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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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162
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28 static void 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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0
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35 static void ngx_http_set_keepalive(ngx_http_request_t *r);
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36 static void ngx_http_keepalive_handler(ngx_event_t *ev);
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37 static void ngx_http_set_lingering_close(ngx_http_request_t *r);
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38 static void ngx_http_lingering_close_handler(ngx_event_t *ev);
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162
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39 static ngx_int_t ngx_http_post_action(ngx_http_request_t *r);
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80
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40 static void ngx_http_close_request(ngx_http_request_t *r, ngx_int_t error);
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118
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41 static void ngx_http_request_done(ngx_http_request_t *r, ngx_int_t error);
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80
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42 static void ngx_http_close_connection(ngx_connection_t *c);
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0
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43
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32
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44 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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45 static u_char *ngx_http_log_error_handler(ngx_http_request_t *r, u_char *buf,
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46 size_t len);
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0
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47
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88
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48 #if (NGX_HTTP_SSL)
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49 static void ngx_http_ssl_handshake(ngx_event_t *rev);
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96
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50 static void ngx_http_ssl_handshake_handler(ngx_connection_t *c);
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88
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51 #endif
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52
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0
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53
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54
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54 static char *ngx_http_client_errors[] = {
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55
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56 /* NGX_HTTP_PARSE_INVALID_METHOD */
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57 "client sent invalid method",
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58
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59 /* NGX_HTTP_PARSE_INVALID_REQUEST */
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60 "client sent invalid request",
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61
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62 /* NGX_HTTP_PARSE_INVALID_09_METHOD */
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63 "client sent invalid method in HTTP/0.9 request"
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0
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64 };
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65
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66
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67 ngx_http_header_t ngx_http_headers_in[] = {
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58
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68 { ngx_string("Host"), offsetof(ngx_http_headers_in_t, host),
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72
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69 ngx_http_process_unique_header_line },
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58
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70
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71 { ngx_string("Connection"), offsetof(ngx_http_headers_in_t, connection),
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72
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72 ngx_http_process_unique_header_line },
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58
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73
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0
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74 { ngx_string("If-Modified-Since"),
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58
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75 offsetof(ngx_http_headers_in_t, if_modified_since),
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76 ngx_http_process_header_line },
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77
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78 { ngx_string("User-Agent"), offsetof(ngx_http_headers_in_t, user_agent),
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79 ngx_http_process_header_line },
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80
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81 { ngx_string("Referer"), offsetof(ngx_http_headers_in_t, referer),
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82 ngx_http_process_header_line },
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83
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0
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84 { ngx_string("Content-Length"),
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58
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85 offsetof(ngx_http_headers_in_t, content_length),
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72
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86 ngx_http_process_unique_header_line },
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58
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87
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28
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88 { ngx_string("Content-Type"),
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58
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89 offsetof(ngx_http_headers_in_t, content_type),
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90 ngx_http_process_header_line },
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91
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92 { ngx_string("Range"), offsetof(ngx_http_headers_in_t, range),
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93 ngx_http_process_header_line },
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94
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130
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95 { ngx_string("Transfer-Encoding"),
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96 offsetof(ngx_http_headers_in_t, transfer_encoding),
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97 ngx_http_process_header_line },
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98
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0
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99 #if (NGX_HTTP_GZIP)
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100 { ngx_string("Accept-Encoding"),
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58
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101 offsetof(ngx_http_headers_in_t, accept_encoding),
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102 ngx_http_process_header_line },
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103
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104 { ngx_string("Via"), offsetof(ngx_http_headers_in_t, via),
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105 ngx_http_process_header_line },
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0
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106 #endif
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107
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108 { ngx_string("Authorization"),
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58
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109 offsetof(ngx_http_headers_in_t, authorization),
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72
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110 ngx_http_process_unique_header_line },
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58
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111
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112 { ngx_string("Keep-Alive"), offsetof(ngx_http_headers_in_t, keep_alive),
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113 ngx_http_process_header_line },
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0
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114
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122
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115 #if (NGX_HTTP_PROXY || NGX_HTTP_REALIP)
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0
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116 { ngx_string("X-Forwarded-For"),
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58
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117 offsetof(ngx_http_headers_in_t, x_forwarded_for),
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118 ngx_http_process_header_line },
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0
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119 #endif
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28
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120
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122
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121 #if (NGX_HTTP_REALIP)
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122 { ngx_string("X-Real-IP"),
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123 offsetof(ngx_http_headers_in_t, x_real_ip),
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124 ngx_http_process_header_line },
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125 #endif
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126
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38
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127 #if (NGX_HTTP_HEADERS)
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58
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128 { ngx_string("Accept"), offsetof(ngx_http_headers_in_t, accept),
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129 ngx_http_process_header_line },
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130
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38
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131 { ngx_string("Accept-Language"),
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58
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132 offsetof(ngx_http_headers_in_t, accept_language),
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133 ngx_http_process_header_line },
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38
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134 #endif
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135
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186
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136 #if (NGX_HTTP_DAV)
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137 { ngx_string("Depth"), offsetof(ngx_http_headers_in_t, depth),
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138 ngx_http_process_header_line },
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139
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140 { ngx_string("Destination"), offsetof(ngx_http_headers_in_t, destination),
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141 ngx_http_process_header_line },
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142 #endif
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143
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58
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144 { ngx_string("Cookie"), 0, ngx_http_process_cookie },
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145
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146 { ngx_null_string, 0, NULL }
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0
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147 };
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148
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149
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50
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150 void
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151 ngx_http_init_connection(ngx_connection_t *c)
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0
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152 {
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153 ngx_event_t *rev;
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154 ngx_http_log_ctx_t *ctx;
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155
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50
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156 ctx = ngx_palloc(c->pool, sizeof(ngx_http_log_ctx_t));
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157 if (ctx == NULL) {
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0
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158 ngx_http_close_connection(c);
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159 return;
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160 }
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161
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10
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162 ctx->client = &c->addr_text;
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163 ctx->request = NULL;
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32
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164
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165 c->log->connection = c->number;
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166 c->log->handler = ngx_http_log_error;
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0
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167 c->log->data = ctx;
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32
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168 c->log->action = "reading client request line";
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169
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0
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170 c->log_error = NGX_ERROR_INFO;
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171
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172 rev = c->read;
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58
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173 rev->handler = ngx_http_init_request;
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118
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174 c->write->handler = ngx_http_empty_handler;
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0
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175
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116
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176 #if (NGX_STAT_STUB)
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177 ngx_atomic_fetch_add(ngx_stat_reading, 1);
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178 #endif
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179
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0
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180 if (rev->ready) {
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181 /* the deferred accept(), rtsig, aio, iocp */
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182
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160
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183 if (ngx_use_accept_mutex) {
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112
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184 ngx_post_event(rev, &ngx_posted_events);
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0
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185 return;
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186 }
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187
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188 ngx_http_init_request(rev);
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189 return;
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190 }
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191
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192 ngx_add_timer(rev, c->listening->post_accept_timeout);
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193
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194 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) {
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116
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195 #if (NGX_STAT_STUB)
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196 ngx_atomic_fetch_add(ngx_stat_reading, -1);
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197 #endif
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0
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198 ngx_http_close_connection(c);
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199 return;
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200 }
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201 }
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202
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203
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190
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204 static void
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205 ngx_http_init_request(ngx_event_t *rev)
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0
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206 {
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190
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207 socklen_t len;
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122
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208 ngx_uint_t i;
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209 struct sockaddr_in sin;
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210 ngx_connection_t *c;
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211 ngx_http_request_t *r;
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142
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212 ngx_http_in_port_t *hip;
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213 ngx_http_in_addr_t *hia;
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122
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214 ngx_http_log_ctx_t *ctx;
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215 ngx_http_connection_t *hc;
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216 ngx_http_core_srv_conf_t *cscf;
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217 ngx_http_core_loc_conf_t *clcf;
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218 ngx_http_core_main_conf_t *cmcf;
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0
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219 #if (NGX_HTTP_SSL)
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122
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220 ngx_http_ssl_srv_conf_t *sscf;
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0
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221 #endif
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222
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116
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223 #if (NGX_STAT_STUB)
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224 ngx_atomic_fetch_add(ngx_stat_reading, -1);
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225 #endif
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226
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0
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227 c = rev->data;
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228
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229 if (rev->timedout) {
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230 ngx_log_error(NGX_LOG_INFO, c->log, NGX_ETIMEDOUT, "client timed out");
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231
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232 ngx_http_close_connection(c);
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233 return;
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234 }
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235
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236 hc = c->data;
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237
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116
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238 if (hc == NULL) {
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50
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239 hc = ngx_pcalloc(c->pool, sizeof(ngx_http_connection_t));
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240 if (hc == NULL) {
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0
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241 ngx_http_close_connection(c);
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242 return;
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243 }
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244 }
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245
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246 r = hc->request;
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247
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248 if (r) {
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249 ngx_memzero(r, sizeof(ngx_http_request_t));
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250
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251 r->pipeline = hc->pipeline;
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252
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253 if (hc->nbusy) {
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254 r->header_in = hc->busy[0];
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255 }
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256
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257 } else {
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50
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258 r = ngx_pcalloc(c->pool, sizeof(ngx_http_request_t));
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259 if (r == NULL) {
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0
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260 ngx_http_close_connection(c);
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261 return;
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262 }
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263
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264 hc->request = r;
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265 }
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266
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267 c->data = r;
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268 r->http_connection = hc;
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269
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270 c->sent = 0;
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271 r->signature = NGX_HTTP_MODULE;
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272
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273 /* find the server configuration for the address:port */
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274
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275 /* AF_INET only */
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276
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190
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277 hip = c->listening->servers;
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142
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278 hia = hip->addrs;
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279
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280 r->port = hip->port;
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281 r->port_text = &hip->port_text;
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0
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282
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283 i = 0;
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284
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142
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285 if (hip->naddrs > 1) {
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0
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286
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287 /*
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288 * There are several addresses on this port and one of them
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289 * is the "*:port" wildcard so getsockname() is needed to determine
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290 * the server address.
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291 *
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292 * AcceptEx() already gave this address.
