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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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198
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28 static void ngx_http_find_virtual_server(ngx_http_request_t *r,
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29 ngx_http_virtual_names_t *vn, ngx_uint_t hash);
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0
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30
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58
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31 static void ngx_http_request_handler(ngx_event_t *ev);
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74
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32 static ngx_int_t ngx_http_set_write_handler(ngx_http_request_t *r);
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58
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33 static void ngx_http_writer(ngx_http_request_t *r);
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34
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35 static void ngx_http_block_read(ngx_http_request_t *r);
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0
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36 static void ngx_http_set_keepalive(ngx_http_request_t *r);
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37 static void ngx_http_keepalive_handler(ngx_event_t *ev);
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38 static void ngx_http_set_lingering_close(ngx_http_request_t *r);
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39 static void ngx_http_lingering_close_handler(ngx_event_t *ev);
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162
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40 static ngx_int_t ngx_http_post_action(ngx_http_request_t *r);
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80
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41 static void ngx_http_close_request(ngx_http_request_t *r, ngx_int_t error);
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118
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42 static void ngx_http_request_done(ngx_http_request_t *r, ngx_int_t error);
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80
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43 static void ngx_http_close_connection(ngx_connection_t *c);
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0
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44
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32
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45 static u_char *ngx_http_log_error(ngx_log_t *log, u_char *buf, size_t len);
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58
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46 static u_char *ngx_http_log_error_handler(ngx_http_request_t *r, u_char *buf,
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47 size_t len);
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0
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48
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88
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49 #if (NGX_HTTP_SSL)
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50 static void ngx_http_ssl_handshake(ngx_event_t *rev);
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96
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51 static void ngx_http_ssl_handshake_handler(ngx_connection_t *c);
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88
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52 #endif
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53
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0
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54
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54
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55 static char *ngx_http_client_errors[] = {
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56
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57 /* NGX_HTTP_PARSE_INVALID_METHOD */
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58 "client sent invalid method",
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59
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60 /* NGX_HTTP_PARSE_INVALID_REQUEST */
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61 "client sent invalid request",
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62
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63 /* NGX_HTTP_PARSE_INVALID_09_METHOD */
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64 "client sent invalid method in HTTP/0.9 request"
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0
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65 };
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66
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67
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68 ngx_http_header_t ngx_http_headers_in[] = {
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58
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69 { ngx_string("Host"), offsetof(ngx_http_headers_in_t, host),
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72
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70 ngx_http_process_unique_header_line },
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58
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71
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72 { ngx_string("Connection"), offsetof(ngx_http_headers_in_t, connection),
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72
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73 ngx_http_process_unique_header_line },
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58
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74
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0
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75 { ngx_string("If-Modified-Since"),
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58
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76 offsetof(ngx_http_headers_in_t, if_modified_since),
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77 ngx_http_process_header_line },
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78
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79 { ngx_string("User-Agent"), offsetof(ngx_http_headers_in_t, user_agent),
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80 ngx_http_process_header_line },
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81
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82 { ngx_string("Referer"), offsetof(ngx_http_headers_in_t, referer),
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83 ngx_http_process_header_line },
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84
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0
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85 { ngx_string("Content-Length"),
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58
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86 offsetof(ngx_http_headers_in_t, content_length),
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72
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87 ngx_http_process_unique_header_line },
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58
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88
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28
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89 { ngx_string("Content-Type"),
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58
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90 offsetof(ngx_http_headers_in_t, content_type),
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91 ngx_http_process_header_line },
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92
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93 { ngx_string("Range"), offsetof(ngx_http_headers_in_t, range),
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94 ngx_http_process_header_line },
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95
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130
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96 { ngx_string("Transfer-Encoding"),
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97 offsetof(ngx_http_headers_in_t, transfer_encoding),
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98 ngx_http_process_header_line },
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99
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0
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100 #if (NGX_HTTP_GZIP)
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101 { ngx_string("Accept-Encoding"),
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58
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102 offsetof(ngx_http_headers_in_t, accept_encoding),
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103 ngx_http_process_header_line },
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104
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105 { ngx_string("Via"), offsetof(ngx_http_headers_in_t, via),
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106 ngx_http_process_header_line },
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0
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107 #endif
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108
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109 { ngx_string("Authorization"),
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58
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110 offsetof(ngx_http_headers_in_t, authorization),
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72
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111 ngx_http_process_unique_header_line },
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58
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112
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113 { ngx_string("Keep-Alive"), offsetof(ngx_http_headers_in_t, keep_alive),
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114 ngx_http_process_header_line },
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0
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115
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122
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116 #if (NGX_HTTP_PROXY || NGX_HTTP_REALIP)
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0
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117 { ngx_string("X-Forwarded-For"),
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58
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118 offsetof(ngx_http_headers_in_t, x_forwarded_for),
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119 ngx_http_process_header_line },
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0
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120 #endif
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28
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121
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122
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122 #if (NGX_HTTP_REALIP)
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123 { ngx_string("X-Real-IP"),
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124 offsetof(ngx_http_headers_in_t, x_real_ip),
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125 ngx_http_process_header_line },
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126 #endif
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127
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38
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128 #if (NGX_HTTP_HEADERS)
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58
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129 { ngx_string("Accept"), offsetof(ngx_http_headers_in_t, accept),
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130 ngx_http_process_header_line },
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131
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38
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132 { ngx_string("Accept-Language"),
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58
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133 offsetof(ngx_http_headers_in_t, accept_language),
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134 ngx_http_process_header_line },
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38
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135 #endif
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136
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186
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137 #if (NGX_HTTP_DAV)
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138 { ngx_string("Depth"), offsetof(ngx_http_headers_in_t, depth),
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139 ngx_http_process_header_line },
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140
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141 { ngx_string("Destination"), offsetof(ngx_http_headers_in_t, destination),
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142 ngx_http_process_header_line },
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143 #endif
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144
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58
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145 { ngx_string("Cookie"), 0, ngx_http_process_cookie },
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146
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147 { ngx_null_string, 0, NULL }
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0
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148 };
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149
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150
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50
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151 void
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152 ngx_http_init_connection(ngx_connection_t *c)
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0
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153 {
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154 ngx_event_t *rev;
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155 ngx_http_log_ctx_t *ctx;
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156
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50
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157 ctx = ngx_palloc(c->pool, sizeof(ngx_http_log_ctx_t));
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158 if (ctx == NULL) {
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0
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159 ngx_http_close_connection(c);
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160 return;
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161 }
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162
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10
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163 ctx->client = &c->addr_text;
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164 ctx->request = NULL;
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32
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165
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166 c->log->connection = c->number;
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167 c->log->handler = ngx_http_log_error;
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0
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168 c->log->data = ctx;
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32
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169 c->log->action = "reading client request line";
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170
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0
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171 c->log_error = NGX_ERROR_INFO;
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172
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173 rev = c->read;
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58
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174 rev->handler = ngx_http_init_request;
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118
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175 c->write->handler = ngx_http_empty_handler;
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0
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176
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116
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177 #if (NGX_STAT_STUB)
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178 ngx_atomic_fetch_add(ngx_stat_reading, 1);
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179 #endif
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180
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0
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181 if (rev->ready) {
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182 /* the deferred accept(), rtsig, aio, iocp */
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183
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160
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184 if (ngx_use_accept_mutex) {
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112
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185 ngx_post_event(rev, &ngx_posted_events);
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0
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186 return;
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187 }
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188
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189 ngx_http_init_request(rev);
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190 return;
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191 }
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192
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193 ngx_add_timer(rev, c->listening->post_accept_timeout);
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194
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195 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) {
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116
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196 #if (NGX_STAT_STUB)
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197 ngx_atomic_fetch_add(ngx_stat_reading, -1);
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198 #endif
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0
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199 ngx_http_close_connection(c);
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200 return;
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201 }
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202 }
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203
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204
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190
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205 static void
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206 ngx_http_init_request(ngx_event_t *rev)
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0
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207 {
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190
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208 socklen_t len;
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122
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209 ngx_uint_t i;
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210 struct sockaddr_in sin;
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211 ngx_connection_t *c;
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212 ngx_http_request_t *r;
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142
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213 ngx_http_in_port_t *hip;
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214 ngx_http_in_addr_t *hia;
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122
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215 ngx_http_log_ctx_t *ctx;
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216 ngx_http_connection_t *hc;
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217 ngx_http_core_srv_conf_t *cscf;
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218 ngx_http_core_loc_conf_t *clcf;
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219 ngx_http_core_main_conf_t *cmcf;
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0
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220 #if (NGX_HTTP_SSL)
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122
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221 ngx_http_ssl_srv_conf_t *sscf;
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0
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222 #endif
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223
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116
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224 #if (NGX_STAT_STUB)
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225 ngx_atomic_fetch_add(ngx_stat_reading, -1);
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226 #endif
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227
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0
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228 c = rev->data;
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229
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230 if (rev->timedout) {
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231 ngx_log_error(NGX_LOG_INFO, c->log, NGX_ETIMEDOUT, "client timed out");
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232
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233 ngx_http_close_connection(c);
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234 return;
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235 }
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236
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237 hc = c->data;
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238
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116
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239 if (hc == NULL) {
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50
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240 hc = ngx_pcalloc(c->pool, sizeof(ngx_http_connection_t));
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241 if (hc == NULL) {
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0
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242 ngx_http_close_connection(c);
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243 return;
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244 }
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245 }
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246
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247 r = hc->request;
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248
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249 if (r) {
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250 ngx_memzero(r, sizeof(ngx_http_request_t));
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251
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252 r->pipeline = hc->pipeline;
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253
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254 if (hc->nbusy) {
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255 r->header_in = hc->busy[0];
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256 }
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257
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258 } else {
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50
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259 r = ngx_pcalloc(c->pool, sizeof(ngx_http_request_t));
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260 if (r == NULL) {
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0
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261 ngx_http_close_connection(c);
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262 return;
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263 }
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264
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265 hc->request = r;
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266 }
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267
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268 c->data = r;
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269 r->http_connection = hc;
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270
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271 c->sent = 0;
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272 r->signature = NGX_HTTP_MODULE;
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273
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274 /* find the server configuration for the address:port */
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275
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276 /* AF_INET only */
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277
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190
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278 hip = c->listening->servers;
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142
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279 hia = hip->addrs;
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280
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281 r->port = hip->port;
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282 r->port_text = &hip->port_text;
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0
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283
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284 i = 0;
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285
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142
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286 if (hip->naddrs > 1) {
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0
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287
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288 /*
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289 * There are several addresses on this port and one of them
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290 * is the "*:port" wildcard so getsockname() is needed to determine
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291 * the server address.
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292 *
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293 * AcceptEx() already gave this address.
