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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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35 static void ngx_http_read_discarded_body_handler(ngx_http_request_t *r);
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0
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36 static ngx_int_t ngx_http_read_discarded_body(ngx_http_request_t *r);
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37
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38 static void ngx_http_set_keepalive(ngx_http_request_t *r);
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39 static void ngx_http_keepalive_handler(ngx_event_t *ev);
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40 static void ngx_http_set_lingering_close(ngx_http_request_t *r);
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41 static void ngx_http_lingering_close_handler(ngx_event_t *ev);
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162
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42 static ngx_int_t ngx_http_post_action(ngx_http_request_t *r);
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80
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43 static void ngx_http_close_request(ngx_http_request_t *r, ngx_int_t error);
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118
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44 static void ngx_http_request_done(ngx_http_request_t *r, ngx_int_t error);
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80
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45 static void ngx_http_close_connection(ngx_connection_t *c);
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0
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46
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32
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47 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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48 static u_char *ngx_http_log_error_handler(ngx_http_request_t *r, u_char *buf,
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49 size_t len);
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0
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50
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88
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51 #if (NGX_HTTP_SSL)
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52 static void ngx_http_ssl_handshake(ngx_event_t *rev);
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96
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53 static void ngx_http_ssl_handshake_handler(ngx_connection_t *c);
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88
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54 #endif
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55
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0
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56
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54
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57 static char *ngx_http_client_errors[] = {
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58
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59 /* NGX_HTTP_PARSE_INVALID_METHOD */
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60 "client sent invalid method",
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61
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62 /* NGX_HTTP_PARSE_INVALID_REQUEST */
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63 "client sent invalid request",
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64
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65 /* NGX_HTTP_PARSE_INVALID_09_METHOD */
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66 "client sent invalid method in HTTP/0.9 request"
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0
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67 };
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68
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69
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70 ngx_http_header_t ngx_http_headers_in[] = {
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58
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71 { ngx_string("Host"), offsetof(ngx_http_headers_in_t, host),
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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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74 { ngx_string("Connection"), offsetof(ngx_http_headers_in_t, connection),
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72
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75 ngx_http_process_unique_header_line },
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58
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76
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0
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77 { ngx_string("If-Modified-Since"),
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58
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78 offsetof(ngx_http_headers_in_t, if_modified_since),
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79 ngx_http_process_header_line },
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80
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81 { ngx_string("User-Agent"), offsetof(ngx_http_headers_in_t, user_agent),
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82 ngx_http_process_header_line },
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83
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84 { ngx_string("Referer"), offsetof(ngx_http_headers_in_t, referer),
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85 ngx_http_process_header_line },
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86
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0
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87 { ngx_string("Content-Length"),
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58
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88 offsetof(ngx_http_headers_in_t, content_length),
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72
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89 ngx_http_process_unique_header_line },
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58
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90
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28
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91 { ngx_string("Content-Type"),
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58
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92 offsetof(ngx_http_headers_in_t, content_type),
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93 ngx_http_process_header_line },
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94
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95 { ngx_string("Range"), offsetof(ngx_http_headers_in_t, range),
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96 ngx_http_process_header_line },
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97
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130
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98 { ngx_string("Transfer-Encoding"),
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99 offsetof(ngx_http_headers_in_t, transfer_encoding),
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100 ngx_http_process_header_line },
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101
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0
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102 #if (NGX_HTTP_GZIP)
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103 { ngx_string("Accept-Encoding"),
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58
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104 offsetof(ngx_http_headers_in_t, accept_encoding),
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105 ngx_http_process_header_line },
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106
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107 { ngx_string("Via"), offsetof(ngx_http_headers_in_t, via),
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108 ngx_http_process_header_line },
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0
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109 #endif
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110
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111 { ngx_string("Authorization"),
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58
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112 offsetof(ngx_http_headers_in_t, authorization),
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72
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113 ngx_http_process_unique_header_line },
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58
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114
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115 { ngx_string("Keep-Alive"), offsetof(ngx_http_headers_in_t, keep_alive),
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116 ngx_http_process_header_line },
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0
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117
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122
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118 #if (NGX_HTTP_PROXY || NGX_HTTP_REALIP)
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0
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119 { ngx_string("X-Forwarded-For"),
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120 offsetof(ngx_http_headers_in_t, x_forwarded_for),
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121 ngx_http_process_header_line },
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0
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122 #endif
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28
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123
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122
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124 #if (NGX_HTTP_REALIP)
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125 { ngx_string("X-Real-IP"),
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126 offsetof(ngx_http_headers_in_t, x_real_ip),
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127 ngx_http_process_header_line },
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128 #endif
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129
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38
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130 #if (NGX_HTTP_HEADERS)
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58
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131 { ngx_string("Accept"), offsetof(ngx_http_headers_in_t, accept),
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132 ngx_http_process_header_line },
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133
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38
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134 { ngx_string("Accept-Language"),
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58
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135 offsetof(ngx_http_headers_in_t, accept_language),
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136 ngx_http_process_header_line },
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38
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137 #endif
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138
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58
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139 { ngx_string("Cookie"), 0, ngx_http_process_cookie },
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140
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141 { ngx_null_string, 0, NULL }
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0
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142 };
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143
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144
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50
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145 void
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146 ngx_http_init_connection(ngx_connection_t *c)
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0
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147 {
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148 ngx_event_t *rev;
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149 ngx_http_log_ctx_t *ctx;
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150
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50
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151 ctx = ngx_palloc(c->pool, sizeof(ngx_http_log_ctx_t));
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152 if (ctx == NULL) {
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0
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153 ngx_http_close_connection(c);
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154 return;
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155 }
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156
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10
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157 ctx->client = &c->addr_text;
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158 ctx->request = NULL;
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32
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159
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160 c->log->connection = c->number;
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161 c->log->handler = ngx_http_log_error;
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0
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162 c->log->data = ctx;
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32
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163 c->log->action = "reading client request line";
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164
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0
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165 c->log_error = NGX_ERROR_INFO;
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166
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167 rev = c->read;
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58
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168 rev->handler = ngx_http_init_request;
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118
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169 c->write->handler = ngx_http_empty_handler;
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0
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170
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116
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171 #if (NGX_STAT_STUB)
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172 ngx_atomic_fetch_add(ngx_stat_reading, 1);
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173 #endif
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174
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0
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175 if (rev->ready) {
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176 /* the deferred accept(), rtsig, aio, iocp */
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177
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160
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178 if (ngx_use_accept_mutex) {
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112
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179 ngx_post_event(rev, &ngx_posted_events);
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0
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180 return;
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181 }
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182
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183 ngx_http_init_request(rev);
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184 return;
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185 }
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186
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187 ngx_add_timer(rev, c->listening->post_accept_timeout);
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188
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189 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) {
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116
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190 #if (NGX_STAT_STUB)
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191 ngx_atomic_fetch_add(ngx_stat_reading, -1);
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192 #endif
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0
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193 ngx_http_close_connection(c);
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194 return;
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195 }
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196 }
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197
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198
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50
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199 static
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200 void ngx_http_init_request(ngx_event_t *rev)
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0
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201 {
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122
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202 ngx_uint_t i;
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203 socklen_t len;
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204 struct sockaddr_in sin;
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205 ngx_connection_t *c;
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206 ngx_http_request_t *r;
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142
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207 ngx_http_in_port_t *hip;
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208 ngx_http_in_addr_t *hia;
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122
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209 ngx_http_log_ctx_t *ctx;
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210 ngx_http_connection_t *hc;
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211 ngx_http_core_srv_conf_t *cscf;
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212 ngx_http_core_loc_conf_t *clcf;
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213 ngx_http_core_main_conf_t *cmcf;
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0
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214 #if (NGX_HTTP_SSL)
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122
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215 ngx_http_ssl_srv_conf_t *sscf;
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0
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216 #endif
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217
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116
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218 #if (NGX_STAT_STUB)
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219 ngx_atomic_fetch_add(ngx_stat_reading, -1);
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220 #endif
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221
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0
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222 c = rev->data;
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223
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224 if (rev->timedout) {
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225 ngx_log_error(NGX_LOG_INFO, c->log, NGX_ETIMEDOUT, "client timed out");
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226
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227 ngx_http_close_connection(c);
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228 return;
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229 }
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230
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231 hc = c->data;
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232
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116
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233 if (hc == NULL) {
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50
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234 hc = ngx_pcalloc(c->pool, sizeof(ngx_http_connection_t));
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235 if (hc == NULL) {
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0
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236 ngx_http_close_connection(c);
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237 return;
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238 }
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239 }
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240
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241 r = hc->request;
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242
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243 if (r) {
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244 ngx_memzero(r, sizeof(ngx_http_request_t));
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245
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246 r->pipeline = hc->pipeline;
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247
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248 if (hc->nbusy) {
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249 r->header_in = hc->busy[0];
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250 }
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251
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252 } else {
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50
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253 r = ngx_pcalloc(c->pool, sizeof(ngx_http_request_t));
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254 if (r == NULL) {
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0
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255 ngx_http_close_connection(c);
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256 return;
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257 }
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258
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259 hc->request = r;
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260 }
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261
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262 c->data = r;
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263 r->http_connection = hc;
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264
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265 c->sent = 0;
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266 r->signature = NGX_HTTP_MODULE;
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267
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268 /* find the server configuration for the address:port */
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269
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270 /* AF_INET only */
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271
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142
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272 hip = c->servers;
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273 hia = hip->addrs;
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274
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275 r->port = hip->port;
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276 r->port_text = &hip->port_text;
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0
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277
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278 i = 0;
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279
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142
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280 if (hip->naddrs > 1) {
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0
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281
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282 /*
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283 * There are several addresses on this port and one of them
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284 * is the "*:port" wildcard so getsockname() is needed to determine
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285 * the server address.
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286 *
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287 * AcceptEx() already gave this address.