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293 */
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294
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10
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295 #if (NGX_WIN32)
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0
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296 if (c->local_sockaddr) {
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297 r->in_addr =
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298 ((struct sockaddr_in *) c->local_sockaddr)->sin_addr.s_addr;
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299
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28
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300 } else
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0
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301 #endif
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28
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302 {
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0
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303 len = sizeof(struct sockaddr_in);
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28
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304 if (getsockname(c->fd, (struct sockaddr *) &sin, &len) == -1) {
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0
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305 ngx_connection_error(c, ngx_socket_errno,
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306 "getsockname() failed");
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307 ngx_http_close_connection(c);
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308 return;
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309 }
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310
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28
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311 r->in_addr = sin.sin_addr.s_addr;
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0
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312 }
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313
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190
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314 /* the last address is "*" */
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0
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315
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142
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316 for ( /* void */ ; i < hip->naddrs - 1; i++) {
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317 if (hia[i].addr == r->in_addr) {
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0
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318 break;
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319 }
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320 }
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321
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322 } else {
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142
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323 r->in_addr = hia[0].addr;
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0
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324 }
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325
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142
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326 r->virtual_names = hia[i].virtual_names;
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0
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327
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328 /* the default server configuration for the address:port */
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142
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329 cscf = hia[i].core_srv_conf;
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0
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330
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331 r->main_conf = cscf->ctx->main_conf;
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332 r->srv_conf = cscf->ctx->srv_conf;
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333 r->loc_conf = cscf->ctx->loc_conf;
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334
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142
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335 r->server_name = cscf->server_name;
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336
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58
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337 rev->handler = ngx_http_process_request_line;
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0
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338
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339 #if (NGX_HTTP_SSL)
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340
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341 sscf = ngx_http_get_module_srv_conf(r, ngx_http_ssl_module);
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342 if (sscf->enable) {
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343
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344 if (c->ssl == NULL) {
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96
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345 if (ngx_ssl_create_connection(&sscf->ssl, c, NGX_SSL_BUFFER)
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56
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346 == NGX_ERROR)
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0
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347 {
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348 ngx_http_close_connection(c);
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349 return;
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350 }
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351
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58
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352 rev->handler = ngx_http_ssl_handshake;
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0
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353 }
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354
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62
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355 r->main_filter_need_in_memory = 1;
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0
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356 }
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357
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358 #endif
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359
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360 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
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361 c->log->file = clcf->err_log->file;
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362 if (!(c->log->log_level & NGX_LOG_DEBUG_CONNECTION)) {
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363 c->log->log_level = clcf->err_log->log_level;
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364 }
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365
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366 if (c->buffer == NULL) {
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367 c->buffer = ngx_create_temp_buf(c->pool,
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368 cscf->client_header_buffer_size);
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369 if (c->buffer == NULL) {
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370 ngx_http_close_connection(c);
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|
|
371 return;
|
|
|
372 }
|
|
|
373 }
|
|
|
374
|
|
|
375 if (r->header_in == NULL) {
|
|
|
376 r->header_in = c->buffer;
|
|
|
377 }
|
|
|
378
|
|
50
|
379 r->pool = ngx_create_pool(cscf->request_pool_size, c->log);
|
|
|
380 if (r->pool == NULL) {
|
|
0
|
381 ngx_http_close_connection(c);
|
|
|
382 return;
|
|
|
383 }
|
|
|
384
|
|
|
385
|
|
|
386 if (ngx_list_init(&r->headers_out.headers, r->pool, 20,
|
|
130
|
387 sizeof(ngx_table_elt_t))
|
|
|
388 == NGX_ERROR)
|
|
0
|
389 {
|
|
|
390 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
391 return;
|
|
|
392 }
|
|
|
393
|
|
|
394 r->ctx = ngx_pcalloc(r->pool, sizeof(void *) * ngx_http_max_module);
|
|
|
395 if (r->ctx == NULL) {
|
|
|
396 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
397 return;
|
|
|
398 }
|
|
|
399
|
|
122
|
400 cmcf = ngx_http_get_module_main_conf(r, ngx_http_core_module);
|
|
|
401
|
|
|
402 r->variables = ngx_pcalloc(r->pool, cmcf->variables.nelts
|
|
|
403 * sizeof(ngx_http_variable_value_t));
|
|
|
404 if (r->variables == NULL) {
|
|
|
405 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
406 return;
|
|
|
407 }
|
|
|
408
|
|
0
|
409 c->single_connection = 1;
|
|
132
|
410 c->destroyed = 0;
|
|
|
411
|
|
0
|
412 r->connection = c;
|
|
|
413
|
|
102
|
414 r->main = r;
|
|
|
415
|
|
46
|
416 r->start_time = ngx_time();
|
|
|
417
|
|
180
|
418 r->method = NGX_HTTP_UNKNOWN;
|
|
|
419
|
|
0
|
420 r->headers_in.content_length_n = -1;
|
|
|
421 r->headers_in.keep_alive_n = -1;
|
|
|
422 r->headers_out.content_length_n = -1;
|
|
|
423 r->headers_out.last_modified_time = -1;
|
|
|
424
|
|
|
425 r->http_state = NGX_HTTP_READING_REQUEST_STATE;
|
|
|
426
|
|
54
|
427 ctx = c->log->data;
|
|
|
428 ctx->request = r;
|
|
58
|
429 r->log_handler = ngx_http_log_error_handler;
|
|
54
|
430
|
|
0
|
431 #if (NGX_STAT_STUB)
|
|
110
|
432 ngx_atomic_fetch_add(ngx_stat_reading, 1);
|
|
26
|
433 r->stat_reading = 1;
|
|
110
|
434 ngx_atomic_fetch_add(ngx_stat_requests, 1);
|
|
0
|
435 #endif
|
|
|
436
|
|
58
|
437 rev->handler(rev);
|
|
0
|
438 }
|
|
|
439
|
|
|
440
|
|
|
441 #if (NGX_HTTP_SSL)
|
|
|
442
|
|
50
|
443 static void
|
|
|
444 ngx_http_ssl_handshake(ngx_event_t *rev)
|
|
0
|
445 {
|
|
10
|
446 u_char buf[1];
|
|
|
447 ssize_t n;
|
|
0
|
448 ngx_int_t rc;
|
|
|
449 ngx_connection_t *c;
|
|
|
450 ngx_http_request_t *r;
|
|
|
451
|
|
|
452 c = rev->data;
|
|
|
453 r = c->data;
|
|
|
454
|
|
|
455 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, rev->log, 0,
|
|
|
456 "http check ssl handshake");
|
|
|
457
|
|
|
458 if (rev->timedout) {
|
|
54
|
459 ngx_log_error(NGX_LOG_INFO, c->log, NGX_ETIMEDOUT, "client timed out");
