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0
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1
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2 /*
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3 * Copyright (C) Igor Sysoev
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4 */
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5
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6
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7 #include <ngx_config.h>
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8 #include <ngx_core.h>
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9 #include <ngx_event.h>
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10 #include <ngx_http.h>
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11
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12
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13 static void ngx_http_init_request(ngx_event_t *ev);
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14 static void ngx_http_process_request_line(ngx_event_t *rev);
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15 static void ngx_http_process_request_headers(ngx_event_t *rev);
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16 static ssize_t ngx_http_read_request_header(ngx_http_request_t *r);
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17 static ngx_int_t ngx_http_alloc_large_header_buffer(ngx_http_request_t *r,
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50
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18 ngx_uint_t request_line);
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58
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19
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20 static ngx_int_t ngx_http_process_header_line(ngx_http_request_t *r,
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21 ngx_table_elt_t *h, ngx_uint_t offset);
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72
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22 static ngx_int_t ngx_http_process_unique_header_line(ngx_http_request_t *r,
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23 ngx_table_elt_t *h, ngx_uint_t offset);
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58
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24 static ngx_int_t ngx_http_process_cookie(ngx_http_request_t *r,
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25 ngx_table_elt_t *h, ngx_uint_t offset);
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26
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0
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27 static ngx_int_t ngx_http_process_request_header(ngx_http_request_t *r);
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198
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28 static void ngx_http_find_virtual_server(ngx_http_request_t *r,
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29 ngx_http_virtual_names_t *vn, ngx_uint_t hash);
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0
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30
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58
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31 static void ngx_http_request_handler(ngx_event_t *ev);
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74
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32 static ngx_int_t ngx_http_set_write_handler(ngx_http_request_t *r);
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58
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33 static void ngx_http_writer(ngx_http_request_t *r);
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34
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35 static void ngx_http_block_read(ngx_http_request_t *r);
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0
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36 static void ngx_http_set_keepalive(ngx_http_request_t *r);
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37 static void ngx_http_keepalive_handler(ngx_event_t *ev);
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38 static void ngx_http_set_lingering_close(ngx_http_request_t *r);
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39 static void ngx_http_lingering_close_handler(ngx_event_t *ev);
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162
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40 static ngx_int_t ngx_http_post_action(ngx_http_request_t *r);
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80
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41 static void ngx_http_close_request(ngx_http_request_t *r, ngx_int_t error);
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118
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42 static void ngx_http_request_done(ngx_http_request_t *r, ngx_int_t error);
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80
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43 static void ngx_http_close_connection(ngx_connection_t *c);
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0
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44
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32
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45 static u_char *ngx_http_log_error(ngx_log_t *log, u_char *buf, size_t len);
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58
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46 static u_char *ngx_http_log_error_handler(ngx_http_request_t *r, u_char *buf,
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47 size_t len);
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0
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48
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88
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49 #if (NGX_HTTP_SSL)
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50 static void ngx_http_ssl_handshake(ngx_event_t *rev);
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96
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51 static void ngx_http_ssl_handshake_handler(ngx_connection_t *c);
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88
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52 #endif
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53
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0
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54
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54
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55 static char *ngx_http_client_errors[] = {
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56
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57 /* NGX_HTTP_PARSE_INVALID_METHOD */
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58 "client sent invalid method",
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59
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60 /* NGX_HTTP_PARSE_INVALID_REQUEST */
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61 "client sent invalid request",
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62
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63 /* NGX_HTTP_PARSE_INVALID_09_METHOD */
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64 "client sent invalid method in HTTP/0.9 request"
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0
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65 };
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66
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67
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68 ngx_http_header_t ngx_http_headers_in[] = {
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58
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69 { ngx_string("Host"), offsetof(ngx_http_headers_in_t, host),
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72
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70 ngx_http_process_unique_header_line },
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58
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71
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72 { ngx_string("Connection"), offsetof(ngx_http_headers_in_t, connection),
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72
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73 ngx_http_process_unique_header_line },
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58
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74
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0
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75 { ngx_string("If-Modified-Since"),
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58
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76 offsetof(ngx_http_headers_in_t, if_modified_since),
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77 ngx_http_process_header_line },
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78
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79 { ngx_string("User-Agent"), offsetof(ngx_http_headers_in_t, user_agent),
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80 ngx_http_process_header_line },
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81
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82 { ngx_string("Referer"), offsetof(ngx_http_headers_in_t, referer),
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83 ngx_http_process_header_line },
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84
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0
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85 { ngx_string("Content-Length"),
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58
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86 offsetof(ngx_http_headers_in_t, content_length),
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72
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87 ngx_http_process_unique_header_line },
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58
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88
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28
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89 { ngx_string("Content-Type"),
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58
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90 offsetof(ngx_http_headers_in_t, content_type),
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91 ngx_http_process_header_line },
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92
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93 { ngx_string("Range"), offsetof(ngx_http_headers_in_t, range),
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94 ngx_http_process_header_line },
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95
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130
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96 { ngx_string("Transfer-Encoding"),
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97 offsetof(ngx_http_headers_in_t, transfer_encoding),
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98 ngx_http_process_header_line },
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99
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0
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100 #if (NGX_HTTP_GZIP)
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101 { ngx_string("Accept-Encoding"),
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58
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102 offsetof(ngx_http_headers_in_t, accept_encoding),
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103 ngx_http_process_header_line },
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104
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105 { ngx_string("Via"), offsetof(ngx_http_headers_in_t, via),
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106 ngx_http_process_header_line },
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0
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107 #endif
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108
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109 { ngx_string("Authorization"),
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58
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110 offsetof(ngx_http_headers_in_t, authorization),
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72
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111 ngx_http_process_unique_header_line },
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58
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112
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113 { ngx_string("Keep-Alive"), offsetof(ngx_http_headers_in_t, keep_alive),
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114 ngx_http_process_header_line },
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0
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115
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122
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116 #if (NGX_HTTP_PROXY || NGX_HTTP_REALIP)
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0
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117 { ngx_string("X-Forwarded-For"),
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58
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118 offsetof(ngx_http_headers_in_t, x_forwarded_for),
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119 ngx_http_process_header_line },
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0
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120 #endif
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28
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121
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122
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122 #if (NGX_HTTP_REALIP)
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123 { ngx_string("X-Real-IP"),
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124 offsetof(ngx_http_headers_in_t, x_real_ip),
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125 ngx_http_process_header_line },
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126 #endif
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127
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38
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128 #if (NGX_HTTP_HEADERS)
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58
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129 { ngx_string("Accept"), offsetof(ngx_http_headers_in_t, accept),
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130 ngx_http_process_header_line },
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131
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38
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132 { ngx_string("Accept-Language"),
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58
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133 offsetof(ngx_http_headers_in_t, accept_language),
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134 ngx_http_process_header_line },
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38
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135 #endif
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136
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186
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137 #if (NGX_HTTP_DAV)
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138 { ngx_string("Depth"), offsetof(ngx_http_headers_in_t, depth),
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139 ngx_http_process_header_line },
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140
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141 { ngx_string("Destination"), offsetof(ngx_http_headers_in_t, destination),
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142 ngx_http_process_header_line },
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143 #endif
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144
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58
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145 { ngx_string("Cookie"), 0, ngx_http_process_cookie },
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146
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147 { ngx_null_string, 0, NULL }
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0
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148 };
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149
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150
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50
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151 void
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152 ngx_http_init_connection(ngx_connection_t *c)
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0
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153 {
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154 ngx_event_t *rev;
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155 ngx_http_log_ctx_t *ctx;
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156
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50
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157 ctx = ngx_palloc(c->pool, sizeof(ngx_http_log_ctx_t));
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158 if (ctx == NULL) {
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0
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159 ngx_http_close_connection(c);
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160 return;
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161 }
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162
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10
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163 ctx->client = &c->addr_text;
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164 ctx->request = NULL;
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32
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165
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166 c->log->connection = c->number;
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167 c->log->handler = ngx_http_log_error;
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0
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168 c->log->data = ctx;
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32
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169 c->log->action = "reading client request line";
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170
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0
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171 c->log_error = NGX_ERROR_INFO;
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172
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173 rev = c->read;
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58
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174 rev->handler = ngx_http_init_request;
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118
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175 c->write->handler = ngx_http_empty_handler;
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0
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176
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116
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177 #if (NGX_STAT_STUB)
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178 ngx_atomic_fetch_add(ngx_stat_reading, 1);
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179 #endif
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180
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0
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181 if (rev->ready) {
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182 /* the deferred accept(), rtsig, aio, iocp */
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183
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160
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184 if (ngx_use_accept_mutex) {
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112
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185 ngx_post_event(rev, &ngx_posted_events);
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0
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186 return;
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187 }
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188
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189 ngx_http_init_request(rev);
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190 return;
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191 }
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192
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193 ngx_add_timer(rev, c->listening->post_accept_timeout);
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194
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195 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) {
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116
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196 #if (NGX_STAT_STUB)
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197 ngx_atomic_fetch_add(ngx_stat_reading, -1);
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198 #endif
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0
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199 ngx_http_close_connection(c);
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200 return;
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201 }
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202 }
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203
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204
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190
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205 static void
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206 ngx_http_init_request(ngx_event_t *rev)
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0
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207 {
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190
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208 socklen_t len;
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122
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209 ngx_uint_t i;
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210 struct sockaddr_in sin;
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211 ngx_connection_t *c;
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212 ngx_http_request_t *r;
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142
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213 ngx_http_in_port_t *hip;
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214 ngx_http_in_addr_t *hia;
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122
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215 ngx_http_log_ctx_t *ctx;
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216 ngx_http_connection_t *hc;
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217 ngx_http_core_srv_conf_t *cscf;
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218 ngx_http_core_loc_conf_t *clcf;
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219 ngx_http_core_main_conf_t *cmcf;
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0
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220 #if (NGX_HTTP_SSL)
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122
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221 ngx_http_ssl_srv_conf_t *sscf;
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0
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222 #endif
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223
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116
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224 #if (NGX_STAT_STUB)
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225 ngx_atomic_fetch_add(ngx_stat_reading, -1);
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226 #endif
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227
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0
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228 c = rev->data;
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229
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230 if (rev->timedout) {
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231 ngx_log_error(NGX_LOG_INFO, c->log, NGX_ETIMEDOUT, "client timed out");
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232
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233 ngx_http_close_connection(c);
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234 return;
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235 }
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236
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237 hc = c->data;
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238
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116
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239 if (hc == NULL) {
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50
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240 hc = ngx_pcalloc(c->pool, sizeof(ngx_http_connection_t));
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241 if (hc == NULL) {
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0
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242 ngx_http_close_connection(c);
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243 return;
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244 }
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245 }
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246
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247 r = hc->request;
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248
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249 if (r) {
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250 ngx_memzero(r, sizeof(ngx_http_request_t));
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251
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252 r->pipeline = hc->pipeline;
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253
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254 if (hc->nbusy) {
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255 r->header_in = hc->busy[0];
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256 }
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257
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258 } else {
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50
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259 r = ngx_pcalloc(c->pool, sizeof(ngx_http_request_t));
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260 if (r == NULL) {
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0
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261 ngx_http_close_connection(c);
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262 return;
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263 }
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264
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265 hc->request = r;
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266 }
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267
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268 c->data = r;
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269 r->http_connection = hc;
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270
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271 c->sent = 0;
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272 r->signature = NGX_HTTP_MODULE;
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273
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274 /* find the server configuration for the address:port */
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275
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276 /* AF_INET only */
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277
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190
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278 hip = c->listening->servers;
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142
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279 hia = hip->addrs;
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280
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281 r->port = hip->port;
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282 r->port_text = &hip->port_text;
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0
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283
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284 i = 0;
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285
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142
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286 if (hip->naddrs > 1) {
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0
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287
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288 /*
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289 * There are several addresses on this port and one of them
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290 * is the "*:port" wildcard so getsockname() is needed to determine
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291 * the server address.
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292 *
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293 * AcceptEx() already gave this address.
