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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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214
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46 static u_char *ngx_http_log_error_handler(ngx_http_request_t *r,
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47 ngx_http_request_t *sr, u_char *buf, 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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230
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143
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144 { ngx_string("Date"), offsetof(ngx_http_headers_in_t, date),
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145 ngx_http_process_header_line },
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186
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146 #endif
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147
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58
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148 { ngx_string("Cookie"), 0, ngx_http_process_cookie },
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149
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150 { ngx_null_string, 0, NULL }
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0
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151 };
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152
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153
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50
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154 void
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155 ngx_http_init_connection(ngx_connection_t *c)
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0
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156 {
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157 ngx_event_t *rev;
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158 ngx_http_log_ctx_t *ctx;
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159
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50
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160 ctx = ngx_palloc(c->pool, sizeof(ngx_http_log_ctx_t));
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161 if (ctx == NULL) {
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0
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162 ngx_http_close_connection(c);
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163 return;
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164 }
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165
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10
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166 ctx->client = &c->addr_text;
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167 ctx->request = NULL;
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214
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168 ctx->current_request = NULL;
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32
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169
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170 c->log->connection = c->number;
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171 c->log->handler = ngx_http_log_error;
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0
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172 c->log->data = ctx;
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32
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173 c->log->action = "reading client request line";
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174
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0
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175 c->log_error = NGX_ERROR_INFO;
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176
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177 rev = c->read;
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58
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178 rev->handler = ngx_http_init_request;
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118
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179 c->write->handler = ngx_http_empty_handler;
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0
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180
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116
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181 #if (NGX_STAT_STUB)
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182 ngx_atomic_fetch_add(ngx_stat_reading, 1);
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183 #endif
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184
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0
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185 if (rev->ready) {
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186 /* the deferred accept(), rtsig, aio, iocp */
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187
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160
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188 if (ngx_use_accept_mutex) {
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112
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189 ngx_post_event(rev, &ngx_posted_events);
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0
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190 return;
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191 }
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192
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193 ngx_http_init_request(rev);
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194 return;
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195 }
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196
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197 ngx_add_timer(rev, c->listening->post_accept_timeout);
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198
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199 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) {
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116
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200 #if (NGX_STAT_STUB)
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201 ngx_atomic_fetch_add(ngx_stat_reading, -1);
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202 #endif
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0
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203 ngx_http_close_connection(c);
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204 return;
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205 }
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206 }
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207
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208
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190
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209 static void
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210 ngx_http_init_request(ngx_event_t *rev)
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0
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211 {
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190
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212 socklen_t len;
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122
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213 ngx_uint_t i;
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214 struct sockaddr_in sin;
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215 ngx_connection_t *c;
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216 ngx_http_request_t *r;
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142
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217 ngx_http_in_port_t *hip;
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218 ngx_http_in_addr_t *hia;
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122
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219 ngx_http_log_ctx_t *ctx;
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220 ngx_http_connection_t *hc;
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221 ngx_http_core_srv_conf_t *cscf;
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222 ngx_http_core_loc_conf_t *clcf;
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223 ngx_http_core_main_conf_t *cmcf;
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0
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224 #if (NGX_HTTP_SSL)
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122
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225 ngx_http_ssl_srv_conf_t *sscf;
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0
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226 #endif
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227
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116
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228 #if (NGX_STAT_STUB)
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229 ngx_atomic_fetch_add(ngx_stat_reading, -1);
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230 #endif
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231
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0
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232 c = rev->data;
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233
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234 if (rev->timedout) {
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235 ngx_log_error(NGX_LOG_INFO, c->log, NGX_ETIMEDOUT, "client timed out");
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236
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237 ngx_http_close_connection(c);
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238 return;
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239 }
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240
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241 hc = c->data;
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242
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116
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243 if (hc == NULL) {
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50
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244 hc = ngx_pcalloc(c->pool, sizeof(ngx_http_connection_t));
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245 if (hc == NULL) {
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0
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246 ngx_http_close_connection(c);
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247 return;
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248 }
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249 }
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250
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251 r = hc->request;
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252
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253 if (r) {
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254 ngx_memzero(r, sizeof(ngx_http_request_t));
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255
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256 r->pipeline = hc->pipeline;
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257
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258 if (hc->nbusy) {
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259 r->header_in = hc->busy[0];
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260 }
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261
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262 } else {
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50
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263 r = ngx_pcalloc(c->pool, sizeof(ngx_http_request_t));
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264 if (r == NULL) {
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0
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265 ngx_http_close_connection(c);
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266 return;
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267 }
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268
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269 hc->request = r;
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270 }
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271
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272 c->data = r;
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273 r->http_connection = hc;
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274
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275 c->sent = 0;
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276 r->signature = NGX_HTTP_MODULE;
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277
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278 /* find the server configuration for the address:port */
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279
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280 /* AF_INET only */
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281
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190
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282 hip = c->listening->servers;
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142
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283 hia = hip->addrs;
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284
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285 r->port = hip->port;
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286 r->port_text = &hip->port_text;
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0
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287
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288 i = 0;
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289
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142
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290 if (hip->naddrs > 1) {
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0
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291
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292 /*
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293 * There are several addresses on this port and one of them
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294 * is the "*:port" wildcard so getsockname() is needed to determine
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295 * the server address.
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296 *
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297 * AcceptEx() already gave this address.
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298 */
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299
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10
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300 #if (NGX_WIN32)
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0
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301 if (c->local_sockaddr) {
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302 r->in_addr =
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303 ((struct sockaddr_in *) c->local_sockaddr)->sin_addr.s_addr;
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304
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28
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305 } else
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0
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306 #endif
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28
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307 {
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0
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308 len = sizeof(struct sockaddr_in);
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28
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309 if (getsockname(c->fd, (struct sockaddr *) &sin, &len) == -1) {
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0
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310 ngx_connection_error(c, ngx_socket_errno,
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311 "getsockname() failed");
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312 ngx_http_close_connection(c);
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313 return;
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314 }
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315
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28
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316 r->in_addr = sin.sin_addr.s_addr;
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0
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317 }
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318
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190
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319 /* the last address is "*" */
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0
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320
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142
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321 for ( /* void */ ; i < hip->naddrs - 1; i++) {
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322 if (hia[i].addr == r->in_addr) {
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0
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323 break;
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324 }
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325 }
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326
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327 } else {
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142
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328 r->in_addr = hia[0].addr;
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0
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329 }
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330
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142
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331 r->virtual_names = hia[i].virtual_names;
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0
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332
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333 /* the default server configuration for the address:port */
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142
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334 cscf = hia[i].core_srv_conf;
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0
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335
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336 r->main_conf = cscf->ctx->main_conf;
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337 r->srv_conf = cscf->ctx->srv_conf;
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338 r->loc_conf = cscf->ctx->loc_conf;
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339
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142
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340 r->server_name = cscf->server_name;
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341
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58
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342 rev->handler = ngx_http_process_request_line;
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0
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343
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344 #if (NGX_HTTP_SSL)
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345
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346 sscf = ngx_http_get_module_srv_conf(r, ngx_http_ssl_module);
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347 if (sscf->enable) {
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348
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349 if (c->ssl == NULL) {
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96
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350 if (ngx_ssl_create_connection(&sscf->ssl, c, NGX_SSL_BUFFER)
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56
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351 == NGX_ERROR)
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0
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352 {
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353 ngx_http_close_connection(c);
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354 return;
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355 }
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356
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58
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357 rev->handler = ngx_http_ssl_handshake;
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0
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358 }
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359
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62
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360 r->main_filter_need_in_memory = 1;
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0
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361 }
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362
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363 #endif
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364
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365 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
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366 c->log->file = clcf->err_log->file;
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367 if (!(c->log->log_level & NGX_LOG_DEBUG_CONNECTION)) {
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368 c->log->log_level = clcf->err_log->log_level;
|
|
|
369 }
|
|
|
370
|
|
|
371 if (c->buffer == NULL) {
|
|
|
372 c->buffer = ngx_create_temp_buf(c->pool,
|
|
|
373 cscf->client_header_buffer_size);
|
|
|
374 if (c->buffer == NULL) {
|
|
|
375 ngx_http_close_connection(c);
|
|
|
376 return;
|
|
|
377 }
|
|
|
378 }
|
|
|
379
|
|
|
380 if (r->header_in == NULL) {
|
|
|
381 r->header_in = c->buffer;
|
|
|
382 }
|
|
|
383
|
|
50
|
384 r->pool = ngx_create_pool(cscf->request_pool_size, c->log);
|
|
|
385 if (r->pool == NULL) {
|
|
0
|
386 ngx_http_close_connection(c);
|
|
|
387 return;
|
|
|
388 }
|
|
|
389
|
|
|
390
|
|
|
391 if (ngx_list_init(&r->headers_out.headers, r->pool, 20,
|
|
130
|
392 sizeof(ngx_table_elt_t))
|
|
|
393 == NGX_ERROR)
|
|
0
|
394 {
|
|
|
395 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
396 return;
|
|
|
397 }
|
|
|
398
|
|
|
399 r->ctx = ngx_pcalloc(r->pool, sizeof(void *) * ngx_http_max_module);
|
|
|
400 if (r->ctx == NULL) {
|
|
|
401 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
402 return;
|
|
|
403 }
|
|
|
404
|
|
122
|
405 cmcf = ngx_http_get_module_main_conf(r, ngx_http_core_module);
|
|
|
406
|
|
|
407 r->variables = ngx_pcalloc(r->pool, cmcf->variables.nelts
|
|
|
408 * sizeof(ngx_http_variable_value_t));
|
|
|
409 if (r->variables == NULL) {
|
|
|
410 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
411 return;
|
|
|
412 }
|
|
|
413
|
|
0
|
414 c->single_connection = 1;
|
|
132
|
415 c->destroyed = 0;
|
|
|
416
|
|
0
|
417 r->connection = c;
|
|
|
418
|
|
102
|
419 r->main = r;
|
|
|
420
|
|
46
|
421 r->start_time = ngx_time();
|
|
|
422
|
|
180
|
423 r->method = NGX_HTTP_UNKNOWN;
|
|
|
424
|
|
0
|
425 r->headers_in.content_length_n = -1;
|
|
|
426 r->headers_in.keep_alive_n = -1;
|
|
|
427 r->headers_out.content_length_n = -1;
|
|
|
428 r->headers_out.last_modified_time = -1;
|
|
|
429
|
|
226
|
430 r->uri_changes = NGX_HTTP_MAX_URI_CHANGES + 1;
|
|
|
431 r->subrequests = NGX_HTTP_MAX_SUBREQUESTS + 1;
|
|
|
432
|
|
0
|
433 r->http_state = NGX_HTTP_READING_REQUEST_STATE;
|
|
|
434
|
|
54
|
435 ctx = c->log->data;
|
|
|
436 ctx->request = r;
|
|
214
|
437 ctx->current_request = r;
|
|
58
|
438 r->log_handler = ngx_http_log_error_handler;
|
|
54
|
439
|
|
0
|
440 #if (NGX_STAT_STUB)
|
|
110
|
441 ngx_atomic_fetch_add(ngx_stat_reading, 1);
|
|
26
|
442 r->stat_reading = 1;
|
|
110
|
443 ngx_atomic_fetch_add(ngx_stat_requests, 1);
|
|
0
|
444 #endif
|
|
|
445
|
|
58
|
446 rev->handler(rev);
|
|
0
|
447 }
|
|
|
448
|
|
|
449
|
|
|
450 #if (NGX_HTTP_SSL)
|
|
|
451
|
|
50
|
452 static void
|
|
|
453 ngx_http_ssl_handshake(ngx_event_t *rev)
|
|
0
|
454 {
|
|
10
|
455 u_char buf[1];
|
|
|
456 ssize_t n;
|
|
0
|
457 ngx_int_t rc;
|
|
|
458 ngx_connection_t *c;
|
|
|
459 ngx_http_request_t *r;
|
|
|
460
|
|
|
461 c = rev->data;
|
|
|
462 r = c->data;
|
|
|
463
|
|
|
464 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, rev->log, 0,
|
|
|
465 "http check ssl handshake");
|
|
|
466
|
|
|
467 if (rev->timedout) {
|
|
54
|
468 ngx_log_error(NGX_LOG_INFO, c->log, NGX_ETIMEDOUT, "client timed out");
|
|
|
469 c->timedout = 1;
|
|
|
470 ngx_http_close_request(r, NGX_HTTP_REQUEST_TIME_OUT);
|
|
0
|
471 return;
|
|
|
472 }
|
|
|
473
|
|
132
|
474 n = recv(c->fd, (char *) buf, 1, MSG_PEEK);
|
|
0
|
475
|
|
|
476 if (n == -1 && ngx_socket_errno == NGX_EAGAIN) {
|
|
|
477 return;
|
|
|
478 }
|
|
|
479
|
|
|
480 if (n == 1) {
|
|
|
481 if (buf[0] == 0x80 /* SSLv2 */ || buf[0] == 0x16 /* SSLv3/TLSv1 */) {
|
|
|
482 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, rev->log, 0,
|
|
10
|
483 "https ssl handshake: 0x%02Xd", buf[0]);
|
|
0
|
484
|
|
|
485 rc = ngx_ssl_handshake(c);
|
|
|
486
|
|
96
|
487 if (rc == NGX_AGAIN) {
|
|
|
488 c->ssl->handler = ngx_http_ssl_handshake_handler;
|
|
0
|
489 return;
|
|
|
490 }
|
|
|
491
|
|
96
|
492 ngx_http_ssl_handshake_handler(c);
|
|
|
493
|
|
|
494 return;
|
|
0
|
495
|
|
|
496 } else {
|
|
|
497 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, rev->log, 0,
|
|
|
498 "plain http");
|
|
|
499
|
|
|
500 r->plain_http = 1;
|
|
|
501 }
|
|
|
502 }
|
|
|
503
|
|
58
|
504 rev->handler = ngx_http_process_request_line;
|
|
0
|
505 ngx_http_process_request_line(rev);
|
|
|
506 }
|
|
|
507
|
|
96
|
508
|
|
|
509 static void
|
|
|
510 ngx_http_ssl_handshake_handler(ngx_connection_t *c)
|
|
|
511 {
|
|
|
512 ngx_http_request_t *r;
|
|
|
513
|
|
|
514 if (c->ssl->handshaked) {
|
|
|
515
|
|
|
516 /*
|
|
|
517 * The majority of browsers do not send the "close notify" alert.
