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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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58
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136 { ngx_string("Cookie"), 0, ngx_http_process_cookie },
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137
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138 { ngx_null_string, 0, NULL }
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0
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139 };
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140
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141
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50
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142 void
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143 ngx_http_init_connection(ngx_connection_t *c)
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0
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144 {
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145 ngx_event_t *rev;
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146 ngx_http_log_ctx_t *ctx;
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147
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50
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148 ctx = ngx_palloc(c->pool, sizeof(ngx_http_log_ctx_t));
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149 if (ctx == NULL) {
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0
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150 ngx_http_close_connection(c);
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151 return;
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152 }
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153
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10
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154 ctx->client = &c->addr_text;
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155 ctx->request = NULL;
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32
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156
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157 c->log->connection = c->number;
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158 c->log->handler = ngx_http_log_error;
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0
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159 c->log->data = ctx;
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32
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160 c->log->action = "reading client request line";
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161
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0
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162 c->log_error = NGX_ERROR_INFO;
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163
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164 rev = c->read;
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58
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165 rev->handler = ngx_http_init_request;
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118
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166 c->write->handler = ngx_http_empty_handler;
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0
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167
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116
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168 #if (NGX_STAT_STUB)
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169 ngx_atomic_fetch_add(ngx_stat_reading, 1);
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170 #endif
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171
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0
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172 if (rev->ready) {
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173 /* the deferred accept(), rtsig, aio, iocp */
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174
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160
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175 if (ngx_use_accept_mutex) {
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112
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176 ngx_post_event(rev, &ngx_posted_events);
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0
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177 return;
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178 }
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179
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180 ngx_http_init_request(rev);
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181 return;
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182 }
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183
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184 ngx_add_timer(rev, c->listening->post_accept_timeout);
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185
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186 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) {
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116
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187 #if (NGX_STAT_STUB)
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188 ngx_atomic_fetch_add(ngx_stat_reading, -1);
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189 #endif
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0
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190 ngx_http_close_connection(c);
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191 return;
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192 }
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193 }
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194
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195
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50
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196 static
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197 void ngx_http_init_request(ngx_event_t *rev)
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0
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198 {
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122
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199 ngx_uint_t i;
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200 socklen_t len;
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201 struct sockaddr_in sin;
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202 ngx_connection_t *c;
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203 ngx_http_request_t *r;
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142
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204 ngx_http_in_port_t *hip;
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205 ngx_http_in_addr_t *hia;
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122
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206 ngx_http_log_ctx_t *ctx;
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207 ngx_http_connection_t *hc;
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208 ngx_http_core_srv_conf_t *cscf;
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209 ngx_http_core_loc_conf_t *clcf;
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210 ngx_http_core_main_conf_t *cmcf;
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0
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211 #if (NGX_HTTP_SSL)
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122
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212 ngx_http_ssl_srv_conf_t *sscf;
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0
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213 #endif
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214
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116
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215 #if (NGX_STAT_STUB)
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216 ngx_atomic_fetch_add(ngx_stat_reading, -1);
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217 #endif
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218
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0
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219 c = rev->data;
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220
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221 if (rev->timedout) {
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222 ngx_log_error(NGX_LOG_INFO, c->log, NGX_ETIMEDOUT, "client timed out");
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223
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224 ngx_http_close_connection(c);
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225 return;
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226 }
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227
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228 hc = c->data;
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229
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116
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230 if (hc == NULL) {
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50
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231 hc = ngx_pcalloc(c->pool, sizeof(ngx_http_connection_t));
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232 if (hc == NULL) {
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0
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233 ngx_http_close_connection(c);
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234 return;
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235 }
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236 }
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237
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238 r = hc->request;
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239
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240 if (r) {
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241 ngx_memzero(r, sizeof(ngx_http_request_t));
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242
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243 r->pipeline = hc->pipeline;
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244
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245 if (hc->nbusy) {
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246 r->header_in = hc->busy[0];
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247 }
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248
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249 } else {
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50
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250 r = ngx_pcalloc(c->pool, sizeof(ngx_http_request_t));
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251 if (r == NULL) {
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0
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252 ngx_http_close_connection(c);
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253 return;
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254 }
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255
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256 hc->request = r;
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257 }
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258
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259 c->data = r;
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260 r->http_connection = hc;
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261
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262 c->sent = 0;
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263 r->signature = NGX_HTTP_MODULE;
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264
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265 /* find the server configuration for the address:port */
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266
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267 /* AF_INET only */
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268
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142
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269 hip = c->servers;
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270 hia = hip->addrs;
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271
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272 r->port = hip->port;
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273 r->port_text = &hip->port_text;
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0
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274
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275 i = 0;
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276
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142
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277 if (hip->naddrs > 1) {
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0
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278
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279 /*
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280 * There are several addresses on this port and one of them
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281 * is the "*:port" wildcard so getsockname() is needed to determine
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282 * the server address.
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283 *
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284 * AcceptEx() already gave this address.
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285 */
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286
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10
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287 #if (NGX_WIN32)
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0
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288 if (c->local_sockaddr) {
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289 r->in_addr =
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290 ((struct sockaddr_in *) c->local_sockaddr)->sin_addr.s_addr;
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291
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28
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292 } else
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0
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293 #endif
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28
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294 {
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0
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295 len = sizeof(struct sockaddr_in);
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28
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296 if (getsockname(c->fd, (struct sockaddr *) &sin, &len) == -1) {
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0
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297 ngx_connection_error(c, ngx_socket_errno,
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298 "getsockname() failed");
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299 ngx_http_close_connection(c);
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300 return;
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301 }
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302
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28
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303 r->in_addr = sin.sin_addr.s_addr;
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0
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304 }
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305
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306 /* the last in_port->addrs address is "*" */
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307
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142
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308 for ( /* void */ ; i < hip->naddrs - 1; i++) {
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309 if (hia[i].addr == r->in_addr) {
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0
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310 break;
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311 }
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312 }
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313
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314 } else {
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142
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315 r->in_addr = hia[0].addr;
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0
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316 }
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317
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142
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318 r->virtual_names = hia[i].virtual_names;
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0
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319
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320 /* the default server configuration for the address:port */
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142
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321 cscf = hia[i].core_srv_conf;
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0
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322
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323 r->main_conf = cscf->ctx->main_conf;
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324 r->srv_conf = cscf->ctx->srv_conf;
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325 r->loc_conf = cscf->ctx->loc_conf;
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326
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142
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327 r->server_name = cscf->server_name;
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328
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58
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329 rev->handler = ngx_http_process_request_line;
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0
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330
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331 #if (NGX_HTTP_SSL)
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332
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333 sscf = ngx_http_get_module_srv_conf(r, ngx_http_ssl_module);
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334 if (sscf->enable) {
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335
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336 if (c->ssl == NULL) {
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96
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337 if (ngx_ssl_create_connection(&sscf->ssl, c, NGX_SSL_BUFFER)
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56
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338 == NGX_ERROR)
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0
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339 {
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340 ngx_http_close_connection(c);
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341 return;
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342 }
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343
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58
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344 rev->handler = ngx_http_ssl_handshake;
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0
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345 }
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346
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62
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347 r->main_filter_need_in_memory = 1;
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0
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348 }
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349
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350 #endif
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351
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352 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
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353 c->log->file = clcf->err_log->file;
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354 if (!(c->log->log_level & NGX_LOG_DEBUG_CONNECTION)) {
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355 c->log->log_level = clcf->err_log->log_level;
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356 }
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357
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358 if (c->buffer == NULL) {
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359 c->buffer = ngx_create_temp_buf(c->pool,
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360 cscf->client_header_buffer_size);
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361 if (c->buffer == NULL) {
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362 ngx_http_close_connection(c);
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363 return;
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364 }
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365 }
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366
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367 if (r->header_in == NULL) {
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368 r->header_in = c->buffer;
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369 }
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370
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50
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371 r->pool = ngx_create_pool(cscf->request_pool_size, c->log);
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372 if (r->pool == NULL) {
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0
|
373 ngx_http_close_connection(c);
|
|
|
374 return;
|
|
|
375 }
|
|
|
376
|
|
|
377
|
|
|
378 if (ngx_list_init(&r->headers_out.headers, r->pool, 20,
|
|
130
|
379 sizeof(ngx_table_elt_t))
|
|
|
380 == NGX_ERROR)
|
|
0
|
381 {
|
|
|
382 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
383 return;
|
|
|
384 }
|
|
|
385
|
|
|
386 r->ctx = ngx_pcalloc(r->pool, sizeof(void *) * ngx_http_max_module);
|
|
|
387 if (r->ctx == NULL) {
|
|
|
388 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
389 return;
|
|
|
390 }
|
|
|
391
|
|
122
|
392 cmcf = ngx_http_get_module_main_conf(r, ngx_http_core_module);
|
|
|
393
|
|
|
394 r->variables = ngx_pcalloc(r->pool, cmcf->variables.nelts
|
|
|
395 * sizeof(ngx_http_variable_value_t));
|
|
|
396 if (r->variables == NULL) {
|
|
|
397 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
398 return;
|
|
|
399 }
|
|
|
400
|
|
0
|
401 c->single_connection = 1;
|
|
132
|
402 c->destroyed = 0;
|
|
|
403
|
|
0
|
404 r->connection = c;
|
|
|
405
|
|
102
|
406 r->main = r;
|
|
|
407
|
|
46
|
408 r->start_time = ngx_time();
|
|
|
409
|
|
180
|
410 r->method = NGX_HTTP_UNKNOWN;
|
|
|
411
|
|
0
|
412 r->headers_in.content_length_n = -1;
|
|
|
413 r->headers_in.keep_alive_n = -1;
|
|
|
414 r->headers_out.content_length_n = -1;
|
|
|
415 r->headers_out.last_modified_time = -1;
|
|
|
416
|
|
|
417 r->http_state = NGX_HTTP_READING_REQUEST_STATE;
|
|
|
418
|
|
54
|
419 ctx = c->log->data;
|
|
|
420 ctx->request = r;
|
|
58
|
421 r->log_handler = ngx_http_log_error_handler;
|
|
54
|
422
|
|
0
|
423 #if (NGX_STAT_STUB)
|
|
110
|
424 ngx_atomic_fetch_add(ngx_stat_reading, 1);
|
|
26
|
425 r->stat_reading = 1;
|
|
110
|
426 ngx_atomic_fetch_add(ngx_stat_requests, 1);
|
|
0
|
427 #endif
|
|
|
428
|
|
58
|
429 rev->handler(rev);
|
|
0
|
430 }
|
|
|
431
|
|
|
432
|
|
|
433 #if (NGX_HTTP_SSL)
|
|
|
434
|
|
50
|
435 static void
|
|
|
436 ngx_http_ssl_handshake(ngx_event_t *rev)
|
|
0
|
437 {
|
|
10
|
438 u_char buf[1];
|
|
|
439 ssize_t n;
|
|
0
|
440 ngx_int_t rc;
|
|
|
441 ngx_connection_t *c;
|
|
|
442 ngx_http_request_t *r;
|
|
|
443
|
|
|
444 c = rev->data;
|
|
|
445 r = c->data;
|
|
|
446
|
|
|
447 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, rev->log, 0,
|
|
|
448 "http check ssl handshake");
|
|
|
449
|
|
|
450 if (rev->timedout) {
|
|
54
|
451 ngx_log_error(NGX_LOG_INFO, c->log, NGX_ETIMEDOUT, "client timed out");
|
|
|
452 c->timedout = 1;
|
|
|
453 ngx_http_close_request(r, NGX_HTTP_REQUEST_TIME_OUT);
|
|
0
|
454 return;
|
|
|
455 }
|
|
|
456
|
|
132
|
457 n = recv(c->fd, (char *) buf, 1, MSG_PEEK);
|
|
0
|
458
|
|
|
459 if (n == -1 && ngx_socket_errno == NGX_EAGAIN) {
|
|
|
460 return;
|
|
|
461 }
|
|
|
462
|
|
|
463 if (n == 1) {
|
|
|
464 if (buf[0] == 0x80 /* SSLv2 */ || buf[0] == 0x16 /* SSLv3/TLSv1 */) {
|
|
|
465 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, rev->log, 0,
|
|
10
|
466 "https ssl handshake: 0x%02Xd", buf[0]);
|
|
0
|
467
|
|
|
468 rc = ngx_ssl_handshake(c);
|
|
|
469
|
|
96
|
470 if (rc == NGX_AGAIN) {
|
|
|
471 c->ssl->handler = ngx_http_ssl_handshake_handler;
|
|
0
|
472 return;
|
|
|
473 }
|
|
|
474
|
|
96
|
475 ngx_http_ssl_handshake_handler(c);
|
|
|
476
|
|
|
477 return;
|
|
0
|
478
|
|
|
479 } else {
|
|
|
480 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, rev->log, 0,
|
|
|
481 "plain http");
|
|
|
482
|
|
|
483 r->plain_http = 1;
|
|
|
484 }
|
|
|
485 }
|
|
|
486
|
|
58
|
487 rev->handler = ngx_http_process_request_line;
|
|
0
|
488 ngx_http_process_request_line(rev);
|
|
|
489 }
|
|
|
490
|
|
96
|
491
|
|
|
492 static void
|
|
|
493 ngx_http_ssl_handshake_handler(ngx_connection_t *c)
|
|
|
494 {
|
|
|
495 ngx_http_request_t *r;
|
|
|
496
|
|
|
497 if (c->ssl->handshaked) {
|
|
|
498
|
|
|
499 /*
|
|
|
500 * The majority of browsers do not send the "close notify" alert.
