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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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26
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28 static ngx_int_t ngx_http_find_virtual_server(ngx_http_request_t *r);
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0
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29
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58
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30 static void ngx_http_request_handler(ngx_event_t *ev);
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74
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31 static ngx_int_t ngx_http_set_write_handler(ngx_http_request_t *r);
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58
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32 static void ngx_http_writer(ngx_http_request_t *r);
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33 static ngx_int_t ngx_http_postponed_handler(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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36 static void ngx_http_read_discarded_body_handler(ngx_http_request_t *r);
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0
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37 static ngx_int_t ngx_http_read_discarded_body(ngx_http_request_t *r);
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38
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39 static void ngx_http_set_keepalive(ngx_http_request_t *r);
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40 static void ngx_http_keepalive_handler(ngx_event_t *ev);
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41 static void ngx_http_set_lingering_close(ngx_http_request_t *r);
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42 static void ngx_http_lingering_close_handler(ngx_event_t *ev);
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80
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43 static void ngx_http_close_request(ngx_http_request_t *r, ngx_int_t error);
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118
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44 static void ngx_http_request_done(ngx_http_request_t *r, ngx_int_t error);
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80
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45 static void ngx_http_close_connection(ngx_connection_t *c);
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0
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46
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32
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47 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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48 static u_char *ngx_http_log_error_handler(ngx_http_request_t *r, u_char *buf,
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49 size_t len);
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0
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50
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88
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51 #if (NGX_HTTP_SSL)
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52 static void ngx_http_ssl_handshake(ngx_event_t *rev);
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96
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53 static void ngx_http_ssl_handshake_handler(ngx_connection_t *c);
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88
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54 #endif
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55
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0
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56
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54
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57 static char *ngx_http_client_errors[] = {
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58
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59 /* NGX_HTTP_PARSE_INVALID_METHOD */
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60 "client sent invalid method",
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61
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62 /* NGX_HTTP_PARSE_INVALID_REQUEST */
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63 "client sent invalid request",
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64
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65 /* NGX_HTTP_PARSE_INVALID_09_METHOD */
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66 "client sent invalid method in HTTP/0.9 request"
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0
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67 };
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68
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69
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70 ngx_http_header_t ngx_http_headers_in[] = {
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58
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71 { ngx_string("Host"), offsetof(ngx_http_headers_in_t, host),
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72
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72 ngx_http_process_unique_header_line },
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58
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73
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74 { ngx_string("Connection"), offsetof(ngx_http_headers_in_t, connection),
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72
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75 ngx_http_process_unique_header_line },
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58
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76
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0
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77 { ngx_string("If-Modified-Since"),
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58
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78 offsetof(ngx_http_headers_in_t, if_modified_since),
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79 ngx_http_process_header_line },
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80
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81 { ngx_string("User-Agent"), offsetof(ngx_http_headers_in_t, user_agent),
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82 ngx_http_process_header_line },
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83
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84 { ngx_string("Referer"), offsetof(ngx_http_headers_in_t, referer),
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85 ngx_http_process_header_line },
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86
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0
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87 { ngx_string("Content-Length"),
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58
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88 offsetof(ngx_http_headers_in_t, content_length),
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72
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89 ngx_http_process_unique_header_line },
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58
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90
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28
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91 { ngx_string("Content-Type"),
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58
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92 offsetof(ngx_http_headers_in_t, content_type),
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93 ngx_http_process_header_line },
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94
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95 { ngx_string("Range"), offsetof(ngx_http_headers_in_t, range),
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96 ngx_http_process_header_line },
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97
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0
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98 #if (NGX_HTTP_GZIP)
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99 { ngx_string("Accept-Encoding"),
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58
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100 offsetof(ngx_http_headers_in_t, accept_encoding),
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101 ngx_http_process_header_line },
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102
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103 { ngx_string("Via"), offsetof(ngx_http_headers_in_t, via),
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104 ngx_http_process_header_line },
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0
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105 #endif
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106
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107 { ngx_string("Authorization"),
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58
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108 offsetof(ngx_http_headers_in_t, authorization),
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72
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109 ngx_http_process_unique_header_line },
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58
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110
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111 { ngx_string("Keep-Alive"), offsetof(ngx_http_headers_in_t, keep_alive),
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112 ngx_http_process_header_line },
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0
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113
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122
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114 #if (NGX_HTTP_PROXY || NGX_HTTP_REALIP)
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0
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115 { ngx_string("X-Forwarded-For"),
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58
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116 offsetof(ngx_http_headers_in_t, x_forwarded_for),
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117 ngx_http_process_header_line },
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0
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118 #endif
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28
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119
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122
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120 #if (NGX_HTTP_REALIP)
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121 { ngx_string("X-Real-IP"),
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122 offsetof(ngx_http_headers_in_t, x_real_ip),
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123 ngx_http_process_header_line },
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124 #endif
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125
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38
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126 #if (NGX_HTTP_HEADERS)
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58
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127 { ngx_string("Accept"), offsetof(ngx_http_headers_in_t, accept),
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128 ngx_http_process_header_line },
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129
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38
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130 { ngx_string("Accept-Language"),
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58
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131 offsetof(ngx_http_headers_in_t, accept_language),
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132 ngx_http_process_header_line },
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38
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133 #endif
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134
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58
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135 { ngx_string("Cookie"), 0, ngx_http_process_cookie },
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136
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137 { ngx_null_string, 0, NULL }
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0
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138 };
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139
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140
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50
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141 void
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142 ngx_http_init_connection(ngx_connection_t *c)
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0
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143 {
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144 ngx_event_t *rev;
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145 ngx_http_log_ctx_t *ctx;
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146
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50
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147 ctx = ngx_palloc(c->pool, sizeof(ngx_http_log_ctx_t));
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148 if (ctx == NULL) {
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0
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149 ngx_http_close_connection(c);
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150 return;
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151 }
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152
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10
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153 ctx->client = &c->addr_text;
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154 ctx->request = NULL;
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32
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155
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156 c->log->connection = c->number;
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157 c->log->handler = ngx_http_log_error;
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158 c->log->data = ctx;
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32
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159 c->log->action = "reading client request line";
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160
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161 c->log_error = NGX_ERROR_INFO;
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162
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163 rev = c->read;
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58
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164 rev->handler = ngx_http_init_request;
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118
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165 c->write->handler = ngx_http_empty_handler;
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0
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166
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116
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167 #if (NGX_STAT_STUB)
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168 ngx_atomic_fetch_add(ngx_stat_reading, 1);
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169 #endif
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170
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0
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171 if (rev->ready) {
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172 /* the deferred accept(), rtsig, aio, iocp */
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173
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174 if (ngx_accept_mutex) {
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112
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175 ngx_post_event(rev, &ngx_posted_events);
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0
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176 return;
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177 }
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178
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179 ngx_http_init_request(rev);
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180 return;
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181 }
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182
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183 ngx_add_timer(rev, c->listening->post_accept_timeout);
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184
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185 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) {
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116
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186 #if (NGX_STAT_STUB)
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187 ngx_atomic_fetch_add(ngx_stat_reading, -1);
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188 #endif
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0
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189 ngx_http_close_connection(c);
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190 return;
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191 }
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192 }
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193
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194
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50
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195 static
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196 void ngx_http_init_request(ngx_event_t *rev)
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0
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197 {
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122
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198 ngx_uint_t i;
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199 socklen_t len;
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200 struct sockaddr_in sin;
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201 ngx_connection_t *c;
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202 ngx_http_request_t *r;
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203 ngx_http_in_port_t *in_port;
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204 ngx_http_in_addr_t *in_addr;
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205 ngx_http_log_ctx_t *ctx;
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206 ngx_http_connection_t *hc;
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207 ngx_http_server_name_t *server_name;
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208 ngx_http_core_srv_conf_t *cscf;
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209 ngx_http_core_loc_conf_t *clcf;
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210 ngx_http_core_main_conf_t *cmcf;
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0
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211 #if (NGX_HTTP_SSL)
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122
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212 ngx_http_ssl_srv_conf_t *sscf;
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0
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213 #endif
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214
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116
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215 #if (NGX_STAT_STUB)
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216 ngx_atomic_fetch_add(ngx_stat_reading, -1);
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217 #endif
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218
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0
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219 c = rev->data;
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220
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221 if (rev->timedout) {
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222 ngx_log_error(NGX_LOG_INFO, c->log, NGX_ETIMEDOUT, "client timed out");
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223
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224 ngx_http_close_connection(c);
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225 return;
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226 }
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227
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228 hc = c->data;
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229
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116
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230 if (hc == NULL) {
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50
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231 hc = ngx_pcalloc(c->pool, sizeof(ngx_http_connection_t));
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232 if (hc == NULL) {
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0
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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
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238 r = hc->request;
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239
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240 if (r) {
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241 ngx_memzero(r, sizeof(ngx_http_request_t));
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242
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243 r->pipeline = hc->pipeline;
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244
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245 if (hc->nbusy) {
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246 r->header_in = hc->busy[0];
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247 }
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248
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249 } else {
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50
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250 r = ngx_pcalloc(c->pool, sizeof(ngx_http_request_t));
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251 if (r == NULL) {
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0
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252 ngx_http_close_connection(c);
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253 return;
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254 }
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255
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256 hc->request = r;
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257 }
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258
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259 c->data = r;
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260 r->http_connection = hc;
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261
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262 c->sent = 0;
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263 r->signature = NGX_HTTP_MODULE;
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264
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265 /* find the server configuration for the address:port */
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266
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267 /* AF_INET only */
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268
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269 in_port = c->servers;
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270 in_addr = in_port->addrs.elts;
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271
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272 r->port = in_port->port;
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273 r->port_text = &in_port->port_text;
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274
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275 i = 0;
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276
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277 if (in_port->addrs.nelts > 1) {
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278
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279 /*
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280 * There are several addresses on this port and one of them
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281 * is the "*:port" wildcard so getsockname() is needed to determine
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282 * the server address.
