1797
|
|
|
1798
|
|
50
|
1799 static void
|
|
|
1800 ngx_http_set_keepalive(ngx_http_request_t *r)
|
|
0
|
1801 {
|
|
2
|
1802 int tcp_nodelay;
|
|
0
|
1803 ngx_int_t i;
|
|
|
1804 ngx_buf_t *b, *f;
|
|
|
1805 ngx_event_t *rev, *wev;
|
|
|
1806 ngx_connection_t *c;
|
|
|
1807 ngx_http_connection_t *hc;
|
|
|
1808 ngx_http_core_srv_conf_t *cscf;
|
|
|
1809 ngx_http_core_loc_conf_t *clcf;
|
|
|
1810
|
|
|
1811 c = r->connection;
|
|
|
1812 rev = c->read;
|
|
|
1813
|
|
|
1814 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "set http keepalive handler");
|
|
|
1815
|
|
32
|
1816 c->log->action = "closing request";
|
|
0
|
1817
|
|
|
1818 hc = r->http_connection;
|
|
|
1819 b = r->header_in;
|
|
|
1820
|
|
|
1821 if (b->pos < b->last) {
|
|
|
1822
|
|
|
1823 /* the pipelined request */
|
|
|
1824
|
|
|
1825 if (b != c->buffer) {
|
|
|
1826
|
|
4
|
1827 /*
|
|
|
1828 * If the large header buffers were allocated while the previous
|
|
|
1829 * request processing then we do not use c->buffer for
|
|
|
1830 * the pipelined request (see ngx_http_init_request()).
|
|
126
|
1831 *
|
|
4
|
1832 * Now we would move the large header buffers to the free list.
|
|
|
1833 */
|
|
0
|
1834
|
|
|
1835 cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
|
|
|
1836
|
|
|
1837 if (hc->free == NULL) {
|
|
|
1838 hc->free = ngx_palloc(c->pool,
|
|
|
1839 cscf->large_client_header_buffers.num * sizeof(ngx_buf_t *));
|
|
|
1840
|
|
|
1841 if (hc->free == NULL) {
|
|
26
|
1842 ngx_http_close_request(r, 0);
|
|
0
|
1843 return;
|
|
|
1844 }
|
|
|
1845 }
|
|
|
1846
|
|
|
1847 for (i = 0; i < hc->nbusy - 1; i++) {
|
|
|
1848 f = hc->busy[i];
|
|
|
1849 hc->free[hc->nfree++] = f;
|
|
|
1850 f->pos = f->start;
|
|
|
1851 f->last = f->start;
|
|
|
1852 }
|
|
|
1853
|
|
|
1854 hc->busy[0] = b;
|
|
|
1855 hc->nbusy = 1;
|
|
|
1856 }
|
|
|
1857 }
|
|
|
1858
|
|
26
|
1859 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
1860
|
|
118
|
1861 ngx_http_request_done(r, 0);
|
|
|
1862
|
|
0
|
1863 c->data = hc;
|
|
|
1864
|
|
|
1865 ngx_add_timer(rev, clcf->keepalive_timeout);
|
|
|
1866
|
|
58
|
1867 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) {
|
|
0
|
1868 ngx_http_close_connection(c);
|
|
|
1869 return;
|
|
|
1870 }
|
|
|
1871
|
|
|
1872 wev = c->write;
|
|
58
|
1873 wev->handler = ngx_http_empty_handler;
|
|
0
|
1874
|
|
|
1875 if (b->pos < b->last) {
|
|
|
1876
|
|
|
1877 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "pipelined request");
|
|
|
1878
|
|
116
|
1879 #if (NGX_STAT_STUB)
|
|
|
1880 ngx_atomic_fetch_add(ngx_stat_reading, 1);
|
|
|
1881 #endif
|
|
|
1882
|
|
0
|
1883 hc->pipeline = 1;
|
|
32
|
1884 c->log->action = "reading client pipelined request line";
|
|
116
|
1885
|
|
0
|
1886 ngx_http_init_request(rev);
|
|
|
1887 return;
|
|
|
1888 }
|
|
|
1889
|
|
|
1890 hc->pipeline = 0;
|
|
|
1891
|
|
4
|
1892 /*
|
|
|
1893 * To keep a memory footprint as small as possible for an idle
|
|
|
1894 * keepalive connection we try to free the ngx_http_request_t and
|
|
|
1895 * c->buffer's memory if they were allocated outside the c->pool.