|
|
|
501 * Among them are MSIE, old Mozilla, Netscape 4, Konqueror,
|
|
|
502 * and Links. And what is more, MSIE ignores the server's alert.
|
|
|
503 *
|
|
|
504 * Opera and recent Mozilla send the alert.
|
|
|
505 */
|
|
|
506
|
|
|
507 c->ssl->no_wait_shutdown = 1;
|
|
|
508
|
|
|
509 c->read->handler = ngx_http_process_request_line;
|
|
|
510 /* STUB: epoll edge */ c->write->handler = ngx_http_empty_handler;
|
|
|
511
|
|
|
512 ngx_http_process_request_line(c->read);
|
|
|
513
|
|
|
514 return;
|
|
|
515 }
|
|
|
516
|
|
|
517 r = c->data;
|
|
|
518
|
|
|
519 ngx_http_close_request(r, NGX_HTTP_BAD_REQUEST);
|
|
|
520
|
|
|
521 return;
|
|
|
522 }
|
|
|
523
|
|
|
524
|
|
0
|
525 #endif
|
|
|
526
|
|
|
527
|
|
50
|
528 static void
|
|
|
529 ngx_http_process_request_line(ngx_event_t *rev)
|
|
0
|
530 {
|
|
|
531 ssize_t n;
|
|
|
532 ngx_int_t rc, rv;
|
|
|
533 ngx_connection_t *c;
|
|
|
534 ngx_http_request_t *r;
|
|
|
535 ngx_http_log_ctx_t *ctx;
|
|
|
536
|
|
|
537 c = rev->data;
|
|
|
538 r = c->data;
|
|
|
539
|
|
|
540 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, rev->log, 0,
|
|
|
541 "http process request line");
|
|
|
542
|
|
|
543 if (rev->timedout) {
|
|
54
|
544 ngx_log_error(NGX_LOG_INFO, c->log, NGX_ETIMEDOUT, "client timed out");
|
|
|
545 c->timedout = 1;
|
|
|
546 ngx_http_close_request(r, NGX_HTTP_REQUEST_TIME_OUT);
|
|
0
|
547 return;
|
|
|
548 }
|
|
|
549
|
|
|
550 rc = NGX_AGAIN;
|
|
|
551
|
|
|
552 for ( ;; ) {
|
|
|
553
|
|
|
554 if (rc == NGX_AGAIN) {
|
|
|
555 n = ngx_http_read_request_header(r);
|
|
|
556
|
|
|
557 if (n == NGX_AGAIN || n == NGX_ERROR) {
|
|
|
558 return;
|
|
|
559 }
|
|
|
560 }
|
|
|
561
|
|
|
562 rc = ngx_http_parse_request_line(r, r->header_in);
|
|
|
563
|
|
|
564 if (rc == NGX_OK) {
|
|
|
565
|
|
|
566 /* the request line has been parsed successfully */
|
|
|
567
|
|
10
|
568 r->request_line.len = r->request_end - r->request_start;
|
|
|
569 r->request_line.data = r->request_start;
|
|
|
570
|
|
0
|
571
|
|
|
572 if (r->args_start) {
|
|
|
573 r->uri.len = r->args_start - 1 - r->uri_start;
|
|
|
574 } else {
|
|
|
575 r->uri.len = r->uri_end - r->uri_start;
|
|
|
576 }
|
|
|
577
|
|
18
|
578
|
|
2
|
579 if (r->complex_uri || r->quoted_uri) {
|
|
10
|
580
|
|
50
|
581 r->uri.data = ngx_palloc(r->pool, r->uri.len + 1);
|
|
|
582 if (r->uri.data == NULL) {
|
|
10
|
583 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
584 return;
|
|
|
585 }
|
|
|
586
|
|
0
|
587 rc = ngx_http_parse_complex_uri(r);
|
|
|
588
|
|
54
|
589 if (rc == NGX_HTTP_PARSE_INVALID_REQUEST) {
|
|
|
590 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
|
591 "client sent invalid request");
|
|
|
592 ngx_http_finalize_request(r, NGX_HTTP_BAD_REQUEST);
|
|
0
|
593 return;
|
|
|
594 }
|
|
|
595
|
|
|
596 } else {
|
|
10
|
597 r->uri.data = r->uri_start;
|
|
0
|
598 }
|
|
|
599
|
|
18
|
600
|
|
10
|
601 r->unparsed_uri.len = r->uri_end - r->uri_start;
|
|
|
602 r->unparsed_uri.data = r->uri_start;
|
|
|
603
|
|
0
|
604
|
|
58
|
605 r->method_name.len = r->method_end - r->request_start + 1;
|
|
|
606 r->method_name.data = r->request_line.data;
|
|
0
|
607
|
|
10
|
608
|
|
28
|
609 if (r->http_protocol.data) {
|
|
|
610 r->http_protocol.len = r->request_end - r->http_protocol.data;
|
|
|
611 }
|
|
|
612
|
|
|
613
|
|
0
|
614 if (r->uri_ext) {
|
|
|
615 if (r->args_start) {
|
|
|
616 r->exten.len = r->args_start - 1 - r->uri_ext;
|
|
|
617 } else {
|
|
|
618 r->exten.len = r->uri_end - r->uri_ext;
|
|
|
619 }
|
|
|
620
|
|
10
|
621 r->exten.data = r->uri_ext;
|
|
0
|
622 }
|
|
|
623
|
|
10
|
624
|
|
0
|
625 if (r->args_start && r->uri_end > r->args_start) {
|
|
|
626 r->args.len = r->uri_end - r->args_start;
|
|
10
|
627 r->args.data = r->args_start;
|
|
0
|
628 }
|
|
|
629
|
|
10
|
630
|
|
|
631 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
|
632 "http request line: \"%V\"", &r->request_line);
|
|
|
633
|
|
0
|
634 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
10
|
635 "http uri: \"%V\"", &r->uri);
|
|
0
|
636
|
|
|
637 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
10
|
638 "http args: \"%V\"", &r->args);
|
|
0
|
639
|
|
|
640 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
10
|
641 "http exten: \"%V\"", &r->exten);
|
|
|
642
|
|
0
|
643 if (r->http_version < NGX_HTTP_VERSION_10) {
|
|
86
|
644
|
|
|
645 if (rev->timer_set) {
|
|
|
646 ngx_del_timer(rev);
|
|
|
647 }
|
|
|
648
|
|
|
649 #if (NGX_STAT_STUB)
|
|
110
|
650 ngx_atomic_fetch_add(ngx_stat_reading, -1);
|
|
86
|
651 r->stat_reading = 0;
|
|
110
|
652 ngx_atomic_fetch_add(ngx_stat_writing, 1);
|
|
86
|
653 r->stat_writing = 1;
|
|
|
654 #endif
|
|
|
655
|
|
|
656 rev->handler = ngx_http_request_handler;
|
|
|
657 c->write->handler = ngx_http_request_handler;
|
|
58
|
658 r->read_event_handler = ngx_http_block_read;
|
|
86
|
659
|
|
0
|
660 ngx_http_handler(r);
|
|
86
|
661
|
|
0
|
662 return;
|
|
|
663 }
|
|
|
664
|
|
|
665
|
|
|
666 if (ngx_list_init(&r->headers_in.headers, r->pool, 20,
|
|
130
|
667 sizeof(ngx_table_elt_t))
|
|
|
668 == NGX_ERROR)
|
|
0
|
669 {
|
|
|
670 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
671 return;
|
|
|
672 }
|
|
|
673
|
|
|
674
|
|
48
|
675 if (ngx_array_init(&r->headers_in.cookies, r->pool, 2,
|
|
130
|
676 sizeof(ngx_table_elt_t *))
|
|
|
677 == NGX_ERROR)
|
|
0
|
678 {
|
|
|
679 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
680 return;
|
|
|
681 }
|
|
|
682
|
|
32
|
683 c->log->action = "reading client request headers";
|
|
0
|
684
|
|
58
|
685 rev->handler = ngx_http_process_request_headers;
|
|
0
|
686 ngx_http_process_request_headers(rev);
|
|
|
687
|
|
|
688 return;
|
|
54
|
689 }
|
|
|
690
|
|
|
691 if (rc != NGX_AGAIN) {
|
|
0
|
692
|
|
|
693 /* there was error while a request line parsing */
|
|
|
694
|
|
54
|
695 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
|
696 ngx_http_client_errors[rc - NGX_HTTP_CLIENT_ERROR]);
|
|
|
697 ngx_http_finalize_request(r, NGX_HTTP_BAD_REQUEST);
|
|
0
|
698 return;
|
|
|
699 }
|
|
|
700
|
|
|
701 /* NGX_AGAIN: a request line parsing is still incomplete */
|
|
|
702
|
|
|
703 if (r->header_in->pos == r->header_in->end) {
|
|
|
704
|
|
|
705 rv = ngx_http_alloc_large_header_buffer(r, 1);
|
|
|
706
|
|
|
707 if (rv == NGX_ERROR) {
|
|
|
708 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
709 return;
|
|
|
710 }
|
|
|
711
|
|
|
712 if (rv == NGX_DECLINED) {
|
|
54
|
713 ctx = c->log->data;
|
|
|
714 ctx->request = r;
|
|
|
715
|
|
|
716 r->request_line.len = r->header_in->end - r->request_start;
|
|
|
717 r->request_line.data = r->request_start;
|
|
|
718
|
|
|
719 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
|
720 "client sent too long URI");
|
|
|
721 ngx_http_finalize_request(r, NGX_HTTP_REQUEST_URI_TOO_LARGE);
|
|
0
|
722 return;
|
|
|
723 }
|
|
|
724 }
|
|
|
725 }
|
|
|
726 }
|
|
|
727
|
|
|
728
|
|
50
|
729 static void
|
|
|
730 ngx_http_process_request_headers(ngx_event_t *rev)
|
|
0
|
731 {
|
|
56
|
732 ssize_t n;
|
|
|
733 ngx_int_t rc, rv;
|
|
|
734 ngx_uint_t key;
|
|
|
735 ngx_str_t header;
|
|
58
|
736 ngx_table_elt_t *h;
|
|
56
|
737 ngx_connection_t *c;
|
|
|
738 ngx_http_header_t *hh;
|
|
|
739 ngx_http_request_t *r;
|
|
60
|
740 ngx_http_core_srv_conf_t *cscf;
|
|
56
|
741 ngx_http_core_main_conf_t *cmcf;
|
|
0
|
742
|
|
|
743 c = rev->data;
|
|
|
744 r = c->data;
|
|
|
745
|
|
|
746 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, rev->log, 0,
|
|
|
747 "http process request header line");
|
|
|
748
|
|
|
749 if (rev->timedout) {
|
|
54
|
750 ngx_log_error(NGX_LOG_INFO, c->log, NGX_ETIMEDOUT, "client timed out");
|
|
|
751 c->timedout = 1;
|
|
|
752 ngx_http_close_request(r, NGX_HTTP_REQUEST_TIME_OUT);
|
|
0
|
753 return;
|
|
|
754 }
|
|
|
755
|
|
56
|
756 cmcf = ngx_http_get_module_main_conf(r, ngx_http_core_module);
|
|
60
|
757 cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
|
|
56
|
758 hh = (ngx_http_header_t *) cmcf->headers_in_hash.buckets;