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283 *
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284 * AcceptEx() already gave this address.
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285 */
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286
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10
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287 #if (NGX_WIN32)
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0
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288 if (c->local_sockaddr) {
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289 r->in_addr =
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290 ((struct sockaddr_in *) c->local_sockaddr)->sin_addr.s_addr;
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291
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28
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292 } else
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0
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293 #endif
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28
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294 {
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0
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295 len = sizeof(struct sockaddr_in);
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28
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296 if (getsockname(c->fd, (struct sockaddr *) &sin, &len) == -1) {
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0
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297 ngx_connection_error(c, ngx_socket_errno,
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298 "getsockname() failed");
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299 ngx_http_close_connection(c);
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300 return;
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301 }
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302
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28
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303 r->in_addr = sin.sin_addr.s_addr;
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0
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304 }
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305
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306 /* the last in_port->addrs address is "*" */
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307
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308 for ( /* void */ ; i < in_port->addrs.nelts - 1; i++) {
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309 if (in_addr[i].addr == r->in_addr) {
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310 break;
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311 }
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312 }
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313
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314 } else {
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315 r->in_addr = in_addr[0].addr;
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316 }
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317
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26
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318 r->virtual_names = &in_addr[i];
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0
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319
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320 /* the default server configuration for the address:port */
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321 cscf = in_addr[i].core_srv_conf;
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322
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323 r->main_conf = cscf->ctx->main_conf;
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324 r->srv_conf = cscf->ctx->srv_conf;
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325 r->loc_conf = cscf->ctx->loc_conf;
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326
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58
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327 rev->handler = ngx_http_process_request_line;
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0
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328
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329 #if (NGX_HTTP_SSL)
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330
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331 sscf = ngx_http_get_module_srv_conf(r, ngx_http_ssl_module);
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332 if (sscf->enable) {
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333
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334 if (c->ssl == NULL) {
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96
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335 if (ngx_ssl_create_connection(&sscf->ssl, c, NGX_SSL_BUFFER)
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56
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336 == NGX_ERROR)
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0
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337 {
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338 ngx_http_close_connection(c);
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339 return;
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340 }
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341
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58
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342 rev->handler = ngx_http_ssl_handshake;
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0
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343 }
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344
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62
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345 r->main_filter_need_in_memory = 1;
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0
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346 }
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347
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348 #endif
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349
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350 server_name = cscf->server_names.elts;
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6
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351 r->server_name = server_name->name;
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0
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352
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353 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
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354 c->log->file = clcf->err_log->file;
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355 if (!(c->log->log_level & NGX_LOG_DEBUG_CONNECTION)) {
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356 c->log->log_level = clcf->err_log->log_level;
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357 }
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358
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359 if (c->buffer == NULL) {
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360 c->buffer = ngx_create_temp_buf(c->pool,
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361 cscf->client_header_buffer_size);
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362 if (c->buffer == NULL) {
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363 ngx_http_close_connection(c);
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364 return;
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365 }
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366 }
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367
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368 if (r->header_in == NULL) {
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369 r->header_in = c->buffer;
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370 }
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371
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50
|
372 r->pool = ngx_create_pool(cscf->request_pool_size, c->log);
|
|
|
373 if (r->pool == NULL) {
|
|
0
|
374 ngx_http_close_connection(c);
|
|
|
375 return;
|
|
|
376 }
|
|
|
377
|
|
|
378
|
|
|
379 if (ngx_list_init(&r->headers_out.headers, r->pool, 20,
|
|
58
|
380 sizeof(ngx_table_elt_t)) == NGX_ERROR)
|
|
0
|
381 {
|
|
|
382 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
383 return;
|
|
|
384 }
|
|
|
385
|
|
|
386 r->ctx = ngx_pcalloc(r->pool, sizeof(void *) * ngx_http_max_module);
|
|
|
387 if (r->ctx == NULL) {
|
|
|
388 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
389 return;
|
|
|
390 }
|
|
|
391
|
|
122
|
392 cmcf = ngx_http_get_module_main_conf(r, ngx_http_core_module);
|
|
|
393
|
|
|
394 r->variables = ngx_pcalloc(r->pool, cmcf->variables.nelts
|
|
|
395 * sizeof(ngx_http_variable_value_t));
|
|
|
396 if (r->variables == NULL) {
|
|
|
397 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
398 return;
|
|
|
399 }
|
|
|
400
|
|
0
|
401 c->single_connection = 1;
|
|
|
402 r->connection = c;
|
|
|
403
|
|
102
|
404 r->main = r;
|
|
|
405
|
|
46
|
406 r->start_time = ngx_time();
|
|
|
407
|
|
0
|
408 r->headers_in.content_length_n = -1;
|
|
|
409 r->headers_in.keep_alive_n = -1;
|
|
|
410 r->headers_out.content_length_n = -1;
|
|
|
411 r->headers_out.last_modified_time = -1;
|
|
|
412
|
|
|
413 r->http_state = NGX_HTTP_READING_REQUEST_STATE;
|
|
|
414
|
|
54
|
415 ctx = c->log->data;
|
|
|
416 ctx->request = r;
|
|
58
|
417 r->log_handler = ngx_http_log_error_handler;
|
|
54
|
418
|
|
0
|
419 #if (NGX_STAT_STUB)
|
|
110
|
420 ngx_atomic_fetch_add(ngx_stat_reading, 1);
|
|
26
|
421 r->stat_reading = 1;
|
|
110
|
422 ngx_atomic_fetch_add(ngx_stat_requests, 1);
|
|
0
|
423 #endif
|
|
|
424
|
|
58
|
425 rev->handler(rev);
|
|
0
|
426 }
|
|
|
427
|
|
|
428
|
|
|
429 #if (NGX_HTTP_SSL)
|
|
|
430
|
|
50
|
431 static void
|
|
|
432 ngx_http_ssl_handshake(ngx_event_t *rev)
|
|
0
|
433 {
|
|
10
|
434 u_char buf[1];
|
|
|
435 ssize_t n;
|
|
0
|
436 ngx_int_t rc;
|
|
|
437 ngx_connection_t *c;
|
|
|
438 ngx_http_request_t *r;
|
|
|
439
|
|
|
440 c = rev->data;
|
|
|
441 r = c->data;
|
|
|
442
|
|
|
443 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, rev->log, 0,
|
|
|
444 "http check ssl handshake");
|
|
|
445
|
|
|
446 if (rev->timedout) {
|
|
54
|
447 ngx_log_error(NGX_LOG_INFO, c->log, NGX_ETIMEDOUT, "client timed out");
|
|
|
448 c->timedout = 1;
|
|
|
449 ngx_http_close_request(r, NGX_HTTP_REQUEST_TIME_OUT);
|
|
0
|
450 return;
|
|
|
451 }
|
|
|
452
|
|
126
|
453 n = recv(c->fd, buf, 1, MSG_PEEK);
|
|
0
|
454
|
|
|
455 if (n == -1 && ngx_socket_errno == NGX_EAGAIN) {
|
|
|
456 return;
|
|
|
457 }
|
|
|
458
|
|
|
459 if (n == 1) {
|
|
|
460 if (buf[0] == 0x80 /* SSLv2 */ || buf[0] == 0x16 /* SSLv3/TLSv1 */) {
|
|
|
461 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, rev->log, 0,
|
|
10
|
462 "https ssl handshake: 0x%02Xd", buf[0]);
|
|
0
|
463
|
|
|
464 rc = ngx_ssl_handshake(c);
|
|
|
465
|
|
96
|
466 if (rc == NGX_AGAIN) {
|
|
|
467 c->ssl->handler = ngx_http_ssl_handshake_handler;
|
|
0
|
468 return;
|
|
|
469 }
|
|
|
470
|
|
96
|
471 ngx_http_ssl_handshake_handler(c);
|
|
|
472
|
|
|
473 return;
|
|
0
|
474
|
|
|
475 } else {
|
|
|
476 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, rev->log, 0,
|
|
|
477 "plain http");
|
|
|
478
|
|
|
479 r->plain_http = 1;
|
|
|
480 }
|
|
|
481 }
|
|
|
482
|
|
58
|
483 rev->handler = ngx_http_process_request_line;
|
|
0
|
484 ngx_http_process_request_line(rev);
|
|
|
485 }
|
|
|
486
|
|
96
|
487
|
|
|
488 static void
|
|
|
489 ngx_http_ssl_handshake_handler(ngx_connection_t *c)
|
|
|
490 {
|
|
|
491 ngx_http_request_t *r;
|
|
|
492
|
|
|
493 if (c->ssl->handshaked) {
|
|
|
494
|
|
|
495 /*
|
|
|
496 * The majority of browsers do not send the "close notify" alert.
|
|
|
497 * Among them are MSIE, old Mozilla, Netscape 4, Konqueror,
|
|
|
498 * and Links. And what is more, MSIE ignores the server's alert.
|
|
|
499 *
|
|
|
500 * Opera and recent Mozilla send the alert.
