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