|
|
|
759
|
|
0
|
760 rc = NGX_AGAIN;
|
|
|
761
|
|
|
762 for ( ;; ) {
|
|
|
763
|
|
|
764 if (rc == NGX_AGAIN) {
|
|
|
765
|
|
|
766 if (r->header_in->pos == r->header_in->end) {
|
|
|
767
|
|
|
768 rv = ngx_http_alloc_large_header_buffer(r, 0);
|
|
|
769
|
|
|
770 if (rv == NGX_ERROR) {
|
|
|
771 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
772 return;
|
|
|
773 }
|
|
|
774
|
|
|
775 if (rv == NGX_DECLINED) {
|
|
54
|
776 header.len = r->header_in->end - r->header_name_start;
|
|
|
777 header.data = r->header_name_start;
|
|
80
|
778
|
|
|
779 if (header.len > NGX_MAX_ERROR_STR - 300) {
|
|
|
780 header.len = NGX_MAX_ERROR_STR - 300;
|
|
|
781 header.data[header.len++] = '.';
|
|
|
782 header.data[header.len++] = '.';
|
|
|
783 header.data[header.len++] = '.';
|
|
|
784 }
|
|
|
785
|
|
54
|
786 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
|
787 "client sent too long header line: \"%V\"",
|
|
|
788 &header);
|
|
|
789 ngx_http_close_request(r, NGX_HTTP_BAD_REQUEST);
|
|
0
|
790 return;
|
|
|
791 }
|
|
|
792 }
|
|
|
793
|
|
|
794 n = ngx_http_read_request_header(r);
|
|
|
795
|
|
|
796 if (n == NGX_AGAIN || n == NGX_ERROR) {
|
|
|
797 return;
|
|
|
798 }
|
|
|
799 }
|
|
|
800
|
|
|
801 rc = ngx_http_parse_header_line(r, r->header_in);
|
|
|
802
|
|
|
803 if (rc == NGX_OK) {
|
|
|
804
|
|
60
|
805 if (r->invalid_header && cscf->ignore_invalid_headers) {
|
|
52
|
806
|
|
|
807 /* there was error while a header line parsing */
|
|
|
808
|
|
|
809 header.len = r->header_end - r->header_name_start;
|
|
|
810 header.data = r->header_name_start;
|
|
|
811
|
|
54
|
812 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
|
813 "client sent invalid header line: \"%V\"",
|
|
52
|
814 &header);
|
|
|
815 continue;
|
|
|
816 }
|
|
|
817
|
|
0
|
818 /* a header line has been parsed successfully */
|
|
|
819
|
|
50
|
820 h = ngx_list_push(&r->headers_in.headers);
|
|
|
821 if (h == NULL) {
|
|
0
|
822 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
823 return;
|
|
|
824 }
|
|
|
825
|
|
56
|
826 h->hash = r->header_hash;
|
|
|
827
|
|
0
|
828 h->key.len = r->header_name_end - r->header_name_start;
|
|
|
829 h->key.data = r->header_name_start;
|
|
|
830 h->key.data[h->key.len] = '\0';
|
|
|
831
|
|
|
832 h->value.len = r->header_end - r->header_start;
|
|
|
833 h->value.data = r->header_start;
|
|
|
834 h->value.data[h->value.len] = '\0';
|
|
|
835
|
|
58
|
836 key = h->hash % cmcf->headers_in_hash.hash_size;
|
|
|
837
|
|
|
838 if (hh[key].name.len == h->key.len
|
|
|
839 && ngx_strcasecmp(hh[key].name.data, h->key.data) == 0)
|
|
0
|
840 {
|
|
58
|
841 if (hh[key].handler(r, h, hh[key].offset) != NGX_OK) {
|
|
0
|
842 return;
|
|
|
843 }
|
|
|
844 }
|
|
|
845
|
|
|
846 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
10
|
847 "http header: \"%V: %V\"",
|
|
|
848 &h->key, &h->value);
|
|
0
|
849
|
|
|
850 continue;
|
|
54
|
851 }
|
|
|
852
|
|
|
853 if (rc == NGX_HTTP_PARSE_HEADER_DONE) {
|
|
0
|
854
|
|
|
855 /* a whole header has been parsed successfully */
|
|
|
856
|
|
|
857 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
858 "http header done");
|
|
|
859
|
|
24
|
860 r->request_length += r->header_in->pos - r->header_in->start;
|
|
|
861
|
|
0
|
862 r->http_state = NGX_HTTP_PROCESS_REQUEST_STATE;
|
|
|
863
|
|
|
864 rc = ngx_http_process_request_header(r);
|
|
|
865
|
|
|
866 if (rc != NGX_OK) {
|
|
|
867 return;
|
|
|
868 }
|
|
|
869
|
|
|
870 if (rev->timer_set) {
|
|
|
871 ngx_del_timer(rev);
|
|
|
872 }
|
|
|
873
|
|
|
874 #if (NGX_STAT_STUB)
|
|
110
|
875 ngx_atomic_fetch_add(ngx_stat_reading, -1);
|
|
0
|
876 r->stat_reading = 0;
|
|
110
|
877 ngx_atomic_fetch_add(ngx_stat_writing, 1);
|
|
0
|
878 r->stat_writing = 1;
|
|
|
879 #endif
|
|
|
880
|
|
58
|
881 rev->handler = ngx_http_request_handler;
|
|
|
882 c->write->handler = ngx_http_request_handler;
|
|
|
883 r->read_event_handler = ngx_http_block_read;
|
|
|
884
|
|
0
|
885 ngx_http_handler(r);
|
|
86
|
886
|
|
0
|
887 return;
|
|
54
|
888 }
|
|
|
889
|
|
|
890 if (rc == NGX_AGAIN) {
|
|
|
891
|
|
|
892 /* a header line parsing is still not complete */
|
|
|
893
|
|
|
894 continue;
|
|
0
|
895 }
|
|
|
896
|
|
54
|
897 /* rc == NGX_HTTP_PARSE_INVALID_HEADER: "\r" is not followed by "\n" */
|
|
|
898
|
|
|
899 header.len = r->header_end - r->header_name_start;
|
|
|
900 header.data = r->header_name_start;
|
|
|
901 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
|
902 "client sent invalid header line: \"%V\\r...\"",
|
|
|
903 &header);
|
|
|
904 ngx_http_close_request(r, NGX_HTTP_BAD_REQUEST);
|
|
|
905 return;
|
|
0
|
906 }
|
|
|
907 }
|
|
|
908
|
|
|
909
|
|
50
|
910 static ssize_t
|
|
|
911 ngx_http_read_request_header(ngx_http_request_t *r)
|
|
0
|
912 {
|
|
|
913 ssize_t n;
|
|
|
914 ngx_event_t *rev;
|
|
|
915 ngx_http_core_srv_conf_t *cscf;
|
|
|
916
|
|
|
917 rev = r->connection->read;
|
|
|
918
|
|
|
919 n = r->header_in->last - r->header_in->pos;
|
|
|
920
|
|
|
921 if (n > 0) {
|
|
|
922 return n;
|
|
|
923 }
|
|
|
924
|
|
72
|
925 if (rev->ready) {
|
|
|
926 n = r->connection->recv(r->connection, r->header_in->last,
|
|
|
927 r->header_in->end - r->header_in->last);
|
|
|
928 } else {
|
|
|
929 n = NGX_AGAIN;
|
|
0
|
930 }
|
|
|
931
|
|
|
932 if (n == NGX_AGAIN) {
|
|
|
933 if (!r->header_timeout_set) {
|
|
|
934 cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
|
|
|
935 ngx_add_timer(rev, cscf->client_header_timeout);
|
|
|
936 r->header_timeout_set = 1;
|
|
|
937 }
|
|
|
938
|
|
|
939 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) {
|
|
|
940 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
941 return NGX_ERROR;
|
|
|
942 }
|
|
|
943
|
|
|
944 return NGX_AGAIN;
|
|
|
945 }
|
|
|
946
|
|
|
947 if (n == 0) {
|
|
|
948 ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
|
|
|
949 "client closed prematurely connection");
|
|
|
950 }
|
|
|
951
|
|
|
952 if (n == 0 || n == NGX_ERROR) {
|
|
|
953 ngx_http_close_request(r, NGX_HTTP_BAD_REQUEST);
|
|
|
954 return NGX_ERROR;
|
|
|
955 }
|
|
|
956
|
|
|
957 r->header_in->last += n;
|
|
|
958
|
|
|
959 return n;
|
|
|
960 }
|
|
|
961
|
|
|
962
|
|
50
|
963 static ngx_int_t
|
|
|
964 ngx_http_alloc_large_header_buffer(ngx_http_request_t *r,
|
|
|
965 ngx_uint_t request_line)
|
|
0
|
966 {
|
|
|
967 u_char *old, *new;
|
|
|
968 ngx_buf_t *b;
|
|
|
969 ngx_http_connection_t *hc;
|
|
|
970 ngx_http_core_srv_conf_t *cscf;
|
|
|
971
|
|
|
972 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
973 "http alloc large header buffer");
|
|
|
974
|
|
|
975 if (request_line && r->state == 0) {
|
|
|
976
|
|
|
977 /* the client fills up the buffer with "\r\n" */
|
|
|
978
|
|
24
|
979 r->request_length += r->header_in->end - r->header_in->start;
|
|
|
980
|
|
0
|
981 r->header_in->pos = r->header_in->start;
|
|
|
982 r->header_in->last = r->header_in->start;
|
|
|
983
|
|
|
984 return NGX_OK;
|
|
|
985 }
|
|
|
986
|
|
|
987 old = request_line ? r->request_start : r->header_name_start;
|
|
|
988
|
|
|
989 cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
|
|
|
990
|
|
|
991 if (r->state != 0
|
|
|
992 && (size_t) (r->header_in->pos - old)
|
|
|
993 >= cscf->large_client_header_buffers.size)
|
|
|
994 {
|
|
|
995 return NGX_DECLINED;
|
|
|
996 }
|
|
|
997
|
|
|
998 hc = r->http_connection;
|
|
|
999
|
|
|
1000 if (hc->nfree) {
|
|
|
1001 b = hc->free[--hc->nfree];
|
|
|
1002
|
|
|
1003 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
10
|
1004 "http large header free: %p %uz",
|
|
0
|
1005 b->pos, b->end - b->last);
|
|
|
1006
|
|
|
1007 } else if (hc->nbusy < cscf->large_client_header_buffers.num) {
|
|
|
1008
|
|
|
1009 if (hc->busy == NULL) {
|
|
|
1010 hc->busy = ngx_palloc(r->connection->pool,
|
|
|
1011 cscf->large_client_header_buffers.num * sizeof(ngx_buf_t *));
|
|
|
1012 if (hc->busy == NULL) {
|
|
|
1013 return NGX_ERROR;
|
|
|
1014 }
|
|
|
1015 }
|
|
|
1016
|
|
|
1017 b = ngx_create_temp_buf(r->connection->pool,
