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0
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1
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2 /*
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3 * Copyright (C) Igor Sysoev
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4 */
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5
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6
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7 #include <ngx_config.h>
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8 #include <ngx_core.h>
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9 #include <ngx_event.h>
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10 #include <ngx_http.h>
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11
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12
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13 static void ngx_http_init_request(ngx_event_t *ev);
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14 static void ngx_http_process_request_line(ngx_event_t *rev);
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15 static void ngx_http_process_request_headers(ngx_event_t *rev);
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16 static ssize_t ngx_http_read_request_header(ngx_http_request_t *r);
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17 static ngx_int_t ngx_http_alloc_large_header_buffer(ngx_http_request_t *r,
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50
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18 ngx_uint_t request_line);
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58
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19
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20 static ngx_int_t ngx_http_process_header_line(ngx_http_request_t *r,
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21 ngx_table_elt_t *h, ngx_uint_t offset);
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72
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22 static ngx_int_t ngx_http_process_unique_header_line(ngx_http_request_t *r,
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23 ngx_table_elt_t *h, ngx_uint_t offset);
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58
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24 static ngx_int_t ngx_http_process_cookie(ngx_http_request_t *r,
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25 ngx_table_elt_t *h, ngx_uint_t offset);
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26
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0
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27 static ngx_int_t ngx_http_process_request_header(ngx_http_request_t *r);
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198
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28 static void ngx_http_find_virtual_server(ngx_http_request_t *r,
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29 ngx_http_virtual_names_t *vn, ngx_uint_t hash);
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0
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30
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58
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31 static void ngx_http_request_handler(ngx_event_t *ev);
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74
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32 static ngx_int_t ngx_http_set_write_handler(ngx_http_request_t *r);
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58
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33 static void ngx_http_writer(ngx_http_request_t *r);
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34
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35 static void ngx_http_block_read(ngx_http_request_t *r);
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0
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36 static void ngx_http_set_keepalive(ngx_http_request_t *r);
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37 static void ngx_http_keepalive_handler(ngx_event_t *ev);
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38 static void ngx_http_set_lingering_close(ngx_http_request_t *r);
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39 static void ngx_http_lingering_close_handler(ngx_event_t *ev);
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162
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40 static ngx_int_t ngx_http_post_action(ngx_http_request_t *r);
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80
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41 static void ngx_http_close_request(ngx_http_request_t *r, ngx_int_t error);
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118
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42 static void ngx_http_request_done(ngx_http_request_t *r, ngx_int_t error);
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80
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43 static void ngx_http_close_connection(ngx_connection_t *c);
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0
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44
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32
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45 static u_char *ngx_http_log_error(ngx_log_t *log, u_char *buf, size_t len);
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214
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46 static u_char *ngx_http_log_error_handler(ngx_http_request_t *r,
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47 ngx_http_request_t *sr, u_char *buf, size_t len);
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0
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48
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88
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49 #if (NGX_HTTP_SSL)
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50 static void ngx_http_ssl_handshake(ngx_event_t *rev);
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96
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51 static void ngx_http_ssl_handshake_handler(ngx_connection_t *c);
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88
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52 #endif
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53
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0
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54
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54
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55 static char *ngx_http_client_errors[] = {
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56
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57 /* NGX_HTTP_PARSE_INVALID_METHOD */
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58 "client sent invalid method",
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59
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60 /* NGX_HTTP_PARSE_INVALID_REQUEST */
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61 "client sent invalid request",
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62
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63 /* NGX_HTTP_PARSE_INVALID_09_METHOD */
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64 "client sent invalid method in HTTP/0.9 request"
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0
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65 };
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66
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67
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68 ngx_http_header_t ngx_http_headers_in[] = {
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58
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69 { ngx_string("Host"), offsetof(ngx_http_headers_in_t, host),
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72
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70 ngx_http_process_unique_header_line },
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58
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71
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72 { ngx_string("Connection"), offsetof(ngx_http_headers_in_t, connection),
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72
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73 ngx_http_process_unique_header_line },
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58
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74
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0
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75 { ngx_string("If-Modified-Since"),
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58
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76 offsetof(ngx_http_headers_in_t, if_modified_since),
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77 ngx_http_process_header_line },
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78
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79 { ngx_string("User-Agent"), offsetof(ngx_http_headers_in_t, user_agent),
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80 ngx_http_process_header_line },
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81
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82 { ngx_string("Referer"), offsetof(ngx_http_headers_in_t, referer),
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83 ngx_http_process_header_line },
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84
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0
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85 { ngx_string("Content-Length"),
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58
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86 offsetof(ngx_http_headers_in_t, content_length),
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72
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87 ngx_http_process_unique_header_line },
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58
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88
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28
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89 { ngx_string("Content-Type"),
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58
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90 offsetof(ngx_http_headers_in_t, content_type),
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91 ngx_http_process_header_line },
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92
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93 { ngx_string("Range"), offsetof(ngx_http_headers_in_t, range),
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94 ngx_http_process_header_line },
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95
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130
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96 { ngx_string("Transfer-Encoding"),
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97 offsetof(ngx_http_headers_in_t, transfer_encoding),
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98 ngx_http_process_header_line },
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99
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0
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100 #if (NGX_HTTP_GZIP)
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101 { ngx_string("Accept-Encoding"),
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58
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102 offsetof(ngx_http_headers_in_t, accept_encoding),
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103 ngx_http_process_header_line },
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104
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105 { ngx_string("Via"), offsetof(ngx_http_headers_in_t, via),
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106 ngx_http_process_header_line },
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0
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107 #endif
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108
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109 { ngx_string("Authorization"),
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58
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110 offsetof(ngx_http_headers_in_t, authorization),
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72
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111 ngx_http_process_unique_header_line },
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58
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112
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113 { ngx_string("Keep-Alive"), offsetof(ngx_http_headers_in_t, keep_alive),
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114 ngx_http_process_header_line },
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0
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115
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122
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116 #if (NGX_HTTP_PROXY || NGX_HTTP_REALIP)
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0
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117 { ngx_string("X-Forwarded-For"),
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58
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118 offsetof(ngx_http_headers_in_t, x_forwarded_for),
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119 ngx_http_process_header_line },
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0
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120 #endif
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28
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121
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122
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122 #if (NGX_HTTP_REALIP)
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123 { ngx_string("X-Real-IP"),
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124 offsetof(ngx_http_headers_in_t, x_real_ip),
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125 ngx_http_process_header_line },
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126 #endif
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127
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38
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128 #if (NGX_HTTP_HEADERS)
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58
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129 { ngx_string("Accept"), offsetof(ngx_http_headers_in_t, accept),
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130 ngx_http_process_header_line },
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131
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38
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132 { ngx_string("Accept-Language"),
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58
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133 offsetof(ngx_http_headers_in_t, accept_language),
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134 ngx_http_process_header_line },
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38
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135 #endif
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136
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186
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137 #if (NGX_HTTP_DAV)
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138 { ngx_string("Depth"), offsetof(ngx_http_headers_in_t, depth),
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139 ngx_http_process_header_line },
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140
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141 { ngx_string("Destination"), offsetof(ngx_http_headers_in_t, destination),
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142 ngx_http_process_header_line },
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230
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143
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276
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144 { ngx_string("Overwrite"), offsetof(ngx_http_headers_in_t, overwrite),
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145 ngx_http_process_header_line },
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146
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230
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147 { ngx_string("Date"), offsetof(ngx_http_headers_in_t, date),
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148 ngx_http_process_header_line },
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186
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149 #endif
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150
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58
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151 { ngx_string("Cookie"), 0, ngx_http_process_cookie },
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152
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153 { ngx_null_string, 0, NULL }
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0
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154 };
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155
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156
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50
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157 void
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158 ngx_http_init_connection(ngx_connection_t *c)
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0
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159 {
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160 ngx_event_t *rev;
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161 ngx_http_log_ctx_t *ctx;
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162
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50
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163 ctx = ngx_palloc(c->pool, sizeof(ngx_http_log_ctx_t));
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164 if (ctx == NULL) {
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0
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165 ngx_http_close_connection(c);
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166 return;
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167 }
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168
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10
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169 ctx->client = &c->addr_text;
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170 ctx->request = NULL;
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214
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171 ctx->current_request = NULL;
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32
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172
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173 c->log->connection = c->number;
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174 c->log->handler = ngx_http_log_error;
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0
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175 c->log->data = ctx;
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32
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176 c->log->action = "reading client request line";
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177
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0
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178 c->log_error = NGX_ERROR_INFO;
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179
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180 rev = c->read;
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58
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181 rev->handler = ngx_http_init_request;
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118
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182 c->write->handler = ngx_http_empty_handler;
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0
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183
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116
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184 #if (NGX_STAT_STUB)
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185 ngx_atomic_fetch_add(ngx_stat_reading, 1);
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186 #endif
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187
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0
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188 if (rev->ready) {
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189 /* the deferred accept(), rtsig, aio, iocp */
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190
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160
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191 if (ngx_use_accept_mutex) {
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112
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192 ngx_post_event(rev, &ngx_posted_events);
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0
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193 return;
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194 }
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195
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196 ngx_http_init_request(rev);
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197 return;
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198 }
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199
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200 ngx_add_timer(rev, c->listening->post_accept_timeout);
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201
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202 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) {
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116
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203 #if (NGX_STAT_STUB)
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204 ngx_atomic_fetch_add(ngx_stat_reading, -1);
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205 #endif
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0
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206 ngx_http_close_connection(c);
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207 return;
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208 }
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209 }
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210
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211
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190
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212 static void
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213 ngx_http_init_request(ngx_event_t *rev)
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0
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214 {
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298
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215 ngx_time_t *tp;
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190
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216 socklen_t len;
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122
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217 ngx_uint_t i;
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218 struct sockaddr_in sin;
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219 ngx_connection_t *c;
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220 ngx_http_request_t *r;
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142
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221 ngx_http_in_port_t *hip;
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222 ngx_http_in_addr_t *hia;
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122
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223 ngx_http_log_ctx_t *ctx;
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224 ngx_http_connection_t *hc;
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225 ngx_http_core_srv_conf_t *cscf;
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226 ngx_http_core_loc_conf_t *clcf;
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227 ngx_http_core_main_conf_t *cmcf;
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0
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228 #if (NGX_HTTP_SSL)
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122
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229 ngx_http_ssl_srv_conf_t *sscf;
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0
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230 #endif
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231
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116
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232 #if (NGX_STAT_STUB)
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233 ngx_atomic_fetch_add(ngx_stat_reading, -1);
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234 #endif
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235
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0
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236 c = rev->data;
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237
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238 if (rev->timedout) {
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239 ngx_log_error(NGX_LOG_INFO, c->log, NGX_ETIMEDOUT, "client timed out");
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240
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241 ngx_http_close_connection(c);
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242 return;
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243 }
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244
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245 hc = c->data;
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246
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116
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247 if (hc == NULL) {
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50
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248 hc = ngx_pcalloc(c->pool, sizeof(ngx_http_connection_t));
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249 if (hc == NULL) {
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0
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250 ngx_http_close_connection(c);
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251 return;
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252 }
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253 }
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254
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255 r = hc->request;
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256
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257 if (r) {
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258 ngx_memzero(r, sizeof(ngx_http_request_t));
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259
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260 r->pipeline = hc->pipeline;
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261
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262 if (hc->nbusy) {
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263 r->header_in = hc->busy[0];
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264 }
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265
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266 } else {
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50
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267 r = ngx_pcalloc(c->pool, sizeof(ngx_http_request_t));
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268 if (r == NULL) {
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0
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269 ngx_http_close_connection(c);
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270 return;
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271 }
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272
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273 hc->request = r;
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274 }
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275
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276 c->data = r;
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277 r->http_connection = hc;
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278
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279 c->sent = 0;
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280 r->signature = NGX_HTTP_MODULE;
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281
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282 /* find the server configuration for the address:port */
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283
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284 /* AF_INET only */
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285
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190
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286 hip = c->listening->servers;
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142
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287 hia = hip->addrs;
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288
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289 r->port = hip->port;
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290 r->port_text = &hip->port_text;
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0
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291
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292 i = 0;
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293
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142
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294 if (hip->naddrs > 1) {
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0
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295
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296 /*
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297 * There are several addresses on this port and one of them
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298 * is the "*:port" wildcard so getsockname() is needed to determine
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299 * the server address.
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300 *
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301 * AcceptEx() already gave this address.
