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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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190
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215 socklen_t len;
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122
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216 ngx_uint_t i;
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217 struct sockaddr_in sin;
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218 ngx_connection_t *c;
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219 ngx_http_request_t *r;
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142
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220 ngx_http_in_port_t *hip;
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221 ngx_http_in_addr_t *hia;
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122
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222 ngx_http_log_ctx_t *ctx;
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223 ngx_http_connection_t *hc;
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224 ngx_http_core_srv_conf_t *cscf;
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225 ngx_http_core_loc_conf_t *clcf;
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226 ngx_http_core_main_conf_t *cmcf;
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0
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227 #if (NGX_HTTP_SSL)
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122
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228 ngx_http_ssl_srv_conf_t *sscf;
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0
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229 #endif
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230
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116
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231 #if (NGX_STAT_STUB)
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232 ngx_atomic_fetch_add(ngx_stat_reading, -1);
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233 #endif
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234
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0
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235 c = rev->data;
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236
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237 if (rev->timedout) {
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238 ngx_log_error(NGX_LOG_INFO, c->log, NGX_ETIMEDOUT, "client timed out");
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239
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240 ngx_http_close_connection(c);
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241 return;
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242 }
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243
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244 hc = c->data;
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245
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116
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246 if (hc == NULL) {
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50
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247 hc = ngx_pcalloc(c->pool, sizeof(ngx_http_connection_t));
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248 if (hc == NULL) {
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0
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249 ngx_http_close_connection(c);
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250 return;
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251 }
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252 }
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253
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254 r = hc->request;
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255
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256 if (r) {
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257 ngx_memzero(r, sizeof(ngx_http_request_t));
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258
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259 r->pipeline = hc->pipeline;
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260
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261 if (hc->nbusy) {
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262 r->header_in = hc->busy[0];
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263 }
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264
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265 } else {
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50
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266 r = ngx_pcalloc(c->pool, sizeof(ngx_http_request_t));
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267 if (r == NULL) {
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0
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268 ngx_http_close_connection(c);
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269 return;
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270 }
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271
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272 hc->request = r;
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273 }
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274
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275 c->data = r;
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276 r->http_connection = hc;
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277
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278 c->sent = 0;
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279 r->signature = NGX_HTTP_MODULE;
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280
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281 /* find the server configuration for the address:port */
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282
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283 /* AF_INET only */
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284
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190
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285 hip = c->listening->servers;
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142
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286 hia = hip->addrs;
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287
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288 r->port = hip->port;
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289 r->port_text = &hip->port_text;
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0
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290
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291 i = 0;
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292
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142
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293 if (hip->naddrs > 1) {
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0
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294
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295 /*
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296 * There are several addresses on this port and one of them
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297 * is the "*:port" wildcard so getsockname() is needed to determine
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298 * the server address.
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299 *
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300 * AcceptEx() already gave this address.
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301 */
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302
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10
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303 #if (NGX_WIN32)
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0
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304 if (c->local_sockaddr) {
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305 r->in_addr =
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306 ((struct sockaddr_in *) c->local_sockaddr)->sin_addr.s_addr;
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307
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28
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308 } else
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0
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309 #endif
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28
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310 {
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0
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311 len = sizeof(struct sockaddr_in);
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28
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312 if (getsockname(c->fd, (struct sockaddr *) &sin, &len) == -1) {
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0
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313 ngx_connection_error(c, ngx_socket_errno,
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314 "getsockname() failed");
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315 ngx_http_close_connection(c);
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316 return;
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317 }
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318
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28
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319 r->in_addr = sin.sin_addr.s_addr;
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0
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320 }
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321
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190
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322 /* the last address is "*" */
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0
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323
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142
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324 for ( /* void */ ; i < hip->naddrs - 1; i++) {
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325 if (hia[i].addr == r->in_addr) {
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0
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326 break;
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327 }
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328 }
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329
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330 } else {
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142
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331 r->in_addr = hia[0].addr;
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0
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332 }
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333
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142
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334 r->virtual_names = hia[i].virtual_names;
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0
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335
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336 /* the default server configuration for the address:port */
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142
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337 cscf = hia[i].core_srv_conf;
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0
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338
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339 r->main_conf = cscf->ctx->main_conf;
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340 r->srv_conf = cscf->ctx->srv_conf;
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341 r->loc_conf = cscf->ctx->loc_conf;
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342
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142
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343 r->server_name = cscf->server_name;
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344
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58
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345 rev->handler = ngx_http_process_request_line;
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0
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346
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347 #if (NGX_HTTP_SSL)
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348
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349 sscf = ngx_http_get_module_srv_conf(r, ngx_http_ssl_module);
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350 if (sscf->enable) {
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351
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352 if (c->ssl == NULL) {
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96
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353 if (ngx_ssl_create_connection(&sscf->ssl, c, NGX_SSL_BUFFER)
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56
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354 == NGX_ERROR)
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0
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355 {
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356 ngx_http_close_connection(c);
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357 return;
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358 }
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359
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58
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360 rev->handler = ngx_http_ssl_handshake;
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0
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361 }
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362
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62
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363 r->main_filter_need_in_memory = 1;
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0
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364 }
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365
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366 #endif
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367
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368 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
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|
|
369 c->log->file = clcf->err_log->file;
|
|
|
370 if (!(c->log->log_level & NGX_LOG_DEBUG_CONNECTION)) {
|
|
|
371 c->log->log_level = clcf->err_log->log_level;
|
|
|
372 }
|
|
|
373
|
|
|
374 if (c->buffer == NULL) {
|
|
|
375 c->buffer = ngx_create_temp_buf(c->pool,
|
|
|
376 cscf->client_header_buffer_size);
|
|
|
377 if (c->buffer == NULL) {
|
|
|
378 ngx_http_close_connection(c);
|
|
|
379 return;
|
|
|
380 }
|
|
|
381 }
|
|
|
382
|
|
|
383 if (r->header_in == NULL) {
|
|
|
384 r->header_in = c->buffer;
|
|
|
385 }
|
|
|
386
|
|
50
|
387 r->pool = ngx_create_pool(cscf->request_pool_size, c->log);
|
|
|
388 if (r->pool == NULL) {
|
|
0
|
389 ngx_http_close_connection(c);
|
|
|
390 return;
|
|
|
391 }
|
|
|
392
|
|
|
393
|
|
|
394 if (ngx_list_init(&r->headers_out.headers, r->pool, 20,
|
|
130
|
395 sizeof(ngx_table_elt_t))
|
|
|
396 == NGX_ERROR)
|
|
0
|
397 {
|
|
|
398 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
399 return;
|
|
|
400 }
|
|
|
401
|
|
|
402 r->ctx = ngx_pcalloc(r->pool, sizeof(void *) * ngx_http_max_module);
|
|
|
403 if (r->ctx == NULL) {
|
|
|
404 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
405 return;
|
|
|
406 }
|
|
|
407
|
|
122
|
408 cmcf = ngx_http_get_module_main_conf(r, ngx_http_core_module);
|
|
|
409
|
|
|
410 r->variables = ngx_pcalloc(r->pool, cmcf->variables.nelts
|
|
|
411 * sizeof(ngx_http_variable_value_t));
|
|
|
412 if (r->variables == NULL) {
|
|
|
413 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
414 return;
|
|
|
415 }
|
|
|
416
|
|
0
|
417 c->single_connection = 1;
|
|
132
|
418 c->destroyed = 0;
|
|
|
419
|
|
0
|
420 r->connection = c;
|
|
|
421
|
|
102
|
422 r->main = r;
|
|
|
423
|
|
46
|
424 r->start_time = ngx_time();
|
|
|
425
|
|
180
|
426 r->method = NGX_HTTP_UNKNOWN;
|
|
|
427
|
|
0
|
428 r->headers_in.content_length_n = -1;
|
|
|
429 r->headers_in.keep_alive_n = -1;
|
|
|
430 r->headers_out.content_length_n = -1;
|
|
|
431 r->headers_out.last_modified_time = -1;
|
|
|
432
|
|
226
|
433 r->uri_changes = NGX_HTTP_MAX_URI_CHANGES + 1;
|
|
|
434 r->subrequests = NGX_HTTP_MAX_SUBREQUESTS + 1;
|
|
|
435
|
|
0
|
436 r->http_state = NGX_HTTP_READING_REQUEST_STATE;
|
|
|
437
|
|
54
|
438 ctx = c->log->data;
|
|
|
439 ctx->request = r;
|
|
214
|
440 ctx->current_request = r;
|
|
58
|
441 r->log_handler = ngx_http_log_error_handler;
|
|
54
|
442
|
|
0
|
443 #if (NGX_STAT_STUB)
|
|
110
|
444 ngx_atomic_fetch_add(ngx_stat_reading, 1);
|
|
26
|
445 r->stat_reading = 1;
|
|
110
|
446 ngx_atomic_fetch_add(ngx_stat_requests, 1);
|
|
0
|
447 #endif
|
|
|
448
|
|
58
|
449 rev->handler(rev);
|
|
0
|
450 }
|
|
|
451
|
|
|
452
|
|
|
453 #if (NGX_HTTP_SSL)
|
|
|
454
|
|
50
|
455 static void
|
|
|
456 ngx_http_ssl_handshake(ngx_event_t *rev)
|
|
0
|
457 {
|
|
10
|
458 u_char buf[1];
|
|
|
459 ssize_t n;
|
|
0
|
460 ngx_int_t rc;
|
|
|
461 ngx_connection_t *c;
|
|
|
462 ngx_http_request_t *r;
|
|
|
463
|
|
|
464 c = rev->data;
|
|
|
465 r = c->data;
|
|
|
466
|
|
|
467 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, rev->log, 0,
|
|
|
468 "http check ssl handshake");
|
|
|
469
|
|
|
470 if (rev->timedout) {
|
|
54
|
471 ngx_log_error(NGX_LOG_INFO, c->log, NGX_ETIMEDOUT, "client timed out");
|
|
|
472 c->timedout = 1;
|
|
|
473 ngx_http_close_request(r, NGX_HTTP_REQUEST_TIME_OUT);
|
|
0
|
474 return;
|
|
|
475 }
|
|
|
476
|
|
132
|
477 n = recv(c->fd, (char *) buf, 1, MSG_PEEK);
|
|
0
|
478
|
|
|
479 if (n == -1 && ngx_socket_errno == NGX_EAGAIN) {
|
|
|
480 return;
|
|
|
481 }
|
|
|
482
|
|
|
483 if (n == 1) {
|
|
|
484 if (buf[0] == 0x80 /* SSLv2 */ || buf[0] == 0x16 /* SSLv3/TLSv1 */) {
|
|
|
485 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, rev->log, 0,
|
|
10
|
486 "https ssl handshake: 0x%02Xd", buf[0]);
|
|
0
|
487
|
|
|
488 rc = ngx_ssl_handshake(c);
|
|
|
489
|
|
96
|
490 if (rc == NGX_AGAIN) {
|
|
|
491 c->ssl->handler = ngx_http_ssl_handshake_handler;
|
|
0
|
492 return;
|
|
|
493 }
|
|
|
494
|
|
96
|
495 ngx_http_ssl_handshake_handler(c);
|
|
|
496
|
|
|
497 return;
|
|
0
|
498
|
|
|
499 } else {
|
|
|
500 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, rev->log, 0,
|
|
|
501 "plain http");
|
|
|
502
|
|
|
503 r->plain_http = 1;
|
|
|
504 }
|
|
|
505 }
|
|
|
506
|
|
58
|
507 rev->handler = ngx_http_process_request_line;
|
|
0
|
508 ngx_http_process_request_line(rev);
|
|
|
509 }
|
|
|
510
|
|
96
|
511
|
|
|
512 static void
|
|
|
513 ngx_http_ssl_handshake_handler(ngx_connection_t *c)
|
|
|
514 {
|
|
|
515 ngx_http_request_t *r;
|
|
|
516
|
|
|
517 if (c->ssl->handshaked) {
|
|
|
518
|
|
|
519 /*
|
|
|
520 * The majority of browsers do not send the "close notify" alert.
|
|
|
521 * Among them are MSIE, old Mozilla, Netscape 4, Konqueror,
|
|
|
522 * and Links. And what is more, MSIE ignores the server's alert.
|
|
|
523 *
|
|
|
524 * Opera and recent Mozilla send the alert.