|
|
|
460 c->timedout = 1;
|
|
|
461 ngx_http_close_request(r, NGX_HTTP_REQUEST_TIME_OUT);
|
|
0
|
462 return;
|
|
|
463 }
|
|
|
464
|
|
132
|
465 n = recv(c->fd, (char *) buf, 1, MSG_PEEK);
|
|
0
|
466
|
|
|
467 if (n == -1 && ngx_socket_errno == NGX_EAGAIN) {
|
|
|
468 return;
|
|
|
469 }
|
|
|
470
|
|
|
471 if (n == 1) {
|
|
|
472 if (buf[0] == 0x80 /* SSLv2 */ || buf[0] == 0x16 /* SSLv3/TLSv1 */) {
|
|
|
473 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, rev->log, 0,
|
|
10
|
474 "https ssl handshake: 0x%02Xd", buf[0]);
|
|
0
|
475
|
|
|
476 rc = ngx_ssl_handshake(c);
|
|
|
477
|
|
96
|
478 if (rc == NGX_AGAIN) {
|
|
|
479 c->ssl->handler = ngx_http_ssl_handshake_handler;
|
|
0
|
480 return;
|
|
|
481 }
|
|
|
482
|
|
96
|
483 ngx_http_ssl_handshake_handler(c);
|
|
|
484
|
|
|
485 return;
|
|
0
|
486
|
|
|
487 } else {
|
|
|
488 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, rev->log, 0,
|
|
|
489 "plain http");
|
|
|
490
|
|
|
491 r->plain_http = 1;
|
|
|
492 }
|
|
|
493 }
|
|
|
494
|
|
58
|
495 rev->handler = ngx_http_process_request_line;
|
|
0
|
496 ngx_http_process_request_line(rev);
|
|
|
497 }
|
|
|
498
|
|
96
|
499
|
|
|
500 static void
|
|
|
501 ngx_http_ssl_handshake_handler(ngx_connection_t *c)
|
|
|
502 {
|
|
|
503 ngx_http_request_t *r;
|
|
|
504
|
|
|
505 if (c->ssl->handshaked) {
|
|
|
506
|
|
|
507 /*
|
|
|
508 * The majority of browsers do not send the "close notify" alert.
|
|
|
509 * Among them are MSIE, old Mozilla, Netscape 4, Konqueror,
|
|
|
510 * and Links. And what is more, MSIE ignores the server's alert.
|
|
|
511 *
|
|
|
512 * Opera and recent Mozilla send the alert.
|
|
|
513 */
|
|
|
514
|
|
|
515 c->ssl->no_wait_shutdown = 1;
|
|
|
516
|
|
|
517 c->read->handler = ngx_http_process_request_line;
|
|
|
518 /* STUB: epoll edge */ c->write->handler = ngx_http_empty_handler;
|
|
|
519
|
|
|
520 ngx_http_process_request_line(c->read);
|
|
|
521
|
|
|
522 return;
|
|
|
523 }
|
|
|
524
|
|
|
525 r = c->data;
|
|
|
526
|
|
|
527 ngx_http_close_request(r, NGX_HTTP_BAD_REQUEST);
|
|
|
528
|
|
|
529 return;
|
|
|
530 }
|
|
|
531
|
|
|
532
|
|
0
|
533 #endif
|
|
|
534
|
|
|
535
|
|
50
|
536 static void
|
|
|
537 ngx_http_process_request_line(ngx_event_t *rev)
|
|
0
|
538 {
|
|
|
539 ssize_t n;
|
|
|
540 ngx_int_t rc, rv;
|
|
|
541 ngx_connection_t *c;
|
|
|
542 ngx_http_request_t *r;
|
|
|
543 ngx_http_log_ctx_t *ctx;
|
|
|
544
|
|
|
545 c = rev->data;
|
|
|
546 r = c->data;
|
|
|
547
|
|
|
548 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, rev->log, 0,
|
|
|
549 "http process request line");
|
|
|
550
|
|
|
551 if (rev->timedout) {
|
|
54
|
552 ngx_log_error(NGX_LOG_INFO, c->log, NGX_ETIMEDOUT, "client timed out");
|
|
|
553 c->timedout = 1;
|
|
|
554 ngx_http_close_request(r, NGX_HTTP_REQUEST_TIME_OUT);
|
|
0
|
555 return;
|
|
|
556 }
|
|
|
557
|
|
|
558 rc = NGX_AGAIN;
|
|
|
559
|
|
|
560 for ( ;; ) {
|
|
|
561
|
|
|
562 if (rc == NGX_AGAIN) {
|
|
|
563 n = ngx_http_read_request_header(r);
|
|
|
564
|
|
|
565 if (n == NGX_AGAIN || n == NGX_ERROR) {
|
|
|
566 return;
|
|
|
567 }
|
|
|
568 }
|
|
|
569
|
|
|
570 rc = ngx_http_parse_request_line(r, r->header_in);
|
|
|
571
|
|
|
572 if (rc == NGX_OK) {
|
|
|
573
|
|
|
574 /* the request line has been parsed successfully */
|
|
|
575
|
|
10
|
576 r->request_line.len = r->request_end - r->request_start;
|
|
|
577 r->request_line.data = r->request_start;
|
|
|
578
|
|
0
|
579
|
|
|
580 if (r->args_start) {
|
|
|
581 r->uri.len = r->args_start - 1 - r->uri_start;
|
|
|
582 } else {
|
|
|
583 r->uri.len = r->uri_end - r->uri_start;
|
|
|
584 }
|
|
|
585
|
|
18
|
586
|
|
2
|
587 if (r->complex_uri || r->quoted_uri) {
|
|
10
|
588
|
|
50
|
589 r->uri.data = ngx_palloc(r->pool, r->uri.len + 1);
|
|
|
590 if (r->uri.data == NULL) {
|
|
10
|
591 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
592 return;
|
|
|
593 }
|
|
|
594
|
|
0
|
595 rc = ngx_http_parse_complex_uri(r);
|
|
|
596
|
|
54
|
597 if (rc == NGX_HTTP_PARSE_INVALID_REQUEST) {
|
|
|
598 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
|
599 "client sent invalid request");
|
|
|
600 ngx_http_finalize_request(r, NGX_HTTP_BAD_REQUEST);
|
|
0
|
601 return;
|
|
|
602 }
|
|
|
603
|
|
|
604 } else {
|
|
10
|
605 r->uri.data = r->uri_start;
|
|
0
|
606 }
|
|
|
607
|
|
18
|
608
|
|
10
|
609 r->unparsed_uri.len = r->uri_end - r->uri_start;
|
|
|
610 r->unparsed_uri.data = r->uri_start;
|
|
|
611
|
|
0
|
612
|
|
58
|
613 r->method_name.len = r->method_end - r->request_start + 1;
|
|
|
614 r->method_name.data = r->request_line.data;
|
|
0
|
615
|
|
10
|
616
|
|
28
|
617 if (r->http_protocol.data) {
|
|
|
618 r->http_protocol.len = r->request_end - r->http_protocol.data;
|
|
|
619 }
|
|
|
620
|
|
|
621
|
|
0
|
622 if (r->uri_ext) {
|
|
|
623 if (r->args_start) {
|
|
|
624 r->exten.len = r->args_start - 1 - r->uri_ext;
|
|
|
625 } else {
|
|
|
626 r->exten.len = r->uri_end - r->uri_ext;
|
|
|
627 }
|
|
|
628
|
|
10
|
629 r->exten.data = r->uri_ext;
|
|
0
|
630 }
|
|
|
631
|
|
10
|
632
|
|
0
|
633 if (r->args_start && r->uri_end > r->args_start) {
|
|
|
634 r->args.len = r->uri_end - r->args_start;
|
|
10
|
635 r->args.data = r->args_start;
|
|
0
|
636 }
|
|
|
637
|
|
10
|
638
|
|
|
639 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
|
640 "http request line: \"%V\"", &r->request_line);
|
|
|
641
|
|
0
|
642 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
10
|
643 "http uri: \"%V\"", &r->uri);
|
|
0
|
644
|
|
|
645 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
10
|
646 "http args: \"%V\"", &r->args);
|
|
0
|
647
|
|
|
648 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
10
|
649 "http exten: \"%V\"", &r->exten);
|
|
|
650
|
|
0
|
651 if (r->http_version < NGX_HTTP_VERSION_10) {
|
|
86
|
652
|
|
|
653 if (rev->timer_set) {
|
|
|
654 ngx_del_timer(rev);
|
|
|
655 }
|
|
|
656
|
|
|
657 #if (NGX_STAT_STUB)
|
|
110
|
658 ngx_atomic_fetch_add(ngx_stat_reading, -1);
|
|
86
|
659 r->stat_reading = 0;
|
|
110
|
660 ngx_atomic_fetch_add(ngx_stat_writing, 1);
|
|
86
|
661 r->stat_writing = 1;
|
|
|
662 #endif
|
|
|
663
|
|
|
664 rev->handler = ngx_http_request_handler;
|
|
|
665 c->write->handler = ngx_http_request_handler;
|
|
58
|
666 r->read_event_handler = ngx_http_block_read;
|
|
86
|
667
|
|
0
|
668 ngx_http_handler(r);
|
|
86
|
669
|
|
0
|
670 return;
|
|
|
671 }
|
|
|
672
|
|
|
673
|
|
|
674 if (ngx_list_init(&r->headers_in.headers, r->pool, 20,
|
|
130
|
675 sizeof(ngx_table_elt_t))
|
|
|
676 == NGX_ERROR)
|
|
0
|
677 {
|
|
|
678 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
679 return;
|
|
|
680 }
|
|
|
681
|
|
|
682
|
|
48
|
683 if (ngx_array_init(&r->headers_in.cookies, r->pool, 2,
|
|
130
|
684 sizeof(ngx_table_elt_t *))
|
|
|
685 == NGX_ERROR)
|
|
0
|
686 {
|
|
|
687 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
688 return;
|
|
|
689 }
|
|
|
690
|
|
32
|
691 c->log->action = "reading client request headers";
|
|
0
|
692
|
|
58
|
693 rev->handler = ngx_http_process_request_headers;
|
|
0
|
694 ngx_http_process_request_headers(rev);
|
|
|
695
|
|
|
696 return;
|
|
54
|
697 }
|
|
|
698
|
|
|
699 if (rc != NGX_AGAIN) {
|
|
0
|
700
|
|
|
701 /* there was error while a request line parsing */
|
|
|
702
|
|
54
|
703 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
|
704 ngx_http_client_errors[rc - NGX_HTTP_CLIENT_ERROR]);
|
|
|
705 ngx_http_finalize_request(r, NGX_HTTP_BAD_REQUEST);
|
|
0
|
706 return;
|
|
|
707 }
|
|
|
708
|
|
|
709 /* NGX_AGAIN: a request line parsing is still incomplete */
|
|
|
710
|
|
|
711 if (r->header_in->pos == r->header_in->end) {
|
|
|
712
|
|
|
713 rv = ngx_http_alloc_large_header_buffer(r, 1);
|
|
|
714
|
|
|
715 if (rv == NGX_ERROR) {
|
|
|
716 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
717 return;
|
|
|
718 }
|
|
|
719
|
|
|
720 if (rv == NGX_DECLINED) {
|
|
54
|
721 ctx = c->log->data;
|
|
|
722 ctx->request = r;
|
|
|
723
|
|
|
724 r->request_line.len = r->header_in->end - r->request_start;
|
|
|
725 r->request_line.data = r->request_start;
|
|
|
726
|
|
|
727 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
|
728 "client sent too long URI");
|
|
|
729 ngx_http_finalize_request(r, NGX_HTTP_REQUEST_URI_TOO_LARGE);
|
|
0
|
730 return;
|
|
|
731 }
|
|
|
732 }
|
|
|
733 }
|
|
|
734 }
|
|
|
735
|
|
|
736
|
|
50
|
737 static void
|
|
|
738 ngx_http_process_request_headers(ngx_event_t *rev)
|
|
0
|
739 {
|
|
56
|
740 ssize_t n;
|
|
|
741 ngx_int_t rc, rv;
|
|
|
742 ngx_uint_t key;
|
|
|
743 ngx_str_t header;
|
|
58
|
744 ngx_table_elt_t *h;
|
|
56
|
745 ngx_connection_t *c;
|
|
|
746 ngx_http_header_t *hh;
|
|
|
747 ngx_http_request_t *r;
|
|
60
|
748 ngx_http_core_srv_conf_t *cscf;
|
|
56
|
749 ngx_http_core_main_conf_t *cmcf;
|
|
0
|
750
|
|
|
751 c = rev->data;
|
|
|
752 r = c->data;
|
|
|
753
|
|
|
754 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, rev->log, 0,
|
|
|
755 "http process request header line");
|
|
|
756
|
|
|
757 if (rev->timedout) {
|
|
54
|
758 ngx_log_error(NGX_LOG_INFO, c->log, NGX_ETIMEDOUT, "client timed out");
|
|
|
759 c->timedout = 1;
|
|
|
760 ngx_http_close_request(r, NGX_HTTP_REQUEST_TIME_OUT);
|
|
0
|
761 return;
|
|
|
762 }
|
|
|
763
|
|
56
|
764 cmcf = ngx_http_get_module_main_conf(r, ngx_http_core_module);
|
|
60
|
765 cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
|
|
56
|
766 hh = (ngx_http_header_t *) cmcf->headers_in_hash.buckets;
|
|
|
767
|
|
0
|
768 rc = NGX_AGAIN;
|
|
|
769
|
|
|
770 for ( ;; ) {
|
|
|
771
|
|
|
772 if (rc == NGX_AGAIN) {
|
|
|
773
|
|
|
774 if (r->header_in->pos == r->header_in->end) {
|
|
|
775
|
|
|
776 rv = ngx_http_alloc_large_header_buffer(r, 0);
|
|
|
777
|
|
|
778 if (rv == NGX_ERROR) {
|
|
|
779 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
780 return;
|
|
|
781 }
|
|
|
782
|
|
|
783 if (rv == NGX_DECLINED) {
|
|
54
|
784 header.len = r->header_in->end - r->header_name_start;
|
|
|
785 header.data = r->header_name_start;
|
|
80
|
786
|
|
|
787 if (header.len > NGX_MAX_ERROR_STR - 300) {
|
|
|
788 header.len = NGX_MAX_ERROR_STR - 300;
|
|
|
789 header.data[header.len++] = '.';
|
|
|
790 header.data[header.len++] = '.';
|
|
|
791 header.data[header.len++] = '.';
|
|
|
792 }
|
|
|
793
|
|
54
|
794 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
|
795 "client sent too long header line: \"%V\"",