|
|
|
501 */
|
|
|
502
|
|
|
503 c->ssl->no_wait_shutdown = 1;
|
|
|
504
|
|
|
505 c->read->handler = ngx_http_process_request_line;
|
|
|
506 /* STUB: epoll edge */ c->write->handler = ngx_http_empty_handler;
|
|
|
507
|
|
|
508 ngx_http_process_request_line(c->read);
|
|
|
509
|
|
|
510 return;
|
|
|
511 }
|
|
|
512
|
|
|
513 r = c->data;
|
|
|
514
|
|
|
515 ngx_http_close_request(r, NGX_HTTP_BAD_REQUEST);
|
|
|
516
|
|
|
517 return;
|
|
|
518 }
|
|
|
519
|
|
|
520
|
|
0
|
521 #endif
|
|
|
522
|
|
|
523
|
|
50
|
524 static void
|
|
|
525 ngx_http_process_request_line(ngx_event_t *rev)
|
|
0
|
526 {
|
|
|
527 ssize_t n;
|
|
|
528 ngx_int_t rc, rv;
|
|
|
529 ngx_connection_t *c;
|
|
|
530 ngx_http_request_t *r;
|
|
|
531 ngx_http_log_ctx_t *ctx;
|
|
|
532
|
|
|
533 c = rev->data;
|
|
|
534 r = c->data;
|
|
|
535
|
|
|
536 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, rev->log, 0,
|
|
|
537 "http process request line");
|
|
|
538
|
|
|
539 if (rev->timedout) {
|
|
54
|
540 ngx_log_error(NGX_LOG_INFO, c->log, NGX_ETIMEDOUT, "client timed out");
|
|
|
541 c->timedout = 1;
|
|
|
542 ngx_http_close_request(r, NGX_HTTP_REQUEST_TIME_OUT);
|
|
0
|
543 return;
|
|
|
544 }
|
|
|
545
|
|
|
546 rc = NGX_AGAIN;
|
|
|
547
|
|
|
548 for ( ;; ) {
|
|
|
549
|
|
|
550 if (rc == NGX_AGAIN) {
|
|
|
551 n = ngx_http_read_request_header(r);
|
|
|
552
|
|
|
553 if (n == NGX_AGAIN || n == NGX_ERROR) {
|
|
|
554 return;
|
|
|
555 }
|
|
|
556 }
|
|
|
557
|
|
|
558 rc = ngx_http_parse_request_line(r, r->header_in);
|
|
|
559
|
|
|
560 if (rc == NGX_OK) {
|
|
|
561
|
|
|
562 /* the request line has been parsed successfully */
|
|
|
563
|
|
10
|
564 r->request_line.len = r->request_end - r->request_start;
|
|
|
565 r->request_line.data = r->request_start;
|
|
|
566
|
|
0
|
567
|
|
|
568 if (r->args_start) {
|
|
|
569 r->uri.len = r->args_start - 1 - r->uri_start;
|
|
|
570 } else {
|
|
|
571 r->uri.len = r->uri_end - r->uri_start;
|
|
|
572 }
|
|
|
573
|
|
18
|
574
|
|
2
|
575 if (r->complex_uri || r->quoted_uri) {
|
|
10
|
576
|
|
50
|
577 r->uri.data = ngx_palloc(r->pool, r->uri.len + 1);
|
|
|
578 if (r->uri.data == NULL) {
|
|
10
|
579 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
580 return;
|
|
|
581 }
|
|
|
582
|
|
0
|
583 rc = ngx_http_parse_complex_uri(r);
|
|
|
584
|
|
54
|
585 if (rc == NGX_HTTP_PARSE_INVALID_REQUEST) {
|
|
|
586 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
|
587 "client sent invalid request");
|
|
|
588 ngx_http_finalize_request(r, NGX_HTTP_BAD_REQUEST);
|
|
0
|
589 return;
|
|
|
590 }
|
|
|
591
|
|
|
592 } else {
|
|
10
|
593 r->uri.data = r->uri_start;
|
|
0
|
594 }
|
|
|
595
|
|
18
|
596
|
|
10
|
597 r->unparsed_uri.len = r->uri_end - r->uri_start;
|
|
|
598 r->unparsed_uri.data = r->uri_start;
|
|
|
599
|
|
0
|
600
|
|
58
|
601 r->method_name.len = r->method_end - r->request_start + 1;
|
|
|
602 r->method_name.data = r->request_line.data;
|
|
0
|
603
|
|
10
|
604
|
|
28
|
605 if (r->http_protocol.data) {
|
|
|
606 r->http_protocol.len = r->request_end - r->http_protocol.data;
|
|
|
607 }
|
|
|
608
|
|
|
609
|
|
0
|
610 if (r->uri_ext) {
|
|
|
611 if (r->args_start) {
|
|
|
612 r->exten.len = r->args_start - 1 - r->uri_ext;
|
|
|
613 } else {
|
|
|
614 r->exten.len = r->uri_end - r->uri_ext;
|
|
|
615 }
|
|
|
616
|
|
10
|
617 r->exten.data = r->uri_ext;
|
|
0
|
618 }
|
|
|
619
|
|
10
|
620
|
|
0
|
621 if (r->args_start && r->uri_end > r->args_start) {
|
|
|
622 r->args.len = r->uri_end - r->args_start;
|
|
10
|
623 r->args.data = r->args_start;
|
|
0
|
624 }
|
|
|
625
|
|
10
|
626
|
|
|
627 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
|
628 "http request line: \"%V\"", &r->request_line);
|
|
|
629
|
|
0
|
630 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
10
|
631 "http uri: \"%V\"", &r->uri);
|
|
0
|
632
|
|
|
633 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
10
|
634 "http args: \"%V\"", &r->args);
|
|
0
|
635
|
|
|
636 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
10
|
637 "http exten: \"%V\"", &r->exten);
|
|
|
638
|
|
0
|
639 if (r->http_version < NGX_HTTP_VERSION_10) {
|
|
86
|
640
|
|
|
641 if (rev->timer_set) {
|
|
|
642 ngx_del_timer(rev);
|
|
|
643 }
|
|
|
644
|
|
|
645 #if (NGX_STAT_STUB)
|
|
110
|
646 ngx_atomic_fetch_add(ngx_stat_reading, -1);
|
|
86
|
647 r->stat_reading = 0;
|
|
110
|
648 ngx_atomic_fetch_add(ngx_stat_writing, 1);
|
|
86
|
649 r->stat_writing = 1;
|
|
|
650 #endif
|
|
|
651
|
|
|
652 rev->handler = ngx_http_request_handler;
|
|
|
653 c->write->handler = ngx_http_request_handler;
|
|
58
|
654 r->read_event_handler = ngx_http_block_read;
|
|
86
|
655
|
|
0
|
656 ngx_http_handler(r);
|
|
86
|
657
|
|
0
|
658 return;
|
|
|
659 }
|
|
|
660
|
|
|
661
|
|
|
662 if (ngx_list_init(&r->headers_in.headers, r->pool, 20,
|
|
|
663 sizeof(ngx_table_elt_t)) == NGX_ERROR)
|
|
|
664 {
|
|
|
665 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
666 return;
|
|
|
667 }
|
|
|
668
|
|
|
669
|
|
48
|
670 if (ngx_array_init(&r->headers_in.cookies, r->pool, 2,
|
|
0
|
671 sizeof(ngx_table_elt_t *)) == NGX_ERROR)
|
|
|
672 {
|
|
|
673 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
674 return;
|
|
|
675 }
|
|
|
676
|
|
32
|
677 c->log->action = "reading client request headers";
|
|
0
|
678
|
|
58
|
679 rev->handler = ngx_http_process_request_headers;
|
|
0
|
680 ngx_http_process_request_headers(rev);
|
|
|
681
|
|
|
682 return;
|
|
54
|
683 }
|
|
|
684
|
|
|
685 if (rc != NGX_AGAIN) {
|
|
0
|
686
|
|
|
687 /* there was error while a request line parsing */
|
|
|
688
|
|
54
|
689 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
|
690 ngx_http_client_errors[rc - NGX_HTTP_CLIENT_ERROR]);
|
|
|
691 ngx_http_finalize_request(r, NGX_HTTP_BAD_REQUEST);
|
|
0
|
692 return;
|
|
|
693 }
|
|
|
694
|
|
|
695 /* NGX_AGAIN: a request line parsing is still incomplete */
|
|
|
696
|
|
|
697 if (r->header_in->pos == r->header_in->end) {
|
|
|
698
|
|
|
699 rv = ngx_http_alloc_large_header_buffer(r, 1);
|
|
|
700
|
|
|
701 if (rv == NGX_ERROR) {
|
|
|
702 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
703 return;
|
|
|
704 }
|
|
|
705
|
|
|
706 if (rv == NGX_DECLINED) {
|
|
54
|
707 ctx = c->log->data;
|
|
|
708 ctx->request = r;
|
|
|
709
|
|
|
710 r->request_line.len = r->header_in->end - r->request_start;
|
|
|
711 r->request_line.data = r->request_start;
|
|
|
712
|
|
|
713 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
|
714 "client sent too long URI");
|
|
|
715 ngx_http_finalize_request(r, NGX_HTTP_REQUEST_URI_TOO_LARGE);
|
|
0
|
716 return;
|
|
|
717 }
|
|
|
718 }
|
|
|
719 }
|
|
|
720 }
|