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294 */
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295
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10
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296 #if (NGX_WIN32)
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0
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297 if (c->local_sockaddr) {
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298 r->in_addr =
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299 ((struct sockaddr_in *) c->local_sockaddr)->sin_addr.s_addr;
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300
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28
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301 } else
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0
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302 #endif
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28
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303 {
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0
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304 len = sizeof(struct sockaddr_in);
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28
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305 if (getsockname(c->fd, (struct sockaddr *) &sin, &len) == -1) {
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0
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306 ngx_connection_error(c, ngx_socket_errno,
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307 "getsockname() failed");
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308 ngx_http_close_connection(c);
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309 return;
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310 }
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311
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28
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312 r->in_addr = sin.sin_addr.s_addr;
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0
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313 }
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314
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190
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315 /* the last address is "*" */
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0
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316
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142
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317 for ( /* void */ ; i < hip->naddrs - 1; i++) {
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318 if (hia[i].addr == r->in_addr) {
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0
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319 break;
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320 }
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321 }
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322
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323 } else {
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142
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324 r->in_addr = hia[0].addr;
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0
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325 }
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326
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142
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327 r->virtual_names = hia[i].virtual_names;
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0
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328
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329 /* the default server configuration for the address:port */
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142
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330 cscf = hia[i].core_srv_conf;
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0
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331
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332 r->main_conf = cscf->ctx->main_conf;
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333 r->srv_conf = cscf->ctx->srv_conf;
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334 r->loc_conf = cscf->ctx->loc_conf;
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335
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142
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336 r->server_name = cscf->server_name;
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337
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58
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338 rev->handler = ngx_http_process_request_line;
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0
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339
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340 #if (NGX_HTTP_SSL)
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341
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342 sscf = ngx_http_get_module_srv_conf(r, ngx_http_ssl_module);
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343 if (sscf->enable) {
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344
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345 if (c->ssl == NULL) {
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96
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346 if (ngx_ssl_create_connection(&sscf->ssl, c, NGX_SSL_BUFFER)
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56
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347 == NGX_ERROR)
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0
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348 {
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349 ngx_http_close_connection(c);
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350 return;
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351 }
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352
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58
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353 rev->handler = ngx_http_ssl_handshake;
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0
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354 }
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355
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62
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356 r->main_filter_need_in_memory = 1;
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0
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357 }
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358
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359 #endif
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360
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361 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
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362 c->log->file = clcf->err_log->file;
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363 if (!(c->log->log_level & NGX_LOG_DEBUG_CONNECTION)) {
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364 c->log->log_level = clcf->err_log->log_level;
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365 }
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366
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367 if (c->buffer == NULL) {
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368 c->buffer = ngx_create_temp_buf(c->pool,
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369 cscf->client_header_buffer_size);
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|
|
370 if (c->buffer == NULL) {
|
|
|
371 ngx_http_close_connection(c);
|
|
|
372 return;
|
|
|
373 }
|
|
|
374 }
|
|
|
375
|
|
|
376 if (r->header_in == NULL) {
|
|
|
377 r->header_in = c->buffer;
|
|
|
378 }
|
|
|
379
|
|
50
|
380 r->pool = ngx_create_pool(cscf->request_pool_size, c->log);
|
|
|
381 if (r->pool == NULL) {
|
|
0
|
382 ngx_http_close_connection(c);
|
|
|
383 return;
|
|
|
384 }
|
|
|
385
|
|
|
386
|
|
|
387 if (ngx_list_init(&r->headers_out.headers, r->pool, 20,
|
|
130
|
388 sizeof(ngx_table_elt_t))
|
|
|
389 == NGX_ERROR)
|
|
0
|
390 {
|
|
|
391 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
392 return;
|
|
|
393 }
|
|
|
394
|
|
|
395 r->ctx = ngx_pcalloc(r->pool, sizeof(void *) * ngx_http_max_module);
|
|
|
396 if (r->ctx == NULL) {
|
|
|
397 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
398 return;
|
|
|
399 }
|
|
|
400
|
|
122
|
401 cmcf = ngx_http_get_module_main_conf(r, ngx_http_core_module);
|
|
|
402
|
|
|
403 r->variables = ngx_pcalloc(r->pool, cmcf->variables.nelts
|
|
|
404 * sizeof(ngx_http_variable_value_t));
|
|
|
405 if (r->variables == NULL) {
|
|
|
406 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
407 return;
|
|
|
408 }
|
|
|
409
|
|
0
|
410 c->single_connection = 1;
|
|
132
|
411 c->destroyed = 0;
|
|
|
412
|
|
0
|
413 r->connection = c;
|
|
|
414
|
|
102
|
415 r->main = r;
|
|
|
416
|
|
46
|
417 r->start_time = ngx_time();
|
|
|
418
|
|
180
|
419 r->method = NGX_HTTP_UNKNOWN;
|
|
|
420
|
|
0
|
421 r->headers_in.content_length_n = -1;
|
|
|
422 r->headers_in.keep_alive_n = -1;
|
|
|
423 r->headers_out.content_length_n = -1;
|
|
|
424 r->headers_out.last_modified_time = -1;
|
|
|
425
|
|
|
426 r->http_state = NGX_HTTP_READING_REQUEST_STATE;
|
|
|
427
|
|
54
|
428 ctx = c->log->data;
|
|
|
429 ctx->request = r;
|
|
58
|
430 r->log_handler = ngx_http_log_error_handler;
|
|
54
|
431
|
|
0
|
432 #if (NGX_STAT_STUB)
|
|
110
|
433 ngx_atomic_fetch_add(ngx_stat_reading, 1);
|
|
26
|
434 r->stat_reading = 1;
|
|
110
|
435 ngx_atomic_fetch_add(ngx_stat_requests, 1);
|
|
0
|
436 #endif
|
|
|
437
|
|
58
|
438 rev->handler(rev);
|
|
0
|
439 }
|
|
|
440
|
|
|
441
|
|
|
442 #if (NGX_HTTP_SSL)
|
|
|
443
|
|
50
|
444 static void
|
|
|
445 ngx_http_ssl_handshake(ngx_event_t *rev)
|
|
0
|
446 {
|
|
10
|
447 u_char buf[1];
|
|
|
448 ssize_t n;
|
|
0
|
449 ngx_int_t rc;
|
|
|
450 ngx_connection_t *c;
|
|
|
451 ngx_http_request_t *r;
|
|
|
452
|
|
|
453 c = rev->data;
|
|
|
454 r = c->data;
|
|
|
455
|
|
|
456 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, rev->log, 0,
|
|
|
457 "http check ssl handshake");
|
|
|
458
|
|
|
459 if (rev->timedout) {
|
|
54
|
460 ngx_log_error(NGX_LOG_INFO, c->log, NGX_ETIMEDOUT, "client timed out");
|
|
|
461 c->timedout = 1;
|
|
|
462 ngx_http_close_request(r, NGX_HTTP_REQUEST_TIME_OUT);
|
|
0
|
463 return;
|
|
|
464 }
|
|
|
465
|
|
132
|
466 n = recv(c->fd, (char *) buf, 1, MSG_PEEK);
|
|
0
|
467
|
|
|
468 if (n == -1 && ngx_socket_errno == NGX_EAGAIN) {
|
|
|
469 return;
|
|
|
470 }
|
|
|
471
|
|
|
472 if (n == 1) {