|
|
|
796 &header);
|
|
|
797 ngx_http_close_request(r, NGX_HTTP_BAD_REQUEST);
|
|
0
|
798 return;
|
|
|
799 }
|
|
|
800 }
|
|
|
801
|
|
|
802 n = ngx_http_read_request_header(r);
|
|
|
803
|
|
|
804 if (n == NGX_AGAIN || n == NGX_ERROR) {
|
|
|
805 return;
|
|
|
806 }
|
|
|
807 }
|
|
|
808
|
|
|
809 rc = ngx_http_parse_header_line(r, r->header_in);
|
|
|
810
|
|
|
811 if (rc == NGX_OK) {
|
|
|
812
|
|
60
|
813 if (r->invalid_header && cscf->ignore_invalid_headers) {
|
|
52
|
814
|
|
|
815 /* there was error while a header line parsing */
|
|
|
816
|
|
|
817 header.len = r->header_end - r->header_name_start;
|
|
|
818 header.data = r->header_name_start;
|
|
|
819
|
|
54
|
820 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
|
821 "client sent invalid header line: \"%V\"",
|
|
52
|
822 &header);
|
|
|
823 continue;
|
|
|
824 }
|
|
|
825
|
|
0
|
826 /* a header line has been parsed successfully */
|
|
|
827
|
|
50
|
828 h = ngx_list_push(&r->headers_in.headers);
|
|
|
829 if (h == NULL) {
|
|
0
|
830 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
831 return;
|
|
|
832 }
|
|
|
833
|
|
56
|
834 h->hash = r->header_hash;
|
|
|
835
|
|
0
|
836 h->key.len = r->header_name_end - r->header_name_start;
|
|
|
837 h->key.data = r->header_name_start;
|
|
|
838 h->key.data[h->key.len] = '\0';
|
|
|
839
|
|
|
840 h->value.len = r->header_end - r->header_start;
|
|
|
841 h->value.data = r->header_start;
|
|
|
842 h->value.data[h->value.len] = '\0';
|
|
|
843
|
|
58
|
844 key = h->hash % cmcf->headers_in_hash.hash_size;
|
|
|
845
|
|
|
846 if (hh[key].name.len == h->key.len
|
|
|
847 && ngx_strcasecmp(hh[key].name.data, h->key.data) == 0)
|
|
0
|
848 {
|
|
58
|
849 if (hh[key].handler(r, h, hh[key].offset) != NGX_OK) {
|
|
0
|
850 return;
|
|
|
851 }
|
|
|
852 }
|
|
|
853
|
|
|
854 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
10
|
855 "http header: \"%V: %V\"",
|
|
|
856 &h->key, &h->value);
|
|
0
|
857
|
|
|
858 continue;
|
|
54
|
859 }
|
|
|
860
|
|
|
861 if (rc == NGX_HTTP_PARSE_HEADER_DONE) {
|
|
0
|
862
|
|
|
863 /* a whole header has been parsed successfully */
|
|
|
864
|
|
|
865 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
866 "http header done");
|
|
|
867
|
|
24
|
868 r->request_length += r->header_in->pos - r->header_in->start;
|
|
|
869
|
|
0
|
870 r->http_state = NGX_HTTP_PROCESS_REQUEST_STATE;
|
|
|
871
|
|
|
872 rc = ngx_http_process_request_header(r);
|
|
|
873
|
|
|
874 if (rc != NGX_OK) {
|
|
|
875 return;
|
|
|
876 }
|
|
|
877
|
|
|
878 if (rev->timer_set) {
|
|
|
879 ngx_del_timer(rev);
|
|
|
880 }
|
|
|
881
|
|
|
882 #if (NGX_STAT_STUB)
|
|
110
|
883 ngx_atomic_fetch_add(ngx_stat_reading, -1);
|
|
0
|
884 r->stat_reading = 0;
|
|
110
|
885 ngx_atomic_fetch_add(ngx_stat_writing, 1);
|
|
0
|
886 r->stat_writing = 1;
|
|
|
887 #endif
|
|
|
888
|
|
58
|
889 rev->handler = ngx_http_request_handler;
|
|
|
890 c->write->handler = ngx_http_request_handler;
|
|
|
891 r->read_event_handler = ngx_http_block_read;
|
|
|
892
|
|
0
|
893 ngx_http_handler(r);
|
|
86
|
894
|
|
0
|
895 return;
|
|
54
|
896 }
|
|
|
897
|
|
|
898 if (rc == NGX_AGAIN) {
|
|
|
899
|
|
|
900 /* a header line parsing is still not complete */
|
|
|
901
|
|
|
902 continue;
|
|
0
|
903 }
|
|
|
904
|
|
54
|
905 /* rc == NGX_HTTP_PARSE_INVALID_HEADER: "\r" is not followed by "\n" */
|
|
|
906
|
|
|
907 header.len = r->header_end - r->header_name_start;
|
|
|
908 header.data = r->header_name_start;
|
|
|
909 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
|
910 "client sent invalid header line: \"%V\\r...\"",
|
|
|
911 &header);
|
|
|
912 ngx_http_close_request(r, NGX_HTTP_BAD_REQUEST);
|
|
|
913 return;
|
|
0
|
914 }
|
|
|
915 }
|
|
|
916
|
|
|
917
|
|
50
|
918 static ssize_t
|
|
|
919 ngx_http_read_request_header(ngx_http_request_t *r)
|
|
0
|
920 {
|
|
|
921 ssize_t n;
|
|
|
922 ngx_event_t *rev;
|
|
|
923 ngx_http_core_srv_conf_t *cscf;
|
|
|
924
|
|
|
925 rev = r->connection->read;
|
|
|
926
|
|
|
927 n = r->header_in->last - r->header_in->pos;
|
|
|
928
|
|
|
929 if (n > 0) {
|
|
|
930 return n;
|
|
|
931 }
|
|
|
932
|
|
72
|
933 if (rev->ready) {
|
|
|
934 n = r->connection->recv(r->connection, r->header_in->last,
|
|
|
935 r->header_in->end - r->header_in->last);
|
|
|
936 } else {
|
|
|
937 n = NGX_AGAIN;
|
|
0
|
938 }
|
|
|
939
|
|
|
940 if (n == NGX_AGAIN) {
|
|
|
941 if (!r->header_timeout_set) {
|
|
|
942 cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
|
|
|
943 ngx_add_timer(rev, cscf->client_header_timeout);
|
|
|
944 r->header_timeout_set = 1;
|
|
|
945 }
|
|
|
946
|
|
|
947 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) {
|
|
|
948 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
949 return NGX_ERROR;
|
|
|
950 }
|
|
|
951
|
|
|
952 return NGX_AGAIN;
|
|
|
953 }
|
|
|
954
|
|
|
955 if (n == 0) {
|
|
|
956 ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
|
|
|
957 "client closed prematurely connection");
|
|
|
958 }
|
|
|
959
|
|
|
960 if (n == 0 || n == NGX_ERROR) {
|
|
194
|
961 ngx_http_finalize_request(r, NGX_HTTP_BAD_REQUEST);
|
|
0
|
962 return NGX_ERROR;
|
|
|
963 }
|
|
|
964
|
|
|
965 r->header_in->last += n;
|
|
|
966
|
|
|
967 return n;
|
|
|
968 }
|
|
|
969
|
|
|
970
|
|
50
|
971 static ngx_int_t
|
|
|
972 ngx_http_alloc_large_header_buffer(ngx_http_request_t *r,
|
|
|
973 ngx_uint_t request_line)
|
|
0
|
974 {
|
|
|
975 u_char *old, *new;
|
|
|
976 ngx_buf_t *b;
|
|
|
977 ngx_http_connection_t *hc;
|
|
|
978 ngx_http_core_srv_conf_t *cscf;
|
|
|
979
|
|
|
980 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
981 "http alloc large header buffer");
|
|
|
982
|
|
|
983 if (request_line && r->state == 0) {
|
|
|
984
|
|
|
985 /* the client fills up the buffer with "\r\n" */
|
|
|
986
|
|
24
|
987 r->request_length += r->header_in->end - r->header_in->start;
|
|
|
988
|
|
0
|
989 r->header_in->pos = r->header_in->start;
|
|
|
990 r->header_in->last = r->header_in->start;
|
|
|
991
|
|
|
992 return NGX_OK;
|
|
|
993 }
|
|
|
994
|
|
|
995 old = request_line ? r->request_start : r->header_name_start;
|
|
|
996
|
|
|
997 cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
|
|
|
998
|
|
|
999 if (r->state != 0
|
|
|
1000 && (size_t) (r->header_in->pos - old)
|
|
|
1001 >= cscf->large_client_header_buffers.size)
|
|
|
1002 {
|
|
|
1003 return NGX_DECLINED;
|
|
|
1004 }
|
|
|
1005
|
|
|
1006 hc = r->http_connection;
|
|
|
1007
|
|
|
1008 if (hc->nfree) {
|
|
|
1009 b = hc->free[--hc->nfree];
|
|
|
1010
|
|
|
1011 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
10
|
1012 "http large header free: %p %uz",
|
|
0
|
1013 b->pos, b->end - b->last);
|
|
|
1014
|
|
|
1015 } else if (hc->nbusy < cscf->large_client_header_buffers.num) {
|
|
|
1016
|
|
|
1017 if (hc->busy == NULL) {
|
|
|
1018 hc->busy = ngx_palloc(r->connection->pool,
|
|
|
1019 cscf->large_client_header_buffers.num * sizeof(ngx_buf_t *));
|
|
|
1020 if (hc->busy == NULL) {
|
|
|
1021 return NGX_ERROR;
|
|
|
1022 }
|
|
|
1023 }
|
|
|
1024
|
|
|
1025 b = ngx_create_temp_buf(r->connection->pool,
|
|
|
1026 cscf->large_client_header_buffers.size);
|
|
|
1027 if (b == NULL) {
|
|
|
1028 return NGX_ERROR;
|
|
|
1029 }
|
|
|
1030
|
|
|
1031 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
10
|
1032 "http large header alloc: %p %uz",
|
|
0
|
1033 b->pos, b->end - b->last);
|
|
|
1034
|
|
|
1035 } else {
|
|
|
1036 return NGX_DECLINED;
|
|
|
1037 }
|
|
|
1038
|
|
|
1039 hc->busy[hc->nbusy++] = b;
|
|
|
1040
|
|
|
1041 if (r->state == 0) {
|
|
|
1042 /*
|
|
|
1043 * r->state == 0 means that a header line was parsed successfully
|
|
|
1044 * and we do not need to copy incomplete header line and
|
|
|
1045 * to relocate the parser header pointers
|
|
|
1046 */
|
|
|
1047
|
|
24
|
1048 r->request_length += r->header_in->end - r->header_in->start;
|
|
|
1049
|
|
0
|
1050 r->header_in = b;
|
|
|
1051
|
|
|
1052 return NGX_OK;
|
|
|
1053 }
|
|
|
1054
|
|
|
1055 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1056 "http large header copy: %d", r->header_in->pos - old);
|
|
|
1057
|
|
24
|
1058 r->request_length += old - r->header_in->start;
|
|
|
1059
|
|
0
|
1060 new = b->start;
|
|
|
1061
|
|
|
1062 ngx_memcpy(new, old, r->header_in->pos - old);
|
|
|
1063
|
|
|
1064 b->pos = new + (r->header_in->pos - old);
|
|
|
1065 b->last = new + (r->header_in->pos - old);
|
|
|
1066
|
|
|
1067 if (request_line) {
|
|
|
1068 r->request_start = new;
|
|
|
1069
|
|
|
1070 if (r->request_end) {
|
|
|
1071 r->request_end = new + (r->request_end - old);
|
|
|
1072 }
|
|
|
1073
|
|
|
1074 r->method_end = new + (r->method_end - old);
|
|
|
1075
|
|
|
1076 r->uri_start = new + (r->uri_start - old);
|
|
|
1077 r->uri_end = new + (r->uri_end - old);
|
|
|
1078
|
|
|
1079 if (r->schema_start) {
|
|
|
1080 r->schema_start = new + (r->schema_start - old);
|
|
|
1081 r->schema_end = new + (r->schema_end - old);
|
|
|
1082 }
|
|
|
1083
|
|
|
1084 if (r->host_start) {
|
|
|
1085 r->host_start = new + (r->host_start - old);
|
|
|
1086 r->host_end = new + (r->host_end - old);
|
|
|
1087 }
|
|
|
1088
|
|
|
1089 if (r->port_start) {
|
|
|
1090 r->port_start = new + (r->port_start - old);
|
|
|
1091 r->port_end = new + (r->port_end - old);
|
|
|
1092 }
|
|
|
1093
|
|
|
1094 if (r->uri_ext) {
|
|
|
1095 r->uri_ext = new + (r->uri_ext - old);
|
|
|
1096 }
|
|
|
1097
|
|
|
1098 if (r->args_start) {
|
|
|
1099 r->args_start = new + (r->args_start - old);
|
|
|
1100 }
|
|
|
1101
|
|
|
1102 } else {
|
|
|
1103 r->header_name_start = new;
|
|
|
1104 r->header_name_end = new + (r->header_name_end - old);
|
|
|
1105 r->header_start = new + (r->header_start - old);
|
|
|
1106 r->header_end = new + (r->header_end - old);
|
|
|
1107 }
|
|
|
1108
|
|
|
1109 r->header_in = b;
|
|
|
1110
|
|
|
1111 return NGX_OK;
|
|
|
1112 }
|
|
|
1113
|
|
|
1114
|
|
50
|
1115 static ngx_int_t
|
|
58
|
1116 ngx_http_process_header_line(ngx_http_request_t *r, ngx_table_elt_t *h,
|
|
|
1117 ngx_uint_t offset)
|
|
|
1118 {
|
|
|
1119 ngx_table_elt_t **ph;
|
|
|
1120
|
|
|
1121 ph = (ngx_table_elt_t **) ((char *) &r->headers_in + offset);
|
|
|
1122
|
|
|
1123 if (*ph == NULL) {
|
|
|
1124 *ph = h;
|
|
|
1125 }
|
|
|
1126
|
|
|
1127 return NGX_OK;
|
|
|
1128 }
|
|
|
1129
|
|
|
1130
|
|
|
1131 static ngx_int_t
|
|
72
|
1132 ngx_http_process_unique_header_line(ngx_http_request_t *r, ngx_table_elt_t *h,