|
|
|
1018 cscf->large_client_header_buffers.size);
|
|
|
1019 if (b == NULL) {
|
|
|
1020 return NGX_ERROR;
|
|
|
1021 }
|
|
|
1022
|
|
|
1023 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
10
|
1024 "http large header alloc: %p %uz",
|
|
0
|
1025 b->pos, b->end - b->last);
|
|
|
1026
|
|
|
1027 } else {
|
|
|
1028 return NGX_DECLINED;
|
|
|
1029 }
|
|
|
1030
|
|
|
1031 hc->busy[hc->nbusy++] = b;
|
|
|
1032
|
|
|
1033 if (r->state == 0) {
|
|
|
1034 /*
|
|
|
1035 * r->state == 0 means that a header line was parsed successfully
|
|
|
1036 * and we do not need to copy incomplete header line and
|
|
|
1037 * to relocate the parser header pointers
|
|
|
1038 */
|
|
|
1039
|
|
24
|
1040 r->request_length += r->header_in->end - r->header_in->start;
|
|
|
1041
|
|
0
|
1042 r->header_in = b;
|
|
|
1043
|
|
|
1044 return NGX_OK;
|
|
|
1045 }
|
|
|
1046
|
|
|
1047 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1048 "http large header copy: %d", r->header_in->pos - old);
|
|
|
1049
|
|
24
|
1050 r->request_length += old - r->header_in->start;
|
|
|
1051
|
|
0
|
1052 new = b->start;
|
|
|
1053
|
|
|
1054 ngx_memcpy(new, old, r->header_in->pos - old);
|
|
|
1055
|
|
|
1056 b->pos = new + (r->header_in->pos - old);
|
|
|
1057 b->last = new + (r->header_in->pos - old);
|
|
|
1058
|
|
|
1059 if (request_line) {
|
|
|
1060 r->request_start = new;
|
|
|
1061
|
|
|
1062 if (r->request_end) {
|
|
|
1063 r->request_end = new + (r->request_end - old);
|
|
|
1064 }
|
|
|
1065
|
|
|
1066 r->method_end = new + (r->method_end - old);
|
|
|
1067
|
|
|
1068 r->uri_start = new + (r->uri_start - old);
|
|
|
1069 r->uri_end = new + (r->uri_end - old);
|
|
|
1070
|
|
|
1071 if (r->schema_start) {
|
|
|
1072 r->schema_start = new + (r->schema_start - old);
|
|
|
1073 r->schema_end = new + (r->schema_end - old);
|
|
|
1074 }
|
|
|
1075
|
|
|
1076 if (r->host_start) {
|
|
|
1077 r->host_start = new + (r->host_start - old);
|
|
|
1078 r->host_end = new + (r->host_end - old);
|
|
|
1079 }
|
|
|
1080
|
|
|
1081 if (r->port_start) {
|
|
|
1082 r->port_start = new + (r->port_start - old);
|
|
|
1083 r->port_end = new + (r->port_end - old);
|
|
|
1084 }
|
|
|
1085
|
|
|
1086 if (r->uri_ext) {
|
|
|
1087 r->uri_ext = new + (r->uri_ext - old);
|
|
|
1088 }
|
|
|
1089
|
|
|
1090 if (r->args_start) {
|
|
|
1091 r->args_start = new + (r->args_start - old);
|
|
|
1092 }
|
|
|
1093
|
|
|
1094 } else {
|
|
|
1095 r->header_name_start = new;
|
|
|
1096 r->header_name_end = new + (r->header_name_end - old);
|
|
|
1097 r->header_start = new + (r->header_start - old);
|
|
|
1098 r->header_end = new + (r->header_end - old);
|
|
|
1099 }
|
|
|
1100
|
|
|
1101 r->header_in = b;
|
|
|
1102
|
|
|
1103 return NGX_OK;
|
|
|
1104 }
|
|
|
1105
|
|
|
1106
|
|
50
|
1107 static ngx_int_t
|
|
58
|
1108 ngx_http_process_header_line(ngx_http_request_t *r, ngx_table_elt_t *h,
|
|
|
1109 ngx_uint_t offset)
|
|
|
1110 {
|
|
|
1111 ngx_table_elt_t **ph;
|
|
|
1112
|
|
|
1113 ph = (ngx_table_elt_t **) ((char *) &r->headers_in + offset);
|
|
|
1114
|
|
|
1115 if (*ph == NULL) {
|
|
|
1116 *ph = h;
|
|
|
1117 }
|
|
|
1118
|
|
|
1119 return NGX_OK;
|
|
|
1120 }
|
|
|
1121
|
|
|
1122
|
|
|
1123 static ngx_int_t
|
|
72
|
1124 ngx_http_process_unique_header_line(ngx_http_request_t *r, ngx_table_elt_t *h,
|
|
|
1125 ngx_uint_t offset)
|
|
|
1126 {
|
|
|
1127 ngx_table_elt_t **ph;
|
|
|
1128
|
|
|
1129 ph = (ngx_table_elt_t **) ((char *) &r->headers_in + offset);
|
|
|
1130
|
|
|
1131 if (*ph == NULL) {
|
|
|
1132 *ph = h;
|
|
|
1133 return NGX_OK;
|
|
|
1134 }
|
|
|
1135
|
|
|
1136 ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
|
|
|
1137 "client sent duplicate header line: \"%V: %V\"",
|
|
|
1138 &h->key, &h->value);
|
|
|
1139
|
|
|
1140 ngx_http_finalize_request(r, NGX_HTTP_BAD_REQUEST);
|
|
|
1141
|
|
|
1142 return NGX_ERROR;
|
|
|
1143 }
|
|
|
1144
|
|
|
1145
|
|
|
1146 static ngx_int_t
|
|
58
|
1147 ngx_http_process_cookie(ngx_http_request_t *r, ngx_table_elt_t *h,
|
|
|
1148 ngx_uint_t offset)
|
|
|
1149 {
|
|
|
1150 ngx_table_elt_t **cookie;
|
|
|
1151
|
|
|
1152 cookie = ngx_array_push(&r->headers_in.cookies);
|
|
72
|
1153 if (cookie) {
|
|
|
1154 *cookie = h;
|
|
|
1155 return NGX_OK;
|
|
58
|
1156 }
|
|
|
1157
|
|
72
|
1158 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
1159
|
|
|
1160 return NGX_ERROR;
|
|
58
|
1161 }
|
|
|
1162
|
|
|
1163
|
|
|
1164 static ngx_int_t
|
|
50
|
1165 ngx_http_process_request_header(ngx_http_request_t *r)
|
|
0
|
1166 {
|
|
162
|
1167 size_t len;
|
|
|
1168 u_char *ua, *user_agent, ch;
|
|
0
|
1169
|
|
|
1170 if (r->headers_in.host) {
|
|
|
1171 for (len = 0; len < r->headers_in.host->value.len; len++) {
|
|
26
|
1172 ch = r->headers_in.host->value.data[len];
|
|
|
1173
|
|
|
1174 if (ch == ':') {
|
|
0
|
1175 break;
|
|
|
1176 }
|
|
26
|
1177
|
|
|
1178 r->headers_in.host->value.data[len] = ngx_tolower(ch);
|
|
0
|
1179 }
|
|
54
|
1180
|
|
58
|
1181 if (r->headers_in.host->value.data[len - 1] == '.') {
|
|
|
1182 len--;
|
|
|
1183 }
|
|
|
1184
|
|
0
|
1185 r->headers_in.host_name_len = len;
|
|
|
1186
|
|
162
|
1187 ngx_http_find_virtual_server(r);
|
|
0
|
1188
|
|
|
1189 } else {
|
|
|
1190 if (r->http_version > NGX_HTTP_VERSION_10) {
|
|
54
|
1191 ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
|
|
|
1192 "client sent HTTP/1.1 request without \"Host\" header");
|
|
|
1193 ngx_http_finalize_request(r, NGX_HTTP_BAD_REQUEST);
|
|
|
1194 return NGX_ERROR;
|
|
0
|
1195 }
|
|
54
|
1196
|
|
0
|
1197 r->headers_in.host_name_len = 0;
|
|
|
1198 }
|
|
|
1199
|
|
|
1200 if (r->headers_in.content_length) {
|
|
|
1201 r->headers_in.content_length_n =
|
|
50
|
1202 ngx_atosz(r->headers_in.content_length->value.data,
|
|
0
|
1203 r->headers_in.content_length->value.len);
|
|
|
1204
|
|
|
1205 if (r->headers_in.content_length_n == NGX_ERROR) {
|
|
54
|
1206 ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
|
|
|
1207 "client sent invalid \"Content-Length\" header");
|
|
130
|
1208 ngx_http_finalize_request(r, NGX_HTTP_LENGTH_REQUIRED);
|
|
54
|
1209 return NGX_ERROR;
|
|
0
|
1210 }
|
|
|
1211 }
|
|
|
1212
|
|
32
|
1213 if (r->method == NGX_HTTP_POST && r->headers_in.content_length_n == -1) {
|
|
54
|
1214 ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
|
|
|
1215 "client sent POST method without \"Content-Length\" header");
|
|
130
|
1216 ngx_http_finalize_request(r, NGX_HTTP_LENGTH_REQUIRED);
|
|
|
1217 return NGX_ERROR;
|
|
|
1218 }
|
|
|
1219
|
|
|
1220 if (r->headers_in.transfer_encoding
|
|
|
1221 && ngx_strstr(r->headers_in.transfer_encoding->value.data, "chunked"))
|
|
|
1222 {
|
|
|
1223 ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
|
|
|
1224 "client sent \"Transfer-Encoding: chunked\" header");
|
|
|
1225 ngx_http_finalize_request(r, NGX_HTTP_LENGTH_REQUIRED);
|
|
54
|
1226 return NGX_ERROR;
|
|
0
|
1227 }
|
|
|
1228
|
|
|
1229 if (r->plain_http) {
|
|
54
|
1230 ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
|
|
|
1231 "client sent plain HTTP request to HTTPS port");
|
|
|
1232 ngx_http_finalize_request(r, NGX_HTTP_TO_HTTPS);
|
|
|
1233 return NGX_ERROR;
|
|
0
|
1234 }
|
|
|
1235
|
|
|
1236 if (r->headers_in.connection) {
|
|
|
1237 if (r->headers_in.connection->value.len == 5
|
|
|
1238 && ngx_strcasecmp(r->headers_in.connection->value.data, "close")
|
|
58
|
1239 == 0)
|
|
0
|
1240 {
|
|
|
1241 r->headers_in.connection_type = NGX_HTTP_CONNECTION_CLOSE;
|
|
|
1242
|
|
|
1243 } else if (r->headers_in.connection->value.len == 10
|
|
|
1244 && ngx_strcasecmp(r->headers_in.connection->value.data,
|
|
58
|
1245 "keep-alive") == 0)
|
|
0
|
1246 {
|
|
|
1247 r->headers_in.connection_type = NGX_HTTP_CONNECTION_KEEP_ALIVE;
|
|
|
1248
|
|
|
1249 if (r->headers_in.keep_alive) {
|
|
|
1250 r->headers_in.keep_alive_n =
|
|
50
|
1251 ngx_atotm(r->headers_in.keep_alive->value.data,
|
|
0
|
1252 r->headers_in.keep_alive->value.len);
|
|
|
1253 }
|
|
|
1254 }
|
|