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288 */
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289
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10
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290 #if (NGX_WIN32)
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0
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291 if (c->local_sockaddr) {
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292 r->in_addr =
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293 ((struct sockaddr_in *) c->local_sockaddr)->sin_addr.s_addr;
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294
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28
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295 } else
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0
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296 #endif
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28
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297 {
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0
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298 len = sizeof(struct sockaddr_in);
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28
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299 if (getsockname(c->fd, (struct sockaddr *) &sin, &len) == -1) {
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0
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300 ngx_connection_error(c, ngx_socket_errno,
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301 "getsockname() failed");
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302 ngx_http_close_connection(c);
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303 return;
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304 }
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305
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28
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306 r->in_addr = sin.sin_addr.s_addr;
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0
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307 }
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308
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309 /* the last in_port->addrs address is "*" */
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310
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142
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311 for ( /* void */ ; i < hip->naddrs - 1; i++) {
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312 if (hia[i].addr == r->in_addr) {
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0
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313 break;
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314 }
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315 }
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316
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317 } else {
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142
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318 r->in_addr = hia[0].addr;
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0
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319 }
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320
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142
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321 r->virtual_names = hia[i].virtual_names;
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0
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322
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323 /* the default server configuration for the address:port */
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142
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324 cscf = hia[i].core_srv_conf;
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0
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325
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326 r->main_conf = cscf->ctx->main_conf;
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327 r->srv_conf = cscf->ctx->srv_conf;
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328 r->loc_conf = cscf->ctx->loc_conf;
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329
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142
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330 r->server_name = cscf->server_name;
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331
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58
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332 rev->handler = ngx_http_process_request_line;
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0
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333
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334 #if (NGX_HTTP_SSL)
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335
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336 sscf = ngx_http_get_module_srv_conf(r, ngx_http_ssl_module);
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337 if (sscf->enable) {
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338
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339 if (c->ssl == NULL) {
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96
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340 if (ngx_ssl_create_connection(&sscf->ssl, c, NGX_SSL_BUFFER)
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56
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341 == NGX_ERROR)
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0
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342 {
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343 ngx_http_close_connection(c);
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344 return;
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345 }
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346
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58
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347 rev->handler = ngx_http_ssl_handshake;
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0
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348 }
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349
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62
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350 r->main_filter_need_in_memory = 1;
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0
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351 }
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352
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353 #endif
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354
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355 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
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356 c->log->file = clcf->err_log->file;
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357 if (!(c->log->log_level & NGX_LOG_DEBUG_CONNECTION)) {
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358 c->log->log_level = clcf->err_log->log_level;
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359 }
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360
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361 if (c->buffer == NULL) {
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362 c->buffer = ngx_create_temp_buf(c->pool,
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363 cscf->client_header_buffer_size);
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364 if (c->buffer == NULL) {
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365 ngx_http_close_connection(c);
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366 return;
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367 }
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368 }
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369
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370 if (r->header_in == NULL) {
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371 r->header_in = c->buffer;
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|
|
372 }
|
|
|
373
|
|
50
|
374 r->pool = ngx_create_pool(cscf->request_pool_size, c->log);
|
|
|
375 if (r->pool == NULL) {
|
|
0
|
376 ngx_http_close_connection(c);
|
|
|
377 return;
|
|
|
378 }
|
|
|
379
|
|
|
380
|
|
|
381 if (ngx_list_init(&r->headers_out.headers, r->pool, 20,
|
|
130
|
382 sizeof(ngx_table_elt_t))
|
|
|
383 == NGX_ERROR)
|
|
0
|
384 {
|
|
|
385 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
386 return;
|
|
|
387 }
|
|
|
388
|
|
|
389 r->ctx = ngx_pcalloc(r->pool, sizeof(void *) * ngx_http_max_module);
|
|
|
390 if (r->ctx == NULL) {
|
|
|
391 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
392 return;
|
|
|
393 }
|
|
|
394
|
|
122
|
395 cmcf = ngx_http_get_module_main_conf(r, ngx_http_core_module);
|
|
|
396
|
|
|
397 r->variables = ngx_pcalloc(r->pool, cmcf->variables.nelts
|
|
|
398 * sizeof(ngx_http_variable_value_t));
|
|
|
399 if (r->variables == NULL) {
|
|
|
400 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
401 return;
|
|
|
402 }
|
|
|
403
|
|
0
|
404 c->single_connection = 1;
|
|
132
|
405 c->destroyed = 0;
|
|
|
406
|
|
0
|
407 r->connection = c;
|
|
|
408
|
|
102
|
409 r->main = r;
|
|
|
410
|
|
46
|
411 r->start_time = ngx_time();
|
|
|
412
|
|
0
|
413 r->headers_in.content_length_n = -1;
|
|
|
414 r->headers_in.keep_alive_n = -1;
|
|
|
415 r->headers_out.content_length_n = -1;
|
|
|
416 r->headers_out.last_modified_time = -1;
|
|
|
417
|
|
|
418 r->http_state = NGX_HTTP_READING_REQUEST_STATE;
|
|
|
419
|
|
54
|
420 ctx = c->log->data;
|
|
|
421 ctx->request = r;
|
|
58
|
422 r->log_handler = ngx_http_log_error_handler;
|
|
54
|
423
|
|
0
|
424 #if (NGX_STAT_STUB)
|
|
110
|
425 ngx_atomic_fetch_add(ngx_stat_reading, 1);
|
|
26
|
426 r->stat_reading = 1;
|
|
110
|
427 ngx_atomic_fetch_add(ngx_stat_requests, 1);
|
|
0
|
428 #endif
|
|
|
429
|
|
58
|
430 rev->handler(rev);
|
|
0
|
431 }
|
|
|
432
|
|
|
433
|
|
|
434 #if (NGX_HTTP_SSL)
|
|
|
435
|
|
50
|
436 static void
|
|
|
437 ngx_http_ssl_handshake(ngx_event_t *rev)
|
|
0
|
438 {
|
|
10
|
439 u_char buf[1];
|
|
|
440 ssize_t n;
|
|
0
|
441 ngx_int_t rc;
|
|
|
442 ngx_connection_t *c;
|
|
|
443 ngx_http_request_t *r;
|
|
|
444
|
|
|
445 c = rev->data;
|
|
|
446 r = c->data;
|
|
|
447
|
|
|
448 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, rev->log, 0,
|
|
|
449 "http check ssl handshake");
|
|
|
450
|
|
|
451 if (rev->timedout) {
|
|
54
|
452 ngx_log_error(NGX_LOG_INFO, c->log, NGX_ETIMEDOUT, "client timed out");
|
|
|
453 c->timedout = 1;
|
|
|
454 ngx_http_close_request(r, NGX_HTTP_REQUEST_TIME_OUT);
|
|
0
|
455 return;
|
|
|
456 }
|
|
|
457
|
|
132
|
458 n = recv(c->fd, (char *) buf, 1, MSG_PEEK);
|
|
0
|
459
|
|
|
460 if (n == -1 && ngx_socket_errno == NGX_EAGAIN) {
|
|
|
461 return;
|
|
|
462 }
|
|
|
463
|
|
|
464 if (n == 1) {
|
|
|
465 if (buf[0] == 0x80 /* SSLv2 */ || buf[0] == 0x16 /* SSLv3/TLSv1 */) {
|
|
|
466 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, rev->log, 0,