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294 */
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295
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10
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296 #if (NGX_WIN32)
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0
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297 if (c->local_sockaddr) {
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298 r->in_addr =
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299 ((struct sockaddr_in *) c->local_sockaddr)->sin_addr.s_addr;
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300
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28
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301 } else
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0
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302 #endif
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28
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303 {
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0
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304 len = sizeof(struct sockaddr_in);
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28
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305 if (getsockname(c->fd, (struct sockaddr *) &sin, &len) == -1) {
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0
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306 ngx_connection_error(c, ngx_socket_errno,
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307 "getsockname() failed");
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308 ngx_http_close_connection(c);
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309 return;
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310 }
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311
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28
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312 r->in_addr = sin.sin_addr.s_addr;
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0
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313 }
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314
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190
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315 /* the last address is "*" */
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0
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316
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142
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317 for ( /* void */ ; i < hip->naddrs - 1; i++) {
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318 if (hia[i].addr == r->in_addr) {
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0
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319 break;
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320 }
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321 }
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322
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323 } else {
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142
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324 r->in_addr = hia[0].addr;
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0
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325 }
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326
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142
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327 r->virtual_names = hia[i].virtual_names;
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0
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328
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329 /* the default server configuration for the address:port */
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142
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330 cscf = hia[i].core_srv_conf;
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0
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331
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332 r->main_conf = cscf->ctx->main_conf;
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333 r->srv_conf = cscf->ctx->srv_conf;
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334 r->loc_conf = cscf->ctx->loc_conf;
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335
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142
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336 r->server_name = cscf->server_name;
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337
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58
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338 rev->handler = ngx_http_process_request_line;
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0
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339
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340 #if (NGX_HTTP_SSL)
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341
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342 sscf = ngx_http_get_module_srv_conf(r, ngx_http_ssl_module);
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343 if (sscf->enable) {
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344
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345 if (c->ssl == NULL) {
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96
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346 if (ngx_ssl_create_connection(&sscf->ssl, c, NGX_SSL_BUFFER)
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56
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347 == NGX_ERROR)
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0
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348 {
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349 ngx_http_close_connection(c);
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350 return;
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351 }
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352
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58
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353 rev->handler = ngx_http_ssl_handshake;
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0
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354 }
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355
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62
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356 r->main_filter_need_in_memory = 1;
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0
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357 }
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358
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359 #endif
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360
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361 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
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362 c->log->file = clcf->err_log->file;
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363 if (!(c->log->log_level & NGX_LOG_DEBUG_CONNECTION)) {
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364 c->log->log_level = clcf->err_log->log_level;
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365 }
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366
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367 if (c->buffer == NULL) {
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368 c->buffer = ngx_create_temp_buf(c->pool,
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369 cscf->client_header_buffer_size);
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|
|
370 if (c->buffer == NULL) {
|
|
|
371 ngx_http_close_connection(c);
|
|
|
372 return;
|
|
|
373 }
|
|
|
374 }
|
|
|
375
|
|
|
376 if (r->header_in == NULL) {
|
|
|
377 r->header_in = c->buffer;
|
|
|
378 }
|
|
|
379
|
|
50
|
380 r->pool = ngx_create_pool(cscf->request_pool_size, c->log);
|
|
|
381 if (r->pool == NULL) {
|
|
0
|
382 ngx_http_close_connection(c);
|
|
|
383 return;
|
|
|
384 }
|
|
|
385
|
|
|
386
|
|
|
387 if (ngx_list_init(&r->headers_out.headers, r->pool, 20,
|
|
130
|
388 sizeof(ngx_table_elt_t))
|
|
|
389 == NGX_ERROR)
|
|
0
|
390 {
|
|
|
391 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
392 return;
|
|
|
393 }
|
|
|
394
|
|
|
395 r->ctx = ngx_pcalloc(r->pool, sizeof(void *) * ngx_http_max_module);
|
|
|
396 if (r->ctx == NULL) {
|
|
|
397 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
398 return;
|
|
|
399 }
|
|
|
400
|
|
122
|
401 cmcf = ngx_http_get_module_main_conf(r, ngx_http_core_module);
|
|
|
402
|
|
|
403 r->variables = ngx_pcalloc(r->pool, cmcf->variables.nelts
|
|
|
404 * sizeof(ngx_http_variable_value_t));
|
|
|
405 if (r->variables == NULL) {
|
|
|
406 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
407 return;
|
|
|
408 }
|
|
|
409
|
|
0
|
410 c->single_connection = 1;
|
|
132
|
411 c->destroyed = 0;
|
|
|
412
|
|
0
|
413 r->connection = c;
|
|
|
414
|
|
102
|
415 r->main = r;
|
|
|
416
|
|
46
|
417 r->start_time = ngx_time();
|
|
|
418
|
|
180
|
419 r->method = NGX_HTTP_UNKNOWN;
|
|
|
420
|
|
0
|
421 r->headers_in.content_length_n = -1;
|
|
|
422 r->headers_in.keep_alive_n = -1;
|
|
|
423 r->headers_out.content_length_n = -1;
|
|
|
424 r->headers_out.last_modified_time = -1;
|
|
|
425
|
|
|
426 r->http_state = NGX_HTTP_READING_REQUEST_STATE;
|
|
|
427
|
|
54
|
428 ctx = c->log->data;
|
|
|
429 ctx->request = r;
|
|
58
|
430 r->log_handler = ngx_http_log_error_handler;
|
|
54
|
431
|
|
0
|
432 #if (NGX_STAT_STUB)
|
|
110
|
433 ngx_atomic_fetch_add(ngx_stat_reading, 1);
|
|
26
|
434 r->stat_reading = 1;
|
|
110
|
435 ngx_atomic_fetch_add(ngx_stat_requests, 1);
|
|
0
|
436 #endif
|
|
|
437
|
|
58
|
438 rev->handler(rev);
|
|
0
|
439 }
|
|
|
440
|
|
|
441
|
|
|
442 #if (NGX_HTTP_SSL)
|
|
|
443
|
|
50
|
444 static void
|
|
|
445 ngx_http_ssl_handshake(ngx_event_t *rev)
|
|
0
|
446 {
|
|
10
|
447 u_char buf[1];
|
|
|
448 ssize_t n;
|
|
0
|
449 ngx_int_t rc;
|
|
|
450 ngx_connection_t *c;
|
|
|
451 ngx_http_request_t *r;
|
|
|
452
|
|
|
453 c = rev->data;
|
|
|
454 r = c->data;
|
|
|
455
|
|
|
456 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, rev->log, 0,
|
|
|
457 "http check ssl handshake");
|
|
|
458
|
|
|
459 if (rev->timedout) {
|
|
54
|
460 ngx_log_error(NGX_LOG_INFO, c->log, NGX_ETIMEDOUT, "client timed out");
|
|
|
461 c->timedout = 1;
|
|
|
462 ngx_http_close_request(r, NGX_HTTP_REQUEST_TIME_OUT);
|
|
0
|
463 return;
|
|
|
464 }
|
|
|
465
|
|
132
|
466 n = recv(c->fd, (char *) buf, 1, MSG_PEEK);
|
|
0
|
467
|
|
|
468 if (n == -1 && ngx_socket_errno == NGX_EAGAIN) {
|
|
|
469 return;
|
|
|
470 }
|
|
|
471
|
|
|
472 if (n == 1) {
|
|
|
473 if (buf[0] == 0x80 /* SSLv2 */ || buf[0] == 0x16 /* SSLv3/TLSv1 */) {