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302 */
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303
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10
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304 #if (NGX_WIN32)
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0
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305 if (c->local_sockaddr) {
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306 r->in_addr =
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307 ((struct sockaddr_in *) c->local_sockaddr)->sin_addr.s_addr;
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308
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28
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309 } else
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0
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310 #endif
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28
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311 {
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0
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312 len = sizeof(struct sockaddr_in);
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28
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313 if (getsockname(c->fd, (struct sockaddr *) &sin, &len) == -1) {
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0
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314 ngx_connection_error(c, ngx_socket_errno,
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315 "getsockname() failed");
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316 ngx_http_close_connection(c);
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317 return;
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318 }
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319
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28
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320 r->in_addr = sin.sin_addr.s_addr;
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0
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321 }
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322
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190
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323 /* the last address is "*" */
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0
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324
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142
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325 for ( /* void */ ; i < hip->naddrs - 1; i++) {
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326 if (hia[i].addr == r->in_addr) {
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0
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327 break;
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328 }
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329 }
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330
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331 } else {
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142
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332 r->in_addr = hia[0].addr;
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0
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333 }
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334
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142
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335 r->virtual_names = hia[i].virtual_names;
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0
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336
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337 /* the default server configuration for the address:port */
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142
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338 cscf = hia[i].core_srv_conf;
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0
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339
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340 r->main_conf = cscf->ctx->main_conf;
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341 r->srv_conf = cscf->ctx->srv_conf;
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342 r->loc_conf = cscf->ctx->loc_conf;
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343
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142
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344 r->server_name = cscf->server_name;
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345
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58
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346 rev->handler = ngx_http_process_request_line;
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0
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347
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348 #if (NGX_HTTP_SSL)
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349
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350 sscf = ngx_http_get_module_srv_conf(r, ngx_http_ssl_module);
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351 if (sscf->enable) {
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352
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353 if (c->ssl == NULL) {
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96
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354 if (ngx_ssl_create_connection(&sscf->ssl, c, NGX_SSL_BUFFER)
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56
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355 == NGX_ERROR)
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0
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356 {
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357 ngx_http_close_connection(c);
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358 return;
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359 }
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360
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58
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361 rev->handler = ngx_http_ssl_handshake;
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0
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362 }
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363
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62
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364 r->main_filter_need_in_memory = 1;
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0
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365 }
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366
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367 #endif
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368
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|
|
369 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
370 c->log->file = clcf->err_log->file;
|
|
|
371 if (!(c->log->log_level & NGX_LOG_DEBUG_CONNECTION)) {
|
|
|
372 c->log->log_level = clcf->err_log->log_level;
|
|
|
373 }
|
|
|
374
|
|
|
375 if (c->buffer == NULL) {
|
|
|
376 c->buffer = ngx_create_temp_buf(c->pool,
|
|
|
377 cscf->client_header_buffer_size);
|
|
|
378 if (c->buffer == NULL) {
|
|
|
379 ngx_http_close_connection(c);
|
|
|
380 return;
|
|
|
381 }
|
|
|
382 }
|
|
|
383
|
|
|
384 if (r->header_in == NULL) {
|
|
|
385 r->header_in = c->buffer;
|
|
|
386 }
|
|
|
387
|
|
50
|
388 r->pool = ngx_create_pool(cscf->request_pool_size, c->log);
|
|
|
389 if (r->pool == NULL) {
|
|
0
|
390 ngx_http_close_connection(c);
|
|
|
391 return;
|
|
|
392 }
|
|
|
393
|
|
|
394
|
|
|
395 if (ngx_list_init(&r->headers_out.headers, r->pool, 20,
|
|
130
|
396 sizeof(ngx_table_elt_t))
|
|
|
397 == NGX_ERROR)
|
|
0
|
398 {
|
|
|
399 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
400 return;
|
|
|
401 }
|
|
|
402
|
|
|
403 r->ctx = ngx_pcalloc(r->pool, sizeof(void *) * ngx_http_max_module);
|
|
|
404 if (r->ctx == NULL) {
|
|
|
405 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
406 return;
|
|
|
407 }
|
|
|
408
|
|
122
|
409 cmcf = ngx_http_get_module_main_conf(r, ngx_http_core_module);
|
|
|
410
|
|
|
411 r->variables = ngx_pcalloc(r->pool, cmcf->variables.nelts
|
|
|
412 * sizeof(ngx_http_variable_value_t));
|
|
|
413 if (r->variables == NULL) {
|
|
|
414 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
415 return;
|
|
|
416 }
|
|
|
417
|
|
0
|
418 c->single_connection = 1;
|
|
132
|
419 c->destroyed = 0;
|
|
|
420
|
|
0
|
421 r->connection = c;
|
|
|
422
|
|
102
|
423 r->main = r;
|
|
|
424
|
|
298
|
425 tp = ngx_timeofday();
|
|
|
426 r->start_sec = tp->sec;
|
|
|
427 r->start_msec = tp->msec;
|
|
46
|
428
|
|
180
|
429 r->method = NGX_HTTP_UNKNOWN;
|
|
|
430
|
|
0
|
431 r->headers_in.content_length_n = -1;
|
|
|
432 r->headers_in.keep_alive_n = -1;
|
|
|
433 r->headers_out.content_length_n = -1;
|
|
|
434 r->headers_out.last_modified_time = -1;
|
|
|
435
|
|
226
|
436 r->uri_changes = NGX_HTTP_MAX_URI_CHANGES + 1;
|
|
|
437 r->subrequests = NGX_HTTP_MAX_SUBREQUESTS + 1;
|
|
|
438
|
|
0
|
439 r->http_state = NGX_HTTP_READING_REQUEST_STATE;
|
|
|
440
|
|
54
|
441 ctx = c->log->data;
|
|
|
442 ctx->request = r;
|
|
214
|
443 ctx->current_request = r;
|
|
58
|
444 r->log_handler = ngx_http_log_error_handler;
|
|
54
|
445
|
|
0
|
446 #if (NGX_STAT_STUB)
|
|
110
|
447 ngx_atomic_fetch_add(ngx_stat_reading, 1);
|
|
26
|
448 r->stat_reading = 1;
|
|
110
|
449 ngx_atomic_fetch_add(ngx_stat_requests, 1);
|
|
0
|
450 #endif
|
|
|
451
|
|
58
|
452 rev->handler(rev);
|
|
0
|
453 }
|
|
|
454
|
|
|
455
|
|
|
456 #if (NGX_HTTP_SSL)
|
|
|
457
|
|
50
|
458 static void
|
|
|
459 ngx_http_ssl_handshake(ngx_event_t *rev)
|
|
0
|
460 {
|
|
10
|
461 u_char buf[1];
|
|
|
462 ssize_t n;
|
|
0
|
463 ngx_int_t rc;
|
|
|
464 ngx_connection_t *c;
|
|
|
465 ngx_http_request_t *r;
|
|
|
466
|
|
|
467 c = rev->data;
|
|
|
468 r = c->data;
|
|
|
469
|
|
|
470 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, rev->log, 0,
|
|
|
471 "http check ssl handshake");
|
|
|
472
|
|
|
473 if (rev->timedout) {
|
|
54
|
474 ngx_log_error(NGX_LOG_INFO, c->log, NGX_ETIMEDOUT, "client timed out");
|
|
|
475 c->timedout = 1;
|
|
|
476 ngx_http_close_request(r, NGX_HTTP_REQUEST_TIME_OUT);
|
|
0
|
477 return;
|
|
|
478 }
|
|
|
479
|
|
132
|
480 n = recv(c->fd, (char *) buf, 1, MSG_PEEK);
|
|
0
|
481
|
|
|
482 if (n == -1 && ngx_socket_errno == NGX_EAGAIN) {
|
|
|
483 return;
|
|
|
484 }
|
|
|
485
|
|
|
486 if (n == 1) {
|
|
|
487 if (buf[0] == 0x80 /* SSLv2 */ || buf[0] == 0x16 /* SSLv3/TLSv1 */) {
|
|
|
488 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, rev->log, 0,
|
|
10
|
489 "https ssl handshake: 0x%02Xd", buf[0]);
|
|
0
|
490
|
|
|
491 rc = ngx_ssl_handshake(c);
|
|
|
492
|
|
96
|
493 if (rc == NGX_AGAIN) {
|
|
|
494 c->ssl->handler = ngx_http_ssl_handshake_handler;
|
|
0
|
495 return;
|
|
|
496 }
|
|
|
497
|
|
96
|
498 ngx_http_ssl_handshake_handler(c);
|
|
|
499
|
|
|
500 return;
|
|
0
|
501
|
|
|
502 } else {
|
|
|
503 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, rev->log, 0,
|
|
|
504 "plain http");
|
|
|
505
|
|
|