|
|
|
525 */
|
|
|
526
|
|
|
527 c->ssl->no_wait_shutdown = 1;
|
|
|
528
|
|
|
529 c->read->handler = ngx_http_process_request_line;
|
|
|
530 /* STUB: epoll edge */ c->write->handler = ngx_http_empty_handler;
|
|
|
531
|
|
|
532 ngx_http_process_request_line(c->read);
|
|
|
533
|
|
|
534 return;
|
|
|
535 }
|
|
|
536
|
|
|
537 r = c->data;
|
|
|
538
|
|
|
539 ngx_http_close_request(r, NGX_HTTP_BAD_REQUEST);
|
|
|
540
|
|
|
541 return;
|
|
|
542 }
|
|
|
543
|
|
|
544
|
|
0
|
545 #endif
|
|
|
546
|
|
|
547
|
|
50
|
548 static void
|
|
|
549 ngx_http_process_request_line(ngx_event_t *rev)
|
|
0
|
550 {
|
|
|
551 ssize_t n;
|
|
|
552 ngx_int_t rc, rv;
|
|
|
553 ngx_connection_t *c;
|
|
|
554 ngx_http_request_t *r;
|
|
|
555
|
|
|
556 c = rev->data;
|
|
|
557 r = c->data;
|
|
|
558
|
|
|
559 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, rev->log, 0,
|
|
|
560 "http process request line");
|
|
|
561
|
|
|
562 if (rev->timedout) {
|
|
54
|
563 ngx_log_error(NGX_LOG_INFO, c->log, NGX_ETIMEDOUT, "client timed out");
|
|
|
564 c->timedout = 1;
|
|
|
565 ngx_http_close_request(r, NGX_HTTP_REQUEST_TIME_OUT);
|
|
0
|
566 return;
|
|
|
567 }
|
|
|
568
|
|
|
569 rc = NGX_AGAIN;
|
|
|
570
|
|
|
571 for ( ;; ) {
|
|
|
572
|
|
|
573 if (rc == NGX_AGAIN) {
|
|
|
574 n = ngx_http_read_request_header(r);
|
|
|
575
|
|
|
576 if (n == NGX_AGAIN || n == NGX_ERROR) {
|
|
|
577 return;
|
|
|
578 }
|
|
|
579 }
|
|
|
580
|
|
|
581 rc = ngx_http_parse_request_line(r, r->header_in);
|
|
|
582
|
|
|
583 if (rc == NGX_OK) {
|
|
|
584
|
|
|
585 /* the request line has been parsed successfully */
|
|
|
586
|
|
10
|
587 r->request_line.len = r->request_end - r->request_start;
|
|
|
588 r->request_line.data = r->request_start;
|
|
|
589
|
|
0
|
590
|
|
|
591 if (r->args_start) {
|
|
|
592 r->uri.len = r->args_start - 1 - r->uri_start;
|
|
|
593 } else {
|
|
|
594 r->uri.len = r->uri_end - r->uri_start;
|
|
|
595 }
|
|
|
596
|
|
18
|
597
|
|
2
|
598 if (r->complex_uri || r->quoted_uri) {
|
|
10
|
599
|
|
50
|
600 r->uri.data = ngx_palloc(r->pool, r->uri.len + 1);
|
|
|
601 if (r->uri.data == NULL) {
|
|
10
|
602 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
603 return;
|
|
|
604 }
|
|
|
605
|
|
0
|
606 rc = ngx_http_parse_complex_uri(r);
|
|
|
607
|
|
54
|
608 if (rc == NGX_HTTP_PARSE_INVALID_REQUEST) {
|
|
|
609 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
|
610 "client sent invalid request");
|
|
|
611 ngx_http_finalize_request(r, NGX_HTTP_BAD_REQUEST);
|
|
0
|
612 return;
|
|
|
613 }
|
|
|
614
|
|
|
615 } else {
|
|
10
|
616 r->uri.data = r->uri_start;
|
|
0
|
617 }
|
|
|
618
|
|
18
|
619
|
|
10
|
620 r->unparsed_uri.len = r->uri_end - r->uri_start;
|
|
|
621 r->unparsed_uri.data = r->uri_start;
|
|
|
622
|
|
0
|
623
|
|
58
|
624 r->method_name.len = r->method_end - r->request_start + 1;
|
|
|
625 r->method_name.data = r->request_line.data;
|
|
0
|
626
|
|
10
|
627
|
|
28
|
628 if (r->http_protocol.data) {
|
|
|
629 r->http_protocol.len = r->request_end - r->http_protocol.data;
|
|
|
630 }
|
|
|
631
|
|
|
632
|
|
0
|
633 if (r->uri_ext) {
|
|
|
634 if (r->args_start) {
|
|
|
635 r->exten.len = r->args_start - 1 - r->uri_ext;
|
|
|
636 } else {
|
|
|
637 r->exten.len = r->uri_end - r->uri_ext;
|
|
|
638 }
|
|
|
639
|
|
10
|
640 r->exten.data = r->uri_ext;
|
|
0
|
641 }
|
|
|
642
|
|
10
|
643
|
|
0
|
644 if (r->args_start && r->uri_end > r->args_start) {
|
|
|
645 r->args.len = r->uri_end - r->args_start;
|
|
10
|
646 r->args.data = r->args_start;
|
|
0
|
647 }
|
|
|
648
|
|
10
|
649
|
|
|
650 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
|
651 "http request line: \"%V\"", &r->request_line);
|
|
|
652
|
|
0
|
653 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
10
|
654 "http uri: \"%V\"", &r->uri);
|
|
0
|
655
|
|
|
656 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
10
|
657 "http args: \"%V\"", &r->args);
|
|
0
|
658
|
|
|
659 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
10
|
660 "http exten: \"%V\"", &r->exten);
|
|
|
661
|
|
0
|
662 if (r->http_version < NGX_HTTP_VERSION_10) {
|
|
86
|
663
|
|
|
664 if (rev->timer_set) {
|
|
|
665 ngx_del_timer(rev);
|
|
|
666 }
|
|
|
667
|
|
|
668 #if (NGX_STAT_STUB)
|
|
110
|
669 ngx_atomic_fetch_add(ngx_stat_reading, -1);
|
|
86
|
670 r->stat_reading = 0;
|
|
110
|
671 ngx_atomic_fetch_add(ngx_stat_writing, 1);
|
|
86
|
672 r->stat_writing = 1;
|
|
|
673 #endif
|
|
|
674
|
|
|
675 rev->handler = ngx_http_request_handler;
|
|
|
676 c->write->handler = ngx_http_request_handler;
|
|
58
|
677 r->read_event_handler = ngx_http_block_read;
|
|
86
|
678
|
|
0
|
679 ngx_http_handler(r);
|
|
86
|
680
|
|
0
|
681 return;
|
|
|
682 }
|
|
|
683
|
|
|
684
|
|
|
685 if (ngx_list_init(&r->headers_in.headers, r->pool, 20,
|
|
130
|
686 sizeof(ngx_table_elt_t))
|
|
|
687 == NGX_ERROR)
|
|
0
|
688 {
|
|
|
689 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
690 return;
|
|
|
691 }
|
|
|
692
|
|
|
693
|
|
48
|
694 if (ngx_array_init(&r->headers_in.cookies, r->pool, 2,
|
|
130
|
695 sizeof(ngx_table_elt_t *))
|
|
|
696 == NGX_ERROR)
|
|
0
|
697 {
|
|
|
698 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
699 return;
|
|
|
700 }
|
|
|
701
|
|
32
|
702 c->log->action = "reading client request headers";
|
|
0
|
703
|
|
58
|
704 rev->handler = ngx_http_process_request_headers;
|
|
0
|
705 ngx_http_process_request_headers(rev);
|
|
|
706
|
|
|
707 return;
|
|
54
|
708 }
|
|
|
709
|
|
|
710 if (rc != NGX_AGAIN) {
|
|
0
|
711
|
|
|
712 /* there was error while a request line parsing */
|
|
|
713
|
|
54
|
714 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
|
715 ngx_http_client_errors[rc - NGX_HTTP_CLIENT_ERROR]);
|
|
|
716 ngx_http_finalize_request(r, NGX_HTTP_BAD_REQUEST);
|
|
0
|
717 return;
|
|
|
718 }
|
|
|
719
|
|
|
720 /* NGX_AGAIN: a request line parsing is still incomplete */
|
|
|
721
|
|
|
722 if (r->header_in->pos == r->header_in->end) {
|
|
|
723
|
|
|
724 rv = ngx_http_alloc_large_header_buffer(r, 1);
|
|
|
725
|
|
|
726 if (rv == NGX_ERROR) {
|
|
|
727 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
728 return;
|
|
|
729 }
|
|
|
730
|
|
|
731 if (rv == NGX_DECLINED) {
|
|
54
|
732 r->request_line.len = r->header_in->end - r->request_start;
|
|
|
733 r->request_line.data = r->request_start;
|
|
|
734
|
|
|
735 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
|
736 "client sent too long URI");
|
|
|
737 ngx_http_finalize_request(r, NGX_HTTP_REQUEST_URI_TOO_LARGE);
|
|
0
|
738 return;
|
|
|
739 }
|
|
|
740 }
|
|
|
741 }
|
|
|
742 }
|
|
|
743
|
|
|
744
|
|
50
|
745 static void
|
|
|
746 ngx_http_process_request_headers(ngx_event_t *rev)
|
|
0
|
747 {
|
|
56
|
748 ssize_t n;
|
|
|
749 ngx_int_t rc, rv;
|
|
|
750 ngx_str_t header;
|
|
198
|
751 ngx_uint_t i;
|
|
58
|
752 ngx_table_elt_t *h;
|
|
56
|
753 ngx_connection_t *c;
|
|
|
754 ngx_http_header_t *hh;
|
|
|
755 ngx_http_request_t *r;
|
|
60
|
756 ngx_http_core_srv_conf_t *cscf;
|
|
56
|
757 ngx_http_core_main_conf_t *cmcf;
|
|
0
|
758
|
|
|
759 c = rev->data;
|
|
|
760 r = c->data;
|
|
|
761
|
|
|
762 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, rev->log, 0,
|
|
|
763 "http process request header line");
|
|
|
764
|
|
|
765 if (rev->timedout) {
|
|
54
|
766 ngx_log_error(NGX_LOG_INFO, c->log, NGX_ETIMEDOUT, "client timed out");
|
|
|
767 c->timedout = 1;
|
|
|
768 ngx_http_close_request(r, NGX_HTTP_REQUEST_TIME_OUT);
|
|
0
|
769 return;
|
|
|
770 }
|
|
|
771
|
|
56
|
772 cmcf = ngx_http_get_module_main_conf(r, ngx_http_core_module);
|
|
60
|
773 cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
|
|
56
|
774
|
|
0
|
775 rc = NGX_AGAIN;
|
|
|
776
|
|
|
777 for ( ;; ) {
|
|
|
778
|
|
|
779 if (rc == NGX_AGAIN) {
|
|
|
780
|
|
|
781 if (r->header_in->pos == r->header_in->end) {
|
|
|
782
|
|
|
783 rv = ngx_http_alloc_large_header_buffer(r, 0);
|
|
|
784
|
|
|
785 if (rv == NGX_ERROR) {
|
|
|
786 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
787 return;
|
|
|
788 }
|
|
|
789
|
|
|
790 if (rv == NGX_DECLINED) {
|
|
54
|
791 header.len = r->header_in->end - r->header_name_start;
|
|
|
792 header.data = r->header_name_start;
|
|
80
|
793
|
|
|
794 if (header.len > NGX_MAX_ERROR_STR - 300) {
|
|
|
795 header.len = NGX_MAX_ERROR_STR - 300;
|
|
|
796 header.data[header.len++] = '.';
|
|
|
797 header.data[header.len++] = '.';
|
|
|
798 header.data[header.len++] = '.';
|
|
|
799 }
|
|
|
800
|
|
54
|
801 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
|
802 "client sent too long header line: \"%V\"",
|
|
|
803 &header);
|
|
|
804 ngx_http_close_request(r, NGX_HTTP_BAD_REQUEST);
|
|
0
|
805 return;
|
|
|
806 }
|
|
|
807 }
|
|
|
808
|
|
|
809 n = ngx_http_read_request_header(r);
|
|
|
810
|
|
|