|
|
10
|
467 "https ssl handshake: 0x%02Xd", buf[0]);
|
|
0
|
468
|
|
|
469 rc = ngx_ssl_handshake(c);
|
|
|
470
|
|
96
|
471 if (rc == NGX_AGAIN) {
|
|
|
472 c->ssl->handler = ngx_http_ssl_handshake_handler;
|
|
0
|
473 return;
|
|
|
474 }
|
|
|
475
|
|
96
|
476 ngx_http_ssl_handshake_handler(c);
|
|
|
477
|
|
|
478 return;
|
|
0
|
479
|
|
|
480 } else {
|
|
|
481 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, rev->log, 0,
|
|
|
482 "plain http");
|
|
|
483
|
|
|
484 r->plain_http = 1;
|
|
|
485 }
|
|
|
486 }
|
|
|
487
|
|
58
|
488 rev->handler = ngx_http_process_request_line;
|
|
0
|
489 ngx_http_process_request_line(rev);
|
|
|
490 }
|
|
|
491
|
|
96
|
492
|
|
|
493 static void
|
|
|
494 ngx_http_ssl_handshake_handler(ngx_connection_t *c)
|
|
|
495 {
|
|
|
496 ngx_http_request_t *r;
|
|
|
497
|
|
|
498 if (c->ssl->handshaked) {
|
|
|
499
|
|
|
500 /*
|
|
|
501 * The majority of browsers do not send the "close notify" alert.
|
|
|
502 * Among them are MSIE, old Mozilla, Netscape 4, Konqueror,
|
|
|
503 * and Links. And what is more, MSIE ignores the server's alert.
|
|
|
504 *
|
|
|
505 * Opera and recent Mozilla send the alert.
|
|
|
506 */
|
|
|
507
|
|
|
508 c->ssl->no_wait_shutdown = 1;
|
|
|
509
|
|
|
510 c->read->handler = ngx_http_process_request_line;
|
|
|
511 /* STUB: epoll edge */ c->write->handler = ngx_http_empty_handler;
|
|
|
512
|
|
|
513 ngx_http_process_request_line(c->read);
|
|
|
514
|
|
|
515 return;
|
|
|
516 }
|
|
|
517
|
|
|
518 r = c->data;
|
|
|
519
|
|
|
520 ngx_http_close_request(r, NGX_HTTP_BAD_REQUEST);
|
|
|
521
|
|
|
522 return;
|
|
|
523 }
|
|
|
524
|
|
|
525
|
|
0
|
526 #endif
|
|
|
527
|
|
|
528
|
|
50
|
529 static void
|
|
|
530 ngx_http_process_request_line(ngx_event_t *rev)
|
|
0
|
531 {
|
|
|
532 ssize_t n;
|
|
|
533 ngx_int_t rc, rv;
|
|
|
534 ngx_connection_t *c;
|
|
|
535 ngx_http_request_t *r;
|
|
|
536 ngx_http_log_ctx_t *ctx;
|
|
|
537
|
|
|
538 c = rev->data;
|
|
|
539 r = c->data;
|
|
|
540
|
|
|
541 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, rev->log, 0,
|
|
|
542 "http process request line");
|
|
|
543
|
|
|
544 if (rev->timedout) {
|
|
54
|
545 ngx_log_error(NGX_LOG_INFO, c->log, NGX_ETIMEDOUT, "client timed out");
|
|
|
546 c->timedout = 1;
|
|
|
547 ngx_http_close_request(r, NGX_HTTP_REQUEST_TIME_OUT);
|
|
0
|
548 return;
|
|
|
549 }
|
|
|
550
|
|
|
551 rc = NGX_AGAIN;
|
|
|
552
|
|
|
553 for ( ;; ) {
|
|
|
554
|
|
|
555 if (rc == NGX_AGAIN) {
|
|
|
556 n = ngx_http_read_request_header(r);
|
|
|
557
|
|
|
558 if (n == NGX_AGAIN || n == NGX_ERROR) {
|
|
|
559 return;
|
|
|
560 }
|
|
|
561 }
|
|
|
562
|
|
|
563 rc = ngx_http_parse_request_line(r, r->header_in);
|
|
|
564
|
|
|
565 if (rc == NGX_OK) {
|
|
|
566
|
|
|
567 /* the request line has been parsed successfully */
|
|
|
568
|
|
10
|
569 r->request_line.len = r->request_end - r->request_start;
|
|
|
570 r->request_line.data = r->request_start;
|
|
|
571
|
|
0
|
572
|
|
|
573 if (r->args_start) {
|
|
|
574 r->uri.len = r->args_start - 1 - r->uri_start;
|
|
|
575 } else {
|
|
|
576 r->uri.len = r->uri_end - r->uri_start;
|
|
|
577 }
|
|
|
578
|
|
18
|
579
|
|
2
|
580 if (r->complex_uri || r->quoted_uri) {
|
|
10
|
581
|
|
50
|
582 r->uri.data = ngx_palloc(r->pool, r->uri.len + 1);
|
|
|
583 if (r->uri.data == NULL) {
|
|
10
|
584 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
585 return;
|
|
|
586 }
|
|
|
587
|
|
0
|
588 rc = ngx_http_parse_complex_uri(r);
|
|
|
589
|
|
54
|
590 if (rc == NGX_HTTP_PARSE_INVALID_REQUEST) {
|
|
|
591 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
|
592 "client sent invalid request");
|
|
|
593 ngx_http_finalize_request(r, NGX_HTTP_BAD_REQUEST);
|
|
0
|
594 return;
|
|
|
595 }
|
|
|
596
|
|
|
597 } else {
|
|
10
|
598 r->uri.data = r->uri_start;
|
|
0
|
599 }
|
|
|
600
|
|
18
|
601
|
|
10
|
602 r->unparsed_uri.len = r->uri_end - r->uri_start;
|
|
|
603 r->unparsed_uri.data = r->uri_start;
|
|
|
604
|
|
0
|
605
|
|
58
|
606 r->method_name.len = r->method_end - r->request_start + 1;
|
|
|
607 r->method_name.data = r->request_line.data;
|
|
0
|
608
|
|
10
|
609
|
|
28
|
610 if (r->http_protocol.data) {
|
|
|
611 r->http_protocol.len = r->request_end - r->http_protocol.data;
|
|
|
612 }
|
|
|
613
|
|
|
614
|
|
0
|
615 if (r->uri_ext) {
|
|
|
616 if (r->args_start) {
|
|
|
617 r->exten.len = r->args_start - 1 - r->uri_ext;
|
|
|
618 } else {
|
|
|
619 r->exten.len = r->uri_end - r->uri_ext;
|
|
|
620 }
|
|
|
621
|
|
10
|
622 r->exten.data = r->uri_ext;
|
|
0
|
623 }
|
|
|
624
|
|
10
|
625
|
|
0
|
626 if (r->args_start && r->uri_end > r->args_start) {
|
|
|
627 r->args.len = r->uri_end - r->args_start;
|
|
10
|
628 r->args.data = r->args_start;
|
|
0
|
629 }
|
|
|
630
|
|
10
|
631
|
|
|
632 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
|
633 "http request line: \"%V\"", &r->request_line);
|
|
|
634
|
|
0
|
635 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
10
|
636 "http uri: \"%V\"", &r->uri);
|
|
0
|
637
|
|
|
638 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
10
|
639 "http args: \"%V\"", &r->args);
|
|
0
|
640
|
|
|
641 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
10
|
642 "http exten: \"%V\"", &r->exten);
|
|
|
643
|
|
0
|
644 if (r->http_version < NGX_HTTP_VERSION_10) {
|
|
86
|
645
|
|
|
646 if (rev->timer_set) {
|
|
|
647 ngx_del_timer(rev);
|
|
|
648 }
|
|
|
649
|
|
|
650 #if (NGX_STAT_STUB)
|
|
110
|
651 ngx_atomic_fetch_add(ngx_stat_reading, -1);
|
|
86
|
652 r->stat_reading = 0;
|
|
110
|
653 ngx_atomic_fetch_add(ngx_stat_writing, 1);
|
|
86
|
654 r->stat_writing = 1;
|
|
|
655 #endif
|
|
|
656
|
|
|
657 rev->handler = ngx_http_request_handler;
|
|
|
658 c->write->handler = ngx_http_request_handler;
|
|
58
|
659 r->read_event_handler = ngx_http_block_read;
|
|
86
|
660
|
|
0
|
661 ngx_http_handler(r);
|
|
86
|
662
|
|
0
|
663 return;
|
|
|
664 }
|
|
|
665
|
|
|
666
|
|
|
667 if (ngx_list_init(&r->headers_in.headers, r->pool, 20,
|
|
130
|
668 sizeof(ngx_table_elt_t))
|
|
|
669 == NGX_ERROR)
|
|
0
|
670 {
|
|
|
671 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
672 return;
|
|
|
673 }
|
|
|
674
|
|
|
675
|
|
48
|
676 if (ngx_array_init(&r->headers_in.cookies, r->pool, 2,
|
|
130
|
677 sizeof(ngx_table_elt_t *))
|
|
|
678 == NGX_ERROR)
|
|
0
|
679 {
|
|
|
680 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
681 return;
|
|
|
682 }
|
|
|
683
|
|
32
|
684 c->log->action = "reading client request headers";
|
|
0
|
685
|
|
58
|
686 rev->handler = ngx_http_process_request_headers;
|
|
0
|
687 ngx_http_process_request_headers(rev);
|
|
|
688
|
|
|
689 return;
|
|
54
|
690 }
|
|
|
691
|
|
|
692 if (rc != NGX_AGAIN) {
|
|
0
|
693
|
|
|
694 /* there was error while a request line parsing */
|
|
|
695
|
|
54
|
696 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
|
697 ngx_http_client_errors[rc - NGX_HTTP_CLIENT_ERROR]);
|
|
|
698 ngx_http_finalize_request(r, NGX_HTTP_BAD_REQUEST);
|
|
0
|
699 return;
|
|
|
700 }
|
|
|
701
|
|
|
702 /* NGX_AGAIN: a request line parsing is still incomplete */
|
|
|
703
|
|
|
704 if (r->header_in->pos == r->header_in->end) {
|
|
|
705
|
|
|
706 rv = ngx_http_alloc_large_header_buffer(r, 1);
|
|
|
707
|
|
|
708 if (rv == NGX_ERROR) {
|
|
|
709 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
710 return;
|
|
|
711 }
|
|
|
712
|
|
|
713 if (rv == NGX_DECLINED) {
|
|
54
|
714 ctx = c->log->data;
|
|
|
715 ctx->request = r;
|
|
|
716
|
|
|
717 r->request_line.len = r->header_in->end - r->request_start;
|
|
|
718 r->request_line.data = r->request_start;
|
|
|
719
|
|
|
720 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
|
721 "client sent too long URI");
|
|
|
722 ngx_http_finalize_request(r, NGX_HTTP_REQUEST_URI_TOO_LARGE);
|
|
0
|
723 return;
|
|
|
724 }
|
|
|
725 }
|
|
|
726 }
|
|
|
727 }
|
|
|
728
|
|
|
729
|
|
50
|
730 static void
|
|
|
731 ngx_http_process_request_headers(ngx_event_t *rev)
|
|
0
|
732 {
|
|
56
|
733 ssize_t n;
|
|
|
734 ngx_int_t rc, rv;
|
|
|
735 ngx_uint_t key;
|
|
|
736 ngx_str_t header;
|
|
58
|
737 ngx_table_elt_t *h;
|
|
56
|
738 ngx_connection_t *c;
|
|
|
739 ngx_http_header_t *hh;
|
|
|
740 ngx_http_request_t *r;
|
|
60
|
741 ngx_http_core_srv_conf_t *cscf;
|
|
56
|
742 ngx_http_core_main_conf_t *cmcf;
|
|
0
|
743
|
|
|
744 c = rev->data;
|
|
|
745 r = c->data;
|
|
|
746
|
|
|
747 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, rev->log, 0,
|
|
|
748 "http process request header line");
|
|
|
749
|
|
|
750 if (rev->timedout) {
|
|
54
|
751 ngx_log_error(NGX_LOG_INFO, c->log, NGX_ETIMEDOUT, "client timed out");
|
|
|
752 c->timedout = 1;
|
|
|
753 ngx_http_close_request(r, NGX_HTTP_REQUEST_TIME_OUT);
|
|
0
|
754 return;
|
|
|
755 }
|
|
|
756
|
|
56
|
757 cmcf = ngx_http_get_module_main_conf(r, ngx_http_core_module);
|
|
60
|
758 cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
|
|
56
|
759 hh = (ngx_http_header_t *) cmcf->headers_in_hash.buckets;
|
|
|
760
|
|
0
|
761 rc = NGX_AGAIN;
|
|
|
762
|
|
|
763 for ( ;; ) {
|
|
|
764
|
|
|
765 if (rc == NGX_AGAIN) {
|
|
|
766
|
|
|
767 if (r->header_in->pos == r->header_in->end) {
|
|
|
768
|
|
|
769 rv = ngx_http_alloc_large_header_buffer(r, 0);
|
|
|
770
|
|
|
771 if (rv == NGX_ERROR) {
|
|
|
772 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
773 return;
|
|
|
774 }
|
|
|
775
|
|
|
776 if (rv == NGX_DECLINED) {
|
|
54
|
777 header.len = r->header_in->end - r->header_name_start;
|
|
|
778 header.data = r->header_name_start;
|
|
80
|
779
|
|
|
780 if (header.len > NGX_MAX_ERROR_STR - 300) {
|
|
|
781 header.len = NGX_MAX_ERROR_STR - 300;
|
|
|
782 header.data[header.len++] = '.';
|
|
|
783 header.data[header.len++] = '.';
|
|
|
784 header.data[header.len++] = '.';
|
|
|
785 }
|
|
|
786
|
|
54
|
787 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
|
788 "client sent too long header line: \"%V\"",
|
|
|
789 &header);
|
|
|
790 ngx_http_close_request(r, NGX_HTTP_BAD_REQUEST);
|
|
0
|
791 return;
|
|
|
792 }
|
|
|
793 }
|
|
|
794
|
|
|
795 n = ngx_http_read_request_header(r);
|
|
|
796
|
|
|
797 if (n == NGX_AGAIN || n == NGX_ERROR) {
|
|
|
798 return;
|
|
|
799 }
|
|
|
800 }
|
|
|
801
|
|
|
802 rc = ngx_http_parse_header_line(r, r->header_in);
|
|
|
803
|
|
|
804 if (rc == NGX_OK) {
|
|
|
805
|
|
60
|
806 if (r->invalid_header && cscf->ignore_invalid_headers) {
|
|
52
|
807
|
|
|
808 /* there was error while a header line parsing */
|
|
|
809
|
|
|
810 header.len = r->header_end - r->header_name_start;
|
|
|
811 header.data = r->header_name_start;
|
|
|
812
|
|
54
|
813 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
|
814 "client sent invalid header line: \"%V\"",
|
|
52
|
815 &header);
|
|
|
816 continue;
|
|
|
817 }
|
|
|
818
|
|
0
|
819 /* a header line has been parsed successfully */
|
|
|
820
|
|
50
|
821 h = ngx_list_push(&r->headers_in.headers);
|
|
|
822 if (h == NULL) {
|
|
0
|
823 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