|
|
|
474 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, rev->log, 0,
|
|
10
|
475 "https ssl handshake: 0x%02Xd", buf[0]);
|
|
0
|
476
|
|
|
477 rc = ngx_ssl_handshake(c);
|
|
|
478
|
|
96
|
479 if (rc == NGX_AGAIN) {
|
|
|
480 c->ssl->handler = ngx_http_ssl_handshake_handler;
|
|
0
|
481 return;
|
|
|
482 }
|
|
|
483
|
|
96
|
484 ngx_http_ssl_handshake_handler(c);
|
|
|
485
|
|
|
486 return;
|
|
0
|
487
|
|
|
488 } else {
|
|
|
489 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, rev->log, 0,
|
|
|
490 "plain http");
|
|
|
491
|
|
|
492 r->plain_http = 1;
|
|
|
493 }
|
|
|
494 }
|
|
|
495
|
|
58
|
496 rev->handler = ngx_http_process_request_line;
|
|
0
|
497 ngx_http_process_request_line(rev);
|
|
|
498 }
|
|
|
499
|
|
96
|
500
|
|
|
501 static void
|
|
|
502 ngx_http_ssl_handshake_handler(ngx_connection_t *c)
|
|
|
503 {
|
|
|
504 ngx_http_request_t *r;
|
|
|
505
|
|
|
506 if (c->ssl->handshaked) {
|
|
|
507
|
|
|
508 /*
|
|
|
509 * The majority of browsers do not send the "close notify" alert.
|
|
|
510 * Among them are MSIE, old Mozilla, Netscape 4, Konqueror,
|
|
|
511 * and Links. And what is more, MSIE ignores the server's alert.
|
|
|
512 *
|
|
|
513 * Opera and recent Mozilla send the alert.
|
|
|
514 */
|
|
|
515
|
|
|
516 c->ssl->no_wait_shutdown = 1;
|
|
|
517
|
|
|
518 c->read->handler = ngx_http_process_request_line;
|
|
|
519 /* STUB: epoll edge */ c->write->handler = ngx_http_empty_handler;
|
|
|
520
|
|
|
521 ngx_http_process_request_line(c->read);
|
|
|
522
|
|
|
523 return;
|
|
|
524 }
|
|
|
525
|
|
|
526 r = c->data;
|
|
|
527
|
|
|
528 ngx_http_close_request(r, NGX_HTTP_BAD_REQUEST);
|
|
|
529
|
|
|
530 return;
|
|
|
531 }
|
|
|
532
|
|
|
533
|
|
0
|
534 #endif
|
|
|
535
|
|
|
536
|
|
50
|
537 static void
|
|
|
538 ngx_http_process_request_line(ngx_event_t *rev)
|
|
0
|
539 {
|
|
|
540 ssize_t n;
|
|
|
541 ngx_int_t rc, rv;
|
|
|
542 ngx_connection_t *c;
|
|
|
543 ngx_http_request_t *r;
|
|
|
544 ngx_http_log_ctx_t *ctx;
|
|
|
545
|
|
|
546 c = rev->data;
|
|
|
547 r = c->data;
|
|
|
548
|
|
|
549 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, rev->log, 0,
|
|
|
550 "http process request line");
|
|
|
551
|
|
|
552 if (rev->timedout) {
|
|
54
|
553 ngx_log_error(NGX_LOG_INFO, c->log, NGX_ETIMEDOUT, "client timed out");
|
|
|
554 c->timedout = 1;
|
|
|
555 ngx_http_close_request(r, NGX_HTTP_REQUEST_TIME_OUT);
|
|
0
|
556 return;
|
|
|
557 }
|
|
|
558
|
|
|
559 rc = NGX_AGAIN;
|
|
|
560
|
|
|
561 for ( ;; ) {
|
|
|
562
|
|
|
563 if (rc == NGX_AGAIN) {
|
|
|
564 n = ngx_http_read_request_header(r);
|
|
|
565
|
|
|
566 if (n == NGX_AGAIN || n == NGX_ERROR) {
|
|
|
567 return;
|
|
|
568 }
|
|
|
569 }
|
|
|
570
|
|
|
571 rc = ngx_http_parse_request_line(r, r->header_in);
|
|
|
572
|
|
|
573 if (rc == NGX_OK) {
|
|
|
574
|
|
|
575 /* the request line has been parsed successfully */
|
|
|
576
|
|
10
|
577 r->request_line.len = r->request_end - r->request_start;
|
|
|
578 r->request_line.data = r->request_start;
|
|
|
579
|
|
0
|
580
|
|
|
581 if (r->args_start) {
|
|
|
582 r->uri.len = r->args_start - 1 - r->uri_start;
|
|
|
583 } else {
|
|
|
584 r->uri.len = r->uri_end - r->uri_start;
|
|
|
585 }
|
|
|
586
|
|
18
|
587
|
|
2
|
588 if (r->complex_uri || r->quoted_uri) {
|
|
10
|
589
|
|
50
|
590 r->uri.data = ngx_palloc(r->pool, r->uri.len + 1);
|
|
|
591 if (r->uri.data == NULL) {
|
|
10
|
592 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
593 return;
|
|
|
594 }
|
|
|
595
|
|
0
|
596 rc = ngx_http_parse_complex_uri(r);
|
|
|
597
|
|
54
|
598 if (rc == NGX_HTTP_PARSE_INVALID_REQUEST) {
|
|
|
599 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
|
600 "client sent invalid request");
|
|
|
601 ngx_http_finalize_request(r, NGX_HTTP_BAD_REQUEST);
|
|
0
|
602 return;
|
|
|
603 }
|
|
|
604
|
|
|
605 } else {
|
|
10
|
606 r->uri.data = r->uri_start;
|
|
0
|
607 }
|
|
|
608
|
|
18
|
609
|
|
10
|
610 r->unparsed_uri.len = r->uri_end - r->uri_start;
|
|
|
611 r->unparsed_uri.data = r->uri_start;
|
|
|
612
|
|
0
|
613
|
|
58
|
614 r->method_name.len = r->method_end - r->request_start + 1;
|
|
|
615 r->method_name.data = r->request_line.data;
|
|
0
|
616
|
|
10
|
617
|
|
28
|
618 if (r->http_protocol.data) {
|
|
|
619 r->http_protocol.len = r->request_end - r->http_protocol.data;
|
|
|
620 }
|
|
|
621
|
|
|
622
|
|
0
|
623 if (r->uri_ext) {
|
|
|
624 if (r->args_start) {
|
|
|
625 r->exten.len = r->args_start - 1 - r->uri_ext;
|
|
|
626 } else {
|
|
|
627 r->exten.len = r->uri_end - r->uri_ext;
|
|
|
628 }
|
|
|
629
|
|
10
|
630 r->exten.data = r->uri_ext;
|
|
0
|
631 }
|
|
|
632
|
|
10
|
633
|
|
0
|
634 if (r->args_start && r->uri_end > r->args_start) {
|
|
|
635 r->args.len = r->uri_end - r->args_start;
|
|
10
|
636 r->args.data = r->args_start;
|
|
0
|
637 }
|
|
|
638
|
|
10
|
639
|
|
|
640 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
|
641 "http request line: \"%V\"", &r->request_line);
|
|
|
642
|
|
0
|
643 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
10
|
644 "http uri: \"%V\"", &r->uri);
|
|
0
|
645
|
|
|
646 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
10
|
647 "http args: \"%V\"", &r->args);
|
|
0
|
648
|
|
|
649 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
10
|
650 "http exten: \"%V\"", &r->exten);
|
|
|
651
|
|
0
|
652 if (r->http_version < NGX_HTTP_VERSION_10) {
|
|
86
|
653
|
|
|
654 if (rev->timer_set) {
|
|
|
655 ngx_del_timer(rev);
|
|
|
656 }
|
|
|
657
|
|
|
658 #if (NGX_STAT_STUB)
|
|
110
|
659 ngx_atomic_fetch_add(ngx_stat_reading, -1);
|
|
86
|
660 r->stat_reading = 0;
|
|
110
|
661 ngx_atomic_fetch_add(ngx_stat_writing, 1);
|
|
86
|
662 r->stat_writing = 1;
|
|
|
663 #endif
|
|
|
664
|
|
|
665 rev->handler = ngx_http_request_handler;
|
|
|
666 c->write->handler = ngx_http_request_handler;
|
|
58
|
667 r->read_event_handler = ngx_http_block_read;
|
|
86
|
668
|
|
200
|
669 r->uri_changes = NGX_HTTP_MAX_URI_CHANGES + 1;
|
|
206
|
670 r->subrequests = NGX_HTTP_MAX_SUBREQUESTS + 1;
|
|
200
|
671
|
|
0
|
672 ngx_http_handler(r);
|
|
86
|
673
|
|
0
|
674 return;
|
|
|
675 }
|
|
|
676
|
|
|
677
|
|
|
678 if (ngx_list_init(&r->headers_in.headers, r->pool, 20,
|
|
130
|
679 sizeof(ngx_table_elt_t))
|
|
|
680 == NGX_ERROR)
|
|
0
|
681 {
|
|
|
682 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
683 return;
|
|
|
684 }
|
|
|
685
|
|
|
686
|
|
48
|
687 if (ngx_array_init(&r->headers_in.cookies, r->pool, 2,
|
|
130
|
688 sizeof(ngx_table_elt_t *))
|
|
|
689 == NGX_ERROR)
|
|
0
|
690 {
|
|
|
691 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
692 return;
|
|
|
693 }
|
|
|
694
|
|
32
|
695 c->log->action = "reading client request headers";
|
|
0
|
696
|
|
58
|
697 rev->handler = ngx_http_process_request_headers;
|
|
0
|
698 ngx_http_process_request_headers(rev);
|
|
|
699
|
|
|
700 return;
|
|
54
|
701 }
|
|
|
702
|
|
|
703 if (rc != NGX_AGAIN) {
|
|
0
|
704
|
|
|
705 /* there was error while a request line parsing */
|
|
|
706
|
|
54
|
707 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
|
708 ngx_http_client_errors[rc - NGX_HTTP_CLIENT_ERROR]);
|
|
|
709 ngx_http_finalize_request(r, NGX_HTTP_BAD_REQUEST);
|
|
0
|
710 return;
|
|
|
711 }
|
|
|
712
|
|
|
713 /* NGX_AGAIN: a request line parsing is still incomplete */
|
|
|
714
|
|
|
715 if (r->header_in->pos == r->header_in->end) {
|
|
|
716
|
|
|
717 rv = ngx_http_alloc_large_header_buffer(r, 1);
|
|
|
718
|
|
|
719 if (rv == NGX_ERROR) {
|
|
|
720 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
721 return;
|
|
|
722 }
|
|
|
723
|
|
|
724 if (rv == NGX_DECLINED) {
|
|
54
|
725 ctx = c->log->data;
|
|
|
726 ctx->request = r;
|
|
|
727
|
|
|
728 r->request_line.len = r->header_in->end - r->request_start;
|
|
|
729 r->request_line.data = r->request_start;
|
|
|
730
|
|
|
731 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
|
732 "client sent too long URI");
|
|
|
733 ngx_http_finalize_request(r, NGX_HTTP_REQUEST_URI_TOO_LARGE);
|
|
0
|
734 return;
|
|
|
735 }
|
|
|
736 }
|
|
|
737 }
|
|
|
738 }
|
|
|
739
|
|
|
740
|
|
50
|
741 static void
|
|
|
742 ngx_http_process_request_headers(ngx_event_t *rev)
|
|
0
|
743 {
|
|
56
|
744 ssize_t n;
|
|
|
745 ngx_int_t rc, rv;
|
|
|
746 ngx_str_t header;
|
|
198
|
747 ngx_uint_t i;
|
|
58
|
748 ngx_table_elt_t *h;
|
|
56
|
749 ngx_connection_t *c;
|
|
|
750 ngx_http_header_t *hh;
|
|
|
751 ngx_http_request_t *r;
|
|
60
|
752 ngx_http_core_srv_conf_t *cscf;
|
|
56
|
753 ngx_http_core_main_conf_t *cmcf;
|
|
0
|
754
|
|
|
755 c = rev->data;
|
|
|
756 r = c->data;
|
|
|
757
|
|
|
758 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, rev->log, 0,
|
|
|
759 "http process request header line");
|
|
|
760
|
|
|
761 if (rev->timedout) {
|
|
54
|
762 ngx_log_error(NGX_LOG_INFO, c->log, NGX_ETIMEDOUT, "client timed out");
|
|
|
763 c->timedout = 1;
|
|
|
764 ngx_http_close_request(r, NGX_HTTP_REQUEST_TIME_OUT);
|
|
0
|
765 return;
|
|
|
766 }
|
|
|
767
|
|
56
|
768 cmcf = ngx_http_get_module_main_conf(r, ngx_http_core_module);
|
|
60
|
769 cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
|
|
56
|
770
|
|
0
|
771 rc = NGX_AGAIN;
|
|
|
772
|
|
|
773 for ( ;; ) {
|
|
|
774
|
|
|
775 if (rc == NGX_AGAIN) {
|
|
|
776
|
|
|
777 if (r->header_in->pos == r->header_in->end) {
|
|
|
778
|
|
|
779 rv = ngx_http_alloc_large_header_buffer(r, 0);
|
|
|
780
|
|
|
781 if (rv == NGX_ERROR) {
|
|
|
782 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
783 return;
|
|
|
784 }
|
|
|
785
|
|
|
786 if (rv == NGX_DECLINED) {
|
|
54
|
787 header.len = r->header_in->end - r->header_name_start;
|
|
|
788 header.data = r->header_name_start;
|
|
80
|
789
|
|
|
790 if (header.len > NGX_MAX_ERROR_STR - 300) {
|
|
|
791 header.len = NGX_MAX_ERROR_STR - 300;
|
|
|
792 header.data[header.len++] = '.';
|
|
|
793 header.data[header.len++] = '.';
|
|
|
794 header.data[header.len++] = '.';
|
|
|
795 }
|
|
|
796
|
|
54
|
797 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
|
798 "client sent too long header line: \"%V\"",
|
|
|
799 &header);
|
|
|
800 ngx_http_close_request(r, NGX_HTTP_BAD_REQUEST);
|
|
0
|
801 return;
|
|
|
802 }
|
|
|
803 }
|
|
|
804
|
|
|
805 n = ngx_http_read_request_header(r);
|
|
|
806
|
|
|
807 if (n == NGX_AGAIN || n == NGX_ERROR) {
|
|
|
808 return;
|
|
|
809 }
|
|
|
810 }
|
|
|
811
|
|
|
812 rc = ngx_http_parse_header_line(r, r->header_in);
|
|
|
813
|
|
|
814 if (rc == NGX_OK) {
|
|
|
815
|
|
60
|
816 if (r->invalid_header && cscf->ignore_invalid_headers) {
|
|
52
|
817
|
|
|
818 /* there was error while a header line parsing */
|
|
|
819
|
|
|
820 header.len = r->header_end - r->header_name_start;
|
|
|
821 header.data = r->header_name_start;