506 r->plain_http = 1;
|
|
|
507 }
|
|
|
508 }
|
|
|
509
|
|
58
|
510 rev->handler = ngx_http_process_request_line;
|
|
0
|
511 ngx_http_process_request_line(rev);
|
|
|
512 }
|
|
|
513
|
|
96
|
514
|
|
|
515 static void
|
|
|
516 ngx_http_ssl_handshake_handler(ngx_connection_t *c)
|
|
|
517 {
|
|
|
518 ngx_http_request_t *r;
|
|
|
519
|
|
|
520 if (c->ssl->handshaked) {
|
|
|
521
|
|
|
522 /*
|
|
|
523 * The majority of browsers do not send the "close notify" alert.
|
|
|
524 * Among them are MSIE, old Mozilla, Netscape 4, Konqueror,
|
|
|
525 * and Links. And what is more, MSIE ignores the server's alert.
|
|
|
526 *
|
|
|
527 * Opera and recent Mozilla send the alert.
|
|
|
528 */
|
|
|
529
|
|
|
530 c->ssl->no_wait_shutdown = 1;
|
|
|
531
|
|
|
532 c->read->handler = ngx_http_process_request_line;
|
|
|
533 /* STUB: epoll edge */ c->write->handler = ngx_http_empty_handler;
|
|
|
534
|
|
|
535 ngx_http_process_request_line(c->read);
|
|
|
536
|
|
|
537 return;
|
|
|
538 }
|
|
|
539
|
|
|
540 r = c->data;
|
|
|
541
|
|
|
542 ngx_http_close_request(r, NGX_HTTP_BAD_REQUEST);
|
|
|
543
|
|
|
544 return;
|
|
|
545 }
|
|
|
546
|
|
|
547
|
|
0
|
548 #endif
|
|
|
549
|
|
|
550
|
|
50
|
551 static void
|
|
|
552 ngx_http_process_request_line(ngx_event_t *rev)
|
|
0
|
553 {
|
|
|
554 ssize_t n;
|
|
|
555 ngx_int_t rc, rv;
|
|
|
556 ngx_connection_t *c;
|
|
|
557 ngx_http_request_t *r;
|
|
|
558
|
|
|
559 c = rev->data;
|
|
|
560 r = c->data;
|
|
|
561
|
|
|
562 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, rev->log, 0,
|
|
|
563 "http process request line");
|
|
|
564
|
|
|
565 if (rev->timedout) {
|
|
54
|
566 ngx_log_error(NGX_LOG_INFO, c->log, NGX_ETIMEDOUT, "client timed out");
|
|
|
567 c->timedout = 1;
|
|
|
568 ngx_http_close_request(r, NGX_HTTP_REQUEST_TIME_OUT);
|
|
0
|
569 return;
|
|
|
570 }
|
|
|
571
|
|
|
572 rc = NGX_AGAIN;
|
|
|
573
|
|
|
574 for ( ;; ) {
|
|
|
575
|
|
|
576 if (rc == NGX_AGAIN) {
|
|
|
577 n = ngx_http_read_request_header(r);
|
|
|
578
|
|
|
579 if (n == NGX_AGAIN || n == NGX_ERROR) {
|
|
|
580 return;
|
|
|
581 }
|
|
|
582 }
|
|
|
583
|
|
|
584 rc = ngx_http_parse_request_line(r, r->header_in);
|
|
|
585
|
|
|
586 if (rc == NGX_OK) {
|
|
|
587
|
|
|
588 /* the request line has been parsed successfully */
|
|
|
589
|
|
10
|
590 r->request_line.len = r->request_end - r->request_start;
|
|
|
591 r->request_line.data = r->request_start;
|
|
|
592
|
|
0
|
593
|
|
|
594 if (r->args_start) {
|
|
|
595 r->uri.len = r->args_start - 1 - r->uri_start;
|
|
|
596 } else {
|
|
|
597 r->uri.len = r->uri_end - r->uri_start;
|
|
|
598 }
|
|
|
599
|
|
18
|
600
|
|
2
|
601 if (r->complex_uri || r->quoted_uri) {
|
|
10
|
602
|
|
50
|
603 r->uri.data = ngx_palloc(r->pool, r->uri.len + 1);
|
|
|
604 if (r->uri.data == NULL) {
|
|
10
|
605 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
606 return;
|
|
|
607 }
|
|
|
608
|
|
0
|
609 rc = ngx_http_parse_complex_uri(r);
|
|
|
610
|
|
54
|
611 if (rc == NGX_HTTP_PARSE_INVALID_REQUEST) {
|
|
|
612 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
|
613 "client sent invalid request");
|
|
|
614 ngx_http_finalize_request(r, NGX_HTTP_BAD_REQUEST);
|
|
0
|
615 return;
|
|
|
616 }
|
|
|
617
|
|
|
618 } else {
|
|
10
|
619 r->uri.data = r->uri_start;
|
|
0
|
620 }
|
|
|
621
|
|
18
|
622
|
|
10
|
623 r->unparsed_uri.len = r->uri_end - r->uri_start;
|
|
|
624 r->unparsed_uri.data = r->uri_start;
|
|
|
625
|
|
0
|
626
|
|
58
|
627 r->method_name.len = r->method_end - r->request_start + 1;
|
|
|
628 r->method_name.data = r->request_line.data;
|
|
0
|
629
|
|
10
|
630
|
|
28
|
631 if (r->http_protocol.data) {
|
|
|
632 r->http_protocol.len = r->request_end - r->http_protocol.data;
|
|
|
633 }
|
|
|
634
|
|
|
635
|
|
0
|
636 if (r->uri_ext) {
|
|
|
637 if (r->args_start) {
|
|
|
638 r->exten.len = r->args_start - 1 - r->uri_ext;
|
|
|
639 } else {
|
|
|
640 r->exten.len = r->uri_end - r->uri_ext;
|
|
|
641 }
|
|
|
642
|
|
10
|
643 r->exten.data = r->uri_ext;
|
|
0
|
644 }
|
|
|
645
|
|
10
|
646
|
|
0
|
647 if (r->args_start && r->uri_end > r->args_start) {
|
|
|
648 r->args.len = r->uri_end - r->args_start;
|
|
10
|
649 r->args.data = r->args_start;
|
|
0
|
650 }
|
|
|
651
|
|
10
|
652
|
|
|
653 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
|
654 "http request line: \"%V\"", &r->request_line);
|
|
|
655
|
|
0
|
656 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
10
|
657 "http uri: \"%V\"", &r->uri);
|
|
0
|
658
|
|
|
659 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
10
|
660 "http args: \"%V\"", &r->args);
|
|
0
|
661
|
|
|
662 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
10
|
663 "http exten: \"%V\"", &r->exten);
|
|
|
664
|
|
0
|
665 if (r->http_version < NGX_HTTP_VERSION_10) {
|
|
86
|
666
|
|
|
667 if (rev->timer_set) {
|
|
|
668 ngx_del_timer(rev);
|
|
|
669 }
|
|
|
670
|
|
|
671 #if (NGX_STAT_STUB)
|
|
110
|
672 ngx_atomic_fetch_add(ngx_stat_reading, -1);
|
|
86
|
673 r->stat_reading = 0;
|
|
110
|
674 ngx_atomic_fetch_add(ngx_stat_writing, 1);
|
|
86
|
675 r->stat_writing = 1;
|
|
|
676 #endif
|
|
|
677
|
|
|
678 rev->handler = ngx_http_request_handler;
|
|
|
679 c->write->handler = ngx_http_request_handler;
|
|
58
|
680 r->read_event_handler = ngx_http_block_read;
|
|
86
|
681
|
|
0
|
682 ngx_http_handler(r);
|
|
86
|
683
|
|
0
|
684 return;
|
|
|
685 }
|
|
|
686
|
|
|
687
|
|
|
688 if (ngx_list_init(&r->headers_in.headers, r->pool, 20,
|
|
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
|
|
|
696
|
|
48
|
697 if (ngx_array_init(&r->headers_in.cookies, r->pool, 2,
|
|
130
|
698 sizeof(ngx_table_elt_t *))
|
|
|
699 == NGX_ERROR)
|
|
0
|
700 {
|
|
|
701 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
702 return;
|
|
|
703 }
|
|
|
704
|
|
32
|
705 c->log->action = "reading client request headers";
|
|
0
|
706
|
|
58
|
707 rev->handler = ngx_http_process_request_headers;
|
|
0
|
708 ngx_http_process_request_headers(rev);
|
|
|
709
|
|
|
710 return;
|
|
54
|
711 }
|
|
|
712
|
|
|
713 if (rc != NGX_AGAIN) {
|
|
0
|
714
|
|
|
715 /* there was error while a request line parsing */
|
|
|
716
|
|
54
|
717 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
|
718 ngx_http_client_errors[rc - NGX_HTTP_CLIENT_ERROR]);
|
|
|
719 ngx_http_finalize_request(r, NGX_HTTP_BAD_REQUEST);
|
|
0
|
720 return;
|
|
|
721 }
|
|
|
722
|
|
|
723 /* NGX_AGAIN: a request line parsing is still incomplete */
|
|
|
724
|
|
|
725 if (r->header_in->pos == r->header_in->end) {
|
|
|
726
|
|
|
727 rv = ngx_http_alloc_large_header_buffer(r, 1);
|
|
|
728
|
|
|
729 if (rv == NGX_ERROR) {
|
|
|
730 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
731 return;
|
|
|
732 }
|
|
|
733
|
|
|
734 if (rv == NGX_DECLINED) {
|
|
54
|
735 r->request_line.len = r->header_in->end - r->request_start;
|
|
|
736 r->request_line.data = r->request_start;
|
|
|
737
|
|
|
738 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
|
739 "client sent too long URI");
|
|
|
740 ngx_http_finalize_request(r, NGX_HTTP_REQUEST_URI_TOO_LARGE);
|
|
0
|
741 return;
|
|
|
742 }
|
|
|
743 }
|
|
|
744 }
|
|
|
745 }
|
|
|
746
|
|
|
747
|
|
50
|
748 static void
|
|
|
749 ngx_http_process_request_headers(ngx_event_t *rev)
|
|
0
|
750 {
|
|
56
|
751 ssize_t n;
|
|
|
752 ngx_int_t rc, rv;
|
|
|
753 ngx_str_t header;
|
|
198
|
754 ngx_uint_t i;
|
|
58
|
755 ngx_table_elt_t *h;
|
|
56
|
756 ngx_connection_t *c;
|
|
|
757 ngx_http_header_t *hh;
|
|
|
758 ngx_http_request_t *r;
|
|
60
|
759 ngx_http_core_srv_conf_t *cscf;
|
|
56
|
760 ngx_http_core_main_conf_t *cmcf;
|
|
0
|
761
|
|
|
762 c = rev->data;
|
|
|
763 r = c->data;
|
|
|
764
|
|
|
765 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, rev->log, 0,
|
|
|
766 "http process request header line");
|
|
|
767
|
|
|
768 if (rev->timedout) {
|
|
54
|
769 ngx_log_error(NGX_LOG_INFO, c->log, NGX_ETIMEDOUT, "client timed out");
|
|
|
770 c->timedout = 1;
|
|
|
771 ngx_http_close_request(r, NGX_HTTP_REQUEST_TIME_OUT);
|
|
0
|
772 return;
|
|
|
773 }
|
|
|
774
|
|
56
|
775 cmcf = ngx_http_get_module_main_conf(r, ngx_http_core_module);
|
|
60
|
776 cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
|
|
56
|
777
|
|
0
|
778 rc = NGX_AGAIN;
|
|
|
779
|
|
|
780 for ( ;; ) {
|
|
|
781
|
|
|
782 if (rc == NGX_AGAIN) {
|
|
|
783
|
|
|
784 if (r->header_in->pos == r->header_in->end) {
|
|
|
785
|
|
|
786 rv = ngx_http_alloc_large_header_buffer(r, 0);
|
|
|
787
|
|
|
788 if (rv == NGX_ERROR) {
|
|
|
789 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
790 return;
|
|
|
791 }
|
|
|
792
|
|
|
793 if (rv == NGX_DECLINED) {
|
|
54
|
794 header.len = r->header_in->end - r->header_name_start;
|
|
|
795 header.data = r->header_name_start;
|
|
80
|
796
|
|
|
797 if (header.len > NGX_MAX_ERROR_STR - 300) {
|
|
|
798 header.len = NGX_MAX_ERROR_STR - 300;
|
|
|
799 header.data[header.len++] = '.';
|
|
|
800 header.data[header.len++] = '.';
|
|
|
801 header.data[header.len++] = '.';
|
|
|
802 }
|
|
|
803
|
|
54
|
804 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
|
805 "client sent too long header line: \"%V\"",
|
|
|
806 &header);
|
|
|
807 ngx_http_close_request(r, NGX_HTTP_BAD_REQUEST);
|
|
0
|
808 return;
|
|
|
809 }
|
|
|
810 }
|
|
|
811
|
|
|
812 n = ngx_http_read_request_header(r);
|
|
|
813
|
|
|
814 if (n == NGX_AGAIN || n == NGX_ERROR) {
|
|
|
815 return;
|
|
|
816 }
|
|
|
817 }
|
|
|
818
|
|
|
819 rc = ngx_http_parse_header_line(r, r->header_in);
|
|
|
820
|
|
|
821 if (rc == NGX_OK) {
|
|
|
822
|
|
60
|
823 if (r->invalid_header && cscf->ignore_invalid_headers) {
|
|
52
|
824
|
|
|
825 /* there was error while a header line parsing */
|
|
|
826
|
|
|
827 header.len = r->header_end - r->header_name_start;
|
|
|
828 header.data = r->header_name_start;
|
|
|
829
|
|
54
|
830 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
|
831 "client sent invalid header line: \"%V\"",
|
|
52
|
832 &header);
|
|
|
833 continue;
|
|
|
834 }
|
|
|
835
|
|
0
|
836 /* a header line has been parsed successfully */
|
|
|
837
|
|
50
|
838 h = ngx_list_push(&r->headers_in.headers);
|
|
|
839 if (h == NULL) {
|
|
0
|
840 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
841 return;
|
|
|
842 }
|
|
|
843
|
|
56
|
844 h->hash = r->header_hash;
|
|
|
845
|
|
0
|
846 h->key.len = r->header_name_end - r->header_name_start;
|
|
|
847 h->key.data = r->header_name_start;
|
|
|
848 h->key.data[h->key.len] = '\0';
|
|
|
849
|
|
|
850 h->value.len = r->header_end - r->header_start;
|
|
|
851 h->value.data = r->header_start;
|
|
|
852 h->value.data[h->value.len] = '\0';
|
|
|
853
|
|
198
|
854 h->lowcase_key = ngx_palloc(r->pool, h->key.len);
|
|
|
855 if (h->lowcase_key == NULL) {
|
|
|
856 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
857 return;
|
|
|
858 }
|
|
|
859
|
|
|
860 if (h->key.len == r->lowcase_index) {
|
|
|
861 ngx_memcpy(h->lowcase_key, r->lowcase_header, h->key.len);
|
|
|
862
|
|
|
863 } else {
|
|
|
864 for (i = 0; i < h->key.len; i++) {
|
|
216
|
865 h->lowcase_key[i] = ngx_tolower(h->key.data[i]);
|
|
0
|
866 }
|
|
|
867 }
|
|
|
868
|
|