824 return;
|
|
|
825 }
|
|
|
826
|
|
56
|
827 h->hash = r->header_hash;
|
|
|
828
|
|
0
|
829 h->key.len = r->header_name_end - r->header_name_start;
|
|
|
830 h->key.data = r->header_name_start;
|
|
|
831 h->key.data[h->key.len] = '\0';
|
|
|
832
|
|
|
833 h->value.len = r->header_end - r->header_start;
|
|
|
834 h->value.data = r->header_start;
|
|
|
835 h->value.data[h->value.len] = '\0';
|
|
|
836
|
|
58
|
837 key = h->hash % cmcf->headers_in_hash.hash_size;
|
|
|
838
|
|
|
839 if (hh[key].name.len == h->key.len
|
|
|
840 && ngx_strcasecmp(hh[key].name.data, h->key.data) == 0)
|
|
0
|
841 {
|
|
58
|
842 if (hh[key].handler(r, h, hh[key].offset) != NGX_OK) {
|
|
0
|
843 return;
|
|
|
844 }
|
|
|
845 }
|
|
|
846
|
|
|
847 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
10
|
848 "http header: \"%V: %V\"",
|
|
|
849 &h->key, &h->value);
|
|
0
|
850
|
|
|
851 continue;
|
|
54
|
852 }
|
|
|
853
|
|
|
854 if (rc == NGX_HTTP_PARSE_HEADER_DONE) {
|
|
0
|
855
|
|
|
856 /* a whole header has been parsed successfully */
|
|
|
857
|
|
|
858 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
859 "http header done");
|
|
|
860
|
|
24
|
861 r->request_length += r->header_in->pos - r->header_in->start;
|
|
|
862
|
|
0
|
863 r->http_state = NGX_HTTP_PROCESS_REQUEST_STATE;
|
|
|
864
|
|
|
865 rc = ngx_http_process_request_header(r);
|
|
|
866
|
|
|
867 if (rc != NGX_OK) {
|
|
|
868 return;
|
|
|
869 }
|
|
|
870
|
|
|
871 if (rev->timer_set) {
|
|
|
872 ngx_del_timer(rev);
|
|
|
873 }
|
|
|
874
|
|
|
875 #if (NGX_STAT_STUB)
|
|
110
|
876 ngx_atomic_fetch_add(ngx_stat_reading, -1);
|
|
0
|
877 r->stat_reading = 0;
|
|
110
|
878 ngx_atomic_fetch_add(ngx_stat_writing, 1);
|
|
0
|
879 r->stat_writing = 1;
|
|
|
880 #endif
|
|
|
881
|
|
58
|
882 rev->handler = ngx_http_request_handler;
|
|
|
883 c->write->handler = ngx_http_request_handler;
|
|
|
884 r->read_event_handler = ngx_http_block_read;
|
|
|
885
|
|
0
|
886 ngx_http_handler(r);
|
|
86
|
887
|
|
0
|
888 return;
|
|
54
|
889 }
|
|
|
890
|
|
|
891 if (rc == NGX_AGAIN) {
|
|
|
892
|
|
|
893 /* a header line parsing is still not complete */
|
|
|
894
|
|
|
895 continue;
|
|
0
|
896 }
|
|
|
897
|
|
54
|
898 /* rc == NGX_HTTP_PARSE_INVALID_HEADER: "\r" is not followed by "\n" */
|
|
|
899
|
|
|
900 header.len = r->header_end - r->header_name_start;
|
|
|
901 header.data = r->header_name_start;
|
|
|
902 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
|
903 "client sent invalid header line: \"%V\\r...\"",
|
|
|
904 &header);
|
|
|
905 ngx_http_close_request(r, NGX_HTTP_BAD_REQUEST);
|
|
|
906 return;
|
|
0
|
907 }
|
|
|
908 }
|
|
|
909
|
|
|
910
|
|
50
|
911 static ssize_t
|
|
|
912 ngx_http_read_request_header(ngx_http_request_t *r)
|
|
0
|
913 {
|
|
|
914 ssize_t n;
|
|
|
915 ngx_event_t *rev;
|
|
|
916 ngx_http_core_srv_conf_t *cscf;
|
|
|
917
|
|
|
918 rev = r->connection->read;
|
|
|
919
|
|
|
920 n = r->header_in->last - r->header_in->pos;
|
|
|
921
|
|
|
922 if (n > 0) {
|
|
|
923 return n;
|
|
|
924 }
|
|
|
925
|
|
72
|
926 if (rev->ready) {
|
|
|
927 n = r->connection->recv(r->connection, r->header_in->last,
|
|
|
928 r->header_in->end - r->header_in->last);
|
|
|
929 } else {
|
|
|
930 n = NGX_AGAIN;
|
|
0
|
931 }
|
|
|
932
|
|
|
933 if (n == NGX_AGAIN) {
|
|
|
934 if (!r->header_timeout_set) {
|
|
|
935 cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
|
|
|
936 ngx_add_timer(rev, cscf->client_header_timeout);
|
|
|
937 r->header_timeout_set = 1;
|
|
|
938 }
|
|
|
939
|
|
|
940 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) {
|
|
|
941 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
942 return NGX_ERROR;
|
|
|
943 }
|
|
|
944
|
|
|
945 return NGX_AGAIN;
|
|
|
946 }
|
|
|
947
|
|
|
948 if (n == 0) {
|
|
|
949 ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
|
|
|
950 "client closed prematurely connection");
|
|
|
951 }
|
|
|
952
|
|
|
953 if (n == 0 || n == NGX_ERROR) {
|
|
|
954 ngx_http_close_request(r, NGX_HTTP_BAD_REQUEST);
|
|
|
955 return NGX_ERROR;
|
|
|
956 }
|
|
|
957
|
|
|
958 r->header_in->last += n;
|
|
|
959
|
|
|
960 return n;
|
|
|
961 }
|
|
|
962
|
|
|
963
|
|
50
|
964 static ngx_int_t
|
|
|
965 ngx_http_alloc_large_header_buffer(ngx_http_request_t *r,
|
|
|
966 ngx_uint_t request_line)
|
|
0
|
967 {
|
|
|
968 u_char *old, *new;
|
|
|
969 ngx_buf_t *b;
|
|
|
970 ngx_http_connection_t *hc;
|
|
|
971 ngx_http_core_srv_conf_t *cscf;
|
|
|
972
|
|
|
973 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
974 "http alloc large header buffer");
|
|
|
975
|
|
|
976 if (request_line && r->state == 0) {
|
|
|
977
|
|
|
978 /* the client fills up the buffer with "\r\n" */
|
|
|
979
|
|
24
|
980 r->request_length += r->header_in->end - r->header_in->start;
|
|
|
981
|
|
0
|
982 r->header_in->pos = r->header_in->start;
|
|
|
983 r->header_in->last = r->header_in->start;
|
|
|
984
|
|
|
985 return NGX_OK;
|
|
|
986 }
|
|
|
987
|
|
|
988 old = request_line ? r->request_start : r->header_name_start;
|
|
|
989
|
|
|
990 cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
|
|
|
991
|
|
|
992 if (r->state != 0
|
|
|
993 && (size_t) (r->header_in->pos - old)
|
|
|
994 >= cscf->large_client_header_buffers.size)
|
|
|
995 {
|
|
|
996 return NGX_DECLINED;
|
|
|
997 }
|
|
|
998
|
|
|
999 hc = r->http_connection;
|
|
|
1000
|
|
|
1001 if (hc->nfree) {
|
|
|
1002 b = hc->free[--hc->nfree];
|
|
|
1003
|
|
|
1004 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
10
|
1005 "http large header free: %p %uz",
|
|
0
|
1006 b->pos, b->end - b->last);
|
|
|
1007
|
|
|
1008 } else if (hc->nbusy < cscf->large_client_header_buffers.num) {
|
|
|
1009
|
|
|
1010 if (hc->busy == NULL) {
|
|
|
1011 hc->busy = ngx_palloc(r->connection->pool,
|
|
|
1012 cscf->large_client_header_buffers.num * sizeof(ngx_buf_t *));
|
|
|
1013 if (hc->busy == NULL) {
|
|
|
1014 return NGX_ERROR;
|
|
|
1015 }
|
|
|
1016 }
|
|
|
1017
|
|
|
1018 b = ngx_create_temp_buf(r->connection->pool,
|
|
|
1019 cscf->large_client_header_buffers.size);
|
|
|
1020 if (b == NULL) {
|
|
|
1021 return NGX_ERROR;
|
|
|
1022 }
|
|
|
1023
|
|
|
1024 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
10
|
1025 "http large header alloc: %p %uz",
|
|
0
|
1026 b->pos, b->end - b->last);
|
|
|
1027
|
|
|
1028 } else {
|
|
|
1029 return NGX_DECLINED;
|
|
|
1030 }
|
|
|
1031
|
|
|
1032 hc->busy[hc->nbusy++] = b;
|
|
|
1033
|
|
|
1034 if (r->state == 0) {
|
|
|
1035 /*
|
|
|
1036 * r->state == 0 means that a header line was parsed successfully
|
|
|
1037 * and we do not need to copy incomplete header line and
|
|
|
1038 * to relocate the parser header pointers
|
|
|
1039 */
|
|
|
1040
|
|
24
|
1041 r->request_length += r->header_in->end - r->header_in->start;
|
|
|
1042
|
|
0
|
1043 r->header_in = b;
|
|
|
1044
|
|
|
1045 return NGX_OK;
|
|
|
1046 }
|
|
|
1047
|
|
|
1048 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1049 "http large header copy: %d", r->header_in->pos - old);
|
|
|
1050
|
|
24
|
1051 r->request_length += old - r->header_in->start;
|
|
|
1052
|
|
0
|
1053 new = b->start;
|
|
|
1054
|
|
|
1055 ngx_memcpy(new, old, r->header_in->pos - old);
|
|
|
1056
|
|
|
1057 b->pos = new + (r->header_in->pos - old);
|
|
|
1058 b->last = new + (r->header_in->pos - old);
|
|
|
1059
|
|
|
1060 if (request_line) {
|
|
|
1061 r->request_start = new;
|
|
|
1062
|
|
|
1063 if (r->request_end) {
|
|
|
1064 r->request_end = new + (r->request_end - old);
|
|
|
1065 }
|
|
|
1066
|
|
|
1067 r->method_end = new + (r->method_end - old);
|
|
|
1068
|
|
|
1069 r->uri_start = new + (r->uri_start - old);
|
|
|
1070 r->uri_end = new + (r->uri_end - old);
|
|
|
1071
|
|
|
1072 if (r->schema_start) {
|
|
|
1073 r->schema_start = new + (r->schema_start - old);
|
|
|
1074 r->schema_end = new + (r->schema_end - old);
|
|
|
1075 }
|
|
|
1076
|
|
|
1077 if (r->host_start) {
|
|
|
1078 r->host_start = new + (r->host_start - old);
|
|
|
1079 r->host_end = new + (r->host_end - old);
|
|
|
1080 }
|
|
|
1081
|
|
|
1082 if (r->port_start) {
|
|
|
1083 r->port_start = new + (r->port_start - old);
|
|
|
1084 r->port_end = new + (r->port_end - old);
|
|
|
1085 }
|
|
|
1086
|
|
|
1087 if (r->uri_ext) {
|
|
|
1088 r->uri_ext = new + (r->uri_ext - old);
|
|
|
1089 }
|
|
|
1090
|
|
|
1091 if (r->args_start) {
|
|
|
1092 r->args_start = new + (r->args_start - old);
|
|
|
1093 }
|
|
|
1094
|
|
|
1095 } else {
|
|
|
1096 r->header_name_start = new;
|
|
|
1097 r->header_name_end = new + (r->header_name_end - old);
|
|
|
1098 r->header_start = new + (r->header_start - old);
|
|
|
1099 r->header_end = new + (r->header_end - old);
|
|
|
1100 }
|
|
|
1101
|
|
|
1102 r->header_in = b;
|
|
|
1103
|
|
|
1104 return NGX_OK;
|
|
|
1105 }
|
|
|
1106
|
|
|
1107
|
|
50
|
1108 static ngx_int_t
|
|
58
|
1109 ngx_http_process_header_line(ngx_http_request_t *r, ngx_table_elt_t *h,
|
|
|
1110 ngx_uint_t offset)
|
|
|
1111 {
|
|
|
1112 ngx_table_elt_t **ph;
|
|
|
1113
|
|
|
1114 ph = (ngx_table_elt_t **) ((char *) &r->headers_in + offset);
|
|
|
1115
|
|
|
1116 if (*ph == NULL) {
|
|
|
1117 *ph = h;
|
|
|
1118 }
|
|
|
1119
|
|
|
1120 return NGX_OK;
|
|
|
1121 }
|
|
|
1122
|
|
|
1123
|
|
|
1124 static ngx_int_t
|
|
72
|
1125 ngx_http_process_unique_header_line(ngx_http_request_t *r, ngx_table_elt_t *h,
|
|
|
1126 ngx_uint_t offset)
|
|
|
1127 {
|
|
|
1128 ngx_table_elt_t **ph;
|
|
|
1129
|
|
|
1130 ph = (ngx_table_elt_t **) ((char *) &r->headers_in + offset);
|
|
|
1131
|
|
|
1132 if (*ph == NULL) {
|
|
|
1133 *ph = h;
|
|
|
1134 return NGX_OK;
|
|
|
1135 }
|
|
|
1136
|
|
|
1137 ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
|
|
|
1138 "client sent duplicate header line: \"%V: %V\"",
|
|
|
1139 &h->key, &h->value);
|
|
|
1140
|
|
|
1141 ngx_http_finalize_request(r, NGX_HTTP_BAD_REQUEST);
|
|
|
1142
|
|
|
1143 return NGX_ERROR;
|
|
|
1144 }
|
|
|
1145
|
|
|
1146
|
|
|
1147 static ngx_int_t
|
|
58
|
1148 ngx_http_process_cookie(ngx_http_request_t *r, ngx_table_elt_t *h,
|
|
|
1149 ngx_uint_t offset)
|
|
|
1150 {
|
|
|
1151 ngx_table_elt_t **cookie;
|
|
|
1152
|
|
|
1153 cookie = ngx_array_push(&r->headers_in.cookies);
|
|
72
|
1154 if (cookie) {
|
|
|
1155 *cookie = h;
|
|
|
1156 return NGX_OK;
|
|
58
|
1157 }
|
|
|
1158
|
|
72
|
1159 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
1160
|
|
|
1161 return NGX_ERROR;
|
|
58
|
1162 }
|
|
|
1163
|
|
|
1164
|
|
|
1165 static ngx_int_t
|
|
50
|
1166 ngx_http_process_request_header(ngx_http_request_t *r)
|
|
0
|
1167 {
|
|
162
|
1168 size_t len;
|
|
|
1169 u_char *ua, *user_agent, ch;
|
|
0
|
1170
|
|
|
1171 if (r->headers_in.host) {
|
|
|
1172 for (len = 0; len < r->headers_in.host->value.len; len++) {
|
|
26
|
1173 ch = r->headers_in.host->value.data[len];
|
|
|
1174
|
|
|
1175 if (ch == ':') {
|
|
0
|
1176 break;
|
|
|
1177 }
|
|
26
|
1178
|
|
|
1179 r->headers_in.host->value.data[len] = ngx_tolower(ch);
|
|
0
|
1180 }
|
|
54
|
1181
|
|
58
|
1182 if (r->headers_in.host->value.data[len - 1] == '.') {