|
|
|
1133 ngx_uint_t offset)
|
|
|
1134 {
|
|
|
1135 ngx_table_elt_t **ph;
|
|
|
1136
|
|
|
1137 ph = (ngx_table_elt_t **) ((char *) &r->headers_in + offset);
|
|
|
1138
|
|
|
1139 if (*ph == NULL) {
|
|
|
1140 *ph = h;
|
|
|
1141 return NGX_OK;
|
|
|
1142 }
|
|
|
1143
|
|
|
1144 ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
|
|
|
1145 "client sent duplicate header line: \"%V: %V\"",
|
|
|
1146 &h->key, &h->value);
|
|
|
1147
|
|
|
1148 ngx_http_finalize_request(r, NGX_HTTP_BAD_REQUEST);
|
|
|
1149
|
|
|
1150 return NGX_ERROR;
|
|
|
1151 }
|
|
|
1152
|
|
|
1153
|
|
|
1154 static ngx_int_t
|
|
58
|
1155 ngx_http_process_cookie(ngx_http_request_t *r, ngx_table_elt_t *h,
|
|
|
1156 ngx_uint_t offset)
|
|
|
1157 {
|
|
|
1158 ngx_table_elt_t **cookie;
|
|
|
1159
|
|
|
1160 cookie = ngx_array_push(&r->headers_in.cookies);
|
|
72
|
1161 if (cookie) {
|
|
|
1162 *cookie = h;
|
|
|
1163 return NGX_OK;
|
|
58
|
1164 }
|
|
|
1165
|
|
72
|
1166 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
1167
|
|
|
1168 return NGX_ERROR;
|
|
58
|
1169 }
|
|
|
1170
|
|
|
1171
|
|
|
1172 static ngx_int_t
|
|
50
|
1173 ngx_http_process_request_header(ngx_http_request_t *r)
|
|
0
|
1174 {
|
|
196
|
1175 size_t len;
|
|
|
1176 u_char *ua, *user_agent, ch;
|
|
|
1177 #if (NGX_HTTP_SSL)
|
|
|
1178 long rc;
|
|
|
1179 ngx_http_ssl_srv_conf_t *sscf;
|
|
|
1180 #endif
|
|
0
|
1181
|
|
|
1182 if (r->headers_in.host) {
|
|
|
1183 for (len = 0; len < r->headers_in.host->value.len; len++) {
|
|
26
|
1184 ch = r->headers_in.host->value.data[len];
|
|
|
1185
|
|
|
1186 if (ch == ':') {
|
|
0
|
1187 break;
|
|
|
1188 }
|
|
26
|
1189
|
|
|
1190 r->headers_in.host->value.data[len] = ngx_tolower(ch);
|
|
0
|
1191 }
|
|
54
|
1192
|
|
58
|
1193 if (r->headers_in.host->value.data[len - 1] == '.') {
|
|
|
1194 len--;
|
|
|
1195 }
|
|
|
1196
|
|
0
|
1197 r->headers_in.host_name_len = len;
|
|
|
1198
|
|
162
|
1199 ngx_http_find_virtual_server(r);
|
|
0
|
1200
|
|
|
1201 } else {
|
|
|
1202 if (r->http_version > NGX_HTTP_VERSION_10) {
|
|
54
|
1203 ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
|
|
|
1204 "client sent HTTP/1.1 request without \"Host\" header");
|
|
|
1205 ngx_http_finalize_request(r, NGX_HTTP_BAD_REQUEST);
|
|
|
1206 return NGX_ERROR;
|
|
0
|
1207 }
|
|
54
|
1208
|
|
0
|
1209 r->headers_in.host_name_len = 0;
|
|
|
1210 }
|
|
|
1211
|
|
|
1212 if (r->headers_in.content_length) {
|
|
|
1213 r->headers_in.content_length_n =
|
|
50
|
1214 ngx_atosz(r->headers_in.content_length->value.data,
|
|
0
|
1215 r->headers_in.content_length->value.len);
|
|
|
1216
|
|
|
1217 if (r->headers_in.content_length_n == NGX_ERROR) {
|
|
54
|
1218 ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
|
|
|
1219 "client sent invalid \"Content-Length\" header");
|
|
130
|
1220 ngx_http_finalize_request(r, NGX_HTTP_LENGTH_REQUIRED);
|
|
54
|
1221 return NGX_ERROR;
|
|
0
|
1222 }
|
|
|
1223 }
|
|
|
1224
|
|
188
|
1225 if (r->method & (NGX_HTTP_POST|NGX_HTTP_PUT)
|
|
|
1226 && r->headers_in.content_length_n == -1)
|
|
|
1227 {
|
|
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
|
|
196
|
1250 #if (NGX_HTTP_SSL)
|
|
|
1251
|
|
|
1252 if (r->connection->ssl) {
|
|
|
1253 sscf = ngx_http_get_module_srv_conf(r, ngx_http_ssl_module);
|
|
|
1254
|
|
|
1255 if (sscf->verify) {
|
|
|
1256 rc = SSL_get_verify_result(r->connection->ssl->connection);
|
|
|
1257
|
|
|
1258 if (rc != X509_V_OK) {
|
|
|
1259 ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
|
|
|
1260 "client SSL certificate verify error: %l ", rc);
|
|
|
1261 ngx_http_finalize_request(r, NGX_HTTPS_CERT_ERROR);
|
|
|
1262 return NGX_ERROR;
|
|
|
1263 }
|
|
|
1264
|
|
|
1265 if (SSL_get_peer_certificate(r->connection->ssl->connection)
|
|
|
1266 == NULL)
|
|
|
1267 {
|
|
|
1268 ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
|
|
|
1269 "client sent no required SSL certificate");
|
|
|
1270 ngx_http_finalize_request(r, NGX_HTTPS_NO_CERT);
|
|
|
1271 return NGX_ERROR;
|
|
|
1272 }
|
|
|
1273 }
|
|
|
1274 }
|
|
|
1275
|
|
|
1276 #endif
|
|
|
1277
|
|
0
|
1278 if (r->headers_in.connection) {
|
|
|
1279 if (r->headers_in.connection->value.len == 5
|
|
|
1280 && ngx_strcasecmp(r->headers_in.connection->value.data, "close")
|
|
58
|
1281 == 0)
|
|
0
|
1282 {
|
|
|
1283 r->headers_in.connection_type = NGX_HTTP_CONNECTION_CLOSE;
|
|
|
1284
|
|
|
1285 } else if (r->headers_in.connection->value.len == 10
|
|
|
1286 && ngx_strcasecmp(r->headers_in.connection->value.data,
|
|
58
|
1287 "keep-alive") == 0)
|
|
0
|
1288 {
|
|
|
1289 r->headers_in.connection_type = NGX_HTTP_CONNECTION_KEEP_ALIVE;
|
|
|
1290
|
|
|
1291 if (r->headers_in.keep_alive) {
|
|
|
1292 r->headers_in.keep_alive_n =
|
|
50
|
1293 ngx_atotm(r->headers_in.keep_alive->value.data,
|
|
0
|
1294 r->headers_in.keep_alive->value.len);
|
|
|
1295 }
|
|
|
1296 }
|
|
|
1297 }
|
|
|
1298
|
|
|
1299 if (r->headers_in.user_agent) {
|
|
|
1300
|
|
|
1301 /*
|
|
|
1302 * check some widespread browsers while the headers are still
|
|
|
1303 * in CPU cache
|
|
|
1304 */
|
|
|
1305
|
|
|
1306 user_agent = r->headers_in.user_agent->value.data;
|
|
|
1307
|
|
|
1308 ua = (u_char *) ngx_strstr(user_agent, "MSIE");
|
|
|
1309
|
|
|
1310 if (ua && ua + 8 < user_agent + r->headers_in.user_agent->value.len) {
|
|
|
1311
|
|
|
1312 r->headers_in.msie = 1;
|
|
|
1313
|
|
|
1314 if (ua[4] == ' ' && ua[5] == '4' && ua[6] == '.') {
|
|
|
1315 r->headers_in.msie4 = 1;
|
|
|
1316 }
|
|
|
1317
|
|
|
1318 #if 0
|
|
|
1319 /* MSIE ignores the SSL "close notify" alert */
|
|
22
|
1320 if (c->ssl) {
|
|
96
|
1321 c->ssl->no_send_shutdown = 1;
|
|
22
|
1322 }
|
|
0
|
1323 #endif
|
|
|
1324 }
|
|
|
1325
|
|
|
1326 if (ngx_strstr(user_agent, "Opera")) {
|
|
|
1327 r->headers_in.opera = 1;
|
|
|
1328 r->headers_in.msie = 0;
|
|
|
1329 r->headers_in.msie4 = 0;
|
|
|
1330 }
|
|
|
1331
|
|
|
1332 if (!r->headers_in.msie && !r->headers_in.opera) {
|
|
|
1333
|
|
|
1334 if (ngx_strstr(user_agent, "Gecko/")) {
|
|
|
1335 r->headers_in.gecko = 1;
|
|
|
1336
|
|
|
1337 } else if (ngx_strstr(user_agent, "Konqueror")) {
|
|
|
1338 r->headers_in.konqueror = 1;
|
|
|
1339 }
|
|
|
1340 }
|
|
|
1341 }
|
|
|
1342
|
|
|
1343 return NGX_OK;
|
|
|
1344 }
|
|
|
1345
|
|
|
1346
|
|
162
|
1347 static void
|
|
50
|
1348 ngx_http_find_virtual_server(ngx_http_request_t *r)
|
|
26
|
1349 {
|
|
142
|
1350 size_t len;
|
|
|
1351 u_char *host;
|
|
|
1352 ngx_http_virtual_names_t *vn;
|
|
|
1353 ngx_http_core_loc_conf_t *clcf;
|
|
|
1354 ngx_http_core_srv_conf_t *cscf;
|
|
|
1355
|
|
|
1356 vn = r->virtual_names;
|
|
|
1357
|
|
|
1358 if (vn == NULL) {
|
|
162
|
1359 return;
|
|
26
|
1360 }
|
|
|
1361
|
|
142
|
1362 host = r->headers_in.host->value.data;
|
|
|
1363 len = r->headers_in.host_name_len;
|
|
|
1364
|
|
|
1365 /* STUB: ngx_hash_key() here is STUB */
|
|
|
1366
|
|
|
1367 if (vn->hash.buckets) {
|
|
|
1368 cscf = ngx_hash_find(&vn->hash, ngx_hash_key(host, len), host, len);
|
|
|
1369 if (cscf) {
|
|
58
|
1370 goto found;
|
|
26
|
1371 }
|
|
|
1372 }
|
|
|
1373
|
|
142
|
1374 if (vn->dns_wildcards && vn->dns_wildcards->hash.buckets) {
|
|
|
1375 cscf = ngx_hash_find_wildcard(vn->dns_wildcards, host, len);
|
|
|
1376
|
|
|
1377 if (cscf) {
|
|
|
1378 goto found;
|
|
26
|
1379 }
|
|
|
1380 }
|
|
|
1381
|
|
162
|
1382 return;
|
|
58
|
1383
|
|
|
1384 found:
|
|
|
1385
|
|
142
|
1386 r->server_name.len = len;
|
|
|
1387 r->server_name.data = host;
|
|
|
1388
|
|
|
1389 r->srv_conf = cscf->ctx->srv_conf;
|
|
|
1390 r->loc_conf = cscf->ctx->loc_conf;
|
|
58
|
1391
|
|
|
1392 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
1393 r->connection->log->file = clcf->err_log->file;
|
|
|
1394
|
|
|
1395 if (!(r->connection->log->log_level & NGX_LOG_DEBUG_CONNECTION)) {
|
|
|
1396 r->connection->log->log_level = clcf->err_log->log_level;
|
|
26
|
1397 }
|
|
|
1398
|
|
162
|
1399 return;
|
|
26
|
1400 }
|
|
|
1401
|
|
|
1402
|
|
58
|
1403 static void
|
|
|
1404 ngx_http_request_handler(ngx_event_t *ev)
|
|
|
1405 {
|
|
|
1406 ngx_connection_t *c;
|
|
|
1407 ngx_http_request_t *r;
|
|
|
1408
|
|
|
1409 c = ev->data;
|
|
|
1410 r = c->data;
|
|
|
1411
|
|
|
1412 if (ev->write) {
|
|
|
1413 r->write_event_handler(r);
|
|
|
1414
|
|
|
1415 } else {
|
|
|
1416 r->read_event_handler(r);
|
|
|
1417 }
|
|
|
1418 }
|
|
|
1419
|
|
|
1420
|
|
50
|
1421 void
|
|
58
|
1422 ngx_http_finalize_request(ngx_http_request_t *r, ngx_int_t rc)
|
|
0
|
1423 {
|
|
58
|
1424 ngx_http_request_t *pr;
|
|
0
|
1425 ngx_http_core_loc_conf_t *clcf;
|
|
|
1426
|
|
58
|
1427 if (rc == NGX_DONE) {
|
|
118
|
1428 /* the request pool may be already destroyed */
|
|
58
|
1429 return;
|
|
|
1430 }
|
|
|
1431
|
|
132
|
1432 ngx_log_debug3(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1433 "http finalize request: %d, \"%V?%V\"",
|
|
|
1434 rc, &r->uri, &r->args);
|
|
|
1435
|
|
162
|
1436 if (rc == NGX_ERROR
|
|
|
1437 || rc == NGX_HTTP_REQUEST_TIME_OUT
|
|
|
1438 || r->connection->error)
|
|
|
1439 {
|
|
190
|
1440 if (rc == NGX_HTTP_CLIENT_CLOSED_REQUEST
|
|
|
1441 && r->headers_out.status == 0)
|
|
|
1442 {
|
|
|
1443 r->headers_out.status = NGX_HTTP_CLIENT_CLOSED_REQUEST;
|
|
|
1444 }
|
|
|
1445
|
|
162
|
1446 if (ngx_http_post_action(r) == NGX_OK) {
|
|
|
1447 return;
|
|
|
1448 }
|
|
|
1449
|
|
118
|
1450 ngx_http_close_request(r, 0);
|
|
0
|
1451 return;
|
|
|
1452 }
|
|
|
1453
|
|
186
|
1454 if (rc >= NGX_HTTP_SPECIAL_RESPONSE
|
|
|
1455 || rc == NGX_HTTP_CREATED
|
|
|
1456 || rc == NGX_HTTP_NO_CONTENT)
|
|
|
1457 {
|
|
118
|
1458
|
|
136
|
1459 if (rc == NGX_HTTP_CLOSE) {
|
|
|
1460 ngx_http_close_request(r, rc);
|
|
|
1461 return;
|
|
|
1462 }
|
|
|
1463
|
|
146
|
1464 if (r == r->main) {
|
|
118
|
1465 if (r->connection->read->timer_set) {
|
|
|
1466 ngx_del_timer(r->connection->read);
|
|
|
1467 }
|
|
|
1468
|
|
|
1469 if (r->connection->write->timer_set) {
|
|
|
1470 ngx_del_timer(r->connection->write);
|
|
|
1471 }
|
|
|
1472 }
|
|
|
1473
|
|
|
1474 ngx_http_finalize_request(r, ngx_http_special_response_handler(r, rc));
|
|
|
1475 return;
|
|
|
1476 }
|
|
|
1477
|
|
146
|
1478 if (r != r->main || rc == NGX_AGAIN) {
|
|
74
|
1479 if (ngx_http_set_write_handler(r) != NGX_OK) {
|
|
|
1480 return;
|
|
|
1481 }
|
|
58
|
1482 }
|
|
|
1483
|
|
|
1484 r->done = 1;
|
|
|
1485
|
|
|
1486 if (r != r->connection->data) {
|