198
|
869 hh = ngx_hash_find(&cmcf->headers_in_hash, h->hash,
|
|
|
870 h->lowcase_key, h->key.len);
|
|
|
871
|
|
|
872 if (hh && hh->handler(r, h, hh->offset) != NGX_OK) {
|
|
|
873 return;
|
|
|
874 }
|
|
|
875
|
|
0
|
876 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
10
|
877 "http header: \"%V: %V\"",
|
|
|
878 &h->key, &h->value);
|
|
0
|
879
|
|
|
880 continue;
|
|
54
|
881 }
|
|
|
882
|
|
|
883 if (rc == NGX_HTTP_PARSE_HEADER_DONE) {
|
|
0
|
884
|
|
|
885 /* a whole header has been parsed successfully */
|
|
|
886
|
|
|
887 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
888 "http header done");
|
|
|
889
|
|
24
|
890 r->request_length += r->header_in->pos - r->header_in->start;
|
|
|
891
|
|
0
|
892 r->http_state = NGX_HTTP_PROCESS_REQUEST_STATE;
|
|
|
893
|
|
|
894 rc = ngx_http_process_request_header(r);
|
|
|
895
|
|
|
896 if (rc != NGX_OK) {
|
|
|
897 return;
|
|
|
898 }
|
|
|
899
|
|
|
900 if (rev->timer_set) {
|
|
|
901 ngx_del_timer(rev);
|
|
|
902 }
|
|
|
903
|
|
|
904 #if (NGX_STAT_STUB)
|
|
110
|
905 ngx_atomic_fetch_add(ngx_stat_reading, -1);
|
|
0
|
906 r->stat_reading = 0;
|
|
110
|
907 ngx_atomic_fetch_add(ngx_stat_writing, 1);
|
|
0
|
908 r->stat_writing = 1;
|
|
|
909 #endif
|
|
|
910
|
|
58
|
911 rev->handler = ngx_http_request_handler;
|
|
|
912 c->write->handler = ngx_http_request_handler;
|
|
|
913 r->read_event_handler = ngx_http_block_read;
|
|
|
914
|
|
0
|
915 ngx_http_handler(r);
|
|
86
|
916
|
|
0
|
917 return;
|
|
54
|
918 }
|
|
|
919
|
|
|
920 if (rc == NGX_AGAIN) {
|
|
|
921
|
|
|
922 /* a header line parsing is still not complete */
|
|
|
923
|
|
|
924 continue;
|
|
0
|
925 }
|
|
|
926
|
|
54
|
927 /* rc == NGX_HTTP_PARSE_INVALID_HEADER: "\r" is not followed by "\n" */
|
|
|
928
|
|
|
929 header.len = r->header_end - r->header_name_start;
|
|
|
930 header.data = r->header_name_start;
|
|
|
931 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
|
932 "client sent invalid header line: \"%V\\r...\"",
|
|
|
933 &header);
|
|
|
934 ngx_http_close_request(r, NGX_HTTP_BAD_REQUEST);
|
|
|
935 return;
|
|
0
|
936 }
|
|
|
937 }
|
|
|
938
|
|
|
939
|
|
50
|
940 static ssize_t
|
|
|
941 ngx_http_read_request_header(ngx_http_request_t *r)
|
|
0
|
942 {
|
|
|
943 ssize_t n;
|
|
|
944 ngx_event_t *rev;
|
|
230
|
945 ngx_connection_t *c;
|
|
0
|
946 ngx_http_core_srv_conf_t *cscf;
|
|
|
947
|
|
230
|
948 c = r->connection;
|
|
|
949 rev = c->read;
|
|
0
|
950
|
|
|
951 n = r->header_in->last - r->header_in->pos;
|
|
|
952
|
|
|
953 if (n > 0) {
|
|
|
954 return n;
|
|
|
955 }
|
|
|
956
|
|
72
|
957 if (rev->ready) {
|
|
230
|
958 n = c->recv(c, r->header_in->last,
|
|
|
959 r->header_in->end - r->header_in->last);
|
|
72
|
960 } else {
|
|
|
961 n = NGX_AGAIN;
|
|
0
|
962 }
|
|
|
963
|
|
|
964 if (n == NGX_AGAIN) {
|
|
|
965 if (!r->header_timeout_set) {
|
|
|
966 cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
|
|
|
967 ngx_add_timer(rev, cscf->client_header_timeout);
|
|
|
968 r->header_timeout_set = 1;
|
|
|
969 }
|
|
|
970
|
|
|
971 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) {
|
|
|
972 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
973 return NGX_ERROR;
|
|
|
974 }
|
|
|
975
|
|
|
976 return NGX_AGAIN;
|
|
|
977 }
|
|
|
978
|
|
|
979 if (n == 0) {
|
|
230
|
980 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
0
|
981 "client closed prematurely connection");
|
|
|
982 }
|
|
|
983
|
|
|
984 if (n == 0 || n == NGX_ERROR) {
|
|
272
|
985 c->error = 1;
|
|
|
986 c->log->action = "reading client request headers";
|
|
|
987
|
|
|
988 ngx_http_finalize_request(r, NGX_HTTP_BAD_REQUEST);
|
|
0
|
989 return NGX_ERROR;
|
|
|
990 }
|
|
|
991
|
|
|
992 r->header_in->last += n;
|
|
|
993
|
|
|
994 return n;
|
|
|
995 }
|
|
|
996
|
|
|
997
|
|
50
|
998 static ngx_int_t
|
|
|
999 ngx_http_alloc_large_header_buffer(ngx_http_request_t *r,
|
|
|
1000 ngx_uint_t request_line)
|
|
0
|
1001 {
|
|
|
1002 u_char *old, *new;
|
|
|
1003 ngx_buf_t *b;
|
|
|
1004 ngx_http_connection_t *hc;
|
|
|
1005 ngx_http_core_srv_conf_t *cscf;
|
|
|
1006
|
|
|
1007 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1008 "http alloc large header buffer");
|
|
|
1009
|
|
|
1010 if (request_line && r->state == 0) {
|
|
|
1011
|
|
|
1012 /* the client fills up the buffer with "\r\n" */
|
|
|
1013
|
|
24
|
1014 r->request_length += r->header_in->end - r->header_in->start;
|
|
|
1015
|
|
0
|
1016 r->header_in->pos = r->header_in->start;
|
|
|
1017 r->header_in->last = r->header_in->start;
|
|
|
1018
|
|
|
1019 return NGX_OK;
|
|
|
1020 }
|
|
|
1021
|
|
|
1022 old = request_line ? r->request_start : r->header_name_start;
|
|
|
1023
|
|
|
1024 cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
|
|
|
1025
|
|
|
1026 if (r->state != 0
|
|
|
1027 && (size_t) (r->header_in->pos - old)
|
|
|
1028 >= cscf->large_client_header_buffers.size)
|
|
|
1029 {
|
|
|
1030 return NGX_DECLINED;
|
|
|
1031 }
|
|
|
1032
|
|
|
1033 hc = r->http_connection;
|
|
|
1034
|
|
|
1035 if (hc->nfree) {
|
|
|
1036 b = hc->free[--hc->nfree];
|
|
|
1037
|
|
|
1038 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
10
|
1039 "http large header free: %p %uz",
|
|
0
|
1040 b->pos, b->end - b->last);
|
|
|
1041
|
|
|
1042 } else if (hc->nbusy < cscf->large_client_header_buffers.num) {
|
|
|
1043
|
|
|
1044 if (hc->busy == NULL) {
|
|
|
1045 hc->busy = ngx_palloc(r->connection->pool,
|
|
|
1046 cscf->large_client_header_buffers.num * sizeof(ngx_buf_t *));
|
|
|
1047 if (hc->busy == NULL) {
|
|
|
1048 return NGX_ERROR;
|
|
|
1049 }
|
|
|
1050 }
|
|
|
1051
|
|
|
1052 b = ngx_create_temp_buf(r->connection->pool,
|
|
|
1053 cscf->large_client_header_buffers.size);
|
|
|
1054 if (b == NULL) {
|
|
|
1055 return NGX_ERROR;
|
|
|
1056 }
|
|
|
1057
|
|
|
1058 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
10
|
1059 "http large header alloc: %p %uz",
|
|
0
|
1060 b->pos, b->end - b->last);
|
|
|
1061
|
|
|
1062 } else {
|
|
|
1063 return NGX_DECLINED;
|
|
|
1064 }
|
|
|
1065
|
|
|
1066 hc->busy[hc->nbusy++] = b;
|
|
|
1067
|
|
|
1068 if (r->state == 0) {
|
|
|
1069 /*
|
|
|
1070 * r->state == 0 means that a header line was parsed successfully
|
|
|
1071 * and we do not need to copy incomplete header line and
|
|
|
1072 * to relocate the parser header pointers
|
|
|
1073 */
|
|
|
1074
|
|
24
|
1075 r->request_length += r->header_in->end - r->header_in->start;
|
|
|
1076
|
|
0
|
1077 r->header_in = b;
|
|
|
1078
|
|
|
1079 return NGX_OK;
|
|
|
1080 }
|
|
|
1081
|
|
|
1082 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1083 "http large header copy: %d", r->header_in->pos - old);
|
|
|
1084
|
|
24
|
1085 r->request_length += old - r->header_in->start;
|
|
|
1086
|
|
0
|
1087 new = b->start;
|
|
|
1088
|
|
|
1089 ngx_memcpy(new, old, r->header_in->pos - old);
|
|
|
1090
|
|
|
1091 b->pos = new + (r->header_in->pos - old);
|
|
|
1092 b->last = new + (r->header_in->pos - old);
|
|
|
1093
|
|
|
1094 if (request_line) {
|
|
|
1095 r->request_start = new;
|
|
|
1096
|
|
|
1097 if (r->request_end) {
|
|
|
1098 r->request_end = new + (r->request_end - old);
|
|
|
1099 }
|
|
|
1100
|
|
|
1101 r->method_end = new + (r->method_end - old);
|
|
|
1102
|
|
|
1103 r->uri_start = new + (r->uri_start - old);
|
|
|
1104 r->uri_end = new + (r->uri_end - old);
|
|
|
1105
|
|
|
1106 if (r->schema_start) {
|
|
|
1107 r->schema_start = new + (r->schema_start - old);
|
|
|
1108 r->schema_end = new + (r->schema_end - old);
|
|
|
1109 }
|
|
|
1110
|
|
|
1111 if (r->host_start) {
|
|
|
1112 r->host_start = new + (r->host_start - old);
|
|
270
|
1113 if (r->host_end) {
|
|
|
1114 r->host_end = new + (r->host_end - old);
|
|
|
1115 }
|
|
0
|
1116 }
|
|
|
1117
|
|
|
1118 if (r->port_start) {
|
|
|
1119 r->port_start = new + (r->port_start - old);
|
|
|
1120 r->port_end = new + (r->port_end - old);
|
|
|
1121 }
|
|
|
1122
|
|
|
1123 if (r->uri_ext) {
|
|
|
1124 r->uri_ext = new + (r->uri_ext - old);
|
|
|
1125 }
|
|
|
1126
|
|
|
1127 if (r->args_start) {
|
|
|
1128 r->args_start = new + (r->args_start - old);
|
|
|
1129 }
|
|
|
1130
|
|
|
1131 } else {
|
|
|
1132 r->header_name_start = new;
|
|
|
1133 r->header_name_end = new + (r->header_name_end - old);
|
|
|
1134 r->header_start = new + (r->header_start - old);
|
|
|
1135 r->header_end = new + (r->header_end - old);
|
|
|
1136 }
|
|
|
1137
|
|
|
1138 r->header_in = b;
|
|
|
1139
|
|
|
1140 return NGX_OK;
|
|
|
1141 }
|
|
|
1142
|
|
|
1143
|
|
50
|
1144 static ngx_int_t
|
|
58
|
1145 ngx_http_process_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 }
|
|
|
1155
|
|
|
1156 return NGX_OK;
|
|
|
1157 }
|
|
|
1158
|
|
|
1159
|
|
|
1160 static ngx_int_t
|
|
72
|
1161 ngx_http_process_unique_header_line(ngx_http_request_t *r, ngx_table_elt_t *h,
|
|
|
1162 ngx_uint_t offset)
|
|
|
1163 {
|
|
|
1164 ngx_table_elt_t **ph;
|
|
|
1165
|
|
|
1166 ph = (ngx_table_elt_t **) ((char *) &r->headers_in + offset);
|
|
|
1167
|
|
|
1168 if (*ph == NULL) {
|
|
|
1169 *ph = h;
|
|
|
1170 return NGX_OK;
|
|
|
1171 }
|
|
|
1172
|
|
|
1173 ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
|
|
230
|
1174 "client sent duplicate header line: \"%V: %V\", "
|
|
|
1175 "previous value: \"%V: %V\"",
|
|
|
1176 &h->key, &h->value, &(*ph)->key, &(*ph)->value);
|
|
72
|
1177
|
|
|
1178 ngx_http_finalize_request(r, NGX_HTTP_BAD_REQUEST);
|
|
|
1179
|
|
|
1180 return NGX_ERROR;
|
|
|
1181 }
|
|
|
1182
|
|
|
1183
|
|
|
1184 static ngx_int_t
|
|
58
|
1185 ngx_http_process_cookie(ngx_http_request_t *r, ngx_table_elt_t *h,
|
|
|
1186 ngx_uint_t offset)
|
|
|
1187 {
|
|
|
1188 ngx_table_elt_t **cookie;
|
|
|
1189
|
|
|
1190 cookie = ngx_array_push(&r->headers_in.cookies);
|
|
72
|
1191 if (cookie) {
|
|
|
1192 *cookie = h;
|
|
|
1193 return NGX_OK;
|
|
58
|
1194 }
|
|
|
1195
|
|
72
|
1196 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
1197
|
|
|
1198 return NGX_ERROR;
|
|
58
|
1199 }
|
|
|
1200
|
|
|
1201
|
|
|
1202 static ngx_int_t
|
|
50
|
1203 ngx_http_process_request_header(ngx_http_request_t *r)
|
|
0
|
1204 {
|
|
196
|
1205 size_t len;
|
|
|
1206 u_char *ua, *user_agent, ch;
|
|
198
|
1207 ngx_uint_t hash;
|
|
196
|
1208 #if (NGX_HTTP_SSL)
|
|
|
1209 long rc;
|
|
|
1210 ngx_http_ssl_srv_conf_t *sscf;
|
|
|
1211 #endif
|
|
0
|
1212
|
|
|
1213 if (r->headers_in.host) {
|
|
198
|
1214
|
|
|
1215 hash = 0;
|
|
|
1216
|
|
0
|
1217 for (len = 0; len < r->headers_in.host->value.len; len++) {
|
|
26
|
1218 ch = r->headers_in.host->value.data[len];
|
|
|
1219
|
|
|
1220 if (ch == ':') {
|
|
0
|
1221 break;
|
|
|
1222 }
|
|
26
|
1223
|
|
198
|
1224 ch = ngx_tolower(ch);
|
|
|
1225 r->headers_in.host->value.data[len] = ch;
|
|
|
1226 hash = ngx_hash(hash, ch);
|
|
0
|
1227 }
|
|
54
|
1228
|
|
198
|
1229 if (len && r->headers_in.host->value.data[len - 1] == '.') {
|
|
58
|
1230 len--;
|
|
198
|
1231 hash = ngx_hash_key(r->headers_in.host->value.data, len);
|
|
58
|
1232 }
|
|
|
1233
|
|
0
|
1234 r->headers_in.host_name_len = len;
|
|
|
1235
|
|
198
|
1236 if (r->virtual_names) {
|
|
|
1237 ngx_http_find_virtual_server(r, r->virtual_names, hash);