811 if (n == NGX_AGAIN || n == NGX_ERROR) {
|
|
|
812 return;
|
|
|
813 }
|
|
|
814 }
|
|
|
815
|
|
|
816 rc = ngx_http_parse_header_line(r, r->header_in);
|
|
|
817
|
|
|
818 if (rc == NGX_OK) {
|
|
|
819
|
|
60
|
820 if (r->invalid_header && cscf->ignore_invalid_headers) {
|
|
52
|
821
|
|
|
822 /* there was error while a header line parsing */
|
|
|
823
|
|
|
824 header.len = r->header_end - r->header_name_start;
|
|
|
825 header.data = r->header_name_start;
|
|
|
826
|
|
54
|
827 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
|
828 "client sent invalid header line: \"%V\"",
|
|
52
|
829 &header);
|
|
|
830 continue;
|
|
|
831 }
|
|
|
832
|
|
0
|
833 /* a header line has been parsed successfully */
|
|
|
834
|
|
50
|
835 h = ngx_list_push(&r->headers_in.headers);
|
|
|
836 if (h == NULL) {
|
|
0
|
837 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
838 return;
|
|
|
839 }
|
|
|
840
|
|
56
|
841 h->hash = r->header_hash;
|
|
|
842
|
|
0
|
843 h->key.len = r->header_name_end - r->header_name_start;
|
|
|
844 h->key.data = r->header_name_start;
|
|
|
845 h->key.data[h->key.len] = '\0';
|
|
|
846
|
|
|
847 h->value.len = r->header_end - r->header_start;
|
|
|
848 h->value.data = r->header_start;
|
|
|
849 h->value.data[h->value.len] = '\0';
|
|
|
850
|
|
198
|
851 h->lowcase_key = ngx_palloc(r->pool, h->key.len);
|
|
|
852 if (h->lowcase_key == NULL) {
|
|
|
853 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
854 return;
|
|
|
855 }
|
|
|
856
|
|
|
857 if (h->key.len == r->lowcase_index) {
|
|
|
858 ngx_memcpy(h->lowcase_key, r->lowcase_header, h->key.len);
|
|
|
859
|
|
|
860 } else {
|
|
|
861 for (i = 0; i < h->key.len; i++) {
|
|
216
|
862 h->lowcase_key[i] = ngx_tolower(h->key.data[i]);
|
|
0
|
863 }
|
|
|
864 }
|
|
|
865
|
|
198
|
866 hh = ngx_hash_find(&cmcf->headers_in_hash, h->hash,
|
|
|
867 h->lowcase_key, h->key.len);
|
|
|
868
|
|
|
869 if (hh && hh->handler(r, h, hh->offset) != NGX_OK) {
|
|
|
870 return;
|
|
|
871 }
|
|
|
872
|
|
0
|
873 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
10
|
874 "http header: \"%V: %V\"",
|
|
|
875 &h->key, &h->value);
|
|
0
|
876
|
|
|
877 continue;
|
|
54
|
878 }
|
|
|
879
|
|
|
880 if (rc == NGX_HTTP_PARSE_HEADER_DONE) {
|
|
0
|
881
|
|
|
882 /* a whole header has been parsed successfully */
|
|
|
883
|
|
|
884 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
885 "http header done");
|
|
|
886
|
|
24
|
887 r->request_length += r->header_in->pos - r->header_in->start;
|
|
|
888
|
|
0
|
889 r->http_state = NGX_HTTP_PROCESS_REQUEST_STATE;
|
|
|
890
|
|
|
891 rc = ngx_http_process_request_header(r);
|
|
|
892
|
|
|
893 if (rc != NGX_OK) {
|
|
|
894 return;
|
|
|
895 }
|
|
|
896
|
|
|
897 if (rev->timer_set) {
|
|
|
898 ngx_del_timer(rev);
|
|
|
899 }
|
|
|
900
|
|
|
901 #if (NGX_STAT_STUB)
|
|
110
|
902 ngx_atomic_fetch_add(ngx_stat_reading, -1);
|
|
0
|
903 r->stat_reading = 0;
|
|
110
|
904 ngx_atomic_fetch_add(ngx_stat_writing, 1);
|
|
0
|
905 r->stat_writing = 1;
|
|
|
906 #endif
|
|
|
907
|
|
58
|
908 rev->handler = ngx_http_request_handler;
|
|
|
909 c->write->handler = ngx_http_request_handler;
|
|
|
910 r->read_event_handler = ngx_http_block_read;
|
|
|
911
|
|
0
|
912 ngx_http_handler(r);
|
|
86
|
913
|
|
0
|
914 return;
|
|
54
|
915 }
|
|
|
916
|
|
|
917 if (rc == NGX_AGAIN) {
|
|
|
918
|
|
|
919 /* a header line parsing is still not complete */
|
|
|
920
|
|
|
921 continue;
|
|
0
|
922 }
|
|
|
923
|
|
54
|
924 /* rc == NGX_HTTP_PARSE_INVALID_HEADER: "\r" is not followed by "\n" */
|
|
|
925
|
|
|
926 header.len = r->header_end - r->header_name_start;
|
|
|
927 header.data = r->header_name_start;
|
|
|
928 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
|
929 "client sent invalid header line: \"%V\\r...\"",
|
|
|
930 &header);
|
|
|
931 ngx_http_close_request(r, NGX_HTTP_BAD_REQUEST);
|
|
|
932 return;
|
|
0
|
933 }
|
|
|
934 }
|
|
|
935
|
|
|
936
|
|
50
|
937 static ssize_t
|
|
|
938 ngx_http_read_request_header(ngx_http_request_t *r)
|
|
0
|
939 {
|
|
|
940 ssize_t n;
|
|
|
941 ngx_event_t *rev;
|
|
230
|
942 ngx_connection_t *c;
|
|
0
|
943 ngx_http_core_srv_conf_t *cscf;
|
|
|
944
|
|
230
|
945 c = r->connection;
|
|
|
946 rev = c->read;
|
|
0
|
947
|
|
|
948 n = r->header_in->last - r->header_in->pos;
|
|
|
949
|
|
|
950 if (n > 0) {
|
|
|
951 return n;
|
|
|
952 }
|
|
|
953
|
|
72
|
954 if (rev->ready) {
|
|
230
|
955 n = c->recv(c, r->header_in->last,
|
|
|
956 r->header_in->end - r->header_in->last);
|
|
72
|
957 } else {
|
|
|
958 n = NGX_AGAIN;
|
|
0
|
959 }
|
|
|
960
|
|
|
961 if (n == NGX_AGAIN) {
|
|
|
962 if (!r->header_timeout_set) {
|
|
|
963 cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
|
|
|
964 ngx_add_timer(rev, cscf->client_header_timeout);
|
|
|
965 r->header_timeout_set = 1;
|
|
|
966 }
|
|
|
967
|
|
|
968 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) {
|
|
|
969 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
970 return NGX_ERROR;
|
|
|
971 }
|
|
|
972
|
|
|
973 return NGX_AGAIN;
|
|
|
974 }
|
|
|
975
|
|
|
976 if (n == 0) {
|
|
230
|
977 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
0
|
978 "client closed prematurely connection");
|
|
|
979 }
|
|
|
980
|
|
|
981 if (n == 0 || n == NGX_ERROR) {
|
|
272
|
982 c->error = 1;
|
|
|
983 c->log->action = "reading client request headers";
|
|
|
984
|
|
|
985 ngx_http_finalize_request(r, NGX_HTTP_BAD_REQUEST);
|
|
0
|
986 return NGX_ERROR;
|
|
|
987 }
|
|
|
988
|
|
|
989 r->header_in->last += n;
|
|
|
990
|
|
|
991 return n;
|
|
|
992 }
|
|
|
993
|
|
|
994
|
|
50
|
995 static ngx_int_t
|
|
|
996 ngx_http_alloc_large_header_buffer(ngx_http_request_t *r,
|
|
|
997 ngx_uint_t request_line)
|
|
0
|
998 {
|
|
|
999 u_char *old, *new;
|
|
|
1000 ngx_buf_t *b;
|
|
|
1001 ngx_http_connection_t *hc;
|
|
|
1002 ngx_http_core_srv_conf_t *cscf;
|
|
|
1003
|
|
|
1004 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1005 "http alloc large header buffer");
|
|
|
1006
|
|
|
1007 if (request_line && r->state == 0) {
|
|
|
1008
|
|
|
1009 /* the client fills up the buffer with "\r\n" */
|
|
|
1010
|
|
24
|
1011 r->request_length += r->header_in->end - r->header_in->start;
|
|
|
1012
|
|
0
|
1013 r->header_in->pos = r->header_in->start;
|
|
|
1014 r->header_in->last = r->header_in->start;
|
|
|
1015
|
|
|
1016 return NGX_OK;
|
|
|
1017 }
|
|
|
1018
|
|
|
1019 old = request_line ? r->request_start : r->header_name_start;
|
|
|
1020
|
|
|
1021 cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
|
|
|
1022
|
|
|
1023 if (r->state != 0
|
|
|
1024 && (size_t) (r->header_in->pos - old)
|
|
|
1025 >= cscf->large_client_header_buffers.size)
|
|
|
1026 {
|
|
|
1027 return NGX_DECLINED;
|
|
|
1028 }
|
|
|
1029
|
|
|
1030 hc = r->http_connection;
|
|
|
1031
|
|
|
1032 if (hc->nfree) {
|
|
|
1033 b = hc->free[--hc->nfree];
|
|
|
1034
|
|
|
1035 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
10
|
1036 "http large header free: %p %uz",
|
|
0
|
1037 b->pos, b->end - b->last);
|
|
|
1038
|
|
|
1039 } else if (hc->nbusy < cscf->large_client_header_buffers.num) {
|
|
|
1040
|
|
|
1041 if (hc->busy == NULL) {
|
|
|
1042 hc->busy = ngx_palloc(r->connection->pool,
|
|
|
1043 cscf->large_client_header_buffers.num * sizeof(ngx_buf_t *));
|
|
|
1044 if (hc->busy == NULL) {
|
|
|
1045 return NGX_ERROR;
|
|
|
1046 }
|
|
|
1047 }
|
|
|
1048
|
|
|
1049 b = ngx_create_temp_buf(r->connection->pool,
|
|
|
1050 cscf->large_client_header_buffers.size);
|
|
|
1051 if (b == NULL) {
|
|
|
1052 return NGX_ERROR;
|
|
|
1053 }
|
|
|
1054
|
|
|
1055 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
10
|
1056 "http large header alloc: %p %uz",
|
|
0
|
1057 b->pos, b->end - b->last);
|
|
|
1058
|
|
|
1059 } else {
|
|
|
1060 return NGX_DECLINED;
|
|
|
1061 }
|
|
|
1062
|
|
|
1063 hc->busy[hc->nbusy++] = b;
|
|
|
1064
|
|
|
1065 if (r->state == 0) {
|
|
|
1066 /*
|
|
|
1067 * r->state == 0 means that a header line was parsed successfully
|
|
|
1068 * and we do not need to copy incomplete header line and
|
|
|
1069 * to relocate the parser header pointers
|
|
|
1070 */
|
|
|
1071
|
|
24
|
1072 r->request_length += r->header_in->end - r->header_in->start;
|
|
|
1073
|
|
0
|
1074 r->header_in = b;
|
|
|
1075
|
|
|
1076 return NGX_OK;
|
|
|
1077 }
|
|
|
1078
|
|
|
1079 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1080 "http large header copy: %d", r->header_in->pos - old);
|
|
|
1081
|
|
24
|
1082 r->request_length += old - r->header_in->start;
|
|
|
1083
|
|
0
|
1084 new = b->start;
|
|
|
1085
|
|
|
1086 ngx_memcpy(new, old, r->header_in->pos - old);
|
|
|
1087
|
|
|
1088 b->pos = new + (r->header_in->pos - old);
|
|
|
1089 b->last = new + (r->header_in->pos - old);
|
|
|
1090
|
|
|
1091 if (request_line) {