|
1255 }
|
|
|
1256
|
|
|
1257 if (r->headers_in.user_agent) {
|
|
|
1258
|
|
|
1259 /*
|
|
|
1260 * check some widespread browsers while the headers are still
|
|
|
1261 * in CPU cache
|
|
|
1262 */
|
|
|
1263
|
|
|
1264 user_agent = r->headers_in.user_agent->value.data;
|
|
|
1265
|
|
|
1266 ua = (u_char *) ngx_strstr(user_agent, "MSIE");
|
|
|
1267
|
|
|
1268 if (ua && ua + 8 < user_agent + r->headers_in.user_agent->value.len) {
|
|
|
1269
|
|
|
1270 r->headers_in.msie = 1;
|
|
|
1271
|
|
|
1272 if (ua[4] == ' ' && ua[5] == '4' && ua[6] == '.') {
|
|
|
1273 r->headers_in.msie4 = 1;
|
|
|
1274 }
|
|
|
1275
|
|
|
1276 #if 0
|
|
|
1277 /* MSIE ignores the SSL "close notify" alert */
|
|
22
|
1278 if (c->ssl) {
|
|
96
|
1279 c->ssl->no_send_shutdown = 1;
|
|
22
|
1280 }
|
|
0
|
1281 #endif
|
|
|
1282 }
|
|
|
1283
|
|
|
1284 if (ngx_strstr(user_agent, "Opera")) {
|
|
|
1285 r->headers_in.opera = 1;
|
|
|
1286 r->headers_in.msie = 0;
|
|
|
1287 r->headers_in.msie4 = 0;
|
|
|
1288 }
|
|
|
1289
|
|
|
1290 if (!r->headers_in.msie && !r->headers_in.opera) {
|
|
|
1291
|
|
|
1292 if (ngx_strstr(user_agent, "Gecko/")) {
|
|
|
1293 r->headers_in.gecko = 1;
|
|
|
1294
|
|
|
1295 } else if (ngx_strstr(user_agent, "Konqueror")) {
|
|
|
1296 r->headers_in.konqueror = 1;
|
|
|
1297 }
|
|
|
1298 }
|
|
|
1299 }
|
|
|
1300
|
|
|
1301 return NGX_OK;
|
|
|
1302 }
|
|
|
1303
|
|
|
1304
|
|
162
|
1305 static void
|
|
50
|
1306 ngx_http_find_virtual_server(ngx_http_request_t *r)
|
|
26
|
1307 {
|
|
142
|
1308 size_t len;
|
|
|
1309 u_char *host;
|
|
|
1310 ngx_http_virtual_names_t *vn;
|
|
|
1311 ngx_http_core_loc_conf_t *clcf;
|
|
|
1312 ngx_http_core_srv_conf_t *cscf;
|
|
|
1313
|
|
|
1314 vn = r->virtual_names;
|
|
|
1315
|
|
|
1316 if (vn == NULL) {
|
|
162
|
1317 return;
|
|
26
|
1318 }
|
|
|
1319
|
|
142
|
1320 host = r->headers_in.host->value.data;
|
|
|
1321 len = r->headers_in.host_name_len;
|
|
|
1322
|
|
|
1323 /* STUB: ngx_hash_key() here is STUB */
|
|
|
1324
|
|
|
1325 if (vn->hash.buckets) {
|
|
|
1326 cscf = ngx_hash_find(&vn->hash, ngx_hash_key(host, len), host, len);
|
|
|
1327 if (cscf) {
|
|
58
|
1328 goto found;
|
|
26
|
1329 }
|
|
|
1330 }
|
|
|
1331
|
|
142
|
1332 if (vn->dns_wildcards && vn->dns_wildcards->hash.buckets) {
|
|
|
1333 cscf = ngx_hash_find_wildcard(vn->dns_wildcards, host, len);
|
|
|
1334
|
|
|
1335 if (cscf) {
|
|
|
1336 goto found;
|
|
26
|
1337 }
|
|
|
1338 }
|
|
|
1339
|
|
162
|
1340 return;
|
|
58
|
1341
|
|
|
1342 found:
|
|
|
1343
|
|
142
|
1344 r->server_name.len = len;
|
|
|
1345 r->server_name.data = host;
|
|
|
1346
|
|
|
1347 r->srv_conf = cscf->ctx->srv_conf;
|
|
|
1348 r->loc_conf = cscf->ctx->loc_conf;
|
|
58
|
1349
|
|
|
1350 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
1351 r->connection->log->file = clcf->err_log->file;
|
|
|
1352
|
|
|
1353 if (!(r->connection->log->log_level & NGX_LOG_DEBUG_CONNECTION)) {
|
|
|
1354 r->connection->log->log_level = clcf->err_log->log_level;
|
|
26
|
1355 }
|
|
|
1356
|
|
162
|
1357 return;
|
|
26
|
1358 }
|
|
|
1359
|
|
|
1360
|
|
58
|
1361 static void
|
|
|
1362 ngx_http_request_handler(ngx_event_t *ev)
|
|
|
1363 {
|
|
|
1364 ngx_connection_t *c;
|
|
|
1365 ngx_http_request_t *r;
|
|
|
1366
|
|
|
1367 c = ev->data;
|
|
|
1368 r = c->data;
|
|
|
1369
|
|
|
1370 if (ev->write) {
|
|
|
1371 r->write_event_handler(r);
|
|
|
1372
|
|
|
1373 } else {
|
|
|
1374 r->read_event_handler(r);
|
|
|
1375 }
|
|
|
1376 }
|
|
|
1377
|
|
|
1378
|
|
50
|
1379 void
|
|
58
|
1380 ngx_http_finalize_request(ngx_http_request_t *r, ngx_int_t rc)
|
|
0
|
1381 {
|
|
58
|
1382 ngx_http_request_t *pr;
|
|
0
|
1383 ngx_http_core_loc_conf_t *clcf;
|
|
|
1384
|
|
58
|
1385 if (rc == NGX_DONE) {
|
|
118
|
1386 /* the request pool may be already destroyed */
|
|
58
|
1387 return;
|
|
|
1388 }
|
|
|
1389
|
|
132
|
1390 ngx_log_debug3(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1391 "http finalize request: %d, \"%V?%V\"",
|
|
|
1392 rc, &r->uri, &r->args);
|
|
|
1393
|
|
162
|
1394 if (rc == NGX_ERROR
|
|
|
1395 || rc == NGX_HTTP_REQUEST_TIME_OUT
|
|
|
1396 || r->connection->error)
|
|
|
1397 {
|
|
|
1398 if (ngx_http_post_action(r) == NGX_OK) {
|
|
|
1399 return;
|
|
|
1400 }
|
|
|
1401
|
|
118
|
1402 ngx_http_close_request(r, 0);
|
|
0
|
1403 return;
|
|
|
1404 }
|
|
|
1405
|
|
118
|
1406 if (rc >= NGX_HTTP_SPECIAL_RESPONSE || rc == NGX_HTTP_NO_CONTENT) {
|
|
|
1407
|
|
136
|
1408 if (rc == NGX_HTTP_CLOSE) {
|
|
|
1409 ngx_http_close_request(r, rc);
|
|
|
1410 return;
|
|
|
1411 }
|
|
|
1412
|
|
146
|
1413 if (r == r->main) {
|
|
118
|
1414 if (r->connection->read->timer_set) {
|
|
|
1415 ngx_del_timer(r->connection->read);
|
|
|
1416 }
|
|
|
1417
|
|
|
1418 if (r->connection->write->timer_set) {
|
|
|
1419 ngx_del_timer(r->connection->write);
|
|
|
1420 }
|
|
|
1421 }
|
|
|
1422
|
|
|
1423 ngx_http_finalize_request(r, ngx_http_special_response_handler(r, rc));
|
|
|
1424
|
|
|
1425 return;
|
|
|
1426 }
|
|
|
1427
|
|
146
|
1428 if (r != r->main || rc == NGX_AGAIN) {
|
|
74
|
1429 if (ngx_http_set_write_handler(r) != NGX_OK) {
|
|
|
1430 return;
|
|
|
1431 }
|
|
58
|
1432 }
|
|
|
1433
|
|
|
1434 r->done = 1;
|
|
|
1435
|
|
|
1436 if (r != r->connection->data) {
|
|
132
|
1437 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1438 "http finalize non-active request: \"%V?%V\"",
|
|
|
1439 &r->uri, &r->args);
|
|
58
|
1440 return;
|
|
|
1441 }
|
|
|
1442
|
|
146
|
1443 if (r != r->main) {
|
|
58
|
1444
|
|
|
1445 pr = r->parent;
|
|
|
1446
|
|
132
|
1447 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1448 "http parent request: \"%V?%V\"", &pr->uri, &pr->args);
|
|
76
|
1449
|
|
58
|
1450 if (rc != NGX_AGAIN) {
|
|
146
|
1451 r->connection->data = pr;
|
|
58
|
1452 }
|
|
|
1453
|
|
|
1454 if (pr->postponed) {
|
|
|
1455
|
|
132
|
1456 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1457 "http request: \"%V?%V\" has postponed",
|
|
|
1458 &pr->uri, &pr->args);
|
|
76
|
1459
|
|
58
|
1460 if (rc != NGX_AGAIN && pr->postponed->request == r) {
|
|
|
1461 pr->postponed = pr->postponed->next;
|
|
146
|
1462 }
|
|
|
1463
|
|
|
1464 if (r->fast_subrequest) {
|
|
|
1465 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1466 "http fast subrequest: \"%V?%V\" done",
|
|
|
1467 &r->uri, &r->args);
|
|
|
1468 return;
|
|
58
|
1469 }
|
|
|
1470
|
|
132
|
1471 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
146
|
1472 "http wake parent request: \"%V?%V\"",
|
|
|
1473 &pr->uri, &pr->args);
|
|
|
1474
|
|
|
1475 pr->write_event_handler(pr);
|
|
|
1476
|
|
|
1477 #if 0
|
|
|
1478 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
132
|
1479 "http request: \"%V?%V\" still has postponed",
|
|
|
1480 &pr->uri, &pr->args);
|
|
|
1481
|
|
|
1482 if (pr->done || pr->postponed->out) {
|
|
|
1483 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1484 "http wake parent request: \"%V?%V\"",
|
|
|
1485 &pr->uri, &pr->args);
|
|
58
|
1486
|
|
|
1487 pr->write_event_handler(pr);
|
|
|
1488 }
|
|
146
|
1489 #endif
|
|
|
1490
|
|
58
|
1491 }
|
|
|
1492
|
|
|
1493 return;
|
|
|
1494 }
|
|
0
|
1495
|
|
118
|
1496 if (rc == NGX_AGAIN) {
|
|
0
|
1497 return;
|
|
76
|
1498 }
|
|
|
1499
|
|
146
|
1500 if (r->connection->buffered) {
|
|
74
|
1501 (void) ngx_http_set_write_handler(r);
|
|
0
|
1502 return;
|
|
|
1503 }
|
|
|
1504
|
|
178
|
1505 if (!r->post_action) {
|
|
|
1506 r->request_complete = 1;
|
|
|
1507 }
|
|
|
1508
|
|
162
|
1509 if (ngx_http_post_action(r) == NGX_OK) {
|
|
126
|
1510 return;
|
|
|
1511 }
|
|
|
1512
|
|
0
|
1513 if (r->connection->read->timer_set) {
|
|
|
1514 ngx_del_timer(r->connection->read);
|
|
|
1515 }
|
|
|
1516
|
|
|
1517 if (r->connection->write->timer_set) {
|
|
|
1518 r->connection->write->delayed = 0;
|
|
|
1519 ngx_del_timer(r->connection->write);
|
|
|
1520 }
|
|
|
1521
|
|
138
|
1522 if (r->connection->destroyed) {
|
|
|
1523 return;
|
|
|
1524 }
|
|
|
1525
|
|
162
|
1526 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