|
|
|
1896 * The large header buffers are always allocated outside the c->pool and
|
|
|
1897 * are freed too.
|
|
|
1898 */
|
|
|
1899
|
|
0
|
1900 if (ngx_pfree(c->pool, r) == NGX_OK) {
|
|
|
1901 hc->request = NULL;
|
|
|
1902 }
|
|
|
1903
|
|
|
1904 b = c->buffer;
|
|
|
1905
|
|
|
1906 if (ngx_pfree(c->pool, b->start) == NGX_OK) {
|
|
4
|
1907
|
|
|
1908 /*
|
|
|
1909 * the special note for ngx_http_keepalive_handler() that
|
|
|
1910 * c->buffer's memory was freed
|
|
|
1911 */
|
|
|
1912
|
|
0
|
1913 b->pos = NULL;
|
|
|
1914
|
|
|
1915 } else {
|
|
|
1916 b->pos = b->start;
|
|
|
1917 b->last = b->start;
|
|
|
1918 }
|
|
|
1919
|
|
10
|
1920 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, c->log, 0, "hc free: %p %d",
|
|
0
|
1921 hc->free, hc->nfree);
|
|
|
1922
|
|
|
1923 if (hc->free) {
|
|
|
1924 for (i = 0; i < hc->nfree; i++) {
|
|
|
1925 ngx_pfree(c->pool, hc->free[i]);
|
|
|
1926 hc->free[i] = NULL;
|
|
|
1927 }
|
|
|
1928
|
|
|
1929 hc->nfree = 0;
|
|
|
1930 }
|
|
|
1931
|
|
10
|
1932 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, c->log, 0, "hc busy: %p %d",
|
|
0
|
1933 hc->busy, hc->nbusy);
|
|
|
1934
|
|
|
1935 if (hc->busy) {
|
|
|
1936 for (i = 0; i < hc->nbusy; i++) {
|
|
|
1937 ngx_pfree(c->pool, hc->busy[i]);
|
|
|
1938 hc->busy[i] = NULL;
|
|
|
1939 }
|
|
|
1940
|
|
|
1941 hc->nbusy = 0;
|
|
|
1942 }
|
|
|
1943
|
|
58
|
1944 rev->handler = ngx_http_keepalive_handler;
|
|
0
|
1945
|
|
132
|
1946 if (wev->active && (ngx_event_flags & NGX_USE_LEVEL_EVENT)) {
|
|
|
1947 if (ngx_del_event(wev, NGX_WRITE_EVENT, 0) == NGX_ERROR) {
|
|
|
1948 ngx_http_close_connection(c);
|
|
|
1949 return;
|
|
0
|
1950 }
|
|
|
1951 }
|
|
|
1952
|
|
32
|
1953 c->log->action = "keepalive";
|
|
0
|
1954
|
|
|
1955 if (c->tcp_nopush == NGX_TCP_NOPUSH_SET) {
|
|
50
|
1956 if (ngx_tcp_push(c->fd) == -1) {
|
|
0
|
1957 ngx_connection_error(c, ngx_socket_errno, ngx_tcp_push_n " failed");
|
|
|
1958 ngx_http_close_connection(c);
|
|
|
1959 return;
|
|
|
1960 }
|
|
2
|
1961
|
|
0
|
1962 c->tcp_nopush = NGX_TCP_NOPUSH_UNSET;
|
|
22
|
1963 tcp_nodelay = ngx_tcp_nodelay_and_tcp_nopush ? 1 : 0;
|
|
2
|
1964
|
|
|
1965 } else {
|
|
22
|
1966 tcp_nodelay = 1;
|
|
|
1967 }
|
|
|
1968
|
|