|
|
|
518 * Among them are MSIE, old Mozilla, Netscape 4, Konqueror,
|
|
|
519 * and Links. And what is more, MSIE ignores the server's alert.
|
|
|
520 *
|
|
|
521 * Opera and recent Mozilla send the alert.
|
|
|
522 */
|
|
|
523
|
|
|
524 c->ssl->no_wait_shutdown = 1;
|
|
|
525
|
|
|
526 c->read->handler = ngx_http_process_request_line;
|
|
|
527 /* STUB: epoll edge */ c->write->handler = ngx_http_empty_handler;
|
|
|
528
|
|
|
529 ngx_http_process_request_line(c->read);
|
|
|
530
|
|
|
531 return;
|
|
|
532 }
|
|
|
533
|
|
|
534 r = c->data;
|
|
|
535
|
|
|
536 ngx_http_close_request(r, NGX_HTTP_BAD_REQUEST);
|
|
|
537
|
|
|
538 return;
|
|
|
539 }
|
|
|
540
|
|
|
541
|
|
0
|
542 #endif
|
|
|
543
|
|
|
544
|
|
50
|
545 static void
|
|
|
546 ngx_http_process_request_line(ngx_event_t *rev)
|
|
0
|
547 {
|
|
|
548 ssize_t n;
|
|
|
549 ngx_int_t rc, rv;
|
|
|
550 ngx_connection_t *c;
|
|
|
551 ngx_http_request_t *r;
|
|
|
552
|
|
|
553 c = rev->data;
|
|
|
554 r = c->data;
|
|
|
555
|
|
|
556 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, rev->log, 0,
|
|
|
557 "http process request line");
|
|
|
558
|
|
|
559 if (rev->timedout) {
|
|
54
|
560 ngx_log_error(NGX_LOG_INFO, c->log, NGX_ETIMEDOUT, "client timed out");
|
|
|
561 c->timedout = 1;
|
|
|
562 ngx_http_close_request(r, NGX_HTTP_REQUEST_TIME_OUT);
|
|
0
|
563 return;
|
|
|
564 }
|
|
|
565
|
|
|
566 rc = NGX_AGAIN;
|
|
|
567
|
|
|
568 for ( ;; ) {
|
|
|
569
|
|
|
570 if (rc == NGX_AGAIN) {
|
|
|
571 n = ngx_http_read_request_header(r);
|
|
|
572
|
|
|
573 if (n == NGX_AGAIN || n == NGX_ERROR) {
|
|
|
574 return;
|
|
|
575 }
|
|
|
576 }
|
|
|
577
|
|
|
578 rc = ngx_http_parse_request_line(r, r->header_in);
|
|
|
579
|
|
|
580 if (rc == NGX_OK) {
|
|
|
581
|
|
|
582 /* the request line has been parsed successfully */
|
|
|
583
|
|
10
|
584 r->request_line.len = r->request_end - r->request_start;
|
|
|
585 r->request_line.data = r->request_start;
|
|
|
586
|
|
0
|
587
|
|
|
588 if (r->args_start) {
|
|
|
589 r->uri.len = r->args_start - 1 - r->uri_start;
|
|
|
590 } else {
|
|
|
591 r->uri.len = r->uri_end - r->uri_start;
|
|
|
592 }
|
|
|
593
|
|
18
|
594
|
|
2
|
595 if (r->complex_uri || r->quoted_uri) {
|
|
10
|
596
|
|
50
|
597 r->uri.data = ngx_palloc(r->pool, r->uri.len + 1);
|
|
|
598 if (r->uri.data == NULL) {
|
|
10
|
599 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
600 return;
|
|
|
601 }
|
|
|
602
|
|
0
|
603 rc = ngx_http_parse_complex_uri(r);
|
|
|
604
|
|
54
|
605 if (rc == NGX_HTTP_PARSE_INVALID_REQUEST) {
|
|
|
606 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
|
607 "client sent invalid request");
|
|
|
608 ngx_http_finalize_request(r, NGX_HTTP_BAD_REQUEST);
|
|
0
|
609 return;
|
|
|
610 }
|
|
|
611
|
|
|
612 } else {
|
|
10
|
613 r->uri.data = r->uri_start;
|
|
0
|
614 }
|
|
|
615
|
|
18
|
616
|
|
10
|
617 r->unparsed_uri.len = r->uri_end - r->uri_start;
|
|
|
618 r->unparsed_uri.data = r->uri_start;
|
|
|
619
|
|
0
|
620
|
|
58
|
621 r->method_name.len = r->method_end - r->request_start + 1;
|
|
|
622 r->method_name.data = r->request_line.data;
|
|
0
|
623
|
|
10
|
624
|
|
28
|
625 if (r->http_protocol.data) {
|
|
|
626 r->http_protocol.len = r->request_end - r->http_protocol.data;
|
|
|
627 }
|
|
|
628
|
|
|
629
|
|
0
|
630 if (r->uri_ext) {
|
|
|
631 if (r->args_start) {
|
|
|
632 r->exten.len = r->args_start - 1 - r->uri_ext;
|
|
|
633 } else {
|
|
|
634 r->exten.len = r->uri_end - r->uri_ext;
|
|
|
635 }
|
|
|
636
|
|
10
|
637 r->exten.data = r->uri_ext;
|
|
0
|
638 }
|
|
|
639
|
|
10
|
640
|
|
0
|
641 if (r->args_start && r->uri_end > r->args_start) {
|
|
|
642 r->args.len = r->uri_end - r->args_start;
|
|
10
|
643 r->args.data = r->args_start;
|
|
0
|
644 }
|
|
|
645
|
|
10
|
646
|
|
|
647 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
|
648 "http request line: \"%V\"", &r->request_line);
|
|
|
649
|
|
0
|
650 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
10
|
651 "http uri: \"%V\"", &r->uri);
|
|
0
|
652
|
|
|
653 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
10
|
654 "http args: \"%V\"", &r->args);
|
|
0
|
655
|
|
|
656 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
10
|
657 "http exten: \"%V\"", &r->exten);
|
|
|
658
|
|
0
|
659 if (r->http_version < NGX_HTTP_VERSION_10) {
|
|
86
|
660
|
|
|
661 if (rev->timer_set) {
|
|
|
662 ngx_del_timer(rev);
|
|
|
663 }
|
|
|
664
|
|
|
665 #if (NGX_STAT_STUB)
|
|
110
|
666 ngx_atomic_fetch_add(ngx_stat_reading, -1);
|
|
86
|
667 r->stat_reading = 0;
|
|
110
|
668 ngx_atomic_fetch_add(ngx_stat_writing, 1);
|
|
86
|
669 r->stat_writing = 1;
|
|
|
670 #endif
|
|
|
671
|
|
|
672 rev->handler = ngx_http_request_handler;
|
|
|
673 c->write->handler = ngx_http_request_handler;
|
|
58
|
674 r->read_event_handler = ngx_http_block_read;
|
|
86
|
675
|
|
0
|
676 ngx_http_handler(r);
|
|
86
|
677
|
|
0
|
678 return;
|
|
|
679 }
|
|
|
680
|
|
|
681
|
|
|
682 if (ngx_list_init(&r->headers_in.headers, r->pool, 20,
|
|
130
|
683 sizeof(ngx_table_elt_t))
|
|
|
684 == NGX_ERROR)
|
|
0
|
685 {
|
|
|
686 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
687 return;
|
|
|
688 }
|
|
|
689
|
|
|
690
|
|
48
|
691 if (ngx_array_init(&r->headers_in.cookies, r->pool, 2,
|
|
130
|
692 sizeof(ngx_table_elt_t *))
|
|
|
693 == NGX_ERROR)
|
|
0
|
694 {
|
|
|
695 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
696 return;
|
|
|
697 }
|
|
|
698
|
|
32
|
699 c->log->action = "reading client request headers";
|
|
0
|
700
|
|
58
|
701 rev->handler = ngx_http_process_request_headers;
|
|
0
|
702 ngx_http_process_request_headers(rev);
|
|
|
703
|
|
|
704 return;
|
|
54
|
705 }
|
|
|
706
|
|
|
707 if (rc != NGX_AGAIN) {
|
|
0
|
708
|
|
|
709 /* there was error while a request line parsing */
|
|
|
710
|
|
54
|
711 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
|
712 ngx_http_client_errors[rc - NGX_HTTP_CLIENT_ERROR]);
|
|
|
713 ngx_http_finalize_request(r, NGX_HTTP_BAD_REQUEST);
|
|
0
|
714 return;
|
|
|
715 }
|
|
|
716
|
|
|
717 /* NGX_AGAIN: a request line parsing is still incomplete */
|
|
|
718
|
|
|
719 if (r->header_in->pos == r->header_in->end) {
|
|
|
720
|
|
|
721 rv = ngx_http_alloc_large_header_buffer(r, 1);
|
|
|
722
|
|
|
723 if (rv == NGX_ERROR) {
|
|
|
724 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
725 return;
|
|
|
726 }
|
|
|
727
|
|
|
728 if (rv == NGX_DECLINED) {
|
|
54
|
729 r->request_line.len = r->header_in->end - r->request_start;
|
|
|
730 r->request_line.data = r->request_start;
|
|
|
731
|
|
|
732 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
|
733 "client sent too long URI");
|
|
|
734 ngx_http_finalize_request(r, NGX_HTTP_REQUEST_URI_TOO_LARGE);
|
|
0
|
735 return;
|
|
|
736 }
|
|
|
737 }
|
|
|
738 }
|
|
|
739 }
|
|
|
740
|
|
|
741
|
|
50
|
742 static void
|
|
|
743 ngx_http_process_request_headers(ngx_event_t *rev)
|
|
0
|
744 {
|
|
56
|
745 ssize_t n;
|
|
|
746 ngx_int_t rc, rv;
|
|
|
747 ngx_str_t header;
|
|
198
|
748 ngx_uint_t i;
|
|
58
|
749 ngx_table_elt_t *h;
|
|
56
|
750 ngx_connection_t *c;
|
|
|
751 ngx_http_header_t *hh;
|
|
|
752 ngx_http_request_t *r;
|
|
60
|
753 ngx_http_core_srv_conf_t *cscf;
|
|
56
|
754 ngx_http_core_main_conf_t *cmcf;
|
|
0
|
755
|
|
|
756 c = rev->data;
|
|
|
757 r = c->data;
|
|
|
758
|
|
|
759 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, rev->log, 0,
|
|
|
760 "http process request header line");
|
|
|
761
|
|
|
762 if (rev->timedout) {
|
|
54
|
763 ngx_log_error(NGX_LOG_INFO, c->log, NGX_ETIMEDOUT, "client timed out");
|
|
|
764 c->timedout = 1;
|
|
|
765 ngx_http_close_request(r, NGX_HTTP_REQUEST_TIME_OUT);
|
|
0
|
766 return;
|
|
|
767 }
|
|
|
768
|
|
56
|
769 cmcf = ngx_http_get_module_main_conf(r, ngx_http_core_module);
|
|
60
|
770 cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
|
|
56
|
771
|
|
0
|
772 rc = NGX_AGAIN;
|
|
|
773
|
|
|
774 for ( ;; ) {
|
|
|
775
|
|
|
776 if (rc == NGX_AGAIN) {
|
|
|
777
|
|
|
778 if (r->header_in->pos == r->header_in->end) {
|
|
|
779
|
|
|
780 rv = ngx_http_alloc_large_header_buffer(r, 0);
|
|
|
781
|
|
|
782 if (rv == NGX_ERROR) {
|
|
|
783 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
784 return;
|
|
|
785 }
|
|
|
786
|
|
|
787 if (rv == NGX_DECLINED) {
|
|
54
|
788 header.len = r->header_in->end - r->header_name_start;
|
|
|
789 header.data = r->header_name_start;
|
|
80
|
790
|
|
|
791 if (header.len > NGX_MAX_ERROR_STR - 300) {
|
|
|
792 header.len = NGX_MAX_ERROR_STR - 300;
|
|
|
793 header.data[header.len++] = '.';
|
|
|
794 header.data[header.len++] = '.';