0
|
1527
|
|
|
1528 if (!ngx_terminate
|
|
|
1529 && !ngx_exiting
|
|
|
1530 && r->keepalive != 0
|
|
|
1531 && clcf->keepalive_timeout > 0)
|
|
|
1532 {
|
|
|
1533 ngx_http_set_keepalive(r);
|
|
|
1534 return;
|
|
|
1535
|
|
|
1536 } else if (r->lingering_close && clcf->lingering_timeout > 0) {
|
|
|
1537 ngx_http_set_lingering_close(r);
|
|
|
1538 return;
|
|
|
1539 }
|
|
|
1540
|
|
|
1541 ngx_http_close_request(r, 0);
|
|
|
1542 }
|
|
|
1543
|
|
|
1544
|
|
74
|
1545 static ngx_int_t
|
|
50
|
1546 ngx_http_set_write_handler(ngx_http_request_t *r)
|
|
0
|
1547 {
|
|
|
1548 ngx_event_t *wev;
|
|
|
1549 ngx_http_core_loc_conf_t *clcf;
|
|
|
1550
|
|
58
|
1551 r->http_state = NGX_HTTP_WRITING_REQUEST_STATE;
|
|
|
1552
|
|
74
|
1553 r->write_event_handler = ngx_http_writer;
|
|
|
1554
|
|
0
|
1555 wev = r->connection->write;
|
|
|
1556
|
|
|
1557 if (wev->ready && wev->delayed) {
|
|
74
|
1558 return NGX_OK;
|
|
0
|
1559 }
|
|
|
1560
|
|
58
|
1561 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
0
|
1562 if (!wev->delayed) {
|
|
|
1563 ngx_add_timer(wev, clcf->send_timeout);
|
|
|
1564 }
|
|
|
1565
|
|
2
|
1566 if (ngx_handle_write_event(wev, clcf->send_lowat) == NGX_ERROR) {
|
|
0
|
1567 ngx_http_close_request(r, 0);
|
|
74
|
1568 return NGX_ERROR;
|
|
0
|
1569 }
|
|
74
|
1570
|
|
|
1571 return NGX_OK;
|
|
0
|
1572 }
|
|
|
1573
|
|
|
1574
|
|
58
|
1575 static void
|
|
|
1576 ngx_http_writer(ngx_http_request_t *r)
|
|
0
|
1577 {
|
|
|
1578 int rc;
|
|
58
|
1579 ngx_event_t *wev;
|
|
0
|
1580 ngx_connection_t *c;
|
|
|
1581 ngx_http_core_loc_conf_t *clcf;
|
|
|
1582
|
|
58
|
1583 c = r->connection;
|
|
|
1584 wev = c->write;
|
|
|
1585
|
|
132
|
1586 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, wev->log, 0,
|
|
|
1587 "http writer handler: \"%V?%V\"", &r->uri, &r->args);
|
|
0
|
1588
|
|
|
1589 if (wev->timedout) {
|
|
|
1590 if (!wev->delayed) {
|
|
54
|
1591 ngx_log_error(NGX_LOG_INFO, c->log, NGX_ETIMEDOUT,
|
|
|
1592 "client timed out");
|
|
|
1593 c->timedout = 1;
|
|
116
|
1594
|
|
162
|
1595 ngx_http_finalize_request(r, NGX_HTTP_REQUEST_TIME_OUT);
|
|
0
|
1596 return;
|
|
|
1597 }
|
|
|
1598
|
|
|
1599 wev->timedout = 0;
|
|
|
1600 wev->delayed = 0;
|
|
|
1601
|
|
|
1602 if (!wev->ready) {
|
|
102
|
1603 clcf = ngx_http_get_module_loc_conf(r->main, ngx_http_core_module);
|
|
0
|
1604 ngx_add_timer(wev, clcf->send_timeout);
|
|
|
1605
|
|
2
|
1606 if (ngx_handle_write_event(wev, clcf->send_lowat) == NGX_ERROR) {
|
|
118
|
1607 ngx_http_close_request(r, 0);
|
|
0
|
1608 }
|
|
|
1609
|
|
|
1610 return;
|
|
|
1611 }
|
|
|
1612
|
|
|
1613 } else {
|
|
|
1614 if (wev->delayed) {
|
|
|
1615 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, wev->log, 0,
|
|
|
1616 "http writer delayed");
|
|
|
1617
|
|
102
|
1618 clcf = ngx_http_get_module_loc_conf(r->main, ngx_http_core_module);
|
|
2
|
1619
|
|
|
1620 if (ngx_handle_write_event(wev, clcf->send_lowat) == NGX_ERROR) {
|
|
118
|
1621 ngx_http_close_request(r, 0);
|
|
0
|
1622 }
|
|
|
1623
|
|
|
1624 return;
|
|
|
1625 }
|
|
|
1626 }
|
|
|
1627
|
|
132
|
1628 rc = ngx_http_output_filter(r, NULL);
|
|
|
1629
|
|
|
1630 if (c->destroyed) {
|
|
|
1631 return;
|
|
58
|
1632 }
|
|
|
1633
|
|
132
|
1634 ngx_log_debug3(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
|
1635 "http writer output filter: %d, \"%V?%V\"",
|
|
|
1636 rc, &r->uri, &r->args);
|
|
0
|
1637
|
|
|
1638 if (rc == NGX_AGAIN) {
|
|
102
|
1639 clcf = ngx_http_get_module_loc_conf(r->main, ngx_http_core_module);
|
|
0
|
1640 if (!wev->ready && !wev->delayed) {
|
|
|
1641 ngx_add_timer(wev, clcf->send_timeout);
|
|
|
1642 }
|
|
|
1643
|
|
2
|
1644 if (ngx_handle_write_event(wev, clcf->send_lowat) == NGX_ERROR) {
|
|
118
|
1645 ngx_http_close_request(r, 0);
|
|
0
|
1646 }
|
|
|
1647
|
|
146
|
1648 if (r == r->main) {
|
|
|
1649 return;
|
|
|
1650 }
|
|
|
1651
|
|
|
1652 rc = NGX_OK;
|
|
0
|
1653 }
|
|
|
1654
|
|
132
|
1655 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, wev->log, 0,
|
|
|
1656 "http writer done: \"%V?%V\"", &r->uri, &r->args);
|
|
0
|
1657
|
|
|
1658 ngx_http_finalize_request(r, rc);
|
|
|
1659 }
|
|
|
1660
|
|
|
1661
|
|
50
|
1662 static void
|
|
58
|
1663 ngx_http_block_read(ngx_http_request_t *r)
|
|
0
|
1664 {
|
|
58
|
1665 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1666 "http read blocked");
|
|
0
|
1667
|
|
|
1668 /* aio does not call this handler */
|
|
|
1669
|
|
58
|
1670 if ((ngx_event_flags & NGX_USE_LEVEL_EVENT)
|
|
|
1671 && r->connection->read->active)
|
|
|
1672 {
|
|
|
1673 if (ngx_del_event(r->connection->read, NGX_READ_EVENT, 0)
|
|
|
1674 == NGX_ERROR)
|
|
|
1675 {
|
|
0
|
1676 ngx_http_close_request(r, 0);
|
|
|
1677 }
|
|
|
1678 }
|
|
|
1679 }
|
|
|
1680
|
|
|
1681
|
|
50
|
1682 static void
|
|
|
1683 ngx_http_set_keepalive(ngx_http_request_t *r)
|
|
0
|
1684 {
|
|
2
|
1685 int tcp_nodelay;
|
|
0
|
1686 ngx_int_t i;
|
|
|
1687 ngx_buf_t *b, *f;
|
|
|
1688 ngx_event_t *rev, *wev;
|
|
|
1689 ngx_connection_t *c;
|
|
|
1690 ngx_http_connection_t *hc;
|
|
|
1691 ngx_http_core_srv_conf_t *cscf;
|
|
|
1692 ngx_http_core_loc_conf_t *clcf;
|
|
|
1693
|
|
|
1694 c = r->connection;
|
|
|
1695 rev = c->read;
|
|
|
1696
|
|
|
1697 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "set http keepalive handler");
|
|
|
1698
|
|
32
|
1699 c->log->action = "closing request";
|
|
0
|
1700
|
|
|
1701 hc = r->http_connection;
|
|
|
1702 b = r->header_in;
|
|
|
1703
|
|
|
1704 if (b->pos < b->last) {
|
|
|
1705
|
|
|
1706 /* the pipelined request */
|
|
|
1707
|
|
|
1708 if (b != c->buffer) {
|
|
|
1709
|
|
4
|
1710 /*
|
|
|
1711 * If the large header buffers were allocated while the previous
|
|
|
1712 * request processing then we do not use c->buffer for
|
|
|
1713 * the pipelined request (see ngx_http_init_request()).
|
|
126
|
1714 *
|
|
4
|
1715 * Now we would move the large header buffers to the free list.
|
|
|
1716 */
|
|
0
|
1717
|
|
|
1718 cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
|
|
|
1719
|
|
|
1720 if (hc->free == NULL) {
|
|
|
1721 hc->free = ngx_palloc(c->pool,
|
|
|
1722 cscf->large_client_header_buffers.num * sizeof(ngx_buf_t *));
|
|
|
1723
|
|
|
1724 if (hc->free == NULL) {
|
|
26
|
1725 ngx_http_close_request(r, 0);
|
|
0
|
1726 return;
|
|
|
1727 }
|
|
|
1728 }
|
|
|
1729
|
|
|
1730 for (i = 0; i < hc->nbusy - 1; i++) {
|
|
|
1731 f = hc->busy[i];
|
|
|
1732 hc->free[hc->nfree++] = f;
|
|
|
1733 f->pos = f->start;
|
|
|
1734 f->last = f->start;
|
|
|
1735 }
|
|
|
1736
|
|
|
1737 hc->busy[0] = b;
|
|
|
1738 hc->nbusy = 1;
|
|
|
1739 }
|
|
|
1740 }
|
|
|
1741
|
|
26
|
1742 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
1743
|
|
118
|
1744 ngx_http_request_done(r, 0);
|
|
|
1745
|
|
0
|
1746 c->data = hc;
|
|
|
1747
|
|
|
1748 ngx_add_timer(rev, clcf->keepalive_timeout);
|
|
|
1749
|
|
58
|
1750 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) {
|
|
0
|
1751 ngx_http_close_connection(c);
|
|
|
1752 return;
|
|
|
1753 }
|
|
|
1754
|
|
|
1755 wev = c->write;
|
|
58
|
1756 wev->handler = ngx_http_empty_handler;
|
|
0
|
1757
|
|
|
1758 if (b->pos < b->last) {
|
|
|
1759
|
|
|
1760 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "pipelined request");
|
|
|
1761
|
|
116
|
1762 #if (NGX_STAT_STUB)
|
|
|
1763 ngx_atomic_fetch_add(ngx_stat_reading, 1);
|
|
|
1764 #endif
|
|
|
1765
|
|
0
|
1766 hc->pipeline = 1;
|
|
32
|
1767 c->log->action = "reading client pipelined request line";
|
|
116
|
1768
|
|
0
|
1769 ngx_http_init_request(rev);
|
|
|
1770 return;
|
|
|
1771 }
|
|
|
1772
|
|
|
1773 hc->pipeline = 0;
|
|
|
1774
|
|
4
|
1775 /*
|
|
|
1776 * To keep a memory footprint as small as possible for an idle
|
|
|
1777 * keepalive connection we try to free the ngx_http_request_t and
|
|
|
1778 * c->buffer's memory if they were allocated outside the c->pool.
|
|
|
1779 * The large header buffers are always allocated outside the c->pool and
|
|
|
1780 * are freed too.