|
|
|
1238 }
|
|
0
|
1239
|
|
|
1240 } else {
|
|
|
1241 if (r->http_version > NGX_HTTP_VERSION_10) {
|
|
54
|
1242 ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
|
|
|
1243 "client sent HTTP/1.1 request without \"Host\" header");
|
|
|
1244 ngx_http_finalize_request(r, NGX_HTTP_BAD_REQUEST);
|
|
|
1245 return NGX_ERROR;
|
|
0
|
1246 }
|
|
54
|
1247
|
|
0
|
1248 r->headers_in.host_name_len = 0;
|
|
|
1249 }
|
|
|
1250
|
|
|
1251 if (r->headers_in.content_length) {
|
|
|
1252 r->headers_in.content_length_n =
|
|
212
|
1253 ngx_atoof(r->headers_in.content_length->value.data,
|
|
0
|
1254 r->headers_in.content_length->value.len);
|
|
|
1255
|
|
|
1256 if (r->headers_in.content_length_n == NGX_ERROR) {
|
|
54
|
1257 ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
|
|
|
1258 "client sent invalid \"Content-Length\" header");
|
|
130
|
1259 ngx_http_finalize_request(r, NGX_HTTP_LENGTH_REQUIRED);
|
|
54
|
1260 return NGX_ERROR;
|
|
0
|
1261 }
|
|
|
1262 }
|
|
|
1263
|
|
188
|
1264 if (r->method & (NGX_HTTP_POST|NGX_HTTP_PUT)
|
|
|
1265 && r->headers_in.content_length_n == -1)
|
|
|
1266 {
|
|
54
|
1267 ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
|
|
|
1268 "client sent POST method without \"Content-Length\" header");
|
|
130
|
1269 ngx_http_finalize_request(r, NGX_HTTP_LENGTH_REQUIRED);
|
|
|
1270 return NGX_ERROR;
|
|
|
1271 }
|
|
|
1272
|
|
294
|
1273 if (r->method & (NGX_HTTP_TRACE)) {
|
|
|
1274 ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
|
|
|
1275 "client sent TRACE method");
|
|
|
1276 ngx_http_finalize_request(r, NGX_HTTP_NOT_ALLOWED);
|
|
|
1277 return NGX_ERROR;
|
|
|
1278 }
|
|
|
1279
|
|
130
|
1280 if (r->headers_in.transfer_encoding
|
|
|
1281 && ngx_strstr(r->headers_in.transfer_encoding->value.data, "chunked"))
|
|
|
1282 {
|
|
|
1283 ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
|
|
|
1284 "client sent \"Transfer-Encoding: chunked\" header");
|
|
|
1285 ngx_http_finalize_request(r, NGX_HTTP_LENGTH_REQUIRED);
|
|
54
|
1286 return NGX_ERROR;
|
|
0
|
1287 }
|
|
|
1288
|
|
|
1289 if (r->plain_http) {
|
|
54
|
1290 ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
|
|
|
1291 "client sent plain HTTP request to HTTPS port");
|
|
|
1292 ngx_http_finalize_request(r, NGX_HTTP_TO_HTTPS);
|
|
|
1293 return NGX_ERROR;
|
|
0
|
1294 }
|
|
|
1295
|
|
|
1296 if (r->headers_in.connection) {
|
|
|
1297 if (r->headers_in.connection->value.len == 5
|
|
286
|
1298 && ngx_strcasecmp(r->headers_in.connection->value.data,
|
|
|
1299 (u_char *) "close")
|
|
58
|
1300 == 0)
|
|
0
|
1301 {
|
|
|
1302 r->headers_in.connection_type = NGX_HTTP_CONNECTION_CLOSE;
|
|
|
1303
|
|
|
1304 } else if (r->headers_in.connection->value.len == 10
|
|
|
1305 && ngx_strcasecmp(r->headers_in.connection->value.data,
|
|
286
|
1306 (u_char *) "keep-alive")
|
|
|
1307 == 0)
|
|
0
|
1308 {
|
|
|
1309 r->headers_in.connection_type = NGX_HTTP_CONNECTION_KEEP_ALIVE;
|
|
|
1310
|
|
|
1311 if (r->headers_in.keep_alive) {
|
|
|
1312 r->headers_in.keep_alive_n =
|
|
50
|
1313 ngx_atotm(r->headers_in.keep_alive->value.data,
|
|
0
|
1314 r->headers_in.keep_alive->value.len);
|
|
|
1315 }
|
|
|
1316 }
|
|
|
1317 }
|
|
|
1318
|
|
|
1319 if (r->headers_in.user_agent) {
|
|
|
1320
|
|
|
1321 /*
|
|
|
1322 * check some widespread browsers while the headers are still
|
|
|
1323 * in CPU cache
|
|
|
1324 */
|
|
|
1325
|
|
|
1326 user_agent = r->headers_in.user_agent->value.data;
|
|
|
1327
|
|
|
1328 ua = (u_char *) ngx_strstr(user_agent, "MSIE");
|
|
|
1329
|
|
|
1330 if (ua && ua + 8 < user_agent + r->headers_in.user_agent->value.len) {
|
|
|
1331
|
|
|
1332 r->headers_in.msie = 1;
|
|
|
1333
|
|
|
1334 if (ua[4] == ' ' && ua[5] == '4' && ua[6] == '.') {
|
|
|
1335 r->headers_in.msie4 = 1;
|
|
|
1336 }
|
|
|
1337
|
|
|
1338 #if 0
|
|
|
1339 /* MSIE ignores the SSL "close notify" alert */
|
|
22
|
1340 if (c->ssl) {
|
|
96
|
1341 c->ssl->no_send_shutdown = 1;
|
|
22
|
1342 }
|
|
0
|
1343 #endif
|
|
|
1344 }
|
|
|
1345
|
|
|
1346 if (ngx_strstr(user_agent, "Opera")) {
|
|
|
1347 r->headers_in.opera = 1;
|
|
|
1348 r->headers_in.msie = 0;
|
|
|
1349 r->headers_in.msie4 = 0;
|
|
|
1350 }
|
|
|
1351
|
|
|
1352 if (!r->headers_in.msie && !r->headers_in.opera) {
|
|
|
1353
|
|
|
1354 if (ngx_strstr(user_agent, "Gecko/")) {
|
|
|
1355 r->headers_in.gecko = 1;
|
|
|
1356
|
|
|
1357 } else if (ngx_strstr(user_agent, "Konqueror")) {
|
|
|
1358 r->headers_in.konqueror = 1;
|
|
|
1359 }
|
|
|
1360 }
|
|
|
1361 }
|
|
|
1362
|
|
218
|
1363 #if (NGX_HTTP_SSL)
|
|
|
1364
|
|
|
1365 if (r->connection->ssl) {
|
|
|
1366 sscf = ngx_http_get_module_srv_conf(r, ngx_http_ssl_module);
|
|
|
1367
|
|
|
1368 if (sscf->verify) {
|
|
|
1369 rc = SSL_get_verify_result(r->connection->ssl->connection);
|
|
|
1370
|
|
|
1371 if (rc != X509_V_OK) {
|
|
|
1372 ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
|
|
220
|
1373 "client SSL certificate verify error: (%l:%s)",
|
|
218
|
1374 rc, X509_verify_cert_error_string(rc));
|
|
|
1375 ngx_http_finalize_request(r, NGX_HTTPS_CERT_ERROR);
|
|
|
1376 return NGX_ERROR;
|
|
|
1377 }
|
|
|
1378
|
|
|
1379 if (SSL_get_peer_certificate(r->connection->ssl->connection)
|
|
|
1380 == NULL)
|
|
|
1381 {
|
|
|
1382 ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
|
|
|
1383 "client sent no required SSL certificate");
|
|
|
1384 ngx_http_finalize_request(r, NGX_HTTPS_NO_CERT);
|
|
|
1385 return NGX_ERROR;
|
|
|
1386 }
|
|
|
1387 }
|
|
|
1388 }
|
|
|
1389
|
|
|
1390 #endif
|
|
|
1391
|
|
0
|
1392 return NGX_OK;
|
|
|
1393 }
|
|
|
1394
|
|
|
1395
|
|
162
|
1396 static void
|
|
198
|
1397 ngx_http_find_virtual_server(ngx_http_request_t *r,
|
|
|
1398 ngx_http_virtual_names_t *vn, ngx_uint_t hash)
|
|
26
|
1399 {
|
|
142
|
1400 size_t len;
|
|
|
1401 u_char *host;
|
|
|
1402 ngx_http_core_loc_conf_t *clcf;
|
|
|
1403 ngx_http_core_srv_conf_t *cscf;
|
|
|
1404
|
|
258
|
1405 host = r->host_start;
|
|
|
1406
|
|
|
1407 if (host == NULL) {
|
|
|
1408 host = r->headers_in.host->value.data;
|
|
|
1409 len = r->headers_in.host_name_len;
|
|
|
1410
|
|
|
1411 } else {
|
|
|
1412 len = r->host_end - host;
|
|
|
1413 }
|
|
142
|
1414
|
|
|
1415 if (vn->hash.buckets) {
|
|
198
|
1416 cscf = ngx_hash_find(&vn->hash, hash, host, len);
|
|
142
|
1417 if (cscf) {
|
|
58
|
1418 goto found;
|
|
26
|
1419 }
|
|
|
1420 }
|
|
|
1421
|
|
142
|
1422 if (vn->dns_wildcards && vn->dns_wildcards->hash.buckets) {
|
|
|
1423 cscf = ngx_hash_find_wildcard(vn->dns_wildcards, host, len);
|
|
|
1424
|
|
|
1425 if (cscf) {
|
|
|
1426 goto found;
|
|
26
|
1427 }
|
|
|
1428 }
|
|
|
1429
|
|
212
|
1430 cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
|
|
|
1431
|
|
|
1432 if (cscf->wildcard) {
|
|
|
1433 r->server_name.len = len;
|
|
|
1434 r->server_name.data = host;
|
|
|
1435 }
|
|
|
1436
|
|
162
|
1437 return;
|
|
58
|
1438
|
|
|
1439 found:
|
|
|
1440
|
|
142
|
1441 r->server_name.len = len;
|
|
|
1442 r->server_name.data = host;
|
|
|
1443
|
|
|
1444 r->srv_conf = cscf->ctx->srv_conf;
|
|
|
1445 r->loc_conf = cscf->ctx->loc_conf;
|
|
58
|
1446
|
|
|
1447 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
1448 r->connection->log->file = clcf->err_log->file;
|
|
|
1449
|
|
|
1450 if (!(r->connection->log->log_level & NGX_LOG_DEBUG_CONNECTION)) {
|
|
|
1451 r->connection->log->log_level = clcf->err_log->log_level;
|
|
26
|
1452 }
|
|
|
1453
|
|
162
|
1454 return;
|
|
26
|
1455 }
|
|
|
1456
|
|
|
1457
|
|
58
|
1458 static void
|
|
|
1459 ngx_http_request_handler(ngx_event_t *ev)
|
|
|
1460 {
|
|
|
1461 ngx_connection_t *c;
|
|
|
1462 ngx_http_request_t *r;
|
|
214
|
1463 ngx_http_log_ctx_t *ctx;
|
|
58
|
1464
|
|
|
1465 c = ev->data;
|
|
|
1466 r = c->data;
|
|
|
1467
|
|
214
|
1468 ctx = c->log->data;
|
|
|
1469 ctx->current_request = r;
|
|
|
1470
|
|
58
|
1471 if (ev->write) {
|
|
|
1472 r->write_event_handler(r);
|
|
|
1473
|
|
|
1474 } else {
|
|
|
1475 r->read_event_handler(r);
|
|
|
1476 }
|
|
|
1477 }
|
|
|
1478
|
|
|
1479
|
|
50
|
1480 void
|
|
58
|
1481 ngx_http_finalize_request(ngx_http_request_t *r, ngx_int_t rc)
|
|
0
|
1482 {
|
|
58
|
1483 ngx_http_request_t *pr;
|
|
214
|
1484 ngx_http_log_ctx_t *ctx;
|
|
0
|
1485 ngx_http_core_loc_conf_t *clcf;
|
|
|
1486
|
|
58
|
1487 if (rc == NGX_DONE) {
|
|
118
|
1488 /* the request pool may be already destroyed */
|
|
58
|
1489 return;
|
|
|
1490 }
|
|
|
1491
|
|
132
|
1492 ngx_log_debug3(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1493 "http finalize request: %d, \"%V?%V\"",
|
|
|
1494 rc, &r->uri, &r->args);
|
|
|
1495
|
|
230
|
1496 if (rc == NGX_DECLINED) {
|
|
|
1497 r->content_handler = NULL;
|
|
|
1498 r->write_event_handler = ngx_http_core_run_phases;
|
|
|
1499 ngx_http_core_run_phases(r);
|
|
|
1500 return;
|
|
|
1501 }
|
|
|
1502
|
|
248
|
1503 if (r != r->main && r->post_subrequest) {
|
|
|
1504 rc = r->post_subrequest->handler(r, r->post_subrequest->data, rc);
|
|
216
|
1505 }
|
|
|
1506
|
|
162
|
1507 if (rc == NGX_ERROR
|
|
|
1508 || rc == NGX_HTTP_REQUEST_TIME_OUT
|
|
|
1509 || r->connection->error)
|
|
|
1510 {
|
|
282
|
1511 if (rc > 0 && r->headers_out.status == 0) {
|
|
|
1512 r->headers_out.status = rc;
|
|
190
|
1513 }
|
|
|
1514
|
|
162
|
1515 if (ngx_http_post_action(r) == NGX_OK) {
|
|
|
1516 return;
|
|
|
1517 }
|
|
|
1518
|
|
118
|
1519 ngx_http_close_request(r, 0);
|
|
0
|
1520 return;
|
|
|
1521 }
|
|
|
1522
|
|
186
|
1523 if (rc >= NGX_HTTP_SPECIAL_RESPONSE
|
|
|
1524 || rc == NGX_HTTP_CREATED
|
|
|
1525 || rc == NGX_HTTP_NO_CONTENT)
|
|
|
1526 {
|
|
136
|
1527 if (rc == NGX_HTTP_CLOSE) {
|
|
|
1528 ngx_http_close_request(r, rc);
|
|
|
1529 return;
|
|
|
1530 }
|
|
|
1531
|
|
146
|
1532 if (r == r->main) {
|
|
118
|
1533 if (r->connection->read->timer_set) {
|
|
|
1534 ngx_del_timer(r->connection->read);
|
|
|
1535 }
|
|
|
1536
|
|
|
1537 if (r->connection->write->timer_set) {
|
|
|
1538 ngx_del_timer(r->connection->write);
|
|
|
1539 }
|
|
|
1540 }
|
|
|
1541
|
|
|
1542 ngx_http_finalize_request(r, ngx_http_special_response_handler(r, rc));
|
|
|
1543 return;
|
|
|
1544 }
|
|
|
1545
|
|
146
|
1546 if (r != r->main || rc == NGX_AGAIN) {
|
|
74
|
1547 if (ngx_http_set_write_handler(r) != NGX_OK) {
|
|
|
1548 return;
|
|
|
1549 }
|
|
58
|
1550 }
|
|
|
1551
|
|
|
1552 r->done = 1;
|
|
|
1553
|
|
|
1554 if (r != r->connection->data) {
|
|
132
|
1555 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1556 "http finalize non-active request: \"%V?%V\"",
|
|
|
1557 &r->uri, &r->args);
|
|
58
|
1558 return;
|
|
|
1559 }
|
|
|
1560
|
|
146
|
1561 if (r != r->main) {
|
|
58
|
1562
|
|
|
1563 pr = r->parent;
|
|
|
1564
|
|
132
|
1565 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1566 "http parent request: \"%V?%V\"", &pr->uri, &pr->args);
|
|
76
|
1567
|
|
58
|
1568 if (rc != NGX_AGAIN) {
|
|
146
|
1569 r->connection->data = pr;
|
|
58
|
1570 }
|
|
|
1571
|
|
214
|
1572 ctx = r->connection->log->data;
|
|
|
1573 ctx->current_request = pr;
|
|
|
1574
|
|
58
|
1575 if (pr->postponed) {
|
|
|
1576
|
|
132
|