|
|
|
822
|
|
54
|
823 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
|
824 "client sent invalid header line: \"%V\"",
|
|
52
|
825 &header);
|
|
|
826 continue;
|
|
|
827 }
|
|
|
828
|
|
0
|
829 /* a header line has been parsed successfully */
|
|
|
830
|
|
50
|
831 h = ngx_list_push(&r->headers_in.headers);
|
|
|
832 if (h == NULL) {
|
|
0
|
833 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
834 return;
|
|
|
835 }
|
|
|
836
|
|
56
|
837 h->hash = r->header_hash;
|
|
|
838
|
|
0
|
839 h->key.len = r->header_name_end - r->header_name_start;
|
|
|
840 h->key.data = r->header_name_start;
|
|
|
841 h->key.data[h->key.len] = '\0';
|
|
|
842
|
|
|
843 h->value.len = r->header_end - r->header_start;
|
|
|
844 h->value.data = r->header_start;
|
|
|
845 h->value.data[h->value.len] = '\0';
|
|
|
846
|
|
198
|
847 h->lowcase_key = ngx_palloc(r->pool, h->key.len);
|
|
|
848 if (h->lowcase_key == NULL) {
|
|
|
849 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
850 return;
|
|
|
851 }
|
|
|
852
|
|
|
853 if (h->key.len == r->lowcase_index) {
|
|
|
854 ngx_memcpy(h->lowcase_key, r->lowcase_header, h->key.len);
|
|
|
855
|
|
|
856 } else {
|
|
|
857 for (i = 0; i < h->key.len; i++) {
|
|
|
858 h->lowcase_key[i] = ngx_tolower(h->lowcase_key[i]);
|
|
0
|
859 }
|
|
|
860 }
|
|
|
861
|
|
198
|
862 hh = ngx_hash_find(&cmcf->headers_in_hash, h->hash,
|
|
|
863 h->lowcase_key, h->key.len);
|
|
|
864
|
|
|
865 if (hh && hh->handler(r, h, hh->offset) != NGX_OK) {
|
|
|
866 return;
|
|
|
867 }
|
|
|
868
|
|
0
|
869 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
10
|
870 "http header: \"%V: %V\"",
|
|
|
871 &h->key, &h->value);
|
|
0
|
872
|
|
|
873 continue;
|
|
54
|
874 }
|
|
|
875
|
|
|
876 if (rc == NGX_HTTP_PARSE_HEADER_DONE) {
|
|
0
|
877
|
|
|
878 /* a whole header has been parsed successfully */
|
|
|
879
|
|
|
880 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
881 "http header done");
|
|
|
882
|
|
24
|
883 r->request_length += r->header_in->pos - r->header_in->start;
|
|
|
884
|
|
0
|
885 r->http_state = NGX_HTTP_PROCESS_REQUEST_STATE;
|
|
|
886
|
|
|
887 rc = ngx_http_process_request_header(r);
|
|
|
888
|
|
|
889 if (rc != NGX_OK) {
|
|
|
890 return;
|
|
|
891 }
|
|
|
892
|
|
|
893 if (rev->timer_set) {
|
|
|
894 ngx_del_timer(rev);
|
|
|
895 }
|
|
|
896
|
|
|
897 #if (NGX_STAT_STUB)
|
|
110
|
898 ngx_atomic_fetch_add(ngx_stat_reading, -1);
|
|
0
|
899 r->stat_reading = 0;
|
|
110
|
900 ngx_atomic_fetch_add(ngx_stat_writing, 1);
|
|
0
|
901 r->stat_writing = 1;
|
|
|
902 #endif
|
|
|
903
|
|
58
|
904 rev->handler = ngx_http_request_handler;
|
|
|
905 c->write->handler = ngx_http_request_handler;
|
|
|
906 r->read_event_handler = ngx_http_block_read;
|
|
|
907
|
|
0
|
908 ngx_http_handler(r);
|
|
86
|
909
|
|
0
|
910 return;
|
|
54
|
911 }
|
|
|
912
|
|
|
913 if (rc == NGX_AGAIN) {
|
|
|
914
|
|
|
915 /* a header line parsing is still not complete */
|
|
|
916
|
|
|
917 continue;
|
|
0
|
918 }
|
|
|
919
|
|
54
|
920 /* rc == NGX_HTTP_PARSE_INVALID_HEADER: "\r" is not followed by "\n" */
|
|
|
921
|
|
|
922 header.len = r->header_end - r->header_name_start;
|
|
|
923 header.data = r->header_name_start;
|
|
|
924 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
|
925 "client sent invalid header line: \"%V\\r...\"",
|
|
|
926 &header);
|
|
|
927 ngx_http_close_request(r, NGX_HTTP_BAD_REQUEST);
|
|
|
928 return;
|
|
0
|
929 }
|
|
|
930 }
|
|
|
931
|
|
|
932
|
|
50
|
933 static ssize_t
|
|
|
934 ngx_http_read_request_header(ngx_http_request_t *r)
|
|
0
|
935 {
|
|
|
936 ssize_t n;
|
|
|
937 ngx_event_t *rev;
|
|
|
938 ngx_http_core_srv_conf_t *cscf;
|
|
|
939
|
|
|
940 rev = r->connection->read;
|
|
|
941
|
|
|
942 n = r->header_in->last - r->header_in->pos;
|
|
|
943
|
|
|
944 if (n > 0) {
|
|
|
945 return n;
|
|
|
946 }
|
|
|
947
|
|
72
|
948 if (rev->ready) {
|
|
|
949 n = r->connection->recv(r->connection, r->header_in->last,
|
|
|
950 r->header_in->end - r->header_in->last);
|
|
|
951 } else {
|
|
|
952 n = NGX_AGAIN;
|
|
0
|
953 }
|
|
|
954
|
|
|
955 if (n == NGX_AGAIN) {
|
|
|
956 if (!r->header_timeout_set) {
|
|
|
957 cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
|
|
|
958 ngx_add_timer(rev, cscf->client_header_timeout);
|
|
|
959 r->header_timeout_set = 1;
|
|
|
960 }
|
|
|
961
|
|
|
962 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) {
|
|
|
963 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
964 return NGX_ERROR;
|
|
|
965 }
|
|
|
966
|
|
|
967 return NGX_AGAIN;
|
|
|
968 }
|
|
|
969
|
|
|
970 if (n == 0) {
|
|
|
971 ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
|
|
|
972 "client closed prematurely connection");
|
|
|
973 }
|
|
|
974
|
|
|
975 if (n == 0 || n == NGX_ERROR) {
|
|
194
|
976 ngx_http_finalize_request(r, NGX_HTTP_BAD_REQUEST);
|
|
0
|
977 return NGX_ERROR;
|
|
|
978 }
|
|
|
979
|
|
|
980 r->header_in->last += n;
|
|
|
981
|
|
|
982 return n;
|
|
|
983 }
|
|
|
984
|
|
|
985
|
|
50
|
986 static ngx_int_t
|
|
|
987 ngx_http_alloc_large_header_buffer(ngx_http_request_t *r,
|
|
|
988 ngx_uint_t request_line)
|
|
0
|
989 {
|
|
|
990 u_char *old, *new;
|
|
|
991 ngx_buf_t *b;
|
|
|
992 ngx_http_connection_t *hc;
|
|
|
993 ngx_http_core_srv_conf_t *cscf;
|
|
|
994
|
|
|
995 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
996 "http alloc large header buffer");
|
|
|
997
|
|
|
998 if (request_line && r->state == 0) {
|
|
|
999
|
|
|
1000 /* the client fills up the buffer with "\r\n" */
|
|
|
1001
|
|
24
|
1002 r->request_length += r->header_in->end - r->header_in->start;
|
|
|
1003
|
|
0
|
1004 r->header_in->pos = r->header_in->start;
|
|
|
1005 r->header_in->last = r->header_in->start;
|
|
|
1006
|
|
|
1007 return NGX_OK;
|
|
|
1008 }
|
|
|
1009
|
|
|
1010 old = request_line ? r->request_start : r->header_name_start;
|
|
|
1011
|
|
|
1012 cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
|
|
|
1013
|
|
|
1014 if (r->state != 0
|
|
|
1015 && (size_t) (r->header_in->pos - old)
|
|
|
1016 >= cscf->large_client_header_buffers.size)
|
|
|
1017 {
|
|
|
1018 return NGX_DECLINED;
|
|
|
1019 }
|
|
|
1020
|
|
|
1021 hc = r->http_connection;
|
|
|
1022
|
|
|
1023 if (hc->nfree) {
|
|
|
1024 b = hc->free[--hc->nfree];
|
|
|
1025
|
|
|
1026 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
10
|
1027 "http large header free: %p %uz",
|
|
0
|
1028 b->pos, b->end - b->last);
|
|
|
1029
|
|
|
1030 } else if (hc->nbusy < cscf->large_client_header_buffers.num) {
|
|
|
1031
|
|
|
1032 if (hc->busy == NULL) {
|
|
|
1033 hc->busy = ngx_palloc(r->connection->pool,
|
|
|
1034 cscf->large_client_header_buffers.num * sizeof(ngx_buf_t *));
|
|
|
1035 if (hc->busy == NULL) {
|
|
|
1036 return NGX_ERROR;
|
|
|
1037 }
|
|
|
1038 }
|
|
|
1039
|
|
|
1040 b = ngx_create_temp_buf(r->connection->pool,
|
|
|
1041 cscf->large_client_header_buffers.size);
|
|
|
1042 if (b == NULL) {
|
|
|
1043 return NGX_ERROR;
|
|
|
1044 }
|
|
|
1045
|
|
|
1046 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
10
|
1047 "http large header alloc: %p %uz",
|
|
0
|
1048 b->pos, b->end - b->last);
|
|
|
1049
|
|
|
1050 } else {
|
|
|
1051 return NGX_DECLINED;
|
|
|
1052 }
|
|
|
1053
|
|
|
1054 hc->busy[hc->nbusy++] = b;
|
|
|
1055
|
|
|
1056 if (r->state == 0) {
|
|
|
1057 /*
|
|
|
1058 * r->state == 0 means that a header line was parsed successfully
|
|
|
1059 * and we do not need to copy incomplete header line and
|
|
|
1060 * to relocate the parser header pointers
|
|
|
1061 */
|
|
|
1062
|
|
24
|
1063 r->request_length += r->header_in->end - r->header_in->start;
|
|
|
1064
|
|
0
|
1065 r->header_in = b;
|
|
|
1066
|
|
|
1067 return NGX_OK;
|
|
|
1068 }
|
|
|
1069
|
|
|
1070 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1071 "http large header copy: %d", r->header_in->pos - old);
|
|
|
1072
|
|
24
|
1073 r->request_length += old - r->header_in->start;
|
|
|
1074
|
|
0
|
1075 new = b->start;
|
|
|
1076
|
|
|
1077 ngx_memcpy(new, old, r->header_in->pos - old);
|
|
|
1078
|
|
|
1079 b->pos = new + (r->header_in->pos - old);
|
|
|
1080 b->last = new + (r->header_in->pos - old);
|
|
|
1081
|
|
|
1082 if (request_line) {
|
|
|
1083 r->request_start = new;
|
|
|
1084
|
|
|
1085 if (r->request_end) {
|
|
|
1086 r->request_end = new + (r->request_end - old);
|
|
|
1087 }
|
|
|
1088
|
|
|
1089 r->method_end = new + (r->method_end - old);
|
|
|
1090
|
|
|
1091 r->uri_start = new + (r->uri_start - old);
|
|
|
1092 r->uri_end = new + (r->uri_end - old);
|
|
|
1093
|
|
|
1094 if (r->schema_start) {
|
|
|
1095 r->schema_start = new + (r->schema_start - old);
|
|
|
1096 r->schema_end = new + (r->schema_end - old);
|
|
|
1097 }
|
|
|
1098
|
|
|
1099 if (r->host_start) {
|
|
|
1100 r->host_start = new + (r->host_start - old);
|
|
|
1101 r->host_end = new + (r->host_end - old);
|
|
|
1102 }
|
|
|
1103
|
|
|
1104 if (r->port_start) {
|
|
|
1105 r->port_start = new + (r->port_start - old);
|
|
|
1106 r->port_end = new + (r->port_end - old);
|
|
|
1107 }
|
|
|
1108
|
|
|
1109 if (r->uri_ext) {
|
|
|
1110 r->uri_ext = new + (r->uri_ext - old);
|
|
|
1111 }
|
|
|
1112
|
|
|
1113 if (r->args_start) {
|
|
|
1114 r->args_start = new + (r->args_start - old);
|
|
|
1115 }
|
|
|
1116
|
|
|
1117 } else {
|
|
|
1118 r->header_name_start = new;
|
|
|
1119 r->header_name_end = new + (r->header_name_end - old);
|
|
|
1120 r->header_start = new + (r->header_start - old);
|
|
|
1121 r->header_end = new + (r->header_end - old);
|
|
|
1122 }
|
|
|
1123
|
|
|
1124 r->header_in = b;
|
|
|
1125
|
|
|
1126 return NGX_OK;
|
|
|
1127 }
|
|
|
1128
|
|
|
1129
|
|
50
|
1130 static ngx_int_t
|
|
58
|
1131 ngx_http_process_header_line(ngx_http_request_t *r, ngx_table_elt_t *h,
|
|
|
1132 ngx_uint_t offset)
|
|
|
1133 {
|
|
|
1134 ngx_table_elt_t **ph;
|
|
|
1135
|
|
|
1136 ph = (ngx_table_elt_t **) ((char *) &r->headers_in + offset);
|
|
|
1137
|
|
|
1138 if (*ph == NULL) {
|
|
|
1139 *ph = h;
|
|
|
1140 }
|
|
|
1141
|
|
|
1142 return NGX_OK;
|
|
|
1143 }
|
|
|
1144
|
|
|
1145
|
|
|
1146 static ngx_int_t
|
|
72
|
1147 ngx_http_process_unique_header_line(ngx_http_request_t *r, ngx_table_elt_t *h,
|
|
|
1148 ngx_uint_t offset)
|
|
|
1149 {
|
|
|
1150 ngx_table_elt_t **ph;
|
|
|
1151
|
|
|
1152 ph = (ngx_table_elt_t **) ((char *) &r->headers_in + offset);
|
|
|
1153
|
|
|
1154 if (*ph == NULL) {
|
|
|
1155 *ph = h;
|
|
|
1156 return NGX_OK;
|
|
|
1157 }
|
|
|
1158
|
|
|
1159 ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
|
|
|
1160 "client sent duplicate header line: \"%V: %V\"",
|
|
|
1161 &h->key, &h->value);
|
|
|
1162
|
|
|
1163 ngx_http_finalize_request(r, NGX_HTTP_BAD_REQUEST);
|
|
|
1164
|
|
|
1165 return NGX_ERROR;
|
|
|