32
|
1969 if (tcp_nodelay
|
|
|
1970 && clcf->tcp_nodelay
|
|
|
1971 && c->tcp_nodelay == NGX_TCP_NODELAY_UNSET)
|
|
|
1972 {
|
|
22
|
1973 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "tcp_nodelay");
|
|
|
1974
|
|
|
1975 if (setsockopt(c->fd, IPPROTO_TCP, TCP_NODELAY,
|
|
|
1976 (const void *) &tcp_nodelay, sizeof(int)) == -1)
|
|
|
1977 {
|
|
|
1978 ngx_connection_error(c, ngx_socket_errno,
|
|
|
1979 "setsockopt(TCP_NODELAY) failed");
|
|
|
1980 ngx_http_close_connection(c);
|
|
|
1981 return;
|
|
2
|
1982 }
|
|
22
|
1983
|
|
32
|
1984 c->tcp_nodelay = NGX_TCP_NODELAY_SET;
|
|
0
|
1985 }
|
|
|
1986
|
|
|
1987 #if 0
|
|
4
|
1988 /* if ngx_http_request_t was freed then we need some other place */
|
|
0
|
1989 r->http_state = NGX_HTTP_KEEPALIVE_STATE;
|
|
|
1990 #endif
|
|
|
1991
|
|
|
1992 if (rev->ready) {
|
|
|
1993 ngx_http_keepalive_handler(rev);
|
|
|
1994 }
|
|
|
1995 }
|
|
|
1996
|
|
|
1997
|
|
50
|
1998 static void
|
|
|
1999 ngx_http_keepalive_handler(ngx_event_t *rev)
|
|
0
|
2000 {
|
|
50
|
2001 size_t size;
|
|
|
2002 ssize_t n;
|
|
|
2003 ngx_buf_t *b;
|
|
|
2004 ngx_connection_t *c;
|
|
0
|
2005
|
|
|
2006 c = rev->data;
|
|
|
2007
|
|
|
2008 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "http keepalive handler");
|
|
|
2009
|
|
|
2010 if (rev->timedout) {
|
|
|
2011 ngx_http_close_connection(c);
|
|
|
2012 return;
|
|
|
2013 }
|
|
|
2014
|
|
18
|
2015 #if (NGX_HAVE_KQUEUE)
|
|
0
|
2016
|
|
4
|
2017 if (ngx_event_flags & NGX_USE_KQUEUE_EVENT) {
|
|
136
|
2018 if (rev->pending_eof) {
|
|
32
|
2019 c->log->handler = NULL;
|
|
0
|
2020 ngx_log_error(NGX_LOG_INFO, c->log, rev->kq_errno,
|
|
10
|
2021 "kevent() reported that client %V closed "
|
|
32
|
2022 "keepalive connection", &c->addr_text);
|
|
22
|
2023 #if (NGX_HTTP_SSL)
|
|
|
2024 if (c->ssl) {
|
|
96
|
2025 c->ssl->no_send_shutdown = 1;
|
|
22
|
2026 }
|
|
|
2027 #endif
|
|
0
|
2028 ngx_http_close_connection(c);
|
|
|
2029 return;
|
|
|
2030 }
|
|
|
2031 }
|
|
|
2032
|
|
|
2033 #endif
|
|
|
2034
|
|
|
2035 b = c->buffer;
|
|
|
2036 size = b->end - b->start;
|
|
|
2037
|
|
|
2038 if (b->pos == NULL) {
|
|
4
|
2039
|
|
|
2040 /*
|
|
|
2041 * The c->buffer's memory was freed by ngx_http_set_keepalive().