|
|
721
|
|
|
722
|
|
50
|
723 static void
|
|
|
724 ngx_http_process_request_headers(ngx_event_t *rev)
|
|
0
|
725 {
|
|
56
|
726 ssize_t n;
|
|
|
727 ngx_int_t rc, rv;
|
|
|
728 ngx_uint_t key;
|
|
|
729 ngx_str_t header;
|
|
58
|
730 ngx_table_elt_t *h;
|
|
56
|
731 ngx_connection_t *c;
|
|
|
732 ngx_http_header_t *hh;
|
|
|
733 ngx_http_request_t *r;
|
|
60
|
734 ngx_http_core_srv_conf_t *cscf;
|
|
56
|
735 ngx_http_core_main_conf_t *cmcf;
|
|
0
|
736
|
|
|
737 c = rev->data;
|
|
|
738 r = c->data;
|
|
|
739
|
|
|
740 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, rev->log, 0,
|
|
|
741 "http process request header line");
|
|
|
742
|
|
|
743 if (rev->timedout) {
|
|
54
|
744 ngx_log_error(NGX_LOG_INFO, c->log, NGX_ETIMEDOUT, "client timed out");
|
|
|
745 c->timedout = 1;
|
|
|
746 ngx_http_close_request(r, NGX_HTTP_REQUEST_TIME_OUT);
|
|
0
|
747 return;
|
|
|
748 }
|
|
|
749
|
|
56
|
750 cmcf = ngx_http_get_module_main_conf(r, ngx_http_core_module);
|
|
60
|
751 cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
|
|
56
|
752 hh = (ngx_http_header_t *) cmcf->headers_in_hash.buckets;
|
|
|
753
|
|
0
|
754 rc = NGX_AGAIN;
|
|
|
755
|
|
|
756 for ( ;; ) {
|
|
|
757
|
|
|
758 if (rc == NGX_AGAIN) {
|
|
|
759
|
|
|
760 if (r->header_in->pos == r->header_in->end) {
|
|
|
761
|
|
|
762 rv = ngx_http_alloc_large_header_buffer(r, 0);
|
|
|
763
|
|
|
764 if (rv == NGX_ERROR) {
|
|
|
765 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
766 return;
|
|
|
767 }
|
|
|
768
|
|
|
769 if (rv == NGX_DECLINED) {
|
|
54
|
770 header.len = r->header_in->end - r->header_name_start;
|
|
|
771 header.data = r->header_name_start;
|
|
80
|
772
|
|
|
773 if (header.len > NGX_MAX_ERROR_STR - 300) {
|
|
|
774 header.len = NGX_MAX_ERROR_STR - 300;
|
|
|
775 header.data[header.len++] = '.';
|
|
|
776 header.data[header.len++] = '.';
|
|
|
777 header.data[header.len++] = '.';
|
|
|
778 }
|
|
|
779
|
|
54
|
780 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
|
781 "client sent too long header line: \"%V\"",
|
|
|
782 &header);
|
|
|
783 ngx_http_close_request(r, NGX_HTTP_BAD_REQUEST);
|
|
0
|
784 return;
|
|
|
785 }
|
|
|
786 }
|
|
|
787
|
|
|
788 n = ngx_http_read_request_header(r);
|
|
|
789
|
|
|
790 if (n == NGX_AGAIN || n == NGX_ERROR) {
|
|
|
791 return;
|
|
|
792 }
|
|
|
793 }
|
|
|
794
|
|
|
795 rc = ngx_http_parse_header_line(r, r->header_in);
|
|
|
796
|
|
|
797 if (rc == NGX_OK) {
|
|
|
798
|
|
60
|
799 if (r->invalid_header && cscf->ignore_invalid_headers) {
|
|
52
|
800
|
|
|
801 /* there was error while a header line parsing */
|
|
|
802
|
|
|
803 header.len = r->header_end - r->header_name_start;
|
|
|
804 header.data = r->header_name_start;
|
|
|
805
|
|
54
|
806 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
|
807 "client sent invalid header line: \"%V\"",
|
|
52
|
808 &header);
|
|
|
809 continue;
|
|
|
810 }
|
|
|
811
|
|
0
|
812 /* a header line has been parsed successfully */
|
|
|
813
|
|
50
|
814 h = ngx_list_push(&r->headers_in.headers);
|
|
|
815 if (h == NULL) {
|
|
0
|
816 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
817 return;
|
|
|
818 }
|
|
|
819
|
|
56
|
820 h->hash = r->header_hash;
|
|
|
821
|
|
0
|
822 h->key.len = r->header_name_end - r->header_name_start;
|
|
|
823 h->key.data = r->header_name_start;
|
|
|
824 h->key.data[h->key.len] = '\0';
|
|
|
825
|
|
|
826 h->value.len = r->header_end - r->header_start;
|
|
|
827 h->value.data = r->header_start;
|
|
|
828 h->value.data[h->value.len] = '\0';
|
|
|
829
|
|
58
|
830 key = h->hash % cmcf->headers_in_hash.hash_size;
|
|
|
831
|
|
|
832 if (hh[key].name.len == h->key.len
|
|
|
833 && ngx_strcasecmp(hh[key].name.data, h->key.data) == 0)
|
|
0
|
834 {
|
|
58
|
835 if (hh[key].handler(r, h, hh[key].offset) != NGX_OK) {
|
|
0
|
836 return;
|
|
|
837 }
|
|
|
838 }
|
|
|
839
|
|
|
840 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
10
|
841 "http header: \"%V: %V\"",
|
|
|
842 &h->key, &h->value);
|
|
0
|
843
|
|
|
844 continue;
|
|
54
|
845 }
|
|
|
846
|
|
|
847 if (rc == NGX_HTTP_PARSE_HEADER_DONE) {
|
|
0
|
848
|
|
|
849 /* a whole header has been parsed successfully */
|
|
|
850
|
|
|
851 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
852 "http header done");
|
|
|
853
|
|
24
|
854 r->request_length += r->header_in->pos - r->header_in->start;
|
|
|
855
|
|
0
|
856 r->http_state = NGX_HTTP_PROCESS_REQUEST_STATE;
|
|
|
857
|
|
|
858 rc = ngx_http_process_request_header(r);
|
|
|
859
|
|
|
860 if (rc != NGX_OK) {
|
|
|
861 return;
|
|
|
862 }
|
|
|
863
|
|
|
864 if (rev->timer_set) {
|
|
|
865 ngx_del_timer(rev);
|
|
|
866 }
|
|
|
867
|
|
|
868 #if (NGX_STAT_STUB)
|
|
110
|
869 ngx_atomic_fetch_add(ngx_stat_reading, -1);
|
|
0
|
870 r->stat_reading = 0;
|
|
110
|
871 ngx_atomic_fetch_add(ngx_stat_writing, 1);
|
|
0
|
872 r->stat_writing = 1;
|
|
|
873 #endif
|
|
|
874
|
|
58
|
875 rev->handler = ngx_http_request_handler;
|
|
|
876 c->write->handler = ngx_http_request_handler;
|
|
|
877 r->read_event_handler = ngx_http_block_read;
|
|
|
878
|
|
0
|
879 ngx_http_handler(r);
|
|
86
|
880
|
|
0
|
881 return;
|
|
54
|
882 }
|
|
|
883
|
|
|
884 if (rc == NGX_AGAIN) {
|
|
|
885
|
|
|
886 /* a header line parsing is still not complete */
|
|
|
887
|
|
|
888 continue;
|
|
0
|
889 }
|
|
|
890
|
|
54
|
891 /* rc == NGX_HTTP_PARSE_INVALID_HEADER: "\r" is not followed by "\n" */
|
|
|
892
|
|
|
893 header.len = r->header_end - r->header_name_start;
|
|
|
894 header.data = r->header_name_start;
|
|
|
895 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
|
896 "client sent invalid header line: \"%V\\r...\"",
|
|
|
897 &header);
|
|
|
898 ngx_http_close_request(r, NGX_HTTP_BAD_REQUEST);
|
|
|
899 return;
|
|
0
|
900 }
|
|
|
901 }
|
|
|
902
|
|
|
903
|
|
50
|
904 static ssize_t
|
|
|
905 ngx_http_read_request_header(ngx_http_request_t *r)
|
|
0
|
906 {
|
|
|
907 ssize_t n;
|
|
|
908 ngx_event_t *rev;
|
|
|
909 ngx_http_core_srv_conf_t *cscf;
|
|
|
910
|
|
|
911 rev = r->connection->read;
|
|
|
912
|
|
|
913 n = r->header_in->last - r->header_in->pos;
|
|
|
914
|
|
|
915 if (n > 0) {
|
|
|
916 return n;
|
|
|
917 }
|
|
|
918
|
|
72
|
919 if (rev->ready) {
|
|
|
920 n = r->connection->recv(r->connection, r->header_in->last,
|
|
|
921 r->header_in->end - r->header_in->last);
|
|
|
922 } else {
|
|
|
923 n = NGX_AGAIN;
|
|
0
|
924 }
|
|
|
925
|
|
|
926 if (n == NGX_AGAIN) {
|
|
|
927 if (!r->header_timeout_set) {
|
|
|
928 cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
|
|
|
929 ngx_add_timer(rev, cscf->client_header_timeout);
|
|
|
930 r->header_timeout_set = 1;
|
|
|
931 }
|
|