|
|
|
1092 r->request_start = new;
|
|
|
1093
|
|
|
1094 if (r->request_end) {
|
|
|
1095 r->request_end = new + (r->request_end - old);
|
|
|
1096 }
|
|
|
1097
|
|
|
1098 r->method_end = new + (r->method_end - old);
|
|
|
1099
|
|
|
1100 r->uri_start = new + (r->uri_start - old);
|
|
|
1101 r->uri_end = new + (r->uri_end - old);
|
|
|
1102
|
|
|
1103 if (r->schema_start) {
|
|
|
1104 r->schema_start = new + (r->schema_start - old);
|
|
|
1105 r->schema_end = new + (r->schema_end - old);
|
|
|
1106 }
|
|
|
1107
|
|
|
1108 if (r->host_start) {
|
|
|
1109 r->host_start = new + (r->host_start - old);
|
|
270
|
1110 if (r->host_end) {
|
|
|
1111 r->host_end = new + (r->host_end - old);
|
|
|
1112 }
|
|
0
|
1113 }
|
|
|
1114
|
|
|
1115 if (r->port_start) {
|
|
|
1116 r->port_start = new + (r->port_start - old);
|
|
|
1117 r->port_end = new + (r->port_end - old);
|
|
|
1118 }
|
|
|
1119
|
|
|
1120 if (r->uri_ext) {
|
|
|
1121 r->uri_ext = new + (r->uri_ext - old);
|
|
|
1122 }
|
|
|
1123
|
|
|
1124 if (r->args_start) {
|
|
|
1125 r->args_start = new + (r->args_start - old);
|
|
|
1126 }
|
|
|
1127
|
|
|
1128 } else {
|
|
|
1129 r->header_name_start = new;
|
|
|
1130 r->header_name_end = new + (r->header_name_end - old);
|
|
|
1131 r->header_start = new + (r->header_start - old);
|
|
|
1132 r->header_end = new + (r->header_end - old);
|
|
|
1133 }
|
|
|
1134
|
|
|
1135 r->header_in = b;
|
|
|
1136
|
|
|
1137 return NGX_OK;
|
|
|
1138 }
|
|
|
1139
|
|
|
1140
|
|
50
|
1141 static ngx_int_t
|
|
58
|
1142 ngx_http_process_header_line(ngx_http_request_t *r, ngx_table_elt_t *h,
|
|
|
1143 ngx_uint_t offset)
|
|
|
1144 {
|
|
|
1145 ngx_table_elt_t **ph;
|
|
|
1146
|
|
|
1147 ph = (ngx_table_elt_t **) ((char *) &r->headers_in + offset);
|
|
|
1148
|
|
|
1149 if (*ph == NULL) {
|
|
|
1150 *ph = h;
|
|
|
1151 }
|
|
|
1152
|
|
|
1153 return NGX_OK;
|
|
|
1154 }
|
|
|
1155
|
|
|
1156
|
|
|
1157 static ngx_int_t
|
|
72
|
1158 ngx_http_process_unique_header_line(ngx_http_request_t *r, ngx_table_elt_t *h,
|
|
|
1159 ngx_uint_t offset)
|
|
|
1160 {
|
|
|
1161 ngx_table_elt_t **ph;
|
|
|
1162
|
|
|
1163 ph = (ngx_table_elt_t **) ((char *) &r->headers_in + offset);
|
|
|
1164
|
|
|
1165 if (*ph == NULL) {
|
|
|
1166 *ph = h;
|
|
|
1167 return NGX_OK;
|
|
|
1168 }
|
|
|
1169
|
|
|
1170 ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
|
|
230
|
1171 "client sent duplicate header line: \"%V: %V\", "
|
|
|
1172 "previous value: \"%V: %V\"",
|
|
|
1173 &h->key, &h->value, &(*ph)->key, &(*ph)->value);
|
|
72
|
1174
|
|
|
1175 ngx_http_finalize_request(r, NGX_HTTP_BAD_REQUEST);
|
|
|
1176
|
|
|
1177 return NGX_ERROR;
|
|
|
1178 }
|
|
|
1179
|
|
|
1180
|
|
|
1181 static ngx_int_t
|
|
58
|
1182 ngx_http_process_cookie(ngx_http_request_t *r, ngx_table_elt_t *h,
|
|
|
1183 ngx_uint_t offset)
|
|
|
1184 {
|
|
|
1185 ngx_table_elt_t **cookie;
|
|
|
1186
|
|
|
1187 cookie = ngx_array_push(&r->headers_in.cookies);
|
|
72
|
1188 if (cookie) {
|
|
|
1189 *cookie = h;
|
|
|
1190 return NGX_OK;
|
|
58
|
1191 }
|
|
|
1192
|
|
72
|
1193 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
1194
|
|
|
1195 return NGX_ERROR;
|
|
58
|
1196 }
|
|
|
1197
|
|
|
1198
|
|
|
1199 static ngx_int_t
|
|
50
|
1200 ngx_http_process_request_header(ngx_http_request_t *r)
|
|
0
|
1201 {
|
|
196
|
1202 size_t len;
|
|
|
1203 u_char *ua, *user_agent, ch;
|
|
198
|
1204 ngx_uint_t hash;
|
|
196
|
1205 #if (NGX_HTTP_SSL)
|
|
|
1206 long rc;
|
|
|
1207 ngx_http_ssl_srv_conf_t *sscf;
|
|
|
1208 #endif
|
|
0
|
1209
|
|
|
1210 if (r->headers_in.host) {
|
|
198
|
1211
|
|
|
1212 hash = 0;
|
|
|
1213
|
|
0
|
1214 for (len = 0; len < r->headers_in.host->value.len; len++) {
|
|
26
|
1215 ch = r->headers_in.host->value.data[len];
|
|
|
1216
|
|
|
1217 if (ch == ':') {
|
|
0
|
1218 break;
|
|
|
1219 }
|
|
26
|
1220
|
|
198
|
1221 ch = ngx_tolower(ch);
|
|
|
1222 r->headers_in.host->value.data[len] = ch;
|
|
|
1223 hash = ngx_hash(hash, ch);
|
|
0
|
1224 }
|
|
54
|
1225
|
|
198
|
1226 if (len && r->headers_in.host->value.data[len - 1] == '.') {
|
|
58
|
1227 len--;
|
|
198
|
1228 hash = ngx_hash_key(r->headers_in.host->value.data, len);
|
|
58
|
1229 }
|
|
|
1230
|
|
0
|
1231 r->headers_in.host_name_len = len;
|
|
|
1232
|
|
198
|
1233 if (r->virtual_names) {
|
|
|
1234 ngx_http_find_virtual_server(r, r->virtual_names, hash);
|
|
|
1235 }
|
|
0
|
1236
|
|
|
1237 } else {
|
|
|
1238 if (r->http_version > NGX_HTTP_VERSION_10) {
|
|
54
|
1239 ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
|
|
|
1240 "client sent HTTP/1.1 request without \"Host\" header");
|
|
|
1241 ngx_http_finalize_request(r, NGX_HTTP_BAD_REQUEST);
|
|
|
1242 return NGX_ERROR;
|
|
0
|
1243 }
|
|
54
|
1244
|
|
0
|
1245 r->headers_in.host_name_len = 0;
|
|
|
1246 }
|
|
|
1247
|
|
|
1248 if (r->headers_in.content_length) {
|
|
|
1249 r->headers_in.content_length_n =
|
|
212
|
1250 ngx_atoof(r->headers_in.content_length->value.data,
|
|
0
|
1251 r->headers_in.content_length->value.len);
|
|
|
1252
|
|
|
1253 if (r->headers_in.content_length_n == NGX_ERROR) {
|
|
54
|
1254 ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
|
|
|
1255 "client sent invalid \"Content-Length\" header");
|
|
130
|
1256 ngx_http_finalize_request(r, NGX_HTTP_LENGTH_REQUIRED);
|
|
54
|
1257 return NGX_ERROR;
|
|
0
|
1258 }
|
|
|
1259 }
|
|
|
1260
|
|
188
|
1261 if (r->method & (NGX_HTTP_POST|NGX_HTTP_PUT)
|
|
|
1262 && r->headers_in.content_length_n == -1)
|
|
|
1263 {
|
|
54
|
1264 ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
|
|
|
1265 "client sent POST method without \"Content-Length\" header");
|
|
130
|
1266 ngx_http_finalize_request(r, NGX_HTTP_LENGTH_REQUIRED);
|
|
|
1267 return NGX_ERROR;
|
|
|
1268 }
|
|
|
1269
|
|
|
1270 if (r->headers_in.transfer_encoding
|
|
|
1271 && ngx_strstr(r->headers_in.transfer_encoding->value.data, "chunked"))
|
|
|
1272 {
|
|
|
1273 ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
|
|
|
1274 "client sent \"Transfer-Encoding: chunked\" header");
|
|
|
1275 ngx_http_finalize_request(r, NGX_HTTP_LENGTH_REQUIRED);
|
|
54
|
1276 return NGX_ERROR;
|
|
0
|
1277 }
|
|
|
1278
|
|
|
1279 if (r->plain_http) {
|
|
54
|
1280 ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
|
|
|
1281 "client sent plain HTTP request to HTTPS port");
|
|
|
1282 ngx_http_finalize_request(r, NGX_HTTP_TO_HTTPS);
|
|
|
1283 return NGX_ERROR;
|
|
0
|
1284 }
|
|
|
1285
|
|
|
1286 if (r->headers_in.connection) {
|
|
|
1287 if (r->headers_in.connection->value.len == 5
|
|
286
|
1288 && ngx_strcasecmp(r->headers_in.connection->value.data,
|
|
|
1289 (u_char *) "close")
|
|
58
|
1290 == 0)
|
|
0
|
1291 {
|
|
|
1292 r->headers_in.connection_type = NGX_HTTP_CONNECTION_CLOSE;
|
|
|
1293
|
|
|
1294 } else if (r->headers_in.connection->value.len == 10
|
|
|
1295 && ngx_strcasecmp(r->headers_in.connection->value.data,
|
|
286
|
1296 (u_char *) "keep-alive")
|
|
|
1297 == 0)
|
|
0
|
1298 {
|
|
|
1299 r->headers_in.connection_type = NGX_HTTP_CONNECTION_KEEP_ALIVE;
|
|
|
1300
|
|
|
1301 if (r->headers_in.keep_alive) {
|
|
|
1302 r->headers_in.keep_alive_n =
|
|
50
|
1303 ngx_atotm(r->headers_in.keep_alive->value.data,
|
|
0
|
1304 r->headers_in.keep_alive->value.len);
|
|
|
1305 }
|
|
|
1306 }
|
|
|
1307 }
|
|
|
1308
|
|
|
1309 if (r->headers_in.user_agent) {
|
|
|
1310
|
|
|
1311 /*
|
|
|
1312 * check some widespread browsers while the headers are still
|
|
|
1313 * in CPU cache
|
|
|
1314 */
|
|
|
1315
|
|
|
1316 user_agent = r->headers_in.user_agent->value.data;
|
|
|
1317
|
|
|
1318 ua = (u_char *) ngx_strstr(user_agent, "MSIE");
|
|
|
1319
|
|
|
1320 if (ua && ua + 8 < user_agent + r->headers_in.user_agent->value.len) {
|
|
|
1321
|
|
|
1322 r->headers_in.msie = 1;
|
|
|
1323
|
|
|
1324 if (ua[4] == ' ' && ua[5] == '4' && ua[6] == '.') {
|
|
|
1325 r->headers_in.msie4 = 1;
|
|
|
1326 }
|
|
|
1327
|
|
|
1328 #if 0
|
|
|
1329 /* MSIE ignores the SSL "close notify" alert */
|
|
22
|
1330 if (c->ssl) {
|
|
96
|
1331 c->ssl->no_send_shutdown = 1;
|
|
22
|
1332 }
|
|
0
|
1333 #endif
|
|
|
1334 }
|
|
|
1335
|
|
|
1336 if (ngx_strstr(user_agent, "Opera")) {
|
|
|
1337 r->headers_in.opera = 1;
|
|
|
1338 r->headers_in.msie = 0;
|
|
|
1339 r->headers_in.msie4 = 0;
|
|
|
1340 }
|
|
|
1341
|
|
|
1342 if (!r->headers_in.msie && !r->headers_in.opera) {
|
|
|
1343
|
|
|
1344 if (ngx_strstr(user_agent, "Gecko/")) {
|
|
|
1345 r->headers_in.gecko = 1;
|
|
|
1346
|
|
|
1347 } else if (ngx_strstr(user_agent, "Konqueror")) {
|
|
|
1348 r->headers_in.konqueror = 1;
|
|
|
1349 }
|
|
|
1350 }
|
|
|
1351 }
|
|
|
1352
|
|
218
|
1353 #if (NGX_HTTP_SSL)
|
|
|
1354
|
|
|
1355 if (r->connection->ssl) {
|
|
|
1356 sscf = ngx_http_get_module_srv_conf(r, ngx_http_ssl_module);