|
|
|
1183 len--;
|
|
|
1184 }
|
|
|
1185
|
|
0
|
1186 r->headers_in.host_name_len = len;
|
|
|
1187
|
|
162
|
1188 ngx_http_find_virtual_server(r);
|
|
0
|
1189
|
|
|
1190 } else {
|
|
|
1191 if (r->http_version > NGX_HTTP_VERSION_10) {
|
|
54
|
1192 ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
|
|
|
1193 "client sent HTTP/1.1 request without \"Host\" header");
|
|
|
1194 ngx_http_finalize_request(r, NGX_HTTP_BAD_REQUEST);
|
|
|
1195 return NGX_ERROR;
|
|
0
|
1196 }
|
|
54
|
1197
|
|
0
|
1198 r->headers_in.host_name_len = 0;
|
|
|
1199 }
|
|
|
1200
|
|
|
1201 if (r->headers_in.content_length) {
|
|
|
1202 r->headers_in.content_length_n =
|
|
50
|
1203 ngx_atosz(r->headers_in.content_length->value.data,
|
|
0
|
1204 r->headers_in.content_length->value.len);
|
|
|
1205
|
|
|
1206 if (r->headers_in.content_length_n == NGX_ERROR) {
|
|
54
|
1207 ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
|
|
|
1208 "client sent invalid \"Content-Length\" header");
|
|
130
|
1209 ngx_http_finalize_request(r, NGX_HTTP_LENGTH_REQUIRED);
|
|
54
|
1210 return NGX_ERROR;
|
|
0
|
1211 }
|
|
|
1212 }
|
|
|
1213
|
|
32
|
1214 if (r->method == NGX_HTTP_POST && r->headers_in.content_length_n == -1) {
|
|
54
|
1215 ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
|
|
|
1216 "client sent POST method without \"Content-Length\" header");
|
|
130
|
1217 ngx_http_finalize_request(r, NGX_HTTP_LENGTH_REQUIRED);
|
|
|
1218 return NGX_ERROR;
|
|
|
1219 }
|
|
|
1220
|
|
|
1221 if (r->headers_in.transfer_encoding
|
|
|
1222 && ngx_strstr(r->headers_in.transfer_encoding->value.data, "chunked"))
|
|
|
1223 {
|
|
|
1224 ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
|
|
|
1225 "client sent \"Transfer-Encoding: chunked\" header");
|
|
|
1226 ngx_http_finalize_request(r, NGX_HTTP_LENGTH_REQUIRED);
|
|
54
|
1227 return NGX_ERROR;
|
|
0
|
1228 }
|
|
|
1229
|
|
|
1230 if (r->plain_http) {
|
|
54
|
1231 ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
|
|
|
1232 "client sent plain HTTP request to HTTPS port");
|
|
|
1233 ngx_http_finalize_request(r, NGX_HTTP_TO_HTTPS);
|
|
|
1234 return NGX_ERROR;
|
|
0
|
1235 }
|
|
|
1236
|
|
|
1237 if (r->headers_in.connection) {
|
|
|
1238 if (r->headers_in.connection->value.len == 5
|
|
|
1239 && ngx_strcasecmp(r->headers_in.connection->value.data, "close")
|
|
58
|
1240 == 0)
|
|
0
|
1241 {
|
|
|
1242 r->headers_in.connection_type = NGX_HTTP_CONNECTION_CLOSE;
|
|
|
1243
|
|
|
1244 } else if (r->headers_in.connection->value.len == 10
|
|
|
1245 && ngx_strcasecmp(r->headers_in.connection->value.data,
|
|
58
|
1246 "keep-alive") == 0)
|
|
0
|
1247 {
|
|
|
1248 r->headers_in.connection_type = NGX_HTTP_CONNECTION_KEEP_ALIVE;
|
|
|
1249
|
|
|
1250 if (r->headers_in.keep_alive) {
|
|
|
1251 r->headers_in.keep_alive_n =
|
|
50
|
1252 ngx_atotm(r->headers_in.keep_alive->value.data,
|
|
0
|
1253 r->headers_in.keep_alive->value.len);
|
|
|
1254 }
|
|
|
1255 }
|
|
|
1256 }
|
|
|
1257
|
|
|
1258 if (r->headers_in.user_agent) {
|
|
|
1259
|
|
|
1260 /*
|
|
|
1261 * check some widespread browsers while the headers are still
|
|
|
1262 * in CPU cache
|
|
|
1263 */
|
|
|
1264
|
|
|
1265 user_agent = r->headers_in.user_agent->value.data;
|
|
|
1266
|
|
|
1267 ua = (u_char *) ngx_strstr(user_agent, "MSIE");
|
|
|
1268
|
|
|
1269 if (ua && ua + 8 < user_agent + r->headers_in.user_agent->value.len) {
|
|
|
1270
|
|
|
1271 r->headers_in.msie = 1;
|
|
|
1272
|
|
|
1273 if (ua[4] == ' ' && ua[5] == '4' && ua[6] == '.') {
|
|
|
1274 r->headers_in.msie4 = 1;
|
|
|
1275 }
|
|
|
1276
|
|
|
1277 #if 0
|
|
|
1278 /* MSIE ignores the SSL "close notify" alert */
|
|
22
|
1279 if (c->ssl) {
|
|
96
|
1280 c->ssl->no_send_shutdown = 1;
|
|
22
|
1281 }
|
|
0
|
1282 #endif
|
|
|
1283 }
|
|
|
1284
|
|
|
1285 if (ngx_strstr(user_agent, "Opera")) {
|
|
|
1286 r->headers_in.opera = 1;
|
|
|
1287 r->headers_in.msie = 0;
|
|
|
1288 r->headers_in.msie4 = 0;
|
|
|
1289 }
|
|
|
1290
|
|
|
1291 if (!r->headers_in.msie && !r->headers_in.opera) {
|
|
|
1292
|
|
|
1293 if (ngx_strstr(user_agent, "Gecko/")) {
|
|
|
1294 r->headers_in.gecko = 1;
|
|
|
1295
|
|
|
1296 } else if (ngx_strstr(user_agent, "Konqueror")) {
|
|
|
1297 r->headers_in.konqueror = 1;
|
|
|
1298 }
|
|
|
1299 }
|
|
|
1300 }
|
|
|
1301
|
|
|
1302 return NGX_OK;
|
|
|
1303 }
|
|
|
1304
|
|
|
1305
|
|
162
|
1306 static void
|
|
50
|
1307 ngx_http_find_virtual_server(ngx_http_request_t *r)
|
|
26
|
1308 {
|
|
142
|
1309 size_t len;
|
|
|
1310 u_char *host;
|
|
|
1311 ngx_http_virtual_names_t *vn;
|
|
|
1312 ngx_http_core_loc_conf_t *clcf;
|
|
|
1313 ngx_http_core_srv_conf_t *cscf;
|
|
|
1314
|
|
|
1315 vn = r->virtual_names;
|
|
|
1316
|
|
|
1317 if (vn == NULL) {
|
|
162
|
1318 return;
|
|
26
|
1319 }
|
|
|
1320
|
|
142
|
1321 host = r->headers_in.host->value.data;
|
|
|
1322 len = r->headers_in.host_name_len;
|
|
|
1323
|
|
|
1324 /* STUB: ngx_hash_key() here is STUB */
|
|
|
1325
|
|
|
1326 if (vn->hash.buckets) {
|
|
|
1327 cscf = ngx_hash_find(&vn->hash, ngx_hash_key(host, len), host, len);
|
|
|
1328 if (cscf) {
|
|
58
|
1329 goto found;
|
|
26
|
1330 }
|
|
|
1331 }
|
|
|
1332
|
|
142
|
1333 if (vn->dns_wildcards && vn->dns_wildcards->hash.buckets) {
|
|
|
1334 cscf = ngx_hash_find_wildcard(vn->dns_wildcards, host, len);
|
|
|
1335
|
|
|
1336 if (cscf) {
|
|
|
1337 goto found;
|
|
26
|
1338 }
|
|
|
1339 }
|
|
|
1340
|
|
162
|
1341 return;
|
|
58
|
1342
|
|
|
1343 found:
|
|
|
1344
|
|
142
|
1345 r->server_name.len = len;
|
|
|
1346 r->server_name.data = host;
|
|
|
1347
|
|
|
1348 r->srv_conf = cscf->ctx->srv_conf;
|
|
|
1349 r->loc_conf = cscf->ctx->loc_conf;
|
|
58
|
1350
|
|
|
1351 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
1352 r->connection->log->file = clcf->err_log->file;
|
|
|
1353
|
|
|
1354 if (!(r->connection->log->log_level & NGX_LOG_DEBUG_CONNECTION)) {
|
|
|
1355 r->connection->log->log_level = clcf->err_log->log_level;
|
|
26
|
1356 }
|
|
|
1357
|
|
162
|
1358 return;
|
|
26
|
1359 }
|
|
|
1360
|
|
|
1361
|
|
58
|
1362 static void
|
|
|
1363 ngx_http_request_handler(ngx_event_t *ev)
|
|
|
1364 {
|
|
|
1365 ngx_connection_t *c;
|
|
|
1366 ngx_http_request_t *r;
|
|
|
1367
|
|
|
1368 c = ev->data;
|
|
|
1369 r = c->data;
|
|
|
1370
|
|
|
1371 if (ev->write) {
|
|
|
1372 r->write_event_handler(r);
|
|
|
1373
|
|
|
1374 } else {
|
|
|
1375 r->read_event_handler(r);
|
|
|
1376 }
|
|
|
1377 }
|
|
|
1378
|
|
|
1379
|
|
50
|
1380 void
|
|
58
|
1381 ngx_http_finalize_request(ngx_http_request_t *r, ngx_int_t rc)
|
|
0
|
1382 {
|
|
58
|
1383 ngx_http_request_t *pr;
|
|
0
|
1384 ngx_http_core_loc_conf_t *clcf;
|
|
|
1385
|
|
58
|
1386 if (rc == NGX_DONE) {
|
|
118
|
1387 /* the request pool may be already destroyed */
|
|
58
|
1388 return;
|
|
|
1389 }
|
|
|
1390
|
|
132
|
1391 ngx_log_debug3(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1392 "http finalize request: %d, \"%V?%V\"",
|
|
|
1393 rc, &r->uri, &r->args);
|
|
|
1394
|
|
162
|
1395 if (rc == NGX_ERROR
|
|
|
1396 || rc == NGX_HTTP_REQUEST_TIME_OUT
|
|
|
1397 || r->connection->error)
|
|
|
1398 {
|
|
|
1399 if (ngx_http_post_action(r) == NGX_OK) {
|
|
|
1400 return;
|
|
|
1401 }
|
|
|
1402
|
|
118
|
1403 ngx_http_close_request(r, 0);
|
|
0
|
1404 return;
|
|
|
1405 }
|
|
|
1406
|
|
118
|
1407 if (rc >= NGX_HTTP_SPECIAL_RESPONSE || rc == NGX_HTTP_NO_CONTENT) {
|
|
|
1408
|
|
136
|
1409 if (rc == NGX_HTTP_CLOSE) {
|
|
|
1410 ngx_http_close_request(r, rc);
|
|
|
1411 return;
|
|
|
1412 }
|
|
|
1413
|
|
146
|
1414 if (r == r->main) {
|
|
118
|
1415 if (r->connection->read->timer_set) {
|
|
|
1416 ngx_del_timer(r->connection->read);
|
|
|
1417 }
|
|
|
1418
|
|
|
1419 if (r->connection->write->timer_set) {
|
|
|
1420 ngx_del_timer(r->connection->write);
|
|
|
1421 }
|
|
|
1422 }
|
|
|
1423
|
|
|
1424 ngx_http_finalize_request(r, ngx_http_special_response_handler(r, rc));
|
|
|
1425
|
|
|
1426 return;
|
|
|
1427 }
|
|
|
1428
|
|
146
|
1429 if (r != r->main || rc == NGX_AGAIN) {
|
|
74
|
1430 if (ngx_http_set_write_handler(r) != NGX_OK) {
|
|
|
1431 return;
|
|
|
1432 }
|
|
58
|
1433 }
|
|
|
1434
|
|
|
1435 r->done = 1;
|
|
|
1436
|
|
|
1437 if (r != r->connection->data) {
|
|
132
|
1438 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1439 "http finalize non-active request: \"%V?%V\"",
|
|
|
1440 &r->uri, &r->args);
|
|
58
|
1441 return;
|
|
|
1442 }
|
|
|
1443
|
|
146
|
1444 if (r != r->main) {
|
|
58
|
1445
|
|
|
1446 pr = r->parent;
|
|
|
1447
|
|
132
|
1448 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1449 "http parent request: \"%V?%V\"", &pr->uri, &pr->args);
|
|
76
|
1450
|
|
58
|
1451 if (rc != NGX_AGAIN) {
|
|
146
|
1452 r->connection->data = pr;
|
|
58
|
1453 }
|
|
|
1454
|
|
|
1455 if (pr->postponed) {
|
|
|
1456
|
|
132
|
1457 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1458 "http request: \"%V?%V\" has postponed",
|
|
|
1459 &pr->uri, &pr->args);
|
|
76
|
1460
|
|
58
|
1461 if (rc != NGX_AGAIN && pr->postponed->request == r) {
|
|
|
1462 pr->postponed = pr->postponed->next;
|
|
146
|
1463 }
|
|
|
1464
|
|
|
1465 if (r->fast_subrequest) {
|
|
|
1466 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1467 "http fast subrequest: \"%V?%V\" done",
|
|
|
1468 &r->uri, &r->args);
|
|
|
1469 return;
|
|
58
|
1470 }
|
|
|
1471
|
|
132
|
1472 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
146
|
1473 "http wake parent request: \"%V?%V\"",
|
|
|
1474 &pr->uri, &pr->args);
|
|
|
1475
|
|
|
1476 pr->write_event_handler(pr);
|
|
|
1477
|
|
|
1478 #if 0
|
|
|
1479 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
132
|
1480 "http request: \"%V?%V\" still has postponed",
|
|
|
1481 &pr->uri, &pr->args);
|
|
|
1482
|
|
|
1483 if (pr->done || pr->postponed->out) {
|
|
|
1484 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1485 "http wake parent request: \"%V?%V\"",
|
|
|
1486 &pr->uri, &pr->args);
|
|
58
|
1487
|
|
|
1488 pr->write_event_handler(pr);
|
|
|
1489 }
|
|
146
|
1490 #endif
|
|
|
1491
|
|
58
|
1492 }
|
|
|
1493
|
|
|
1494 return;
|
|
|
1495 }
|
|
0
|
1496
|
|
118
|
1497 if (rc == NGX_AGAIN) {
|
|
0
|
1498 return;
|
|
76
|
1499 }
|
|
|
1500
|
|
146
|
1501 if (r->connection->buffered) {
|
|
74
|
1502 (void) ngx_http_set_write_handler(r);
|
|
0
|
1503 return;
|
|
|
1504 }
|
|
|
1505
|
|
162
|
1506 if (ngx_http_post_action(r) == NGX_OK) {
|
|
126
|
1507 return;
|
|
|
1508 }
|
|
|
1509
|
|
0
|
1510 if (r->connection->read->timer_set) {
|
|
|
1511 ngx_del_timer(r->connection->read);
|
|
|
1512 }
|
|
|
1513
|
|
|
1514 if (r->connection->write->timer_set) {
|
|
|
1515 r->connection->write->delayed = 0;
|
|
|
1516 ngx_del_timer(r->connection->write);
|
|
|
1517 }
|
|
|
1518
|
|
138
|
1519 if (r->connection->destroyed) {
|
|
|
1520 return;
|
|
|
1521 }
|
|
|
1522
|
|
162
|
1523 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
0
|
1524
|
|
|
1525 if (!ngx_terminate
|
|
|
1526 && !ngx_exiting
|
|
|
1527 && r->keepalive != 0
|
|
|
1528 && clcf->keepalive_timeout > 0)
|