|
|
|
795 header.data[header.len++] = '.';
|
|
|
796 }
|
|
|
797
|
|
54
|
798 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
|
799 "client sent too long header line: \"%V\"",
|
|
|
800 &header);
|
|
|
801 ngx_http_close_request(r, NGX_HTTP_BAD_REQUEST);
|
|
0
|
802 return;
|
|
|
803 }
|
|
|
804 }
|
|
|
805
|
|
|
806 n = ngx_http_read_request_header(r);
|
|
|
807
|
|
|
808 if (n == NGX_AGAIN || n == NGX_ERROR) {
|
|
|
809 return;
|
|
|
810 }
|
|
|
811 }
|
|
|
812
|
|
|
813 rc = ngx_http_parse_header_line(r, r->header_in);
|
|
|
814
|
|
|
815 if (rc == NGX_OK) {
|
|
|
816
|
|
60
|
817 if (r->invalid_header && cscf->ignore_invalid_headers) {
|
|
52
|
818
|
|
|
819 /* there was error while a header line parsing */
|
|
|
820
|
|
|
821 header.len = r->header_end - r->header_name_start;
|
|
|
822 header.data = r->header_name_start;
|
|
|
823
|
|
54
|
824 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
|
825 "client sent invalid header line: \"%V\"",
|
|
52
|
826 &header);
|
|
|
827 continue;
|
|
|
828 }
|
|
|
829
|
|
0
|
830 /* a header line has been parsed successfully */
|
|
|
831
|
|
50
|
832 h = ngx_list_push(&r->headers_in.headers);
|
|
|
833 if (h == NULL) {
|
|
0
|
834 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
835 return;
|
|
|
836 }
|
|
|
837
|
|
56
|
838 h->hash = r->header_hash;
|
|
|
839
|
|
0
|
840 h->key.len = r->header_name_end - r->header_name_start;
|
|
|
841 h->key.data = r->header_name_start;
|
|
|
842 h->key.data[h->key.len] = '\0';
|
|
|
843
|
|
|
844 h->value.len = r->header_end - r->header_start;
|
|
|
845 h->value.data = r->header_start;
|
|
|
846 h->value.data[h->value.len] = '\0';
|
|
|
847
|
|
198
|
848 h->lowcase_key = ngx_palloc(r->pool, h->key.len);
|
|
|
849 if (h->lowcase_key == NULL) {
|
|
|
850 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
851 return;
|
|
|
852 }
|
|
|
853
|
|
|
854 if (h->key.len == r->lowcase_index) {
|
|
|
855 ngx_memcpy(h->lowcase_key, r->lowcase_header, h->key.len);
|
|
|
856
|
|
|
857 } else {
|
|
|
858 for (i = 0; i < h->key.len; i++) {
|
|
216
|
859 h->lowcase_key[i] = ngx_tolower(h->key.data[i]);
|
|
0
|
860 }
|
|
|
861 }
|
|
|
862
|
|
198
|
863 hh = ngx_hash_find(&cmcf->headers_in_hash, h->hash,
|
|
|
864 h->lowcase_key, h->key.len);
|
|
|
865
|
|
|
866 if (hh && hh->handler(r, h, hh->offset) != NGX_OK) {
|
|
|
867 return;
|
|
|
868 }
|
|
|
869
|
|
0
|
870 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
10
|
871 "http header: \"%V: %V\"",
|
|
|
872 &h->key, &h->value);
|
|
0
|
873
|
|
|
874 continue;
|
|
54
|
875 }
|
|
|
876
|
|
|
877 if (rc == NGX_HTTP_PARSE_HEADER_DONE) {
|
|
0
|
878
|
|
|
879 /* a whole header has been parsed successfully */
|
|
|
880
|
|
|
881 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
882 "http header done");
|
|
|
883
|
|
24
|
884 r->request_length += r->header_in->pos - r->header_in->start;
|
|
|
885
|
|
0
|
886 r->http_state = NGX_HTTP_PROCESS_REQUEST_STATE;
|
|
|
887
|
|
|
888 rc = ngx_http_process_request_header(r);
|
|
|
889
|
|
|
890 if (rc != NGX_OK) {
|
|
|
891 return;
|
|
|
892 }
|
|
|
893
|
|
|
894 if (rev->timer_set) {
|
|
|
895 ngx_del_timer(rev);
|
|
|
896 }
|
|
|
897
|
|
|
898 #if (NGX_STAT_STUB)
|
|
110
|
899 ngx_atomic_fetch_add(ngx_stat_reading, -1);
|
|
0
|
900 r->stat_reading = 0;
|
|
110
|
901 ngx_atomic_fetch_add(ngx_stat_writing, 1);
|
|
0
|
902 r->stat_writing = 1;
|
|
|
903 #endif
|
|
|
904
|
|
58
|
905 rev->handler = ngx_http_request_handler;
|
|
|
906 c->write->handler = ngx_http_request_handler;
|
|
|
907 r->read_event_handler = ngx_http_block_read;
|
|
|
908
|
|
0
|
909 ngx_http_handler(r);
|
|
86
|
910
|
|
0
|
911 return;
|
|
54
|
912 }
|
|
|
913
|
|
|
914 if (rc == NGX_AGAIN) {
|
|
|
915
|
|
|
916 /* a header line parsing is still not complete */
|
|
|
917
|
|
|
918 continue;
|
|
0
|
919 }
|
|
|
920
|
|
54
|
921 /* rc == NGX_HTTP_PARSE_INVALID_HEADER: "\r" is not followed by "\n" */
|
|
|
922
|
|
|
923 header.len = r->header_end - r->header_name_start;
|
|
|
924 header.data = r->header_name_start;
|
|
|
925 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
|
926 "client sent invalid header line: \"%V\\r...\"",
|
|
|
927 &header);
|
|
|
928 ngx_http_close_request(r, NGX_HTTP_BAD_REQUEST);
|
|
|
929 return;
|
|
0
|
930 }
|
|
|
931 }
|
|
|
932
|
|
|
933
|
|
50
|
934 static ssize_t
|
|
|
935 ngx_http_read_request_header(ngx_http_request_t *r)
|
|
0
|
936 {
|
|
|
937 ssize_t n;
|
|
|
938 ngx_event_t *rev;
|
|
230
|
939 ngx_connection_t *c;
|
|
0
|
940 ngx_http_core_srv_conf_t *cscf;
|
|
|
941
|
|
230
|
942 c = r->connection;
|
|
|
943 rev = c->read;
|
|
0
|
944
|
|
|
945 n = r->header_in->last - r->header_in->pos;
|
|
|
946
|
|
|
947 if (n > 0) {
|
|
|
948 return n;
|
|
|
949 }
|
|
|
950
|
|
72
|
951 if (rev->ready) {
|
|
230
|
952 n = c->recv(c, r->header_in->last,
|
|
|
953 r->header_in->end - r->header_in->last);
|
|
72
|
954 } else {
|
|
|
955 n = NGX_AGAIN;
|
|
0
|
956 }
|
|
|
957
|
|
|
958 if (n == NGX_AGAIN) {
|
|
|
959 if (!r->header_timeout_set) {
|
|
|
960 cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
|
|
|
961 ngx_add_timer(rev, cscf->client_header_timeout);
|
|
|
962 r->header_timeout_set = 1;
|
|
|
963 }
|
|
|
964
|
|
|
965 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) {
|
|
|
966 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
967 return NGX_ERROR;
|
|
|
968 }
|
|
|
969
|
|
|
970 return NGX_AGAIN;
|
|
|
971 }
|
|
|
972
|
|
|
973 if (n == 0) {
|
|
230
|
974 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
0
|
975 "client closed prematurely connection");
|
|
|
976 }
|
|
|
977
|
|
|
978 if (n == 0 || n == NGX_ERROR) {
|
|
230
|
979 c->error = rev->error;
|
|
|
980 c->log->action = "sending response to client";
|
|
|
981
|
|
194
|
982 ngx_http_finalize_request(r, NGX_HTTP_BAD_REQUEST);
|
|
0
|
983 return NGX_ERROR;
|
|
|
984 }
|
|
|
985
|
|
|
986 r->header_in->last += n;
|
|
|
987
|
|
|
988 return n;
|
|
|
989 }
|
|
|
990
|
|
|
991
|
|
50
|
992 static ngx_int_t
|
|
|
993 ngx_http_alloc_large_header_buffer(ngx_http_request_t *r,
|
|
|
994 ngx_uint_t request_line)
|
|
0
|
995 {
|
|
|
996 u_char *old, *new;
|
|
|
997 ngx_buf_t *b;
|
|
|
998 ngx_http_connection_t *hc;
|
|
|
999 ngx_http_core_srv_conf_t *cscf;
|
|
|
1000
|
|
|
1001 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1002 "http alloc large header buffer");
|
|
|
1003
|
|
|
1004 if (request_line && r->state == 0) {
|
|
|
1005
|
|
|
1006 /* the client fills up the buffer with "\r\n" */
|
|
|
1007
|
|
24
|
1008 r->request_length += r->header_in->end - r->header_in->start;
|
|
|
1009
|
|
0
|
1010 r->header_in->pos = r->header_in->start;
|
|
|
1011 r->header_in->last = r->header_in->start;
|
|
|
1012
|
|
|
1013 return NGX_OK;
|
|
|
1014 }
|
|
|
1015
|
|
|
1016 old = request_line ? r->request_start : r->header_name_start;
|
|
|
1017
|
|
|
1018 cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
|
|
|
1019
|
|
|
1020 if (r->state != 0
|
|
|
1021 && (size_t) (r->header_in->pos - old)
|
|
|
1022 >= cscf->large_client_header_buffers.size)
|
|
|
1023 {
|
|
|
1024 return NGX_DECLINED;
|
|
|
1025 }
|
|
|
1026
|
|
|
1027 hc = r->http_connection;
|
|
|
1028
|
|
|
1029 if (hc->nfree) {
|
|
|
1030 b = hc->free[--hc->nfree];
|
|
|
1031
|
|
|
1032 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
10
|
1033 "http large header free: %p %uz",
|
|
0
|
1034 b->pos, b->end - b->last);
|
|
|
1035
|
|
|
1036 } else if (hc->nbusy < cscf->large_client_header_buffers.num) {
|
|
|
1037
|
|
|
1038 if (hc->busy == NULL) {
|
|
|
1039 hc->busy = ngx_palloc(r->connection->pool,
|
|
|
1040 cscf->large_client_header_buffers.num * sizeof(ngx_buf_t *));
|
|
|
1041 if (hc->busy == NULL) {
|
|
|
1042 return NGX_ERROR;
|
|
|
1043 }
|
|
|
1044 }
|
|
|
1045
|
|
|
1046 b = ngx_create_temp_buf(r->connection->pool,
|
|
|
1047 cscf->large_client_header_buffers.size);
|
|
|
1048 if (b == NULL) {
|
|
|
1049 return NGX_ERROR;
|
|
|
1050 }
|
|
|
1051
|
|
|
1052 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
10
|
1053 "http large header alloc: %p %uz",
|
|
0
|
1054 b->pos, b->end - b->last);
|
|
|
1055
|
|
|
1056 } else {
|
|
|
1057 return NGX_DECLINED;
|
|
|
1058 }
|
|
|
1059
|
|
|
1060 hc->busy[hc->nbusy++] = b;
|
|
|
1061
|
|
|
1062 if (r->state == 0) {
|
|
|
1063 /*
|
|
|
1064 * r->state == 0 means that a header line was parsed successfully
|
|
|
1065 * and we do not need to copy incomplete header line and
|
|
|
1066 * to relocate the parser header pointers
|
|
|
1067 */
|
|
|
1068
|
|
24
|
1069 r->request_length += r->header_in->end - r->header_in->start;