|
|
|
473 if (buf[0] == 0x80 /* SSLv2 */ || buf[0] == 0x16 /* SSLv3/TLSv1 */) {
|
|
|
474 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, rev->log, 0,
|
|
10
|
475 "https ssl handshake: 0x%02Xd", buf[0]);
|
|
0
|
476
|
|
|
477 rc = ngx_ssl_handshake(c);
|
|
|
478
|
|
96
|
479 if (rc == NGX_AGAIN) {
|
|
|
480 c->ssl->handler = ngx_http_ssl_handshake_handler;
|
|
0
|
481 return;
|
|
|
482 }
|
|
|
483
|
|
96
|
484 ngx_http_ssl_handshake_handler(c);
|
|
|
485
|
|
|
486 return;
|
|
0
|
487
|
|
|
488 } else {
|
|
|
489 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, rev->log, 0,
|
|
|
490 "plain http");
|
|
|
491
|
|
|
492 r->plain_http = 1;
|
|
|
493 }
|
|
|
494 }
|
|
|
495
|
|
58
|
496 rev->handler = ngx_http_process_request_line;
|
|
0
|
497 ngx_http_process_request_line(rev);
|
|
|
498 }
|
|
|
499
|
|
96
|
500
|
|
|
501 static void
|
|
|
502 ngx_http_ssl_handshake_handler(ngx_connection_t *c)
|
|
|
503 {
|
|
|
504 ngx_http_request_t *r;
|
|
|
505
|
|
|
506 if (c->ssl->handshaked) {
|
|
|
507
|
|
|
508 /*
|
|
|
509 * The majority of browsers do not send the "close notify" alert.
|
|
|
510 * Among them are MSIE, old Mozilla, Netscape 4, Konqueror,
|
|
|
511 * and Links. And what is more, MSIE ignores the server's alert.
|
|
|
512 *
|
|
|
513 * Opera and recent Mozilla send the alert.
|
|
|
514 */
|
|
|
515
|
|
|
516 c->ssl->no_wait_shutdown = 1;
|
|
|
517
|
|
|
518 c->read->handler = ngx_http_process_request_line;
|
|
|
519 /* STUB: epoll edge */ c->write->handler = ngx_http_empty_handler;
|
|
|
520
|
|
|
521 ngx_http_process_request_line(c->read);
|
|
|
522
|
|
|
523 return;
|
|
|
524 }
|
|
|
525
|
|
|
526 r = c->data;
|
|
|
527
|
|
|
528 ngx_http_close_request(r, NGX_HTTP_BAD_REQUEST);
|
|
|
529
|
|
|
530 return;
|
|
|
531 }
|
|
|
532
|
|
|
533
|
|
0
|
534 #endif
|
|
|
535
|
|
|
536
|
|
50
|
537 static void
|
|
|
538 ngx_http_process_request_line(ngx_event_t *rev)
|
|
0
|
539 {
|
|
|
540 ssize_t n;
|
|
|
541 ngx_int_t rc, rv;
|
|
|
542 ngx_connection_t *c;
|
|
|
543 ngx_http_request_t *r;
|
|
|
544 ngx_http_log_ctx_t *ctx;
|
|
|
545
|
|
|
546 c = rev->data;
|
|
|
547 r = c->data;
|
|
|
548
|
|
|
549 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, rev->log, 0,
|
|
|
550 "http process request line");
|
|
|
551
|
|
|
552 if (rev->timedout) {
|
|
54
|
553 ngx_log_error(NGX_LOG_INFO, c->log, NGX_ETIMEDOUT, "client timed out");
|
|
|
554 c->timedout = 1;
|
|
|
555 ngx_http_close_request(r, NGX_HTTP_REQUEST_TIME_OUT);
|
|
0
|
556 return;
|
|
|
557 }
|
|
|
558
|
|
|
559 rc = NGX_AGAIN;
|
|
|
560
|
|
|
561 for ( ;; ) {
|
|
|
562
|
|
|
563 if (rc == NGX_AGAIN) {
|
|
|
564 n = ngx_http_read_request_header(r);
|
|
|
565
|
|
|
566 if (n == NGX_AGAIN || n == NGX_ERROR) {
|
|
|
567 return;
|
|
|
568 }
|
|
|
569 }
|
|
|
570
|
|
|
571 rc = ngx_http_parse_request_line(r, r->header_in);
|
|
|
572
|
|
|
573 if (rc == NGX_OK) {
|
|
|
574
|
|
|
575 /* the request line has been parsed successfully */
|
|
|
576
|
|
10
|
577 r->request_line.len = r->request_end - r->request_start;
|
|
|
578 r->request_line.data = r->request_start;
|
|
|
579
|
|
0
|
580
|
|
|
581 if (r->args_start) {
|
|
|
582 r->uri.len = r->args_start - 1 - r->uri_start;
|
|
|
583 } else {
|
|
|
584 r->uri.len = r->uri_end - r->uri_start;
|
|
|
585 }
|
|
|
586
|
|
18
|
587
|
|
2
|
588 if (r->complex_uri || r->quoted_uri) {
|
|
10
|
589
|
|
50
|
590 r->uri.data = ngx_palloc(r->pool, r->uri.len + 1);
|
|
|
591 if (r->uri.data == NULL) {
|
|
10
|
592 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
593 return;
|
|
|
594 }
|
|
|
595
|
|
0
|
596 rc = ngx_http_parse_complex_uri(r);
|
|
|
597
|
|
54
|
598 if (rc == NGX_HTTP_PARSE_INVALID_REQUEST) {
|
|
|
599 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
|
600 "client sent invalid request");
|
|
|
601 ngx_http_finalize_request(r, NGX_HTTP_BAD_REQUEST);
|
|
0
|
602 return;
|
|
|
603 }
|
|
|
604
|
|
|
605 } else {
|
|
10
|
606 r->uri.data = r->uri_start;
|
|
0
|
607 }
|
|
|
608
|
|
18
|
609
|
|
10
|
610 r->unparsed_uri.len = r->uri_end - r->uri_start;
|
|
|
611 r->unparsed_uri.data = r->uri_start;
|
|
|
612
|
|
0
|
613
|
|
58
|
614 r->method_name.len = r->method_end - r->request_start + 1;
|
|
|
615 r->method_name.data = r->request_line.data;
|
|
0
|
616
|
|
10
|
617
|
|
28
|
618 if (r->http_protocol.data) {
|
|
|
619 r->http_protocol.len = r->request_end - r->http_protocol.data;
|
|
|
620 }
|
|
|
621
|
|
|
622
|
|
0
|
623 if (r->uri_ext) {
|
|
|
624 if (r->args_start) {
|
|
|
625 r->exten.len = r->args_start - 1 - r->uri_ext;
|
|
|
626 } else {
|
|
|
627 r->exten.len = r->uri_end - r->uri_ext;
|
|
|
628 }
|
|
|
629
|
|
10
|
630 r->exten.data = r->uri_ext;
|
|
0
|
631 }
|
|
|
632
|
|
10
|
633
|
|
0
|
634 if (r->args_start && r->uri_end > r->args_start) {
|
|
|
635 r->args.len = r->uri_end - r->args_start;
|
|
10
|
636 r->args.data = r->args_start;
|
|
0
|
637 }
|
|
|
638
|
|
10
|
639
|
|
|
640 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
|
641 "http request line: \"%V\"", &r->request_line);
|
|
|
642
|
|
0
|
643 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
10
|
644 "http uri: \"%V\"", &r->uri);
|
|
0
|
645
|
|
|
646 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
10
|
647 "http args: \"%V\"", &r->args);
|
|
0
|
648
|
|
|
649 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
10
|
650 "http exten: \"%V\"", &r->exten);
|
|
|
651
|
|
0
|
652 if (r->http_version < NGX_HTTP_VERSION_10) {
|
|
86
|
653
|
|
|
654 if (rev->timer_set) {
|
|
|
655 ngx_del_timer(rev);
|
|
|
656 }
|
|
|
657
|
|
|
658 #if (NGX_STAT_STUB)
|
|
110
|
659 ngx_atomic_fetch_add(ngx_stat_reading, -1);
|
|
86
|
660 r->stat_reading = 0;
|
|
110
|
661 ngx_atomic_fetch_add(ngx_stat_writing, 1);
|
|
86
|
662 r->stat_writing = 1;
|
|
|
663 #endif
|
|
|
664
|
|
|
665 rev->handler = ngx_http_request_handler;
|
|
|
666 c->write->handler = ngx_http_request_handler;
|
|
58
|
667 r->read_event_handler = ngx_http_block_read;
|
|
86
|
668
|
|
0
|
669 ngx_http_handler(r);
|
|
86
|
670
|
|
0
|
671 return;
|
|
|
672 }
|
|
|
673
|
|
|
674
|
|
|
675 if (ngx_list_init(&r->headers_in.headers, r->pool, 20,
|
|
130
|
676 sizeof(ngx_table_elt_t))
|
|
|
677 == NGX_ERROR)
|
|
0
|
678 {
|
|
|
679 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
680 return;
|
|
|
681 }
|
|
|
682
|
|
|
683
|
|
48
|
684 if (ngx_array_init(&r->headers_in.cookies, r->pool, 2,
|
|
130
|
685 sizeof(ngx_table_elt_t *))
|
|
|
686 == NGX_ERROR)
|
|
0
|
687 {
|
|
|
688 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
689 return;
|
|
|
690 }
|
|
|
691
|
|
32
|
692 c->log->action = "reading client request headers";
|
|
0
|
693
|
|
58
|
694 rev->handler = ngx_http_process_request_headers;
|
|
0
|
695 ngx_http_process_request_headers(rev);
|
|
|
696
|
|
|
697 return;
|
|
54
|
698 }
|
|
|
699
|
|
|
700 if (rc != NGX_AGAIN) {
|
|
0
|
701
|
|
|
702 /* there was error while a request line parsing */
|
|
|
703
|
|
54
|
704 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
|
705 ngx_http_client_errors[rc - NGX_HTTP_CLIENT_ERROR]);
|
|
|
706 ngx_http_finalize_request(r, NGX_HTTP_BAD_REQUEST);
|
|
0
|
707 return;
|
|
|
708 }
|
|
|
709
|
|
|
710 /* NGX_AGAIN: a request line parsing is still incomplete */
|
|
|
711
|
|
|
712 if (r->header_in->pos == r->header_in->end) {
|
|
|
713
|
|
|
714 rv = ngx_http_alloc_large_header_buffer(r, 1);
|
|
|
715
|
|
|
716 if (rv == NGX_ERROR) {
|
|
|
717 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
718 return;
|
|
|
719 }
|
|
|
720
|
|
|
721 if (rv == NGX_DECLINED) {
|
|
54
|
722 ctx = c->log->data;
|
|
|
723 ctx->request = r;
|
|
|
724
|
|
|
725 r->request_line.len = r->header_in->end - r->request_start;
|
|
|
726 r->request_line.data = r->request_start;
|
|
|
727
|
|
|
728 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
|
729 "client sent too long URI");
|
|
|
730 ngx_http_finalize_request(r, NGX_HTTP_REQUEST_URI_TOO_LARGE);
|
|
0
|
731 return;
|
|
|
732 }
|
|
|
733 }
|
|
|
734 }
|
|
|
735 }
|
|
|
736
|
|
|
737
|
|
50
|
738 static void
|
|
|
739 ngx_http_process_request_headers(ngx_event_t *rev)
|
|
0
|
740 {
|
|
56
|
741 ssize_t n;
|
|
|
742 ngx_int_t rc, rv;
|
|
|
743 ngx_str_t header;
|
|
198
|
744 ngx_uint_t i;
|
|
58
|
745 ngx_table_elt_t *h;
|
|
56
|
746 ngx_connection_t *c;
|
|
|
747 ngx_http_header_t *hh;
|
|
|
748 ngx_http_request_t *r;
|
|
60
|
749 ngx_http_core_srv_conf_t *cscf;
|
|
56
|
750 ngx_http_core_main_conf_t *cmcf;
|
|
0
|
751
|
|
|
752 c = rev->data;
|
|
|
753 r = c->data;
|
|
|
754
|
|
|
755 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, rev->log, 0,
|
|
|
756 "http process request header line");
|
|
|
757
|
|
|
758 if (rev->timedout) {
|
|
54
|
759 ngx_log_error(NGX_LOG_INFO, c->log, NGX_ETIMEDOUT, "client timed out");
|
|
|
760 c->timedout = 1;
|
|
|
761 ngx_http_close_request(r, NGX_HTTP_REQUEST_TIME_OUT);
|
|
0
|
762 return;
|
|
|
763 }
|
|
|
764
|
|
56
|
765 cmcf = ngx_http_get_module_main_conf(r, ngx_http_core_module);
|
|
60
|
766 cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
|
|
56
|
767
|
|
0
|
768 rc = NGX_AGAIN;
|
|
|
769
|
|
|
770 for ( ;; ) {
|
|
|
771
|
|
|
772 if (rc == NGX_AGAIN) {
|
|
|
773
|
|
|
774 if (r->header_in->pos == r->header_in->end) {
|
|
|
775
|
|
|
776 rv = ngx_http_alloc_large_header_buffer(r, 0);
|
|
|
777
|
|
|
778 if (rv == NGX_ERROR) {
|
|
|
779 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
780 return;
|
|
|
781 }
|
|
|
782
|
|
|
783 if (rv == NGX_DECLINED) {
|
|
54
|
784 header.len = r->header_in->end - r->header_name_start;
|
|
|
785 header.data = r->header_name_start;
|
|
80
|
786
|
|
|
787 if (header.len > NGX_MAX_ERROR_STR - 300) {
|
|
|
788 header.len = NGX_MAX_ERROR_STR - 300;
|
|
|
789 header.data[header.len++] = '.';
|
|
|
790 header.data[header.len++] = '.';
|
|
|
791 header.data[header.len++] = '.';
|
|
|
792 }
|
|
|
793
|
|
54
|
794 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
|
795 "client sent too long header line: \"%V\"",
|
|
|
796 &header);
|
|
|
797 ngx_http_close_request(r, NGX_HTTP_BAD_REQUEST);
|
|
0
|
798 return;
|
|
|
799 }
|
|
|
800 }
|
|
|
801
|
|
|
802 n = ngx_http_read_request_header(r);
|
|
|
803
|
|
|
804 if (n == NGX_AGAIN || n == NGX_ERROR) {
|
|
|
805 return;
|
|
|
806 }
|
|
|
807 }
|
|
|
808
|
|
|
809 rc = ngx_http_parse_header_line(r, r->header_in);
|
|
|
810
|
|
|
811 if (rc == NGX_OK) {
|
|
|
812
|
|
60
|
813 if (r->invalid_header && cscf->ignore_invalid_headers) {
|
|
52
|
814
|
|
|
815 /* there was error while a header line parsing */
|
|
|
816
|
|
|
817 header.len = r->header_end - r->header_name_start;
|
|
|
818 header.data = r->header_name_start;