1577 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1578 "http request: \"%V?%V\" has postponed",
|
|
|
1579 &pr->uri, &pr->args);
|
|
76
|
1580
|
|
58
|
1581 if (rc != NGX_AGAIN && pr->postponed->request == r) {
|
|
|
1582 pr->postponed = pr->postponed->next;
|
|
146
|
1583 }
|
|
|
1584
|
|
|
1585 if (r->fast_subrequest) {
|
|
194
|
1586
|
|
|
1587 if (rc == NGX_AGAIN) {
|
|
|
1588 r->fast_subrequest = 0;
|
|
|
1589 }
|
|
|
1590
|
|
146
|
1591 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1592 "http fast subrequest: \"%V?%V\" done",
|
|
|
1593 &r->uri, &r->args);
|
|
|
1594 return;
|
|
58
|
1595 }
|
|
|
1596
|
|
194
|
1597 if (rc != NGX_AGAIN) {
|
|
|
1598 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1599 "http wake parent request: \"%V?%V\"",
|
|
|
1600 &pr->uri, &pr->args);
|
|
|
1601
|
|
|
1602 pr->write_event_handler(pr);
|
|
|
1603 }
|
|
58
|
1604 }
|
|
|
1605
|
|
|
1606 return;
|
|
|
1607 }
|
|
0
|
1608
|
|
118
|
1609 if (rc == NGX_AGAIN) {
|
|
0
|
1610 return;
|
|
76
|
1611 }
|
|
|
1612
|
|
146
|
1613 if (r->connection->buffered) {
|
|
74
|
1614 (void) ngx_http_set_write_handler(r);
|
|
0
|
1615 return;
|
|
|
1616 }
|
|
|
1617
|
|
178
|
1618 if (!r->post_action) {
|
|
|
1619 r->request_complete = 1;
|
|
|
1620 }
|
|
|
1621
|
|
162
|
1622 if (ngx_http_post_action(r) == NGX_OK) {
|
|
126
|
1623 return;
|
|
|
1624 }
|
|
|
1625
|
|
0
|
1626 if (r->connection->read->timer_set) {
|
|
|
1627 ngx_del_timer(r->connection->read);
|
|
|
1628 }
|
|
|
1629
|
|
|
1630 if (r->connection->write->timer_set) {
|
|
|
1631 r->connection->write->delayed = 0;
|
|
|
1632 ngx_del_timer(r->connection->write);
|
|
|
1633 }
|
|
|
1634
|
|
138
|
1635 if (r->connection->destroyed) {
|
|
|
1636 return;
|
|
|
1637 }
|
|
|
1638
|
|
162
|
1639 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
0
|
1640
|
|
|
1641 if (!ngx_terminate
|
|
|
1642 && !ngx_exiting
|
|
|
1643 && r->keepalive != 0
|
|
|
1644 && clcf->keepalive_timeout > 0)
|
|
|
1645 {
|
|
|
1646 ngx_http_set_keepalive(r);
|
|
|
1647 return;
|
|
|
1648
|
|
|
1649 } else if (r->lingering_close && clcf->lingering_timeout > 0) {
|
|
|
1650 ngx_http_set_lingering_close(r);
|
|
|
1651 return;
|
|
|
1652 }
|
|
|
1653
|
|
|
1654 ngx_http_close_request(r, 0);
|
|
|
1655 }
|
|
|
1656
|
|
|
1657
|
|
74
|
1658 static ngx_int_t
|
|
50
|
1659 ngx_http_set_write_handler(ngx_http_request_t *r)
|
|
0
|
1660 {
|
|
|
1661 ngx_event_t *wev;
|
|
|
1662 ngx_http_core_loc_conf_t *clcf;
|
|
|
1663
|
|
58
|
1664 r->http_state = NGX_HTTP_WRITING_REQUEST_STATE;
|
|
|
1665
|
|
286
|
1666 r->read_event_handler = ngx_http_block_read;
|
|
74
|
1667 r->write_event_handler = ngx_http_writer;
|
|
|
1668
|
|
0
|
1669 wev = r->connection->write;
|
|
|
1670
|
|
|
1671 if (wev->ready && wev->delayed) {
|
|
74
|
1672 return NGX_OK;
|
|
0
|
1673 }
|
|
|
1674
|
|
58
|
1675 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
0
|
1676 if (!wev->delayed) {
|
|
|
1677 ngx_add_timer(wev, clcf->send_timeout);
|
|
|
1678 }
|
|
|
1679
|
|
2
|
1680 if (ngx_handle_write_event(wev, clcf->send_lowat) == NGX_ERROR) {
|
|
0
|
1681 ngx_http_close_request(r, 0);
|
|
74
|
1682 return NGX_ERROR;
|
|
0
|
1683 }
|
|
74
|
1684
|
|
|
1685 return NGX_OK;
|
|
0
|
1686 }
|
|
|
1687
|
|
|
1688
|
|
58
|
1689 static void
|
|
|
1690 ngx_http_writer(ngx_http_request_t *r)
|
|
0
|
1691 {
|
|
|
1692 int rc;
|
|
58
|
1693 ngx_event_t *wev;
|
|
0
|
1694 ngx_connection_t *c;
|
|
|
1695 ngx_http_core_loc_conf_t *clcf;
|
|
|
1696
|
|
58
|
1697 c = r->connection;
|
|
|
1698 wev = c->write;
|
|
|
1699
|
|
132
|
1700 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, wev->log, 0,
|
|
|
1701 "http writer handler: \"%V?%V\"", &r->uri, &r->args);
|
|
0
|
1702
|
|
|
1703 if (wev->timedout) {
|
|
|
1704 if (!wev->delayed) {
|
|
54
|
1705 ngx_log_error(NGX_LOG_INFO, c->log, NGX_ETIMEDOUT,
|
|
|
1706 "client timed out");
|
|
|
1707 c->timedout = 1;
|
|
116
|
1708
|
|
162
|
1709 ngx_http_finalize_request(r, NGX_HTTP_REQUEST_TIME_OUT);
|
|
0
|
1710 return;
|
|
|
1711 }
|
|
|
1712
|
|
|
1713 wev->timedout = 0;
|
|
|
1714 wev->delayed = 0;
|
|
|
1715
|
|
|
1716 if (!wev->ready) {
|
|
102
|
1717 clcf = ngx_http_get_module_loc_conf(r->main, ngx_http_core_module);
|
|
0
|
1718 ngx_add_timer(wev, clcf->send_timeout);
|
|
|
1719
|
|
2
|
1720 if (ngx_handle_write_event(wev, clcf->send_lowat) == NGX_ERROR) {
|
|
118
|
1721 ngx_http_close_request(r, 0);
|
|
0
|
1722 }
|
|
|
1723
|
|
|
1724 return;
|
|
|
1725 }
|
|
|
1726
|
|
|
1727 } else {
|
|
|
1728 if (wev->delayed) {
|
|
|
1729 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, wev->log, 0,
|
|
|
1730 "http writer delayed");
|
|
|
1731
|
|
102
|
1732 clcf = ngx_http_get_module_loc_conf(r->main, ngx_http_core_module);
|
|
2
|
1733
|
|
|
1734 if (ngx_handle_write_event(wev, clcf->send_lowat) == NGX_ERROR) {
|
|
118
|
1735 ngx_http_close_request(r, 0);
|
|
0
|
1736 }
|
|
|
1737
|
|
|
1738 return;
|
|
|
1739 }
|
|
|
1740 }
|
|
|
1741
|
|
132
|
1742 rc = ngx_http_output_filter(r, NULL);
|
|
|
1743
|
|
|
1744 if (c->destroyed) {
|
|
|
1745 return;
|
|
58
|
1746 }
|
|
|
1747
|
|
132
|
1748 ngx_log_debug3(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
|
1749 "http writer output filter: %d, \"%V?%V\"",
|
|
|
1750 rc, &r->uri, &r->args);
|
|
0
|
1751
|
|
|
1752 if (rc == NGX_AGAIN) {
|
|
102
|
1753 clcf = ngx_http_get_module_loc_conf(r->main, ngx_http_core_module);
|
|
0
|
1754 if (!wev->ready && !wev->delayed) {
|
|
|
1755 ngx_add_timer(wev, clcf->send_timeout);
|
|
|
1756 }
|
|
|
1757
|
|
2
|
1758 if (ngx_handle_write_event(wev, clcf->send_lowat) == NGX_ERROR) {
|
|
118
|
1759 ngx_http_close_request(r, 0);
|
|
0
|
1760 }
|
|
|
1761
|
|
254
|
1762 if (r == r->main || r->buffered) {
|
|
146
|
1763 return;
|
|
|
1764 }
|
|
|
1765
|
|
|
1766 rc = NGX_OK;
|
|
0
|
1767 }
|
|
|
1768
|
|
132
|
1769 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, wev->log, 0,
|
|
|
1770 "http writer done: \"%V?%V\"", &r->uri, &r->args);
|
|
0
|
1771
|
|
|
1772 ngx_http_finalize_request(r, rc);
|
|
|
1773 }
|
|
|
1774
|
|
|
1775
|
|
50
|
1776 static void
|
|
58
|
1777 ngx_http_block_read(ngx_http_request_t *r)
|
|
0
|
1778 {
|
|
276
|
1779 int n;
|
|
|
1780 char buf[1];
|
|
|
1781 ngx_err_t err;
|
|
|
1782 ngx_event_t *rev;
|
|
|
1783 ngx_connection_t *c;
|
|
|
1784
|
|
|
1785 c = r->connection;
|
|
|
1786 rev = c->read;
|
|
|
1787
|
|
|
1788 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "http read blocked");
|
|
|
1789
|
|
|
1790 #if (NGX_HAVE_KQUEUE)
|
|
|
1791
|
|
|
1792 if (ngx_event_flags & NGX_USE_KQUEUE_EVENT) {
|
|
|
1793
|
|
|
1794 if (!rev->pending_eof) {
|
|
|
1795 return;
|
|
|
1796 }
|
|
|
1797
|
|
|
1798 rev->eof = 1;
|
|
|
1799 c->error = 1;
|
|
|
1800 err = rev->kq_errno;
|
|
|
1801
|
|
|
1802 goto closed;
|
|
|
1803 }
|
|
|
1804
|
|
|
1805 #endif
|
|
|
1806
|
|
|
1807 n = recv(c->fd, buf, 1, MSG_PEEK);
|
|
|
1808
|
|
|
1809 if (n == 0) {
|
|
|
1810 rev->eof = 1;
|
|
|
1811 c->error = 1;
|
|
|
1812 err = 0;
|
|
|
1813
|
|
|
1814 goto closed;
|
|
|
1815
|
|
|
1816 } else if (n == -1) {
|
|
|
1817 err = ngx_socket_errno;
|
|
|
1818
|
|
|
1819 if (err != NGX_EAGAIN) {
|
|
|
1820 rev->eof = 1;
|
|
|
1821 c->error = 1;
|
|
|
1822
|
|
|
1823 goto closed;
|
|
|
1824 }
|
|
|
1825 }
|
|
0
|
1826
|
|
|
1827 /* aio does not call this handler */
|
|
|
1828
|
|
276
|
1829 if ((ngx_event_flags & NGX_USE_LEVEL_EVENT) && rev->active) {
|
|
|
1830
|
|
|
1831 if (ngx_del_event(rev, NGX_READ_EVENT, 0) == NGX_ERROR) {
|
|
0
|
1832 ngx_http_close_request(r, 0);
|
|
|
1833 }
|
|
|
1834 }
|
|
276
|
1835
|
|
|
1836 return;
|
|
|
1837
|
|
|
1838 closed:
|
|
|
1839
|
|
|
1840 if (err) {
|
|
|
1841 rev->error = 1;
|
|
|
1842 }
|
|
|
1843
|
|
|
1844 ngx_log_error(NGX_LOG_INFO, c->log, err,
|
|
|
1845 "client closed prematurely connection");
|
|
|
1846
|
|
286
|
1847 ngx_http_finalize_request(r, 0);
|
|
0
|
1848 }
|
|
|
1849
|
|
|
1850
|
|
50
|
1851 static void
|
|
|
1852 ngx_http_set_keepalive(ngx_http_request_t *r)
|
|
0
|
1853 {
|
|
2
|
1854 int tcp_nodelay;
|
|
0
|
1855 ngx_int_t i;
|
|
|
1856 ngx_buf_t *b, *f;
|
|
|
1857 ngx_event_t *rev, *wev;
|
|
|
1858 ngx_connection_t *c;
|
|
|
1859 ngx_http_connection_t *hc;
|
|
|
1860 ngx_http_core_srv_conf_t *cscf;
|
|
|
1861 ngx_http_core_loc_conf_t *clcf;
|
|
|
1862
|
|
|
1863 c = r->connection;
|
|
|
1864 rev = c->read;
|
|
|
1865
|
|
|
1866 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "set http keepalive handler");
|
|
|
1867
|
|
32
|
1868 c->log->action = "closing request";
|
|
0
|
1869
|
|
|
1870 hc = r->http_connection;
|
|
|
1871 b = r->header_in;
|
|
|
1872
|
|
|
1873 if (b->pos < b->last) {
|
|
|
1874
|
|
|
1875 /* the pipelined request */
|
|
|
1876
|
|
|
1877 if (b != c->buffer) {
|
|
|
1878
|
|
4
|
1879 /*
|
|
|
1880 * If the large header buffers were allocated while the previous
|
|
|
1881 * request processing then we do not use c->buffer for
|
|
|
1882 * the pipelined request (see ngx_http_init_request()).
|
|
126
|
1883 *
|
|
4
|
1884 * Now we would move the large header buffers to the free list.
|
|
|
1885 */
|
|
0
|
1886
|
|
|
1887 cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
|
|
|
1888
|
|
|
1889 if (hc->free == NULL) {
|
|
|
1890 hc->free = ngx_palloc(c->pool,
|
|
|
1891 cscf->large_client_header_buffers.num * sizeof(ngx_buf_t *));
|
|
|
1892
|
|
|
1893 if (hc->free == NULL) {
|
|
26
|
1894 ngx_http_close_request(r, 0);
|
|
0
|
1895 return;
|
|
|
1896 }
|
|
|
1897 }
|
|
|
1898
|
|
|
1899 for (i = 0; i < hc->nbusy - 1; i++) {
|
|
|
1900 f = hc->busy[i];
|
|
|
1901 hc->free[hc->nfree++] = f;
|
|
|
1902 f->pos = f->start;
|
|
|
1903 f->last = f->start;
|
|
|
1904 }
|
|
|
1905
|
|
|
1906 hc->busy[0] = b;
|
|
|
1907 hc->nbusy = 1;
|
|
|
1908 }
|
|
|
1909 }
|
|
|
1910
|
|
26
|
1911 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
1912
|
|
118
|
1913 ngx_http_request_done(r, 0);
|
|
|
1914
|
|
0
|
1915 c->data = hc;
|
|
|
1916
|
|
|
1917 ngx_add_timer(rev, clcf->keepalive_timeout);
|
|
|
1918
|
|
58
|
1919 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) {
|
|
0
|
1920 ngx_http_close_connection(c);
|
|
|
1921 return;
|
|
|
1922 }
|
|
|
1923
|
|
|
1924 wev = c->write;
|
|
58
|
1925 wev->handler = ngx_http_empty_handler;
|
|
0
|
1926
|
|
|
1927 if (b->pos < b->last) {
|
|
|
1928
|
|
|
1929 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "pipelined request");
|
|
|
1930
|
|
116
|
1931 #if (NGX_STAT_STUB)
|
|
|
1932 ngx_atomic_fetch_add(ngx_stat_reading, 1);
|
|
|
1933 #endif
|
|
|
1934
|
|
0
|
1935 hc->pipeline = 1;
|
|
32
|
1936 c->log->action = "reading client pipelined request line";
|
|
116
|
1937
|
|
0
|
1938 ngx_http_init_request(rev);
|
|
|
1939 return;
|
|
|
1940 }
|
|
|
1941
|
|
|
1942 hc->pipeline = 0;
|
|
|
1943
|
|
4
|
1944 /*
|
|
|
1945 * To keep a memory footprint as small as possible for an idle
|
|
|
1946 * keepalive connection we try to free the ngx_http_request_t and
|
|
|
1947 * c->buffer's memory if they were allocated outside the c->pool.
|
|
|
1948 * The large header buffers are always allocated outside the c->pool and
|
|
|
1949 * are freed too.