|
932
|
|
|
933 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) {
|
|
|
934 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
935 return NGX_ERROR;
|
|
|
936 }
|
|
|
937
|
|
|
938 return NGX_AGAIN;
|
|
|
939 }
|
|
|
940
|
|
|
941 if (n == 0) {
|
|
|
942 ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
|
|
|
943 "client closed prematurely connection");
|
|
|
944 }
|
|
|
945
|
|
|
946 if (n == 0 || n == NGX_ERROR) {
|
|
|
947 ngx_http_close_request(r, NGX_HTTP_BAD_REQUEST);
|
|
|
948 return NGX_ERROR;
|
|
|
949 }
|
|
|
950
|
|
|
951 r->header_in->last += n;
|
|
|
952
|
|
|
953 return n;
|
|
|
954 }
|
|
|
955
|
|
|
956
|
|
50
|
957 static ngx_int_t
|
|
|
958 ngx_http_alloc_large_header_buffer(ngx_http_request_t *r,
|
|
|
959 ngx_uint_t request_line)
|
|
0
|
960 {
|
|
|
961 u_char *old, *new;
|
|
|
962 ngx_buf_t *b;
|
|
|
963 ngx_http_connection_t *hc;
|
|
|
964 ngx_http_core_srv_conf_t *cscf;
|
|
|
965
|
|
|
966 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
967 "http alloc large header buffer");
|
|
|
968
|
|
|
969 if (request_line && r->state == 0) {
|
|
|
970
|
|
|
971 /* the client fills up the buffer with "\r\n" */
|
|
|
972
|
|
24
|
973 r->request_length += r->header_in->end - r->header_in->start;
|
|
|
974
|
|
0
|
975 r->header_in->pos = r->header_in->start;
|
|
|
976 r->header_in->last = r->header_in->start;
|
|
|
977
|
|
|
978 return NGX_OK;
|
|
|
979 }
|
|
|
980
|
|
|
981 old = request_line ? r->request_start : r->header_name_start;
|
|
|
982
|
|
|
983 cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
|
|
|
984
|
|
|
985 if (r->state != 0
|
|
|
986 && (size_t) (r->header_in->pos - old)
|
|
|
987 >= cscf->large_client_header_buffers.size)
|
|
|
988 {
|
|
|
989 return NGX_DECLINED;
|
|
|
990 }
|
|
|
991
|
|
|
992 hc = r->http_connection;
|
|
|
993
|
|
|
994 if (hc->nfree) {
|
|
|
995 b = hc->free[--hc->nfree];
|
|
|
996
|
|
|
997 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
10
|
998 "http large header free: %p %uz",
|
|
0
|
999 b->pos, b->end - b->last);
|
|
|
1000
|
|
|
1001 } else if (hc->nbusy < cscf->large_client_header_buffers.num) {
|
|
|
1002
|
|
|
1003 if (hc->busy == NULL) {
|
|
|
1004 hc->busy = ngx_palloc(r->connection->pool,
|
|
|
1005 cscf->large_client_header_buffers.num * sizeof(ngx_buf_t *));
|
|
|
1006 if (hc->busy == NULL) {
|
|
|
1007 return NGX_ERROR;
|
|
|
1008 }
|
|
|
1009 }
|
|
|
1010
|
|
|
1011 b = ngx_create_temp_buf(r->connection->pool,
|
|
|
1012 cscf->large_client_header_buffers.size);
|
|
|
1013 if (b == NULL) {
|
|
|
1014 return NGX_ERROR;
|
|
|
1015 }
|
|
|
1016
|
|
|
1017 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
10
|
1018 "http large header alloc: %p %uz",
|
|
0
|
1019 b->pos, b->end - b->last);
|
|
|
1020
|
|
|
1021 } else {
|
|
|
1022 return NGX_DECLINED;
|
|
|
1023 }
|
|
|
1024
|
|
|
1025 hc->busy[hc->nbusy++] = b;
|
|
|
1026
|
|
|
1027 if (r->state == 0) {
|
|
|
1028 /*
|
|
|
1029 * r->state == 0 means that a header line was parsed successfully
|
|
|
1030 * and we do not need to copy incomplete header line and
|
|
|
1031 * to relocate the parser header pointers
|
|
|
1032 */
|
|
|
1033
|
|
24
|
1034 r->request_length += r->header_in->end - r->header_in->start;
|
|
|
1035
|
|
0
|
1036 r->header_in = b;
|
|
|
1037
|
|
|
1038 return NGX_OK;
|
|
|
1039 }
|
|
|
1040
|
|
|
1041 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1042 "http large header copy: %d", r->header_in->pos - old);
|
|
|
1043
|
|
24
|
1044 r->request_length += old - r->header_in->start;
|
|
|
1045
|
|
0
|
1046 new = b->start;
|
|
|
1047
|
|
|
1048 ngx_memcpy(new, old, r->header_in->pos - old);
|
|
|
1049
|
|
|
1050 b->pos = new + (r->header_in->pos - old);
|
|
|
1051 b->last = new + (r->header_in->pos - old);
|
|
|
1052
|
|
|
1053 if (request_line) {
|
|
|
1054 r->request_start = new;
|
|
|
1055
|
|
|
1056 if (r->request_end) {
|
|
|
1057 r->request_end = new + (r->request_end - old);
|
|
|
1058 }
|
|
|
1059
|
|
|
1060 r->method_end = new + (r->method_end - old);
|
|
|
1061
|
|
|
1062 r->uri_start = new + (r->uri_start - old);
|
|
|
1063 r->uri_end = new + (r->uri_end - old);
|
|
|
1064
|
|
|
1065 if (r->schema_start) {
|
|
|
1066 r->schema_start = new + (r->schema_start - old);
|
|
|
1067 r->schema_end = new + (r->schema_end - old);
|
|
|
1068 }
|
|
|
1069
|
|
|
1070 if (r->host_start) {
|
|
|
1071 r->host_start = new + (r->host_start - old);
|
|
|
1072 r->host_end = new + (r->host_end - old);
|
|
|
1073 }
|
|
|
1074
|
|
|
1075 if (r->port_start) {
|
|
|
1076 r->port_start = new + (r->port_start - old);
|
|
|
1077 r->port_end = new + (r->port_end - old);
|
|
|
1078 }
|
|
|
1079
|
|
|
1080 if (r->uri_ext) {
|
|
|
1081 r->uri_ext = new + (r->uri_ext - old);
|
|
|
1082 }
|
|
|
1083
|
|
|
1084 if (r->args_start) {
|
|
|
1085 r->args_start = new + (r->args_start - old);
|
|
|
1086 }
|
|
|
1087
|
|
|
1088 } else {
|
|
|
1089 r->header_name_start = new;
|
|
|
1090 r->header_name_end = new + (r->header_name_end - old);
|
|
|
1091 r->header_start = new + (r->header_start - old);
|
|
|
1092 r->header_end = new + (r->header_end - old);
|
|
|
1093 }
|
|
|
1094
|
|
|
1095 r->header_in = b;
|
|
|
1096
|
|
|
1097 return NGX_OK;
|
|
|
1098 }
|
|
|
1099
|
|
|
1100
|
|
50
|
1101 static ngx_int_t
|
|
58
|
1102 ngx_http_process_header_line(ngx_http_request_t *r, ngx_table_elt_t *h,
|
|
|
1103 ngx_uint_t offset)
|
|
|
1104 {
|
|
|
1105 ngx_table_elt_t **ph;
|
|
|
1106
|
|
|
1107 ph = (ngx_table_elt_t **) ((char *) &r->headers_in + offset);
|
|
|
1108
|
|
|
1109 if (*ph == NULL) {
|
|
|
1110 *ph = h;
|
|
|
1111 }
|
|
|
1112
|
|
|
1113 return NGX_OK;
|
|
|
1114 }
|
|
|
1115
|
|
|
1116
|
|
|
1117 static ngx_int_t
|
|
72
|
1118 ngx_http_process_unique_header_line(ngx_http_request_t *r, ngx_table_elt_t *h,
|
|
|
1119 ngx_uint_t offset)
|
|
|
1120 {
|
|
|
1121 ngx_table_elt_t **ph;
|
|
|
1122
|
|
|
1123 ph = (ngx_table_elt_t **) ((char *) &r->headers_in + offset);
|
|
|
1124
|
|
|
1125 if (*ph == NULL) {
|
|
|
1126 *ph = h;
|
|
|
1127 return NGX_OK;
|
|
|
1128 }
|
|
|
1129
|
|
|
1130 ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
|
|
|
1131 "client sent duplicate header line: \"%V: %V\"",
|
|
|
1132 &h->key, &h->value);
|
|
|
1133
|
|
|
1134 ngx_http_finalize_request(r, NGX_HTTP_BAD_REQUEST);
|
|
|
1135
|
|
|
1136 return NGX_ERROR;
|
|
|
1137 }
|
|
|
1138
|
|
|
1139
|
|
|
1140 static ngx_int_t
|
|
58
|
1141 ngx_http_process_cookie(ngx_http_request_t *r, ngx_table_elt_t *h,
|
|
|
1142 ngx_uint_t offset)
|
|
|
1143 {
|
|
|
1144 ngx_table_elt_t **cookie;
|
|
|
1145
|
|
|
1146 cookie = ngx_array_push(&r->headers_in.cookies);
|
|
72
|