|
|
|
1070
|
|
0
|
1071 r->header_in = b;
|
|
|
1072
|
|
|
1073 return NGX_OK;
|
|
|
1074 }
|
|
|
1075
|
|
|
1076 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1077 "http large header copy: %d", r->header_in->pos - old);
|
|
|
1078
|
|
24
|
1079 r->request_length += old - r->header_in->start;
|
|
|
1080
|
|
0
|
1081 new = b->start;
|
|
|
1082
|
|
|
1083 ngx_memcpy(new, old, r->header_in->pos - old);
|
|
|
1084
|
|
|
1085 b->pos = new + (r->header_in->pos - old);
|
|
|
1086 b->last = new + (r->header_in->pos - old);
|
|
|
1087
|
|
|
1088 if (request_line) {
|
|
|
1089 r->request_start = new;
|
|
|
1090
|
|
|
1091 if (r->request_end) {
|
|
|
1092 r->request_end = new + (r->request_end - old);
|
|
|
1093 }
|
|
|
1094
|
|
|
1095 r->method_end = new + (r->method_end - old);
|
|
|
1096
|
|
|
1097 r->uri_start = new + (r->uri_start - old);
|
|
|
1098 r->uri_end = new + (r->uri_end - old);
|
|
|
1099
|
|
|
1100 if (r->schema_start) {
|
|
|
1101 r->schema_start = new + (r->schema_start - old);
|
|
|
1102 r->schema_end = new + (r->schema_end - old);
|
|
|
1103 }
|
|
|
1104
|
|
|
1105 if (r->host_start) {
|
|
|
1106 r->host_start = new + (r->host_start - old);
|
|
|
1107 r->host_end = new + (r->host_end - old);
|
|
|
1108 }
|
|
|
1109
|
|
|
1110 if (r->port_start) {
|
|
|
1111 r->port_start = new + (r->port_start - old);
|
|
|
1112 r->port_end = new + (r->port_end - old);
|
|
|
1113 }
|
|
|
1114
|
|
|
1115 if (r->uri_ext) {
|
|
|
1116 r->uri_ext = new + (r->uri_ext - old);
|
|
|
1117 }
|
|
|
1118
|
|
|
1119 if (r->args_start) {
|
|
|
1120 r->args_start = new + (r->args_start - old);
|
|
|
1121 }
|
|
|
1122
|
|
|
1123 } else {
|
|
|
1124 r->header_name_start = new;
|
|
|
1125 r->header_name_end = new + (r->header_name_end - old);
|
|
|
1126 r->header_start = new + (r->header_start - old);
|
|
|
1127 r->header_end = new + (r->header_end - old);
|
|
|
1128 }
|
|
|
1129
|
|
|
1130 r->header_in = b;
|
|
|
1131
|
|
|
1132 return NGX_OK;
|
|
|
1133 }
|
|
|
1134
|
|
|
1135
|
|
50
|
1136 static ngx_int_t
|
|
58
|
1137 ngx_http_process_header_line(ngx_http_request_t *r, ngx_table_elt_t *h,
|
|
|
1138 ngx_uint_t offset)
|
|
|
1139 {
|
|
|
1140 ngx_table_elt_t **ph;
|
|
|
1141
|
|
|
1142 ph = (ngx_table_elt_t **) ((char *) &r->headers_in + offset);
|
|
|
1143
|
|
|
1144 if (*ph == NULL) {
|
|
|
1145 *ph = h;
|
|
|
1146 }
|
|
|
1147
|
|
|
1148 return NGX_OK;
|
|
|
1149 }
|
|
|
1150
|
|
|
1151
|
|
|
1152 static ngx_int_t
|
|
72
|
1153 ngx_http_process_unique_header_line(ngx_http_request_t *r, ngx_table_elt_t *h,
|
|
|
1154 ngx_uint_t offset)
|
|
|
1155 {
|
|
|
1156 ngx_table_elt_t **ph;
|
|
|
1157
|
|
|
1158 ph = (ngx_table_elt_t **) ((char *) &r->headers_in + offset);
|
|
|
1159
|
|
|
1160 if (*ph == NULL) {
|
|
|
1161 *ph = h;
|
|
|
1162 return NGX_OK;
|
|
|
1163 }
|
|
|
1164
|
|
|
1165 ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
|
|
230
|
1166 "client sent duplicate header line: \"%V: %V\", "
|
|
|
1167 "previous value: \"%V: %V\"",
|
|
|
1168 &h->key, &h->value, &(*ph)->key, &(*ph)->value);
|
|
72
|
1169
|
|
|
1170 ngx_http_finalize_request(r, NGX_HTTP_BAD_REQUEST);
|
|
|
1171
|
|
|
1172 return NGX_ERROR;
|
|
|
1173 }
|
|
|
1174
|
|
|
1175
|
|
|
1176 static ngx_int_t
|
|
58
|
1177 ngx_http_process_cookie(ngx_http_request_t *r, ngx_table_elt_t *h,
|
|
|
1178 ngx_uint_t offset)
|
|
|
1179 {
|
|
|
1180 ngx_table_elt_t **cookie;
|
|
|
1181
|
|
|
1182 cookie = ngx_array_push(&r->headers_in.cookies);
|
|
72
|
1183 if (cookie) {
|
|
|
1184 *cookie = h;
|
|
|
1185 return NGX_OK;
|
|
58
|
1186 }
|
|
|
1187
|
|
72
|
1188 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
1189
|
|
|
1190 return NGX_ERROR;
|
|
58
|
1191 }
|
|
|
1192
|
|
|
1193
|
|
|
1194 static ngx_int_t
|
|
50
|
1195 ngx_http_process_request_header(ngx_http_request_t *r)
|
|
0
|
1196 {
|
|
196
|
1197 size_t len;
|
|
|
1198 u_char *ua, *user_agent, ch;
|
|
198
|
1199 ngx_uint_t hash;
|
|
196
|
1200 #if (NGX_HTTP_SSL)
|
|
|
1201 long rc;
|
|
|
1202 ngx_http_ssl_srv_conf_t *sscf;
|
|
|
1203 #endif
|
|
0
|
1204
|
|
|
1205 if (r->headers_in.host) {
|
|
198
|
1206
|
|
|
1207 hash = 0;
|
|
|
1208
|
|
0
|
1209 for (len = 0; len < r->headers_in.host->value.len; len++) {
|
|
26
|
1210 ch = r->headers_in.host->value.data[len];
|
|
|
1211
|
|
|
1212 if (ch == ':') {
|
|
0
|
1213 break;
|
|
|
1214 }
|
|
26
|
1215
|
|
198
|
1216 ch = ngx_tolower(ch);
|
|
|
1217 r->headers_in.host->value.data[len] = ch;
|
|
|
1218 hash = ngx_hash(hash, ch);
|
|
0
|
1219 }
|
|
54
|
1220
|
|
198
|
1221 if (len && r->headers_in.host->value.data[len - 1] == '.') {
|
|
58
|
1222 len--;
|
|
198
|
1223 hash = ngx_hash_key(r->headers_in.host->value.data, len);
|
|
58
|
1224 }
|
|
|
1225
|
|
0
|
1226 r->headers_in.host_name_len = len;
|
|
|
1227
|
|
198
|
1228 if (r->virtual_names) {
|
|
|
1229 ngx_http_find_virtual_server(r, r->virtual_names, hash);
|
|
|
1230 }
|
|
0
|
1231
|
|
|
1232 } else {
|
|
|
1233 if (r->http_version > NGX_HTTP_VERSION_10) {
|
|
54
|
1234 ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
|
|
|
1235 "client sent HTTP/1.1 request without \"Host\" header");
|
|
|
1236 ngx_http_finalize_request(r, NGX_HTTP_BAD_REQUEST);
|
|
|
1237 return NGX_ERROR;
|
|
0
|
1238 }
|
|
54
|
1239
|
|
0
|
1240 r->headers_in.host_name_len = 0;
|
|
|
1241 }
|
|
|
1242
|
|
|
1243 if (r->headers_in.content_length) {
|
|
|
1244 r->headers_in.content_length_n =
|
|
212
|
1245 ngx_atoof(r->headers_in.content_length->value.data,
|
|
0
|
1246 r->headers_in.content_length->value.len);
|
|
|
1247
|
|
|
1248 if (r->headers_in.content_length_n == NGX_ERROR) {
|
|
54
|
1249 ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
|
|
|
1250 "client sent invalid \"Content-Length\" header");
|
|
130
|
1251 ngx_http_finalize_request(r, NGX_HTTP_LENGTH_REQUIRED);
|
|
54
|
1252 return NGX_ERROR;
|
|
0
|
1253 }
|
|
|
1254 }
|
|
|
1255
|
|
188
|
1256 if (r->method & (NGX_HTTP_POST|NGX_HTTP_PUT)
|
|
|
1257 && r->headers_in.content_length_n == -1)
|
|
|
1258 {
|
|
54
|
1259 ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
|
|
|
1260 "client sent POST method without \"Content-Length\" header");
|
|
130
|
1261 ngx_http_finalize_request(r, NGX_HTTP_LENGTH_REQUIRED);
|
|
|
1262 return NGX_ERROR;
|
|
|
1263 }
|
|
|
1264
|
|
|
1265 if (r->headers_in.transfer_encoding
|
|
|
1266 && ngx_strstr(r->headers_in.transfer_encoding->value.data, "chunked"))
|
|
|
1267 {
|
|
|
1268 ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
|
|
|
1269 "client sent \"Transfer-Encoding: chunked\" header");
|
|
|
1270 ngx_http_finalize_request(r, NGX_HTTP_LENGTH_REQUIRED);
|
|
54
|
1271 return NGX_ERROR;
|
|
0
|
1272 }
|
|
|
1273
|
|
|
1274 if (r->plain_http) {
|
|
54
|
1275 ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
|
|
|
1276 "client sent plain HTTP request to HTTPS port");
|
|
|
1277 ngx_http_finalize_request(r, NGX_HTTP_TO_HTTPS);
|
|
|
1278 return NGX_ERROR;
|
|
0
|
1279 }
|
|
|
1280
|
|
|
1281 if (r->headers_in.connection) {
|
|
|
1282 if (r->headers_in.connection->value.len == 5
|
|
|
1283 && ngx_strcasecmp(r->headers_in.connection->value.data, "close")
|
|
58
|
1284 == 0)
|
|
0
|
1285 {
|
|
|
1286 r->headers_in.connection_type = NGX_HTTP_CONNECTION_CLOSE;
|
|
|
1287
|
|
|
1288 } else if (r->headers_in.connection->value.len == 10
|
|
|
1289 && ngx_strcasecmp(r->headers_in.connection->value.data,
|
|
58
|
1290 "keep-alive") == 0)
|
|
0
|
1291 {
|
|
|
1292 r->headers_in.connection_type = NGX_HTTP_CONNECTION_KEEP_ALIVE;
|
|
|
1293
|
|
|
1294 if (r->headers_in.keep_alive) {
|
|
|
1295 r->headers_in.keep_alive_n =
|
|
50
|
1296 ngx_atotm(r->headers_in.keep_alive->value.data,
|
|
0
|
1297 r->headers_in.keep_alive->value.len);
|
|
|
1298 }
|
|
|
1299 }
|
|
|
1300 }
|
|
|
1301
|
|
|
1302 if (r->headers_in.user_agent) {
|
|
|
1303
|
|
|
1304 /*
|
|
|
1305 * check some widespread browsers while the headers are still
|
|
|
1306 * in CPU cache
|
|
|
1307 */
|
|
|
1308
|
|
|
1309 user_agent = r->headers_in.user_agent->value.data;
|
|
|
1310
|
|
|
1311 ua = (u_char *) ngx_strstr(user_agent, "MSIE");
|
|
|
1312
|
|
|
1313 if (ua && ua + 8 < user_agent + r->headers_in.user_agent->value.len) {
|
|
|
1314
|
|
|
1315 r->headers_in.msie = 1;
|
|
|
1316
|
|
|
1317 if (ua[4] == ' ' && ua[5] == '4' && ua[6] == '.') {
|
|
|
1318 r->headers_in.msie4 = 1;
|
|
|
1319 }
|
|
|
1320
|
|
|
1321 #if 0
|
|
|
1322 /* MSIE ignores the SSL "close notify" alert */
|
|
22
|
1323 if (c->ssl) {
|
|
96
|
1324 c->ssl->no_send_shutdown = 1;
|
|
22
|
1325 }
|
|
0
|
1326 #endif
|
|
|
1327 }
|
|
|
1328
|
|
|