|
|
|
1357
|
|
|
1358 if (sscf->verify) {
|
|
|
1359 rc = SSL_get_verify_result(r->connection->ssl->connection);
|
|
|
1360
|
|
|
1361 if (rc != X509_V_OK) {
|
|
|
1362 ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
|
|
220
|
1363 "client SSL certificate verify error: (%l:%s)",
|
|
218
|
1364 rc, X509_verify_cert_error_string(rc));
|
|
|
1365 ngx_http_finalize_request(r, NGX_HTTPS_CERT_ERROR);
|
|
|
1366 return NGX_ERROR;
|
|
|
1367 }
|
|
|
1368
|
|
|
1369 if (SSL_get_peer_certificate(r->connection->ssl->connection)
|
|
|
1370 == NULL)
|
|
|
1371 {
|
|
|
1372 ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
|
|
|
1373 "client sent no required SSL certificate");
|
|
|
1374 ngx_http_finalize_request(r, NGX_HTTPS_NO_CERT);
|
|
|
1375 return NGX_ERROR;
|
|
|
1376 }
|
|
|
1377 }
|
|
|
1378 }
|
|
|
1379
|
|
|
1380 #endif
|
|
|
1381
|
|
0
|
1382 return NGX_OK;
|
|
|
1383 }
|
|
|
1384
|
|
|
1385
|
|
162
|
1386 static void
|
|
198
|
1387 ngx_http_find_virtual_server(ngx_http_request_t *r,
|
|
|
1388 ngx_http_virtual_names_t *vn, ngx_uint_t hash)
|
|
26
|
1389 {
|
|
142
|
1390 size_t len;
|
|
|
1391 u_char *host;
|
|
|
1392 ngx_http_core_loc_conf_t *clcf;
|
|
|
1393 ngx_http_core_srv_conf_t *cscf;
|
|
|
1394
|
|
258
|
1395 host = r->host_start;
|
|
|
1396
|
|
|
1397 if (host == NULL) {
|
|
|
1398 host = r->headers_in.host->value.data;
|
|
|
1399 len = r->headers_in.host_name_len;
|
|
|
1400
|
|
|
1401 } else {
|
|
|
1402 len = r->host_end - host;
|
|
|
1403 }
|
|
142
|
1404
|
|
|
1405 if (vn->hash.buckets) {
|
|
198
|
1406 cscf = ngx_hash_find(&vn->hash, hash, host, len);
|
|
142
|
1407 if (cscf) {
|
|
58
|
1408 goto found;
|
|
26
|
1409 }
|
|
|
1410 }
|
|
|
1411
|
|
142
|
1412 if (vn->dns_wildcards && vn->dns_wildcards->hash.buckets) {
|
|
|
1413 cscf = ngx_hash_find_wildcard(vn->dns_wildcards, host, len);
|
|
|
1414
|
|
|
1415 if (cscf) {
|
|
|
1416 goto found;
|
|
26
|
1417 }
|
|
|
1418 }
|
|
|
1419
|
|
212
|
1420 cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
|
|
|
1421
|
|
|
1422 if (cscf->wildcard) {
|
|
|
1423 r->server_name.len = len;
|
|
|
1424 r->server_name.data = host;
|
|
|
1425 }
|
|
|
1426
|
|
162
|
1427 return;
|
|
58
|
1428
|
|
|
1429 found:
|
|
|
1430
|
|
142
|
1431 r->server_name.len = len;
|
|
|
1432 r->server_name.data = host;
|
|
|
1433
|
|
|
1434 r->srv_conf = cscf->ctx->srv_conf;
|
|
|
1435 r->loc_conf = cscf->ctx->loc_conf;
|
|
58
|
1436
|
|
|
1437 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
1438 r->connection->log->file = clcf->err_log->file;
|
|
|
1439
|
|
|
1440 if (!(r->connection->log->log_level & NGX_LOG_DEBUG_CONNECTION)) {
|
|
|
1441 r->connection->log->log_level = clcf->err_log->log_level;
|
|
26
|
1442 }
|
|
|
1443
|
|
162
|
1444 return;
|
|
26
|
1445 }
|
|
|
1446
|
|
|
1447
|
|
58
|
1448 static void
|
|
|
1449 ngx_http_request_handler(ngx_event_t *ev)
|
|
|
1450 {
|
|
|
1451 ngx_connection_t *c;
|
|
|
1452 ngx_http_request_t *r;
|
|
214
|
1453 ngx_http_log_ctx_t *ctx;
|
|
58
|
1454
|
|
|
1455 c = ev->data;
|
|
|
1456 r = c->data;
|
|
|
1457
|
|
214
|
1458 ctx = c->log->data;
|
|
|
1459 ctx->current_request = r;
|
|
|
1460
|
|
58
|
1461 if (ev->write) {
|
|
|
1462 r->write_event_handler(r);
|
|
|
1463
|
|
|
1464 } else {
|
|
|
1465 r->read_event_handler(r);
|
|
|
1466 }
|
|
|
1467 }
|
|
|
1468
|
|
|
1469
|
|
50
|
1470 void
|
|
58
|
1471 ngx_http_finalize_request(ngx_http_request_t *r, ngx_int_t rc)
|
|
0
|
1472 {
|
|
58
|
1473 ngx_http_request_t *pr;
|
|
214
|
1474 ngx_http_log_ctx_t *ctx;
|
|
0
|
1475 ngx_http_core_loc_conf_t *clcf;
|
|
|
1476
|
|
58
|
1477 if (rc == NGX_DONE) {
|
|
118
|
1478 /* the request pool may be already destroyed */
|
|
58
|
1479 return;
|
|
|
1480 }
|
|
|
1481
|
|
132
|
1482 ngx_log_debug3(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1483 "http finalize request: %d, \"%V?%V\"",
|
|
|
1484 rc, &r->uri, &r->args);
|
|
|
1485
|
|
230
|
1486 if (rc == NGX_DECLINED) {
|
|
|
1487 r->content_handler = NULL;
|
|
|
1488 r->write_event_handler = ngx_http_core_run_phases;
|
|
|
1489 ngx_http_core_run_phases(r);
|
|
|
1490 return;
|
|
|
1491 }
|
|
|
1492
|
|
248
|
1493 if (r != r->main && r->post_subrequest) {
|
|
|
1494 rc = r->post_subrequest->handler(r, r->post_subrequest->data, rc);
|
|
216
|
1495 }
|
|
|
1496
|
|
162
|
1497 if (rc == NGX_ERROR
|
|
|
1498 || rc == NGX_HTTP_REQUEST_TIME_OUT
|
|
|
1499 || r->connection->error)
|
|
|
1500 {
|
|
282
|
1501 if (rc > 0 && r->headers_out.status == 0) {
|
|
|
1502 r->headers_out.status = rc;
|
|
190
|
1503 }
|
|
|
1504
|
|
162
|
1505 if (ngx_http_post_action(r) == NGX_OK) {
|
|
|
1506 return;
|
|
|
1507 }
|
|
|
1508
|
|
118
|
1509 ngx_http_close_request(r, 0);
|
|
0
|
1510 return;
|
|
|
1511 }
|
|
|
1512
|
|
186
|
1513 if (rc >= NGX_HTTP_SPECIAL_RESPONSE
|
|
|
1514 || rc == NGX_HTTP_CREATED
|
|
|
1515 || rc == NGX_HTTP_NO_CONTENT)
|
|
|
1516 {
|
|
136
|
1517 if (rc == NGX_HTTP_CLOSE) {
|
|
|
1518 ngx_http_close_request(r, rc);
|
|
|
1519 return;
|
|
|
1520 }
|
|
|
1521
|
|
146
|
1522 if (r == r->main) {
|
|
118
|
1523 if (r->connection->read->timer_set) {
|
|
|
1524 ngx_del_timer(r->connection->read);
|
|
|
1525 }
|
|
|
1526
|
|
|
1527 if (r->connection->write->timer_set) {
|
|
|
1528 ngx_del_timer(r->connection->write);
|
|
|
1529 }
|
|
|
1530 }
|
|
|
1531
|
|
|
1532 ngx_http_finalize_request(r, ngx_http_special_response_handler(r, rc));
|
|
|
1533 return;
|
|
|
1534 }
|
|
|
1535
|
|
146
|
1536 if (r != r->main || rc == NGX_AGAIN) {
|
|
74
|
1537 if (ngx_http_set_write_handler(r) != NGX_OK) {
|
|
|
1538 return;
|
|
|
1539 }
|
|
58
|
1540 }
|
|
|
1541
|
|
|
1542 r->done = 1;
|
|
|
1543
|
|
|
1544 if (r != r->connection->data) {
|
|
132
|
1545 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1546 "http finalize non-active request: \"%V?%V\"",
|
|
|
1547 &r->uri, &r->args);
|
|
58
|
1548 return;
|
|
|
1549 }
|
|
|
1550
|
|
146
|
1551 if (r != r->main) {
|
|
58
|
1552
|
|
|
1553 pr = r->parent;
|
|
|
1554
|
|
132
|
1555 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1556 "http parent request: \"%V?%V\"", &pr->uri, &pr->args);
|
|
76
|
1557
|
|
58
|
1558 if (rc != NGX_AGAIN) {
|
|
146
|
1559 r->connection->data = pr;
|
|
58
|
1560 }
|
|
|
1561
|
|
214
|
1562 ctx = r->connection->log->data;
|
|
|
1563 ctx->current_request = pr;
|
|
|
1564
|
|
58
|
1565 if (pr->postponed) {
|
|
|
1566
|
|
132
|
1567 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1568 "http request: \"%V?%V\" has postponed",
|
|
|
1569 &pr->uri, &pr->args);
|
|
76
|
1570
|
|
58
|
1571 if (rc != NGX_AGAIN && pr->postponed->request == r) {
|
|
|
1572 pr->postponed = pr->postponed->next;
|
|
146
|
1573 }
|
|
|
1574
|
|
|
1575 if (r->fast_subrequest) {
|
|
194
|
1576
|
|
|
1577 if (rc == NGX_AGAIN) {
|
|
|
1578 r->fast_subrequest = 0;
|
|
|
1579 }
|
|
|
1580
|
|
146
|
1581 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1582 "http fast subrequest: \"%V?%V\" done",
|
|
|
1583 &r->uri, &r->args);
|
|
|
1584 return;
|
|
58
|
1585 }
|
|
|
1586
|
|
194
|
1587 if (rc != NGX_AGAIN) {
|
|
|
1588 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1589 "http wake parent request: \"%V?%V\"",
|
|
|
1590 &pr->uri, &pr->args);
|
|
|
1591
|
|
|
1592 pr->write_event_handler(pr);
|
|
|
1593 }
|
|
58
|
1594 }
|
|
|
1595
|
|
|
1596 return;
|
|
|
1597 }
|
|
0
|
1598
|
|
118
|
1599 if (rc == NGX_AGAIN) {
|
|
0
|
1600 return;
|
|
76
|
1601 }
|
|
|
1602
|
|
146
|
1603 if (r->connection->buffered) {
|
|
74
|
1604 (void) ngx_http_set_write_handler(r);
|
|
0
|
1605 return;
|
|
|
1606 }
|
|
|
1607
|
|
178
|
1608 if (!r->post_action) {
|
|
|
1609 r->request_complete = 1;
|
|
|
1610 }
|
|
|
1611
|
|
162
|
1612 if (ngx_http_post_action(r) == NGX_OK) {
|
|
126
|
1613 return;
|
|
|
1614 }
|
|
|
1615
|
|
0
|
1616 if (r->connection->read->timer_set) {
|
|
|
1617 ngx_del_timer(r->connection->read);
|
|
|
1618 }
|
|
|
1619
|
|
|
1620 if (r->connection->write->timer_set) {
|
|
|
1621 r->connection->write->delayed = 0;
|
|
|
1622 ngx_del_timer(r->connection->write);
|
|
|
1623 }
|
|
|
1624
|
|
138
|
1625 if (r->connection->destroyed) {
|
|
|
1626 return;
|
|
|
1627 }
|
|
|
1628
|
|
162
|
1629 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
0
|
1630
|
|
|
1631 if (!ngx_terminate
|
|
|
1632 && !ngx_exiting
|
|
|
1633 && r->keepalive != 0
|
|
|
1634 && clcf->keepalive_timeout > 0)
|
|
|
1635 {
|
|
|
1636 ngx_http_set_keepalive(r);
|
|
|
1637 return;
|
|
|
1638
|
|
|
1639 } else if (r->lingering_close && clcf->lingering_timeout > 0) {
|
|
|
1640 ngx_http_set_lingering_close(r);
|
|
|
1641 return;
|
|
|
1642 }
|
|
|
1643
|
|
|
1644 ngx_http_close_request(r, 0);
|
|
|
1645 }
|
|
|
1646
|
|
|
1647
|
|
74
|
1648 static ngx_int_t
|
|
50
|
1649 ngx_http_set_write_handler(ngx_http_request_t *r)