|
|
|
819
|
|
54
|
820 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
|
821 "client sent invalid header line: \"%V\"",
|
|
52
|
822 &header);
|
|
|
823 continue;
|
|
|
824 }
|
|
|
825
|
|
0
|
826 /* a header line has been parsed successfully */
|
|
|
827
|
|
50
|
828 h = ngx_list_push(&r->headers_in.headers);
|
|
|
829 if (h == NULL) {
|
|
0
|
830 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
831 return;
|
|
|
832 }
|
|
|
833
|
|
56
|
834 h->hash = r->header_hash;
|
|
|
835
|
|
0
|
836 h->key.len = r->header_name_end - r->header_name_start;
|
|
|
837 h->key.data = r->header_name_start;
|
|
|
838 h->key.data[h->key.len] = '\0';
|
|
|
839
|
|
|
840 h->value.len = r->header_end - r->header_start;
|
|
|
841 h->value.data = r->header_start;
|
|
|
842 h->value.data[h->value.len] = '\0';
|
|
|
843
|
|
198
|
844 h->lowcase_key = ngx_palloc(r->pool, h->key.len);
|
|
|
845 if (h->lowcase_key == NULL) {
|
|
|
846 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
847 return;
|
|
|
848 }
|
|
|
849
|
|
|
850 if (h->key.len == r->lowcase_index) {
|
|
|
851 ngx_memcpy(h->lowcase_key, r->lowcase_header, h->key.len);
|
|
|
852
|
|
|
853 } else {
|
|
|
854 for (i = 0; i < h->key.len; i++) {
|
|
|
855 h->lowcase_key[i] = ngx_tolower(h->lowcase_key[i]);
|
|
0
|
856 }
|
|
|
857 }
|
|
|
858
|
|
198
|
859 hh = ngx_hash_find(&cmcf->headers_in_hash, h->hash,
|
|
|
860 h->lowcase_key, h->key.len);
|
|
|
861
|
|
|
862 if (hh && hh->handler(r, h, hh->offset) != NGX_OK) {
|
|
|
863 return;
|
|
|
864 }
|
|
|
865
|
|
0
|
866 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
10
|
867 "http header: \"%V: %V\"",
|
|
|
868 &h->key, &h->value);
|
|
0
|
869
|
|
|
870 continue;
|
|
54
|
871 }
|
|
|
872
|
|
|
873 if (rc == NGX_HTTP_PARSE_HEADER_DONE) {
|
|
0
|
874
|
|
|
875 /* a whole header has been parsed successfully */
|
|
|
876
|
|
|
877 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
878 "http header done");
|
|
|
879
|
|
24
|
880 r->request_length += r->header_in->pos - r->header_in->start;
|
|
|
881
|
|
0
|
882 r->http_state = NGX_HTTP_PROCESS_REQUEST_STATE;
|
|
|
883
|
|
|
884 rc = ngx_http_process_request_header(r);
|
|
|
885
|
|
|
886 if (rc != NGX_OK) {
|
|
|
887 return;
|
|
|
888 }
|
|
|
889
|
|
|
890 if (rev->timer_set) {
|
|
|
891 ngx_del_timer(rev);
|
|
|
892 }
|
|
|
893
|
|
|
894 #if (NGX_STAT_STUB)
|
|
110
|
895 ngx_atomic_fetch_add(ngx_stat_reading, -1);
|
|
0
|
896 r->stat_reading = 0;
|
|
110
|
897 ngx_atomic_fetch_add(ngx_stat_writing, 1);
|
|
0
|
898 r->stat_writing = 1;
|
|
|
899 #endif
|
|
|
900
|
|
58
|
901 rev->handler = ngx_http_request_handler;
|
|
|
902 c->write->handler = ngx_http_request_handler;
|
|
|
903 r->read_event_handler = ngx_http_block_read;
|
|
|
904
|
|
0
|
905 ngx_http_handler(r);
|
|
86
|
906
|
|
0
|
907 return;
|
|
54
|
908 }
|
|
|
909
|
|
|
910 if (rc == NGX_AGAIN) {
|
|
|
911
|
|
|
912 /* a header line parsing is still not complete */
|
|
|
913
|
|
|
914 continue;
|
|
0
|
915 }
|
|
|
916
|
|
54
|
917 /* rc == NGX_HTTP_PARSE_INVALID_HEADER: "\r" is not followed by "\n" */
|
|
|
918
|
|
|
919 header.len = r->header_end - r->header_name_start;
|
|
|
920 header.data = r->header_name_start;
|
|
|
921 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
|
922 "client sent invalid header line: \"%V\\r...\"",
|
|
|
923 &header);
|
|
|
924 ngx_http_close_request(r, NGX_HTTP_BAD_REQUEST);
|
|
|
925 return;
|
|
0
|
926 }
|
|
|
927 }
|
|
|
928
|
|
|
929
|
|
50
|
930 static ssize_t
|
|
|
931 ngx_http_read_request_header(ngx_http_request_t *r)
|
|
0
|
932 {
|
|
|
933 ssize_t n;
|
|
|
934 ngx_event_t *rev;
|
|
|
935 ngx_http_core_srv_conf_t *cscf;
|
|
|
936
|
|
|
937 rev = r->connection->read;
|
|
|
938
|
|
|
939 n = r->header_in->last - r->header_in->pos;
|
|
|
940
|
|
|
941 if (n > 0) {
|
|
|
942 return n;
|
|
|
943 }
|
|
|
944
|
|
72
|
945 if (rev->ready) {
|
|
|
946 n = r->connection->recv(r->connection, r->header_in->last,
|
|
|
947 r->header_in->end - r->header_in->last);
|
|
|
948 } else {
|
|
|
949 n = NGX_AGAIN;
|
|
0
|
950 }
|
|
|
951
|
|
|
952 if (n == NGX_AGAIN) {
|
|
|
953 if (!r->header_timeout_set) {
|
|
|
954 cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
|
|
|
955 ngx_add_timer(rev, cscf->client_header_timeout);
|
|
|
956 r->header_timeout_set = 1;
|
|
|
957 }
|
|
|
958
|
|
|
959 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) {
|
|
|
960 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
961 return NGX_ERROR;
|
|
|
962 }
|
|
|
963
|
|
|
964 return NGX_AGAIN;
|
|
|
965 }
|
|
|
966
|
|
|
967 if (n == 0) {
|
|
|
968 ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
|
|
|
969 "client closed prematurely connection");
|
|
|
970 }
|
|
|
971
|
|
|
972 if (n == 0 || n == NGX_ERROR) {
|
|
194
|
973 ngx_http_finalize_request(r, NGX_HTTP_BAD_REQUEST);
|
|
0
|
974 return NGX_ERROR;
|
|
|
975 }
|
|
|
976
|
|
|
977 r->header_in->last += n;
|
|
|
978
|
|
|
979 return n;
|
|
|
980 }
|
|
|
981
|
|
|
982
|
|
50
|
983 static ngx_int_t
|
|
|
984 ngx_http_alloc_large_header_buffer(ngx_http_request_t *r,
|
|
|
985 ngx_uint_t request_line)
|
|
0
|
986 {
|
|
|
987 u_char *old, *new;
|
|
|
988 ngx_buf_t *b;
|
|
|
989 ngx_http_connection_t *hc;
|
|
|
990 ngx_http_core_srv_conf_t *cscf;
|
|
|
991
|
|
|
992 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
993 "http alloc large header buffer");
|
|
|
994
|
|
|
995 if (request_line && r->state == 0) {
|
|
|
996
|
|
|
997 /* the client fills up the buffer with "\r\n" */
|
|
|
998
|
|
24
|
999 r->request_length += r->header_in->end - r->header_in->start;
|
|
|
1000
|
|
0
|
1001 r->header_in->pos = r->header_in->start;
|
|
|
1002 r->header_in->last = r->header_in->start;
|
|
|
1003
|
|
|
1004 return NGX_OK;
|
|
|
1005 }
|
|
|
1006
|
|
|
1007 old = request_line ? r->request_start : r->header_name_start;
|
|
|
1008
|
|
|
1009 cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
|
|
|
1010
|
|
|
1011 if (r->state != 0
|
|
|
1012 && (size_t) (r->header_in->pos - old)
|
|
|
1013 >= cscf->large_client_header_buffers.size)
|
|
|
1014 {
|
|
|
1015 return NGX_DECLINED;
|
|
|
1016 }
|
|
|
1017
|
|
|
1018 hc = r->http_connection;
|
|
|
1019
|
|
|
1020 if (hc->nfree) {
|
|
|
1021 b = hc->free[--hc->nfree];
|
|
|
1022
|
|
|
1023 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
10
|
1024 "http large header free: %p %uz",
|
|
0
|
1025 b->pos, b->end - b->last);
|
|
|
1026
|
|
|
1027 } else if (hc->nbusy < cscf->large_client_header_buffers.num) {
|
|
|
1028
|
|
|
1029 if (hc->busy == NULL) {
|
|
|
1030 hc->busy = ngx_palloc(r->connection->pool,
|
|
|
1031 cscf->large_client_header_buffers.num * sizeof(ngx_buf_t *));
|
|
|
1032 if (hc->busy == NULL) {
|
|
|
1033 return NGX_ERROR;
|
|
|
1034 }
|
|
|
1035 }
|
|
|
1036
|
|
|
1037 b = ngx_create_temp_buf(r->connection->pool,
|
|
|
1038 cscf->large_client_header_buffers.size);
|
|
|
1039 if (b == NULL) {
|
|
|
1040 return NGX_ERROR;
|
|
|
1041 }
|
|
|
1042
|
|
|
1043 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
10
|
1044 "http large header alloc: %p %uz",
|
|
0
|
1045 b->pos, b->end - b->last);
|
|
|
1046
|
|
|
1047 } else {
|
|
|
1048 return NGX_DECLINED;
|
|
|
1049 }
|
|
|
1050
|
|
|
1051 hc->busy[hc->nbusy++] = b;
|
|
|
1052
|
|
|
1053 if (r->state == 0) {
|
|
|
1054 /*
|
|
|
1055 * r->state == 0 means that a header line was parsed successfully
|
|
|
1056 * and we do not need to copy incomplete header line and
|
|
|
1057 * to relocate the parser header pointers
|
|
|
1058 */
|
|
|
1059
|
|
24
|
1060 r->request_length += r->header_in->end - r->header_in->start;
|
|
|
1061
|
|
0
|
1062 r->header_in = b;
|
|
|
1063
|
|
|
1064 return NGX_OK;
|
|
|
1065 }
|
|
|
1066
|
|
|
1067 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1068 "http large header copy: %d", r->header_in->pos - old);
|
|
|
1069
|
|
24
|
1070 r->request_length += old - r->header_in->start;
|
|
|
1071
|
|
0
|
1072 new = b->start;
|
|
|
1073
|
|
|
1074 ngx_memcpy(new, old, r->header_in->pos - old);
|
|
|
1075
|
|
|
1076 b->pos = new + (r->header_in->pos - old);
|
|
|
1077 b->last = new + (r->header_in->pos - old);
|
|
|
1078
|
|
|
1079 if (request_line) {
|
|
|
1080 r->request_start = new;
|
|
|
1081
|
|
|
1082 if (r->request_end) {
|
|
|
1083 r->request_end = new + (r->request_end - old);
|
|
|
1084 }
|
|
|
1085
|
|
|
1086 r->method_end = new + (r->method_end - old);
|
|
|
1087
|
|
|
1088 r->uri_start = new + (r->uri_start - old);
|
|
|
1089 r->uri_end = new + (r->uri_end - old);
|
|
|
1090
|
|
|
1091 if (r->schema_start) {
|
|
|
1092 r->schema_start = new + (r->schema_start - old);
|
|
|
1093 r->schema_end = new + (r->schema_end - old);
|
|
|
1094 }
|
|
|
1095
|
|
|
1096 if (r->host_start) {
|
|
|
1097 r->host_start = new + (r->host_start - old);
|
|
|
1098 r->host_end = new + (r->host_end - old);
|
|
|
1099 }
|
|
|
1100
|
|
|
1101 if (r->port_start) {
|
|
|
1102 r->port_start = new + (r->port_start - old);
|
|
|
1103 r->port_end = new + (r->port_end - old);
|
|
|
1104 }
|
|
|
1105
|
|
|
1106 if (r->uri_ext) {
|
|
|
1107 r->uri_ext = new + (r->uri_ext - old);
|
|
|
1108 }
|
|
|
1109
|
|
|
1110 if (r->args_start) {
|
|
|
1111 r->args_start = new + (r->args_start - old);
|
|
|
1112 }
|
|
|
1113
|
|
|
1114 } else {
|
|
|
1115 r->header_name_start = new;
|
|
|
1116 r->header_name_end = new + (r->header_name_end - old);
|
|
|
1117 r->header_start = new + (r->header_start - old);
|
|
|
1118 r->header_end = new + (r->header_end - old);
|
|
|
1119 }
|
|
|
1120
|
|
|
1121 r->header_in = b;
|
|
|
1122
|
|
|
1123 return NGX_OK;
|
|
|
1124 }
|
|
|
1125
|
|
|
1126
|
|
50
|
1127 static ngx_int_t
|
|
58
|
1128 ngx_http_process_header_line(ngx_http_request_t *r, ngx_table_elt_t *h,
|
|
|
1129 ngx_uint_t offset)
|
|
|
1130 {
|
|
|
1131 ngx_table_elt_t **ph;
|
|
|
1132
|
|
|
1133 ph = (ngx_table_elt_t **) ((char *) &r->headers_in + offset);
|
|
|
1134
|
|
|
1135 if (*ph == NULL) {
|
|
|
1136 *ph = h;
|
|
|
1137 }
|
|
|
1138
|
|
|
1139 return NGX_OK;
|
|
|
1140 }
|
|
|
1141
|
|
|
1142
|
|
|
1143 static ngx_int_t
|
|
72
|
1144 ngx_http_process_unique_header_line(ngx_http_request_t *r, ngx_table_elt_t *h,
|
|
|
1145 ngx_uint_t offset)
|
|
|
1146 {
|
|
|
1147 ngx_table_elt_t **ph;
|
|
|
1148
|
|
|
1149 ph = (ngx_table_elt_t **) ((char *) &r->headers_in + offset);
|
|
|
1150
|
|
|
1151 if (*ph == NULL) {
|
|
|
1152 *ph = h;
|
|
|
1153 return NGX_OK;
|
|
|
1154 }
|
|
|
1155
|
|
|
1156 ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
|
|
|
1157 "client sent duplicate header line: \"%V: %V\"",
|
|
|
1158 &h->key, &h->value);
|
|
|
1159
|
|
|
1160 ngx_http_finalize_request(r, NGX_HTTP_BAD_REQUEST);