|
|
|
2042 * However, the c->buffer->start and c->buffer->end were not changed
|
|
|
2043 * to keep the buffer size.
|
|
|
2044 */
|
|
|
2045
|
|
50
|
2046 b->pos = ngx_palloc(c->pool, size);
|
|
|
2047 if (b->pos == NULL) {
|
|
0
|
2048 ngx_http_close_connection(c);
|
|
|
2049 return;
|
|
|
2050 }
|
|
|
2051
|
|
|
2052 b->start = b->pos;
|
|
|
2053 b->last = b->pos;
|
|
|
2054 b->end = b->pos + size;
|
|
|
2055 }
|
|
|
2056
|
|
|
2057 /*
|
|
|
2058 * MSIE closes a keepalive connection with RST flag
|
|
|
2059 * so we ignore ECONNRESET here.
|
|
|
2060 */
|
|
|
2061
|
|
|
2062 c->log_error = NGX_ERROR_IGNORE_ECONNRESET;
|
|
|
2063 ngx_set_socket_errno(0);
|
|
|
2064
|
|
|
2065 n = c->recv(c, b->last, size);
|
|
|
2066 c->log_error = NGX_ERROR_INFO;
|
|
|
2067
|
|
|
2068 if (n == NGX_AGAIN) {
|
|
58
|
2069 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) {
|
|
24
|
2070 ngx_http_close_connection(c);
|
|
|
2071 }
|
|
|
2072
|
|
0
|
2073 return;
|
|
|
2074 }
|
|
|
2075
|
|
|
2076 if (n == NGX_ERROR) {
|
|
|
2077 ngx_http_close_connection(c);
|
|
|
2078 return;
|
|
|
2079 }
|
|
|
2080
|
|
32
|
2081 c->log->handler = NULL;
|
|
0
|
2082
|
|
|
2083 if (n == 0) {
|
|
|
2084 ngx_log_error(NGX_LOG_INFO, c->log, ngx_socket_errno,
|
|
32
|
2085 "client %V closed keepalive connection", &c->addr_text);
|
|
0
|
2086 ngx_http_close_connection(c);
|
|
|
2087 return;
|
|
|
2088 }
|
|
|
2089
|
|
|
2090 b->last += n;
|
|
32
|
2091
|
|
116
|
2092 #if (NGX_STAT_STUB)
|
|
|
2093 ngx_atomic_fetch_add(ngx_stat_reading, 1);
|
|
|
2094 #endif
|
|
|
2095
|
|
32
|
2096 c->log->handler = ngx_http_log_error;
|
|
|
2097 c->log->action = "reading client request line";
|
|
0
|
2098
|
|
|
2099 ngx_http_init_request(rev);
|
|
|
2100 }
|
|
|
2101
|
|
|
2102
|
|
50
|
2103 static void
|
|
|
2104 ngx_http_set_lingering_close(ngx_http_request_t *r)
|
|
126
|
2105 {
|
|
0
|
2106 ngx_event_t *rev, *wev;
|
|
|
2107 ngx_connection_t *c;
|
|
|
2108 ngx_http_core_loc_conf_t *clcf;
|
|
|
2109
|
|
|
2110 c = r->connection;
|
|
|
2111
|
|
|
2112 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
2113
|
|
|
2114 rev = c->read;
|
|
58
|
2115 rev->handler = ngx_http_lingering_close_handler;
|
|
0
|
2116
|
|
106
|
2117 r->lingering_time = ngx_time() + (time_t) (clcf->lingering_time / 1000);
|
|
0
|
2118 ngx_add_timer(rev, clcf->lingering_timeout);
|
|
|
2119
|
|
58
|
2120 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) {
|
|
0
|
2121 ngx_http_close_request(r, 0);
|
|