|
132
|
1487 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1488 "http finalize non-active request: \"%V?%V\"",
|
|
|
1489 &r->uri, &r->args);
|
|
58
|
1490 return;
|
|
|
1491 }
|
|
|
1492
|
|
146
|
1493 if (r != r->main) {
|
|
58
|
1494
|
|
|
1495 pr = r->parent;
|
|
|
1496
|
|
132
|
1497 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1498 "http parent request: \"%V?%V\"", &pr->uri, &pr->args);
|
|
76
|
1499
|
|
58
|
1500 if (rc != NGX_AGAIN) {
|
|
146
|
1501 r->connection->data = pr;
|
|
58
|
1502 }
|
|
|
1503
|
|
|
1504 if (pr->postponed) {
|
|
|
1505
|
|
132
|
1506 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1507 "http request: \"%V?%V\" has postponed",
|
|
|
1508 &pr->uri, &pr->args);
|
|
76
|
1509
|
|
58
|
1510 if (rc != NGX_AGAIN && pr->postponed->request == r) {
|
|
|
1511 pr->postponed = pr->postponed->next;
|
|
146
|
1512 }
|
|
|
1513
|
|
|
1514 if (r->fast_subrequest) {
|
|
194
|
1515
|
|
|
1516 if (rc == NGX_AGAIN) {
|
|
|
1517 r->fast_subrequest = 0;
|
|
|
1518 }
|
|
|
1519
|
|
146
|
1520 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1521 "http fast subrequest: \"%V?%V\" done",
|
|
|
1522 &r->uri, &r->args);
|
|
|
1523 return;
|
|
58
|
1524 }
|
|
|
1525
|
|
194
|
1526 if (rc != NGX_AGAIN) {
|
|
|
1527 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1528 "http wake parent request: \"%V?%V\"",
|
|
|
1529 &pr->uri, &pr->args);
|
|
|
1530
|
|
|
1531 pr->write_event_handler(pr);
|
|
|
1532 }
|
|
58
|
1533 }
|
|
|
1534
|
|
|
1535 return;
|
|
|
1536 }
|
|
0
|
1537
|
|
118
|
1538 if (rc == NGX_AGAIN) {
|
|
0
|
1539 return;
|
|
76
|
1540 }
|
|
|
1541
|
|
146
|
1542 if (r->connection->buffered) {
|
|
74
|
1543 (void) ngx_http_set_write_handler(r);
|
|
0
|
1544 return;
|
|
|
1545 }
|
|
|
1546
|
|
178
|
1547 if (!r->post_action) {
|
|
|
1548 r->request_complete = 1;
|
|
|
1549 }
|
|
|
1550
|
|
162
|
1551 if (ngx_http_post_action(r) == NGX_OK) {
|
|
126
|
1552 return;
|
|
|
1553 }
|
|
|
1554
|
|
0
|
1555 if (r->connection->read->timer_set) {
|
|
|
1556 ngx_del_timer(r->connection->read);
|
|
|
1557 }
|
|
|
1558
|
|
|
1559 if (r->connection->write->timer_set) {
|
|
|
1560 r->connection->write->delayed = 0;
|
|
|
1561 ngx_del_timer(r->connection->write);
|
|
|
1562 }
|
|
|
1563
|
|
138
|
1564 if (r->connection->destroyed) {
|
|
|
1565 return;
|
|
|
1566 }
|
|
|
1567
|
|
162
|
1568 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
0
|
1569
|
|
|
1570 if (!ngx_terminate
|
|
|
1571 && !ngx_exiting
|
|
|
1572 && r->keepalive != 0
|
|
|
1573 && clcf->keepalive_timeout > 0)
|
|
|
1574 {
|
|
|
1575 ngx_http_set_keepalive(r);
|
|
|
1576 return;
|
|
|
1577
|
|
|
1578 } else if (r->lingering_close && clcf->lingering_timeout > 0) {
|
|
|
1579 ngx_http_set_lingering_close(r);
|
|
|
1580 return;
|
|
|
1581 }
|
|
|
1582
|
|
|
1583 ngx_http_close_request(r, 0);
|
|
|
1584 }
|
|
|
1585
|
|
|
1586
|
|
74
|
1587 static ngx_int_t
|
|
50
|
1588 ngx_http_set_write_handler(ngx_http_request_t *r)
|
|
0
|
1589 {
|
|
|
1590 ngx_event_t *wev;
|
|
|
1591 ngx_http_core_loc_conf_t *clcf;
|
|
|
1592
|
|
58
|
1593 r->http_state = NGX_HTTP_WRITING_REQUEST_STATE;
|
|
|
1594
|
|
74
|
1595 r->write_event_handler = ngx_http_writer;
|
|
|
1596
|
|
0
|
1597 wev = r->connection->write;
|
|
|
1598
|
|
|
1599 if (wev->ready && wev->delayed) {
|
|
74
|
1600 return NGX_OK;
|
|
0
|
1601 }
|
|
|
1602
|
|
58
|
1603 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
0
|
1604 if (!wev->delayed) {
|
|
|
1605 ngx_add_timer(wev, clcf->send_timeout);
|
|
|
1606 }
|
|
|
1607
|
|
2
|
1608 if (ngx_handle_write_event(wev, clcf->send_lowat) == NGX_ERROR) {
|
|
0
|
1609 ngx_http_close_request(r, 0);
|
|
74
|
1610 return NGX_ERROR;
|
|
0
|
1611 }
|
|
74
|
1612
|
|
|
1613 return NGX_OK;
|
|
0
|
1614 }
|
|
|
1615
|
|
|
1616
|
|
58
|
1617 static void
|
|
|
1618 ngx_http_writer(ngx_http_request_t *r)
|
|
0
|
1619 {
|
|
|
1620 int rc;
|
|
58
|
1621 ngx_event_t *wev;
|
|
0
|
1622 ngx_connection_t *c;
|
|
|
1623 ngx_http_core_loc_conf_t *clcf;
|
|
|
1624
|
|
58
|
1625 c = r->connection;
|
|
|
1626 wev = c->write;
|
|
|
1627
|
|
132
|
1628 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, wev->log, 0,
|
|
|
1629 "http writer handler: \"%V?%V\"", &r->uri, &r->args);
|
|
0
|
1630
|
|
|
1631 if (wev->timedout) {
|
|
|
1632 if (!wev->delayed) {
|
|
54
|
1633 ngx_log_error(NGX_LOG_INFO, c->log, NGX_ETIMEDOUT,
|
|
|
1634 "client timed out");
|
|
|
1635 c->timedout = 1;
|
|
116
|
1636
|
|
162
|
1637 ngx_http_finalize_request(r, NGX_HTTP_REQUEST_TIME_OUT);
|
|
0
|
1638 return;
|
|
|
1639 }
|
|
|
1640
|
|
|
1641 wev->timedout = 0;
|
|
|
1642 wev->delayed = 0;
|
|
|
1643
|
|
|
1644 if (!wev->ready) {
|
|
102
|
1645 clcf = ngx_http_get_module_loc_conf(r->main, ngx_http_core_module);
|
|
0
|
1646 ngx_add_timer(wev, clcf->send_timeout);
|
|
|
1647
|
|
2
|
1648 if (ngx_handle_write_event(wev, clcf->send_lowat) == NGX_ERROR) {
|
|
118
|
1649 ngx_http_close_request(r, 0);
|
|
0
|
1650 }
|
|
|
1651
|
|
|
1652 return;
|
|
|
1653 }
|
|
|
1654
|
|
|
1655 } else {
|
|
|
1656 if (wev->delayed) {
|
|
|
1657 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, wev->log, 0,
|
|
|
1658 "http writer delayed");
|
|
|
1659
|
|
102
|
1660 clcf = ngx_http_get_module_loc_conf(r->main, ngx_http_core_module);
|
|
2
|
1661
|
|
|
1662 if (ngx_handle_write_event(wev, clcf->send_lowat) == NGX_ERROR) {
|
|
118
|
1663 ngx_http_close_request(r, 0);
|
|
0
|
1664 }
|
|
|
1665
|
|
|
1666 return;
|
|
|
1667 }
|
|
|
1668 }
|
|
|
1669
|
|
132
|
1670 rc = ngx_http_output_filter(r, NULL);
|
|
|
1671
|
|
|
1672 if (c->destroyed) {
|
|
|
1673 return;
|
|
58
|
1674 }
|
|
|
1675
|
|
132
|
1676 ngx_log_debug3(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
|
1677 "http writer output filter: %d, \"%V?%V\"",
|
|
|
1678 rc, &r->uri, &r->args);
|
|
0
|
1679
|
|
|
1680 if (rc == NGX_AGAIN) {
|
|
102
|
1681 clcf = ngx_http_get_module_loc_conf(r->main, ngx_http_core_module);
|
|
0
|
1682 if (!wev->ready && !wev->delayed) {
|
|
|
1683 ngx_add_timer(wev, clcf->send_timeout);
|
|
|
1684 }
|
|
|
1685
|
|
2
|
1686 if (ngx_handle_write_event(wev, clcf->send_lowat) == NGX_ERROR) {
|
|
118
|
1687 ngx_http_close_request(r, 0);
|
|
0
|
1688 }
|
|
|
1689
|
|
146
|
1690 if (r == r->main) {
|
|
|
1691 return;
|
|
|
1692 }
|
|
|
1693
|
|
|
1694 rc = NGX_OK;
|
|
0
|
1695 }
|
|
|
1696
|
|
132
|
1697 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, wev->log, 0,
|
|
|
1698 "http writer done: \"%V?%V\"", &r->uri, &r->args);
|
|
0
|
1699
|
|
|
1700 ngx_http_finalize_request(r, rc);
|
|
|
1701 }
|
|
|
1702
|
|
|
1703
|
|
50
|
1704 static void
|
|
58
|
1705 ngx_http_block_read(ngx_http_request_t *r)
|
|
0
|
1706 {
|
|
58
|
1707 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1708 "http read blocked");
|
|
0
|
1709
|
|
|
1710 /* aio does not call this handler */
|
|
|
1711
|
|
58
|
1712 if ((ngx_event_flags & NGX_USE_LEVEL_EVENT)
|
|
|
1713 && r->connection->read->active)
|
|
|
1714 {
|
|
|
1715 if (ngx_del_event(r->connection->read, NGX_READ_EVENT, 0)
|
|
|
1716 == NGX_ERROR)
|
|
|
1717 {
|
|
0
|
1718 ngx_http_close_request(r, 0);
|
|
|
1719 }
|
|
|
1720 }
|
|
|
1721 }
|
|
|
1722
|
|
|
1723
|
|
50
|
1724 static void
|
|
|
1725 ngx_http_set_keepalive(ngx_http_request_t *r)
|
|
0
|
1726 {
|
|
2
|
1727 int tcp_nodelay;
|
|
0
|
1728 ngx_int_t i;
|
|
|
1729 ngx_buf_t *b, *f;
|
|
|
1730 ngx_event_t *rev, *wev;
|
|
|
1731 ngx_connection_t *c;
|
|
|
1732 ngx_http_connection_t *hc;
|
|
|
1733 ngx_http_core_srv_conf_t *cscf;
|
|
|
1734 ngx_http_core_loc_conf_t *clcf;
|
|
|
1735
|
|
|
1736 c = r->connection;
|
|
|
1737 rev = c->read;
|
|
|
1738
|
|
|
1739 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "set http keepalive handler");
|
|
|
1740
|
|
32
|
1741 c->log->action = "closing request";
|
|
0
|
1742
|
|
|
1743 hc = r->http_connection;
|
|
|
1744 b = r->header_in;
|
|
|
1745
|
|
|
1746 if (b->pos < b->last) {
|
|
|
1747
|
|
|
1748 /* the pipelined request */
|
|
|
1749
|
|
|
1750 if (b != c->buffer) {
|
|
|
1751
|
|
4
|
1752 /*
|
|
|
1753 * If the large header buffers were allocated while the previous
|
|
|
1754 * request processing then we do not use c->buffer for
|
|
|
1755 * the pipelined request (see ngx_http_init_request()).
|
|
126
|
1756 *
|
|
4
|
1757 * Now we would move the large header buffers to the free list.
|
|
|
1758 */
|
|
0
|
1759
|
|
|
1760 cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
|
|
|
1761
|
|
|
1762 if (hc->free == NULL) {
|
|
|
1763 hc->free = ngx_palloc(c->pool,
|
|
|
1764 cscf->large_client_header_buffers.num * sizeof(ngx_buf_t *));
|
|
|
1765
|
|
|
1766 if (hc->free == NULL) {
|
|
26
|
1767 ngx_http_close_request(r, 0);
|
|
0
|
1768 return;
|
|
|
1769 }
|
|
|
1770 }
|
|
|
1771
|
|
|
1772 for (i = 0; i < hc->nbusy - 1; i++) {
|
|
|
1773 f = hc->busy[i];
|
|
|
1774 hc->free[hc->nfree++] = f;
|
|
|
1775 f->pos = f->start;
|
|
|
1776 f->last = f->start;
|
|
|
1777 }
|
|
|
1778
|
|
|
1779 hc->busy[0] = b;
|
|
|
1780 hc->nbusy = 1;
|
|
|
1781 }
|
|
|
1782 }
|
|
|
1783
|
|
26
|
1784 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
1785
|
|
118
|
1786 ngx_http_request_done(r, 0);
|
|
|
1787
|
|
0
|
1788 c->data = hc;
|
|
|
1789
|
|
|
1790 ngx_add_timer(rev, clcf->keepalive_timeout);
|
|
|
1791
|
|
58
|
1792 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) {
|
|
0
|
1793 ngx_http_close_connection(c);
|
|
|
1794 return;
|
|
|
1795 }
|
|
|
1796
|
|
|
1797 wev = c->write;
|
|
58
|
1798 wev->handler = ngx_http_empty_handler;
|
|
0
|
1799
|
|
|
1800 if (b->pos < b->last) {
|
|
|
1801
|
|
|
1802 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "pipelined request");
|
|
|
1803
|
|
116
|
1804 #if (NGX_STAT_STUB)
|
|
|
1805 ngx_atomic_fetch_add(ngx_stat_reading, 1);
|
|
|
1806 #endif
|
|
|
1807
|
|
0
|
1808 hc->pipeline = 1;
|
|
32
|
1809 c->log->action = "reading client pipelined request line";
|
|
116
|
1810
|
|
0
|
1811 ngx_http_init_request(rev);
|
|
|
1812 return;
|
|
|
1813 }
|
|
|
1814
|
|
|
1815 hc->pipeline = 0;
|
|
|
1816
|
|
4
|
1817 /*
|
|
|
1818 * To keep a memory footprint as small as possible for an idle
|
|
|
1819 * keepalive connection we try to free the ngx_http_request_t and
|
|
|
1820 * c->buffer's memory if they were allocated outside the c->pool.
|
|
|
1821 * The large header buffers are always allocated outside the c->pool and
|
|
|
1822 * are freed too.