|
|
|
1781 */
|
|
|
1782
|
|
0
|
1783 if (ngx_pfree(c->pool, r) == NGX_OK) {
|
|
|
1784 hc->request = NULL;
|
|
|
1785 }
|
|
|
1786
|
|
|
1787 b = c->buffer;
|
|
|
1788
|
|
|
1789 if (ngx_pfree(c->pool, b->start) == NGX_OK) {
|
|
4
|
1790
|
|
|
1791 /*
|
|
|
1792 * the special note for ngx_http_keepalive_handler() that
|
|
|
1793 * c->buffer's memory was freed
|
|
|
1794 */
|
|
|
1795
|
|
0
|
1796 b->pos = NULL;
|
|
|
1797
|
|
|
1798 } else {
|
|
|
1799 b->pos = b->start;
|
|
|
1800 b->last = b->start;
|
|
|
1801 }
|
|
|
1802
|
|
10
|
1803 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, c->log, 0, "hc free: %p %d",
|
|
0
|
1804 hc->free, hc->nfree);
|
|
|
1805
|
|
|
1806 if (hc->free) {
|
|
|
1807 for (i = 0; i < hc->nfree; i++) {
|
|
|
1808 ngx_pfree(c->pool, hc->free[i]);
|
|
|
1809 hc->free[i] = NULL;
|
|
|
1810 }
|
|
|
1811
|
|
|
1812 hc->nfree = 0;
|
|
|
1813 }
|
|
|
1814
|
|
10
|
1815 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, c->log, 0, "hc busy: %p %d",
|
|
0
|
1816 hc->busy, hc->nbusy);
|
|
|
1817
|
|
|
1818 if (hc->busy) {
|
|
|
1819 for (i = 0; i < hc->nbusy; i++) {
|
|
|
1820 ngx_pfree(c->pool, hc->busy[i]);
|
|
|
1821 hc->busy[i] = NULL;
|
|
|
1822 }
|
|
|
1823
|
|
|
1824 hc->nbusy = 0;
|
|
|
1825 }
|
|
|
1826
|
|
58
|
1827 rev->handler = ngx_http_keepalive_handler;
|
|
0
|
1828
|
|
132
|
1829 if (wev->active && (ngx_event_flags & NGX_USE_LEVEL_EVENT)) {
|
|
|
1830 if (ngx_del_event(wev, NGX_WRITE_EVENT, 0) == NGX_ERROR) {
|
|
|
1831 ngx_http_close_connection(c);
|
|
|
1832 return;
|
|
0
|
1833 }
|
|
|
1834 }
|
|
|
1835
|
|
32
|
1836 c->log->action = "keepalive";
|
|
0
|
1837
|
|
|
1838 if (c->tcp_nopush == NGX_TCP_NOPUSH_SET) {
|
|
50
|
1839 if (ngx_tcp_push(c->fd) == -1) {
|
|
0
|
1840 ngx_connection_error(c, ngx_socket_errno, ngx_tcp_push_n " failed");
|
|
|
1841 ngx_http_close_connection(c);
|
|
|
1842 return;
|
|
|
1843 }
|
|
2
|
1844
|
|
0
|
1845 c->tcp_nopush = NGX_TCP_NOPUSH_UNSET;
|
|
22
|
1846 tcp_nodelay = ngx_tcp_nodelay_and_tcp_nopush ? 1 : 0;
|
|
2
|
1847
|
|
|
1848 } else {
|
|
22
|
1849 tcp_nodelay = 1;
|
|
|
1850 }
|
|
|
1851
|
|
32
|
1852 if (tcp_nodelay
|
|
|
1853 && clcf->tcp_nodelay
|
|
|
1854 && c->tcp_nodelay == NGX_TCP_NODELAY_UNSET)
|
|
|
1855 {
|
|
22
|
1856 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "tcp_nodelay");
|
|
|
1857
|
|
|
1858 if (setsockopt(c->fd, IPPROTO_TCP, TCP_NODELAY,
|
|
|
1859 (const void *) &tcp_nodelay, sizeof(int)) == -1)
|
|
|
1860 {
|
|
|
1861 ngx_connection_error(c, ngx_socket_errno,
|
|
|
1862 "setsockopt(TCP_NODELAY) failed");
|
|
|
1863 ngx_http_close_connection(c);
|
|
|
1864 return;
|
|
2
|
1865 }
|
|
22
|
1866
|
|
32
|
1867 c->tcp_nodelay = NGX_TCP_NODELAY_SET;
|
|
0
|
1868 }
|
|
|
1869
|
|
|
1870 #if 0
|
|
4
|
1871 /* if ngx_http_request_t was freed then we need some other place */
|
|
0
|
1872 r->http_state = NGX_HTTP_KEEPALIVE_STATE;
|
|
|
1873 #endif
|
|
|
1874
|
|
|
1875 if (rev->ready) {
|
|
|
1876 ngx_http_keepalive_handler(rev);
|
|
|
1877 }
|
|
|
1878 }
|
|
|
1879
|
|
|
1880
|
|
50
|
1881 static void
|
|
|
1882 ngx_http_keepalive_handler(ngx_event_t *rev)
|
|
0
|
1883 {
|
|
50
|
1884 size_t size;
|
|
|
1885 ssize_t n;
|
|
|
1886 ngx_buf_t *b;
|
|
|
1887 ngx_connection_t *c;
|
|
0
|
1888
|
|
|
1889 c = rev->data;
|
|
|
1890
|
|
|
1891 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "http keepalive handler");
|
|
|
1892
|
|
|
1893 if (rev->timedout) {
|
|
|
1894 ngx_http_close_connection(c);
|
|
|
1895 return;
|
|
|
1896 }
|
|
|
1897
|
|
18
|
1898 #if (NGX_HAVE_KQUEUE)
|
|
0
|
1899
|
|
4
|
1900 if (ngx_event_flags & NGX_USE_KQUEUE_EVENT) {
|
|
136
|
1901 if (rev->pending_eof) {
|
|
32
|
1902 c->log->handler = NULL;
|
|
0
|
1903 ngx_log_error(NGX_LOG_INFO, c->log, rev->kq_errno,
|
|
10
|
1904 "kevent() reported that client %V closed "
|
|
32
|
1905 "keepalive connection", &c->addr_text);
|
|
22
|
1906 #if (NGX_HTTP_SSL)
|
|
|
1907 if (c->ssl) {
|
|
96
|
1908 c->ssl->no_send_shutdown = 1;
|
|
22
|
1909 }
|
|
|
1910 #endif
|
|
0
|
1911 ngx_http_close_connection(c);
|
|
|
1912 return;
|
|
|
1913 }
|
|
|
1914 }
|
|
|
1915
|
|
|
1916 #endif
|
|
|
1917
|
|
|
1918 b = c->buffer;
|
|
|
1919 size = b->end - b->start;
|
|
|
1920
|
|
|
1921 if (b->pos == NULL) {
|
|
4
|
1922
|
|
|
1923 /*
|
|
|
1924 * The c->buffer's memory was freed by ngx_http_set_keepalive().
|
|
|
1925 * However, the c->buffer->start and c->buffer->end were not changed
|
|
|
1926 * to keep the buffer size.
|
|
|
1927 */
|
|
|
1928
|
|
50
|
1929 b->pos = ngx_palloc(c->pool, size);
|
|
|
1930 if (b->pos == NULL) {
|
|
0
|
1931 ngx_http_close_connection(c);
|
|
|
1932 return;
|
|
|
1933 }
|
|
|
1934
|
|
|
1935 b->start = b->pos;
|
|
|
1936 b->last = b->pos;
|
|
|
1937 b->end = b->pos + size;
|
|
|
1938 }
|
|
|
1939
|
|
|
1940 /*
|
|
|
1941 * MSIE closes a keepalive connection with RST flag
|
|
|
1942 * so we ignore ECONNRESET here.
|
|
|
1943 */
|
|
|
1944
|
|
|
1945 c->log_error = NGX_ERROR_IGNORE_ECONNRESET;
|
|
|
1946 ngx_set_socket_errno(0);
|
|
|
1947
|
|
|
1948 n = c->recv(c, b->last, size);
|
|
|
1949 c->log_error = NGX_ERROR_INFO;
|
|
|
1950
|
|
|
1951 if (n == NGX_AGAIN) {
|
|
58
|
1952 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) {
|
|
24
|
1953 ngx_http_close_connection(c);
|
|
|
1954 }
|
|
|
1955
|
|
0
|
1956 return;
|
|
|
1957 }
|
|
|
1958
|
|
|
1959 if (n == NGX_ERROR) {
|
|
|
1960 ngx_http_close_connection(c);
|
|
|
1961 return;
|
|
|
1962 }
|
|
|
1963
|
|
32
|
1964 c->log->handler = NULL;
|
|
0
|
1965
|
|
|
1966 if (n == 0) {
|
|
|
1967 ngx_log_error(NGX_LOG_INFO, c->log, ngx_socket_errno,
|
|
32
|
1968 "client %V closed keepalive connection", &c->addr_text);
|
|
0
|
1969 ngx_http_close_connection(c);
|
|
|
1970 return;
|
|
|
1971 }
|
|
|
1972
|
|
|
1973 b->last += n;
|
|
32
|
1974
|
|
116
|
1975 #if (NGX_STAT_STUB)
|
|
|
1976 ngx_atomic_fetch_add(ngx_stat_reading, 1);
|
|
|
1977 #endif
|
|
|
1978
|
|
32
|
1979 c->log->handler = ngx_http_log_error;
|
|
|
1980 c->log->action = "reading client request line";
|
|
0
|
1981
|
|
|
1982 ngx_http_init_request(rev);
|
|
|
1983 }
|
|
|
1984
|
|
|
1985
|
|
50
|
1986 static void
|
|
|
1987 ngx_http_set_lingering_close(ngx_http_request_t *r)
|
|
126
|
1988 {
|
|
0
|
1989 ngx_event_t *rev, *wev;
|
|
|
1990 ngx_connection_t *c;
|
|
|
1991 ngx_http_core_loc_conf_t *clcf;
|
|
|
1992
|
|
|
1993 c = r->connection;
|
|
|
1994
|
|
|
1995 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
1996
|
|
|
1997 rev = c->read;
|
|
58
|
1998 rev->handler = ngx_http_lingering_close_handler;
|
|
0
|
1999
|
|
106
|
2000 r->lingering_time = ngx_time() + (time_t) (clcf->lingering_time / 1000);
|
|
0
|
2001 ngx_add_timer(rev, clcf->lingering_timeout);
|
|
|
2002
|
|
58
|
2003 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) {
|
|
0
|
2004 ngx_http_close_request(r, 0);
|
|
|
2005 return;
|
|
|
2006 }
|
|
|
2007
|
|
|
2008 wev = c->write;
|
|
58
|
2009 wev->handler = ngx_http_empty_handler;
|
|
0
|
2010
|
|
132
|
2011 if (wev->active && (ngx_event_flags & NGX_USE_LEVEL_EVENT)) {
|
|
|
2012 if (ngx_del_event(wev, NGX_WRITE_EVENT, 0) == NGX_ERROR) {
|
|
|
2013 ngx_http_close_request(r, 0);
|
|
|
2014 return;
|
|
0
|
2015 }
|
|
|
2016 }
|
|
|
2017
|
|
|
2018 if (ngx_shutdown_socket(c->fd, NGX_WRITE_SHUTDOWN) == -1) {
|
|
|
2019 ngx_connection_error(c, ngx_socket_errno,
|
|
|
2020 ngx_shutdown_socket_n " failed");
|
|
|
2021 ngx_http_close_request(r, 0);
|
|
|
2022 return;
|
|
|
2023 }
|
|
|
2024
|
|
|
2025 if (rev->ready) {
|
|
|
2026 ngx_http_lingering_close_handler(rev);
|
|
|
2027 }
|
|
|
2028 }
|
|
|
2029
|
|
|
2030
|
|
50
|
2031 static void
|
|
|
2032 ngx_http_lingering_close_handler(ngx_event_t *rev)
|
|
0
|
2033 {
|
|
|
2034 ssize_t n;
|
|
|
2035 ngx_msec_t timer;
|
|
|
2036 ngx_connection_t *c;
|
|
|
2037 ngx_http_request_t *r;
|
|
|
2038 ngx_http_core_loc_conf_t *clcf;
|
|
|
2039 u_char buffer[NGX_HTTP_LINGERING_BUFFER_SIZE];
|
|
|
2040
|
|
|
2041 c = rev->data;
|
|
|
2042 r = c->data;
|
|
|
2043
|
|
|
2044 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
|
2045 "http lingering close handler");
|
|
|
2046
|
|
|
2047 if (rev->timedout) {
|
|
126
|
2048 c->timedout = 1;
|
|
0
|
2049 ngx_http_close_request(r, 0);
|
|
|
2050 return;
|
|
|
2051 }
|
|
|
2052
|
|
|
2053 timer = r->lingering_time - ngx_time();
|
|
|
2054 if (timer <= 0) {
|
|
|
2055 ngx_http_close_request(r, 0);
|
|
|
2056 return;
|
|
|
2057 }
|
|
|
2058
|
|
|
2059 do {
|
|
|
2060 n = c->recv(c, buffer, NGX_HTTP_LINGERING_BUFFER_SIZE);
|
|
|
2061
|
|
|
2062 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0, "lingering read: %d", n);
|
|
|
2063
|
|
|
2064 if (n == NGX_ERROR || n == 0) {
|
|
|
2065 ngx_http_close_request(r, 0);
|
|
|
2066 return;
|
|
|
2067 }
|
|
|
2068
|
|
|