1166 }
|
|
|
1167
|
|
|
1168
|
|
|
1169 static ngx_int_t
|
|
58
|
1170 ngx_http_process_cookie(ngx_http_request_t *r, ngx_table_elt_t *h,
|
|
|
1171 ngx_uint_t offset)
|
|
|
1172 {
|
|
|
1173 ngx_table_elt_t **cookie;
|
|
|
1174
|
|
|
1175 cookie = ngx_array_push(&r->headers_in.cookies);
|
|
72
|
1176 if (cookie) {
|
|
|
1177 *cookie = h;
|
|
|
1178 return NGX_OK;
|
|
58
|
1179 }
|
|
|
1180
|
|
72
|
1181 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
1182
|
|
|
1183 return NGX_ERROR;
|
|
58
|
1184 }
|
|
|
1185
|
|
|
1186
|
|
|
1187 static ngx_int_t
|
|
50
|
1188 ngx_http_process_request_header(ngx_http_request_t *r)
|
|
0
|
1189 {
|
|
196
|
1190 size_t len;
|
|
|
1191 u_char *ua, *user_agent, ch;
|
|
198
|
1192 ngx_uint_t hash;
|
|
196
|
1193 #if (NGX_HTTP_SSL)
|
|
|
1194 long rc;
|
|
|
1195 ngx_http_ssl_srv_conf_t *sscf;
|
|
|
1196 #endif
|
|
0
|
1197
|
|
|
1198 if (r->headers_in.host) {
|
|
198
|
1199
|
|
|
1200 hash = 0;
|
|
|
1201
|
|
0
|
1202 for (len = 0; len < r->headers_in.host->value.len; len++) {
|
|
26
|
1203 ch = r->headers_in.host->value.data[len];
|
|
|
1204
|
|
|
1205 if (ch == ':') {
|
|
0
|
1206 break;
|
|
|
1207 }
|
|
26
|
1208
|
|
198
|
1209 ch = ngx_tolower(ch);
|
|
|
1210 r->headers_in.host->value.data[len] = ch;
|
|
|
1211 hash = ngx_hash(hash, ch);
|
|
0
|
1212 }
|
|
54
|
1213
|
|
198
|
1214 if (len && r->headers_in.host->value.data[len - 1] == '.') {
|
|
58
|
1215 len--;
|
|
198
|
1216 hash = ngx_hash_key(r->headers_in.host->value.data, len);
|
|
58
|
1217 }
|
|
|
1218
|
|
0
|
1219 r->headers_in.host_name_len = len;
|
|
|
1220
|
|
198
|
1221 if (r->virtual_names) {
|
|
|
1222 ngx_http_find_virtual_server(r, r->virtual_names, hash);
|
|
|
1223 }
|
|
0
|
1224
|
|
|
1225 } else {
|
|
|
1226 if (r->http_version > NGX_HTTP_VERSION_10) {
|
|
54
|
1227 ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
|
|
|
1228 "client sent HTTP/1.1 request without \"Host\" header");
|
|
|
1229 ngx_http_finalize_request(r, NGX_HTTP_BAD_REQUEST);
|
|
|
1230 return NGX_ERROR;
|
|
0
|
1231 }
|
|
54
|
1232
|
|
0
|
1233 r->headers_in.host_name_len = 0;
|
|
|
1234 }
|
|
|
1235
|
|
|
1236 if (r->headers_in.content_length) {
|
|
|
1237 r->headers_in.content_length_n =
|
|
212
|
1238 ngx_atoof(r->headers_in.content_length->value.data,
|
|
0
|
1239 r->headers_in.content_length->value.len);
|
|
|
1240
|
|
|
1241 if (r->headers_in.content_length_n == NGX_ERROR) {
|
|
54
|
1242 ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
|
|
|
1243 "client sent invalid \"Content-Length\" header");
|
|
130
|
1244 ngx_http_finalize_request(r, NGX_HTTP_LENGTH_REQUIRED);
|
|
54
|
1245 return NGX_ERROR;
|
|
0
|
1246 }
|
|
|
1247 }
|
|
|
1248
|
|
188
|
1249 if (r->method & (NGX_HTTP_POST|NGX_HTTP_PUT)
|
|
|
1250 && r->headers_in.content_length_n == -1)
|
|
|
1251 {
|
|
54
|
1252 ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
|
|
|
1253 "client sent POST method without \"Content-Length\" header");
|
|
130
|
1254 ngx_http_finalize_request(r, NGX_HTTP_LENGTH_REQUIRED);
|
|
|
1255 return NGX_ERROR;
|
|
|
1256 }
|
|
|
1257
|
|
|
1258 if (r->headers_in.transfer_encoding
|
|
|
1259 && ngx_strstr(r->headers_in.transfer_encoding->value.data, "chunked"))
|
|
|
1260 {
|
|
|
1261 ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
|
|
|
1262 "client sent \"Transfer-Encoding: chunked\" header");
|
|
|
1263 ngx_http_finalize_request(r, NGX_HTTP_LENGTH_REQUIRED);
|
|
54
|
1264 return NGX_ERROR;
|
|
0
|
1265 }
|
|
|
1266
|
|
|
1267 if (r->plain_http) {
|
|
54
|
1268 ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
|
|
|
1269 "client sent plain HTTP request to HTTPS port");
|
|
|
1270 ngx_http_finalize_request(r, NGX_HTTP_TO_HTTPS);
|
|
|
1271 return NGX_ERROR;
|
|
0
|
1272 }
|
|
|
1273
|
|
196
|
1274 #if (NGX_HTTP_SSL)
|
|
|
1275
|
|
|
1276 if (r->connection->ssl) {
|
|
|
1277 sscf = ngx_http_get_module_srv_conf(r, ngx_http_ssl_module);
|
|
|
1278
|
|
|
1279 if (sscf->verify) {
|
|
|
1280 rc = SSL_get_verify_result(r->connection->ssl->connection);
|
|
|
1281
|
|
|
1282 if (rc != X509_V_OK) {
|
|
|
1283 ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
|
|
|
1284 "client SSL certificate verify error: %l ", rc);
|
|
|
1285 ngx_http_finalize_request(r, NGX_HTTPS_CERT_ERROR);
|
|
|
1286 return NGX_ERROR;
|
|
|
1287 }
|
|
|
1288
|
|
|
1289 if (SSL_get_peer_certificate(r->connection->ssl->connection)
|
|
|
1290 == NULL)
|
|
|
1291 {
|
|
|
1292 ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
|
|
|
1293 "client sent no required SSL certificate");
|
|
|
1294 ngx_http_finalize_request(r, NGX_HTTPS_NO_CERT);
|
|
|
1295 return NGX_ERROR;
|
|
|
1296 }
|
|
|
1297 }
|
|
|
1298 }
|
|
|
1299
|
|
|
1300 #endif
|
|
|
1301
|
|
0
|
1302 if (r->headers_in.connection) {
|
|
|
1303 if (r->headers_in.connection->value.len == 5
|
|
|
1304 && ngx_strcasecmp(r->headers_in.connection->value.data, "close")
|
|
58
|
1305 == 0)
|
|
0
|
1306 {
|
|
|
1307 r->headers_in.connection_type = NGX_HTTP_CONNECTION_CLOSE;
|
|
|
1308
|
|
|
1309 } else if (r->headers_in.connection->value.len == 10
|
|
|
1310 && ngx_strcasecmp(r->headers_in.connection->value.data,
|
|
58
|
1311 "keep-alive") == 0)
|
|
0
|
1312 {
|
|
|
1313 r->headers_in.connection_type = NGX_HTTP_CONNECTION_KEEP_ALIVE;
|
|
|
1314
|
|
|
1315 if (r->headers_in.keep_alive) {
|
|
|
1316 r->headers_in.keep_alive_n =
|
|
50
|
1317 ngx_atotm(r->headers_in.keep_alive->value.data,
|
|
0
|
1318 r->headers_in.keep_alive->value.len);
|
|
|
1319 }
|
|
|
1320 }
|
|
|
1321 }
|
|
|
1322
|
|
|
1323 if (r->headers_in.user_agent) {
|
|
|
1324
|
|
|
1325 /*
|
|
|
1326 * check some widespread browsers while the headers are still
|
|
|
1327 * in CPU cache
|
|
|
1328 */
|
|
|
1329
|
|
|
1330 user_agent = r->headers_in.user_agent->value.data;
|
|
|
1331
|
|
|
1332 ua = (u_char *) ngx_strstr(user_agent, "MSIE");
|
|
|
1333
|
|
|
1334 if (ua && ua + 8 < user_agent + r->headers_in.user_agent->value.len) {
|
|
|
1335
|
|
|
1336 r->headers_in.msie = 1;
|
|
|
1337
|
|
|
1338 if (ua[4] == ' ' && ua[5] == '4' && ua[6] == '.') {
|
|
|
1339 r->headers_in.msie4 = 1;
|
|
|
1340 }
|
|
|
1341
|
|
|
1342 #if 0
|
|
|
1343 /* MSIE ignores the SSL "close notify" alert */
|
|
22
|
1344 if (c->ssl) {
|
|
96
|
1345 c->ssl->no_send_shutdown = 1;
|
|
22
|
1346 }
|
|
0
|
1347 #endif
|
|
|
1348 }
|
|
|
1349
|
|
|
1350 if (ngx_strstr(user_agent, "Opera")) {
|
|
|
1351 r->headers_in.opera = 1;
|
|
|
1352 r->headers_in.msie = 0;
|
|
|
1353 r->headers_in.msie4 = 0;
|
|
|
1354 }
|
|
|
1355
|
|
|
1356 if (!r->headers_in.msie && !r->headers_in.opera) {
|
|
|
1357
|
|
|
1358 if (ngx_strstr(user_agent, "Gecko/")) {
|
|
|
1359 r->headers_in.gecko = 1;
|
|
|
1360
|
|
|
1361 } else if (ngx_strstr(user_agent, "Konqueror")) {
|
|
|
1362 r->headers_in.konqueror = 1;
|
|
|
1363 }
|
|
|
1364 }
|
|
|
1365 }
|
|
|
1366
|
|
|
1367 return NGX_OK;
|
|
|
1368 }
|
|
|
1369
|
|
|
1370
|
|
162
|
1371 static void
|
|
198
|
1372 ngx_http_find_virtual_server(ngx_http_request_t *r,
|
|
|
1373 ngx_http_virtual_names_t *vn, ngx_uint_t hash)
|
|
26
|
1374 {
|
|
142
|
1375 size_t len;
|
|
|
1376 u_char *host;
|
|
|
1377 ngx_http_core_loc_conf_t *clcf;
|
|
|
1378 ngx_http_core_srv_conf_t *cscf;
|
|
|
1379
|
|
|
1380 host = r->headers_in.host->value.data;
|
|
|
1381 len = r->headers_in.host_name_len;
|
|
|
1382
|
|
|
1383 if (vn->hash.buckets) {
|
|
198
|
1384 cscf = ngx_hash_find(&vn->hash, hash, host, len);
|
|
142
|
1385 if (cscf) {
|
|
58
|
1386 goto found;
|
|
26
|
1387 }
|
|
|
1388 }
|
|
|
1389
|
|
142
|
1390 if (vn->dns_wildcards && vn->dns_wildcards->hash.buckets) {
|
|
|
1391 cscf = ngx_hash_find_wildcard(vn->dns_wildcards, host, len);
|
|
|
1392
|
|
|
1393 if (cscf) {
|
|
|
1394 goto found;
|
|
26
|
1395 }
|
|
|
1396 }
|
|
|
1397
|
|
212
|
1398 cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
|
|
|
1399
|
|
|
1400 if (cscf->wildcard) {
|
|
|
1401 r->server_name.len = len;
|
|
|
1402 r->server_name.data = host;
|
|
|
1403 }
|
|
|
1404
|
|
162
|
1405 return;
|
|
58
|
1406
|
|
|
1407 found:
|
|
|
1408
|
|
142
|
1409 r->server_name.len = len;
|
|
|
1410 r->server_name.data = host;
|
|
|
1411
|
|
|
1412 r->srv_conf = cscf->ctx->srv_conf;
|
|
|
1413 r->loc_conf = cscf->ctx->loc_conf;
|
|
58
|
1414
|
|
|
1415 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
1416 r->connection->log->file = clcf->err_log->file;
|
|
|
1417
|
|
|
1418 if (!(r->connection->log->log_level & NGX_LOG_DEBUG_CONNECTION)) {
|
|
|
1419 r->connection->log->log_level = clcf->err_log->log_level;
|
|
26
|
1420 }
|
|
|
1421
|
|
162
|
1422 return;
|
|
26
|
1423 }
|
|
|
1424
|
|
|
1425
|
|
58
|
1426 static void
|
|
|
1427 ngx_http_request_handler(ngx_event_t *ev)
|
|
|
1428 {
|
|
|
1429 ngx_connection_t *c;
|
|
|
1430 ngx_http_request_t *r;
|
|
|
1431
|
|
|
1432 c = ev->data;
|
|
|
1433 r = c->data;
|
|
|
1434
|
|
|
1435 if (ev->write) {
|
|
|
1436 r->write_event_handler(r);
|
|
|
1437
|
|
|
1438 } else {
|
|
|
1439 r->read_event_handler(r);
|
|
|
1440 }
|
|
|
1441 }
|
|
|
1442
|
|
|
1443
|
|
50
|
1444 void
|
|
58
|
1445 ngx_http_finalize_request(ngx_http_request_t *r, ngx_int_t rc)
|
|
0
|
1446 {
|
|
58
|
1447 ngx_http_request_t *pr;
|
|
0
|
1448 ngx_http_core_loc_conf_t *clcf;
|
|
|
1449
|
|
58
|
1450 if (rc == NGX_DONE) {
|
|
118
|
1451 /* the request pool may be already destroyed */
|
|
58
|
1452 return;
|
|
|
1453 }
|
|
|
1454
|
|
132
|
1455 ngx_log_debug3(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1456 "http finalize request: %d, \"%V?%V\"",
|
|
|
1457 rc, &r->uri, &r->args);
|
|
|
1458
|
|
162
|
1459 if (rc == NGX_ERROR
|
|
|
1460 || rc == NGX_HTTP_REQUEST_TIME_OUT
|
|
|
1461 || r->connection->error)
|
|
|
1462 {
|
|
190
|
1463 if (rc == NGX_HTTP_CLIENT_CLOSED_REQUEST
|
|
|
1464 && r->headers_out.status == 0)
|
|
|
1465 {
|
|
|
1466 r->headers_out.status = NGX_HTTP_CLIENT_CLOSED_REQUEST;
|
|
|
1467 }
|
|
|
1468
|
|
162
|
1469 if (ngx_http_post_action(r) == NGX_OK) {
|
|
|
1470 return;
|
|
|
1471 }
|
|
|
1472
|
|
118
|
1473 ngx_http_close_request(r, 0);
|
|
0
|
1474 return;
|
|
|
1475 }
|
|
|
1476
|
|
186
|
1477 if (rc >= NGX_HTTP_SPECIAL_RESPONSE
|
|
|
1478 || rc == NGX_HTTP_CREATED
|
|
|
1479 || rc == NGX_HTTP_NO_CONTENT)
|
|
|
1480 {
|
|
136
|
1481 if (rc == NGX_HTTP_CLOSE) {
|
|
|
1482 ngx_http_close_request(r, rc);
|
|
|
1483 return;
|
|
|
1484 }
|
|
|
1485
|
|
146
|
1486 if (r == r->main) {
|
|
118
|
1487 if (r->connection->read->timer_set) {
|
|
|
1488 ngx_del_timer(r->connection->read);
|
|
|
1489 }
|
|
|
1490
|
|
|
1491 if (r->connection->write->timer_set) {
|
|
|
1492 ngx_del_timer(r->connection->write);
|
|
|
1493 }
|
|
|
1494 }
|
|
|
1495
|
|
|
1496 ngx_http_finalize_request(r, ngx_http_special_response_handler(r, rc));