|
|
|
1161
|
|
|
1162 return NGX_ERROR;
|
|
|
1163 }
|
|
|
1164
|
|
|
1165
|
|
|
1166 static ngx_int_t
|
|
58
|
1167 ngx_http_process_cookie(ngx_http_request_t *r, ngx_table_elt_t *h,
|
|
|
1168 ngx_uint_t offset)
|
|
|
1169 {
|
|
|
1170 ngx_table_elt_t **cookie;
|
|
|
1171
|
|
|
1172 cookie = ngx_array_push(&r->headers_in.cookies);
|
|
72
|
1173 if (cookie) {
|
|
|
1174 *cookie = h;
|
|
|
1175 return NGX_OK;
|
|
58
|
1176 }
|
|
|
1177
|
|
72
|
1178 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
1179
|
|
|
1180 return NGX_ERROR;
|
|
58
|
1181 }
|
|
|
1182
|
|
|
1183
|
|
|
1184 static ngx_int_t
|
|
50
|
1185 ngx_http_process_request_header(ngx_http_request_t *r)
|
|
0
|
1186 {
|
|
196
|
1187 size_t len;
|
|
|
1188 u_char *ua, *user_agent, ch;
|
|
198
|
1189 ngx_uint_t hash;
|
|
196
|
1190 #if (NGX_HTTP_SSL)
|
|
|
1191 long rc;
|
|
|
1192 ngx_http_ssl_srv_conf_t *sscf;
|
|
|
1193 #endif
|
|
0
|
1194
|
|
|
1195 if (r->headers_in.host) {
|
|
198
|
1196
|
|
|
1197 hash = 0;
|
|
|
1198
|
|
0
|
1199 for (len = 0; len < r->headers_in.host->value.len; len++) {
|
|
26
|
1200 ch = r->headers_in.host->value.data[len];
|
|
|
1201
|
|
|
1202 if (ch == ':') {
|
|
0
|
1203 break;
|
|
|
1204 }
|
|
26
|
1205
|
|
198
|
1206 ch = ngx_tolower(ch);
|
|
|
1207 r->headers_in.host->value.data[len] = ch;
|
|
|
1208 hash = ngx_hash(hash, ch);
|
|
0
|
1209 }
|
|
54
|
1210
|
|
198
|
1211 if (len && r->headers_in.host->value.data[len - 1] == '.') {
|
|
58
|
1212 len--;
|
|
198
|
1213 hash = ngx_hash_key(r->headers_in.host->value.data, len);
|
|
58
|
1214 }
|
|
|
1215
|
|
0
|
1216 r->headers_in.host_name_len = len;
|
|
|
1217
|
|
198
|
1218 if (r->virtual_names) {
|
|
|
1219 ngx_http_find_virtual_server(r, r->virtual_names, hash);
|
|
|
1220 }
|
|
0
|
1221
|
|
|
1222 } else {
|
|
|
1223 if (r->http_version > NGX_HTTP_VERSION_10) {
|
|
54
|
1224 ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
|
|
|
1225 "client sent HTTP/1.1 request without \"Host\" header");
|
|
|
1226 ngx_http_finalize_request(r, NGX_HTTP_BAD_REQUEST);
|
|
|
1227 return NGX_ERROR;
|
|
0
|
1228 }
|
|
54
|
1229
|
|
0
|
1230 r->headers_in.host_name_len = 0;
|
|
|
1231 }
|
|
|
1232
|
|
|
1233 if (r->headers_in.content_length) {
|
|
|
1234 r->headers_in.content_length_n =
|
|
50
|
1235 ngx_atosz(r->headers_in.content_length->value.data,
|
|
0
|
1236 r->headers_in.content_length->value.len);
|
|
|
1237
|
|
|
1238 if (r->headers_in.content_length_n == NGX_ERROR) {
|
|
54
|
1239 ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
|
|
|
1240 "client sent invalid \"Content-Length\" header");
|
|
130
|
1241 ngx_http_finalize_request(r, NGX_HTTP_LENGTH_REQUIRED);
|
|
54
|
1242 return NGX_ERROR;
|
|
0
|
1243 }
|
|
|
1244 }
|
|
|
1245
|
|
188
|
1246 if (r->method & (NGX_HTTP_POST|NGX_HTTP_PUT)
|
|
|
1247 && r->headers_in.content_length_n == -1)
|
|
|
1248 {
|
|
54
|
1249 ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
|
|
|
1250 "client sent POST method without \"Content-Length\" header");
|
|
130
|
1251 ngx_http_finalize_request(r, NGX_HTTP_LENGTH_REQUIRED);
|
|
|
1252 return NGX_ERROR;
|
|
|
1253 }
|
|
|
1254
|
|
|
1255 if (r->headers_in.transfer_encoding
|
|
|
1256 && ngx_strstr(r->headers_in.transfer_encoding->value.data, "chunked"))
|
|
|
1257 {
|
|
|
1258 ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
|
|
|
1259 "client sent \"Transfer-Encoding: chunked\" header");
|
|
|
1260 ngx_http_finalize_request(r, NGX_HTTP_LENGTH_REQUIRED);
|
|
54
|
1261 return NGX_ERROR;
|
|
0
|
1262 }
|
|
|
1263
|
|
|
1264 if (r->plain_http) {
|
|
54
|
1265 ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
|
|
|
1266 "client sent plain HTTP request to HTTPS port");
|
|
|
1267 ngx_http_finalize_request(r, NGX_HTTP_TO_HTTPS);
|
|
|
1268 return NGX_ERROR;
|
|
0
|
1269 }
|
|
|
1270
|
|
196
|
1271 #if (NGX_HTTP_SSL)
|
|
|
1272
|
|
|
1273 if (r->connection->ssl) {
|
|
|
1274 sscf = ngx_http_get_module_srv_conf(r, ngx_http_ssl_module);
|
|
|
1275
|
|
|
1276 if (sscf->verify) {
|
|
|
1277 rc = SSL_get_verify_result(r->connection->ssl->connection);
|
|
|
1278
|
|
|
1279 if (rc != X509_V_OK) {
|
|
|
1280 ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
|
|
|
1281 "client SSL certificate verify error: %l ", rc);
|
|
|
1282 ngx_http_finalize_request(r, NGX_HTTPS_CERT_ERROR);
|
|
|
1283 return NGX_ERROR;
|
|
|
1284 }
|
|
|
1285
|
|
|
1286 if (SSL_get_peer_certificate(r->connection->ssl->connection)
|
|
|
1287 == NULL)
|
|
|
1288 {
|
|
|
1289 ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
|
|
|
1290 "client sent no required SSL certificate");
|
|
|
1291 ngx_http_finalize_request(r, NGX_HTTPS_NO_CERT);
|
|
|
1292 return NGX_ERROR;
|
|
|
1293 }
|
|
|
1294 }
|
|
|
1295 }
|
|
|
1296
|
|
|
1297 #endif
|
|
|
1298
|
|
0
|
1299 if (r->headers_in.connection) {
|
|
|
1300 if (r->headers_in.connection->value.len == 5
|
|
|
1301 && ngx_strcasecmp(r->headers_in.connection->value.data, "close")
|
|
58
|
1302 == 0)
|
|
0
|
1303 {
|
|
|
1304 r->headers_in.connection_type = NGX_HTTP_CONNECTION_CLOSE;
|
|
|
1305
|
|
|
1306 } else if (r->headers_in.connection->value.len == 10
|
|
|
1307 && ngx_strcasecmp(r->headers_in.connection->value.data,
|
|
58
|
1308 "keep-alive") == 0)
|
|
0
|
1309 {
|
|
|
1310 r->headers_in.connection_type = NGX_HTTP_CONNECTION_KEEP_ALIVE;
|
|
|
1311
|
|
|
1312 if (r->headers_in.keep_alive) {
|
|
|
1313 r->headers_in.keep_alive_n =
|
|
50
|
1314 ngx_atotm(r->headers_in.keep_alive->value.data,
|
|
0
|
1315 r->headers_in.keep_alive->value.len);
|
|
|
1316 }
|
|
|
1317 }
|
|
|
1318 }
|
|
|
1319
|
|
|
1320 if (r->headers_in.user_agent) {
|
|
|
1321
|
|
|
1322 /*
|
|
|
1323 * check some widespread browsers while the headers are still
|
|
|
1324 * in CPU cache
|
|
|
1325 */
|
|
|
1326
|
|
|
1327 user_agent = r->headers_in.user_agent->value.data;
|
|
|
1328
|
|
|
1329 ua = (u_char *) ngx_strstr(user_agent, "MSIE");
|
|
|
1330
|
|
|
1331 if (ua && ua + 8 < user_agent + r->headers_in.user_agent->value.len) {
|
|
|
1332
|
|
|
1333 r->headers_in.msie = 1;
|
|
|
1334
|
|
|
1335 if (ua[4] == ' ' && ua[5] == '4' && ua[6] == '.') {
|
|
|
1336 r->headers_in.msie4 = 1;
|
|
|
1337 }
|
|
|
1338
|
|
|
1339 #if 0
|
|
|
1340 /* MSIE ignores the SSL "close notify" alert */
|
|
22
|
1341 if (c->ssl) {
|
|
96
|
1342 c->ssl->no_send_shutdown = 1;
|
|
22
|
1343 }
|
|
0
|
1344 #endif
|
|
|
1345 }
|
|
|
1346
|
|
|
1347 if (ngx_strstr(user_agent, "Opera")) {
|
|
|
1348 r->headers_in.opera = 1;
|
|
|
1349 r->headers_in.msie = 0;
|
|
|
1350 r->headers_in.msie4 = 0;
|
|
|
1351 }
|
|
|
1352
|
|
|
1353 if (!r->headers_in.msie && !r->headers_in.opera) {
|
|
|
1354
|
|
|
1355 if (ngx_strstr(user_agent, "Gecko/")) {
|
|
|
1356 r->headers_in.gecko = 1;
|
|
|
1357
|
|
|
1358 } else if (ngx_strstr(user_agent, "Konqueror")) {
|
|
|
1359 r->headers_in.konqueror = 1;
|
|
|
1360 }
|
|
|
1361 }
|
|
|
1362 }
|
|
|
1363
|
|
|
1364 return NGX_OK;
|
|
|
1365 }
|
|
|
1366
|
|
|
1367
|
|
162
|
1368 static void
|
|
198
|
1369 ngx_http_find_virtual_server(ngx_http_request_t *r,
|
|
|
1370 ngx_http_virtual_names_t *vn, ngx_uint_t hash)
|
|
26
|
1371 {
|
|
142
|
1372 size_t len;
|
|
|
1373 u_char *host;
|
|
|
1374 ngx_http_core_loc_conf_t *clcf;
|
|
|
1375 ngx_http_core_srv_conf_t *cscf;
|
|
|
1376
|
|
|
1377 host = r->headers_in.host->value.data;
|
|
|
1378 len = r->headers_in.host_name_len;
|
|
|
1379
|
|
|
1380 if (vn->hash.buckets) {
|
|
198
|
1381 cscf = ngx_hash_find(&vn->hash, hash, host, len);
|
|
142
|
1382 if (cscf) {
|
|
58
|
1383 goto found;
|
|
26
|
1384 }
|
|
|
1385 }
|
|
|
1386
|
|
142
|
1387 if (vn->dns_wildcards && vn->dns_wildcards->hash.buckets) {
|
|
|
1388 cscf = ngx_hash_find_wildcard(vn->dns_wildcards, host, len);
|
|
|
1389
|
|
|
1390 if (cscf) {
|
|
|
1391 goto found;
|
|
26
|
1392 }
|
|
|
1393 }
|
|
|
1394
|
|
162
|
1395 return;
|
|
58
|
1396
|
|
|
1397 found:
|
|
|
1398
|
|
142
|
1399 r->server_name.len = len;
|
|
|
1400 r->server_name.data = host;
|
|
|
1401
|
|
|
1402 r->srv_conf = cscf->ctx->srv_conf;
|
|
|
1403 r->loc_conf = cscf->ctx->loc_conf;
|
|
58
|
1404
|
|
|
1405 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
1406 r->connection->log->file = clcf->err_log->file;
|
|
|
1407
|
|
|
1408 if (!(r->connection->log->log_level & NGX_LOG_DEBUG_CONNECTION)) {
|
|
|
1409 r->connection->log->log_level = clcf->err_log->log_level;
|
|
26
|
1410 }
|
|
|
1411
|
|
162
|
1412 return;
|
|
26
|
1413 }
|
|
|
1414
|
|
|
1415
|
|
58
|
1416 static void
|
|
|
1417 ngx_http_request_handler(ngx_event_t *ev)
|
|
|
1418 {
|
|
|
1419 ngx_connection_t *c;
|
|
|
1420 ngx_http_request_t *r;
|
|
|
1421
|
|
|
1422 c = ev->data;
|
|
|
1423 r = c->data;
|
|
|
1424
|
|
|
1425 if (ev->write) {
|
|
|
1426 r->write_event_handler(r);
|
|
|
1427
|
|
|
1428 } else {
|
|
|
1429 r->read_event_handler(r);
|
|
|
1430 }
|
|
|
1431 }
|
|
|
1432
|
|
|
1433
|
|
50
|
1434 void
|
|
58
|
1435 ngx_http_finalize_request(ngx_http_request_t *r, ngx_int_t rc)
|
|
0
|
1436 {
|
|
58
|
1437 ngx_http_request_t *pr;
|
|
0
|
1438 ngx_http_core_loc_conf_t *clcf;
|
|
|
1439
|
|
58
|
1440 if (rc == NGX_DONE) {
|
|
118
|
1441 /* the request pool may be already destroyed */
|
|
58
|
1442 return;
|
|
|
1443 }
|
|
|
1444
|
|
132
|
1445 ngx_log_debug3(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1446 "http finalize request: %d, \"%V?%V\"",
|
|
|
1447 rc, &r->uri, &r->args);
|
|
|
1448
|
|
162
|
1449 if (rc == NGX_ERROR
|
|
|
1450 || rc == NGX_HTTP_REQUEST_TIME_OUT
|
|
|
1451 || r->connection->error)
|
|
|
1452 {
|
|
190
|
1453 if (rc == NGX_HTTP_CLIENT_CLOSED_REQUEST
|
|
|
1454 && r->headers_out.status == 0)
|
|
|
1455 {
|
|
|
1456 r->headers_out.status = NGX_HTTP_CLIENT_CLOSED_REQUEST;
|
|
|
1457 }
|
|
|
1458
|
|
162
|
1459 if (ngx_http_post_action(r) == NGX_OK) {
|
|
|
1460 return;
|
|
|
1461 }
|
|
|
1462
|
|
118
|
1463 ngx_http_close_request(r, 0);
|
|
0
|
1464 return;
|
|
|
1465 }
|
|
|
1466
|
|
186
|
1467 if (rc >= NGX_HTTP_SPECIAL_RESPONSE
|
|
|
1468 || rc == NGX_HTTP_CREATED
|
|
|
1469 || rc == NGX_HTTP_NO_CONTENT)
|
|
|
1470 {
|
|
118
|
1471
|
|
136
|
1472 if (rc == NGX_HTTP_CLOSE) {
|
|
|
1473 ngx_http_close_request(r, rc);
|
|
|
1474 return;
|
|
|
1475 }
|
|
|
1476
|
|
146
|
1477 if (r == r->main) {
|
|
118
|
1478 if (r->connection->read->timer_set) {
|
|
|
1479 ngx_del_timer(r->connection->read);
|
|
|
1480 }
|
|
|
1481
|
|
|
1482 if (r->connection->write->timer_set) {
|
|
|
1483 ngx_del_timer(r->connection->write);
|
|
|
1484 }
|
|
|
1485 }
|
|
|
1486
|
|
|
1487 ngx_http_finalize_request(r, ngx_http_special_response_handler(r, rc));
|
|
|
1488 return;
|
|
|
1489 }
|
|
|
1490
|
|