|
|
|
1823 */
|
|
|
1824
|
|
0
|
1825 if (ngx_pfree(c->pool, r) == NGX_OK) {
|
|
|
1826 hc->request = NULL;
|
|
|
1827 }
|
|
|
1828
|
|
|
1829 b = c->buffer;
|
|
|
1830
|
|
|
1831 if (ngx_pfree(c->pool, b->start) == NGX_OK) {
|
|
4
|
1832
|
|
|
1833 /*
|
|
|
1834 * the special note for ngx_http_keepalive_handler() that
|
|
|
1835 * c->buffer's memory was freed
|
|
|
1836 */
|
|
|
1837
|
|
0
|
1838 b->pos = NULL;
|
|
|
1839
|
|
|
1840 } else {
|
|
|
1841 b->pos = b->start;
|
|
|
1842 b->last = b->start;
|
|
|
1843 }
|
|
|
1844
|
|
10
|
1845 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, c->log, 0, "hc free: %p %d",
|
|
0
|
1846 hc->free, hc->nfree);
|
|
|
1847
|
|
|
1848 if (hc->free) {
|
|
|
1849 for (i = 0; i < hc->nfree; i++) {
|
|
|
1850 ngx_pfree(c->pool, hc->free[i]);
|
|
|
1851 hc->free[i] = NULL;
|
|
|
1852 }
|
|
|
1853
|
|
|
1854 hc->nfree = 0;
|
|
|
1855 }
|
|
|
1856
|
|
10
|
1857 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, c->log, 0, "hc busy: %p %d",
|
|
0
|
1858 hc->busy, hc->nbusy);
|
|
|
1859
|
|
|
1860 if (hc->busy) {
|
|
|
1861 for (i = 0; i < hc->nbusy; i++) {
|
|
|
1862 ngx_pfree(c->pool, hc->busy[i]);
|
|
|
1863 hc->busy[i] = NULL;
|
|
|
1864 }
|
|
|
1865
|
|
|
1866 hc->nbusy = 0;
|
|
|
1867 }
|
|
|
1868
|
|
58
|
1869 rev->handler = ngx_http_keepalive_handler;
|
|
0
|
1870
|
|
132
|
1871 if (wev->active && (ngx_event_flags & NGX_USE_LEVEL_EVENT)) {
|
|
|
1872 if (ngx_del_event(wev, NGX_WRITE_EVENT, 0) == NGX_ERROR) {
|
|
|
1873 ngx_http_close_connection(c);
|
|
|
1874 return;
|
|
0
|
1875 }
|
|
|
1876 }
|
|
|
1877
|
|
32
|
1878 c->log->action = "keepalive";
|
|
0
|
1879
|
|
|
1880 if (c->tcp_nopush == NGX_TCP_NOPUSH_SET) {
|
|
50
|
1881 if (ngx_tcp_push(c->fd) == -1) {
|
|
0
|
1882 ngx_connection_error(c, ngx_socket_errno, ngx_tcp_push_n " failed");
|
|
|
1883 ngx_http_close_connection(c);
|
|
|
1884 return;
|
|
|
1885 }
|
|
2
|
1886
|
|
0
|
1887 c->tcp_nopush = NGX_TCP_NOPUSH_UNSET;
|
|
22
|
1888 tcp_nodelay = ngx_tcp_nodelay_and_tcp_nopush ? 1 : 0;
|
|
2
|
1889
|
|
|
1890 } else {
|
|
22
|
1891 tcp_nodelay = 1;
|
|
|
1892 }
|
|
|
1893
|
|
32
|
1894 if (tcp_nodelay
|
|
|
1895 && clcf->tcp_nodelay
|
|
|
1896 && c->tcp_nodelay == NGX_TCP_NODELAY_UNSET)
|
|
|
1897 {
|
|
22
|
1898 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "tcp_nodelay");
|
|
|
1899
|
|
|
1900 if (setsockopt(c->fd, IPPROTO_TCP, TCP_NODELAY,
|
|
184
|
1901 (const void *) &tcp_nodelay, sizeof(int))
|
|
|
1902 == -1)
|
|
22
|
1903 {
|
|
|
1904 ngx_connection_error(c, ngx_socket_errno,
|
|
|
1905 "setsockopt(TCP_NODELAY) failed");
|
|
|
1906 ngx_http_close_connection(c);
|
|
|
1907 return;
|
|
2
|
1908 }
|
|
22
|
1909
|
|
32
|
1910 c->tcp_nodelay = NGX_TCP_NODELAY_SET;
|
|
0
|
1911 }
|
|
|
1912
|
|
|
1913 #if 0
|
|
4
|
1914 /* if ngx_http_request_t was freed then we need some other place */
|
|
0
|
1915 r->http_state = NGX_HTTP_KEEPALIVE_STATE;
|
|
|
1916 #endif
|
|
|
1917
|
|
|
1918 if (rev->ready) {
|
|
|
1919 ngx_http_keepalive_handler(rev);
|
|
|
1920 }
|
|
|
1921 }
|
|
|
1922
|
|
|
1923
|
|
50
|
1924 static void
|
|
|
1925 ngx_http_keepalive_handler(ngx_event_t *rev)
|
|
0
|
1926 {
|
|
50
|
1927 size_t size;
|
|
|
1928 ssize_t n;
|
|
|
1929 ngx_buf_t *b;
|
|
|
1930 ngx_connection_t *c;
|
|
0
|
1931
|
|
|
1932 c = rev->data;
|
|
|
1933
|
|
|
1934 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "http keepalive handler");
|
|
|
1935
|
|
|
1936 if (rev->timedout) {
|
|
|
1937 ngx_http_close_connection(c);
|
|
|
1938 return;
|
|
|
1939 }
|
|
|
1940
|
|
18
|
1941 #if (NGX_HAVE_KQUEUE)
|
|
0
|
1942
|
|
4
|
1943 if (ngx_event_flags & NGX_USE_KQUEUE_EVENT) {
|
|
136
|
1944 if (rev->pending_eof) {
|
|
32
|
1945 c->log->handler = NULL;
|
|
0
|
1946 ngx_log_error(NGX_LOG_INFO, c->log, rev->kq_errno,
|
|
10
|
1947 "kevent() reported that client %V closed "
|
|
32
|
1948 "keepalive connection", &c->addr_text);
|
|
22
|
1949 #if (NGX_HTTP_SSL)
|
|
|
1950 if (c->ssl) {
|
|
96
|
1951 c->ssl->no_send_shutdown = 1;
|
|
22
|
1952 }
|
|
|
1953 #endif
|
|
0
|
1954 ngx_http_close_connection(c);
|
|
|
1955 return;
|
|
|
1956 }
|
|
|
1957 }
|
|
|
1958
|
|
|
1959 #endif
|
|
|
1960
|
|
|
1961 b = c->buffer;
|
|
|
1962 size = b->end - b->start;
|
|
|
1963
|
|
|
1964 if (b->pos == NULL) {
|
|
4
|
1965
|
|
|
1966 /*
|
|
|
1967 * The c->buffer's memory was freed by ngx_http_set_keepalive().
|
|
|
1968 * However, the c->buffer->start and c->buffer->end were not changed
|
|
|
1969 * to keep the buffer size.
|
|
|
1970 */
|
|
|
1971
|
|
50
|
1972 b->pos = ngx_palloc(c->pool, size);
|
|
|
1973 if (b->pos == NULL) {
|
|
0
|
1974 ngx_http_close_connection(c);
|
|
|
1975 return;
|
|
|
1976 }
|
|
|
1977
|
|
|
1978 b->start = b->pos;
|
|
|
1979 b->last = b->pos;
|
|
|
1980 b->end = b->pos + size;
|
|
|
1981 }
|
|
|
1982
|
|
|
1983 /*
|
|
|
1984 * MSIE closes a keepalive connection with RST flag
|
|
|
1985 * so we ignore ECONNRESET here.
|
|
|
1986 */
|
|
|
1987
|
|
|
1988 c->log_error = NGX_ERROR_IGNORE_ECONNRESET;
|
|
|
1989 ngx_set_socket_errno(0);
|
|
|
1990
|
|
|
1991 n = c->recv(c, b->last, size);
|
|
|
1992 c->log_error = NGX_ERROR_INFO;
|
|
|
1993
|
|
|
1994 if (n == NGX_AGAIN) {
|
|
58
|
1995 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) {
|
|
24
|
1996 ngx_http_close_connection(c);
|
|
|
1997 }
|
|
|
1998
|
|
0
|
1999 return;
|
|
|
2000 }
|
|
|
2001
|
|
|
2002 if (n == NGX_ERROR) {
|
|
|
2003 ngx_http_close_connection(c);
|
|
|
2004 return;
|
|
|
2005 }
|
|
|
2006
|
|
32
|
2007 c->log->handler = NULL;
|
|
0
|
2008
|
|
|
2009 if (n == 0) {
|
|
|
2010 ngx_log_error(NGX_LOG_INFO, c->log, ngx_socket_errno,
|
|
32
|
2011 "client %V closed keepalive connection", &c->addr_text);
|
|
0
|
2012 ngx_http_close_connection(c);
|
|
|
2013 return;
|
|
|
2014 }
|
|
|
2015
|
|
|
2016 b->last += n;
|
|
32
|
2017
|
|
116
|
2018 #if (NGX_STAT_STUB)
|
|
|
2019 ngx_atomic_fetch_add(ngx_stat_reading, 1);
|
|
|
2020 #endif
|
|
|
2021
|
|
32
|
2022 c->log->handler = ngx_http_log_error;
|
|
|
2023 c->log->action = "reading client request line";
|
|
0
|
2024
|
|
|
2025 ngx_http_init_request(rev);
|
|
|
2026 }
|
|
|
2027
|
|
|
2028
|
|
50
|
2029 static void
|
|
|
2030 ngx_http_set_lingering_close(ngx_http_request_t *r)
|
|
126
|
2031 {
|
|
0
|
2032 ngx_event_t *rev, *wev;
|
|
|
2033 ngx_connection_t *c;
|
|
|
2034 ngx_http_core_loc_conf_t *clcf;
|
|
|
2035
|
|
|
2036 c = r->connection;
|
|
|
2037
|
|
|
2038 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
2039
|
|
|
2040 rev = c->read;
|
|
58
|
2041 rev->handler = ngx_http_lingering_close_handler;
|
|
0
|
2042
|
|
106
|
2043 r->lingering_time = ngx_time() + (time_t) (clcf->lingering_time / 1000);
|
|
0
|
2044 ngx_add_timer(rev, clcf->lingering_timeout);
|
|
|
2045
|
|
58
|
2046 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) {
|
|
0
|
2047 ngx_http_close_request(r, 0);
|
|
|
2048 return;
|
|
|
2049 }
|
|
|
2050
|
|
|
2051 wev = c->write;
|
|
58
|
2052 wev->handler = ngx_http_empty_handler;
|
|
0
|
2053
|
|
132
|
2054 if (wev->active && (ngx_event_flags & NGX_USE_LEVEL_EVENT)) {
|
|
|
2055 if (ngx_del_event(wev, NGX_WRITE_EVENT, 0) == NGX_ERROR) {
|
|
|
2056 ngx_http_close_request(r, 0);
|
|
|
2057 return;
|
|
0
|
2058 }
|
|
|
2059 }
|
|
|
2060
|
|
|
2061 if (ngx_shutdown_socket(c->fd, NGX_WRITE_SHUTDOWN) == -1) {
|
|
|
2062 ngx_connection_error(c, ngx_socket_errno,
|
|
|
2063 ngx_shutdown_socket_n " failed");
|
|
|
2064 ngx_http_close_request(r, 0);
|
|
|
2065 return;
|
|
|
2066 }
|
|
|
2067
|
|
|
2068 if (rev->ready) {
|
|
|
2069 ngx_http_lingering_close_handler(rev);
|
|
|
2070 }
|
|
|
2071 }
|
|
|
2072
|
|
|
2073
|
|
50
|
2074 static void
|
|
|
2075 ngx_http_lingering_close_handler(ngx_event_t *rev)
|
|
0
|
2076 {
|
|
|
2077 ssize_t n;
|
|
|
2078 ngx_msec_t timer;
|
|
|
2079 ngx_connection_t *c;
|
|
|
2080 ngx_http_request_t *r;
|
|
|
2081 ngx_http_core_loc_conf_t *clcf;
|
|
|
2082 u_char buffer[NGX_HTTP_LINGERING_BUFFER_SIZE];
|
|
|
2083
|
|
|
2084 c = rev->data;
|
|
|
2085 r = c->data;
|
|
|
2086
|
|
|
2087 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
|
2088 "http lingering close handler");
|
|
|
2089
|
|
|
2090 if (rev->timedout) {
|
|
126
|
2091 c->timedout = 1;
|
|
0
|
2092 ngx_http_close_request(r, 0);
|
|
|
2093 return;
|
|
|
2094 }
|
|
|
2095
|
|
|
2096 timer = r->lingering_time - ngx_time();
|
|
|
2097 if (timer <= 0) {
|
|
|
2098 ngx_http_close_request(r, 0);
|
|
|
2099 return;
|
|
|
2100 }
|
|
|
2101
|
|
|
2102 do {
|
|
|
2103 n = c->recv(c, buffer, NGX_HTTP_LINGERING_BUFFER_SIZE);
|
|
|
2104
|
|
|
2105 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0, "lingering read: %d", n);
|
|
|
2106
|
|
|
2107 if (n == NGX_ERROR || n == 0) {
|
|
|
2108 ngx_http_close_request(r, 0);
|
|
|
2109 return;
|
|
|
2110 }
|
|
|
2111
|
|
|