|
|
|
1950 */
|
|
|
1951
|
|
0
|
1952 if (ngx_pfree(c->pool, r) == NGX_OK) {
|
|
|
1953 hc->request = NULL;
|
|
|
1954 }
|
|
|
1955
|
|
|
1956 b = c->buffer;
|
|
|
1957
|
|
|
1958 if (ngx_pfree(c->pool, b->start) == NGX_OK) {
|
|
4
|
1959
|
|
|
1960 /*
|
|
|
1961 * the special note for ngx_http_keepalive_handler() that
|
|
|
1962 * c->buffer's memory was freed
|
|
|
1963 */
|
|
|
1964
|
|
0
|
1965 b->pos = NULL;
|
|
|
1966
|
|
|
1967 } else {
|
|
|
1968 b->pos = b->start;
|
|
|
1969 b->last = b->start;
|
|
|
1970 }
|
|
|
1971
|
|
10
|
1972 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, c->log, 0, "hc free: %p %d",
|
|
0
|
1973 hc->free, hc->nfree);
|
|
|
1974
|
|
|
1975 if (hc->free) {
|
|
|
1976 for (i = 0; i < hc->nfree; i++) {
|
|
|
1977 ngx_pfree(c->pool, hc->free[i]);
|
|
|
1978 hc->free[i] = NULL;
|
|
|
1979 }
|
|
|
1980
|
|
|
1981 hc->nfree = 0;
|
|
|
1982 }
|
|
|
1983
|
|
10
|
1984 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, c->log, 0, "hc busy: %p %d",
|
|
0
|
1985 hc->busy, hc->nbusy);
|
|
|
1986
|
|
|
1987 if (hc->busy) {
|
|
|
1988 for (i = 0; i < hc->nbusy; i++) {
|
|
|
1989 ngx_pfree(c->pool, hc->busy[i]);
|
|
|
1990 hc->busy[i] = NULL;
|
|
|
1991 }
|
|
|
1992
|
|
|
1993 hc->nbusy = 0;
|
|
|
1994 }
|
|
|
1995
|
|
58
|
1996 rev->handler = ngx_http_keepalive_handler;
|
|
0
|
1997
|
|
132
|
1998 if (wev->active && (ngx_event_flags & NGX_USE_LEVEL_EVENT)) {
|
|
|
1999 if (ngx_del_event(wev, NGX_WRITE_EVENT, 0) == NGX_ERROR) {
|
|
|
2000 ngx_http_close_connection(c);
|
|
|
2001 return;
|
|
0
|
2002 }
|
|
|
2003 }
|
|
|
2004
|
|
32
|
2005 c->log->action = "keepalive";
|
|
0
|
2006
|
|
|
2007 if (c->tcp_nopush == NGX_TCP_NOPUSH_SET) {
|
|
50
|
2008 if (ngx_tcp_push(c->fd) == -1) {
|
|
0
|
2009 ngx_connection_error(c, ngx_socket_errno, ngx_tcp_push_n " failed");
|
|
|
2010 ngx_http_close_connection(c);
|
|
|
2011 return;
|
|
|
2012 }
|
|
2
|
2013
|
|
0
|
2014 c->tcp_nopush = NGX_TCP_NOPUSH_UNSET;
|
|
22
|
2015 tcp_nodelay = ngx_tcp_nodelay_and_tcp_nopush ? 1 : 0;
|
|
2
|
2016
|
|
|
2017 } else {
|
|
22
|
2018 tcp_nodelay = 1;
|
|
|
2019 }
|
|
|
2020
|
|
32
|
2021 if (tcp_nodelay
|
|
|
2022 && clcf->tcp_nodelay
|
|
|
2023 && c->tcp_nodelay == NGX_TCP_NODELAY_UNSET)
|
|
|
2024 {
|
|
22
|
2025 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "tcp_nodelay");
|
|
|
2026
|
|
|
2027 if (setsockopt(c->fd, IPPROTO_TCP, TCP_NODELAY,
|
|
184
|
2028 (const void *) &tcp_nodelay, sizeof(int))
|
|
|
2029 == -1)
|
|
22
|
2030 {
|
|
|
2031 ngx_connection_error(c, ngx_socket_errno,
|
|
|
2032 "setsockopt(TCP_NODELAY) failed");
|
|
|
2033 ngx_http_close_connection(c);
|
|
|
2034 return;
|
|
2
|
2035 }
|
|
22
|
2036
|
|
32
|
2037 c->tcp_nodelay = NGX_TCP_NODELAY_SET;
|
|
0
|
2038 }
|
|
|
2039
|
|
|
2040 #if 0
|
|
4
|
2041 /* if ngx_http_request_t was freed then we need some other place */
|
|
0
|
2042 r->http_state = NGX_HTTP_KEEPALIVE_STATE;
|
|
|
2043 #endif
|
|
|
2044
|
|
290
|
2045 c->idle = 1;
|
|
|
2046
|
|
0
|
2047 if (rev->ready) {
|
|
|
2048 ngx_http_keepalive_handler(rev);
|
|
|
2049 }
|
|
|
2050 }
|
|
|
2051
|
|
|
2052
|
|
50
|
2053 static void
|
|
|
2054 ngx_http_keepalive_handler(ngx_event_t *rev)
|
|
0
|
2055 {
|
|
50
|
2056 size_t size;
|
|
|
2057 ssize_t n;
|
|
|
2058 ngx_buf_t *b;
|
|
|
2059 ngx_connection_t *c;
|
|
0
|
2060
|
|
|
2061 c = rev->data;
|
|
|
2062
|
|
|
2063 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "http keepalive handler");
|
|
|
2064
|
|
290
|
2065 if (rev->timedout || c->close) {
|
|
0
|
2066 ngx_http_close_connection(c);
|
|
|
2067 return;
|
|
|
2068 }
|
|
|
2069
|
|
18
|
2070 #if (NGX_HAVE_KQUEUE)
|
|
0
|
2071
|
|
4
|
2072 if (ngx_event_flags & NGX_USE_KQUEUE_EVENT) {
|
|
136
|
2073 if (rev->pending_eof) {
|
|
32
|
2074 c->log->handler = NULL;
|
|
0
|
2075 ngx_log_error(NGX_LOG_INFO, c->log, rev->kq_errno,
|
|
10
|
2076 "kevent() reported that client %V closed "
|
|
32
|
2077 "keepalive connection", &c->addr_text);
|
|
22
|
2078 #if (NGX_HTTP_SSL)
|
|
|
2079 if (c->ssl) {
|
|
96
|
2080 c->ssl->no_send_shutdown = 1;
|
|
22
|
2081 }
|
|
|
2082 #endif
|
|
0
|
2083 ngx_http_close_connection(c);
|
|
|
2084 return;
|
|
|
2085 }
|
|
|
2086 }
|
|
|
2087
|
|
|
2088 #endif
|
|
|
2089
|
|
|
2090 b = c->buffer;
|
|
|
2091 size = b->end - b->start;
|
|
|
2092
|
|
|
2093 if (b->pos == NULL) {
|
|
4
|
2094
|
|
|
2095 /*
|
|
|
2096 * The c->buffer's memory was freed by ngx_http_set_keepalive().
|
|
|
2097 * However, the c->buffer->start and c->buffer->end were not changed
|
|
|
2098 * to keep the buffer size.
|
|
|
2099 */
|
|
|
2100
|
|
50
|
2101 b->pos = ngx_palloc(c->pool, size);
|
|
|
2102 if (b->pos == NULL) {
|
|
0
|
2103 ngx_http_close_connection(c);
|
|
|
2104 return;
|
|
|
2105 }
|
|
|
2106
|
|
|
2107 b->start = b->pos;
|
|
|
2108 b->last = b->pos;
|
|
|
2109 b->end = b->pos + size;
|
|
|
2110 }
|
|
|
2111
|
|
|
2112 /*
|
|
|
2113 * MSIE closes a keepalive connection with RST flag
|
|
|
2114 * so we ignore ECONNRESET here.
|
|
|
2115 */
|
|
|
2116
|
|
|
2117 c->log_error = NGX_ERROR_IGNORE_ECONNRESET;
|
|
|
2118 ngx_set_socket_errno(0);
|
|
|
2119
|
|
|
2120 n = c->recv(c, b->last, size);
|
|
|
2121 c->log_error = NGX_ERROR_INFO;
|
|
|
2122
|
|
|
2123 if (n == NGX_AGAIN) {
|
|
58
|
2124 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) {
|
|
24
|
2125 ngx_http_close_connection(c);
|
|
|
2126 }
|
|
|
2127
|
|
0
|
2128 return;
|
|
|
2129 }
|
|
|
2130
|
|
|
2131 if (n == NGX_ERROR) {
|
|
|
2132 ngx_http_close_connection(c);
|
|
|
2133 return;
|
|
|
2134 }
|
|
|
2135
|
|
32
|
2136 c->log->handler = NULL;
|
|
0
|
2137
|
|
|
2138 if (n == 0) {
|
|
|
2139 ngx_log_error(NGX_LOG_INFO, c->log, ngx_socket_errno,
|
|
32
|
2140 "client %V closed keepalive connection", &c->addr_text);
|
|
0
|
2141 ngx_http_close_connection(c);
|
|
|
2142 return;
|
|
|
2143 }
|
|
|
2144
|
|
|
2145 b->last += n;
|
|
32
|
2146
|
|
116
|
2147 #if (NGX_STAT_STUB)
|
|
|
2148 ngx_atomic_fetch_add(ngx_stat_reading, 1);
|
|
|
2149 #endif
|
|
|
2150
|
|
32
|
2151 c->log->handler = ngx_http_log_error;
|
|
|
2152 c->log->action = "reading client request line";
|
|
0
|
2153
|
|
290
|
2154 c->idle = 0;
|
|
|
2155
|
|
0
|
2156 ngx_http_init_request(rev);
|
|
|
2157 }
|
|
|
2158
|
|
|
2159
|
|
50
|
2160 static void
|
|
|
2161 ngx_http_set_lingering_close(ngx_http_request_t *r)
|
|
126
|
2162 {
|
|
0
|
2163 ngx_event_t *rev, *wev;
|
|
|
2164 ngx_connection_t *c;
|
|
|
2165 ngx_http_core_loc_conf_t *clcf;
|
|
|
2166
|
|
|
2167 c = r->connection;
|
|
|
2168
|
|
|
2169 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
2170
|
|
|
2171 rev = c->read;
|
|
58
|
2172 rev->handler = ngx_http_lingering_close_handler;
|
|
0
|
2173
|
|
106
|
2174 r->lingering_time = ngx_time() + (time_t) (clcf->lingering_time / 1000);
|
|
0
|
2175 ngx_add_timer(rev, clcf->lingering_timeout);
|
|
|
2176
|
|
58
|
2177 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) {
|
|
0
|
2178 ngx_http_close_request(r, 0);
|
|
|
2179 return;
|
|
|
2180 }
|
|
|
2181
|
|
|
2182 wev = c->write;
|
|
58
|
2183 wev->handler = ngx_http_empty_handler;
|
|
0
|
2184
|
|
132
|
2185 if (wev->active && (ngx_event_flags & NGX_USE_LEVEL_EVENT)) {
|
|
|
2186 if (ngx_del_event(wev, NGX_WRITE_EVENT, 0) == NGX_ERROR) {
|
|
|
2187 ngx_http_close_request(r, 0);
|
|
|
2188 return;
|
|
0
|
2189 }
|
|
|
2190 }
|
|
|
2191
|
|
|
2192 if (ngx_shutdown_socket(c->fd, NGX_WRITE_SHUTDOWN) == -1) {
|
|
|
2193 ngx_connection_error(c, ngx_socket_errno,
|
|
|
2194 ngx_shutdown_socket_n " failed");
|
|
|
2195 ngx_http_close_request(r, 0);
|
|
|
2196 return;
|
|
|
2197 }
|
|
|
2198
|
|
|
2199 if (rev->ready) {
|
|
|
2200 ngx_http_lingering_close_handler(rev);
|
|
|
2201 }
|
|
|
2202 }
|
|
|
2203
|
|
|
2204
|
|
50
|
2205 static void
|
|
|
2206 ngx_http_lingering_close_handler(ngx_event_t *rev)
|
|
0
|
2207 {
|
|
|
2208 ssize_t n;
|
|
|
2209 ngx_msec_t timer;
|
|
|
2210 ngx_connection_t *c;
|
|
|
2211 ngx_http_request_t *r;
|
|
|
2212 ngx_http_core_loc_conf_t *clcf;
|
|
|
2213 u_char buffer[NGX_HTTP_LINGERING_BUFFER_SIZE];
|
|
|
2214
|
|
|
2215 c = rev->data;
|
|
|
2216 r = c->data;
|
|
|
2217
|
|
|
2218 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
|
2219 "http lingering close handler");
|
|
|
2220
|
|
|
2221 if (rev->timedout) {
|
|
126
|
2222 c->timedout = 1;
|
|
0
|
2223 ngx_http_close_request(r, 0);
|
|
|
2224 return;
|
|
|
2225 }
|
|
|
2226
|
|
|
2227 timer = r->lingering_time - ngx_time();
|
|
|
2228 if (timer <= 0) {
|
|
|
2229 ngx_http_close_request(r, 0);
|
|
|
2230 return;
|
|
|
2231 }
|
|
|
2232
|
|
|
2233 do {
|
|
|
2234 n = c->recv(c, buffer, NGX_HTTP_LINGERING_BUFFER_SIZE);
|
|
|
2235
|
|
|
2236 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0, "lingering read: %d", n);
|
|
|
2237
|
|
|
2238 if (n == NGX_ERROR || n == 0) {
|
|
|
2239 ngx_http_close_request(r, 0);
|
|
|
2240 return;
|
|
|
2241 }
|
|
|
2242
|
|
|
2243 } while (rev->ready);
|
|
|
2244
|
|
58
|
2245 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) {
|
|
26
|
2246 ngx_http_close_request(r, 0);
|
|
24
|
2247 return;
|
|
|
2248 }
|
|
|
2249
|
|
0
|
2250 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
2251
|
|
|
2252 timer *= 1000;