1329 if (ngx_strstr(user_agent, "Opera")) {
|
|
|
1330 r->headers_in.opera = 1;
|
|
|
1331 r->headers_in.msie = 0;
|
|
|
1332 r->headers_in.msie4 = 0;
|
|
|
1333 }
|
|
|
1334
|
|
|
1335 if (!r->headers_in.msie && !r->headers_in.opera) {
|
|
|
1336
|
|
|
1337 if (ngx_strstr(user_agent, "Gecko/")) {
|
|
|
1338 r->headers_in.gecko = 1;
|
|
|
1339
|
|
|
1340 } else if (ngx_strstr(user_agent, "Konqueror")) {
|
|
|
1341 r->headers_in.konqueror = 1;
|
|
|
1342 }
|
|
|
1343 }
|
|
|
1344 }
|
|
|
1345
|
|
218
|
1346 #if (NGX_HTTP_SSL)
|
|
|
1347
|
|
|
1348 if (r->connection->ssl) {
|
|
|
1349 sscf = ngx_http_get_module_srv_conf(r, ngx_http_ssl_module);
|
|
|
1350
|
|
|
1351 if (sscf->verify) {
|
|
|
1352 rc = SSL_get_verify_result(r->connection->ssl->connection);
|
|
|
1353
|
|
|
1354 if (rc != X509_V_OK) {
|
|
|
1355 ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
|
|
220
|
1356 "client SSL certificate verify error: (%l:%s)",
|
|
218
|
1357 rc, X509_verify_cert_error_string(rc));
|
|
|
1358 ngx_http_finalize_request(r, NGX_HTTPS_CERT_ERROR);
|
|
|
1359 return NGX_ERROR;
|
|
|
1360 }
|
|
|
1361
|
|
|
1362 if (SSL_get_peer_certificate(r->connection->ssl->connection)
|
|
|
1363 == NULL)
|
|
|
1364 {
|
|
|
1365 ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
|
|
|
1366 "client sent no required SSL certificate");
|
|
|
1367 ngx_http_finalize_request(r, NGX_HTTPS_NO_CERT);
|
|
|
1368 return NGX_ERROR;
|
|
|
1369 }
|
|
|
1370 }
|
|
|
1371 }
|
|
|
1372
|
|
|
1373 #endif
|
|
|
1374
|
|
0
|
1375 return NGX_OK;
|
|
|
1376 }
|
|
|
1377
|
|
|
1378
|
|
162
|
1379 static void
|
|
198
|
1380 ngx_http_find_virtual_server(ngx_http_request_t *r,
|
|
|
1381 ngx_http_virtual_names_t *vn, ngx_uint_t hash)
|
|
26
|
1382 {
|
|
142
|
1383 size_t len;
|
|
|
1384 u_char *host;
|
|
|
1385 ngx_http_core_loc_conf_t *clcf;
|
|
|
1386 ngx_http_core_srv_conf_t *cscf;
|
|
|
1387
|
|
|
1388 host = r->headers_in.host->value.data;
|
|
|
1389 len = r->headers_in.host_name_len;
|
|
|
1390
|
|
|
1391 if (vn->hash.buckets) {
|
|
198
|
1392 cscf = ngx_hash_find(&vn->hash, hash, host, len);
|
|
142
|
1393 if (cscf) {
|
|
58
|
1394 goto found;
|
|
26
|
1395 }
|
|
|
1396 }
|
|
|
1397
|
|
142
|
1398 if (vn->dns_wildcards && vn->dns_wildcards->hash.buckets) {
|
|
|
1399 cscf = ngx_hash_find_wildcard(vn->dns_wildcards, host, len);
|
|
|
1400
|
|
|
1401 if (cscf) {
|
|
|
1402 goto found;
|
|
26
|
1403 }
|
|
|
1404 }
|
|
|
1405
|
|
212
|
1406 cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
|
|
|
1407
|
|
|
1408 if (cscf->wildcard) {
|
|
|
1409 r->server_name.len = len;
|
|
|
1410 r->server_name.data = host;
|
|
|
1411 }
|
|
|
1412
|
|
162
|
1413 return;
|
|
58
|
1414
|
|
|
1415 found:
|
|
|
1416
|
|
142
|
1417 r->server_name.len = len;
|
|
|
1418 r->server_name.data = host;
|
|
|
1419
|
|
|
1420 r->srv_conf = cscf->ctx->srv_conf;
|
|
|
1421 r->loc_conf = cscf->ctx->loc_conf;
|
|
58
|
1422
|
|
|
1423 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
1424 r->connection->log->file = clcf->err_log->file;
|
|
|
1425
|
|
|
1426 if (!(r->connection->log->log_level & NGX_LOG_DEBUG_CONNECTION)) {
|
|
|
1427 r->connection->log->log_level = clcf->err_log->log_level;
|
|
26
|
1428 }
|
|
|
1429
|
|
162
|
1430 return;
|
|
26
|
1431 }
|
|
|
1432
|
|
|
1433
|
|
58
|
1434 static void
|
|
|
1435 ngx_http_request_handler(ngx_event_t *ev)
|
|
|
1436 {
|
|
|
1437 ngx_connection_t *c;
|
|
|
1438 ngx_http_request_t *r;
|
|
214
|
1439 ngx_http_log_ctx_t *ctx;
|
|
58
|
1440
|
|
|
1441 c = ev->data;
|
|
|
1442 r = c->data;
|
|
|
1443
|
|
214
|
1444 ctx = c->log->data;
|
|
|
1445 ctx->current_request = r;
|
|
|
1446
|
|
58
|
1447 if (ev->write) {
|
|
|
1448 r->write_event_handler(r);
|
|
|
1449
|
|
|
1450 } else {
|
|
|
1451 r->read_event_handler(r);
|
|
|
1452 }
|
|
|
1453 }
|
|
|
1454
|
|
|
1455
|
|
50
|
1456 void
|
|
58
|
1457 ngx_http_finalize_request(ngx_http_request_t *r, ngx_int_t rc)
|
|
0
|
1458 {
|
|
58
|
1459 ngx_http_request_t *pr;
|
|
214
|
1460 ngx_http_log_ctx_t *ctx;
|
|
0
|
1461 ngx_http_core_loc_conf_t *clcf;
|
|
|
1462
|
|
58
|
1463 if (rc == NGX_DONE) {
|
|
118
|
1464 /* the request pool may be already destroyed */
|
|
58
|
1465 return;
|
|
|
1466 }
|
|
|
1467
|
|
132
|
1468 ngx_log_debug3(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1469 "http finalize request: %d, \"%V?%V\"",
|
|
|
1470 rc, &r->uri, &r->args);
|
|
|
1471
|
|
230
|
1472 if (rc == NGX_DECLINED) {
|
|
|
1473 r->content_handler = NULL;
|
|
|
1474 r->write_event_handler = ngx_http_core_run_phases;
|
|
|
1475 ngx_http_core_run_phases(r);
|
|
|
1476 return;
|
|
|
1477 }
|
|
|
1478
|
|
216
|
1479 if (r != r->main
|
|
|
1480 && rc != NGX_ERROR
|
|
|
1481 && !r->connection->error
|
|
|
1482 && !r->request_output
|
|
|
1483 && r->out)
|
|
|
1484 {
|
|
|
1485 if (!r->header_sent) {
|
|
|
1486 rc = ngx_http_set_content_type(r);
|
|
|
1487
|
|
|
1488 if (rc == NGX_OK) {
|
|
|
1489 rc = ngx_http_send_header(r);
|
|
|
1490
|
|
|
1491 if (rc != NGX_ERROR) {
|
|
|
1492 rc = ngx_http_output_filter(r, r->out);
|
|
|
1493 }
|
|
|
1494 }
|
|
|
1495
|
|
|
1496 } else {
|
|
|
1497 rc = ngx_http_output_filter(r, r->out);
|
|
|
1498 }
|
|
|
1499 }
|
|
|
1500
|
|
162
|
1501 if (rc == NGX_ERROR
|
|
|
1502 || rc == NGX_HTTP_REQUEST_TIME_OUT
|
|
|
1503 || r->connection->error)
|
|
|
1504 {
|
|
190
|
1505 if (rc == NGX_HTTP_CLIENT_CLOSED_REQUEST
|
|
|
1506 && r->headers_out.status == 0)
|
|
|
1507 {
|
|
|
1508 r->headers_out.status = NGX_HTTP_CLIENT_CLOSED_REQUEST;
|
|
|
1509 }
|
|
|
1510
|
|
162
|
1511 if (ngx_http_post_action(r) == NGX_OK) {
|
|
|
1512 return;
|
|
|
1513 }
|
|
|
1514
|
|
118
|
1515 ngx_http_close_request(r, 0);
|
|
0
|
1516 return;
|
|
|
1517 }
|
|
|
1518
|
|
186
|
1519 if (rc >= NGX_HTTP_SPECIAL_RESPONSE
|
|
|
1520 || rc == NGX_HTTP_CREATED
|
|
|
1521 || rc == NGX_HTTP_NO_CONTENT)
|
|
|
1522 {
|
|
136
|
1523 if (rc == NGX_HTTP_CLOSE) {
|
|
|
1524 ngx_http_close_request(r, rc);
|
|
|
1525 return;
|
|
|
1526 }
|
|
|
1527
|
|
146
|
1528 if (r == r->main) {
|
|
118
|
1529 if (r->connection->read->timer_set) {
|
|
|
1530 ngx_del_timer(r->connection->read);
|
|
|
1531 }
|
|
|
1532
|
|
|
1533 if (r->connection->write->timer_set) {
|
|
|
1534 ngx_del_timer(r->connection->write);
|
|
|
1535 }
|
|
|
1536 }
|
|
|
1537
|
|
|
1538 ngx_http_finalize_request(r, ngx_http_special_response_handler(r, rc));
|
|
|
1539 return;
|
|
|
1540 }
|
|
|
1541
|
|
146
|
1542 if (r != r->main || rc == NGX_AGAIN) {
|
|
74
|
1543 if (ngx_http_set_write_handler(r) != NGX_OK) {
|
|
|
1544 return;
|
|
|
1545 }
|
|
58
|
1546 }
|
|
|
1547
|
|
|
1548 r->done = 1;
|
|
|
1549
|
|
|
1550 if (r != r->connection->data) {
|
|
132
|
1551 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1552 "http finalize non-active request: \"%V?%V\"",
|
|
|
1553 &r->uri, &r->args);
|
|
58
|
1554 return;
|
|
|
1555 }
|
|
|
1556
|
|
146
|
1557 if (r != r->main) {
|
|
58
|
1558
|
|
|
1559 pr = r->parent;
|
|
|
1560
|
|
132
|
1561 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1562 "http parent request: \"%V?%V\"", &pr->uri, &pr->args);
|
|
76
|
1563
|
|
58
|
1564 if (rc != NGX_AGAIN) {
|
|
146
|
1565 r->connection->data = pr;
|
|
58
|
1566 }
|
|
|
1567
|
|
214
|
1568 ctx = r->connection->log->data;
|
|
|
1569 ctx->current_request = pr;
|
|
|
1570
|
|
58
|
1571 if (pr->postponed) {
|
|
|
1572
|
|
132
|
1573 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1574 "http request: \"%V?%V\" has postponed",
|
|
|
1575 &pr->uri, &pr->args);
|
|
76
|
1576
|
|
58
|
1577 if (rc != NGX_AGAIN && pr->postponed->request == r) {
|
|
|
1578 pr->postponed = pr->postponed->next;
|
|
146
|
1579 }
|
|
|
1580
|
|
|
1581 if (r->fast_subrequest) {
|
|
194
|
1582
|
|
|
1583 if (rc == NGX_AGAIN) {
|
|
|
1584 r->fast_subrequest = 0;
|
|
|
1585 }
|
|
|
1586
|
|
146
|
1587 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1588 "http fast subrequest: \"%V?%V\" done",
|
|
|
1589 &r->uri, &r->args);
|
|
|
1590 return;
|
|
58
|
1591 }
|
|
|
1592
|
|
194
|
1593 if (rc != NGX_AGAIN) {
|
|
|
1594 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1595 "http wake parent request: \"%V?%V\"",
|
|
|
1596 &pr->uri, &pr->args);
|
|
|
1597
|
|
|
1598 pr->write_event_handler(pr);
|
|
|
1599 }
|
|
58
|
1600 }
|
|
|
1601
|
|
|
1602 return;
|
|
|
1603 }
|
|
0
|
1604
|
|
118
|
1605 if (rc == NGX_AGAIN) {
|
|
0
|
1606 return;
|
|
76
|
1607 }
|
|
|
1608
|
|
146
|
1609 if (r->connection->buffered) {
|
|
74
|
1610 (void) ngx_http_set_write_handler(r);
|
|
0
|
1611 return;
|
|
|
1612 }
|
|
|
1613
|
|
178
|
1614 if (!r->post_action) {
|