2112 } while (rev->ready);
|
|
|
2113
|
|
58
|
2114 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) {
|
|
26
|
2115 ngx_http_close_request(r, 0);
|
|
24
|
2116 return;
|
|
|
2117 }
|
|
|
2118
|
|
0
|
2119 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
2120
|
|
|
2121 timer *= 1000;
|
|
|
2122
|
|
|
2123 if (timer > clcf->lingering_timeout) {
|
|
|
2124 timer = clcf->lingering_timeout;
|
|
|
2125 }
|
|
|
2126
|
|
|
2127 ngx_add_timer(rev, timer);
|
|
|
2128 }
|
|
|
2129
|
|
|
2130
|
|
50
|
2131 void
|
|
|
2132 ngx_http_empty_handler(ngx_event_t *wev)
|
|
0
|
2133 {
|
|
|
2134 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, wev->log, 0, "http empty handler");
|
|
|
2135
|
|
|
2136 return;
|
|
|
2137 }
|
|
|
2138
|
|
|
2139
|
|
58
|
2140 void
|
|
|
2141 ngx_http_request_empty_handler(ngx_http_request_t *r)
|
|
|
2142 {
|
|
|
2143 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
132
|
2144 "http request empty handler");
|
|
58
|
2145
|
|
|
2146 return;
|
|
|
2147 }
|
|
|
2148
|
|
|
2149
|
|
50
|
2150 ngx_int_t
|
|
130
|
2151 ngx_http_send_special(ngx_http_request_t *r, ngx_uint_t flags)
|
|
0
|
2152 {
|
|
|
2153 ngx_buf_t *b;
|
|
|
2154 ngx_chain_t out;
|
|
|
2155
|
|
50
|
2156 b = ngx_calloc_buf(r->pool);
|
|
|
2157 if (b == NULL) {
|
|
0
|
2158 return NGX_ERROR;
|
|
|
2159 }
|
|
|
2160
|
|
130
|
2161 if (flags & NGX_HTTP_LAST) {
|
|
|
2162 b->last_buf = 1;
|
|
|
2163 }
|
|
|
2164
|
|
|
2165 if (flags & NGX_HTTP_FLUSH) {
|
|
|
2166 b->flush = 1;
|
|
|
2167 }
|
|
|
2168
|
|
0
|
2169 out.buf = b;
|
|
|
2170 out.next = NULL;
|
|
|
2171
|
|
|
2172 return ngx_http_output_filter(r, &out);
|
|
|
2173 }
|
|
|
2174
|
|
|
2175
|
|
162
|
2176 static ngx_int_t
|
|
|
2177 ngx_http_post_action(ngx_http_request_t *r)
|
|
|
2178 {
|
|
|
2179 ngx_http_core_loc_conf_t *clcf;
|
|
|
2180
|
|
|
2181 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
2182
|
|
|
2183 if (clcf->post_action.data == NULL) {
|
|
|
2184 return NGX_DECLINED;
|
|
|
2185 }
|
|
|
2186
|
|
172
|
2187 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
2188 "post action: \"%V\"", &clcf->post_action);
|
|
|
2189
|
|
162
|
2190 r->http_version = NGX_HTTP_VERSION_9;
|
|
|
2191 r->header_only = 1;
|
|
178
|
2192 r->post_action = 1;
|
|
162
|
2193
|
|
|
2194 ngx_http_internal_redirect(r, &clcf->post_action, NULL);
|
|
|
2195
|
|
|
2196 return NGX_OK;
|
|
|
2197 }
|
|
|
2198
|
|
|
2199
|
|
|
2200 static void
|
|
58
|
2201 ngx_http_close_request(ngx_http_request_t *r, ngx_int_t error)
|
|
0
|
2202 {
|
|
188
|
2203 ngx_connection_t *c;
|
|
118
|
2204
|
|
|
2205 c = r->connection;
|
|
188
|
2206
|
|
|
2207 ngx_http_request_done(r->main, error);
|
|
118
|
2208 ngx_http_close_connection(c);
|
|
|
2209 }
|
|
|
2210
|
|
|
2211
|
|
162
|
2212 static void
|
|
118
|
2213 ngx_http_request_done(ngx_http_request_t *r, ngx_int_t error)
|
|
|
2214 {
|
|
|
2215 ngx_log_t *log;
|
|
130
|
2216 ngx_uint_t i, n;
|
|
118
|
2217 struct linger linger;
|
|
188
|
2218 ngx_http_cleanup_t *cln;
|
|
118
|
2219 ngx_http_log_ctx_t *ctx;
|
|
130
|
2220 ngx_http_handler_pt *log_handler;
|
|
118
|
2221 ngx_http_core_loc_conf_t *clcf;
|
|
|
2222 ngx_http_core_main_conf_t *cmcf;
|
|
0
|
2223
|
|
|
2224 log = r->connection->log;
|
|
|
2225
|
|
|
2226 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, log, 0, "http close request");
|
|
|
2227
|
|
|
2228 if (r->pool == NULL) {
|
|
80
|
2229 ngx_log_error(NGX_LOG_ALERT, log, 0, "http request already closed");
|
|
0
|
2230 return;
|
|
|
2231 }
|
|
|
2232
|
|
188
|
2233 for (cln = r->cleanup; cln; cln = cln->next) {
|
|
|
2234 if (cln->handler) {
|
|
|
2235 cln->handler(cln->data);
|
|
|
2236 }
|
|
|
2237 }
|
|
|
2238
|
|
0
|
2239 #if (NGX_STAT_STUB)
|
|
116
|
2240
|
|
0
|
2241 if (r->stat_reading) {
|
|
110
|
2242 ngx_atomic_fetch_add(ngx_stat_reading, -1);
|
|
0
|
2243 }
|
|
|
2244
|
|
|
2245 if (r->stat_writing) {
|
|
110
|
2246 ngx_atomic_fetch_add(ngx_stat_writing, -1);
|
|
0
|
2247 }
|
|
116
|
2248
|
|
0
|
2249 #endif
|
|
|
2250
|
|
|
2251 if (error && r->headers_out.status == 0) {
|
|
|
2252 r->headers_out.status = error;
|
|
|
2253 }
|
|
|
2254
|
|
118
|
2255 cmcf = ngx_http_get_module_main_conf(r, ngx_http_core_module);
|
|
|
2256
|
|
130
|
2257 log_handler = cmcf->phases[NGX_HTTP_LOG_PHASE].handlers.elts;
|
|
|
2258 n = cmcf->phases[NGX_HTTP_LOG_PHASE].handlers.nelts;
|
|
|
2259 for (i = 0; i < n; i++) {
|
|
|
2260 log_handler[i](r);
|
|
118
|
2261 }
|
|
0
|
2262
|
|
|
2263 if (r->connection->timedout) {
|
|
|
2264 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
2265
|
|
|
2266 if (clcf->reset_timedout_connection) {
|
|
58
|
2267 linger.l_onoff = 1;
|
|
|
2268 linger.l_linger = 0;
|
|
0
|
2269
|
|
|
2270 if (setsockopt(r->connection->fd, SOL_SOCKET, SO_LINGER,
|
|
58
|
2271 (const void *) &linger, sizeof(struct linger)) == -1)
|
|
0
|
2272 {
|
|
|
2273 ngx_log_error(NGX_LOG_ALERT, log, ngx_socket_errno,
|
|
|
2274 "setsockopt(SO_LINGER) failed");
|
|
|
2275 }
|
|
|
2276 }
|
|
|
2277 }
|
|
|
2278
|
|
58
|
2279 /* the various request strings were allocated from r->pool */
|
|
0
|
2280 ctx = log->data;
|
|
10
|
2281 ctx->request = NULL;
|
|
0
|
2282
|
|
|
2283 r->request_line.len = 0;
|
|
|
2284
|
|
132
|
2285 r->connection->destroyed = 1;
|
|
|
2286
|
|
0
|
2287 ngx_destroy_pool(r->pool);
|
|
|
2288 }
|
|
|
2289
|
|
|
2290
|
|
80
|
2291 static void
|
|
50
|
2292 ngx_http_close_connection(ngx_connection_t *c)
|
|
0
|
2293 {
|
|
28
|
2294 ngx_pool_t *pool;
|
|
|
2295
|
|
0
|
2296 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
|
2297 "close http connection: %d", c->fd);
|
|
|
2298
|
|
88
|
2299 #if (NGX_HTTP_SSL)
|
|
2
|
2300
|
|
|
2301 if (c->ssl) {
|
|
|
2302 if (ngx_ssl_shutdown(c) == NGX_AGAIN) {
|
|
126
|
2303 c->ssl->handler = ngx_http_close_connection;
|
|
2
|
2304 return;
|
|
|
2305 }
|
|
|
2306 }
|
|
|
2307
|
|
|
2308 #endif
|
|
|
2309
|
|
0
|
2310 #if (NGX_STAT_STUB)
|
|
110
|
2311 ngx_atomic_fetch_add(ngx_stat_active, -1);
|
|
0
|
2312 #endif
|
|
|
2313
|
|
132
|
2314 c->destroyed = 1;
|
|
|
2315
|
|
28
|
2316 pool = c->pool;
|
|
|
2317
|
|
0
|
2318 ngx_close_connection(c);
|
|
28
|
2319
|
|
50
|
2320 ngx_destroy_pool(pool);
|
|
0
|
2321 }
|
|
|
2322
|
|
|
2323
|
|
50
|
2324 static u_char *
|
|
|
2325 ngx_http_log_error(ngx_log_t *log, u_char *buf, size_t len)
|
|
0
|
2326 {
|
|
32
|
2327 u_char *p;
|
|
54
|
2328 ngx_http_request_t *r;
|
|
32
|
2329 ngx_http_log_ctx_t *ctx;
|
|
10
|
2330
|
|
32
|
2331 if (log->action) {
|
|
58
|
2332 p = ngx_snprintf(buf, len, " while %s", log->action);
|
|
10
|
2333 len -= p - buf;
|
|
54
|
2334 buf = p;
|
|
10
|
2335 }
|
|
|
2336
|
|
58
|
2337 ctx = log->data;
|
|
|
2338
|
|
54
|
2339 p = ngx_snprintf(buf, len, ", client: %V", ctx->client);
|
|
58
|
2340 len -= p - buf;
|
|
54
|
2341
|
|
|
2342 r = ctx->request;
|
|
|
2343
|
|
58
|
2344 if (r) {
|
|
|
2345 return r->log_handler(r, p, len);
|
|
0
|
2346 }
|
|
10
|
2347
|
|
58
|
2348 return p;
|
|
|
2349 }
|
|
|
2350
|
|
|
2351
|
|
|
2352 static u_char *
|
|
|
2353 ngx_http_log_error_handler(ngx_http_request_t *r, u_char *buf, size_t len)
|
|
|
2354 {
|
|
|
2355 u_char *p;
|
|
54
|
2356
|
|
|
2357 if (r->server_name.data) {
|
|
|
2358 p = ngx_snprintf(buf, len, ", server: %V", &r->server_name);
|
|
52
|
2359 len -= p - buf;
|
|
54
|
2360 buf = p;
|
|
52
|
2361 }
|
|
|
2362
|
|
54
|
2363 if (r->unparsed_uri.data) {
|
|
|
2364 p = ngx_snprintf(buf, len, ", URL: \"%V\"", &r->unparsed_uri);
|
|
|
2365 len -= p - buf;
|
|
|
2366 buf = p;
|
|
|
2367
|
|
|
2368 } else {
|
|
|
2369 if (r->request_line.data == NULL && r->request_start) {
|
|
|
2370 for (p = r->request_start; p < r->header_in->last; p++) {
|
|
|
2371 if (*p == CR || *p == LF) {
|
|
|
2372 break;
|
|
|
2373 }
|
|
|
2374 }
|
|
|
2375
|
|
|
2376 r->request_line.len = p - r->request_start;
|
|
|
2377 r->request_line.data = r->request_start;
|
|
|
2378 }
|
|
|
2379
|
|
|
2380 if (r->request_line.len) {
|
|
|
2381 p = ngx_snprintf(buf, len, ", request: \"%V\"", &r->request_line);
|
|
|
2382 len -= p - buf;
|
|
|
2383 buf = p;
|
|
|
2384 }
|
|
10
|
2385 }
|
|
|
2386
|
|
54
|
2387 return ngx_http_log_error_info(r, buf, len);
|
|
0
|
2388 }
|
|
54
|
2389
|
|
|
2390
|
|
|
2391 u_char *
|
|
|
2392 ngx_http_log_error_info(ngx_http_request_t *r, u_char *buf, size_t len)
|
|
|
2393 {
|
|
|
2394 u_char *p;
|
|
|
2395
|
|
|
2396 if (r->headers_in.host) {
|
|
|
2397 p = ngx_snprintf(buf, len, ", host: \"%V\"",
|
|
|
2398 &r->headers_in.host->value);
|
|
|
2399 len -= p - buf;
|
|
|
2400 buf = p;
|
|
|
2401 }
|
|
|
2402
|
|
|
2403 if (r->headers_in.referer) {
|
|
|
2404 p = ngx_snprintf(buf, len, ", referrer: \"%V\"",
|
|
|
2405 &r->headers_in.referer->value);
|
|
|
2406 buf = p;
|
|
|
2407 }
|
|
|
2408
|
|
|
2409 return buf;
|
|
|
2410 }
|