|
|
|
1497 return;
|
|
|
1498 }
|
|
|
1499
|
|
146
|
1500 if (r != r->main || rc == NGX_AGAIN) {
|
|
74
|
1501 if (ngx_http_set_write_handler(r) != NGX_OK) {
|
|
|
1502 return;
|
|
|
1503 }
|
|
58
|
1504 }
|
|
|
1505
|
|
|
1506 r->done = 1;
|
|
|
1507
|
|
|
1508 if (r != r->connection->data) {
|
|
132
|
1509 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1510 "http finalize non-active request: \"%V?%V\"",
|
|
|
1511 &r->uri, &r->args);
|
|
58
|
1512 return;
|
|
|
1513 }
|
|
|
1514
|
|
146
|
1515 if (r != r->main) {
|
|
58
|
1516
|
|
|
1517 pr = r->parent;
|
|
|
1518
|
|
132
|
1519 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1520 "http parent request: \"%V?%V\"", &pr->uri, &pr->args);
|
|
76
|
1521
|
|
58
|
1522 if (rc != NGX_AGAIN) {
|
|
146
|
1523 r->connection->data = pr;
|
|
58
|
1524 }
|
|
|
1525
|
|
|
1526 if (pr->postponed) {
|
|
|
1527
|
|
132
|
1528 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1529 "http request: \"%V?%V\" has postponed",
|
|
|
1530 &pr->uri, &pr->args);
|
|
76
|
1531
|
|
58
|
1532 if (rc != NGX_AGAIN && pr->postponed->request == r) {
|
|
|
1533 pr->postponed = pr->postponed->next;
|
|
146
|
1534 }
|
|
|
1535
|
|
|
1536 if (r->fast_subrequest) {
|
|
194
|
1537
|
|
|
1538 if (rc == NGX_AGAIN) {
|
|
|
1539 r->fast_subrequest = 0;
|
|
|
1540 }
|
|
|
1541
|
|
146
|
1542 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1543 "http fast subrequest: \"%V?%V\" done",
|
|
|
1544 &r->uri, &r->args);
|
|
|
1545 return;
|
|
58
|
1546 }
|
|
|
1547
|
|
194
|
1548 if (rc != NGX_AGAIN) {
|
|
|
1549 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1550 "http wake parent request: \"%V?%V\"",
|
|
|
1551 &pr->uri, &pr->args);
|
|
|
1552
|
|
|
1553 pr->write_event_handler(pr);
|
|
|
1554 }
|
|
58
|
1555 }
|
|
|
1556
|
|
|
1557 return;
|
|
|
1558 }
|
|
0
|
1559
|
|
118
|
1560 if (rc == NGX_AGAIN) {
|
|
0
|
1561 return;
|
|
76
|
1562 }
|
|
|
1563
|
|
146
|
1564 if (r->connection->buffered) {
|
|
74
|
1565 (void) ngx_http_set_write_handler(r);
|
|
0
|
1566 return;
|
|
|
1567 }
|
|
|
1568
|
|
178
|
1569 if (!r->post_action) {
|
|
|
1570 r->request_complete = 1;
|
|
|
1571 }
|
|
|
1572
|
|
162
|
1573 if (ngx_http_post_action(r) == NGX_OK) {
|
|
126
|
1574 return;
|
|
|
1575 }
|
|
|
1576
|
|
0
|
1577 if (r->connection->read->timer_set) {
|
|
|
1578 ngx_del_timer(r->connection->read);
|
|
|
1579 }
|
|
|
1580
|
|
|
1581 if (r->connection->write->timer_set) {
|
|
|
1582 r->connection->write->delayed = 0;
|
|
|
1583 ngx_del_timer(r->connection->write);
|
|
|
1584 }
|
|
|
1585
|
|
138
|
1586 if (r->connection->destroyed) {
|
|
|
1587 return;
|
|
|
1588 }
|
|
|
1589
|
|
162
|
1590 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
0
|
1591
|
|
|
1592 if (!ngx_terminate
|
|
|
1593 && !ngx_exiting
|
|
|
1594 && r->keepalive != 0
|
|
|
1595 && clcf->keepalive_timeout > 0)
|
|
|
1596 {
|
|
|
1597 ngx_http_set_keepalive(r);
|
|
|
1598 return;
|
|
|
1599
|
|
|
1600 } else if (r->lingering_close && clcf->lingering_timeout > 0) {
|
|
|
1601 ngx_http_set_lingering_close(r);
|
|
|
1602 return;
|
|
|
1603 }
|
|
|
1604
|
|
|
1605 ngx_http_close_request(r, 0);
|
|
|
1606 }
|
|
|
1607
|
|
|
1608
|
|
74
|
1609 static ngx_int_t
|
|
50
|
1610 ngx_http_set_write_handler(ngx_http_request_t *r)
|
|
0
|
1611 {
|
|
|
1612 ngx_event_t *wev;
|
|
|
1613 ngx_http_core_loc_conf_t *clcf;
|
|
|
1614
|
|
58
|
1615 r->http_state = NGX_HTTP_WRITING_REQUEST_STATE;
|
|
|
1616
|
|
74
|
1617 r->write_event_handler = ngx_http_writer;
|
|
|
1618
|
|
0
|
1619 wev = r->connection->write;
|
|
|
1620
|
|
|
1621 if (wev->ready && wev->delayed) {
|
|
74
|
1622 return NGX_OK;
|
|
0
|
1623 }
|
|
|
1624
|
|
58
|
1625 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
0
|
1626 if (!wev->delayed) {
|
|
|
1627 ngx_add_timer(wev, clcf->send_timeout);
|
|
|
1628 }
|
|
|
1629
|
|
2
|
1630 if (ngx_handle_write_event(wev, clcf->send_lowat) == NGX_ERROR) {
|
|
0
|
1631 ngx_http_close_request(r, 0);
|
|
74
|
1632 return NGX_ERROR;
|
|
0
|
1633 }
|
|
74
|
1634
|
|
|
1635 return NGX_OK;
|
|
0
|
1636 }
|
|
|
1637
|
|
|
1638
|
|
58
|
1639 static void
|
|
|
1640 ngx_http_writer(ngx_http_request_t *r)
|
|
0
|
1641 {
|
|
|
1642 int rc;
|
|
58
|
1643 ngx_event_t *wev;
|
|
0
|
1644 ngx_connection_t *c;
|
|
|
1645 ngx_http_core_loc_conf_t *clcf;
|
|
|
1646
|
|
58
|
1647 c = r->connection;
|
|
|
1648 wev = c->write;
|
|
|
1649
|
|
132
|
1650 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, wev->log, 0,
|
|
|
1651 "http writer handler: \"%V?%V\"", &r->uri, &r->args);
|
|
0
|
1652
|
|
|
1653 if (wev->timedout) {
|
|
|
1654 if (!wev->delayed) {
|
|
54
|
1655 ngx_log_error(NGX_LOG_INFO, c->log, NGX_ETIMEDOUT,
|
|
|
1656 "client timed out");
|
|
|
1657 c->timedout = 1;
|
|
116
|
1658
|
|
162
|
1659 ngx_http_finalize_request(r, NGX_HTTP_REQUEST_TIME_OUT);
|
|
0
|
1660 return;
|
|
|
1661 }
|
|
|
1662
|
|
|
1663 wev->timedout = 0;
|
|
|
1664 wev->delayed = 0;
|
|
|
1665
|
|
|
1666 if (!wev->ready) {
|
|
102
|
1667 clcf = ngx_http_get_module_loc_conf(r->main, ngx_http_core_module);
|
|
0
|
1668 ngx_add_timer(wev, clcf->send_timeout);
|
|
|
1669
|
|
2
|
1670 if (ngx_handle_write_event(wev, clcf->send_lowat) == NGX_ERROR) {
|
|
118
|
1671 ngx_http_close_request(r, 0);
|
|
0
|
1672 }
|
|
|
1673
|
|
|
1674 return;
|
|
|
1675 }
|
|
|
1676
|
|
|
1677 } else {
|
|
|
1678 if (wev->delayed) {
|
|
|
1679 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, wev->log, 0,
|
|
|
1680 "http writer delayed");
|
|
|
1681
|
|
102
|
1682 clcf = ngx_http_get_module_loc_conf(r->main, ngx_http_core_module);
|
|
2
|
1683
|
|
|
1684 if (ngx_handle_write_event(wev, clcf->send_lowat) == NGX_ERROR) {
|
|
118
|
1685 ngx_http_close_request(r, 0);
|
|
0
|
1686 }
|
|
|
1687
|
|
|
1688 return;
|
|
|
1689 }
|
|
|
1690 }
|
|
|
1691
|
|
132
|
1692 rc = ngx_http_output_filter(r, NULL);
|
|
|
1693
|
|
|
1694 if (c->destroyed) {
|
|
|
1695 return;
|
|
58
|
1696 }
|
|
|
1697
|
|
132
|
1698 ngx_log_debug3(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
|
1699 "http writer output filter: %d, \"%V?%V\"",
|
|
|
1700 rc, &r->uri, &r->args);
|
|
0
|
1701
|
|
|
1702 if (rc == NGX_AGAIN) {
|
|
102
|
1703 clcf = ngx_http_get_module_loc_conf(r->main, ngx_http_core_module);
|
|
0
|
1704 if (!wev->ready && !wev->delayed) {
|
|
|
1705 ngx_add_timer(wev, clcf->send_timeout);
|
|
|
1706 }
|
|
|
1707
|
|
2
|
1708 if (ngx_handle_write_event(wev, clcf->send_lowat) == NGX_ERROR) {
|
|
118
|
1709 ngx_http_close_request(r, 0);
|
|
0
|
1710 }
|
|
|
1711
|
|
146
|
1712 if (r == r->main) {
|
|
|
1713 return;
|
|
|
1714 }
|
|
|
1715
|
|
|
1716 rc = NGX_OK;
|
|
0
|
1717 }
|
|
|
1718
|
|
132
|
1719 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, wev->log, 0,
|
|
|
1720 "http writer done: \"%V?%V\"", &r->uri, &r->args);
|
|
0
|
1721
|
|
|
1722 ngx_http_finalize_request(r, rc);
|
|
|
1723 }
|
|
|
1724
|
|
|
1725
|
|
50
|
1726 static void
|
|
58
|
1727 ngx_http_block_read(ngx_http_request_t *r)
|
|
0
|
1728 {
|
|
58
|
1729 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1730 "http read blocked");
|
|
0
|
1731
|
|
|
1732 /* aio does not call this handler */
|
|
|
1733
|
|
58
|
1734 if ((ngx_event_flags & NGX_USE_LEVEL_EVENT)
|
|
|
1735 && r->connection->read->active)
|
|
|
1736 {
|
|
|
1737 if (ngx_del_event(r->connection->read, NGX_READ_EVENT, 0)
|
|
|
1738 == NGX_ERROR)
|
|
|
1739 {
|
|
0
|
1740 ngx_http_close_request(r, 0);
|
|
|
1741 }
|
|
|
1742 }
|
|
|
1743 }
|
|
|
1744
|
|
|
1745
|
|
50
|
1746 static void
|
|
|
1747 ngx_http_set_keepalive(ngx_http_request_t *r)
|
|
0
|
1748 {
|
|
2
|
1749 int tcp_nodelay;
|
|
0
|
1750 ngx_int_t i;
|
|
|
1751 ngx_buf_t *b, *f;
|
|
|
1752 ngx_event_t *rev, *wev;
|
|
|
1753 ngx_connection_t *c;
|
|
|
1754 ngx_http_connection_t *hc;
|
|
|
1755 ngx_http_core_srv_conf_t *cscf;
|
|
|
1756 ngx_http_core_loc_conf_t *clcf;
|
|
|
1757
|
|
|
1758 c = r->connection;
|
|
|
1759 rev = c->read;
|
|
|
1760
|
|
|
1761 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "set http keepalive handler");
|
|
|
1762
|
|
32
|
1763 c->log->action = "closing request";
|
|
0
|
1764
|
|
|
1765 hc = r->http_connection;
|
|
|
1766 b = r->header_in;
|
|
|
1767
|
|
|
1768 if (b->pos < b->last) {
|
|
|
1769
|
|
|
1770 /* the pipelined request */
|
|
|
1771
|
|
|
1772 if (b != c->buffer) {
|
|
|
1773
|
|
4
|
1774 /*
|
|
|
1775 * If the large header buffers were allocated while the previous
|
|
|
1776 * request processing then we do not use c->buffer for
|
|
|
1777 * the pipelined request (see ngx_http_init_request()).
|
|
126
|
1778 *
|
|
4
|
1779 * Now we would move the large header buffers to the free list.
|
|
|
1780 */
|
|
0
|
1781
|
|
|
1782 cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
|
|
|
1783
|
|
|
1784 if (hc->free == NULL) {
|
|
|
1785 hc->free = ngx_palloc(c->pool,
|
|
|
1786 cscf->large_client_header_buffers.num * sizeof(ngx_buf_t *));
|
|
|
1787
|
|
|
1788 if (hc->free == NULL) {
|
|
26
|
1789 ngx_http_close_request(r, 0);
|
|
0
|
1790 return;
|
|
|
1791 }
|
|
|
1792 }
|
|
|
1793
|
|
|
1794 for (i = 0; i < hc->nbusy - 1; i++) {
|
|
|
1795 f = hc->busy[i];
|
|
|
1796 hc->free[hc->nfree++] = f;
|
|
|
1797 f->pos = f->start;
|
|
|
1798 f->last = f->start;
|
|
|
1799 }
|
|
|
1800
|
|
|
1801 hc->busy[0] = b;
|
|
|
1802 hc->nbusy = 1;
|
|
|
1803 }
|
|
|
1804 }
|
|
|
1805
|
|
26
|
1806 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
1807
|
|
118
|
1808 ngx_http_request_done(r, 0);
|
|
|
1809
|
|
0
|
1810 c->data = hc;
|
|
|
1811
|
|
|
1812 ngx_add_timer(rev, clcf->keepalive_timeout);
|
|
|
1813
|
|
58
|
1814 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) {
|
|
0
|
1815 ngx_http_close_connection(c);
|
|
|
1816 return;
|
|
|
1817 }
|
|
|
1818
|
|
|
1819 wev = c->write;
|
|
58
|
1820 wev->handler = ngx_http_empty_handler;
|
|
0
|
1821
|
|
|
1822 if (b->pos < b->last) {
|
|
|
1823
|
|
|
1824 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "pipelined request");
|
|
|
1825
|
|
116
|
1826 #if (NGX_STAT_STUB)
|
|
|
1827 ngx_atomic_fetch_add(ngx_stat_reading, 1);
|
|
|
1828 #endif
|
|
|
1829
|
|
0
|
1830 hc->pipeline = 1;
|
|
32
|
1831 c->log->action = "reading client pipelined request line";
|
|
116
|
1832
|
|
0
|
1833 ngx_http_init_request(rev);
|
|
|
1834 return;
|
|
|
1835 }
|
|
|
1836
|
|
|
1837 hc->pipeline = 0;
|
|
|
1838
|
|
4
|
1839 /*
|
|
|
1840 * To keep a memory footprint as small as possible for an idle
|
|
|
1841 * keepalive connection we try to free the ngx_http_request_t and
|
|
|
1842 * c->buffer's memory if they were allocated outside the c->pool.
|
|
|
1843 * The large header buffers are always allocated outside the c->pool and
|
|
|
1844 * are freed too.