|
|
1529 {
|
|
|
1530 ngx_http_set_keepalive(r);
|
|
|
1531 return;
|
|
|
1532
|
|
|
1533 } else if (r->lingering_close && clcf->lingering_timeout > 0) {
|
|
|
1534 ngx_http_set_lingering_close(r);
|
|
|
1535 return;
|
|
|
1536 }
|
|
|
1537
|
|
|
1538 ngx_http_close_request(r, 0);
|
|
|
1539 }
|
|
|
1540
|
|
|
1541
|
|
74
|
1542 static ngx_int_t
|
|
50
|
1543 ngx_http_set_write_handler(ngx_http_request_t *r)
|
|
0
|
1544 {
|
|
|
1545 ngx_event_t *wev;
|
|
|
1546 ngx_http_core_loc_conf_t *clcf;
|
|
|
1547
|
|
58
|
1548 r->http_state = NGX_HTTP_WRITING_REQUEST_STATE;
|
|
|
1549
|
|
74
|
1550 r->write_event_handler = ngx_http_writer;
|
|
|
1551
|
|
0
|
1552 wev = r->connection->write;
|
|
|
1553
|
|
|
1554 if (wev->ready && wev->delayed) {
|
|
74
|
1555 return NGX_OK;
|
|
0
|
1556 }
|
|
|
1557
|
|
58
|
1558 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
0
|
1559 if (!wev->delayed) {
|
|
|
1560 ngx_add_timer(wev, clcf->send_timeout);
|
|
|
1561 }
|
|
|
1562
|
|
2
|
1563 if (ngx_handle_write_event(wev, clcf->send_lowat) == NGX_ERROR) {
|
|
0
|
1564 ngx_http_close_request(r, 0);
|
|
74
|
1565 return NGX_ERROR;
|
|
0
|
1566 }
|
|
74
|
1567
|
|
|
1568 return NGX_OK;
|
|
0
|
1569 }
|
|
|
1570
|
|
|
1571
|
|
58
|
1572 static void
|
|
|
1573 ngx_http_writer(ngx_http_request_t *r)
|
|
0
|
1574 {
|
|
|
1575 int rc;
|
|
58
|
1576 ngx_event_t *wev;
|
|
0
|
1577 ngx_connection_t *c;
|
|
|
1578 ngx_http_core_loc_conf_t *clcf;
|
|
|
1579
|
|
58
|
1580 c = r->connection;
|
|
|
1581 wev = c->write;
|
|
|
1582
|
|
132
|
1583 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, wev->log, 0,
|
|
|
1584 "http writer handler: \"%V?%V\"", &r->uri, &r->args);
|
|
0
|
1585
|
|
|
1586 if (wev->timedout) {
|
|
|
1587 if (!wev->delayed) {
|
|
54
|
1588 ngx_log_error(NGX_LOG_INFO, c->log, NGX_ETIMEDOUT,
|
|
|
1589 "client timed out");
|
|
|
1590 c->timedout = 1;
|
|
116
|
1591
|
|
162
|
1592 ngx_http_finalize_request(r, NGX_HTTP_REQUEST_TIME_OUT);
|
|
0
|
1593 return;
|
|
|
1594 }
|
|
|
1595
|
|
|
1596 wev->timedout = 0;
|
|
|
1597 wev->delayed = 0;
|
|
|
1598
|
|
|
1599 if (!wev->ready) {
|
|
102
|
1600 clcf = ngx_http_get_module_loc_conf(r->main, ngx_http_core_module);
|
|
0
|
1601 ngx_add_timer(wev, clcf->send_timeout);
|
|
|
1602
|
|
2
|
1603 if (ngx_handle_write_event(wev, clcf->send_lowat) == NGX_ERROR) {
|
|
118
|
1604 ngx_http_close_request(r, 0);
|
|
0
|
1605 }
|
|
|
1606
|
|
|
1607 return;
|
|
|
1608 }
|
|
|
1609
|
|
|
1610 } else {
|
|
|
1611 if (wev->delayed) {
|
|
|
1612 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, wev->log, 0,
|
|
|
1613 "http writer delayed");
|
|
|
1614
|
|
102
|
1615 clcf = ngx_http_get_module_loc_conf(r->main, ngx_http_core_module);
|
|
2
|
1616
|
|
|
1617 if (ngx_handle_write_event(wev, clcf->send_lowat) == NGX_ERROR) {
|
|
118
|
1618 ngx_http_close_request(r, 0);
|
|
0
|
1619 }
|
|
|
1620
|
|
|
1621 return;
|
|
|
1622 }
|
|
|
1623 }
|
|
|
1624
|
|
132
|
1625 rc = ngx_http_output_filter(r, NULL);
|
|
|
1626
|
|
|
1627 if (c->destroyed) {
|
|
|
1628 return;
|
|
58
|
1629 }
|
|
|
1630
|
|
132
|
1631 ngx_log_debug3(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
|
1632 "http writer output filter: %d, \"%V?%V\"",
|
|
|
1633 rc, &r->uri, &r->args);
|
|
0
|
1634
|
|
|
1635 if (rc == NGX_AGAIN) {
|
|
102
|
1636 clcf = ngx_http_get_module_loc_conf(r->main, ngx_http_core_module);
|
|
0
|
1637 if (!wev->ready && !wev->delayed) {
|
|
|
1638 ngx_add_timer(wev, clcf->send_timeout);
|
|
|
1639 }
|
|
|
1640
|
|
2
|
1641 if (ngx_handle_write_event(wev, clcf->send_lowat) == NGX_ERROR) {
|
|
118
|
1642 ngx_http_close_request(r, 0);
|
|
0
|
1643 }
|
|
|
1644
|
|
146
|
1645 if (r == r->main) {
|
|
|
1646 return;
|
|
|
1647 }
|
|
|
1648
|
|
|
1649 rc = NGX_OK;
|
|
0
|
1650 }
|
|
|
1651
|
|
132
|
1652 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, wev->log, 0,
|
|
|
1653 "http writer done: \"%V?%V\"", &r->uri, &r->args);
|
|
0
|
1654
|
|
|
1655 ngx_http_finalize_request(r, rc);
|
|
|
1656 }
|
|
|
1657
|
|
|
1658
|
|
50
|
1659 static void
|
|
58
|
1660 ngx_http_block_read(ngx_http_request_t *r)
|
|
0
|
1661 {
|
|
58
|
1662 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1663 "http read blocked");
|
|
0
|
1664
|
|
|
1665 /* aio does not call this handler */
|
|
|
1666
|
|
58
|
1667 if ((ngx_event_flags & NGX_USE_LEVEL_EVENT)
|
|
|
1668 && r->connection->read->active)
|
|
|
1669 {
|
|
|
1670 if (ngx_del_event(r->connection->read, NGX_READ_EVENT, 0)
|
|
|
1671 == NGX_ERROR)
|
|
|
1672 {
|
|
0
|
1673 ngx_http_close_request(r, 0);
|
|
|
1674 }
|
|
|
1675 }
|
|
|
1676 }
|
|
|
1677
|
|
|
1678
|
|
50
|
1679 ngx_int_t
|
|
|
1680 ngx_http_discard_body(ngx_http_request_t *r)
|
|
0
|
1681 {
|
|
|
1682 ssize_t size;
|
|
|
1683 ngx_event_t *rev;
|
|
|
1684
|
|
146
|
1685 if (r != r->main) {
|
|
70
|
1686 return NGX_OK;
|
|
|
1687 }
|
|
|
1688
|
|
0
|
1689 rev = r->connection->read;
|
|
|
1690
|
|
|
1691 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, rev->log, 0, "http set discard body");
|
|
|
1692
|
|
|
1693 if (rev->timer_set) {
|
|
|
1694 ngx_del_timer(rev);
|
|
|
1695 }
|
|
|
1696
|
|
|
1697 if (r->headers_in.content_length_n <= 0) {
|
|
|
1698 return NGX_OK;
|
|
|
1699 }
|
|
|
1700
|
|
86
|
1701 r->discard_body = 1;
|
|
|
1702
|
|
0
|
1703 size = r->header_in->last - r->header_in->pos;
|
|
|
1704
|
|
|
1705 if (size) {
|
|
|
1706 if (r->headers_in.content_length_n > size) {
|
|
|
1707 r->headers_in.content_length_n -= size;
|
|
|
1708
|
|
|
1709 } else {
|
|
|
1710 r->header_in->pos += r->headers_in.content_length_n;
|
|
|
1711 r->headers_in.content_length_n = 0;
|
|
|
1712 return NGX_OK;
|
|
|
1713 }
|
|
|
1714 }
|
|
|
1715
|
|
58
|
1716 r->read_event_handler = ngx_http_read_discarded_body_handler;
|
|
|
1717
|
|
|
1718 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) {
|
|
0
|
1719 return NGX_HTTP_INTERNAL_SERVER_ERROR;
|
|
|
1720 }
|
|
|
1721
|
|
|
1722 return ngx_http_read_discarded_body(r);
|
|
|
1723 }
|
|
|
1724
|
|
|
1725
|
|
50
|
1726 static void
|
|
58
|
1727 ngx_http_read_discarded_body_handler(ngx_http_request_t *r)
|
|
0
|
1728 {
|
|
58
|
1729 ngx_int_t rc;
|
|
0
|
1730
|
|
|
1731 rc = ngx_http_read_discarded_body(r);
|
|
|
1732
|
|
|
1733 if (rc == NGX_AGAIN) {
|
|
58
|
1734 if (ngx_handle_read_event(r->connection->read, 0) == NGX_ERROR) {
|
|
0
|
1735 ngx_http_close_request(r, rc);
|
|
|
1736 return;
|
|
|
1737 }
|
|
|
1738 }
|
|
|
1739
|
|
|
1740 if (rc != NGX_OK) {
|
|
|
1741 ngx_http_close_request(r, rc);
|
|
|
1742 }
|
|
|
1743 }
|
|
|
1744
|
|
|
1745
|
|
50
|
1746 static ngx_int_t
|
|
|
1747 ngx_http_read_discarded_body(ngx_http_request_t *r)
|
|
0
|
1748 {
|
|
|
1749 ssize_t size, n;
|
|
|
1750 u_char buffer[NGX_HTTP_DISCARD_BUFFER_SIZE];
|
|
|
1751
|
|
|
1752 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1753 "http read discarded body");
|
|
|
1754
|
|
|
1755 if (r->headers_in.content_length_n == 0) {
|
|
|
1756 return NGX_OK;
|
|
|
1757 }
|
|
|
1758
|
|
|
1759
|
|
|
1760 size = r->headers_in.content_length_n;
|
|
|
1761
|
|
|
1762 if (size > NGX_HTTP_DISCARD_BUFFER_SIZE) {
|
|
|
1763 size = NGX_HTTP_DISCARD_BUFFER_SIZE;
|
|
|
1764 }
|
|
|
1765
|
|
|
1766 n = r->connection->recv(r->connection, buffer, size);
|
|
|
1767
|
|
|
1768 if (n == NGX_ERROR) {
|
|
|
1769
|
|
132
|
1770 r->connection->error = 1;
|
|
0
|
1771
|
|
|
1772 /*
|
|
|
1773 * if a client request body is discarded then we already set
|
|
|
1774 * some HTTP response code for client and we can ignore the error
|
|
|
1775 */
|
|
|
1776
|
|
|
1777 return NGX_OK;
|
|
|
1778 }
|
|
|
1779
|
|
|
1780 if (n == NGX_AGAIN) {
|
|
|
1781 return NGX_AGAIN;
|
|
|
1782 }
|
|
|
1783
|
|
|
1784 r->headers_in.content_length_n -= n;
|
|
|
1785
|
|
|
1786 return NGX_OK;
|
|
|
1787 }
|
|
|
1788
|
|
|
1789
|
|
50
|
1790 static void
|
|
|
1791 ngx_http_set_keepalive(ngx_http_request_t *r)
|
|
0
|
1792 {
|
|
2
|
1793 int tcp_nodelay;
|
|
0
|
1794 ngx_int_t i;
|
|
|
1795 ngx_buf_t *b, *f;
|
|
|
1796 ngx_event_t *rev, *wev;
|
|
|
1797 ngx_connection_t *c;
|
|
|
1798 ngx_http_connection_t *hc;
|
|
|
1799 ngx_http_core_srv_conf_t *cscf;
|
|
|
1800 ngx_http_core_loc_conf_t *clcf;
|
|
|
1801
|
|
|
1802 c = r->connection;
|
|
|
1803 rev = c->read;
|
|
|
1804
|
|
|
1805 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "set http keepalive handler");
|
|
|
1806
|
|
32
|
1807 c->log->action = "closing request";
|
|
0
|
1808
|
|
|
1809 hc = r->http_connection;
|
|
|
1810 b = r->header_in;
|
|
|
1811
|
|
|
1812 if (b->pos < b->last) {
|
|
|
1813
|
|
|
1814 /* the pipelined request */
|
|
|
1815
|
|
|
1816 if (b != c->buffer) {
|
|
|
1817
|
|
4
|
1818 /*
|
|
|
1819 * If the large header buffers were allocated while the previous
|
|
|
1820 * request processing then we do not use c->buffer for
|
|
|
1821 * the pipelined request (see ngx_http_init_request()).
|
|
126
|
1822 *
|
|
4
|
1823 * Now we would move the large header buffers to the free list.
|
|
|
1824 */
|
|
0
|
1825
|
|
|
1826 cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
|
|
|
1827
|
|
|
1828 if (hc->free == NULL) {
|
|
|
1829 hc->free = ngx_palloc(c->pool,
|
|
|
1830 cscf->large_client_header_buffers.num * sizeof(ngx_buf_t *));
|
|
|
1831
|
|
|
1832 if (hc->free == NULL) {
|
|
26
|
1833 ngx_http_close_request(r, 0);
|
|
0
|
1834 return;
|
|
|
1835 }
|
|
|
1836 }
|
|
|
1837
|
|
|
1838 for (i = 0; i < hc->nbusy - 1; i++) {
|
|
|
1839 f = hc->busy[i];
|
|
|
1840 hc->free[hc->nfree++] = f;
|
|
|
1841 f->pos = f->start;
|
|
|
1842 f->last = f->start;
|
|
|
1843 }
|
|
|
1844
|
|
|
1845 hc->busy[0] = b;
|
|
|
1846 hc->nbusy = 1;
|
|
|
1847 }
|
|
|
1848 }
|
|
|
1849
|
|
26
|
1850 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
1851
|
|
118
|
1852 ngx_http_request_done(r, 0);
|
|
|
1853
|
|
0
|
1854 c->data = hc;
|
|
|
1855
|
|
|
1856 ngx_add_timer(rev, clcf->keepalive_timeout);
|
|
|
1857
|
|
58
|
1858 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) {
|
|
0
|
1859 ngx_http_close_connection(c);
|
|
|
1860 return;
|
|
|
1861 }
|
|
|
1862
|
|
|
1863 wev = c->write;
|
|
58
|
1864 wev->handler = ngx_http_empty_handler;
|
|
0
|
1865
|
|
|
1866 if (b->pos < b->last) {
|
|
|
1867
|
|
|
1868 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "pipelined request");
|
|
|
1869
|
|
116
|
1870 #if (NGX_STAT_STUB)
|
|
|
1871 ngx_atomic_fetch_add(ngx_stat_reading, 1);
|
|
|
1872 #endif
|
|
|
1873
|
|
0
|
1874 hc->pipeline = 1;
|
|
32
|
1875 c->log->action = "reading client pipelined request line";
|
|
116
|
1876
|
|
0
|
1877 ngx_http_init_request(rev);
|
|
|
1878 return;
|
|
|
1879 }
|
|
|
1880
|
|
|
1881 hc->pipeline = 0;
|
|
|
1882
|
|
4
|
1883 /*
|
|
|
1884 * To keep a memory footprint as small as possible for an idle
|
|
|
1885 * keepalive connection we try to free the ngx_http_request_t and
|
|
|
1886 * c->buffer's memory if they were allocated outside the c->pool.
|
|
|
1887 * The large header buffers are always allocated outside the c->pool and
|
|
|
1888 * are freed too.