|
|
1615 r->request_complete = 1;
|
|
|
1616 }
|
|
|
1617
|
|
162
|
1618 if (ngx_http_post_action(r) == NGX_OK) {
|
|
126
|
1619 return;
|
|
|
1620 }
|
|
|
1621
|
|
0
|
1622 if (r->connection->read->timer_set) {
|
|
|
1623 ngx_del_timer(r->connection->read);
|
|
|
1624 }
|
|
|
1625
|
|
|
1626 if (r->connection->write->timer_set) {
|
|
|
1627 r->connection->write->delayed = 0;
|
|
|
1628 ngx_del_timer(r->connection->write);
|
|
|
1629 }
|
|
|
1630
|
|
138
|
1631 if (r->connection->destroyed) {
|
|
|
1632 return;
|
|
|
1633 }
|
|
|
1634
|
|
162
|
1635 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
0
|
1636
|
|
|
1637 if (!ngx_terminate
|
|
|
1638 && !ngx_exiting
|
|
|
1639 && r->keepalive != 0
|
|
|
1640 && clcf->keepalive_timeout > 0)
|
|
|
1641 {
|
|
|
1642 ngx_http_set_keepalive(r);
|
|
|
1643 return;
|
|
|
1644
|
|
|
1645 } else if (r->lingering_close && clcf->lingering_timeout > 0) {
|
|
|
1646 ngx_http_set_lingering_close(r);
|
|
|
1647 return;
|
|
|
1648 }
|
|
|
1649
|
|
|
1650 ngx_http_close_request(r, 0);
|
|
|
1651 }
|
|
|
1652
|
|
|
1653
|
|
74
|
1654 static ngx_int_t
|
|
50
|
1655 ngx_http_set_write_handler(ngx_http_request_t *r)
|
|
0
|
1656 {
|
|
|
1657 ngx_event_t *wev;
|
|
|
1658 ngx_http_core_loc_conf_t *clcf;
|
|
|
1659
|
|
58
|
1660 r->http_state = NGX_HTTP_WRITING_REQUEST_STATE;
|
|
|
1661
|
|
74
|
1662 r->write_event_handler = ngx_http_writer;
|
|
|
1663
|
|
0
|
1664 wev = r->connection->write;
|
|
|
1665
|
|
|
1666 if (wev->ready && wev->delayed) {
|
|
74
|
1667 return NGX_OK;
|
|
0
|
1668 }
|
|
|
1669
|
|
58
|
1670 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
0
|
1671 if (!wev->delayed) {
|
|
|
1672 ngx_add_timer(wev, clcf->send_timeout);
|
|
|
1673 }
|
|
|
1674
|
|
2
|
1675 if (ngx_handle_write_event(wev, clcf->send_lowat) == NGX_ERROR) {
|
|
0
|
1676 ngx_http_close_request(r, 0);
|
|
74
|
1677 return NGX_ERROR;
|
|
0
|
1678 }
|
|
74
|
1679
|
|
|
1680 return NGX_OK;
|
|
0
|
1681 }
|
|
|
1682
|
|
|
1683
|
|
58
|
1684 static void
|
|
|
1685 ngx_http_writer(ngx_http_request_t *r)
|
|
0
|
1686 {
|
|
|
1687 int rc;
|
|
58
|
1688 ngx_event_t *wev;
|
|
0
|
1689 ngx_connection_t *c;
|
|
|
1690 ngx_http_core_loc_conf_t *clcf;
|
|
|
1691
|
|
58
|
1692 c = r->connection;
|
|
|
1693 wev = c->write;
|
|
|
1694
|
|
132
|
1695 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, wev->log, 0,
|
|
|
1696 "http writer handler: \"%V?%V\"", &r->uri, &r->args);
|
|
0
|
1697
|
|
|
1698 if (wev->timedout) {
|
|
|
1699 if (!wev->delayed) {
|
|
54
|
1700 ngx_log_error(NGX_LOG_INFO, c->log, NGX_ETIMEDOUT,
|
|
|
1701 "client timed out");
|
|
|
1702 c->timedout = 1;
|
|
116
|
1703
|
|
162
|
1704 ngx_http_finalize_request(r, NGX_HTTP_REQUEST_TIME_OUT);
|
|
0
|
1705 return;
|
|
|
1706 }
|
|
|
1707
|
|
|
1708 wev->timedout = 0;
|
|
|
1709 wev->delayed = 0;
|
|
|
1710
|
|
|
1711 if (!wev->ready) {
|
|
102
|
1712 clcf = ngx_http_get_module_loc_conf(r->main, ngx_http_core_module);
|
|
0
|
1713 ngx_add_timer(wev, clcf->send_timeout);
|
|
|
1714
|
|
2
|
1715 if (ngx_handle_write_event(wev, clcf->send_lowat) == NGX_ERROR) {
|
|
118
|
1716 ngx_http_close_request(r, 0);
|
|
0
|
1717 }
|
|
|
1718
|
|
|
1719 return;
|
|
|
1720 }
|
|
|
1721
|
|
|
1722 } else {
|
|
|
1723 if (wev->delayed) {
|
|
|
1724 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, wev->log, 0,
|
|
|
1725 "http writer delayed");
|
|
|
1726
|
|
102
|
1727 clcf = ngx_http_get_module_loc_conf(r->main, ngx_http_core_module);
|
|
2
|
1728
|
|
|
1729 if (ngx_handle_write_event(wev, clcf->send_lowat) == NGX_ERROR) {
|
|
118
|
1730 ngx_http_close_request(r, 0);
|
|
0
|
1731 }
|
|
|
1732
|
|
|
1733 return;
|
|
|
1734 }
|
|
|
1735 }
|
|
|
1736
|
|
132
|
1737 rc = ngx_http_output_filter(r, NULL);
|
|
|
1738
|
|
|
1739 if (c->destroyed) {
|
|
|
1740 return;
|
|
58
|
1741 }
|
|
|
1742
|
|
132
|
1743 ngx_log_debug3(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
|
1744 "http writer output filter: %d, \"%V?%V\"",
|
|
|
1745 rc, &r->uri, &r->args);
|
|
0
|
1746
|
|
|
1747 if (rc == NGX_AGAIN) {
|
|
102
|
1748 clcf = ngx_http_get_module_loc_conf(r->main, ngx_http_core_module);
|
|
0
|
1749 if (!wev->ready && !wev->delayed) {
|
|
|
1750 ngx_add_timer(wev, clcf->send_timeout);
|
|
|
1751 }
|
|
|
1752
|
|
2
|
1753 if (ngx_handle_write_event(wev, clcf->send_lowat) == NGX_ERROR) {
|
|
118
|
1754 ngx_http_close_request(r, 0);
|
|
0
|
1755 }
|
|
|
1756
|
|
146
|
1757 if (r == r->main) {
|
|
|
1758 return;
|
|
|
1759 }
|
|
|
1760
|
|
|
1761 rc = NGX_OK;
|
|
0
|
1762 }
|
|
|
1763
|
|
132
|
1764 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, wev->log, 0,
|
|
|
1765 "http writer done: \"%V?%V\"", &r->uri, &r->args);
|
|
0
|
1766
|
|
|
1767 ngx_http_finalize_request(r, rc);
|
|
|
1768 }
|
|
|
1769
|
|
|
1770
|
|
50
|
1771 static void
|
|
58
|
1772 ngx_http_block_read(ngx_http_request_t *r)
|
|
0
|
1773 {
|
|
58
|
1774 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1775 "http read blocked");
|
|
0
|
1776
|
|
|
1777 /* aio does not call this handler */
|
|
|
1778
|
|
58
|
1779 if ((ngx_event_flags & NGX_USE_LEVEL_EVENT)
|
|
|
1780 && r->connection->read->active)
|
|
|
1781 {
|
|
|
1782 if (ngx_del_event(r->connection->read, NGX_READ_EVENT, 0)
|
|
|
1783 == NGX_ERROR)
|
|
|
1784 {
|
|
0
|
1785 ngx_http_close_request(r, 0);
|
|
|
1786 }
|
|
|
1787 }
|
|
|
1788 }
|
|
|
1789
|
|
|
1790
|
|
50
|
1791 static void
|
|
|
1792 ngx_http_set_keepalive(ngx_http_request_t *r)
|
|
0
|
1793 {
|
|
2
|
1794 int tcp_nodelay;
|
|
0
|
1795 ngx_int_t i;
|
|
|
1796 ngx_buf_t *b, *f;
|
|
|
1797 ngx_event_t *rev, *wev;
|
|
|
1798 ngx_connection_t *c;
|
|
|
1799 ngx_http_connection_t *hc;
|
|
|
1800 ngx_http_core_srv_conf_t *cscf;
|
|
|
1801 ngx_http_core_loc_conf_t *clcf;
|
|
|
1802
|
|
|
1803 c = r->connection;
|
|
|
1804 rev = c->read;
|
|
|
1805
|
|
|
1806 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "set http keepalive handler");
|
|
|
1807
|
|
32
|
1808 c->log->action = "closing request";
|
|
0
|
1809
|
|
|
1810 hc = r->http_connection;
|
|
|
1811 b = r->header_in;
|
|
|
1812
|
|
|
1813 if (b->pos < b->last) {
|
|
|
1814
|
|
|
1815 /* the pipelined request */
|
|
|
1816
|
|
|
1817 if (b != c->buffer) {
|
|
|
1818
|
|
4
|
1819 /*
|
|
|
1820 * If the large header buffers were allocated while the previous
|
|
|
1821 * request processing then we do not use c->buffer for
|
|
|
1822 * the pipelined request (see ngx_http_init_request()).
|
|
126
|
1823 *
|
|
4
|
1824 * Now we would move the large header buffers to the free list.
|
|
|
1825 */
|
|
0
|
1826
|
|
|
1827 cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
|
|
|
1828
|
|
|
1829 if (hc->free == NULL) {
|
|
|
1830 hc->free = ngx_palloc(c->pool,
|
|
|
1831 cscf->large_client_header_buffers.num * sizeof(ngx_buf_t *));
|
|
|
1832
|
|
|
1833 if (hc->free == NULL) {
|
|
26
|
1834 ngx_http_close_request(r, 0);
|
|
0
|
1835 return;
|
|
|
1836 }
|
|
|
1837 }
|
|
|
1838
|
|
|
1839 for (i = 0; i < hc->nbusy - 1; i++) {
|
|
|
1840 f = hc->busy[i];
|
|
|
1841 hc->free[hc->nfree++] = f;
|
|
|
1842 f->pos = f->start;
|
|
|
1843 f->last = f->start;
|
|
|
1844 }
|
|
|
1845
|
|
|
1846 hc->busy[0] = b;
|
|
|
1847 hc->nbusy = 1;
|
|
|
1848 }
|
|
|
1849 }
|
|
|
1850
|
|
26
|
1851 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
1852
|
|
118
|
1853 ngx_http_request_done(r, 0);
|
|
|
1854
|
|
0
|
1855 c->data = hc;
|
|
|
1856
|
|
|
1857 ngx_add_timer(rev, clcf->keepalive_timeout);
|
|
|
1858
|
|
58
|
1859 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) {
|
|
0
|
1860 ngx_http_close_connection(c);
|
|
|
1861 return;
|
|
|
1862 }
|
|
|
1863
|
|
|
1864 wev = c->write;
|
|
58
|
1865 wev->handler = ngx_http_empty_handler;
|
|
0
|
1866
|
|
|
1867 if (b->pos < b->last) {
|
|
|
1868
|
|
|
1869 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "pipelined request");
|
|
|
1870
|
|
116
|
1871 #if (NGX_STAT_STUB)
|
|
|
1872 ngx_atomic_fetch_add(ngx_stat_reading, 1);
|
|
|
1873 #endif
|
|
|
1874
|
|
0
|
1875 hc->pipeline = 1;
|
|
32
|
1876 c->log->action = "reading client pipelined request line";
|
|
116
|
1877
|
|
0
|
1878 ngx_http_init_request(rev);
|
|
|
1879 return;
|
|
|
1880 }
|
|
|
1881
|
|
|
1882 hc->pipeline = 0;
|
|
|
1883
|
|
4
|
1884 /*
|
|
|
1885 * To keep a memory footprint as small as possible for an idle
|
|
|
1886 * keepalive connection we try to free the ngx_http_request_t and
|
|
|
1887 * c->buffer's memory if they were allocated outside the c->pool.
|
|
|
1888 * The large header buffers are always allocated outside the c->pool and
|
|
|
1889 * are freed too.