146
|
1491 if (r != r->main || rc == NGX_AGAIN) {
|
|
74
|
1492 if (ngx_http_set_write_handler(r) != NGX_OK) {
|
|
|
1493 return;
|
|
|
1494 }
|
|
58
|
1495 }
|
|
|
1496
|
|
|
1497 r->done = 1;
|
|
|
1498
|
|
|
1499 if (r != r->connection->data) {
|
|
132
|
1500 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1501 "http finalize non-active request: \"%V?%V\"",
|
|
|
1502 &r->uri, &r->args);
|
|
58
|
1503 return;
|
|
|
1504 }
|
|
|
1505
|
|
146
|
1506 if (r != r->main) {
|
|
58
|
1507
|
|
|
1508 pr = r->parent;
|
|
|
1509
|
|
132
|
1510 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1511 "http parent request: \"%V?%V\"", &pr->uri, &pr->args);
|
|
76
|
1512
|
|
58
|
1513 if (rc != NGX_AGAIN) {
|
|
146
|
1514 r->connection->data = pr;
|
|
58
|
1515 }
|
|
|
1516
|
|
|
1517 if (pr->postponed) {
|
|
|
1518
|
|
132
|
1519 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1520 "http request: \"%V?%V\" has postponed",
|
|
|
1521 &pr->uri, &pr->args);
|
|
76
|
1522
|
|
58
|
1523 if (rc != NGX_AGAIN && pr->postponed->request == r) {
|
|
|
1524 pr->postponed = pr->postponed->next;
|
|
146
|
1525 }
|
|
|
1526
|
|
|
1527 if (r->fast_subrequest) {
|
|
194
|
1528
|
|
|
1529 if (rc == NGX_AGAIN) {
|
|
|
1530 r->fast_subrequest = 0;
|
|
|
1531 }
|
|
|
1532
|
|
146
|
1533 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1534 "http fast subrequest: \"%V?%V\" done",
|
|
|
1535 &r->uri, &r->args);
|
|
|
1536 return;
|
|
58
|
1537 }
|
|
|
1538
|
|
194
|
1539 if (rc != NGX_AGAIN) {
|
|
|
1540 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1541 "http wake parent request: \"%V?%V\"",
|
|
|
1542 &pr->uri, &pr->args);
|
|
|
1543
|
|
|
1544 pr->write_event_handler(pr);
|
|
|
1545 }
|
|
58
|
1546 }
|
|
|
1547
|
|
|
1548 return;
|
|
|
1549 }
|
|
0
|
1550
|
|
118
|
1551 if (rc == NGX_AGAIN) {
|
|
0
|
1552 return;
|
|
76
|
1553 }
|
|
|
1554
|
|
146
|
1555 if (r->connection->buffered) {
|
|
74
|
1556 (void) ngx_http_set_write_handler(r);
|
|
0
|
1557 return;
|
|
|
1558 }
|
|
|
1559
|
|
178
|
1560 if (!r->post_action) {
|
|
|
1561 r->request_complete = 1;
|
|
|
1562 }
|
|
|
1563
|
|
162
|
1564 if (ngx_http_post_action(r) == NGX_OK) {
|
|
126
|
1565 return;
|
|
|
1566 }
|
|
|
1567
|
|
0
|
1568 if (r->connection->read->timer_set) {
|
|
|
1569 ngx_del_timer(r->connection->read);
|
|
|
1570 }
|
|
|
1571
|
|
|
1572 if (r->connection->write->timer_set) {
|
|
|
1573 r->connection->write->delayed = 0;
|
|
|
1574 ngx_del_timer(r->connection->write);
|
|
|
1575 }
|
|
|
1576
|
|
138
|
1577 if (r->connection->destroyed) {
|
|
|
1578 return;
|
|
|
1579 }
|
|
|
1580
|
|
162
|
1581 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
0
|
1582
|
|
|
1583 if (!ngx_terminate
|
|
|
1584 && !ngx_exiting
|
|
|
1585 && r->keepalive != 0
|
|
|
1586 && clcf->keepalive_timeout > 0)
|
|
|
1587 {
|
|
|
1588 ngx_http_set_keepalive(r);
|
|
|
1589 return;
|
|
|
1590
|
|
|
1591 } else if (r->lingering_close && clcf->lingering_timeout > 0) {
|
|
|
1592 ngx_http_set_lingering_close(r);
|
|
|
1593 return;
|
|
|
1594 }
|
|
|
1595
|
|
|
1596 ngx_http_close_request(r, 0);
|
|
|
1597 }
|
|
|
1598
|
|
|
1599
|
|
74
|
1600 static ngx_int_t
|
|
50
|
1601 ngx_http_set_write_handler(ngx_http_request_t *r)
|
|
0
|
1602 {
|
|
|
1603 ngx_event_t *wev;
|
|
|
1604 ngx_http_core_loc_conf_t *clcf;
|
|
|
1605
|
|
58
|
1606 r->http_state = NGX_HTTP_WRITING_REQUEST_STATE;
|
|
|
1607
|
|
74
|
1608 r->write_event_handler = ngx_http_writer;
|
|
|
1609
|
|
0
|
1610 wev = r->connection->write;
|
|
|
1611
|
|
|
1612 if (wev->ready && wev->delayed) {
|
|
74
|
1613 return NGX_OK;
|
|
0
|
1614 }
|
|
|
1615
|
|
58
|
1616 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
0
|
1617 if (!wev->delayed) {
|
|
|
1618 ngx_add_timer(wev, clcf->send_timeout);
|
|
|
1619 }
|
|
|
1620
|
|
2
|
1621 if (ngx_handle_write_event(wev, clcf->send_lowat) == NGX_ERROR) {
|
|
0
|
1622 ngx_http_close_request(r, 0);
|
|
74
|
1623 return NGX_ERROR;
|
|
0
|
1624 }
|
|
74
|
1625
|
|
|
1626 return NGX_OK;
|
|
0
|
1627 }
|
|
|
1628
|
|
|
1629
|
|
58
|
1630 static void
|
|
|
1631 ngx_http_writer(ngx_http_request_t *r)
|
|
0
|
1632 {
|
|
|
1633 int rc;
|
|
58
|
1634 ngx_event_t *wev;
|
|
0
|
1635 ngx_connection_t *c;
|
|
|
1636 ngx_http_core_loc_conf_t *clcf;
|
|
|
1637
|
|
58
|
1638 c = r->connection;
|
|
|
1639 wev = c->write;
|
|
|
1640
|
|
132
|
1641 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, wev->log, 0,
|
|
|
1642 "http writer handler: \"%V?%V\"", &r->uri, &r->args);
|
|
0
|
1643
|
|
|
1644 if (wev->timedout) {
|
|
|
1645 if (!wev->delayed) {
|
|
54
|
1646 ngx_log_error(NGX_LOG_INFO, c->log, NGX_ETIMEDOUT,
|
|
|
1647 "client timed out");
|
|
|
1648 c->timedout = 1;
|
|
116
|
1649
|
|
162
|
1650 ngx_http_finalize_request(r, NGX_HTTP_REQUEST_TIME_OUT);
|
|
0
|
1651 return;
|
|
|
1652 }
|
|
|
1653
|
|
|
1654 wev->timedout = 0;
|
|
|
1655 wev->delayed = 0;
|
|
|
1656
|
|
|
1657 if (!wev->ready) {
|
|
102
|
1658 clcf = ngx_http_get_module_loc_conf(r->main, ngx_http_core_module);
|
|
0
|
1659 ngx_add_timer(wev, clcf->send_timeout);
|
|
|
1660
|
|
2
|
1661 if (ngx_handle_write_event(wev, clcf->send_lowat) == NGX_ERROR) {
|
|
118
|
1662 ngx_http_close_request(r, 0);
|
|
0
|
1663 }
|
|
|
1664
|
|
|
1665 return;
|
|
|
1666 }
|
|
|
1667
|
|
|
1668 } else {
|
|
|
1669 if (wev->delayed) {
|
|
|
1670 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, wev->log, 0,
|
|
|
1671 "http writer delayed");
|
|
|
1672
|
|
102
|
1673 clcf = ngx_http_get_module_loc_conf(r->main, ngx_http_core_module);
|
|
2
|
1674
|
|
|
1675 if (ngx_handle_write_event(wev, clcf->send_lowat) == NGX_ERROR) {
|
|
118
|
1676 ngx_http_close_request(r, 0);
|
|
0
|
1677 }
|
|
|
1678
|
|
|
1679 return;
|
|
|
1680 }
|
|
|
1681 }
|
|
|
1682
|
|
132
|
1683 rc = ngx_http_output_filter(r, NULL);
|
|
|
1684
|
|
|
1685 if (c->destroyed) {
|
|
|
1686 return;
|
|
58
|
1687 }
|
|
|
1688
|
|
132
|
1689 ngx_log_debug3(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
|
1690 "http writer output filter: %d, \"%V?%V\"",
|
|
|
1691 rc, &r->uri, &r->args);
|
|
0
|
1692
|
|
|
1693 if (rc == NGX_AGAIN) {
|
|
102
|
1694 clcf = ngx_http_get_module_loc_conf(r->main, ngx_http_core_module);
|
|
0
|
1695 if (!wev->ready && !wev->delayed) {
|
|
|
1696 ngx_add_timer(wev, clcf->send_timeout);
|
|
|
1697 }
|
|
|
1698
|
|
2
|
1699 if (ngx_handle_write_event(wev, clcf->send_lowat) == NGX_ERROR) {
|
|
118
|
1700 ngx_http_close_request(r, 0);
|
|
0
|
1701 }
|
|
|
1702
|
|
146
|
1703 if (r == r->main) {
|
|
|
1704 return;
|
|
|
1705 }
|
|
|
1706
|
|
|
1707 rc = NGX_OK;
|
|
0
|
1708 }
|
|
|
1709
|
|
132
|
1710 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, wev->log, 0,
|
|
|
1711 "http writer done: \"%V?%V\"", &r->uri, &r->args);
|
|
0
|
1712
|
|
|
1713 ngx_http_finalize_request(r, rc);
|
|
|
1714 }
|
|
|
1715
|
|
|
1716
|
|
50
|
1717 static void
|
|
58
|
1718 ngx_http_block_read(ngx_http_request_t *r)
|
|
0
|
1719 {
|
|
58
|
1720 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1721 "http read blocked");
|
|
0
|
1722
|
|
|
1723 /* aio does not call this handler */
|
|
|
1724
|
|
58
|
1725 if ((ngx_event_flags & NGX_USE_LEVEL_EVENT)
|
|
|
1726 && r->connection->read->active)
|
|
|
1727 {
|
|
|
1728 if (ngx_del_event(r->connection->read, NGX_READ_EVENT, 0)
|
|
|
1729 == NGX_ERROR)
|
|
|
1730 {
|
|
0
|
1731 ngx_http_close_request(r, 0);
|
|
|
1732 }
|
|
|
1733 }
|
|
|
1734 }
|
|
|
1735
|
|
|
1736
|
|
50
|
1737 static void
|
|
|
1738 ngx_http_set_keepalive(ngx_http_request_t *r)
|
|
0
|
1739 {
|
|
2
|
1740 int tcp_nodelay;
|
|
0
|
1741 ngx_int_t i;
|
|
|
1742 ngx_buf_t *b, *f;
|
|
|
1743 ngx_event_t *rev, *wev;
|
|
|
1744 ngx_connection_t *c;
|
|
|
1745 ngx_http_connection_t *hc;
|
|
|
1746 ngx_http_core_srv_conf_t *cscf;
|
|
|
1747 ngx_http_core_loc_conf_t *clcf;
|
|
|
1748
|
|
|
1749 c = r->connection;
|
|
|
1750 rev = c->read;
|
|
|
1751
|
|
|
1752 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "set http keepalive handler");
|
|
|
1753
|
|
32
|
1754 c->log->action = "closing request";
|
|
0
|
1755
|
|
|
1756 hc = r->http_connection;
|
|
|
1757 b = r->header_in;
|
|
|
1758
|
|
|
1759 if (b->pos < b->last) {
|
|
|
1760
|
|
|
1761 /* the pipelined request */
|
|
|
1762
|
|
|
1763 if (b != c->buffer) {
|
|
|
1764
|
|
4
|
1765 /*
|
|
|
1766 * If the large header buffers were allocated while the previous
|
|
|
1767 * request processing then we do not use c->buffer for
|
|
|
1768 * the pipelined request (see ngx_http_init_request()).
|
|
126
|
1769 *
|
|
4
|
1770 * Now we would move the large header buffers to the free list.
|
|
|
1771 */
|
|
0
|
1772
|
|
|
1773 cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
|
|
|
1774
|
|
|
1775 if (hc->free == NULL) {
|
|
|
1776 hc->free = ngx_palloc(c->pool,
|
|
|
1777 cscf->large_client_header_buffers.num * sizeof(ngx_buf_t *));
|
|
|
1778
|
|
|
1779 if (hc->free == NULL) {
|
|
26
|
1780 ngx_http_close_request(r, 0);
|
|
0
|
1781 return;
|
|
|
1782 }
|
|
|
1783 }
|
|
|
1784
|
|
|
1785 for (i = 0; i < hc->nbusy - 1; i++) {
|
|
|
1786 f = hc->busy[i];
|
|
|
1787 hc->free[hc->nfree++] = f;
|
|
|
1788 f->pos = f->start;
|
|
|
1789 f->last = f->start;
|
|
|
1790 }
|
|
|
1791
|
|
|
1792 hc->busy[0] = b;
|
|
|
1793 hc->nbusy = 1;
|
|
|
1794 }
|
|
|
1795 }
|
|
|
1796
|
|
26
|
1797 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
1798
|
|
118
|
1799 ngx_http_request_done(r, 0);
|
|
|
1800
|
|
0
|
1801 c->data = hc;
|
|
|
1802
|
|
|
1803 ngx_add_timer(rev, clcf->keepalive_timeout);
|
|
|
1804
|
|
58
|
1805 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) {
|
|
0
|
1806 ngx_http_close_connection(c);
|
|
|
1807 return;
|
|
|
1808 }
|
|
|
1809
|
|
|
1810 wev = c->write;
|
|
58
|
1811 wev->handler = ngx_http_empty_handler;
|
|
0
|
1812
|
|
|
1813 if (b->pos < b->last) {
|
|
|
1814
|
|
|
1815 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "pipelined request");
|
|
|
1816
|
|
116
|
1817 #if (NGX_STAT_STUB)
|
|
|
1818 ngx_atomic_fetch_add(ngx_stat_reading, 1);
|
|
|
1819 #endif
|
|
|
1820
|
|
0
|
1821 hc->pipeline = 1;
|
|
32
|
1822 c->log->action = "reading client pipelined request line";
|
|
116
|
1823
|
|
0
|
1824 ngx_http_init_request(rev);
|
|
|
1825 return;
|
|
|
1826 }
|
|
|
1827
|
|
|
1828 hc->pipeline = 0;
|
|
|
1829
|
|
4
|
1830 /*
|
|
|
1831 * To keep a memory footprint as small as possible for an idle
|
|
|
1832 * keepalive connection we try to free the ngx_http_request_t and
|
|
|
1833 * c->buffer's memory if they were allocated outside the c->pool.
|
|
|
1834 * The large header buffers are always allocated outside the c->pool and
|
|
|
1835 * are freed too.