|
|
|
1889 */
|
|
|
1890
|
|
0
|
1891 if (ngx_pfree(c->pool, r) == NGX_OK) {
|
|
|
1892 hc->request = NULL;
|
|
|
1893 }
|
|
|
1894
|
|
|
1895 b = c->buffer;
|
|
|
1896
|
|
|
1897 if (ngx_pfree(c->pool, b->start) == NGX_OK) {
|
|
4
|
1898
|
|
|
1899 /*
|
|
|
1900 * the special note for ngx_http_keepalive_handler() that
|
|
|
1901 * c->buffer's memory was freed
|
|
|
1902 */
|
|
|
1903
|
|
0
|
1904 b->pos = NULL;
|
|
|
1905
|
|
|
1906 } else {
|
|
|
1907 b->pos = b->start;
|
|
|
1908 b->last = b->start;
|
|
|
1909 }
|
|
|
1910
|
|
10
|
1911 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, c->log, 0, "hc free: %p %d",
|
|
0
|
1912 hc->free, hc->nfree);
|
|
|
1913
|
|
|
1914 if (hc->free) {
|
|
|
1915 for (i = 0; i < hc->nfree; i++) {
|
|
|
1916 ngx_pfree(c->pool, hc->free[i]);
|
|
|
1917 hc->free[i] = NULL;
|
|
|
1918 }
|
|
|
1919
|
|
|
1920 hc->nfree = 0;
|
|
|
1921 }
|
|
|
1922
|
|
10
|
1923 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, c->log, 0, "hc busy: %p %d",
|
|
0
|
1924 hc->busy, hc->nbusy);
|
|
|
1925
|
|
|
1926 if (hc->busy) {
|
|
|
1927 for (i = 0; i < hc->nbusy; i++) {
|
|
|
1928 ngx_pfree(c->pool, hc->busy[i]);
|
|
|
1929 hc->busy[i] = NULL;
|
|
|
1930 }
|
|
|
1931
|
|
|
1932 hc->nbusy = 0;
|
|
|
1933 }
|
|
|
1934
|
|
58
|
1935 rev->handler = ngx_http_keepalive_handler;
|
|
0
|
1936
|
|
132
|
1937 if (wev->active && (ngx_event_flags & NGX_USE_LEVEL_EVENT)) {
|
|
|
1938 if (ngx_del_event(wev, NGX_WRITE_EVENT, 0) == NGX_ERROR) {
|
|
|
1939 ngx_http_close_connection(c);
|
|
|
1940 return;
|
|
0
|
1941 }
|
|
|
1942 }
|
|
|
1943
|
|
32
|
1944 c->log->action = "keepalive";
|
|
0
|
1945
|
|
|
1946 if (c->tcp_nopush == NGX_TCP_NOPUSH_SET) {
|
|
50
|
1947 if (ngx_tcp_push(c->fd) == -1) {
|
|
0
|
1948 ngx_connection_error(c, ngx_socket_errno, ngx_tcp_push_n " failed");
|
|
|
1949 ngx_http_close_connection(c);
|
|
|
1950 return;
|
|
|
1951 }
|
|
2
|
1952
|
|
0
|
1953 c->tcp_nopush = NGX_TCP_NOPUSH_UNSET;
|
|
22
|
1954 tcp_nodelay = ngx_tcp_nodelay_and_tcp_nopush ? 1 : 0;
|
|
2
|
1955
|
|
|
1956 } else {
|
|
22
|
1957 tcp_nodelay = 1;
|
|
|
1958 }
|
|
|
1959
|
|
32
|
1960 if (tcp_nodelay
|
|
|
1961 && clcf->tcp_nodelay
|
|
|
1962 && c->tcp_nodelay == NGX_TCP_NODELAY_UNSET)
|
|
|
1963 {
|
|
22
|
1964 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "tcp_nodelay");
|
|
|
1965
|
|
|
1966 if (setsockopt(c->fd, IPPROTO_TCP, TCP_NODELAY,
|
|
|
1967 (const void *) &tcp_nodelay, sizeof(int)) == -1)
|
|
|
1968 {
|
|
|
1969 ngx_connection_error(c, ngx_socket_errno,
|
|
|
1970 "setsockopt(TCP_NODELAY) failed");
|
|
|
1971 ngx_http_close_connection(c);
|
|
|
1972 return;
|
|
2
|
1973 }
|
|
22
|
1974
|
|
32
|
1975 c->tcp_nodelay = NGX_TCP_NODELAY_SET;
|
|
0
|
1976 }
|
|
|
1977
|
|
|
1978 #if 0
|
|
4
|
1979 /* if ngx_http_request_t was freed then we need some other place */
|
|
0
|
1980 r->http_state = NGX_HTTP_KEEPALIVE_STATE;
|
|
|
1981 #endif
|
|
|
1982
|
|
|
1983 if (rev->ready) {
|
|
|
1984 ngx_http_keepalive_handler(rev);
|
|
|
1985 }
|
|
|
1986 }
|
|
|
1987
|
|
|
1988
|
|
50
|
1989 static void
|
|
|
1990 ngx_http_keepalive_handler(ngx_event_t *rev)
|
|
0
|
1991 {
|
|
50
|
1992 size_t size;
|
|
|
1993 ssize_t n;
|
|
|
1994 ngx_buf_t *b;
|
|
|
1995 ngx_connection_t *c;
|
|
0
|
1996
|
|
|
1997 c = rev->data;
|
|
|
1998
|
|
|
1999 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "http keepalive handler");
|
|
|
2000
|
|
|
2001 if (rev->timedout) {
|
|
|
2002 ngx_http_close_connection(c);
|
|
|
2003 return;
|
|
|
2004 }
|
|
|
2005
|
|
18
|
2006 #if (NGX_HAVE_KQUEUE)
|
|
0
|
2007
|
|
4
|
2008 if (ngx_event_flags & NGX_USE_KQUEUE_EVENT) {
|
|
136
|
2009 if (rev->pending_eof) {
|
|
32
|
2010 c->log->handler = NULL;
|
|
0
|
2011 ngx_log_error(NGX_LOG_INFO, c->log, rev->kq_errno,
|
|
10
|
2012 "kevent() reported that client %V closed "
|
|
32
|
2013 "keepalive connection", &c->addr_text);
|
|
22
|
2014 #if (NGX_HTTP_SSL)
|
|
|
2015 if (c->ssl) {
|
|
96
|
2016 c->ssl->no_send_shutdown = 1;
|
|
22
|
2017 }
|
|
|
2018 #endif
|
|
0
|
2019 ngx_http_close_connection(c);
|
|
|
2020 return;
|
|
|
2021 }
|
|
|
2022 }
|
|
|
2023
|
|
|
2024 #endif
|
|
|
2025
|
|
|
2026 b = c->buffer;
|
|
|
2027 size = b->end - b->start;
|
|
|
2028
|
|
|
2029 if (b->pos == NULL) {
|
|
4
|
2030
|
|
|
2031 /*
|
|
|
2032 * The c->buffer's memory was freed by ngx_http_set_keepalive().
|
|
|
2033 * However, the c->buffer->start and c->buffer->end were not changed
|
|
|
2034 * to keep the buffer size.
|
|
|
2035 */
|
|
|
2036
|
|
50
|
2037 b->pos = ngx_palloc(c->pool, size);
|
|
|
2038 if (b->pos == NULL) {
|
|
0
|
2039 ngx_http_close_connection(c);
|
|
|
2040 return;
|
|
|
2041 }
|
|
|
2042
|
|
|
2043 b->start = b->pos;
|
|
|
2044 b->last = b->pos;
|
|
|
2045 b->end = b->pos + size;
|
|
|
2046 }
|
|
|
2047
|
|
|
2048 /*
|
|
|
2049 * MSIE closes a keepalive connection with RST flag
|
|
|
2050 * so we ignore ECONNRESET here.
|
|
|
2051 */
|
|
|
2052
|
|
|
2053 c->log_error = NGX_ERROR_IGNORE_ECONNRESET;
|
|
|
2054 ngx_set_socket_errno(0);
|
|
|
2055
|
|
|
2056 n = c->recv(c, b->last, size);
|
|
|
2057 c->log_error = NGX_ERROR_INFO;
|
|
|
2058
|
|
|
2059 if (n == NGX_AGAIN) {
|
|
58
|
2060 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) {
|
|
24
|
2061 ngx_http_close_connection(c);
|
|
|
2062 }
|
|
|
2063
|
|
0
|
2064 return;
|
|
|
2065 }
|
|
|
2066
|
|
|
2067 if (n == NGX_ERROR) {
|
|
|
2068 ngx_http_close_connection(c);
|
|
|
2069 return;
|
|
|
2070 }
|
|
|
2071
|
|
32
|
2072 c->log->handler = NULL;
|
|
0
|
2073
|
|
|
2074 if (n == 0) {
|
|
|
2075 ngx_log_error(NGX_LOG_INFO, c->log, ngx_socket_errno,
|
|
32
|
2076 "client %V closed keepalive connection", &c->addr_text);
|
|
0
|
2077 ngx_http_close_connection(c);
|
|
|
2078 return;
|
|
|
2079 }
|
|
|
2080
|
|
|
2081 b->last += n;
|
|
32
|
2082
|
|
116
|
2083 #if (NGX_STAT_STUB)
|
|
|
2084 ngx_atomic_fetch_add(ngx_stat_reading, 1);
|
|
|
2085 #endif
|
|
|
2086
|
|
32
|
2087 c->log->handler = ngx_http_log_error;
|
|
|
2088 c->log->action = "reading client request line";
|
|
0
|
2089
|
|
|
2090 ngx_http_init_request(rev);
|
|
|
2091 }
|
|
|
2092
|
|
|
2093
|
|
50
|
2094 static void
|
|
|
2095 ngx_http_set_lingering_close(ngx_http_request_t *r)
|
|
126
|
2096 {
|
|
0
|
2097 ngx_event_t *rev, *wev;
|
|
|
2098 ngx_connection_t *c;
|
|
|
2099 ngx_http_core_loc_conf_t *clcf;
|
|
|
2100
|
|
|
2101 c = r->connection;
|
|
|
2102
|
|
|
2103 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
2104
|
|
|
2105 rev = c->read;
|
|
58
|
2106 rev->handler = ngx_http_lingering_close_handler;
|
|
0
|
2107
|
|
106
|
2108 r->lingering_time = ngx_time() + (time_t) (clcf->lingering_time / 1000);
|
|
0
|
2109 ngx_add_timer(rev, clcf->lingering_timeout);
|
|
|
2110
|
|
58
|
2111 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) {
|
|
0
|
2112 ngx_http_close_request(r, 0);
|
|
|
2113 return;
|
|
|
2114 }
|
|
|
2115
|
|
|
2116 wev = c->write;
|
|
58
|
2117 wev->handler = ngx_http_empty_handler;
|
|
0
|
2118
|
|
132
|
2119 if (wev->active && (ngx_event_flags & NGX_USE_LEVEL_EVENT)) {
|
|
|
2120 if (ngx_del_event(wev, NGX_WRITE_EVENT, 0) == NGX_ERROR) {
|
|
|
2121 ngx_http_close_request(r, 0);
|
|
|
2122 return;
|
|
0
|
2123 }
|
|
|
2124 }
|
|
|
2125
|
|
|
2126 if (ngx_shutdown_socket(c->fd, NGX_WRITE_SHUTDOWN) == -1) {
|
|
|
2127 ngx_connection_error(c, ngx_socket_errno,
|
|
|
2128 ngx_shutdown_socket_n " failed");
|
|
|
2129 ngx_http_close_request(r, 0);
|
|
|
2130 return;
|
|
|
2131 }
|
|
|
2132
|
|
|
2133 if (rev->ready) {
|
|
|
2134 ngx_http_lingering_close_handler(rev);
|
|
|
2135 }
|
|
|
2136 }
|
|
|
2137
|
|
|
2138
|
|
50
|
2139 static void
|
|
|
2140 ngx_http_lingering_close_handler(ngx_event_t *rev)
|
|
0
|
2141 {
|
|
|
2142 ssize_t n;
|
|
|
2143 ngx_msec_t timer;
|
|
|
2144 ngx_connection_t *c;
|
|
|
2145 ngx_http_request_t *r;
|
|
|
2146 ngx_http_core_loc_conf_t *clcf;
|
|
|
2147 u_char buffer[NGX_HTTP_LINGERING_BUFFER_SIZE];
|
|
|
2148
|
|
|
2149 c = rev->data;
|
|
|
2150 r = c->data;
|
|
|
2151
|
|
|
2152 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
|
2153 "http lingering close handler");
|
|
|
2154
|
|
|
2155 if (rev->timedout) {
|
|
126
|
2156 c->timedout = 1;
|
|
0
|
2157 ngx_http_close_request(r, 0);
|
|
|
2158 return;
|
|
|
2159 }
|
|
|
2160
|
|
|
2161 timer = r->lingering_time - ngx_time();
|
|
|
2162 if (timer <= 0) {
|
|
|
2163 ngx_http_close_request(r, 0);
|
|
|
2164 return;
|
|
|
2165 }
|
|
|
2166
|
|
|
2167 do {
|
|
|
2168 n = c->recv(c, buffer, NGX_HTTP_LINGERING_BUFFER_SIZE);
|
|
|
2169
|
|
|
2170 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0, "lingering read: %d", n);
|
|
|
2171
|
|
|
2172 if (n == NGX_ERROR || n == 0) {
|
|
|