1147 if (cookie) {
|
|
|
1148 *cookie = h;
|
|
|
1149 return NGX_OK;
|
|
58
|
1150 }
|
|
|
1151
|
|
72
|
1152 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
1153
|
|
|
1154 return NGX_ERROR;
|
|
58
|
1155 }
|
|
|
1156
|
|
|
1157
|
|
|
1158 static ngx_int_t
|
|
50
|
1159 ngx_http_process_request_header(ngx_http_request_t *r)
|
|
0
|
1160 {
|
|
54
|
1161 size_t len;
|
|
|
1162 u_char *ua, *user_agent, ch;
|
|
|
1163 ngx_http_core_srv_conf_t *cscf;
|
|
0
|
1164
|
|
|
1165 if (r->headers_in.host) {
|
|
|
1166 for (len = 0; len < r->headers_in.host->value.len; len++) {
|
|
26
|
1167 ch = r->headers_in.host->value.data[len];
|
|
|
1168
|
|
|
1169 if (ch == ':') {
|
|
0
|
1170 break;
|
|
|
1171 }
|
|
26
|
1172
|
|
|
1173 r->headers_in.host->value.data[len] = ngx_tolower(ch);
|
|
0
|
1174 }
|
|
54
|
1175
|
|
58
|
1176 if (r->headers_in.host->value.data[len - 1] == '.') {
|
|
|
1177 len--;
|
|
|
1178 }
|
|
|
1179
|
|
0
|
1180 r->headers_in.host_name_len = len;
|
|
|
1181
|
|
26
|
1182 if (ngx_http_find_virtual_server(r) != NGX_OK) {
|
|
54
|
1183 ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
|
|
|
1184 "client sent invalid \"Host\" header");
|
|
|
1185
|
|
|
1186 cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
|
|
|
1187
|
|
|
1188 if (cscf->restrict_host_names == NGX_HTTP_RESTRICT_HOST_CLOSE) {
|
|
|
1189 ngx_http_close_request(r, NGX_HTTP_BAD_REQUEST);
|
|
|
1190 return NGX_ERROR;
|
|
|
1191 }
|
|
|
1192
|
|
|
1193 ngx_http_finalize_request(r, NGX_HTTP_INVALID_HOST);
|
|
|
1194 return NGX_ERROR;
|
|
0
|
1195 }
|
|
|
1196
|
|
|
1197 } else {
|
|
|
1198 if (r->http_version > NGX_HTTP_VERSION_10) {
|
|
54
|
1199 ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
|
|
|
1200 "client sent HTTP/1.1 request without \"Host\" header");
|
|
|
1201 ngx_http_finalize_request(r, NGX_HTTP_BAD_REQUEST);
|
|
|
1202 return NGX_ERROR;
|
|
0
|
1203 }
|
|
54
|
1204
|
|
0
|
1205 r->headers_in.host_name_len = 0;
|
|
|
1206 }
|
|
|
1207
|
|
|
1208 if (r->headers_in.content_length) {
|
|
|
1209 r->headers_in.content_length_n =
|
|
50
|
1210 ngx_atosz(r->headers_in.content_length->value.data,
|
|
0
|
1211 r->headers_in.content_length->value.len);
|
|
|
1212
|
|
|
1213 if (r->headers_in.content_length_n == NGX_ERROR) {
|
|
54
|
1214 ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
|
|
|
1215 "client sent invalid \"Content-Length\" header");
|
|
|
1216 ngx_http_finalize_request(r, NGX_HTTP_BAD_REQUEST);
|
|
|
1217 return NGX_ERROR;
|
|
0
|
1218 }
|
|
|
1219 }
|
|
|
1220
|
|
32
|
1221 if (r->method == NGX_HTTP_POST && r->headers_in.content_length_n == -1) {
|
|
54
|
1222 ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
|
|
|
1223 "client sent POST method without \"Content-Length\" header");
|
|
|
1224 ngx_http_finalize_request(r, NGX_HTTP_BAD_REQUEST);
|
|
|
1225 return NGX_ERROR;
|
|
0
|
1226 }
|
|
|
1227
|
|
|
1228 if (r->plain_http) {
|
|
54
|
1229 ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
|
|
|
1230 "client sent plain HTTP request to HTTPS port");
|
|
|
1231 ngx_http_finalize_request(r, NGX_HTTP_TO_HTTPS);
|
|
|
1232 return NGX_ERROR;
|
|
0
|
1233 }
|
|
|
1234
|
|
|
1235 if (r->headers_in.connection) {
|
|
|
1236 if (r->headers_in.connection->value.len == 5
|
|
|
1237 && ngx_strcasecmp(r->headers_in.connection->value.data, "close")
|
|
58
|
1238 == 0)
|
|
0
|
1239 {
|
|
|
1240 r->headers_in.connection_type = NGX_HTTP_CONNECTION_CLOSE;
|
|
|
1241
|
|
|
1242 } else if (r->headers_in.connection->value.len == 10
|
|
|
1243 && ngx_strcasecmp(r->headers_in.connection->value.data,
|
|
58
|
1244 "keep-alive") == 0)
|
|
0
|
1245 {
|
|
|
1246 r->headers_in.connection_type = NGX_HTTP_CONNECTION_KEEP_ALIVE;
|
|
|
1247
|
|
|
1248 if (r->headers_in.keep_alive) {
|
|
|
1249 r->headers_in.keep_alive_n =
|
|
50
|
1250 ngx_atotm(r->headers_in.keep_alive->value.data,
|
|
0
|
1251 r->headers_in.keep_alive->value.len);
|
|
|
1252 }
|
|
|
1253 }
|
|
|
1254 }
|
|
|
1255
|
|
|
1256 if (r->headers_in.user_agent) {
|
|
|
1257
|
|
|
1258 /*
|
|
|
1259 * check some widespread browsers while the headers are still
|
|
|
1260 * in CPU cache
|
|
|
1261 */
|
|
|
1262
|
|
|
1263 user_agent = r->headers_in.user_agent->value.data;
|
|
|
1264
|
|
|
1265 ua = (u_char *) ngx_strstr(user_agent, "MSIE");
|
|
|
1266
|
|
|
1267 if (ua && ua + 8 < user_agent + r->headers_in.user_agent->value.len) {
|
|
|
1268
|
|
|
1269 r->headers_in.msie = 1;
|
|
|
1270
|
|
|
1271 if (ua[4] == ' ' && ua[5] == '4' && ua[6] == '.') {
|
|
|
1272 r->headers_in.msie4 = 1;
|
|
|
1273 }
|
|
|
1274
|
|
|
1275 #if 0
|
|
|
1276 /* MSIE ignores the SSL "close notify" alert */
|
|
22
|
1277 if (c->ssl) {
|
|
96
|
1278 c->ssl->no_send_shutdown = 1;
|
|
22
|
1279 }
|
|
0
|
1280 #endif
|
|
|
1281 }
|
|
|
1282
|
|
|
1283 if (ngx_strstr(user_agent, "Opera")) {
|
|
|
1284 r->headers_in.opera = 1;
|
|
|
1285 r->headers_in.msie = 0;
|
|
|
1286 r->headers_in.msie4 = 0;
|
|
|
1287 }
|
|
|
1288
|
|
|
1289 if (!r->headers_in.msie && !r->headers_in.opera) {
|
|
|
1290
|
|
|
1291 if (ngx_strstr(user_agent, "Gecko/")) {
|
|
|
1292 r->headers_in.gecko = 1;
|
|
|
1293
|
|
|
1294 } else if (ngx_strstr(user_agent, "Konqueror")) {
|
|
|
1295 r->headers_in.konqueror = 1;
|
|
|
1296 }
|
|
|
1297 }
|
|
|
1298 }
|
|
|
1299
|
|
|
1300 return NGX_OK;
|
|
|
1301 }
|
|
|
1302
|
|
|
1303
|
|
50
|
1304 static ngx_int_t
|
|
|
1305 ngx_http_find_virtual_server(ngx_http_request_t *r)
|
|
26
|
1306 {
|
|
|
1307 ngx_int_t rc;
|
|
58
|
1308 ngx_uint_t i, n, key;
|
|
26
|
1309 ngx_http_server_name_t *name;
|
|
56
|
1310 ngx_http_core_loc_conf_t *clcf;
|
|
26
|
1311 ngx_http_core_srv_conf_t *cscf;
|
|
56
|
1312 ngx_http_core_main_conf_t *cmcf;
|
|
26
|
1313
|
|
|
1314 if (r->virtual_names->hash) {
|
|
|
1315 cmcf = ngx_http_get_module_main_conf(r, ngx_http_core_module);
|
|
|
1316
|
|
|
1317 ngx_http_server_names_hash_key(key,
|
|
|
1318 r->headers_in.host->value.data,
|
|
|
1319 r->headers_in.host_name_len,
|
|
|
1320 cmcf->server_names_hash);
|
|
|
1321
|
|
|
1322 name = r->virtual_names->hash[key].elts;
|
|
|
1323 n = r->virtual_names->hash[key].nelts;
|
|
|
1324
|
|
|
1325 } else {
|
|
|
1326 name = r->virtual_names->names.elts;
|
|
|
1327 n = r->virtual_names->names.nelts;
|
|
|
1328 }
|
|
|
1329
|
|
|
1330 for (i = 0; i < n; i++) {
|
|
|
1331
|
|
|
1332 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1333 "server name: %V", &name[i].name);
|
|
|
1334
|
|
|
1335 if (r->headers_in.host_name_len != name[i].name.len) {
|
|
|
1336 continue;
|
|
|
1337 }
|
|
|
1338
|
|
|
1339 rc = ngx_strncmp(r->headers_in.host->value.data,
|
|
|
1340 name[i].name.data, name[i].name.len);