|
|
0
|
1650 {
|
|
|
1651 ngx_event_t *wev;
|
|
|
1652 ngx_http_core_loc_conf_t *clcf;
|
|
|
1653
|
|
58
|
1654 r->http_state = NGX_HTTP_WRITING_REQUEST_STATE;
|
|
|
1655
|
|
286
|
1656 r->read_event_handler = ngx_http_block_read;
|
|
74
|
1657 r->write_event_handler = ngx_http_writer;
|
|
|
1658
|
|
0
|
1659 wev = r->connection->write;
|
|
|
1660
|
|
|
1661 if (wev->ready && wev->delayed) {
|
|
74
|
1662 return NGX_OK;
|
|
0
|
1663 }
|
|
|
1664
|
|
58
|
1665 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
0
|
1666 if (!wev->delayed) {
|
|
|
1667 ngx_add_timer(wev, clcf->send_timeout);
|
|
|
1668 }
|
|
|
1669
|
|
2
|
1670 if (ngx_handle_write_event(wev, clcf->send_lowat) == NGX_ERROR) {
|
|
0
|
1671 ngx_http_close_request(r, 0);
|
|
74
|
1672 return NGX_ERROR;
|
|
0
|
1673 }
|
|
74
|
1674
|
|
|
1675 return NGX_OK;
|
|
0
|
1676 }
|
|
|
1677
|
|
|
1678
|
|
58
|
1679 static void
|
|
|
1680 ngx_http_writer(ngx_http_request_t *r)
|
|
0
|
1681 {
|
|
|
1682 int rc;
|
|
58
|
1683 ngx_event_t *wev;
|
|
0
|
1684 ngx_connection_t *c;
|
|
|
1685 ngx_http_core_loc_conf_t *clcf;
|
|
|
1686
|
|
58
|
1687 c = r->connection;
|
|
|
1688 wev = c->write;
|
|
|
1689
|
|
132
|
1690 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, wev->log, 0,
|
|
|
1691 "http writer handler: \"%V?%V\"", &r->uri, &r->args);
|
|
0
|
1692
|
|
|
1693 if (wev->timedout) {
|
|
|
1694 if (!wev->delayed) {
|
|
54
|
1695 ngx_log_error(NGX_LOG_INFO, c->log, NGX_ETIMEDOUT,
|
|
|
1696 "client timed out");
|
|
|
1697 c->timedout = 1;
|
|
116
|
1698
|
|
162
|
1699 ngx_http_finalize_request(r, NGX_HTTP_REQUEST_TIME_OUT);
|
|
0
|
1700 return;
|
|
|
1701 }
|
|
|
1702
|
|
|
1703 wev->timedout = 0;
|
|
|
1704 wev->delayed = 0;
|
|
|
1705
|
|
|
1706 if (!wev->ready) {
|
|
102
|
1707 clcf = ngx_http_get_module_loc_conf(r->main, ngx_http_core_module);
|
|
0
|
1708 ngx_add_timer(wev, clcf->send_timeout);
|
|
|
1709
|
|
2
|
1710 if (ngx_handle_write_event(wev, clcf->send_lowat) == NGX_ERROR) {
|
|
118
|
1711 ngx_http_close_request(r, 0);
|
|
0
|
1712 }
|
|
|
1713
|
|
|
1714 return;
|
|
|
1715 }
|
|
|
1716
|
|
|
1717 } else {
|
|
|
1718 if (wev->delayed) {
|
|
|
1719 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, wev->log, 0,
|
|
|
1720 "http writer delayed");
|
|
|
1721
|
|
102
|
1722 clcf = ngx_http_get_module_loc_conf(r->main, ngx_http_core_module);
|
|
2
|
1723
|
|
|
1724 if (ngx_handle_write_event(wev, clcf->send_lowat) == NGX_ERROR) {
|
|
118
|
1725 ngx_http_close_request(r, 0);
|
|
0
|
1726 }
|
|
|
1727
|
|
|
1728 return;
|
|
|
1729 }
|
|
|
1730 }
|
|
|
1731
|
|
132
|
1732 rc = ngx_http_output_filter(r, NULL);
|
|
|
1733
|
|
|
1734 if (c->destroyed) {
|
|
|
1735 return;
|
|
58
|
1736 }
|
|
|
1737
|
|
132
|
1738 ngx_log_debug3(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
|
1739 "http writer output filter: %d, \"%V?%V\"",
|
|
|
1740 rc, &r->uri, &r->args);
|
|
0
|
1741
|
|
|
1742 if (rc == NGX_AGAIN) {
|
|
102
|
1743 clcf = ngx_http_get_module_loc_conf(r->main, ngx_http_core_module);
|
|
0
|
1744 if (!wev->ready && !wev->delayed) {
|
|
|
1745 ngx_add_timer(wev, clcf->send_timeout);
|
|
|
1746 }
|
|
|
1747
|
|
2
|
1748 if (ngx_handle_write_event(wev, clcf->send_lowat) == NGX_ERROR) {
|
|
118
|
1749 ngx_http_close_request(r, 0);
|
|
0
|
1750 }
|
|
|
1751
|
|
254
|
1752 if (r == r->main || r->buffered) {
|
|
146
|
1753 return;
|
|
|
1754 }
|
|
|
1755
|
|
|
1756 rc = NGX_OK;
|
|
0
|
1757 }
|
|
|
1758
|
|
132
|
1759 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, wev->log, 0,
|
|
|
1760 "http writer done: \"%V?%V\"", &r->uri, &r->args);
|
|
0
|
1761
|
|
|
1762 ngx_http_finalize_request(r, rc);
|
|
|
1763 }
|
|
|
1764
|
|
|
1765
|
|
50
|
1766 static void
|
|
58
|
1767 ngx_http_block_read(ngx_http_request_t *r)
|
|
0
|
1768 {
|
|
276
|
1769 int n;
|
|
|
1770 char buf[1];
|
|
|
1771 ngx_err_t err;
|
|
|
1772 ngx_event_t *rev;
|
|
|
1773 ngx_connection_t *c;
|
|
|
1774
|
|
|
1775 c = r->connection;
|
|
|
1776 rev = c->read;
|
|
|
1777
|
|
|
1778 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "http read blocked");
|
|
|
1779
|
|
|
1780 #if (NGX_HAVE_KQUEUE)
|
|
|
1781
|
|
|
1782 if (ngx_event_flags & NGX_USE_KQUEUE_EVENT) {
|
|
|
1783
|
|
|
1784 if (!rev->pending_eof) {
|
|
|
1785 return;
|
|
|
1786 }
|
|
|
1787
|
|
|
1788 rev->eof = 1;
|
|
|
1789 c->error = 1;
|
|
|
1790 err = rev->kq_errno;
|
|
|
1791
|
|
|
1792 goto closed;
|
|
|
1793 }
|
|
|
1794
|
|
|
1795 #endif
|
|
|
1796
|
|
|
1797 n = recv(c->fd, buf, 1, MSG_PEEK);
|
|
|
1798
|
|
|
1799 if (n == 0) {
|
|
|
1800 rev->eof = 1;
|
|
|
1801 c->error = 1;
|
|
|
1802 err = 0;
|
|
|
1803
|
|
|
1804 goto closed;
|
|
|
1805
|
|
|
1806 } else if (n == -1) {
|
|
|
1807 err = ngx_socket_errno;
|
|
|
1808
|
|
|
1809 if (err != NGX_EAGAIN) {
|
|
|
1810 rev->eof = 1;
|
|
|
1811 c->error = 1;
|
|
|
1812
|
|
|
1813 goto closed;
|
|
|
1814 }
|
|
|
1815 }
|
|
0
|
1816
|
|
|
1817 /* aio does not call this handler */
|
|
|
1818
|
|
276
|
1819 if ((ngx_event_flags & NGX_USE_LEVEL_EVENT) && rev->active) {
|
|
|
1820
|
|
|
1821 if (ngx_del_event(rev, NGX_READ_EVENT, 0) == NGX_ERROR) {
|
|
0
|
1822 ngx_http_close_request(r, 0);
|
|
|
1823 }
|
|
|
1824 }
|
|
276
|
1825
|
|
|
1826 return;
|
|
|
1827
|
|
|
1828 closed:
|
|
|
1829
|
|
|
1830 if (err) {
|
|
|
1831 rev->error = 1;
|
|
|
1832 }
|
|
|
1833
|
|
|
1834 ngx_log_error(NGX_LOG_INFO, c->log, err,
|
|
|
1835 "client closed prematurely connection");
|
|
|
1836
|
|
286
|
1837 ngx_http_finalize_request(r, 0);
|
|
0
|
1838 }
|
|
|
1839
|
|
|
1840
|
|
50
|
1841 static void
|
|
|
1842 ngx_http_set_keepalive(ngx_http_request_t *r)
|
|
0
|
1843 {
|
|
2
|
1844 int tcp_nodelay;
|
|
0
|
1845 ngx_int_t i;
|
|
|
1846 ngx_buf_t *b, *f;
|
|
|
1847 ngx_event_t *rev, *wev;
|
|
|
1848 ngx_connection_t *c;
|
|
|
1849 ngx_http_connection_t *hc;
|
|
|
1850 ngx_http_core_srv_conf_t *cscf;
|
|
|
1851 ngx_http_core_loc_conf_t *clcf;
|
|
|
1852
|
|
|
1853 c = r->connection;
|
|
|
1854 rev = c->read;
|
|
|
1855
|
|
|
1856 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "set http keepalive handler");
|
|
|
1857
|
|
32
|
1858 c->log->action = "closing request";
|
|
0
|
1859
|
|
|
1860 hc = r->http_connection;
|
|
|
1861 b = r->header_in;
|
|
|
1862
|
|
|
1863 if (b->pos < b->last) {
|
|
|
1864
|
|
|
1865 /* the pipelined request */
|
|
|
1866
|
|
|
1867 if (b != c->buffer) {
|
|
|
1868
|
|
4
|
1869 /*
|
|
|
1870 * If the large header buffers were allocated while the previous
|
|
|
1871 * request processing then we do not use c->buffer for
|
|
|
1872 * the pipelined request (see ngx_http_init_request()).
|
|
126
|
1873 *
|
|
4
|
1874 * Now we would move the large header buffers to the free list.
|
|
|
1875 */
|
|
0
|
1876
|
|
|
1877 cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
|
|
|
1878
|
|
|
1879 if (hc->free == NULL) {
|
|
|
1880 hc->free = ngx_palloc(c->pool,
|
|
|
1881 cscf->large_client_header_buffers.num * sizeof(ngx_buf_t *));
|
|
|
1882
|
|
|
1883 if (hc->free == NULL) {
|
|
26
|
1884 ngx_http_close_request(r, 0);
|
|
0
|
1885 return;
|
|
|
1886 }
|
|
|
1887 }
|
|
|
1888
|
|
|
1889 for (i = 0; i < hc->nbusy - 1; i++) {
|
|
|
1890 f = hc->busy[i];
|
|
|
1891 hc->free[hc->nfree++] = f;
|
|
|
1892 f->pos = f->start;
|
|
|
1893 f->last = f->start;
|
|
|
1894 }
|
|
|
1895
|
|
|
1896 hc->busy[0] = b;
|
|
|
1897 hc->nbusy = 1;
|
|
|
1898 }
|
|
|
1899 }
|
|
|
1900
|
|
26
|
1901 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
1902
|
|
118
|
1903 ngx_http_request_done(r, 0);
|
|
|
1904
|
|
0
|
1905 c->data = hc;
|
|
|
1906
|
|
|
1907 ngx_add_timer(rev, clcf->keepalive_timeout);
|
|
|
1908
|
|
58
|
1909 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) {
|
|
0
|
1910 ngx_http_close_connection(c);
|
|
|
1911 return;
|
|
|
1912 }
|
|
|
1913
|
|
|
1914 wev = c->write;
|
|
58
|
1915 wev->handler = ngx_http_empty_handler;
|
|
0
|
1916
|
|
|
1917 if (b->pos < b->last) {
|
|
|
1918
|
|
|
1919 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "pipelined request");
|
|
|
1920
|
|
116
|
1921 #if (NGX_STAT_STUB)
|
|
|
1922 ngx_atomic_fetch_add(ngx_stat_reading, 1);
|
|
|
1923 #endif
|
|
|
1924
|
|
0
|
1925 hc->pipeline = 1;
|
|
32
|
1926 c->log->action = "reading client pipelined request line";
|
|
116
|
1927
|
|
0
|
1928 ngx_http_init_request(rev);
|
|
|
1929 return;
|
|
|
1930 }
|
|
|
1931
|
|
|
1932 hc->pipeline = 0;
|
|
|
1933
|
|
4
|
1934 /*
|
|
|
1935 * To keep a memory footprint as small as possible for an idle
|
|
|
1936 * keepalive connection we try to free the ngx_http_request_t and
|
|
|
1937 * c->buffer's memory if they were allocated outside the c->pool.
|
|
|
1938 * The large header buffers are always allocated outside the c->pool and
|
|
|
1939 * are freed too.