|
|
|
2253
|
|
|
2254 if (timer > clcf->lingering_timeout) {
|
|
|
2255 timer = clcf->lingering_timeout;
|
|
|
2256 }
|
|
|
2257
|
|
|
2258 ngx_add_timer(rev, timer);
|
|
|
2259 }
|
|
|
2260
|
|
|
2261
|
|
50
|
2262 void
|
|
|
2263 ngx_http_empty_handler(ngx_event_t *wev)
|
|
0
|
2264 {
|
|
|
2265 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, wev->log, 0, "http empty handler");
|
|
|
2266
|
|
|
2267 return;
|
|
|
2268 }
|
|
|
2269
|
|
|
2270
|
|
58
|
2271 void
|
|
|
2272 ngx_http_request_empty_handler(ngx_http_request_t *r)
|
|
|
2273 {
|
|
|
2274 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
132
|
2275 "http request empty handler");
|
|
58
|
2276
|
|
|
2277 return;
|
|
|
2278 }
|
|
|
2279
|
|
|
2280
|
|
50
|
2281 ngx_int_t
|
|
130
|
2282 ngx_http_send_special(ngx_http_request_t *r, ngx_uint_t flags)
|
|
0
|
2283 {
|
|
|
2284 ngx_buf_t *b;
|
|
|
2285 ngx_chain_t out;
|
|
|
2286
|
|
50
|
2287 b = ngx_calloc_buf(r->pool);
|
|
|
2288 if (b == NULL) {
|
|
0
|
2289 return NGX_ERROR;
|
|
|
2290 }
|
|
|
2291
|
|
130
|
2292 if (flags & NGX_HTTP_LAST) {
|
|
|
2293 b->last_buf = 1;
|
|
|
2294 }
|
|
|
2295
|
|
|
2296 if (flags & NGX_HTTP_FLUSH) {
|
|
|
2297 b->flush = 1;
|
|
|
2298 }
|
|
|
2299
|
|
0
|
2300 out.buf = b;
|
|
|
2301 out.next = NULL;
|
|
|
2302
|
|
|
2303 return ngx_http_output_filter(r, &out);
|
|
|
2304 }
|
|
|
2305
|
|
|
2306
|
|
162
|
2307 static ngx_int_t
|
|
|
2308 ngx_http_post_action(ngx_http_request_t *r)
|
|
|
2309 {
|
|
|
2310 ngx_http_core_loc_conf_t *clcf;
|
|
|
2311
|
|
|
2312 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
2313
|
|
|
2314 if (clcf->post_action.data == NULL) {
|
|
|
2315 return NGX_DECLINED;
|
|
|
2316 }
|
|
|
2317
|
|
172
|
2318 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
2319 "post action: \"%V\"", &clcf->post_action);
|
|
|
2320
|
|
162
|
2321 r->http_version = NGX_HTTP_VERSION_9;
|
|
|
2322 r->header_only = 1;
|
|
178
|
2323 r->post_action = 1;
|
|
162
|
2324
|
|
262
|
2325 r->read_event_handler = ngx_http_block_read;
|
|
|
2326
|
|
162
|
2327 ngx_http_internal_redirect(r, &clcf->post_action, NULL);
|
|
|
2328
|
|
|
2329 return NGX_OK;
|
|
|
2330 }
|
|
|
2331
|
|
|
2332
|
|
|
2333 static void
|
|
58
|
2334 ngx_http_close_request(ngx_http_request_t *r, ngx_int_t error)
|
|
0
|
2335 {
|
|
188
|
2336 ngx_connection_t *c;
|
|
118
|
2337
|
|
|
2338 c = r->connection;
|
|
188
|
2339
|
|
|
2340 ngx_http_request_done(r->main, error);
|
|
118
|
2341 ngx_http_close_connection(c);
|
|
|
2342 }
|
|
|
2343
|
|
|
2344
|
|
162
|
2345 static void
|
|
118
|
2346 ngx_http_request_done(ngx_http_request_t *r, ngx_int_t error)
|
|
|
2347 {
|
|
|
2348 ngx_log_t *log;
|
|
130
|
2349 ngx_uint_t i, n;
|
|
118
|
2350 struct linger linger;
|
|
188
|
2351 ngx_http_cleanup_t *cln;
|
|
118
|
2352 ngx_http_log_ctx_t *ctx;
|
|
130
|
2353 ngx_http_handler_pt *log_handler;
|
|
118
|
2354 ngx_http_core_loc_conf_t *clcf;
|
|
|
2355 ngx_http_core_main_conf_t *cmcf;
|
|
0
|
2356
|
|
|
2357 log = r->connection->log;
|
|
|
2358
|
|
|
2359 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, log, 0, "http close request");
|
|
|
2360
|
|
|
2361 if (r->pool == NULL) {
|
|
80
|
2362 ngx_log_error(NGX_LOG_ALERT, log, 0, "http request already closed");
|
|
0
|
2363 return;
|
|
|
2364 }
|
|
|
2365
|
|
188
|
2366 for (cln = r->cleanup; cln; cln = cln->next) {
|
|
|
2367 if (cln->handler) {
|
|
|
2368 cln->handler(cln->data);
|
|
|
2369 }
|
|
|
2370 }
|
|
|
2371
|
|
0
|
2372 #if (NGX_STAT_STUB)
|
|
116
|
2373
|
|
0
|
2374 if (r->stat_reading) {
|
|
110
|
2375 ngx_atomic_fetch_add(ngx_stat_reading, -1);
|
|
0
|
2376 }
|
|
|
2377
|
|
|
2378 if (r->stat_writing) {
|
|
110
|
2379 ngx_atomic_fetch_add(ngx_stat_writing, -1);
|
|
0
|
2380 }
|
|
116
|
2381
|
|
0
|
2382 #endif
|
|
|
2383
|
|
|
2384 if (error && r->headers_out.status == 0) {
|
|
|
2385 r->headers_out.status = error;
|
|
|
2386 }
|
|
|
2387
|
|
118
|
2388 cmcf = ngx_http_get_module_main_conf(r, ngx_http_core_module);
|
|
|
2389
|
|
130
|
2390 log_handler = cmcf->phases[NGX_HTTP_LOG_PHASE].handlers.elts;
|
|
|
2391 n = cmcf->phases[NGX_HTTP_LOG_PHASE].handlers.nelts;
|
|
|
2392 for (i = 0; i < n; i++) {
|
|
|
2393 log_handler[i](r);
|
|
118
|
2394 }
|
|
0
|
2395
|
|
|
2396 if (r->connection->timedout) {
|
|
|
2397 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
2398
|
|
|
2399 if (clcf->reset_timedout_connection) {
|
|
58
|
2400 linger.l_onoff = 1;
|
|
|
2401 linger.l_linger = 0;
|
|
0
|
2402
|
|
|
2403 if (setsockopt(r->connection->fd, SOL_SOCKET, SO_LINGER,
|
|
58
|
2404 (const void *) &linger, sizeof(struct linger)) == -1)
|
|
0
|
2405 {
|
|
|
2406 ngx_log_error(NGX_LOG_ALERT, log, ngx_socket_errno,
|
|
|
2407 "setsockopt(SO_LINGER) failed");
|
|
|
2408 }
|
|
|
2409 }
|
|
|
2410 }
|
|
|
2411
|
|
58
|
2412 /* the various request strings were allocated from r->pool */
|
|
0
|
2413 ctx = log->data;
|
|
10
|
2414 ctx->request = NULL;
|
|
0
|
2415
|
|
|
2416 r->request_line.len = 0;
|
|
|
2417
|
|
132
|
2418 r->connection->destroyed = 1;
|
|
|
2419
|
|
0
|
2420 ngx_destroy_pool(r->pool);
|
|
|
2421 }
|
|
|
2422
|
|
|
2423
|
|
80
|
2424 static void
|
|
50
|
2425 ngx_http_close_connection(ngx_connection_t *c)
|
|
0
|
2426 {
|
|
28
|
2427 ngx_pool_t *pool;
|
|
|
2428
|
|
0
|
2429 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
|
2430 "close http connection: %d", c->fd);
|
|
|
2431
|
|
88
|
2432 #if (NGX_HTTP_SSL)
|
|
2
|
2433
|
|
|
2434 if (c->ssl) {
|
|
|
2435 if (ngx_ssl_shutdown(c) == NGX_AGAIN) {
|
|
126
|
2436 c->ssl->handler = ngx_http_close_connection;
|
|
2
|
2437 return;
|
|
|
2438 }
|
|
|
2439 }
|
|
|
2440
|
|
|
2441 #endif
|
|
|
2442
|
|
0
|
2443 #if (NGX_STAT_STUB)
|
|
110
|
2444 ngx_atomic_fetch_add(ngx_stat_active, -1);
|
|
0
|
2445 #endif
|
|
|
2446
|
|
132
|
2447 c->destroyed = 1;
|
|
|
2448
|
|
28
|
2449 pool = c->pool;
|
|
|
2450
|
|
0
|
2451 ngx_close_connection(c);
|
|
28
|
2452
|
|
50
|
2453 ngx_destroy_pool(pool);
|
|
0
|
2454 }
|
|
|
2455
|
|
|
2456
|
|
50
|
2457 static u_char *
|
|
|
2458 ngx_http_log_error(ngx_log_t *log, u_char *buf, size_t len)
|
|
0
|
2459 {
|
|
32
|
2460 u_char *p;
|
|
54
|
2461 ngx_http_request_t *r;
|
|
32
|
2462 ngx_http_log_ctx_t *ctx;
|
|
10
|
2463
|
|
32
|
2464 if (log->action) {
|
|
58
|
2465 p = ngx_snprintf(buf, len, " while %s", log->action);
|
|
10
|
2466 len -= p - buf;
|
|
54
|
2467 buf = p;
|
|
10
|
2468 }
|
|
|
2469
|
|
58
|
2470 ctx = log->data;
|
|
|
2471
|
|
54
|
2472 p = ngx_snprintf(buf, len, ", client: %V", ctx->client);
|
|
58
|
2473 len -= p - buf;
|
|
54
|
2474
|
|
|
2475 r = ctx->request;
|
|
|
2476
|
|
58
|
2477 if (r) {
|
|
214
|
2478 return r->log_handler(r, ctx->current_request, p, len);
|
|
0
|
2479 }
|
|
10
|
2480
|
|
58
|
2481 return p;
|
|
|
2482 }
|
|
|
2483
|
|
|
2484
|
|
|
2485 static u_char *
|
|
214
|
2486 ngx_http_log_error_handler(ngx_http_request_t *r, ngx_http_request_t *sr,
|
|
|
2487 u_char *buf, size_t len)
|
|
58
|
2488 {
|
|
260
|
2489 char *uri_separator;
|
|
|
2490 u_char *p;
|
|
|
2491 ngx_http_upstream_t *u;
|
|
54
|
2492
|
|
|
2493 if (r->server_name.data) {
|
|
|
2494 p = ngx_snprintf(buf, len, ", server: %V", &r->server_name);
|
|
52
|
2495 len -= p - buf;
|
|
54
|
2496 buf = p;
|
|
52
|
2497 }
|
|
|
2498
|
|
54
|
2499 if (r->unparsed_uri.data) {
|
|
|
2500 p = ngx_snprintf(buf, len, ", URL: \"%V\"", &r->unparsed_uri);
|
|
|
2501 len -= p - buf;
|
|
|
2502 buf = p;
|
|
|
2503
|
|
|
2504 } else {
|
|
|
2505 if (r->request_line.data == NULL && r->request_start) {
|
|
|
2506 for (p = r->request_start; p < r->header_in->last; p++) {
|
|
|
2507 if (*p == CR || *p == LF) {
|
|
|
2508 break;
|
|
|
2509 }
|
|
|
2510 }
|
|
|
2511
|
|
|
2512 r->request_line.len = p - r->request_start;
|
|
|
2513 r->request_line.data = r->request_start;
|
|
|
2514 }
|
|
|
2515
|
|
|
2516 if (r->request_line.len) {
|
|
|
2517 p = ngx_snprintf(buf, len, ", request: \"%V\"", &r->request_line);
|
|
|
2518 len -= p - buf;
|
|
|
2519 buf = p;
|
|
|
2520 }
|
|
10
|
2521 }
|
|
|
2522
|
|
214
|
2523 if (r != sr) {
|
|
|
2524 p = ngx_snprintf(buf, len, ", subrequest: \"%V\"", &sr->uri);
|
|
|
2525 len -= p - buf;
|
|
|
2526 buf = p;
|
|
|
2527 }
|
|
|
2528
|
|
|
2529 u = sr->upstream;
|
|
|
2530
|
|
260
|
2531 if (u && u->peer.name) {
|
|
|
2532
|
|
|
2533 uri_separator = "";
|
|
|
2534
|
|
|
2535 #if (NGX_HAVE_UNIX_DOMAIN)
|
|
|
2536 if (u->peer.sockaddr && u->peer.sockaddr->sa_family == AF_UNIX) {
|
|
|
2537 uri_separator = ":";
|
|
|
2538 }
|
|
|
2539 #endif
|
|
214
|
2540
|
|
|
2541 p = ngx_snprintf(buf, len, ", upstream: \"%V%V%s%V\"",
|
|
260
|
2542 &u->conf->schema, u->peer.name,
|
|
|
2543 uri_separator, &u->uri);
|
|
214
|
2544 len -= p - buf;
|
|
|
2545 buf = p;
|
|
|
2546 }
|
|
|
2547
|
|
54
|
2548 if (r->headers_in.host) {
|
|
|
2549 p = ngx_snprintf(buf, len, ", host: \"%V\"",
|
|
|
2550 &r->headers_in.host->value);
|
|
|
2551 len -= p - buf;
|
|
|
2552 buf = p;
|
|
|
2553 }
|
|
|
2554
|
|
|
2555 if (r->headers_in.referer) {
|
|
|
2556 p = ngx_snprintf(buf, len, ", referrer: \"%V\"",
|
|
|
2557 &r->headers_in.referer->value);
|
|
|
2558 buf = p;
|
|
|
2559 }
|
|
|
2560
|
|
|
2561 return buf;
|
|
|
2562 }
|