2173 ngx_http_close_request(r, 0);
|
|
|
2174 return;
|
|
|
2175 }
|
|
|
2176
|
|
|
2177 } while (rev->ready);
|
|
|
2178
|
|
58
|
2179 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) {
|
|
26
|
2180 ngx_http_close_request(r, 0);
|
|
24
|
2181 return;
|
|
|
2182 }
|
|
|
2183
|
|
0
|
2184 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
2185
|
|
|
2186 timer *= 1000;
|
|
|
2187
|
|
|
2188 if (timer > clcf->lingering_timeout) {
|
|
|
2189 timer = clcf->lingering_timeout;
|
|
|
2190 }
|
|
|
2191
|
|
|
2192 ngx_add_timer(rev, timer);
|
|
|
2193 }
|
|
|
2194
|
|
|
2195
|
|
50
|
2196 void
|
|
|
2197 ngx_http_empty_handler(ngx_event_t *wev)
|
|
0
|
2198 {
|
|
|
2199 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, wev->log, 0, "http empty handler");
|
|
|
2200
|
|
|
2201 return;
|
|
|
2202 }
|
|
|
2203
|
|
|
2204
|
|
58
|
2205 void
|
|
|
2206 ngx_http_request_empty_handler(ngx_http_request_t *r)
|
|
|
2207 {
|
|
|
2208 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
132
|
2209 "http request empty handler");
|
|
58
|
2210
|
|
|
2211 return;
|
|
|
2212 }
|
|
|
2213
|
|
|
2214
|
|
50
|
2215 ngx_int_t
|
|
130
|
2216 ngx_http_send_special(ngx_http_request_t *r, ngx_uint_t flags)
|
|
0
|
2217 {
|
|
|
2218 ngx_buf_t *b;
|
|
|
2219 ngx_chain_t out;
|
|
|
2220
|
|
50
|
2221 b = ngx_calloc_buf(r->pool);
|
|
|
2222 if (b == NULL) {
|
|
0
|
2223 return NGX_ERROR;
|
|
|
2224 }
|
|
|
2225
|
|
130
|
2226 if (flags & NGX_HTTP_LAST) {
|
|
|
2227 b->last_buf = 1;
|
|
|
2228 }
|
|
|
2229
|
|
|
2230 if (flags & NGX_HTTP_FLUSH) {
|
|
|
2231 b->flush = 1;
|
|
|
2232 }
|
|
|
2233
|
|
0
|
2234 out.buf = b;
|
|
|
2235 out.next = NULL;
|
|
|
2236
|
|
|
2237 return ngx_http_output_filter(r, &out);
|
|
|
2238 }
|
|
|
2239
|
|
|
2240
|
|
162
|
2241 static ngx_int_t
|
|
|
2242 ngx_http_post_action(ngx_http_request_t *r)
|
|
|
2243 {
|
|
|
2244 ngx_http_core_loc_conf_t *clcf;
|
|
|
2245
|
|
|
2246 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
2247
|
|
|
2248 if (clcf->post_action.data == NULL) {
|
|
|
2249 return NGX_DECLINED;
|
|
|
2250 }
|
|
|
2251
|
|
|
2252 r->http_version = NGX_HTTP_VERSION_9;
|
|
|
2253 r->header_only = 1;
|
|
|
2254
|
|
|
2255 ngx_http_internal_redirect(r, &clcf->post_action, NULL);
|
|
|
2256
|
|
|
2257 return NGX_OK;
|
|
|
2258 }
|
|
|
2259
|
|
|
2260
|
|
|
2261 static void
|
|
58
|
2262 ngx_http_close_request(ngx_http_request_t *r, ngx_int_t error)
|
|
0
|
2263 {
|
|
118
|
2264 ngx_connection_t *c;
|
|
|
2265 ngx_http_cleanup_t *cln;
|
|
|
2266
|
|
|
2267 c = r->connection;
|
|
|
2268 r = r->main;
|
|
|
2269
|
|
|
2270 for (cln = r->cleanup; cln; cln = cln->next) {
|
|
|
2271 if (cln->handler) {
|
|
|
2272 cln->handler(cln->data);
|
|
|
2273 }
|
|
|
2274 }
|
|
|
2275
|
|
|
2276 ngx_http_request_done(r, error);
|
|
|
2277 ngx_http_close_connection(c);
|
|
|
2278 }
|
|
|
2279
|
|
|
2280
|
|
162
|
2281 static void
|
|
118
|
2282 ngx_http_request_done(ngx_http_request_t *r, ngx_int_t error)
|
|
|
2283 {
|
|
|
2284 ngx_log_t *log;
|
|
130
|
2285 ngx_uint_t i, n;
|
|
118
|
2286 struct linger linger;
|
|
|
2287 ngx_http_log_ctx_t *ctx;
|
|
130
|
2288 ngx_http_handler_pt *log_handler;
|
|
118
|
2289 ngx_http_core_loc_conf_t *clcf;
|
|
|
2290 ngx_http_core_main_conf_t *cmcf;
|
|
0
|
2291
|
|
|
2292 log = r->connection->log;
|
|
|
2293
|
|
|
2294 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, log, 0, "http close request");
|
|
|
2295
|
|
|
2296 if (r->pool == NULL) {
|
|
80
|
2297 ngx_log_error(NGX_LOG_ALERT, log, 0, "http request already closed");
|
|
0
|
2298 return;
|
|
|
2299 }
|
|
|
2300
|
|
|
2301 #if (NGX_STAT_STUB)
|
|
116
|
2302
|
|
0
|
2303 if (r->stat_reading) {
|
|
110
|
2304 ngx_atomic_fetch_add(ngx_stat_reading, -1);
|
|
0
|
2305 }
|
|
|
2306
|
|
|
2307 if (r->stat_writing) {
|
|
110
|
2308 ngx_atomic_fetch_add(ngx_stat_writing, -1);
|
|
0
|
2309 }
|
|
116
|
2310
|
|
0
|
2311 #endif
|
|
|
2312
|
|
|
2313 if (error && r->headers_out.status == 0) {
|
|
|
2314 r->headers_out.status = error;
|
|
|
2315 }
|
|
|
2316
|
|
118
|
2317 cmcf = ngx_http_get_module_main_conf(r, ngx_http_core_module);
|
|
|
2318
|
|
130
|
2319 log_handler = cmcf->phases[NGX_HTTP_LOG_PHASE].handlers.elts;
|
|
|
2320 n = cmcf->phases[NGX_HTTP_LOG_PHASE].handlers.nelts;
|
|
|
2321 for (i = 0; i < n; i++) {
|
|
|
2322 log_handler[i](r);
|
|
118
|
2323 }
|
|
0
|
2324
|
|
|
2325 if (r->connection->timedout) {
|
|
|
2326 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
2327
|
|
|
2328 if (clcf->reset_timedout_connection) {
|
|
58
|
2329 linger.l_onoff = 1;
|
|
|
2330 linger.l_linger = 0;
|
|
0
|
2331
|
|
|
2332 if (setsockopt(r->connection->fd, SOL_SOCKET, SO_LINGER,
|
|
58
|
2333 (const void *) &linger, sizeof(struct linger)) == -1)
|
|
0
|
2334 {
|
|
|
2335 ngx_log_error(NGX_LOG_ALERT, log, ngx_socket_errno,
|
|
|
2336 "setsockopt(SO_LINGER) failed");
|
|
|
2337 }
|
|
|
2338 }
|
|
|
2339 }
|
|
|
2340
|
|
58
|
2341 /* the various request strings were allocated from r->pool */
|
|
0
|
2342 ctx = log->data;
|
|
10
|
2343 ctx->request = NULL;
|
|
0
|
2344
|
|
|
2345 r->request_line.len = 0;
|
|
|
2346
|
|
132
|
2347 r->connection->destroyed = 1;
|
|
|
2348
|
|
0
|
2349 ngx_destroy_pool(r->pool);
|
|
|
2350 }
|
|
|
2351
|
|
|
2352
|
|
80
|
2353 static void
|
|
50
|
2354 ngx_http_close_connection(ngx_connection_t *c)
|
|
0
|
2355 {
|
|
28
|
2356 ngx_pool_t *pool;
|
|
|
2357
|
|
0
|
2358 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
|
2359 "close http connection: %d", c->fd);
|
|
|
2360
|
|
88
|
2361 #if (NGX_HTTP_SSL)
|
|
2
|
2362
|
|
|
2363 if (c->ssl) {
|
|
|
2364 if (ngx_ssl_shutdown(c) == NGX_AGAIN) {
|
|
126
|
2365 c->ssl->handler = ngx_http_close_connection;
|
|
2
|
2366 return;
|
|
|
2367 }
|
|
|
2368 }
|
|
|
2369
|
|
|
2370 #endif
|
|
|
2371
|
|
0
|
2372 #if (NGX_STAT_STUB)
|
|
110
|
2373 ngx_atomic_fetch_add(ngx_stat_active, -1);
|
|
0
|
2374 #endif
|
|
|
2375
|
|
132
|
2376 c->destroyed = 1;
|
|
|
2377
|
|
28
|
2378 pool = c->pool;
|
|
|
2379
|
|
0
|
2380 ngx_close_connection(c);
|
|
28
|
2381
|
|
50
|
2382 ngx_destroy_pool(pool);
|
|
0
|
2383 }
|
|
|
2384
|
|
|
2385
|
|
50
|
2386 static u_char *
|
|
|
2387 ngx_http_log_error(ngx_log_t *log, u_char *buf, size_t len)
|
|
0
|
2388 {
|
|
32
|
2389 u_char *p;
|
|
54
|
2390 ngx_http_request_t *r;
|
|
32
|
2391 ngx_http_log_ctx_t *ctx;
|
|
10
|
2392
|
|
32
|
2393 if (log->action) {
|
|
58
|
2394 p = ngx_snprintf(buf, len, " while %s", log->action);
|
|
10
|
2395 len -= p - buf;
|
|
54
|
2396 buf = p;
|
|
10
|
2397 }
|
|
|
2398
|
|
58
|
2399 ctx = log->data;
|
|
|
2400
|
|
54
|
2401 p = ngx_snprintf(buf, len, ", client: %V", ctx->client);
|
|
58
|
2402 len -= p - buf;
|
|
54
|
2403
|
|
|
2404 r = ctx->request;
|
|
|
2405
|
|
58
|
2406 if (r) {
|
|
|
2407 return r->log_handler(r, p, len);
|
|
0
|
2408 }
|
|
10
|
2409
|
|
58
|
2410 return p;
|
|
|
2411 }
|
|
|
2412
|
|
|
2413
|
|
|
2414 static u_char *
|
|
|
2415 ngx_http_log_error_handler(ngx_http_request_t *r, u_char *buf, size_t len)
|
|
|
2416 {
|
|
|
2417 u_char *p;
|
|
54
|
2418
|
|
|
2419 if (r->server_name.data) {
|
|
|
2420 p = ngx_snprintf(buf, len, ", server: %V", &r->server_name);
|
|
52
|
2421 len -= p - buf;
|
|
54
|
2422 buf = p;
|
|
52
|
2423 }
|
|
|
2424
|
|
54
|
2425 if (r->unparsed_uri.data) {
|
|
|
2426 p = ngx_snprintf(buf, len, ", URL: \"%V\"", &r->unparsed_uri);
|
|
|
2427 len -= p - buf;
|
|
|
2428 buf = p;
|
|
|
2429
|
|
|
2430 } else {
|
|
|
2431 if (r->request_line.data == NULL && r->request_start) {
|
|
|
2432 for (p = r->request_start; p < r->header_in->last; p++) {
|
|
|
2433 if (*p == CR || *p == LF) {
|
|
|
2434 break;
|
|
|
2435 }
|
|
|
2436 }
|
|
|
2437
|
|
|
2438 r->request_line.len = p - r->request_start;
|
|
|
2439 r->request_line.data = r->request_start;
|
|
|
2440 }
|
|
|
2441
|
|
|
2442 if (r->request_line.len) {
|
|
|
2443 p = ngx_snprintf(buf, len, ", request: \"%V\"", &r->request_line);
|
|
|
2444 len -= p - buf;
|
|
|
2445 buf = p;
|
|
|
2446 }
|
|
10
|
2447 }
|
|
|
2448
|
|
54
|
2449 return ngx_http_log_error_info(r, buf, len);
|
|
0
|
2450 }
|
|
54
|
2451
|
|
|
2452
|
|
|
2453 u_char *
|
|
|
2454 ngx_http_log_error_info(ngx_http_request_t *r, u_char *buf, size_t len)
|
|
|
2455 {
|
|
|
2456 u_char *p;
|
|
|
2457
|
|
|
2458 if (r->headers_in.host) {
|
|
|
2459 p = ngx_snprintf(buf, len, ", host: \"%V\"",
|
|
|
2460 &r->headers_in.host->value);
|
|
|
2461 len -= p - buf;
|
|
|
2462 buf = p;
|
|
|
2463 }
|
|
|
2464
|
|
|
2465 if (r->headers_in.referer) {
|
|
|
2466 p = ngx_snprintf(buf, len, ", referrer: \"%V\"",
|
|
|
2467 &r->headers_in.referer->value);
|
|
|
2468 buf = p;
|
|
|
2469 }
|
|
|
2470
|
|
|
2471 return buf;
|
|
|
2472 }
|