|
2122 return;
|
|
|
2123 }
|
|
|
2124
|
|
|
2125 wev = c->write;
|
|
58
|
2126 wev->handler = ngx_http_empty_handler;
|
|
0
|
2127
|
|
132
|
2128 if (wev->active && (ngx_event_flags & NGX_USE_LEVEL_EVENT)) {
|
|
|
2129 if (ngx_del_event(wev, NGX_WRITE_EVENT, 0) == NGX_ERROR) {
|
|
|
2130 ngx_http_close_request(r, 0);
|
|
|
2131 return;
|
|
0
|
2132 }
|
|
|
2133 }
|
|
|
2134
|
|
|
2135 if (ngx_shutdown_socket(c->fd, NGX_WRITE_SHUTDOWN) == -1) {
|
|
|
2136 ngx_connection_error(c, ngx_socket_errno,
|
|
|
2137 ngx_shutdown_socket_n " failed");
|
|
|
2138 ngx_http_close_request(r, 0);
|
|
|
2139 return;
|
|
|
2140 }
|
|
|
2141
|
|
|
2142 if (rev->ready) {
|
|
|
2143 ngx_http_lingering_close_handler(rev);
|
|
|
2144 }
|
|
|
2145 }
|
|
|
2146
|
|
|
2147
|
|
50
|
2148 static void
|
|
|
2149 ngx_http_lingering_close_handler(ngx_event_t *rev)
|
|
0
|
2150 {
|
|
|
2151 ssize_t n;
|
|
|
2152 ngx_msec_t timer;
|
|
|
2153 ngx_connection_t *c;
|
|
|
2154 ngx_http_request_t *r;
|
|
|
2155 ngx_http_core_loc_conf_t *clcf;
|
|
|
2156 u_char buffer[NGX_HTTP_LINGERING_BUFFER_SIZE];
|
|
|
2157
|
|
|
2158 c = rev->data;
|
|
|
2159 r = c->data;
|
|
|
2160
|
|
|
2161 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
|
2162 "http lingering close handler");
|
|
|
2163
|
|
|
2164 if (rev->timedout) {
|
|
126
|
2165 c->timedout = 1;
|
|
0
|
2166 ngx_http_close_request(r, 0);
|
|
|
2167 return;
|
|
|
2168 }
|
|
|
2169
|
|
|
2170 timer = r->lingering_time - ngx_time();
|
|
|
2171 if (timer <= 0) {
|
|
|
2172 ngx_http_close_request(r, 0);
|
|
|
2173 return;
|
|
|
2174 }
|
|
|
2175
|
|
|
2176 do {
|
|
|
2177 n = c->recv(c, buffer, NGX_HTTP_LINGERING_BUFFER_SIZE);
|
|
|
2178
|
|
|
2179 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0, "lingering read: %d", n);
|
|
|
2180
|
|
|
2181 if (n == NGX_ERROR || n == 0) {
|
|
|
2182 ngx_http_close_request(r, 0);
|
|
|
2183 return;
|
|
|
2184 }
|
|
|
2185
|
|
|
2186 } while (rev->ready);
|
|
|
2187
|
|
58
|
2188 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) {
|
|
26
|
2189 ngx_http_close_request(r, 0);
|
|
24
|
2190 return;
|
|
|
2191 }
|
|
|
2192
|
|
0
|
2193 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
2194
|
|
|
2195 timer *= 1000;
|
|
|
2196
|
|
|
2197 if (timer > clcf->lingering_timeout) {
|
|
|
2198 timer = clcf->lingering_timeout;
|
|
|
2199 }
|
|
|
2200
|
|
|
2201 ngx_add_timer(rev, timer);
|
|
|
2202 }
|
|
|
2203
|
|
|
2204
|
|
50
|
2205 void
|
|
|
2206 ngx_http_empty_handler(ngx_event_t *wev)