|
|
|
1890 */
|
|
|
1891
|
|
0
|
1892 if (ngx_pfree(c->pool, r) == NGX_OK) {
|
|
|
1893 hc->request = NULL;
|
|
|
1894 }
|
|
|
1895
|
|
|
1896 b = c->buffer;
|
|
|
1897
|
|
|
1898 if (ngx_pfree(c->pool, b->start) == NGX_OK) {
|
|
4
|
1899
|
|
|
1900 /*
|
|
|
1901 * the special note for ngx_http_keepalive_handler() that
|
|
|
1902 * c->buffer's memory was freed
|
|
|
1903 */
|
|
|
1904
|
|
0
|
1905 b->pos = NULL;
|
|
|
1906
|
|
|
1907 } else {
|
|
|
1908 b->pos = b->start;
|
|
|
1909 b->last = b->start;
|
|
|
1910 }
|
|
|
1911
|
|
10
|
1912 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, c->log, 0, "hc free: %p %d",
|
|
0
|
1913 hc->free, hc->nfree);
|
|
|
1914
|
|
|
1915 if (hc->free) {
|
|
|
1916 for (i = 0; i < hc->nfree; i++) {
|
|
|
1917 ngx_pfree(c->pool, hc->free[i]);
|
|
|
1918 hc->free[i] = NULL;
|
|
|
1919 }
|
|
|
1920
|
|
|
1921 hc->nfree = 0;
|
|
|
1922 }
|
|
|
1923
|
|
10
|
1924 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, c->log, 0, "hc busy: %p %d",
|
|
0
|
1925 hc->busy, hc->nbusy);
|
|
|
1926
|
|
|
1927 if (hc->busy) {
|
|
|
1928 for (i = 0; i < hc->nbusy; i++) {
|
|
|
1929 ngx_pfree(c->pool, hc->busy[i]);
|
|
|
1930 hc->busy[i] = NULL;
|
|
|
1931 }
|
|
|
1932
|
|
|
1933 hc->nbusy = 0;
|
|
|
1934 }
|
|
|
1935
|
|
58
|
1936 rev->handler = ngx_http_keepalive_handler;
|
|
0
|
1937
|
|
132
|
1938 if (wev->active && (ngx_event_flags & NGX_USE_LEVEL_EVENT)) {
|
|
|
1939 if (ngx_del_event(wev, NGX_WRITE_EVENT, 0) == NGX_ERROR) {
|
|
|
1940 ngx_http_close_connection(c);
|
|
|
1941 return;
|
|
0
|
1942 }
|
|
|
1943 }
|
|
|
1944
|
|
32
|
1945 c->log->action = "keepalive";
|
|
0
|
1946
|
|
|
1947 if (c->tcp_nopush == NGX_TCP_NOPUSH_SET) {
|
|
50
|
1948 if (ngx_tcp_push(c->fd) == -1) {
|
|
0
|
1949 ngx_connection_error(c, ngx_socket_errno, ngx_tcp_push_n " failed");
|
|
|
1950 ngx_http_close_connection(c);
|
|
|
1951 return;
|
|
|
1952 }
|
|
2
|
1953
|
|
0
|
1954 c->tcp_nopush = NGX_TCP_NOPUSH_UNSET;
|
|
22
|
1955 tcp_nodelay = ngx_tcp_nodelay_and_tcp_nopush ? 1 : 0;
|
|
2
|
1956
|
|
|
1957 } else {
|
|
22
|
1958 tcp_nodelay = 1;
|
|
|
1959 }
|
|
|
1960
|
|
32
|
1961 if (tcp_nodelay
|
|
|
1962 && clcf->tcp_nodelay
|
|
|
1963 && c->tcp_nodelay == NGX_TCP_NODELAY_UNSET)
|
|
|
1964 {
|
|
22
|
1965 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "tcp_nodelay");
|
|
|
1966
|
|
|
1967 if (setsockopt(c->fd, IPPROTO_TCP, TCP_NODELAY,
|
|
184
|
1968 (const void *) &tcp_nodelay, sizeof(int))
|
|
|
1969 == -1)
|
|
22
|
1970 {
|
|
|
1971 ngx_connection_error(c, ngx_socket_errno,
|
|
|
1972 "setsockopt(TCP_NODELAY) failed");
|
|
|
1973 ngx_http_close_connection(c);
|
|
|
1974 return;
|
|
2
|
1975 }
|
|
22
|
1976
|
|
32
|
1977 c->tcp_nodelay = NGX_TCP_NODELAY_SET;
|
|
0
|
1978 }
|
|
|
1979
|
|
|
1980 #if 0
|
|
4
|
1981 /* if ngx_http_request_t was freed then we need some other place */
|
|
0
|
1982 r->http_state = NGX_HTTP_KEEPALIVE_STATE;
|
|
|
1983 #endif
|
|
|
1984
|
|
|
1985 if (rev->ready) {
|
|
|
1986 ngx_http_keepalive_handler(rev);
|
|
|
1987 }
|
|
|
1988 }
|
|
|
1989
|
|
|
1990
|
|
50
|
1991 static void
|
|
|
1992 ngx_http_keepalive_handler(ngx_event_t *rev)
|
|
0
|
1993 {
|
|
50
|
1994 size_t size;
|
|
|
1995 ssize_t n;
|
|
|
1996 ngx_buf_t *b;
|
|
|
1997 ngx_connection_t *c;
|
|
0
|
1998
|
|
|
1999 c = rev->data;
|
|
|
2000
|
|
|
2001 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "http keepalive handler");
|
|
|
2002
|
|
|
2003 if (rev->timedout) {
|
|
|
2004 ngx_http_close_connection(c);
|
|
|
2005 return;
|
|
|
2006 }
|
|
|
2007
|
|
18
|
2008 #if (NGX_HAVE_KQUEUE)
|
|
0
|
2009
|
|
4
|
2010 if (ngx_event_flags & NGX_USE_KQUEUE_EVENT) {
|
|
136
|
2011 if (rev->pending_eof) {
|
|
32
|
2012 c->log->handler = NULL;
|
|
0
|
2013 ngx_log_error(NGX_LOG_INFO, c->log, rev->kq_errno,
|
|
10
|
2014 "kevent() reported that client %V closed "
|
|
32
|
2015 "keepalive connection", &c->addr_text);
|
|
22
|
2016 #if (NGX_HTTP_SSL)
|
|
|
2017 if (c->ssl) {
|
|
96
|
2018 c->ssl->no_send_shutdown = 1;
|
|
22
|
2019 }
|
|
|
2020 #endif
|
|
0
|
2021 ngx_http_close_connection(c);
|
|
|
2022 return;
|
|
|
2023 }
|
|
|
2024 }
|
|
|
2025
|
|
|
2026 #endif
|
|
|
2027
|
|
|
2028 b = c->buffer;
|
|
|
2029 size = b->end - b->start;
|
|
|
2030
|
|
|
2031 if (b->pos == NULL) {
|
|
4
|
2032
|
|
|
2033 /*
|
|
|
2034 * The c->buffer's memory was freed by ngx_http_set_keepalive().
|
|
|
2035 * However, the c->buffer->start and c->buffer->end were not changed
|
|
|
2036 * to keep the buffer size.
|
|
|
2037 */
|
|
|
2038
|
|
50
|
2039 b->pos = ngx_palloc(c->pool, size);
|
|
|
2040 if (b->pos == NULL) {
|
|
0
|
2041 ngx_http_close_connection(c);
|
|
|
2042 return;
|
|
|
2043 }
|
|
|
2044
|
|
|
2045 b->start = b->pos;
|
|
|
2046 b->last = b->pos;
|
|
|
2047 b->end = b->pos + size;
|
|
|
2048 }
|
|
|
2049
|
|
|
2050 /*
|
|
|
2051 * MSIE closes a keepalive connection with RST flag
|
|
|
2052 * so we ignore ECONNRESET here.
|
|
|
2053 */
|
|
|
2054
|
|
|
2055 c->log_error = NGX_ERROR_IGNORE_ECONNRESET;
|
|
|
2056 ngx_set_socket_errno(0);
|
|
|
2057
|
|
|
2058 n = c->recv(c, b->last, size);
|
|
|
2059 c->log_error = NGX_ERROR_INFO;
|
|
|
2060
|
|
|
2061 if (n == NGX_AGAIN) {
|
|
58
|
2062 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) {
|
|
24
|
2063 ngx_http_close_connection(c);
|
|
|
2064 }
|
|
|
2065
|
|
0
|
2066 return;
|
|
|
2067 }
|
|
|
2068
|
|
|
2069 if (n == NGX_ERROR) {
|
|
|
2070 ngx_http_close_connection(c);
|
|
|
2071 return;
|
|
|
2072 }
|
|
|
2073
|
|
32
|
2074 c->log->handler = NULL;
|
|
0
|
2075
|
|
|
2076 if (n == 0) {
|
|
|
2077 ngx_log_error(NGX_LOG_INFO, c->log, ngx_socket_errno,
|
|
32
|
2078 "client %V closed keepalive connection", &c->addr_text);
|
|
0
|
2079 ngx_http_close_connection(c);
|
|
|
2080 return;
|
|
|
2081 }
|
|
|
2082
|
|
|
2083 b->last += n;
|
|
32
|
2084
|
|
116
|
2085 #if (NGX_STAT_STUB)
|
|
|
2086 ngx_atomic_fetch_add(ngx_stat_reading, 1);
|
|
|
2087 #endif
|
|
|
2088
|
|
32
|
2089 c->log->handler = ngx_http_log_error;
|
|
|
2090 c->log->action = "reading client request line";
|
|
0
|
2091
|
|
|
2092 ngx_http_init_request(rev);
|
|
|
2093 }
|
|
|
2094
|
|
|
2095
|
|
50
|
2096 static void
|
|
|
2097 ngx_http_set_lingering_close(ngx_http_request_t *r)
|
|
126
|
2098 {
|
|
0
|
2099 ngx_event_t *rev, *wev;
|
|
|
2100 ngx_connection_t *c;
|
|
|
2101 ngx_http_core_loc_conf_t *clcf;
|
|
|
2102
|
|
|
2103 c = r->connection;
|
|
|
2104
|
|
|
2105 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
2106
|
|
|
2107 rev = c->read;
|
|
58
|
2108 rev->handler = ngx_http_lingering_close_handler;
|
|
0
|
2109
|
|
106
|
2110 r->lingering_time = ngx_time() + (time_t) (clcf->lingering_time / 1000);
|
|
0
|
2111 ngx_add_timer(rev, clcf->lingering_timeout);
|
|
|
2112
|
|
58
|
2113 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) {
|
|
0
|
2114 ngx_http_close_request(r, 0);
|
|
|
2115 return;
|
|
|
2116 }
|
|
|
2117
|
|
|
2118 wev = c->write;
|
|
58
|
2119 wev->handler = ngx_http_empty_handler;
|
|
0
|
2120
|
|
132
|
2121 if (wev->active && (ngx_event_flags & NGX_USE_LEVEL_EVENT)) {
|
|
|
2122 if (ngx_del_event(wev, NGX_WRITE_EVENT, 0) == NGX_ERROR) {
|
|
|
2123 ngx_http_close_request(r, 0);
|
|
|
2124 return;
|
|
0
|
2125 }
|
|
|
2126 }
|
|
|
2127
|
|
|
2128 if (ngx_shutdown_socket(c->fd, NGX_WRITE_SHUTDOWN) == -1) {
|
|
|
2129 ngx_connection_error(c, ngx_socket_errno,
|
|
|
2130 ngx_shutdown_socket_n " failed");
|
|
|
2131 ngx_http_close_request(r, 0);
|
|
|
2132 return;
|
|
|
2133 }
|
|
|
2134
|
|
|
2135 if (rev->ready) {
|
|
|
2136 ngx_http_lingering_close_handler(rev);
|
|
|
2137 }
|
|
|
2138 }
|
|
|
2139
|
|
|
2140
|
|
50
|
2141 static void
|
|
|
2142 ngx_http_lingering_close_handler(ngx_event_t *rev)
|
|
0
|
2143 {
|
|
|
2144 ssize_t n;
|
|
|
2145 ngx_msec_t timer;
|
|
|
2146 ngx_connection_t *c;
|
|
|
2147 ngx_http_request_t *r;
|
|
|
2148 ngx_http_core_loc_conf_t *clcf;
|
|
|
2149 u_char buffer[NGX_HTTP_LINGERING_BUFFER_SIZE];
|
|
|
2150
|
|
|
2151 c = rev->data;
|
|
|
2152 r = c->data;
|
|
|
2153
|
|
|
2154 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
|
2155 "http lingering close handler");
|
|
|
2156
|
|
|
2157 if (rev->timedout) {
|
|
126
|
2158 c->timedout = 1;
|
|
0
|
2159 ngx_http_close_request(r, 0);
|
|
|
2160 return;
|
|
|
2161 }
|
|
|
2162
|
|
|
2163 timer = r->lingering_time - ngx_time();
|
|
|
2164 if (timer <= 0) {
|
|
|
2165 ngx_http_close_request(r, 0);
|
|
|
2166 return;
|
|
|
2167 }
|
|
|
2168
|
|
|
2169 do {
|
|
|
2170 n = c->recv(c, buffer, NGX_HTTP_LINGERING_BUFFER_SIZE);
|
|
|
2171
|
|
|
2172 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0, "lingering read: %d", n);
|
|
|
2173
|
|
|
2174 if (n == NGX_ERROR || n == 0) {
|
|
|
2175 ngx_http_close_request(r, 0);
|
|
|
2176 return;
|
|
|
2177 }
|
|
|
2178
|
|
|
2179 } while (rev->ready);
|
|
|
2180
|
|
58
|
2181 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) {
|
|
26
|
2182 ngx_http_close_request(r, 0);
|
|
24
|
2183 return;
|
|
|
2184 }
|
|
|
2185
|
|
0
|
2186 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