|
|
|
1940 */
|
|
|
1941
|
|
0
|
1942 if (ngx_pfree(c->pool, r) == NGX_OK) {
|
|
|
1943 hc->request = NULL;
|
|
|
1944 }
|
|
|
1945
|
|
|
1946 b = c->buffer;
|
|
|
1947
|
|
|
1948 if (ngx_pfree(c->pool, b->start) == NGX_OK) {
|
|
4
|
1949
|
|
|
1950 /*
|
|
|
1951 * the special note for ngx_http_keepalive_handler() that
|
|
|
1952 * c->buffer's memory was freed
|
|
|
1953 */
|
|
|
1954
|
|
0
|
1955 b->pos = NULL;
|
|
|
1956
|
|
|
1957 } else {
|
|
|
1958 b->pos = b->start;
|
|
|
1959 b->last = b->start;
|
|
|
1960 }
|
|
|
1961
|
|
10
|
1962 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, c->log, 0, "hc free: %p %d",
|
|
0
|
1963 hc->free, hc->nfree);
|
|
|
1964
|
|
|
1965 if (hc->free) {
|
|
|
1966 for (i = 0; i < hc->nfree; i++) {
|
|
|
1967 ngx_pfree(c->pool, hc->free[i]);
|
|
|
1968 hc->free[i] = NULL;
|
|
|
1969 }
|
|
|
1970
|
|
|
1971 hc->nfree = 0;
|
|
|
1972 }
|
|
|
1973
|
|
10
|
1974 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, c->log, 0, "hc busy: %p %d",
|
|
0
|
1975 hc->busy, hc->nbusy);
|
|
|
1976
|
|
|
1977 if (hc->busy) {
|
|
|
1978 for (i = 0; i < hc->nbusy; i++) {
|
|
|
1979 ngx_pfree(c->pool, hc->busy[i]);
|
|
|
1980 hc->busy[i] = NULL;
|
|
|
1981 }
|
|
|
1982
|
|
|
1983 hc->nbusy = 0;
|
|
|
1984 }
|
|
|
1985
|
|
58
|
1986 rev->handler = ngx_http_keepalive_handler;
|
|
0
|
1987
|
|
132
|
1988 if (wev->active && (ngx_event_flags & NGX_USE_LEVEL_EVENT)) {
|
|
|
1989 if (ngx_del_event(wev, NGX_WRITE_EVENT, 0) == NGX_ERROR) {
|
|
|
1990 ngx_http_close_connection(c);
|
|
|
1991 return;
|
|
0
|
1992 }
|
|
|
1993 }
|
|
|
1994
|
|
32
|
1995 c->log->action = "keepalive";
|
|
0
|
1996
|
|
|
1997 if (c->tcp_nopush == NGX_TCP_NOPUSH_SET) {
|
|
50
|
1998 if (ngx_tcp_push(c->fd) == -1) {
|
|
0
|
1999 ngx_connection_error(c, ngx_socket_errno, ngx_tcp_push_n " failed");
|
|
|
2000 ngx_http_close_connection(c);
|
|
|
2001 return;
|
|
|
2002 }
|
|
2
|
2003
|
|
0
|
2004 c->tcp_nopush = NGX_TCP_NOPUSH_UNSET;
|
|
22
|
2005 tcp_nodelay = ngx_tcp_nodelay_and_tcp_nopush ? 1 : 0;
|
|
2
|
2006
|
|
|
2007 } else {
|
|
22
|
2008 tcp_nodelay = 1;
|
|
|
2009 }
|
|
|
2010
|
|
32
|
2011 if (tcp_nodelay
|
|
|
2012 && clcf->tcp_nodelay
|
|
|
2013 && c->tcp_nodelay == NGX_TCP_NODELAY_UNSET)
|
|
|
2014 {
|
|
22
|
2015 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "tcp_nodelay");
|
|
|
2016
|
|
|
2017 if (setsockopt(c->fd, IPPROTO_TCP, TCP_NODELAY,
|
|
184
|
2018 (const void *) &tcp_nodelay, sizeof(int))
|
|
|
2019 == -1)
|
|
22
|
2020 {
|
|
|
2021 ngx_connection_error(c, ngx_socket_errno,
|
|
|
2022 "setsockopt(TCP_NODELAY) failed");
|
|
|
2023 ngx_http_close_connection(c);
|
|
|
2024 return;
|
|
2
|
2025 }
|
|
22
|
2026
|
|
32
|
2027 c->tcp_nodelay = NGX_TCP_NODELAY_SET;
|
|
0
|
2028 }
|
|
|
2029
|
|
|
2030 #if 0
|
|
4
|
2031 /* if ngx_http_request_t was freed then we need some other place */
|
|
0
|
2032 r->http_state = NGX_HTTP_KEEPALIVE_STATE;
|
|
|
2033 #endif
|
|
|
2034
|
|
|
2035 if (rev->ready) {
|
|
|
2036 ngx_http_keepalive_handler(rev);
|
|
|
2037 }
|
|
|
2038 }
|
|
|
2039
|
|
|
2040
|
|
50
|
2041 static void
|
|
|
2042 ngx_http_keepalive_handler(ngx_event_t *rev)
|
|
0
|
2043 {
|
|
50
|
2044 size_t size;
|
|
|
2045 ssize_t n;
|
|
|
2046 ngx_buf_t *b;
|
|
|
2047 ngx_connection_t *c;
|
|
0
|
2048
|
|
|
2049 c = rev->data;
|
|
|
2050
|
|
|
2051 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "http keepalive handler");
|
|
|
2052
|
|
|
2053 if (rev->timedout) {
|
|
|
2054 ngx_http_close_connection(c);
|
|
|
2055 return;
|
|
|
2056 }
|
|
|
2057
|
|
18
|
2058 #if (NGX_HAVE_KQUEUE)
|
|
0
|
2059
|
|
4
|
2060 if (ngx_event_flags & NGX_USE_KQUEUE_EVENT) {
|
|
136
|
2061 if (rev->pending_eof) {
|
|
32
|
2062 c->log->handler = NULL;
|
|
0
|
2063 ngx_log_error(NGX_LOG_INFO, c->log, rev->kq_errno,
|
|
10
|
2064 "kevent() reported that client %V closed "
|
|
32
|
2065 "keepalive connection", &c->addr_text);
|
|
22
|
2066 #if (NGX_HTTP_SSL)
|
|
|
2067 if (c->ssl) {
|
|
96
|
2068 c->ssl->no_send_shutdown = 1;
|
|
22
|
2069 }
|
|
|
2070 #endif
|
|
0
|
2071 ngx_http_close_connection(c);
|
|
|
2072 return;
|
|
|
2073 }
|
|
|
2074 }
|
|
|
2075
|
|
|
2076 #endif
|
|
|
2077
|
|
|
2078 b = c->buffer;
|
|
|
2079 size = b->end - b->start;
|
|
|
2080
|
|
|
2081 if (b->pos == NULL) {
|
|
4
|
2082
|
|
|
2083 /*
|
|
|
2084 * The c->buffer's memory was freed by ngx_http_set_keepalive().
|
|
|
2085 * However, the c->buffer->start and c->buffer->end were not changed
|
|
|
2086 * to keep the buffer size.
|
|
|
2087 */
|
|
|
2088
|
|
50
|
2089 b->pos = ngx_palloc(c->pool, size);
|
|
|
2090 if (b->pos == NULL) {
|
|
0
|
2091 ngx_http_close_connection(c);
|
|
|
2092 return;
|
|
|
2093 }
|
|
|
2094
|
|
|
2095 b->start = b->pos;
|
|
|
2096 b->last = b->pos;
|
|
|
2097 b->end = b->pos + size;
|
|
|
2098 }
|
|
|
2099
|
|
|
2100 /*
|
|
|
2101 * MSIE closes a keepalive connection with RST flag
|
|
|
2102 * so we ignore ECONNRESET here.
|
|
|
2103 */
|
|
|
2104
|
|
|
2105 c->log_error = NGX_ERROR_IGNORE_ECONNRESET;
|
|
|
2106 ngx_set_socket_errno(0);
|
|
|
2107
|
|
|
2108 n = c->recv(c, b->last, size);
|
|
|
2109 c->log_error = NGX_ERROR_INFO;
|
|
|
2110
|
|
|
2111 if (n == NGX_AGAIN) {
|
|
58
|
2112 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) {
|
|
24
|
2113 ngx_http_close_connection(c);
|
|
|
2114 }
|
|
|
2115
|
|
0
|
2116 return;
|
|
|
2117 }
|
|
|
2118
|
|
|
2119 if (n == NGX_ERROR) {
|
|
|
2120 ngx_http_close_connection(c);
|
|
|
2121 return;
|
|
|
2122 }
|
|
|
2123
|
|
32
|
2124 c->log->handler = NULL;
|
|
0
|
2125
|
|
|
2126 if (n == 0) {
|
|
|
2127 ngx_log_error(NGX_LOG_INFO, c->log, ngx_socket_errno,
|
|
32
|
2128 "client %V closed keepalive connection", &c->addr_text);
|
|
0
|
2129 ngx_http_close_connection(c);
|
|
|
2130 return;
|
|
|
2131 }
|
|
|
2132
|
|
|
2133 b->last += n;
|
|
32
|
2134
|
|
116
|
2135 #if (NGX_STAT_STUB)
|
|
|
2136 ngx_atomic_fetch_add(ngx_stat_reading, 1);
|
|
|
2137 #endif
|
|
|
2138
|
|
32
|
2139 c->log->handler = ngx_http_log_error;
|
|
|
2140 c->log->action = "reading client request line";
|
|
0
|
2141
|
|
|
2142 ngx_http_init_request(rev);
|
|
|
2143 }
|
|
|
2144
|
|
|
2145
|
|
50
|
2146 static void
|
|
|
2147 ngx_http_set_lingering_close(ngx_http_request_t *r)
|
|
126
|
2148 {
|
|
0
|
2149 ngx_event_t *rev, *wev;
|
|
|
2150 ngx_connection_t *c;
|
|
|
2151 ngx_http_core_loc_conf_t *clcf;
|
|
|
2152
|
|
|
2153 c = r->connection;
|
|
|
2154
|
|
|
2155 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
2156
|
|
|
2157 rev = c->read;
|
|
58
|
2158 rev->handler = ngx_http_lingering_close_handler;
|
|
0
|
2159
|
|
106
|
2160 r->lingering_time = ngx_time() + (time_t) (clcf->lingering_time / 1000);
|
|
0
|
2161 ngx_add_timer(rev, clcf->lingering_timeout);
|
|
|
2162
|
|
58
|
2163 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) {
|
|
0
|
2164 ngx_http_close_request(r, 0);
|
|
|
2165 return;
|
|
|
2166 }
|
|
|
2167
|
|
|
2168 wev = c->write;
|
|
58
|
2169 wev->handler = ngx_http_empty_handler;
|
|
0
|
2170
|
|
132
|
2171 if (wev->active && (ngx_event_flags & NGX_USE_LEVEL_EVENT)) {
|
|
|
2172 if (ngx_del_event(wev, NGX_WRITE_EVENT, 0) == NGX_ERROR) {
|
|
|
2173 ngx_http_close_request(r, 0);
|
|
|
2174 return;
|
|
0
|
2175 }
|
|
|
2176 }
|
|
|
2177
|
|
|
2178 if (ngx_shutdown_socket(c->fd, NGX_WRITE_SHUTDOWN) == -1) {
|
|
|
2179 ngx_connection_error(c, ngx_socket_errno,
|
|
|
2180 ngx_shutdown_socket_n " failed");
|
|
|
2181 ngx_http_close_request(r, 0);
|
|
|
2182 return;
|
|
|
2183 }
|
|
|
2184
|
|
|
2185 if (rev->ready) {
|
|
|
2186 ngx_http_lingering_close_handler(rev);
|
|
|
2187 }
|
|
|
2188 }
|
|
|
2189
|
|
|
2190
|
|
50
|
2191 static void
|
|
|
2192 ngx_http_lingering_close_handler(ngx_event_t *rev)
|
|
0
|
2193 {
|
|
|
2194 ssize_t n;
|
|
|
2195 ngx_msec_t timer;
|
|
|
2196 ngx_connection_t *c;
|
|
|
2197 ngx_http_request_t *r;
|
|
|
2198 ngx_http_core_loc_conf_t *clcf;
|
|
|
2199 u_char buffer[NGX_HTTP_LINGERING_BUFFER_SIZE];
|
|
|
2200
|
|
|
2201 c = rev->data;
|
|
|
2202 r = c->data;
|
|
|
2203
|
|
|
2204 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
|
2205 "http lingering close handler");
|
|
|
2206
|
|
|
2207 if (rev->timedout) {
|
|
126
|
2208 c->timedout = 1;
|
|
0
|
2209 ngx_http_close_request(r, 0);
|
|
|
2210 return;
|
|
|
2211 }
|
|
|
2212
|
|
|
2213 timer = r->lingering_time - ngx_time();
|
|
|
2214 if (timer <= 0) {
|
|
|
2215 ngx_http_close_request(r, 0);
|
|
|
2216 return;
|
|
|
2217 }
|
|
|
2218
|
|
|
2219 do {
|
|
|
2220 n = c->recv(c, buffer, NGX_HTTP_LINGERING_BUFFER_SIZE);
|
|
|
2221
|
|
|
2222 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0, "lingering read: %d", n);
|
|
|
2223
|
|
|
2224 if (n == NGX_ERROR || n == 0) {
|
|
|
2225 ngx_http_close_request(r, 0);
|
|
|
2226 return;
|
|
|
2227 }
|
|
|
2228
|
|
|
2229 } while (rev->ready);
|
|
|
2230
|
|
58
|
2231 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) {
|
|
26
|
2232 ngx_http_close_request(r, 0);
|
|
24
|
2233 return;
|
|
|
2234 }
|
|
|
2235
|
|
0
|
2236 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
2237
|
|
|
2238 timer *= 1000;
|
|
|
2239
|
|
|
2240 if (timer > clcf->lingering_timeout) {