|
|
|
1341
|
|
|
1342 if (rc == 0) {
|
|
|
1343 r->server_name = name[i].name;
|
|
58
|
1344 goto found;
|
|
26
|
1345 }
|
|
|
1346
|
|
|
1347 if (rc < 0) {
|
|
126
|
1348 /* the server names are lexicographically sorted */
|
|
26
|
1349 break;
|
|
|
1350 }
|
|
|
1351 }
|
|
|
1352
|
|
58
|
1353 if (r->virtual_names->wildcards.nelts) {
|
|
26
|
1354
|
|
|
1355 name = r->virtual_names->wildcards.elts;
|
|
|
1356 for (i = 0; i < r->virtual_names->wildcards.nelts; i++) {
|
|
|
1357
|
|
|
1358 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1359 "server name: %V", &name[i].name);
|
|
|
1360
|
|
|
1361 if (r->headers_in.host_name_len <= name[i].name.len) {
|
|
|
1362 continue;
|
|
|
1363 }
|
|
|
1364
|
|
|
1365 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1366 "server name: %s",
|
|
|
1367 r->headers_in.host->value.data
|
|
|
1368 + (r->headers_in.host_name_len - name[i].name.len));
|
|
|
1369
|
|
|
1370 if (ngx_strncmp(r->headers_in.host->value.data
|
|
|
1371 + (r->headers_in.host_name_len - name[i].name.len),
|
|
|
1372 name[i].name.data, name[i].name.len) == 0)
|
|
|
1373 {
|
|
|
1374 r->server_name.len = r->headers_in.host_name_len;
|
|
|
1375 r->server_name.data = r->headers_in.host->value.data;
|
|
|
1376
|
|
58
|
1377 goto found;
|
|
26
|
1378 }
|
|
|
1379 }
|
|
|
1380 }
|
|
|
1381
|
|
58
|
1382 cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
|
|
|
1383
|
|
|
1384 if (cscf->restrict_host_names == NGX_HTTP_RESTRICT_HOST_OFF) {
|
|
26
|
1385 return NGX_OK;
|
|
|
1386 }
|
|
|
1387
|
|
58
|
1388 return NGX_ERROR;
|
|
|
1389
|
|
|
1390 found:
|
|
|
1391
|
|
|
1392 r->srv_conf = name[i].core_srv_conf->ctx->srv_conf;
|
|
|
1393 r->loc_conf = name[i].core_srv_conf->ctx->loc_conf;
|
|
|
1394
|
|
|
1395 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
1396 r->connection->log->file = clcf->err_log->file;
|
|
|
1397
|
|
|
1398 if (!(r->connection->log->log_level & NGX_LOG_DEBUG_CONNECTION)) {
|
|
|
1399 r->connection->log->log_level = clcf->err_log->log_level;
|
|
26
|
1400 }
|
|
|
1401
|
|
|
1402 return NGX_OK;
|
|
|
1403 }
|
|
|
1404
|
|
|
1405
|
|
58
|
1406 static void
|
|
|
1407 ngx_http_request_handler(ngx_event_t *ev)
|
|
|
1408 {
|
|
|
1409 ngx_connection_t *c;
|
|
|
1410 ngx_http_request_t *r;
|
|
|
1411
|
|
|
1412 c = ev->data;
|
|
|
1413 r = c->data;
|
|
|
1414
|
|
|
1415 if (ev->write) {
|
|
|
1416 r->write_event_handler(r);
|
|
|
1417
|
|
|
1418 } else {
|
|
|
1419 r->read_event_handler(r);
|
|
|
1420 }
|
|
|
1421 }
|
|
|
1422
|
|
|
1423
|
|
50
|
1424 void
|
|
58
|
1425 ngx_http_finalize_request(ngx_http_request_t *r, ngx_int_t rc)
|
|
0
|
1426 {
|
|
58
|
1427 ngx_http_request_t *pr;
|
|
0
|
1428 ngx_http_core_loc_conf_t *clcf;
|
|
|
1429
|
|
58
|
1430 if (rc == NGX_DONE) {
|
|
118
|
1431 /* the request pool may be already destroyed */
|
|
58
|
1432 return;
|
|
|
1433 }
|
|
|
1434
|
|
|
1435 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1436 "http finalize request: %d, \"%V\"", rc, &r->uri);
|
|
|
1437
|
|
118
|
1438 if (rc == NGX_ERROR || r->connection->closed) {
|
|
|
1439 ngx_http_close_request(r, 0);
|
|
0
|
1440 return;
|
|
|
1441 }
|
|
|
1442
|
|
118
|
1443 if (rc >= NGX_HTTP_SPECIAL_RESPONSE || rc == NGX_HTTP_NO_CONTENT) {
|
|
|
1444
|
|
|
1445 if (r->main == r) {
|
|
|
1446 if (r->connection->read->timer_set) {
|
|
|
1447 ngx_del_timer(r->connection->read);
|
|
|
1448 }
|
|
|
1449
|
|
|
1450 if (r->connection->write->timer_set) {
|
|
|
1451 ngx_del_timer(r->connection->write);
|
|
|
1452 }
|
|
|
1453 }
|
|
|
1454
|
|
|
1455 ngx_http_finalize_request(r, ngx_http_special_response_handler(r, rc));
|
|
|
1456
|
|
|
1457 return;
|
|
|
1458 }
|
|
|
1459
|
|
|
1460 if (r->main != r || rc == NGX_AGAIN) {
|
|
74
|
1461 if (ngx_http_set_write_handler(r) != NGX_OK) {
|
|
|
1462 return;
|
|
|
1463 }
|
|
58
|
1464 }
|
|
|
1465
|
|
|
1466 r->done = 1;
|
|
|
1467
|
|
|
1468 if (r != r->connection->data) {
|
|
76
|
1469 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1470 "http finalize non-active request: \"%V\"", &r->uri);
|
|
58
|
1471 return;
|
|
|
1472 }
|
|
|
1473
|
|
118
|
1474 if (r->main != r) {
|
|
58
|
1475
|
|
|
1476 pr = r->parent;
|
|
|
1477
|
|
76
|
1478 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1479 "http parent request: \"%V\"", &pr->uri);
|
|
|
1480
|
|
58
|
1481 if (rc != NGX_AGAIN) {
|
|
|
1482 pr->connection->data = pr;
|
|
|
1483 }
|
|
|
1484
|
|
|
1485 if (pr->postponed) {
|
|
|
1486
|
|
76
|
1487 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1488 "http request: \"%V\" has postponed", &pr->uri);
|
|
|
1489
|
|
58
|
1490 if (rc != NGX_AGAIN && pr->postponed->request == r) {
|
|
|
1491 pr->postponed = pr->postponed->next;
|
|
|
1492
|
|
|
1493 if (pr->postponed == NULL) {
|
|
|
1494 return;
|
|
|
1495 }
|
|
|
1496 }
|
|
|
1497
|
|
76
|
1498 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1499 "http request: \"%V\" still has postponed",
|
|
|
1500 &pr->uri);
|
|
|
1501
|
|
58
|
1502 if (pr->done) {
|
|
|
1503 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
76
|
1504 "http wake parent request: \"%V\"", &pr->uri);
|
|
58
|
1505
|
|
|
1506 pr->write_event_handler(pr);
|
|
|
1507 }
|
|
|
1508 }
|
|
|
1509
|
|
|
1510 return;
|
|
|
1511 }
|
|
0
|
1512
|
|
118
|
1513 if (rc == NGX_AGAIN) {
|
|
0
|
1514 return;
|
|
76
|
1515 }
|
|
|
1516
|
|
118
|
1517 if (r->out) {
|
|
74
|
1518 (void) ngx_http_set_write_handler(r);
|
|
0
|
1519 return;
|
|
|
1520 }
|
|
|
1521
|
|
126
|
1522 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
1523
|
|
|
1524 if (clcf->post_action.data) {
|
|
|
1525 ngx_http_internal_redirect(r, &clcf->post_action, NULL);
|
|
|
1526 return;
|
|
|
1527 }
|
|
|
1528
|
|
0
|
1529 if (r->connection->read->timer_set) {
|
|
|
1530 ngx_del_timer(r->connection->read);
|
|
|
1531 }
|
|
|
1532
|
|
|
1533 if (r->connection->write->timer_set) {
|
|
|
1534 r->connection->write->delayed = 0;
|
|
|
1535 ngx_del_timer(r->connection->write);
|
|
|
1536 }
|
|
|
1537
|
|
|
1538 if (r->connection->read->pending_eof) {
|
|
22
|
1539 #if (NGX_HAVE_KQUEUE)
|
|
0
|
1540 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log,
|
|
|
1541 r->connection->read->kq_errno,
|
|
|
1542 "kevent() reported about an closed connection");
|
|
|
1543 #endif
|
|
|
1544 ngx_http_close_request(r, 0);
|
|
|
1545 return;
|
|
|
1546 }
|
|
|
1547
|
|
|
1548 if (!ngx_terminate
|
|
|
1549 && !ngx_exiting
|
|
|
1550 && r->keepalive != 0
|
|
|
1551 && clcf->keepalive_timeout > 0)
|
|
|
1552 {
|
|
|
1553 ngx_http_set_keepalive(r);
|
|
|
1554 return;
|
|
|
1555
|
|
|
1556 } else if (r->lingering_close && clcf->lingering_timeout > 0) {