2069 } while (rev->ready);
|
|
|
2070
|
|
58
|
2071 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) {
|
|
26
|
2072 ngx_http_close_request(r, 0);
|
|
24
|
2073 return;
|
|
|
2074 }
|
|
|
2075
|
|
0
|
2076 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
2077
|
|
|
2078 timer *= 1000;
|
|
|
2079
|
|
|
2080 if (timer > clcf->lingering_timeout) {
|
|
|
2081 timer = clcf->lingering_timeout;
|
|
|
2082 }
|
|
|
2083
|
|
|
2084 ngx_add_timer(rev, timer);
|
|
|
2085 }
|
|
|
2086
|
|
|
2087
|
|
50
|
2088 void
|
|
|
2089 ngx_http_empty_handler(ngx_event_t *wev)
|
|
0
|
2090 {
|
|
|
2091 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, wev->log, 0, "http empty handler");
|
|
|
2092
|
|
|
2093 return;
|
|
|
2094 }
|
|
|
2095
|
|
|
2096
|
|
58
|
2097 void
|
|
|
2098 ngx_http_request_empty_handler(ngx_http_request_t *r)
|
|
|
2099 {
|
|
|
2100 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
132
|
2101 "http request empty handler");
|
|
58
|
2102
|
|
|
2103 return;
|
|
|
2104 }
|
|
|
2105
|
|
|
2106
|
|
50
|
2107 ngx_int_t
|
|
130
|
2108 ngx_http_send_special(ngx_http_request_t *r, ngx_uint_t flags)
|
|
0
|
2109 {
|
|
|
2110 ngx_buf_t *b;
|
|
|
2111 ngx_chain_t out;
|
|
|
2112
|
|
50
|
2113 b = ngx_calloc_buf(r->pool);
|
|
|
2114 if (b == NULL) {
|
|
0
|
2115 return NGX_ERROR;
|
|
|
2116 }
|
|
|
2117
|
|
130
|
2118 if (flags & NGX_HTTP_LAST) {
|
|
|
2119 b->last_buf = 1;
|
|
|
2120 }
|
|
|
2121
|
|
|
2122 if (flags & NGX_HTTP_FLUSH) {
|
|
|
2123 b->flush = 1;
|
|
|
2124 }
|
|
|
2125
|
|
0
|
2126 out.buf = b;
|
|
|
2127 out.next = NULL;
|
|
|
2128
|
|
|
2129 return ngx_http_output_filter(r, &out);
|
|
|
2130 }
|
|
|
2131
|
|
|
2132
|
|
162
|
2133 static ngx_int_t
|
|
|
2134 ngx_http_post_action(ngx_http_request_t *r)
|
|
|
2135 {
|
|
|
2136 ngx_http_core_loc_conf_t *clcf;
|
|
|
2137
|
|
|
2138 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
2139
|
|
|
2140 if (clcf->post_action.data == NULL) {
|
|
|
2141 return NGX_DECLINED;
|
|
|
2142 }
|
|
|
2143
|
|
172
|
2144 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
2145 "post action: \"%V\"", &clcf->post_action);
|
|
|
2146
|
|
162
|
2147 r->http_version = NGX_HTTP_VERSION_9;
|
|
|
2148 r->header_only = 1;
|
|
178
|
2149 r->post_action = 1;
|
|
162
|
2150
|
|
|
2151 ngx_http_internal_redirect(r, &clcf->post_action, NULL);
|
|
|
2152
|
|
|
2153 return NGX_OK;
|
|
|
2154 }
|
|
|
2155
|
|
|
2156
|
|
|
2157 static void
|
|
58
|
2158 ngx_http_close_request(ngx_http_request_t *r, ngx_int_t error)
|
|
0
|
2159 {
|
|
118
|
2160 ngx_connection_t *c;
|
|
|
2161 ngx_http_cleanup_t *cln;
|
|
|
2162
|
|
|
2163 c = r->connection;
|
|
|
2164 r = r->main;
|
|
|
2165
|
|
|
2166 for (cln = r->cleanup; cln; cln = cln->next) {
|
|
|
2167 if (cln->handler) {
|
|
|
2168 cln->handler(cln->data);
|
|
|
2169 }
|
|
|
2170 }
|
|
|
2171
|
|
|
2172 ngx_http_request_done(r, error);
|
|
|
2173 ngx_http_close_connection(c);
|
|
|
2174 }
|
|
|
2175
|
|
|
2176
|
|
162
|
2177 static void
|
|
118
|
2178 ngx_http_request_done(ngx_http_request_t *r, ngx_int_t error)
|
|
|
2179 {
|
|
|
2180 ngx_log_t *log;
|
|
130
|
2181 ngx_uint_t i, n;
|
|
118
|
2182 struct linger linger;
|
|
|
2183 ngx_http_log_ctx_t *ctx;
|
|
130
|
2184 ngx_http_handler_pt *log_handler;
|
|
118
|
2185 ngx_http_core_loc_conf_t *clcf;
|
|
|
2186 ngx_http_core_main_conf_t *cmcf;
|
|
0
|
2187
|
|
|
2188 log = r->connection->log;
|
|
|
2189
|
|
|
2190 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, log, 0, "http close request");
|
|
|
2191
|
|
|
2192 if (r->pool == NULL) {
|
|
80
|
2193 ngx_log_error(NGX_LOG_ALERT, log, 0, "http request already closed");
|
|
0
|
2194 return;
|
|
|
2195 }
|
|
|
2196
|
|
|
2197 #if (NGX_STAT_STUB)
|
|
116
|
2198
|
|
0
|
2199 if (r->stat_reading) {
|
|
110
|
2200 ngx_atomic_fetch_add(ngx_stat_reading, -1);
|
|
0
|
2201 }
|
|
|
2202
|
|
|
2203 if (r->stat_writing) {
|
|
110
|
2204 ngx_atomic_fetch_add(ngx_stat_writing, -1);
|
|
0
|
2205 }
|
|
116
|
2206
|
|
0
|
2207 #endif
|
|
|
2208
|
|
|
2209 if (error && r->headers_out.status == 0) {
|
|
|
2210 r->headers_out.status = error;
|
|
|
2211 }
|
|
|
2212
|
|
118
|
2213 cmcf = ngx_http_get_module_main_conf(r, ngx_http_core_module);
|
|
|
2214
|
|
130
|
2215 log_handler = cmcf->phases[NGX_HTTP_LOG_PHASE].handlers.elts;
|
|
|
2216 n = cmcf->phases[NGX_HTTP_LOG_PHASE].handlers.nelts;
|
|
|
2217 for (i = 0; i < n; i++) {
|
|
|
2218 log_handler[i](r);
|
|
118
|
2219 }
|
|
0
|
2220
|
|
|
2221 if (r->connection->timedout) {
|
|
|
2222 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
2223
|
|
|
2224 if (clcf->reset_timedout_connection) {
|
|
58
|
2225 linger.l_onoff = 1;
|
|
|
2226 linger.l_linger = 0;
|
|
0
|
2227
|
|
|
2228 if (setsockopt(r->connection->fd, SOL_SOCKET, SO_LINGER,
|
|
58
|
2229 (const void *) &linger, sizeof(struct linger)) == -1)
|
|
0
|
2230 {
|
|
|
2231 ngx_log_error(NGX_LOG_ALERT, log, ngx_socket_errno,
|
|
|
2232 "setsockopt(SO_LINGER) failed");
|
|
|
2233 }
|
|
|
2234 }
|
|
|
2235 }
|
|
|
2236
|
|
58
|
2237 /* the various request strings were allocated from r->pool */
|
|
0
|
2238 ctx = log->data;
|
|
10
|
2239 ctx->request = NULL;
|
|
0
|
2240
|
|
|
2241 r->request_line.len = 0;
|
|
|
2242
|
|
132
|
2243 r->connection->destroyed = 1;
|
|
|
2244
|
|
0
|
2245 ngx_destroy_pool(r->pool);
|
|
|
2246 }
|
|
|
2247
|
|
|
2248
|
|
80
|
2249 static void
|
|
50
|
2250 ngx_http_close_connection(ngx_connection_t *c)
|
|
0
|
2251 {
|
|
28
|
2252 ngx_pool_t *pool;
|
|
|
2253
|
|
0
|
2254 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
|
2255 "close http connection: %d", c->fd);
|
|
|
2256
|
|
88
|
2257 #if (NGX_HTTP_SSL)
|
|
2
|
2258
|
|
|
2259 if (c->ssl) {
|
|
|
2260 if (ngx_ssl_shutdown(c) == NGX_AGAIN) {
|
|
126
|
2261 c->ssl->handler = ngx_http_close_connection;
|
|
2
|
2262 return;
|
|
|
2263 }
|
|
|
2264 }
|
|
|
2265
|
|
|
2266 #endif
|
|
|
2267
|
|
0
|
2268 #if (NGX_STAT_STUB)
|
|
110
|
2269 ngx_atomic_fetch_add(ngx_stat_active, -1);
|
|
0
|
2270 #endif
|
|
|
2271
|
|
132
|
2272 c->destroyed = 1;
|
|
|
2273
|
|
28
|
2274 pool = c->pool;
|
|
|
2275
|
|
0
|
2276 ngx_close_connection(c);
|
|
28
|
2277
|
|
50
|
2278 ngx_destroy_pool(pool);
|
|
0
|
2279 }
|
|
|
2280
|
|
|
2281
|
|
50
|
2282 static u_char *
|
|
|
2283 ngx_http_log_error(ngx_log_t *log, u_char *buf, size_t len)
|
|
0
|
2284 {
|
|
32
|
2285 u_char *p;
|
|
54
|
2286 ngx_http_request_t *r;
|
|
32
|
2287 ngx_http_log_ctx_t *ctx;
|
|
10
|
2288
|
|
32
|
2289 if (log->action) {
|
|
58
|
2290 p = ngx_snprintf(buf, len, " while %s", log->action);
|
|
10
|
2291 len -= p - buf;
|
|
54
|
2292 buf = p;
|
|
10
|
2293 }
|
|
|
2294
|
|
58
|
2295 ctx = log->data;
|
|
|
2296
|
|
54
|
2297 p = ngx_snprintf(buf, len, ", client: %V", ctx->client);
|
|
58
|
2298 len -= p - buf;
|
|
54
|
2299
|
|
|
2300 r = ctx->request;
|
|
|
2301
|
|
58
|
2302 if (r) {
|
|
|
2303 return r->log_handler(r, p, len);
|
|
0
|
2304 }
|
|
10
|
2305
|
|
58
|
2306 return p;
|
|
|
2307 }
|
|
|
2308
|
|
|
2309
|
|
|
2310 static u_char *
|
|
|
2311 ngx_http_log_error_handler(ngx_http_request_t *r, u_char *buf, size_t len)
|
|
|
2312 {
|
|
|
2313 u_char *p;
|
|
54
|
2314
|
|
|
2315 if (r->server_name.data) {
|
|
|
2316 p = ngx_snprintf(buf, len, ", server: %V", &r->server_name);
|
|
52
|
2317 len -= p - buf;
|
|
54
|
2318 buf = p;
|
|
52
|
2319 }
|
|
|
2320
|
|
54
|
2321 if (r->unparsed_uri.data) {
|
|
|
2322 p = ngx_snprintf(buf, len, ", URL: \"%V\"", &r->unparsed_uri);
|
|
|
2323 len -= p - buf;
|
|
|
2324 buf = p;
|
|
|
2325
|
|
|
2326 } else {
|
|
|
2327 if (r->request_line.data == NULL && r->request_start) {
|
|
|
2328 for (p = r->request_start; p < r->header_in->last; p++) {
|
|
|
2329 if (*p == CR || *p == LF) {
|
|
|
2330 break;
|
|
|
2331 }
|
|
|
2332 }
|
|
|
2333
|
|
|
2334 r->request_line.len = p - r->request_start;
|
|
|
2335 r->request_line.data = r->request_start;
|
|
|
2336 }
|
|
|
2337
|
|
|
2338 if (r->request_line.len) {
|
|
|
2339 p = ngx_snprintf(buf, len, ", request: \"%V\"", &r->request_line);
|
|
|
2340 len -= p - buf;
|
|
|
2341 buf = p;
|
|
|
2342 }
|
|
10
|
2343 }
|
|
|
2344
|
|
54
|
2345 return ngx_http_log_error_info(r, buf, len);
|
|
0
|
2346 }
|
|
54
|
2347
|
|
|
2348
|
|
|
2349 u_char *
|
|
|
2350 ngx_http_log_error_info(ngx_http_request_t *r, u_char *buf, size_t len)
|
|
|
2351 {
|
|
|
2352 u_char *p;
|
|
|
2353
|
|
|
2354 if (r->headers_in.host) {
|
|
|
2355 p = ngx_snprintf(buf, len, ", host: \"%V\"",
|
|
|
2356 &r->headers_in.host->value);
|
|
|
2357 len -= p - buf;
|
|
|
2358 buf = p;
|
|
|
2359 }
|
|
|
2360
|
|
|
2361 if (r->headers_in.referer) {
|
|
|
2362 p = ngx_snprintf(buf, len, ", referrer: \"%V\"",
|
|
|
2363 &r->headers_in.referer->value);
|
|
|
2364 buf = p;
|
|
|
2365 }
|
|
|
2366
|
|
|
2367 return buf;
|
|
|
2368 }
|