|
|
0
|
2207 {
|
|
|
2208 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, wev->log, 0, "http empty handler");
|
|
|
2209
|
|
|
2210 return;
|
|
|
2211 }
|
|
|
2212
|
|
|
2213
|
|
58
|
2214 void
|
|
|
2215 ngx_http_request_empty_handler(ngx_http_request_t *r)
|
|
|
2216 {
|
|
|
2217 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
132
|
2218 "http request empty handler");
|
|
58
|
2219
|
|
|
2220 return;
|
|
|
2221 }
|
|
|
2222
|
|
|
2223
|
|
50
|
2224 ngx_int_t
|
|
130
|
2225 ngx_http_send_special(ngx_http_request_t *r, ngx_uint_t flags)
|
|
0
|
2226 {
|
|
|
2227 ngx_buf_t *b;
|
|
|
2228 ngx_chain_t out;
|
|
|
2229
|
|
50
|
2230 b = ngx_calloc_buf(r->pool);
|
|
|
2231 if (b == NULL) {
|
|
0
|
2232 return NGX_ERROR;
|
|
|
2233 }
|
|
|
2234
|
|
130
|
2235 if (flags & NGX_HTTP_LAST) {
|
|
|
2236 b->last_buf = 1;
|
|
|
2237 }
|
|
|
2238
|
|
|
2239 if (flags & NGX_HTTP_FLUSH) {
|
|
|
2240 b->flush = 1;
|
|
|
2241 }
|
|
|
2242
|
|
0
|
2243 out.buf = b;
|
|
|
2244 out.next = NULL;
|
|
|
2245
|
|
|
2246 return ngx_http_output_filter(r, &out);
|
|
|
2247 }
|
|
|
2248
|
|
|
2249
|
|
50
|
2250 void
|
|
58
|
2251 ngx_http_close_request(ngx_http_request_t *r, ngx_int_t error)
|
|
0
|
2252 {
|
|
118
|
2253 ngx_connection_t *c;
|
|
|
2254 ngx_http_cleanup_t *cln;
|
|
|
2255
|
|
|
2256 c = r->connection;
|
|
|
2257 r = r->main;
|
|
|
2258
|
|
|
2259 for (cln = r->cleanup; cln; cln = cln->next) {
|
|
|
2260 if (cln->handler) {
|
|
|
2261 cln->handler(cln->data);
|
|
|
2262 }
|
|
|
2263 }
|
|
|
2264
|
|
|
2265 ngx_http_request_done(r, error);
|
|
|
2266 ngx_http_close_connection(c);
|
|
|
2267 }
|
|
|
2268
|
|
|
2269
|
|
|
2270 void
|
|
|
2271 ngx_http_request_done(ngx_http_request_t *r, ngx_int_t error)
|
|
|
2272 {
|
|
|
2273 ngx_log_t *log;
|
|
130
|
2274 ngx_uint_t i, n;
|
|
118
|
2275 struct linger linger;
|
|
|
2276 ngx_http_log_ctx_t *ctx;
|
|
130
|
2277 ngx_http_handler_pt *log_handler;
|
|
118
|
2278 ngx_http_core_loc_conf_t *clcf;
|
|
|
2279 ngx_http_core_main_conf_t *cmcf;
|
|
0
|
2280
|
|
|
2281 log = r->connection->log;
|
|
|
2282
|
|
|
2283 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, log, 0, "http close request");
|
|
|
2284
|
|
|
2285 if (r->pool == NULL) {
|
|
80
|
2286 ngx_log_error(NGX_LOG_ALERT, log, 0, "http request already closed");
|
|
0
|
2287 return;
|
|
|
2288 }
|
|
|
2289
|
|
|
2290 #if (NGX_STAT_STUB)
|
|
116
|
2291
|
|
0
|
2292 if (r->stat_reading) {
|
|
110
|
2293 ngx_atomic_fetch_add(ngx_stat_reading, -1);