|
|
|
1845 */
|
|
|
1846
|
|
0
|
1847 if (ngx_pfree(c->pool, r) == NGX_OK) {
|
|
|
1848 hc->request = NULL;
|
|
|
1849 }
|
|
|
1850
|
|
|
1851 b = c->buffer;
|
|
|
1852
|
|
|
1853 if (ngx_pfree(c->pool, b->start) == NGX_OK) {
|
|
4
|
1854
|
|
|
1855 /*
|
|
|
1856 * the special note for ngx_http_keepalive_handler() that
|
|
|
1857 * c->buffer's memory was freed
|
|
|
1858 */
|
|
|
1859
|
|
0
|
1860 b->pos = NULL;
|
|
|
1861
|
|
|
1862 } else {
|
|
|
1863 b->pos = b->start;
|
|
|
1864 b->last = b->start;
|
|
|
1865 }
|
|
|
1866
|
|
10
|
1867 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, c->log, 0, "hc free: %p %d",
|
|
0
|
1868 hc->free, hc->nfree);
|
|
|
1869
|
|
|
1870 if (hc->free) {
|
|
|
1871 for (i = 0; i < hc->nfree; i++) {
|
|
|
1872 ngx_pfree(c->pool, hc->free[i]);
|
|
|
1873 hc->free[i] = NULL;
|
|
|
1874 }
|
|
|
1875
|
|
|
1876 hc->nfree = 0;
|
|
|
1877 }
|
|
|
1878
|
|
10
|
1879 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, c->log, 0, "hc busy: %p %d",
|
|
0
|
1880 hc->busy, hc->nbusy);
|
|
|
1881
|
|
|
1882 if (hc->busy) {
|
|
|
1883 for (i = 0; i < hc->nbusy; i++) {
|
|
|
1884 ngx_pfree(c->pool, hc->busy[i]);
|
|
|
1885 hc->busy[i] = NULL;
|
|
|
1886 }
|
|
|
1887
|
|
|
1888 hc->nbusy = 0;
|
|
|
1889 }
|
|
|
1890
|
|
58
|
1891 rev->handler = ngx_http_keepalive_handler;
|
|
0
|
1892
|
|
132
|
1893 if (wev->active && (ngx_event_flags & NGX_USE_LEVEL_EVENT)) {
|
|
|
1894 if (ngx_del_event(wev, NGX_WRITE_EVENT, 0) == NGX_ERROR) {
|
|
|
1895 ngx_http_close_connection(c);
|
|
|
1896 return;
|
|
0
|
1897 }
|
|
|
1898 }
|
|
|
1899
|
|
32
|
1900 c->log->action = "keepalive";
|
|
0
|
1901
|
|
|
1902 if (c->tcp_nopush == NGX_TCP_NOPUSH_SET) {
|
|
50
|
1903 if (ngx_tcp_push(c->fd) == -1) {
|
|
0
|
1904 ngx_connection_error(c, ngx_socket_errno, ngx_tcp_push_n " failed");
|
|
|
1905 ngx_http_close_connection(c);
|
|
|
1906 return;
|
|
|
1907 }
|
|
2
|
1908
|
|
0
|
1909 c->tcp_nopush = NGX_TCP_NOPUSH_UNSET;
|
|
22
|
1910 tcp_nodelay = ngx_tcp_nodelay_and_tcp_nopush ? 1 : 0;
|
|
2
|
1911
|
|
|
1912 } else {
|
|
22
|
1913 tcp_nodelay = 1;
|
|
|
1914 }
|
|
|
1915
|
|
32
|
1916 if (tcp_nodelay
|
|
|
1917 && clcf->tcp_nodelay
|
|
|
1918 && c->tcp_nodelay == NGX_TCP_NODELAY_UNSET)
|
|
|
1919 {
|
|
22
|
1920 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "tcp_nodelay");
|
|
|
1921
|
|
|
1922 if (setsockopt(c->fd, IPPROTO_TCP, TCP_NODELAY,
|
|
184
|
1923 (const void *) &tcp_nodelay, sizeof(int))
|
|
|
1924 == -1)
|
|
22
|
1925 {
|
|
|
1926 ngx_connection_error(c, ngx_socket_errno,
|
|
|
1927 "setsockopt(TCP_NODELAY) failed");
|
|
|
1928 ngx_http_close_connection(c);
|
|
|
1929 return;
|
|
2
|
1930 }
|
|
22
|
1931
|
|
32
|
1932 c->tcp_nodelay = NGX_TCP_NODELAY_SET;
|
|
0
|
1933 }
|
|
|
1934
|
|
|
1935 #if 0
|
|
4
|
1936 /* if ngx_http_request_t was freed then we need some other place */
|
|
0
|
1937 r->http_state = NGX_HTTP_KEEPALIVE_STATE;
|
|
|
1938 #endif
|
|
|
1939
|
|
|
1940 if (rev->ready) {
|
|
|
1941 ngx_http_keepalive_handler(rev);
|
|
|
1942 }
|
|
|
1943 }
|
|
|
1944
|
|
|
1945
|
|
50
|
1946 static void
|
|
|
1947 ngx_http_keepalive_handler(ngx_event_t *rev)
|
|
0
|
1948 {
|
|
50
|
1949 size_t size;
|
|
|
1950 ssize_t n;
|
|
|
1951 ngx_buf_t *b;
|
|
|
1952 ngx_connection_t *c;
|
|
0
|
1953
|
|
|
1954 c = rev->data;
|
|
|
1955
|
|
|
1956 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "http keepalive handler");
|
|
|
1957
|
|
|
1958 if (rev->timedout) {
|
|
|
1959 ngx_http_close_connection(c);
|
|
|
1960 return;
|
|
|
1961 }
|
|
|
1962
|
|
18
|
1963 #if (NGX_HAVE_KQUEUE)
|
|
0
|
1964
|
|
4
|
1965 if (ngx_event_flags & NGX_USE_KQUEUE_EVENT) {
|
|
136
|
1966 if (rev->pending_eof) {
|
|
32
|
1967 c->log->handler = NULL;
|
|
0
|
1968 ngx_log_error(NGX_LOG_INFO, c->log, rev->kq_errno,
|
|
10
|
1969 "kevent() reported that client %V closed "
|
|
32
|
1970 "keepalive connection", &c->addr_text);
|
|
22
|
1971 #if (NGX_HTTP_SSL)
|
|
|
1972 if (c->ssl) {
|
|
96
|
1973 c->ssl->no_send_shutdown = 1;
|
|
22
|
1974 }
|
|
|
1975 #endif
|
|
0
|
1976 ngx_http_close_connection(c);
|
|
|
1977 return;
|
|
|
1978 }
|
|
|
1979 }
|
|
|
1980
|
|
|
1981 #endif
|
|
|
1982
|
|
|
1983 b = c->buffer;
|
|
|
1984 size = b->end - b->start;
|
|
|
1985
|
|
|
1986 if (b->pos == NULL) {
|
|
4
|
1987
|
|
|
1988 /*
|
|
|
1989 * The c->buffer's memory was freed by ngx_http_set_keepalive().
|
|
|
1990 * However, the c->buffer->start and c->buffer->end were not changed
|
|
|
1991 * to keep the buffer size.
|
|
|
1992 */
|
|
|
1993
|
|
50
|
1994 b->pos = ngx_palloc(c->pool, size);
|
|
|
1995 if (b->pos == NULL) {
|
|
0
|
1996 ngx_http_close_connection(c);
|
|
|
1997 return;
|
|
|
1998 }
|
|
|
1999
|
|
|
2000 b->start = b->pos;
|
|
|
2001 b->last = b->pos;
|
|
|
2002 b->end = b->pos + size;
|
|
|
2003 }
|
|
|
2004
|
|
|
2005 /*
|
|
|
2006 * MSIE closes a keepalive connection with RST flag
|
|
|
2007 * so we ignore ECONNRESET here.
|
|
|
2008 */
|
|
|
2009
|
|
|
2010 c->log_error = NGX_ERROR_IGNORE_ECONNRESET;
|
|
|
2011 ngx_set_socket_errno(0);
|
|
|
2012
|
|
|
2013 n = c->recv(c, b->last, size);
|
|
|
2014 c->log_error = NGX_ERROR_INFO;
|
|
|
2015
|
|
|
2016 if (n == NGX_AGAIN) {
|
|
58
|
2017 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) {
|
|
24
|
2018 ngx_http_close_connection(c);
|
|
|
2019 }
|
|
|
2020
|
|
0
|
2021 return;
|
|
|
2022 }
|
|
|
2023
|
|
|
2024 if (n == NGX_ERROR) {
|
|
|
2025 ngx_http_close_connection(c);
|
|
|
2026 return;
|
|
|
2027 }
|
|
|
2028
|
|
32
|
2029 c->log->handler = NULL;
|
|
0
|
2030
|
|
|
2031 if (n == 0) {
|
|
|
2032 ngx_log_error(NGX_LOG_INFO, c->log, ngx_socket_errno,
|
|
32
|
2033 "client %V closed keepalive connection", &c->addr_text);
|
|
0
|
2034 ngx_http_close_connection(c);
|
|
|
2035 return;
|
|
|
2036 }
|
|
|
2037
|
|
|
2038 b->last += n;
|
|
32
|
2039
|
|
116
|
2040 #if (NGX_STAT_STUB)
|
|
|
2041 ngx_atomic_fetch_add(ngx_stat_reading, 1);
|
|
|
2042 #endif
|
|
|
2043
|
|
32
|
2044 c->log->handler = ngx_http_log_error;
|
|
|
2045 c->log->action = "reading client request line";
|
|
0
|
2046
|
|
|
2047 ngx_http_init_request(rev);
|
|
|
2048 }
|
|
|
2049
|
|
|
2050
|
|
50
|
2051 static void
|
|
|
2052 ngx_http_set_lingering_close(ngx_http_request_t *r)
|
|
126
|
2053 {
|
|
0
|
2054 ngx_event_t *rev, *wev;
|
|
|
2055 ngx_connection_t *c;
|
|
|
2056 ngx_http_core_loc_conf_t *clcf;
|
|
|
2057
|
|
|
2058 c = r->connection;
|
|
|
2059
|
|
|
2060 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
2061
|
|
|
2062 rev = c->read;
|
|
58
|
2063 rev->handler = ngx_http_lingering_close_handler;
|
|
0
|
2064
|
|
106
|
2065 r->lingering_time = ngx_time() + (time_t) (clcf->lingering_time / 1000);
|
|
0
|
2066 ngx_add_timer(rev, clcf->lingering_timeout);
|
|
|
2067
|
|
58
|
2068 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) {
|
|
0
|
2069 ngx_http_close_request(r, 0);
|
|
|
2070 return;
|
|
|
2071 }
|
|
|
2072
|
|
|
2073 wev = c->write;
|
|
58
|
2074 wev->handler = ngx_http_empty_handler;
|
|
0
|
2075
|
|
132
|
2076 if (wev->active && (ngx_event_flags & NGX_USE_LEVEL_EVENT)) {
|
|
|
2077 if (ngx_del_event(wev, NGX_WRITE_EVENT, 0) == NGX_ERROR) {
|
|
|
2078 ngx_http_close_request(r, 0);
|
|
|
2079 return;
|
|
0
|
2080 }
|
|
|
2081 }
|
|
|
2082
|
|
|
2083 if (ngx_shutdown_socket(c->fd, NGX_WRITE_SHUTDOWN) == -1) {
|
|
|
2084 ngx_connection_error(c, ngx_socket_errno,
|
|
|
2085 ngx_shutdown_socket_n " failed");
|
|
|
2086 ngx_http_close_request(r, 0);
|
|
|
2087 return;
|
|
|
2088 }
|
|
|
2089
|
|
|
2090 if (rev->ready) {
|
|
|
2091 ngx_http_lingering_close_handler(rev);
|
|
|
2092 }
|
|
|
2093 }
|
|
|
2094
|
|
|
2095
|
|
50
|
2096 static void
|
|
|
2097 ngx_http_lingering_close_handler(ngx_event_t *rev)
|
|
0
|
2098 {
|
|
|
2099 ssize_t n;
|
|
|
2100 ngx_msec_t timer;
|
|
|
2101 ngx_connection_t *c;
|
|
|
2102 ngx_http_request_t *r;
|
|
|
2103 ngx_http_core_loc_conf_t *clcf;
|
|
|
2104 u_char buffer[NGX_HTTP_LINGERING_BUFFER_SIZE];
|
|
|
2105
|
|
|
2106 c = rev->data;
|
|
|
2107 r = c->data;
|
|
|
2108
|
|
|
2109 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
|
2110 "http lingering close handler");
|
|
|
2111
|
|
|
2112 if (rev->timedout) {
|
|
126
|
2113 c->timedout = 1;
|
|
0
|
2114 ngx_http_close_request(r, 0);
|
|
|
2115 return;
|
|
|
2116 }
|
|
|
2117
|
|
|
2118 timer = r->lingering_time - ngx_time();
|
|
|
2119 if (timer <= 0) {
|
|
|
2120 ngx_http_close_request(r, 0);
|
|
|
2121 return;
|
|
|
2122 }
|
|
|
2123
|
|
|
2124 do {
|
|
|
2125 n = c->recv(c, buffer, NGX_HTTP_LINGERING_BUFFER_SIZE);
|
|
|
2126
|
|
|
2127 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0, "lingering read: %d", n);
|
|
|
2128
|
|
|
2129 if (n == NGX_ERROR || n == 0) {
|
|
|
2130 ngx_http_close_request(r, 0);
|
|
|
2131 return;
|
|
|
2132 }
|
|
|
2133
|
|
|