|
|
|
2241 timer = clcf->lingering_timeout;
|
|
|
2242 }
|
|
|
2243
|
|
|
2244 ngx_add_timer(rev, timer);
|
|
|
2245 }
|
|
|
2246
|
|
|
2247
|
|
50
|
2248 void
|
|
|
2249 ngx_http_empty_handler(ngx_event_t *wev)
|
|
0
|
2250 {
|
|
|
2251 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, wev->log, 0, "http empty handler");
|
|
|
2252
|
|
|
2253 return;
|
|
|
2254 }
|
|
|
2255
|
|
|
2256
|
|
58
|
2257 void
|
|
|
2258 ngx_http_request_empty_handler(ngx_http_request_t *r)
|
|
|
2259 {
|
|
|
2260 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
132
|
2261 "http request empty handler");
|
|
58
|
2262
|
|
|
2263 return;
|
|
|
2264 }
|
|
|
2265
|
|
|
2266
|
|
50
|
2267 ngx_int_t
|
|
130
|
2268 ngx_http_send_special(ngx_http_request_t *r, ngx_uint_t flags)
|
|
0
|
2269 {
|
|
|
2270 ngx_buf_t *b;
|
|
|
2271 ngx_chain_t out;
|
|
|
2272
|
|
50
|
2273 b = ngx_calloc_buf(r->pool);
|
|
|
2274 if (b == NULL) {
|
|
0
|
2275 return NGX_ERROR;
|
|
|
2276 }
|
|
|
2277
|
|
130
|
2278 if (flags & NGX_HTTP_LAST) {
|
|
|
2279 b->last_buf = 1;
|
|
|
2280 }
|
|
|
2281
|
|
|
2282 if (flags & NGX_HTTP_FLUSH) {
|
|
|
2283 b->flush = 1;
|
|
|
2284 }
|
|
|
2285
|
|
0
|
2286 out.buf = b;
|
|
|
2287 out.next = NULL;
|
|
|
2288
|
|
|
2289 return ngx_http_output_filter(r, &out);
|
|
|
2290 }
|
|
|
2291
|
|
|
2292
|
|
162
|
2293 static ngx_int_t
|
|
|
2294 ngx_http_post_action(ngx_http_request_t *r)
|
|
|
2295 {
|
|
|
2296 ngx_http_core_loc_conf_t *clcf;
|
|
|
2297
|
|
|
2298 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
2299
|
|
|
2300 if (clcf->post_action.data == NULL) {
|
|
|
2301 return NGX_DECLINED;
|
|
|
2302 }
|
|
|
2303
|
|
172
|
2304 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
2305 "post action: \"%V\"", &clcf->post_action);
|
|
|
2306
|
|
162
|
2307 r->http_version = NGX_HTTP_VERSION_9;
|
|
|
2308 r->header_only = 1;
|
|
178
|
2309 r->post_action = 1;
|
|
162
|
2310
|
|
262
|
2311 r->read_event_handler = ngx_http_block_read;
|
|
|
2312
|
|
162
|
2313 ngx_http_internal_redirect(r, &clcf->post_action, NULL);
|
|
|
2314
|
|
|
2315 return NGX_OK;
|
|
|
2316 }
|
|
|
2317
|
|
|
2318
|
|
|
2319 static void
|
|
58
|
2320 ngx_http_close_request(ngx_http_request_t *r, ngx_int_t error)
|
|
0
|
2321 {
|
|
188
|
2322 ngx_connection_t *c;
|
|
118
|
2323
|
|
|
2324 c = r->connection;
|
|
188
|
2325
|
|
|
2326 ngx_http_request_done(r->main, error);
|
|
118
|
2327 ngx_http_close_connection(c);
|
|
|
2328 }
|
|
|
2329
|
|
|
2330
|
|
162
|
2331 static void
|
|
118
|
2332 ngx_http_request_done(ngx_http_request_t *r, ngx_int_t error)
|
|
|
2333 {
|
|
|
2334 ngx_log_t *log;
|
|
130
|
2335 ngx_uint_t i, n;
|
|
118
|
2336 struct linger linger;
|
|
188
|
2337 ngx_http_cleanup_t *cln;
|
|
118
|
2338 ngx_http_log_ctx_t *ctx;
|
|
130
|
2339 ngx_http_handler_pt *log_handler;
|
|
118
|
2340 ngx_http_core_loc_conf_t *clcf;
|
|
|
2341 ngx_http_core_main_conf_t *cmcf;
|
|
0
|
2342
|
|
|
2343 log = r->connection->log;
|
|
|
2344
|
|
|
2345 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, log, 0, "http close request");
|
|
|
2346
|
|
|
2347 if (r->pool == NULL) {
|
|
80
|
2348 ngx_log_error(NGX_LOG_ALERT, log, 0, "http request already closed");
|
|
0
|
2349 return;
|
|
|
2350 }
|
|
|
2351
|
|
188
|
2352 for (cln = r->cleanup; cln; cln = cln->next) {
|
|
|
2353 if (cln->handler) {
|
|
|
2354 cln->handler(cln->data);
|
|
|
2355 }
|
|
|
2356 }
|
|
|
2357
|
|
0
|
2358 #if (NGX_STAT_STUB)
|
|
116
|
2359
|
|
0
|
2360 if (r->stat_reading) {
|
|
110
|
2361 ngx_atomic_fetch_add(ngx_stat_reading, -1);
|
|
0
|
2362 }
|
|
|
2363
|
|
|
2364 if (r->stat_writing) {
|
|
110
|
2365 ngx_atomic_fetch_add(ngx_stat_writing, -1);
|
|
0
|
2366 }
|
|
116
|
2367
|
|
0
|
2368 #endif
|
|
|
2369
|
|
|
2370 if (error && r->headers_out.status == 0) {
|
|
|
2371 r->headers_out.status = error;
|
|
|
2372 }
|
|
|
2373
|
|
118
|
2374 cmcf = ngx_http_get_module_main_conf(r, ngx_http_core_module);
|
|
|
2375
|
|
130
|
2376 log_handler = cmcf->phases[NGX_HTTP_LOG_PHASE].handlers.elts;
|
|
|
2377 n = cmcf->phases[NGX_HTTP_LOG_PHASE].handlers.nelts;
|
|
|
2378 for (i = 0; i < n; i++) {
|
|
|
2379 log_handler[i](r);
|
|
118
|
2380 }
|
|
0
|
2381
|
|
|
2382 if (r->connection->timedout) {
|
|
|
2383 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
2384
|
|
|
2385 if (clcf->reset_timedout_connection) {
|
|
58
|
2386 linger.l_onoff = 1;
|
|
|
2387 linger.l_linger = 0;
|
|
0
|
2388
|
|
|
2389 if (setsockopt(r->connection->fd, SOL_SOCKET, SO_LINGER,
|
|
58
|
2390 (const void *) &linger, sizeof(struct linger)) == -1)
|
|
0
|
2391 {
|
|
|
2392 ngx_log_error(NGX_LOG_ALERT, log, ngx_socket_errno,
|
|
|
2393 "setsockopt(SO_LINGER) failed");
|
|
|
2394 }
|
|
|
2395 }
|
|
|
2396 }
|
|
|
2397
|
|
58
|
2398 /* the various request strings were allocated from r->pool */
|
|
0
|
2399 ctx = log->data;
|
|
10
|
2400 ctx->request = NULL;
|
|
0
|
2401
|
|
|
2402 r->request_line.len = 0;
|
|
|
2403
|
|
132
|
2404 r->connection->destroyed = 1;
|
|
|
2405
|
|
0
|
2406 ngx_destroy_pool(r->pool);
|
|
|
2407 }
|
|
|
2408
|
|
|
2409
|
|
80
|
2410 static void
|
|
50
|
2411 ngx_http_close_connection(ngx_connection_t *c)
|
|
0
|
2412 {
|
|
28
|
2413 ngx_pool_t *pool;
|
|
|
2414
|
|
0
|
2415 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
|
2416 "close http connection: %d", c->fd);
|
|
|
2417
|
|
88
|
2418 #if (NGX_HTTP_SSL)
|
|
2
|
2419
|
|
|
2420 if (c->ssl) {
|
|
|
2421 if (ngx_ssl_shutdown(c) == NGX_AGAIN) {
|
|
126
|
2422 c->ssl->handler = ngx_http_close_connection;
|
|
2
|
2423 return;
|
|
|
2424 }
|
|
|
2425 }
|
|
|
2426
|
|
|
2427 #endif
|
|
|
2428
|
|
0
|
2429 #if (NGX_STAT_STUB)
|
|
110
|
2430 ngx_atomic_fetch_add(ngx_stat_active, -1);
|
|
0
|
2431 #endif
|
|
|
2432
|
|
132
|
2433 c->destroyed = 1;
|
|
|
2434
|
|
28
|
2435 pool = c->pool;
|
|
|
2436
|
|
0
|
2437 ngx_close_connection(c);
|
|
28
|
2438
|
|
50
|
2439 ngx_destroy_pool(pool);
|
|
0
|
2440 }
|
|
|
2441
|
|
|
2442
|
|
50
|
2443 static u_char *
|
|
|
2444 ngx_http_log_error(ngx_log_t *log, u_char *buf, size_t len)
|
|
0
|
2445 {
|
|
32
|
2446 u_char *p;
|
|
54
|
2447 ngx_http_request_t *r;
|
|
32
|
2448 ngx_http_log_ctx_t *ctx;
|
|
10
|
2449
|
|
32
|
2450 if (log->action) {
|
|
58
|
2451 p = ngx_snprintf(buf, len, " while %s", log->action);
|
|
10
|
2452 len -= p - buf;
|
|
54
|
2453 buf = p;
|
|
10
|
2454 }
|
|
|
2455
|
|
58
|
2456 ctx = log->data;
|
|
|
2457
|
|
54
|
2458 p = ngx_snprintf(buf, len, ", client: %V", ctx->client);
|
|
58
|
2459 len -= p - buf;
|
|
54
|
2460
|
|
|
2461 r = ctx->request;
|
|
|
2462
|
|
58
|
2463 if (r) {
|
|
214
|
2464 return r->log_handler(r, ctx->current_request, p, len);
|
|
0
|
2465 }
|
|
10
|
2466
|
|
58
|
2467 return p;
|
|
|
2468 }
|
|
|
2469
|
|
|
2470
|
|
|
2471 static u_char *
|
|
214
|
2472 ngx_http_log_error_handler(ngx_http_request_t *r, ngx_http_request_t *sr,
|
|
|
2473 u_char *buf, size_t len)
|
|
58
|
2474 {
|
|
260
|
2475 char *uri_separator;
|
|
|
2476 u_char *p;
|
|
|
2477 ngx_http_upstream_t *u;
|
|
54
|
2478
|
|
|
2479 if (r->server_name.data) {
|
|
|
2480 p = ngx_snprintf(buf, len, ", server: %V", &r->server_name);
|
|
52
|
2481 len -= p - buf;
|
|
54
|
2482 buf = p;
|
|
52
|
2483 }
|
|
|
2484
|
|
54
|
2485 if (r->unparsed_uri.data) {
|
|
|
2486 p = ngx_snprintf(buf, len, ", URL: \"%V\"", &r->unparsed_uri);
|
|
|
2487 len -= p - buf;
|
|
|
2488 buf = p;
|
|
|
2489
|
|
|
2490 } else {
|
|
|
2491 if (r->request_line.data == NULL && r->request_start) {
|
|
|
2492 for (p = r->request_start; p < r->header_in->last; p++) {
|
|
|
2493 if (*p == CR || *p == LF) {
|
|
|
2494 break;
|
|
|
2495 }
|
|
|
2496 }
|
|
|
2497
|
|
|
2498 r->request_line.len = p - r->request_start;
|
|
|
2499 r->request_line.data = r->request_start;
|
|
|
2500 }
|
|
|
2501
|
|
|
2502 if (r->request_line.len) {
|
|
|
2503 p = ngx_snprintf(buf, len, ", request: \"%V\"", &r->request_line);
|
|
|
2504 len -= p - buf;
|
|
|
2505 buf = p;
|
|
|
2506 }
|
|
10
|
2507 }
|
|
|
2508
|
|
214
|
2509 if (r != sr) {
|
|
|
2510 p = ngx_snprintf(buf, len, ", subrequest: \"%V\"", &sr->uri);
|
|
|
2511 len -= p - buf;
|
|
|
2512 buf = p;
|
|
|
2513 }
|
|
|
2514
|
|
|
2515 u = sr->upstream;
|
|
|
2516
|
|
260
|
2517 if (u && u->peer.name) {
|
|
|
2518
|
|
|
2519 uri_separator = "";
|
|
|
2520
|
|
|
2521 #if (NGX_HAVE_UNIX_DOMAIN)
|
|
|
2522 if (u->peer.sockaddr && u->peer.sockaddr->sa_family == AF_UNIX) {
|
|
|
2523 uri_separator = ":";
|
|
|
2524 }
|
|
|
2525 #endif
|
|
214
|
2526
|
|
|
2527 p = ngx_snprintf(buf, len, ", upstream: \"%V%V%s%V\"",
|
|
260
|
2528 &u->conf->schema, u->peer.name,
|
|
|
2529 uri_separator, &u->uri);
|
|
214
|
2530 len -= p - buf;
|
|
|
2531 buf = p;
|
|
|
2532 }
|
|
|
2533
|
|
54
|
2534 if (r->headers_in.host) {
|
|
|
2535 p = ngx_snprintf(buf, len, ", host: \"%V\"",
|
|
|
2536 &r->headers_in.host->value);
|
|
|
2537 len -= p - buf;
|
|
|
2538 buf = p;
|
|
|
2539 }
|
|
|
2540
|
|
|
2541 if (r->headers_in.referer) {
|
|
|
2542 p = ngx_snprintf(buf, len, ", referrer: \"%V\"",
|
|
|
2543 &r->headers_in.referer->value);
|
|
|
2544 buf = p;
|
|
|
2545 }
|
|
|
2546
|
|
|
2547 return buf;
|
|
|
2548 }
|