2187
|
|
|
2188 timer *= 1000;
|
|
|
2189
|
|
|
2190 if (timer > clcf->lingering_timeout) {
|
|
|
2191 timer = clcf->lingering_timeout;
|
|
|
2192 }
|
|
|
2193
|
|
|
2194 ngx_add_timer(rev, timer);
|
|
|
2195 }
|
|
|
2196
|
|
|
2197
|
|
50
|
2198 void
|
|
|
2199 ngx_http_empty_handler(ngx_event_t *wev)
|
|
0
|
2200 {
|
|
|
2201 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, wev->log, 0, "http empty handler");
|
|
|
2202
|
|
|
2203 return;
|
|
|
2204 }
|
|
|
2205
|
|
|
2206
|
|
58
|
2207 void
|
|
|
2208 ngx_http_request_empty_handler(ngx_http_request_t *r)
|
|
|
2209 {
|
|
|
2210 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
132
|
2211 "http request empty handler");
|
|
58
|
2212
|
|
|
2213 return;
|
|
|
2214 }
|
|
|
2215
|
|
|
2216
|
|
50
|
2217 ngx_int_t
|
|
130
|
2218 ngx_http_send_special(ngx_http_request_t *r, ngx_uint_t flags)
|
|
0
|
2219 {
|
|
|
2220 ngx_buf_t *b;
|
|
|
2221 ngx_chain_t out;
|
|
|
2222
|
|
50
|
2223 b = ngx_calloc_buf(r->pool);
|
|
|
2224 if (b == NULL) {
|
|
0
|
2225 return NGX_ERROR;
|
|
|
2226 }
|
|
|
2227
|
|
130
|
2228 if (flags & NGX_HTTP_LAST) {
|
|
|
2229 b->last_buf = 1;
|
|
|
2230 }
|
|
|
2231
|
|
|
2232 if (flags & NGX_HTTP_FLUSH) {
|
|
|
2233 b->flush = 1;
|
|
|
2234 }
|
|
|
2235
|
|
0
|
2236 out.buf = b;
|
|
|
2237 out.next = NULL;
|
|
|
2238
|
|
|
2239 return ngx_http_output_filter(r, &out);
|
|
|
2240 }
|
|
|
2241
|
|
|
2242
|
|
162
|
2243 static ngx_int_t
|
|
|
2244 ngx_http_post_action(ngx_http_request_t *r)
|
|
|
2245 {
|
|
|
2246 ngx_http_core_loc_conf_t *clcf;
|
|
|
2247
|
|
|
2248 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
2249
|
|
|
2250 if (clcf->post_action.data == NULL) {
|
|
|
2251 return NGX_DECLINED;
|
|
|
2252 }
|
|
|
2253
|
|
172
|
2254 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
2255 "post action: \"%V\"", &clcf->post_action);
|
|
|
2256
|
|
162
|
2257 r->http_version = NGX_HTTP_VERSION_9;
|
|
|
2258 r->header_only = 1;
|
|
178
|
2259 r->post_action = 1;
|
|
162
|
2260
|
|
|
2261 ngx_http_internal_redirect(r, &clcf->post_action, NULL);
|
|
|
2262
|
|
|
2263 return NGX_OK;
|
|
|
2264 }
|
|
|
2265
|
|
|
2266
|
|
|
2267 static void
|
|
58
|
2268 ngx_http_close_request(ngx_http_request_t *r, ngx_int_t error)
|
|
0
|
2269 {
|
|
188
|
2270 ngx_connection_t *c;
|
|
118
|
2271
|
|
|
2272 c = r->connection;
|
|
188
|
2273
|
|
|
2274 ngx_http_request_done(r->main, error);
|
|
118
|
2275 ngx_http_close_connection(c);
|
|
|
2276 }
|
|
|
2277
|
|
|
2278
|
|
162
|
2279 static void
|
|
118
|
2280 ngx_http_request_done(ngx_http_request_t *r, ngx_int_t error)
|
|
|
2281 {
|
|
|
2282 ngx_log_t *log;
|
|
130
|
2283 ngx_uint_t i, n;
|
|
118
|
2284 struct linger linger;
|
|
188
|
2285 ngx_http_cleanup_t *cln;
|
|
118
|
2286 ngx_http_log_ctx_t *ctx;
|
|
130
|
2287 ngx_http_handler_pt *log_handler;
|
|
118
|
2288 ngx_http_core_loc_conf_t *clcf;
|
|
|
2289 ngx_http_core_main_conf_t *cmcf;
|
|
0
|
2290
|
|
|
2291 log = r->connection->log;
|
|
|
2292
|
|
|
2293 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, log, 0, "http close request");
|
|
|
2294
|
|
|
2295 if (r->pool == NULL) {
|
|
80
|
2296 ngx_log_error(NGX_LOG_ALERT, log, 0, "http request already closed");
|
|
0
|
2297 return;
|
|
|
2298 }
|
|
|
2299
|
|
188
|
2300 for (cln = r->cleanup; cln; cln = cln->next) {
|
|
|
2301 if (cln->handler) {
|
|
|
2302 cln->handler(cln->data);
|
|
|
2303 }
|
|
|
2304 }
|
|
|
2305
|
|
0
|
2306 #if (NGX_STAT_STUB)
|
|
116
|
2307
|
|
0
|
2308 if (r->stat_reading) {
|
|
110
|
2309 ngx_atomic_fetch_add(ngx_stat_reading, -1);
|
|
0
|
2310 }
|
|
|
2311
|
|
|
2312 if (r->stat_writing) {
|
|
110
|
2313 ngx_atomic_fetch_add(ngx_stat_writing, -1);
|
|
0
|
2314 }
|
|
116
|
2315
|
|
0
|
2316 #endif
|
|
|
2317
|
|
|
2318 if (error && r->headers_out.status == 0) {
|
|
|
2319 r->headers_out.status = error;
|
|
|
2320 }
|
|
|
2321
|
|
118
|
2322 cmcf = ngx_http_get_module_main_conf(r, ngx_http_core_module);
|
|
|
2323
|
|
130
|
2324 log_handler = cmcf->phases[NGX_HTTP_LOG_PHASE].handlers.elts;
|
|
|
2325 n = cmcf->phases[NGX_HTTP_LOG_PHASE].handlers.nelts;
|
|
|
2326 for (i = 0; i < n; i++) {
|
|
|
2327 log_handler[i](r);
|
|
118
|
2328 }
|
|
0
|
2329
|
|
|
2330 if (r->connection->timedout) {
|
|
|
2331 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
2332
|
|
|
2333 if (clcf->reset_timedout_connection) {
|
|
58
|
2334 linger.l_onoff = 1;
|
|
|
2335 linger.l_linger = 0;
|
|
0
|
2336
|
|
|
2337 if (setsockopt(r->connection->fd, SOL_SOCKET, SO_LINGER,
|
|
58
|
2338 (const void *) &linger, sizeof(struct linger)) == -1)
|
|
0
|
2339 {
|
|
|
2340 ngx_log_error(NGX_LOG_ALERT, log, ngx_socket_errno,
|
|
|
2341 "setsockopt(SO_LINGER) failed");
|
|
|
2342 }
|
|
|
2343 }
|
|
|
2344 }
|
|
|
2345
|
|
58
|
2346 /* the various request strings were allocated from r->pool */
|
|
0
|
2347 ctx = log->data;
|
|
10
|
2348 ctx->request = NULL;
|
|
0
|
2349
|
|
|
2350 r->request_line.len = 0;
|
|
|
2351
|
|
132
|
2352 r->connection->destroyed = 1;
|
|
|
2353
|
|
0
|
2354 ngx_destroy_pool(r->pool);
|
|
|
2355 }
|
|
|
2356
|
|
|
2357
|
|
80
|
2358 static void
|
|
50
|
2359 ngx_http_close_connection(ngx_connection_t *c)
|
|
0
|
2360 {
|
|
28
|
2361 ngx_pool_t *pool;
|
|
|
2362
|
|
0
|
2363 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
|
2364 "close http connection: %d", c->fd);
|
|
|
2365
|
|
88
|
2366 #if (NGX_HTTP_SSL)
|
|
2
|
2367
|
|
|
2368 if (c->ssl) {
|
|
|
2369 if (ngx_ssl_shutdown(c) == NGX_AGAIN) {
|
|
126
|
2370 c->ssl->handler = ngx_http_close_connection;
|
|
2
|
2371 return;
|
|
|
2372 }
|
|
|
2373 }
|
|
|
2374
|
|
|
2375 #endif
|
|
|
2376
|
|
0
|
2377 #if (NGX_STAT_STUB)
|
|
110
|
2378 ngx_atomic_fetch_add(ngx_stat_active, -1);
|
|
0
|
2379 #endif
|
|
|
2380
|
|
132
|
2381 c->destroyed = 1;
|
|
|
2382
|
|
28
|
2383 pool = c->pool;
|
|
|
2384
|
|
0
|
2385 ngx_close_connection(c);
|
|
28
|
2386
|
|
50
|
2387 ngx_destroy_pool(pool);
|
|
0
|
2388 }
|
|
|
2389
|
|
|
2390
|
|
50
|
2391 static u_char *
|
|
|
2392 ngx_http_log_error(ngx_log_t *log, u_char *buf, size_t len)
|
|
0
|
2393 {
|
|
32
|
2394 u_char *p;
|
|
54
|
2395 ngx_http_request_t *r;
|
|
32
|
2396 ngx_http_log_ctx_t *ctx;
|
|
10
|
2397
|
|
32
|
2398 if (log->action) {
|
|
58
|
2399 p = ngx_snprintf(buf, len, " while %s", log->action);
|
|
10
|
2400 len -= p - buf;
|
|
54
|
2401 buf = p;
|
|
10
|
2402 }
|
|
|
2403
|
|
58
|
2404 ctx = log->data;
|
|
|
2405
|
|
54
|
2406 p = ngx_snprintf(buf, len, ", client: %V", ctx->client);
|
|
58
|
2407 len -= p - buf;
|
|
54
|
2408
|
|
|
2409 r = ctx->request;
|
|
|
2410
|
|
58
|
2411 if (r) {
|
|
214
|
2412 return r->log_handler(r, ctx->current_request, p, len);
|
|
0
|
2413 }
|
|
10
|
2414
|
|
58
|
2415 return p;
|
|
|
2416 }
|
|
|
2417
|
|
|
2418
|
|
|
2419 static u_char *
|
|
214
|
2420 ngx_http_log_error_handler(ngx_http_request_t *r, ngx_http_request_t *sr,
|
|
|
2421 u_char *buf, size_t len)
|
|
58
|
2422 {
|
|
214
|
2423 u_char *p;
|
|
|
2424 ngx_http_upstream_t *u;
|
|
|
2425 ngx_peer_connection_t *peer;
|
|
54
|
2426
|
|
|
2427 if (r->server_name.data) {
|
|
|
2428 p = ngx_snprintf(buf, len, ", server: %V", &r->server_name);
|
|
52
|
2429 len -= p - buf;
|
|
54
|
2430 buf = p;
|
|
52
|
2431 }
|
|
|
2432
|
|
54
|
2433 if (r->unparsed_uri.data) {
|
|
|
2434 p = ngx_snprintf(buf, len, ", URL: \"%V\"", &r->unparsed_uri);
|
|
|
2435 len -= p - buf;
|
|
|
2436 buf = p;
|
|
|
2437
|
|
|
2438 } else {
|
|
|
2439 if (r->request_line.data == NULL && r->request_start) {
|
|
|
2440 for (p = r->request_start; p < r->header_in->last; p++) {
|
|
|
2441 if (*p == CR || *p == LF) {
|
|
|
2442 break;
|
|
|
2443 }
|
|
|
2444 }
|
|
|
2445
|
|
|
2446 r->request_line.len = p - r->request_start;
|
|
|
2447 r->request_line.data = r->request_start;
|
|
|
2448 }
|
|
|
2449
|
|
|
2450 if (r->request_line.len) {
|
|
|
2451 p = ngx_snprintf(buf, len, ", request: \"%V\"", &r->request_line);
|
|
|
2452 len -= p - buf;
|
|
|
2453 buf = p;
|
|
|
2454 }
|
|
10
|
2455 }
|
|
|
2456
|
|
214
|
2457 if (r != sr) {
|
|
|
2458 p = ngx_snprintf(buf, len, ", subrequest: \"%V\"", &sr->uri);
|
|
|
2459 len -= p - buf;
|
|
|
2460 buf = p;
|
|
|
2461 }
|
|
|
2462
|
|
|
2463 u = sr->upstream;
|
|
|
2464
|
|
|
2465 if (u) {
|
|
|
2466 peer = &u->peer;
|
|
|
2467
|
|
|
2468 p = ngx_snprintf(buf, len, ", upstream: \"%V%V%s%V\"",
|
|
|
2469 &u->conf->schema,
|
|
|
2470 &peer->peers->peer[peer->cur_peer].name,
|
|
|
2471 peer->peers->peer[peer->cur_peer].uri_separator,
|
|
|
2472 &u->uri);
|
|
|
2473 len -= p - buf;
|
|
|
2474 buf = p;
|
|
|
2475 }
|
|
|
2476
|
|
54
|
2477 if (r->headers_in.host) {
|
|
|
2478 p = ngx_snprintf(buf, len, ", host: \"%V\"",
|
|
|
2479 &r->headers_in.host->value);
|
|
|
2480 len -= p - buf;
|
|
|
2481 buf = p;
|
|
|
2482 }
|
|
|
2483
|
|
|
2484 if (r->headers_in.referer) {
|
|
|
2485 p = ngx_snprintf(buf, len, ", referrer: \"%V\"",
|
|
|
2486 &r->headers_in.referer->value);
|
|
|
2487 buf = p;
|
|
|
2488 }
|
|
|
2489
|
|
|
2490 return buf;
|
|
|
2491 }
|