|
|
0
|
2294 }
|
|
|
2295
|
|
|
2296 if (r->stat_writing) {
|
|
110
|
2297 ngx_atomic_fetch_add(ngx_stat_writing, -1);
|
|
0
|
2298 }
|
|
116
|
2299
|
|
0
|
2300 #endif
|
|
|
2301
|
|
|
2302 if (error && r->headers_out.status == 0) {
|
|
|
2303 r->headers_out.status = error;
|
|
|
2304 }
|
|
|
2305
|
|
118
|
2306 cmcf = ngx_http_get_module_main_conf(r, ngx_http_core_module);
|
|
|
2307
|
|
130
|
2308 log_handler = cmcf->phases[NGX_HTTP_LOG_PHASE].handlers.elts;
|
|
|
2309 n = cmcf->phases[NGX_HTTP_LOG_PHASE].handlers.nelts;
|
|
|
2310 for (i = 0; i < n; i++) {
|
|
|
2311 log_handler[i](r);
|
|
118
|
2312 }
|
|
0
|
2313
|
|
|
2314 if (r->connection->timedout) {
|
|
|
2315 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
2316
|
|
|
2317 if (clcf->reset_timedout_connection) {
|
|
58
|
2318 linger.l_onoff = 1;
|
|
|
2319 linger.l_linger = 0;
|
|
0
|
2320
|
|
|
2321 if (setsockopt(r->connection->fd, SOL_SOCKET, SO_LINGER,
|
|
58
|
2322 (const void *) &linger, sizeof(struct linger)) == -1)
|
|
0
|
2323 {
|
|
|
2324 ngx_log_error(NGX_LOG_ALERT, log, ngx_socket_errno,
|
|
|
2325 "setsockopt(SO_LINGER) failed");
|
|
|
2326 }
|
|
|
2327 }
|
|
|
2328 }
|
|
|
2329
|
|
58
|
2330 /* the various request strings were allocated from r->pool */
|
|
0
|
2331 ctx = log->data;
|
|
10
|
2332 ctx->request = NULL;
|
|
0
|
2333
|
|
|
2334 r->request_line.len = 0;
|
|
|
2335
|
|
132
|
2336 r->connection->destroyed = 1;
|
|
|
2337
|
|
0
|
2338 ngx_destroy_pool(r->pool);
|
|
|
2339 }
|
|
|
2340
|
|
|
2341
|
|
80
|
2342 static void
|
|
50
|
2343 ngx_http_close_connection(ngx_connection_t *c)
|
|
0
|
2344 {
|
|
28
|
2345 ngx_pool_t *pool;
|
|
|
2346
|
|
0
|
2347 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
|
2348 "close http connection: %d", c->fd);
|
|
|
2349
|
|
88
|
2350 #if (NGX_HTTP_SSL)
|
|
2
|
2351
|
|
|
2352 if (c->ssl) {
|
|
|
2353 if (ngx_ssl_shutdown(c) == NGX_AGAIN) {
|
|
126
|
2354 c->ssl->handler = ngx_http_close_connection;
|
|
2
|
2355 return;
|
|
|
2356 }
|
|
|
2357 }
|
|
|
2358
|
|
|
2359 #endif
|
|
|
2360
|
|
0
|
2361 #if (NGX_STAT_STUB)
|
|
110
|
2362 ngx_atomic_fetch_add(ngx_stat_active, -1);
|
|
0
|
2363 #endif
|
|
|
2364
|
|
132
|
2365 c->destroyed = 1;
|
|
|
2366
|
|
28
|
2367 pool = c->pool;
|
|
|
2368
|
|
0
|
2369 ngx_close_connection(c);
|
|
28
|
2370
|
|
50
|
2371 ngx_destroy_pool(pool);
|
|
0
|
2372 }
|
|
|
2373
|
|
|
2374
|
|
50
|
2375 static u_char *
|
|
|
2376 ngx_http_log_error(ngx_log_t *log, u_char *buf, size_t len)