|
|
|
1836 */
|
|
|
1837
|
|
0
|
1838 if (ngx_pfree(c->pool, r) == NGX_OK) {
|
|
|
1839 hc->request = NULL;
|
|
|
1840 }
|
|
|
1841
|
|
|
1842 b = c->buffer;
|
|
|
1843
|
|
|
1844 if (ngx_pfree(c->pool, b->start) == NGX_OK) {
|
|
4
|
1845
|
|
|
1846 /*
|
|
|
1847 * the special note for ngx_http_keepalive_handler() that
|
|
|
1848 * c->buffer's memory was freed
|
|
|
1849 */
|
|
|
1850
|
|
0
|
1851 b->pos = NULL;
|
|
|
1852
|
|
|
1853 } else {
|
|
|
1854 b->pos = b->start;
|
|
|
1855 b->last = b->start;
|
|
|
1856 }
|
|
|
1857
|
|
10
|
1858 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, c->log, 0, "hc free: %p %d",
|
|
0
|
1859 hc->free, hc->nfree);
|
|
|
1860
|
|
|
1861 if (hc->free) {
|
|
|
1862 for (i = 0; i < hc->nfree; i++) {
|
|
|
1863 ngx_pfree(c->pool, hc->free[i]);
|
|
|
1864 hc->free[i] = NULL;
|
|
|
1865 }
|
|
|
1866
|
|
|
1867 hc->nfree = 0;
|
|
|
1868 }
|
|
|
1869
|
|
10
|
1870 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, c->log, 0, "hc busy: %p %d",
|
|
0
|
1871 hc->busy, hc->nbusy);
|
|
|
1872
|
|
|
1873 if (hc->busy) {
|
|
|
1874 for (i = 0; i < hc->nbusy; i++) {
|
|
|
1875 ngx_pfree(c->pool, hc->busy[i]);
|
|
|
1876 hc->busy[i] = NULL;
|
|
|
1877 }
|
|
|
1878
|
|
|
1879 hc->nbusy = 0;
|
|
|
1880 }
|
|
|
1881
|
|
58
|
1882 rev->handler = ngx_http_keepalive_handler;
|
|
0
|
1883
|
|
132
|
1884 if (wev->active && (ngx_event_flags & NGX_USE_LEVEL_EVENT)) {
|
|
|
1885 if (ngx_del_event(wev, NGX_WRITE_EVENT, 0) == NGX_ERROR) {
|
|
|
1886 ngx_http_close_connection(c);
|
|
|
1887 return;
|
|
0
|
1888 }
|
|
|
1889 }
|
|
|
1890
|
|
32
|
1891 c->log->action = "keepalive";
|
|
0
|
1892
|
|
|
1893 if (c->tcp_nopush == NGX_TCP_NOPUSH_SET) {
|
|
50
|
1894 if (ngx_tcp_push(c->fd) == -1) {
|
|
0
|
1895 ngx_connection_error(c, ngx_socket_errno, ngx_tcp_push_n " failed");
|
|
|
1896 ngx_http_close_connection(c);
|
|
|
1897 return;
|
|
|
1898 }
|
|
2
|
1899
|
|
0
|
1900 c->tcp_nopush = NGX_TCP_NOPUSH_UNSET;
|
|
22
|
1901 tcp_nodelay = ngx_tcp_nodelay_and_tcp_nopush ? 1 : 0;
|
|
2
|
1902
|
|
|
1903 } else {
|
|
22
|
1904 tcp_nodelay = 1;
|
|
|
1905 }
|
|
|
1906
|
|
32
|
1907 if (tcp_nodelay
|
|
|
1908 && clcf->tcp_nodelay
|
|
|
1909 && c->tcp_nodelay == NGX_TCP_NODELAY_UNSET)
|
|
|
1910 {
|
|
22
|
1911 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "tcp_nodelay");
|
|
|
1912
|
|
|
1913 if (setsockopt(c->fd, IPPROTO_TCP, TCP_NODELAY,
|
|
184
|
1914 (const void *) &tcp_nodelay, sizeof(int))
|
|
|
1915 == -1)
|
|
22
|
1916 {
|
|
|
1917 ngx_connection_error(c, ngx_socket_errno,
|
|
|
1918 "setsockopt(TCP_NODELAY) failed");
|
|
|
1919 ngx_http_close_connection(c);
|
|
|
1920 return;
|
|
2
|
1921 }
|
|
22
|
1922
|
|
32
|
1923 c->tcp_nodelay = NGX_TCP_NODELAY_SET;
|
|
0
|
1924 }
|
|
|
1925
|
|
|
1926 #if 0
|
|
4
|
1927 /* if ngx_http_request_t was freed then we need some other place */
|
|
0
|
1928 r->http_state = NGX_HTTP_KEEPALIVE_STATE;
|
|
|
1929 #endif
|
|
|
1930
|
|
|
1931 if (rev->ready) {
|
|
|
1932 ngx_http_keepalive_handler(rev);
|
|
|
1933 }
|
|
|
1934 }
|
|
|
1935
|
|
|
1936
|
|
50
|
1937 static void
|
|
|
1938 ngx_http_keepalive_handler(ngx_event_t *rev)
|
|
0
|
1939 {
|
|
50
|
1940 size_t size;
|
|
|
1941 ssize_t n;
|
|
|
1942 ngx_buf_t *b;
|
|
|
1943 ngx_connection_t *c;
|
|
0
|
1944
|
|
|
1945 c = rev->data;
|
|
|
1946
|
|
|
1947 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "http keepalive handler");
|
|
|
1948
|
|
|
1949 if (rev->timedout) {
|
|
|
1950 ngx_http_close_connection(c);
|
|
|
1951 return;
|
|
|
1952 }
|
|
|
1953
|
|
18
|
1954 #if (NGX_HAVE_KQUEUE)
|
|
0
|
1955
|
|
4
|
1956 if (ngx_event_flags & NGX_USE_KQUEUE_EVENT) {
|
|
136
|
1957 if (rev->pending_eof) {
|
|
32
|
1958 c->log->handler = NULL;
|
|
0
|
1959 ngx_log_error(NGX_LOG_INFO, c->log, rev->kq_errno,
|
|
10
|
1960 "kevent() reported that client %V closed "
|
|
32
|
1961 "keepalive connection", &c->addr_text);
|
|
22
|
1962 #if (NGX_HTTP_SSL)
|
|
|
1963 if (c->ssl) {
|
|
96
|
1964 c->ssl->no_send_shutdown = 1;
|
|
22
|
1965 }
|
|
|
1966 #endif
|
|
0
|
1967 ngx_http_close_connection(c);
|
|
|
1968 return;
|
|
|
1969 }
|
|
|
1970 }
|
|
|
1971
|
|
|
1972 #endif
|
|
|
1973
|
|
|
1974 b = c->buffer;
|
|
|
1975 size = b->end - b->start;
|
|
|
1976
|
|
|
1977 if (b->pos == NULL) {
|
|
4
|
1978
|
|
|
1979 /*
|
|
|
1980 * The c->buffer's memory was freed by ngx_http_set_keepalive().
|
|
|
1981 * However, the c->buffer->start and c->buffer->end were not changed
|
|
|
1982 * to keep the buffer size.
|
|
|
1983 */
|
|
|
1984
|
|
50
|
1985 b->pos = ngx_palloc(c->pool, size);
|
|
|
1986 if (b->pos == NULL) {
|
|
0
|
1987 ngx_http_close_connection(c);
|
|
|
1988 return;
|
|
|
1989 }
|
|
|
1990
|
|
|
1991 b->start = b->pos;
|
|
|
1992 b->last = b->pos;
|
|
|
1993 b->end = b->pos + size;
|
|
|
1994 }
|
|
|
1995
|
|
|
1996 /*
|
|
|
1997 * MSIE closes a keepalive connection with RST flag
|
|
|
1998 * so we ignore ECONNRESET here.
|
|
|
1999 */
|
|
|
2000
|
|
|
2001 c->log_error = NGX_ERROR_IGNORE_ECONNRESET;
|
|
|
2002 ngx_set_socket_errno(0);
|
|
|
2003
|
|
|
2004 n = c->recv(c, b->last, size);
|
|
|
2005 c->log_error = NGX_ERROR_INFO;
|
|
|
2006
|
|
|
2007 if (n == NGX_AGAIN) {
|
|
58
|
2008 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) {
|
|
24
|
2009 ngx_http_close_connection(c);
|
|
|
2010 }
|
|
|
2011
|
|
0
|
2012 return;
|
|
|
2013 }
|
|
|
2014
|
|
|
2015 if (n == NGX_ERROR) {
|
|
|
2016 ngx_http_close_connection(c);
|
|
|
2017 return;
|
|
|
2018 }
|
|
|
2019
|
|
32
|
2020 c->log->handler = NULL;
|
|
0
|
2021
|
|
|
2022 if (n == 0) {
|
|
|
2023 ngx_log_error(NGX_LOG_INFO, c->log, ngx_socket_errno,
|
|
32
|
2024 "client %V closed keepalive connection", &c->addr_text);
|
|
0
|
2025 ngx_http_close_connection(c);
|
|
|
2026 return;
|
|
|
2027 }
|
|
|
2028
|
|
|
2029 b->last += n;
|
|
32
|
2030
|
|
116
|
2031 #if (NGX_STAT_STUB)
|
|
|
2032 ngx_atomic_fetch_add(ngx_stat_reading, 1);
|
|
|
2033 #endif
|
|
|
2034
|
|
32
|
2035 c->log->handler = ngx_http_log_error;
|
|
|
2036 c->log->action = "reading client request line";
|
|
0
|
2037
|
|
|
2038 ngx_http_init_request(rev);
|
|
|
2039 }
|
|
|
2040
|
|
|
2041
|
|
50
|
2042 static void
|
|
|
2043 ngx_http_set_lingering_close(ngx_http_request_t *r)
|
|
126
|
2044 {
|
|
0
|
2045 ngx_event_t *rev, *wev;
|
|
|
2046 ngx_connection_t *c;
|
|
|
2047 ngx_http_core_loc_conf_t *clcf;
|
|
|
2048
|
|
|
2049 c = r->connection;
|
|
|
2050
|
|
|
2051 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
2052
|
|
|
2053 rev = c->read;
|
|
58
|
2054 rev->handler = ngx_http_lingering_close_handler;
|
|
0
|
2055
|
|
106
|
2056 r->lingering_time = ngx_time() + (time_t) (clcf->lingering_time / 1000);
|
|
0
|
2057 ngx_add_timer(rev, clcf->lingering_timeout);
|
|
|
2058
|
|
58
|
2059 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) {
|
|
0
|
2060 ngx_http_close_request(r, 0);
|
|
|
2061 return;
|
|
|
2062 }
|
|
|
2063
|
|
|
2064 wev = c->write;
|
|
58
|
2065 wev->handler = ngx_http_empty_handler;
|
|
0
|
2066
|
|
132
|
2067 if (wev->active && (ngx_event_flags & NGX_USE_LEVEL_EVENT)) {
|
|
|
2068 if (ngx_del_event(wev, NGX_WRITE_EVENT, 0) == NGX_ERROR) {
|
|
|
2069 ngx_http_close_request(r, 0);
|
|
|
2070 return;
|
|
0
|
2071 }
|
|
|
2072 }
|
|
|
2073
|
|
|
2074 if (ngx_shutdown_socket(c->fd, NGX_WRITE_SHUTDOWN) == -1) {
|
|
|
2075 ngx_connection_error(c, ngx_socket_errno,
|
|
|
2076 ngx_shutdown_socket_n " failed");
|
|
|
2077 ngx_http_close_request(r, 0);
|
|
|
2078 return;
|
|
|
2079 }
|
|
|
2080
|
|
|
2081 if (rev->ready) {
|
|
|
2082 ngx_http_lingering_close_handler(rev);
|
|
|
2083 }
|
|
|
2084 }
|
|
|
2085
|
|
|
2086
|
|
50
|
2087 static void
|
|
|
2088 ngx_http_lingering_close_handler(ngx_event_t *rev)
|
|
0
|
2089 {
|
|
|
2090 ssize_t n;
|
|
|
2091 ngx_msec_t timer;
|
|
|
2092 ngx_connection_t *c;
|
|
|
2093 ngx_http_request_t *r;
|
|
|
2094 ngx_http_core_loc_conf_t *clcf;
|
|
|
2095 u_char buffer[NGX_HTTP_LINGERING_BUFFER_SIZE];
|
|
|
2096
|
|
|
2097 c = rev->data;
|
|
|
2098 r = c->data;
|
|
|
2099
|
|
|
2100 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
|
2101 "http lingering close handler");
|
|
|
2102
|
|
|
2103 if (rev->timedout) {
|
|
126
|
2104 c->timedout = 1;
|
|
0
|
2105 ngx_http_close_request(r, 0);
|
|
|
2106 return;
|
|
|
2107 }
|
|
|
2108
|
|
|
2109 timer = r->lingering_time - ngx_time();
|
|
|
2110 if (timer <= 0) {
|
|
|
2111 ngx_http_close_request(r, 0);
|
|
|
2112 return;
|
|
|
2113 }
|
|
|
2114
|
|
|
2115 do {
|
|
|
2116 n = c->recv(c, buffer, NGX_HTTP_LINGERING_BUFFER_SIZE);
|
|
|
2117
|
|
|
2118 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0, "lingering read: %d", n);
|
|
|
2119
|
|
|
2120 if (n == NGX_ERROR || n == 0) {
|
|
|
2121 ngx_http_close_request(r, 0);
|
|
|
2122 return;
|
|
|
2123 }
|
|
|
2124
|
|
|