2134 } while (rev->ready);
|
|
|
2135
|
|
58
|
2136 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) {
|
|
26
|
2137 ngx_http_close_request(r, 0);
|
|
24
|
2138 return;
|
|
|
2139 }
|
|
|
2140
|
|
0
|
2141 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
2142
|
|
|
2143 timer *= 1000;
|
|
|
2144
|
|
|
2145 if (timer > clcf->lingering_timeout) {
|
|
|
2146 timer = clcf->lingering_timeout;
|
|
|
2147 }
|
|
|
2148
|
|
|
2149 ngx_add_timer(rev, timer);
|
|
|
2150 }
|
|
|
2151
|
|
|
2152
|
|
50
|
2153 void
|
|
|
2154 ngx_http_empty_handler(ngx_event_t *wev)
|
|
0
|
2155 {
|
|
|
2156 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, wev->log, 0, "http empty handler");
|
|
|
2157
|
|
|
2158 return;
|
|
|
2159 }
|
|
|
2160
|
|
|
2161
|
|
58
|
2162 void
|
|
|
2163 ngx_http_request_empty_handler(ngx_http_request_t *r)
|
|
|
2164 {
|
|
|
2165 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
132
|
2166 "http request empty handler");
|
|
58
|
2167
|
|
|
2168 return;
|
|
|
2169 }
|
|
|
2170
|
|
|
2171
|
|
50
|
2172 ngx_int_t
|
|
130
|
2173 ngx_http_send_special(ngx_http_request_t *r, ngx_uint_t flags)
|
|
0
|
2174 {
|
|
|
2175 ngx_buf_t *b;
|
|
|
2176 ngx_chain_t out;
|
|
|
2177
|
|
50
|
2178 b = ngx_calloc_buf(r->pool);
|
|
|
2179 if (b == NULL) {
|
|
0
|
2180 return NGX_ERROR;
|
|
|
2181 }
|
|
|
2182
|
|
130
|
2183 if (flags & NGX_HTTP_LAST) {
|
|
|
2184 b->last_buf = 1;
|
|
|
2185 }
|
|
|
2186
|
|
|
2187 if (flags & NGX_HTTP_FLUSH) {
|
|
|
2188 b->flush = 1;
|
|
|
2189 }
|
|
|
2190
|
|
0
|
2191 out.buf = b;
|
|
|
2192 out.next = NULL;
|
|
|
2193
|
|
|
2194 return ngx_http_output_filter(r, &out);
|
|
|
2195 }
|
|
|
2196
|
|
|
2197
|
|
162
|
2198 static ngx_int_t
|
|
|
2199 ngx_http_post_action(ngx_http_request_t *r)
|
|
|
2200 {
|
|
|
2201 ngx_http_core_loc_conf_t *clcf;
|
|
|
2202
|
|
|
2203 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
2204
|
|
|
2205 if (clcf->post_action.data == NULL) {
|
|
|
2206 return NGX_DECLINED;
|
|
|
2207 }
|
|
|
2208
|
|
172
|
2209 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
2210 "post action: \"%V\"", &clcf->post_action);
|
|
|
2211
|
|
162
|
2212 r->http_version = NGX_HTTP_VERSION_9;
|
|
|
2213 r->header_only = 1;
|
|
178
|
2214 r->post_action = 1;
|
|
162
|
2215
|
|
|
2216 ngx_http_internal_redirect(r, &clcf->post_action, NULL);
|
|
|
2217
|
|
|
2218 return NGX_OK;
|
|
|
2219 }
|
|
|
2220
|
|
|
2221
|
|
|
2222 static void
|
|
58
|
2223 ngx_http_close_request(ngx_http_request_t *r, ngx_int_t error)
|
|
0
|
2224 {
|
|
188
|
2225 ngx_connection_t *c;
|
|
118
|
2226
|
|
|
2227 c = r->connection;
|
|
188
|
2228
|
|
|
2229 ngx_http_request_done(r->main, error);
|
|
118
|
2230 ngx_http_close_connection(c);
|
|
|
2231 }
|
|
|
2232
|
|
|
2233
|
|
162
|
2234 static void
|
|
118
|
2235 ngx_http_request_done(ngx_http_request_t *r, ngx_int_t error)
|
|
|
2236 {
|
|
|
2237 ngx_log_t *log;
|
|
130
|
2238 ngx_uint_t i, n;
|
|
118
|
2239 struct linger linger;
|
|
188
|
2240 ngx_http_cleanup_t *cln;
|
|
118
|
2241 ngx_http_log_ctx_t *ctx;
|
|
130
|
2242 ngx_http_handler_pt *log_handler;
|
|
118
|
2243 ngx_http_core_loc_conf_t *clcf;
|
|
|
2244 ngx_http_core_main_conf_t *cmcf;
|
|
0
|
2245
|
|
|
2246 log = r->connection->log;
|
|
|
2247
|
|
|
2248 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, log, 0, "http close request");
|
|
|
2249
|
|
|
2250 if (r->pool == NULL) {
|
|
80
|
2251 ngx_log_error(NGX_LOG_ALERT, log, 0, "http request already closed");
|
|
0
|
2252 return;
|
|
|
2253 }
|
|
|
2254
|
|
188
|
2255 for (cln = r->cleanup; cln; cln = cln->next) {
|
|
|
2256 if (cln->handler) {
|
|
|
2257 cln->handler(cln->data);
|
|
|
2258 }
|
|
|
2259 }
|
|
|
2260
|
|
0
|
2261 #if (NGX_STAT_STUB)
|
|
116
|
2262
|
|
0
|
2263 if (r->stat_reading) {
|
|
110
|
2264 ngx_atomic_fetch_add(ngx_stat_reading, -1);
|
|
0
|
2265 }
|
|
|
2266
|
|
|
2267 if (r->stat_writing) {
|
|
110
|
2268 ngx_atomic_fetch_add(ngx_stat_writing, -1);
|
|
0
|
2269 }
|
|
116
|
2270
|
|
0
|
2271 #endif
|
|
|
2272
|
|
|
2273 if (error && r->headers_out.status == 0) {
|
|
|
2274 r->headers_out.status = error;
|
|
|
2275 }
|
|
|
2276
|
|
118
|
2277 cmcf = ngx_http_get_module_main_conf(r, ngx_http_core_module);
|
|
|
2278
|
|
130
|
2279 log_handler = cmcf->phases[NGX_HTTP_LOG_PHASE].handlers.elts;
|
|
|
2280 n = cmcf->phases[NGX_HTTP_LOG_PHASE].handlers.nelts;
|
|
|
2281 for (i = 0; i < n; i++) {
|
|
|
2282 log_handler[i](r);
|
|
118
|
2283 }
|
|
0
|
2284
|
|
|
2285 if (r->connection->timedout) {
|
|
|
2286 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
2287
|
|
|
2288 if (clcf->reset_timedout_connection) {
|
|
58
|
2289 linger.l_onoff = 1;
|
|
|
2290 linger.l_linger = 0;
|
|
0
|
2291
|
|
|
2292 if (setsockopt(r->connection->fd, SOL_SOCKET, SO_LINGER,
|
|
58
|
2293 (const void *) &linger, sizeof(struct linger)) == -1)
|
|
0
|
2294 {
|
|
|
2295 ngx_log_error(NGX_LOG_ALERT, log, ngx_socket_errno,
|
|
|
2296 "setsockopt(SO_LINGER) failed");
|
|
|
2297 }
|
|
|
2298 }
|
|
|
2299 }
|
|
|
2300
|
|
58
|
2301 /* the various request strings were allocated from r->pool */
|
|
0
|
2302 ctx = log->data;
|
|
10
|
2303 ctx->request = NULL;
|
|
0
|
2304
|
|
|
2305 r->request_line.len = 0;
|
|
|
2306
|
|
132
|
2307 r->connection->destroyed = 1;
|
|
|
2308
|
|
0
|
2309 ngx_destroy_pool(r->pool);
|
|
|
2310 }
|
|
|
2311
|
|
|
2312
|
|
80
|
2313 static void
|
|
50
|
2314 ngx_http_close_connection(ngx_connection_t *c)
|
|
0
|
2315 {
|
|
28
|
2316 ngx_pool_t *pool;
|
|
|
2317
|
|
0
|
2318 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
|
2319 "close http connection: %d", c->fd);
|
|
|
2320
|
|
88
|
2321 #if (NGX_HTTP_SSL)
|
|
2
|
2322
|
|
|
2323 if (c->ssl) {
|
|
|
2324 if (ngx_ssl_shutdown(c) == NGX_AGAIN) {
|
|
126
|
2325 c->ssl->handler = ngx_http_close_connection;
|
|
2
|
2326 return;
|
|
|
2327 }
|
|
|
2328 }
|
|
|
2329
|
|
|
2330 #endif
|
|
|
2331
|
|
0
|
2332 #if (NGX_STAT_STUB)
|
|
110
|
2333 ngx_atomic_fetch_add(ngx_stat_active, -1);
|
|
0
|
2334 #endif
|
|
|
2335
|
|
132
|
2336 c->destroyed = 1;
|
|
|
2337
|
|
28
|
2338 pool = c->pool;
|
|
|
2339
|
|
0
|
2340 ngx_close_connection(c);
|
|
28
|
2341
|
|
50
|
2342 ngx_destroy_pool(pool);
|
|
0
|
2343 }
|
|
|
2344
|
|
|
2345
|
|
50
|
2346 static u_char *
|
|
|
2347 ngx_http_log_error(ngx_log_t *log, u_char *buf, size_t len)
|
|
0
|
2348 {
|
|
32
|
2349 u_char *p;
|
|
54
|
2350 ngx_http_request_t *r;
|
|
32
|
2351 ngx_http_log_ctx_t *ctx;
|
|
10
|
2352
|
|
32
|
2353 if (log->action) {
|
|
58
|
2354 p = ngx_snprintf(buf, len, " while %s", log->action);
|
|
10
|
2355 len -= p - buf;
|
|
54
|
2356 buf = p;
|
|
10
|
2357 }
|
|
|
2358
|
|
58
|
2359 ctx = log->data;
|
|
|
2360
|
|
54
|
2361 p = ngx_snprintf(buf, len, ", client: %V", ctx->client);
|
|
58
|
2362 len -= p - buf;
|
|
54
|
2363
|
|
|
2364 r = ctx->request;
|
|
|
2365
|
|
58
|
2366 if (r) {
|
|
|
2367 return r->log_handler(r, p, len);
|
|
0
|
2368 }
|
|
10
|
2369
|
|
58
|
2370 return p;
|
|
|
2371 }
|
|
|
2372
|
|
|
2373
|
|
|
2374 static u_char *
|
|
|
2375 ngx_http_log_error_handler(ngx_http_request_t *r, u_char *buf, size_t len)
|
|
|
2376 {
|
|
|
2377 u_char *p;
|
|
54
|
2378
|
|
|
2379 if (r->server_name.data) {
|
|
|
2380 p = ngx_snprintf(buf, len, ", server: %V", &r->server_name);
|
|
52
|
2381 len -= p - buf;
|
|
54
|
2382 buf = p;
|
|
52
|
2383 }
|
|
|
2384
|
|
54
|
2385 if (r->unparsed_uri.data) {
|
|
|
2386 p = ngx_snprintf(buf, len, ", URL: \"%V\"", &r->unparsed_uri);
|
|
|
2387 len -= p - buf;
|
|
|
2388 buf = p;
|
|
|
2389
|
|
|
2390 } else {
|
|
|
2391 if (r->request_line.data == NULL && r->request_start) {
|
|
|
2392 for (p = r->request_start; p < r->header_in->last; p++) {
|
|
|
2393 if (*p == CR || *p == LF) {
|
|
|
2394 break;
|
|
|
2395 }
|
|
|
2396 }
|
|
|
2397
|
|
|
2398 r->request_line.len = p - r->request_start;
|
|
|
2399 r->request_line.data = r->request_start;
|
|
|
2400 }
|
|
|
2401
|
|
|
2402 if (r->request_line.len) {
|
|
|
2403 p = ngx_snprintf(buf, len, ", request: \"%V\"", &r->request_line);
|
|
|
2404 len -= p - buf;
|
|
|
2405 buf = p;
|
|
|
2406 }
|
|
10
|
2407 }
|
|
|
2408
|
|
54
|
2409 return ngx_http_log_error_info(r, buf, len);
|
|
0
|
2410 }
|
|
54
|
2411
|
|
|
2412
|
|
|
2413 u_char *
|
|
|
2414 ngx_http_log_error_info(ngx_http_request_t *r, u_char *buf, size_t len)
|
|
|
2415 {
|
|
|
2416 u_char *p;
|
|
|
2417
|
|
|
2418 if (r->headers_in.host) {
|
|
|
2419 p = ngx_snprintf(buf, len, ", host: \"%V\"",
|
|
|
2420 &r->headers_in.host->value);
|
|
|
2421 len -= p - buf;
|
|
|
2422 buf = p;
|
|
|
2423 }
|
|
|
2424
|
|
|
2425 if (r->headers_in.referer) {
|
|
|
2426 p = ngx_snprintf(buf, len, ", referrer: \"%V\"",
|
|
|
2427 &r->headers_in.referer->value);
|
|
|
2428 buf = p;
|
|
|
2429 }
|
|
|
2430
|
|
|
2431 return buf;
|
|
|
2432 }
|