|
|
0
|
2377 {
|
|
32
|
2378 u_char *p;
|
|
54
|
2379 ngx_http_request_t *r;
|
|
32
|
2380 ngx_http_log_ctx_t *ctx;
|
|
10
|
2381
|
|
32
|
2382 if (log->action) {
|
|
58
|
2383 p = ngx_snprintf(buf, len, " while %s", log->action);
|
|
10
|
2384 len -= p - buf;
|
|
54
|
2385 buf = p;
|
|
10
|
2386 }
|
|
|
2387
|
|
58
|
2388 ctx = log->data;
|
|
|
2389
|
|
54
|
2390 p = ngx_snprintf(buf, len, ", client: %V", ctx->client);
|
|
58
|
2391 len -= p - buf;
|
|
54
|
2392
|
|
|
2393 r = ctx->request;
|
|
|
2394
|
|
58
|
2395 if (r) {
|
|
|
2396 return r->log_handler(r, p, len);
|
|
0
|
2397 }
|
|
10
|
2398
|
|
58
|
2399 return p;
|
|
|
2400 }
|
|
|
2401
|
|
|
2402
|
|
|
2403 static u_char *
|
|
|
2404 ngx_http_log_error_handler(ngx_http_request_t *r, u_char *buf, size_t len)
|
|
|
2405 {
|
|
|
2406 u_char *p;
|
|
54
|
2407
|
|
|
2408 if (r->server_name.data) {
|
|
|
2409 p = ngx_snprintf(buf, len, ", server: %V", &r->server_name);
|
|
52
|
2410 len -= p - buf;
|
|
54
|
2411 buf = p;
|
|
52
|
2412 }
|
|
|
2413
|
|
54
|
2414 if (r->unparsed_uri.data) {
|
|
|
2415 p = ngx_snprintf(buf, len, ", URL: \"%V\"", &r->unparsed_uri);
|
|
|
2416 len -= p - buf;
|
|
|
2417 buf = p;
|
|
|
2418
|
|
|
2419 } else {
|
|
|
2420 if (r->request_line.data == NULL && r->request_start) {
|
|
|
2421 for (p = r->request_start; p < r->header_in->last; p++) {
|
|
|
2422 if (*p == CR || *p == LF) {
|
|
|
2423 break;
|
|
|
2424 }
|
|
|
2425 }
|
|
|
2426
|
|
|
2427 r->request_line.len = p - r->request_start;
|
|
|
2428 r->request_line.data = r->request_start;
|
|
|
2429 }
|
|
|
2430
|
|
|
2431 if (r->request_line.len) {
|
|
|
2432 p = ngx_snprintf(buf, len, ", request: \"%V\"", &r->request_line);
|
|
|
2433 len -= p - buf;
|
|
|
2434 buf = p;
|
|
|
2435 }
|
|
10
|
2436 }
|
|
|
2437
|
|
54
|
2438 return ngx_http_log_error_info(r, buf, len);
|
|
0
|
2439 }
|
|
54
|
2440
|
|
|
2441
|
|
|
2442 u_char *
|
|
|
2443 ngx_http_log_error_info(ngx_http_request_t *r, u_char *buf, size_t len)
|
|
|
2444 {
|
|
|
2445 u_char *p;
|
|
|
2446
|
|
|
2447 if (r->headers_in.host) {
|
|
|
2448 p = ngx_snprintf(buf, len, ", host: \"%V\"",
|
|
|
2449 &r->headers_in.host->value);
|
|
|
2450 len -= p - buf;
|
|
|
2451 buf = p;
|
|
|
2452 }
|
|
|
2453
|
|
|
2454 if (r->headers_in.referer) {
|
|
|
2455 p = ngx_snprintf(buf, len, ", referrer: \"%V\"",
|
|
|
2456 &r->headers_in.referer->value);
|
|
|
2457 buf = p;
|
|
|
2458 }
|
|
|
2459
|
|
|
2460 return buf;
|
|
|
2461 }
|