2125 } while (rev->ready);
|
|
|
2126
|
|
58
|
2127 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) {
|
|
26
|
2128 ngx_http_close_request(r, 0);
|
|
24
|
2129 return;
|
|
|
2130 }
|
|
|
2131
|
|
0
|
2132 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
2133
|
|
|
2134 timer *= 1000;
|
|
|
2135
|
|
|
2136 if (timer > clcf->lingering_timeout) {
|
|
|
2137 timer = clcf->lingering_timeout;
|
|
|
2138 }
|
|
|
2139
|
|
|
2140 ngx_add_timer(rev, timer);
|
|
|
2141 }
|
|
|
2142
|
|
|
2143
|
|
50
|
2144 void
|
|
|
2145 ngx_http_empty_handler(ngx_event_t *wev)
|
|
0
|
2146 {
|
|
|
2147 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, wev->log, 0, "http empty handler");
|
|
|
2148
|
|
|
2149 return;
|
|
|
2150 }
|
|
|
2151
|
|
|
2152
|
|
58
|
2153 void
|
|
|
2154 ngx_http_request_empty_handler(ngx_http_request_t *r)
|
|
|
2155 {
|
|
|
2156 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
132
|
2157 "http request empty handler");
|
|
58
|
2158
|
|
|
2159 return;
|
|
|
2160 }
|
|
|
2161
|
|
|
2162
|
|
50
|
2163 ngx_int_t
|
|
130
|
2164 ngx_http_send_special(ngx_http_request_t *r, ngx_uint_t flags)
|
|
0
|
2165 {
|
|
|
2166 ngx_buf_t *b;
|
|
|
2167 ngx_chain_t out;
|
|
|
2168
|
|
50
|
2169 b = ngx_calloc_buf(r->pool);
|
|
|
2170 if (b == NULL) {
|
|
0
|
2171 return NGX_ERROR;
|
|
|
2172 }
|
|
|
2173
|
|
130
|
2174 if (flags & NGX_HTTP_LAST) {
|
|
|
2175 b->last_buf = 1;
|
|
|
2176 }
|
|
|
2177
|
|
|
2178 if (flags & NGX_HTTP_FLUSH) {
|
|
|
2179 b->flush = 1;
|
|
|
2180 }
|
|
|
2181
|
|
0
|
2182 out.buf = b;
|
|
|
2183 out.next = NULL;
|
|
|
2184
|
|
|
2185 return ngx_http_output_filter(r, &out);
|
|
|
2186 }
|
|
|
2187
|
|
|
2188
|
|
162
|
2189 static ngx_int_t
|
|
|
2190 ngx_http_post_action(ngx_http_request_t *r)
|
|
|
2191 {
|
|
|
2192 ngx_http_core_loc_conf_t *clcf;
|
|
|
2193
|
|
|
2194 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
2195
|
|
|
2196 if (clcf->post_action.data == NULL) {
|
|
|
2197 return NGX_DECLINED;
|
|
|
2198 }
|
|
|
2199
|
|
172
|
2200 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
2201 "post action: \"%V\"", &clcf->post_action);
|
|
|
2202
|
|
162
|
2203 r->http_version = NGX_HTTP_VERSION_9;
|
|
|
2204 r->header_only = 1;
|
|
178
|
2205 r->post_action = 1;
|
|
162
|
2206
|
|
|
2207 ngx_http_internal_redirect(r, &clcf->post_action, NULL);
|
|
|
2208
|
|
|
2209 return NGX_OK;
|
|
|
2210 }
|
|
|
2211
|
|
|
2212
|
|
|
2213 static void
|
|
58
|
2214 ngx_http_close_request(ngx_http_request_t *r, ngx_int_t error)
|
|
0
|
2215 {
|
|
188
|
2216 ngx_connection_t *c;
|
|
118
|
2217
|
|
|
2218 c = r->connection;
|
|
188
|
2219
|
|
|
2220 ngx_http_request_done(r->main, error);
|
|
118
|
2221 ngx_http_close_connection(c);
|
|
|
2222 }
|
|
|
2223
|
|
|
2224
|
|
162
|
2225 static void
|
|
118
|
2226 ngx_http_request_done(ngx_http_request_t *r, ngx_int_t error)
|
|
|
2227 {
|
|
|
2228 ngx_log_t *log;
|
|
130
|
2229 ngx_uint_t i, n;
|
|
118
|
2230 struct linger linger;
|
|
188
|
2231 ngx_http_cleanup_t *cln;
|
|
118
|
2232 ngx_http_log_ctx_t *ctx;
|
|
130
|
2233 ngx_http_handler_pt *log_handler;
|
|
118
|
2234 ngx_http_core_loc_conf_t *clcf;
|
|
|
2235 ngx_http_core_main_conf_t *cmcf;
|
|
0
|
2236
|
|
|
2237 log = r->connection->log;
|
|
|
2238
|
|
|
2239 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, log, 0, "http close request");
|
|
|
2240
|
|
|
2241 if (r->pool == NULL) {
|
|
80
|
2242 ngx_log_error(NGX_LOG_ALERT, log, 0, "http request already closed");
|
|
0
|
2243 return;
|
|
|
2244 }
|
|
|
2245
|
|
188
|
2246 for (cln = r->cleanup; cln; cln = cln->next) {
|
|
|
2247 if (cln->handler) {
|
|
|
2248 cln->handler(cln->data);
|
|
|
2249 }
|
|
|
2250 }
|
|
|
2251
|
|
0
|
2252 #if (NGX_STAT_STUB)
|
|
116
|
2253
|
|
0
|
2254 if (r->stat_reading) {
|
|
110
|
2255 ngx_atomic_fetch_add(ngx_stat_reading, -1);
|
|
0
|
2256 }
|
|
|
2257
|
|
|
2258 if (r->stat_writing) {
|
|
110
|
2259 ngx_atomic_fetch_add(ngx_stat_writing, -1);
|
|
0
|
2260 }
|
|
116
|
2261
|
|
0
|
2262 #endif
|
|
|
2263
|
|
|
2264 if (error && r->headers_out.status == 0) {
|
|
|
2265 r->headers_out.status = error;
|
|
|
2266 }
|
|
|
2267
|
|
118
|
2268 cmcf = ngx_http_get_module_main_conf(r, ngx_http_core_module);
|
|
|
2269
|
|
130
|
2270 log_handler = cmcf->phases[NGX_HTTP_LOG_PHASE].handlers.elts;
|
|
|
2271 n = cmcf->phases[NGX_HTTP_LOG_PHASE].handlers.nelts;
|
|
|
2272 for (i = 0; i < n; i++) {
|
|
|
2273 log_handler[i](r);
|
|
118
|
2274 }
|
|
0
|
2275
|
|
|
2276 if (r->connection->timedout) {
|
|
|
2277 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
2278
|
|
|
2279 if (clcf->reset_timedout_connection) {
|
|
58
|
2280 linger.l_onoff = 1;
|
|
|
2281 linger.l_linger = 0;
|
|
0
|
2282
|
|
|
2283 if (setsockopt(r->connection->fd, SOL_SOCKET, SO_LINGER,
|
|
58
|
2284 (const void *) &linger, sizeof(struct linger)) == -1)
|
|
0
|
2285 {
|
|
|
2286 ngx_log_error(NGX_LOG_ALERT, log, ngx_socket_errno,
|
|
|
2287 "setsockopt(SO_LINGER) failed");
|
|
|
2288 }
|
|
|
2289 }
|
|
|
2290 }
|
|
|
2291
|
|
58
|
2292 /* the various request strings were allocated from r->pool */
|
|
0
|
2293 ctx = log->data;
|
|
10
|
2294 ctx->request = NULL;
|
|
0
|
2295
|
|
|
2296 r->request_line.len = 0;
|
|
|
2297
|
|
132
|
2298 r->connection->destroyed = 1;
|
|
|
2299
|
|
0
|
2300 ngx_destroy_pool(r->pool);
|
|
|
2301 }
|
|
|
2302
|
|
|
2303
|
|
80
|
2304 static void
|
|
50
|
2305 ngx_http_close_connection(ngx_connection_t *c)
|
|
0
|
2306 {
|
|
28
|
2307 ngx_pool_t *pool;
|
|
|
2308
|
|
0
|
2309 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
|
2310 "close http connection: %d", c->fd);
|
|
|
2311
|
|
88
|
2312 #if (NGX_HTTP_SSL)
|
|
2
|
2313
|
|
|
2314 if (c->ssl) {
|
|
|
2315 if (ngx_ssl_shutdown(c) == NGX_AGAIN) {
|
|
126
|
2316 c->ssl->handler = ngx_http_close_connection;
|
|
2
|
2317 return;
|
|
|
2318 }
|
|
|
2319 }
|
|
|
2320
|
|
|
2321 #endif
|
|
|
2322
|
|
0
|
2323 #if (NGX_STAT_STUB)
|
|
110
|
2324 ngx_atomic_fetch_add(ngx_stat_active, -1);
|
|
0
|
2325 #endif
|
|
|
2326
|
|
132
|
2327 c->destroyed = 1;
|
|
|
2328
|
|
28
|
2329 pool = c->pool;
|
|
|
2330
|
|
0
|
2331 ngx_close_connection(c);
|
|
28
|
2332
|
|
50
|
2333 ngx_destroy_pool(pool);
|
|
0
|
2334 }
|
|
|
2335
|
|
|
2336
|
|
50
|
2337 static u_char *
|
|
|
2338 ngx_http_log_error(ngx_log_t *log, u_char *buf, size_t len)
|
|
0
|
2339 {
|
|
32
|
2340 u_char *p;
|
|
54
|
2341 ngx_http_request_t *r;
|
|
32
|
2342 ngx_http_log_ctx_t *ctx;
|
|
10
|
2343
|
|
32
|
2344 if (log->action) {
|
|
58
|
2345 p = ngx_snprintf(buf, len, " while %s", log->action);
|
|
10
|
2346 len -= p - buf;
|
|
54
|
2347 buf = p;
|
|
10
|
2348 }
|
|
|
2349
|
|
58
|
2350 ctx = log->data;
|
|
|
2351
|
|
54
|
2352 p = ngx_snprintf(buf, len, ", client: %V", ctx->client);
|
|
58
|
2353 len -= p - buf;
|
|
54
|
2354
|
|
|
2355 r = ctx->request;
|
|
|
2356
|
|
58
|
2357 if (r) {
|
|
|
2358 return r->log_handler(r, p, len);
|
|
0
|
2359 }
|
|
10
|
2360
|
|
58
|
2361 return p;
|
|
|
2362 }
|
|
|
2363
|
|
|
2364
|
|
|
2365 static u_char *
|
|
|
2366 ngx_http_log_error_handler(ngx_http_request_t *r, u_char *buf, size_t len)
|
|
|
2367 {
|
|
|
2368 u_char *p;
|
|
54
|
2369
|
|
|
2370 if (r->server_name.data) {
|
|
|
2371 p = ngx_snprintf(buf, len, ", server: %V", &r->server_name);
|
|
52
|
2372 len -= p - buf;
|
|
54
|
2373 buf = p;
|
|
52
|
2374 }
|
|
|
2375
|
|
54
|
2376 if (r->unparsed_uri.data) {
|
|
|
2377 p = ngx_snprintf(buf, len, ", URL: \"%V\"", &r->unparsed_uri);
|
|
|
2378 len -= p - buf;
|
|
|
2379 buf = p;
|
|
|
2380
|
|
|
2381 } else {
|
|
|
2382 if (r->request_line.data == NULL && r->request_start) {
|
|
|
2383 for (p = r->request_start; p < r->header_in->last; p++) {
|
|
|
2384 if (*p == CR || *p == LF) {
|
|
|
2385 break;
|
|
|
2386 }
|
|
|
2387 }
|
|
|
2388
|
|
|
2389 r->request_line.len = p - r->request_start;
|
|
|
2390 r->request_line.data = r->request_start;
|
|
|
2391 }
|
|
|
2392
|
|
|
2393 if (r->request_line.len) {
|
|
|
2394 p = ngx_snprintf(buf, len, ", request: \"%V\"", &r->request_line);
|
|
|
2395 len -= p - buf;
|
|
|
2396 buf = p;
|
|
|
2397 }
|
|
10
|
2398 }
|
|
|
2399
|
|
54
|
2400 return ngx_http_log_error_info(r, buf, len);
|
|
0
|
2401 }
|
|
54
|
2402
|
|
|
2403
|
|
|
2404 u_char *
|
|
|
2405 ngx_http_log_error_info(ngx_http_request_t *r, u_char *buf, size_t len)
|
|
|
2406 {
|
|
|
2407 u_char *p;
|
|
|
2408
|
|
|
2409 if (r->headers_in.host) {
|
|
|
2410 p = ngx_snprintf(buf, len, ", host: \"%V\"",
|
|
|
2411 &r->headers_in.host->value);
|
|
|
2412 len -= p - buf;
|
|
|
2413 buf = p;
|
|
|
2414 }
|
|
|
2415
|
|
|
2416 if (r->headers_in.referer) {
|
|
|
2417 p = ngx_snprintf(buf, len, ", referrer: \"%V\"",
|
|
|
2418 &r->headers_in.referer->value);
|
|
|
2419 buf = p;
|
|
|
2420 }
|
|
|
2421
|
|
|
2422 return buf;
|
|
|
2423 }
|