|
|
|
1557 ngx_http_set_lingering_close(r);
|
|
|
1558 return;
|
|
|
1559 }
|
|
|
1560
|
|
|
1561 ngx_http_close_request(r, 0);
|
|
|
1562 }
|
|
|
1563
|
|
|
1564
|
|
74
|
1565 static ngx_int_t
|
|
50
|
1566 ngx_http_set_write_handler(ngx_http_request_t *r)
|
|
0
|
1567 {
|
|
|
1568 ngx_event_t *wev;
|
|
|
1569 ngx_http_core_loc_conf_t *clcf;
|
|
|
1570
|
|
58
|
1571 r->http_state = NGX_HTTP_WRITING_REQUEST_STATE;
|
|
|
1572
|
|
74
|
1573 r->write_event_handler = ngx_http_writer;
|
|
|
1574
|
|
0
|
1575 wev = r->connection->write;
|
|
|
1576
|
|
|
1577 if (wev->ready && wev->delayed) {
|
|
74
|
1578 return NGX_OK;
|
|
0
|
1579 }
|
|
|
1580
|
|
58
|
1581 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
0
|
1582 if (!wev->delayed) {
|
|
|
1583 ngx_add_timer(wev, clcf->send_timeout);
|
|
|
1584 }
|
|
|
1585
|
|
2
|
1586 if (ngx_handle_write_event(wev, clcf->send_lowat) == NGX_ERROR) {
|
|
0
|
1587 ngx_http_close_request(r, 0);
|
|
74
|
1588 return NGX_ERROR;
|
|
0
|
1589 }
|
|
74
|
1590
|
|
|
1591 return NGX_OK;
|
|
0
|
1592 }
|
|
|
1593
|
|
|
1594
|
|
58
|
1595 static void
|
|
|
1596 ngx_http_writer(ngx_http_request_t *r)
|
|
0
|
1597 {
|
|
|
1598 int rc;
|
|
58
|
1599 ngx_event_t *wev;
|
|
0
|
1600 ngx_connection_t *c;
|
|
|
1601 ngx_http_core_loc_conf_t *clcf;
|
|
|
1602
|
|
58
|
1603 c = r->connection;
|
|
|
1604 wev = c->write;
|
|
|
1605
|
|
|
1606 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, wev->log, 0,
|
|
|
1607 "http writer handler: \"%V\"", &r->uri);
|
|
0
|
1608
|
|
|
1609 if (wev->timedout) {
|
|
|
1610 if (!wev->delayed) {
|
|
54
|
1611 ngx_log_error(NGX_LOG_INFO, c->log, NGX_ETIMEDOUT,
|
|
|
1612 "client timed out");
|
|
|
1613 c->timedout = 1;
|
|
116
|
1614
|
|
118
|
1615 ngx_http_close_request(r, NGX_HTTP_REQUEST_TIME_OUT);
|
|
0
|
1616 return;
|
|
|
1617 }
|
|
|
1618
|
|
|
1619 wev->timedout = 0;
|
|
|
1620 wev->delayed = 0;
|
|
|
1621
|
|
|
1622 if (!wev->ready) {
|
|
102
|
1623 clcf = ngx_http_get_module_loc_conf(r->main, ngx_http_core_module);
|
|
0
|
1624 ngx_add_timer(wev, clcf->send_timeout);
|
|
|
1625
|
|
2
|
1626 if (ngx_handle_write_event(wev, clcf->send_lowat) == NGX_ERROR) {
|
|
118
|
1627 ngx_http_close_request(r, 0);
|
|
0
|
1628 }
|
|
|
1629
|
|
|
1630 return;
|
|
|
1631 }
|
|
|
1632
|
|
|
1633 } else {
|
|
|
1634 if (wev->delayed) {
|
|
|
1635 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, wev->log, 0,
|
|
|
1636 "http writer delayed");
|
|
|
1637
|
|
102
|
1638 clcf = ngx_http_get_module_loc_conf(r->main, ngx_http_core_module);
|
|
2
|
1639
|
|
|
1640 if (ngx_handle_write_event(wev, clcf->send_lowat) == NGX_ERROR) {
|
|
118
|
1641 ngx_http_close_request(r, 0);
|
|
0
|
1642 }
|
|
|
1643
|
|
|
1644 return;
|
|
|
1645 }
|
|
|
1646 }
|
|
|
1647
|
|
58
|
1648 if (r->postponed) {
|
|
|
1649 rc = ngx_http_postponed_handler(r);
|
|
|
1650
|
|
|
1651 if (rc == NGX_DONE) {
|
|
118
|
1652 /* the request pool may be already destroyed */
|
|
58
|
1653 return;
|
|
|
1654 }
|
|
|
1655
|
|
|
1656 } else {
|
|
|
1657 rc = ngx_http_output_filter(r, NULL);
|
|
|
1658
|
|
|
1659 }
|
|
|
1660
|
|
|
1661 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
|
1662 "http writer output filter: %d, \"%V\"", rc, &r->uri);
|
|
0
|
1663
|
|
|
1664 if (rc == NGX_AGAIN) {
|
|
102
|
1665 clcf = ngx_http_get_module_loc_conf(r->main, ngx_http_core_module);
|
|
0
|
1666 if (!wev->ready && !wev->delayed) {
|
|
|
1667 ngx_add_timer(wev, clcf->send_timeout);
|
|
|
1668 }
|
|
|
1669
|
|
2
|
1670 if (ngx_handle_write_event(wev, clcf->send_lowat) == NGX_ERROR) {
|
|
118
|
1671 ngx_http_close_request(r, 0);
|
|
0
|
1672 }
|
|
|
1673
|
|
|
1674 return;
|
|
|
1675 }
|
|
|
1676
|
|
58
|
1677 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, wev->log, 0,
|
|
|
1678 "http writer done: \"%V\"", &r->uri);
|
|
0
|
1679
|
|
|
1680 ngx_http_finalize_request(r, rc);
|
|
|
1681 }
|
|
|
1682
|
|
|
1683
|
|
58
|
1684 static ngx_int_t
|
|
|
1685 ngx_http_postponed_handler(ngx_http_request_t *r)
|
|
|
1686 {
|
|
|
1687 ngx_int_t rc;
|
|
|
1688 ngx_http_postponed_request_t *pr;
|
|
|
1689
|
|
|
1690 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1691 "http postpone handler \"%V\"", &r->uri);
|
|
|
1692
|
|
|
1693 pr = r->postponed;
|
|
|
1694
|
|
|
1695 if (pr->request == NULL) {
|
|
|
1696 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1697 "http postponed data \"%V\" %p", &r->uri, pr->out);
|
|
|
1698
|
|
|
1699 rc = ngx_http_output_filter(r, NULL);
|
|
|
1700
|
|
118
|
1701 if (rc == NGX_DONE) {
|
|
|
1702 /* the request pool is already destroyed */
|
|
|
1703 return NGX_DONE;
|
|
|
1704 }
|
|
|
1705
|
|
58
|
1706 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
76
|
1707 "http postponed output filter: %d", rc);
|
|
58
|
1708
|
|
118
|
1709 if (rc == NGX_ERROR) {
|
|
|
1710 ngx_http_close_request(r, 0);
|
|
|
1711 return NGX_DONE;
|
|
|
1712 }
|
|
58
|
1713
|
|
|
1714 pr = r->postponed;
|
|
|
1715
|
|
|
1716 if (pr == NULL) {
|
|
92
|
1717
|
|
|
1718 if (rc == NGX_AGAIN) {
|
|
|
1719 return NGX_AGAIN;
|
|
|
1720 }
|
|
|
1721
|
|
58
|
1722 return NGX_OK;
|
|
|
1723 }
|
|
|
1724 }
|
|
|
1725
|
|
|
1726 r = pr->request;
|
|
|
1727 r->connection->data = r;
|
|
|
1728
|
|
|
1729 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
76
|
1730 "http wake child request \"%V\"", &r->uri);
|
|
58
|
1731
|
|
|
1732 r->write_event_handler(r);
|
|
|
1733
|
|
|
1734 return NGX_DONE;
|
|
|
1735 }
|
|
|
1736
|
|
|
1737
|
|
50
|
1738 static void
|
|
58
|
1739 ngx_http_block_read(ngx_http_request_t *r)
|
|
0
|
1740 {
|
|
58
|
1741 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1742 "http read blocked");
|
|
0
|
1743
|
|
|
1744 /* aio does not call this handler */
|
|
|
1745
|
|
58
|
1746 if ((ngx_event_flags & NGX_USE_LEVEL_EVENT)
|
|
|
1747 && r->connection->read->active)
|
|
|
1748 {
|
|
|
1749 if (ngx_del_event(r->connection->read, NGX_READ_EVENT, 0)
|
|
|
1750 == NGX_ERROR)
|
|
|
1751 {
|
|
0
|
1752 ngx_http_close_request(r, 0);
|
|
|
1753 }
|
|
|
1754 }
|
|
|
1755 }
|
|
|
1756
|
|
|
1757
|
|
50
|
1758 ngx_int_t
|
|
|
1759 ngx_http_discard_body(ngx_http_request_t *r)
|
|
0
|
1760 {
|
|
|
1761 ssize_t size;
|
|
|
1762 ngx_event_t *rev;
|
|
|
1763
|
|
102
|
1764 if (r->main != r) {
|
|
70
|
1765 return NGX_OK;
|
|
|
1766 }
|
|
|
1767
|
|
0
|
1768 rev = r->connection->read;
|
|
|
1769
|
|
|
1770 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, rev->log, 0, "http set discard body");
|
|
|
1771
|
|
|
1772 if (rev->timer_set) {
|
|
|
1773 ngx_del_timer(rev);
|
|
|
1774 }
|
|
|
1775
|
|
|
1776 if (r->headers_in.content_length_n <= 0) {
|
|
|
1777 return NGX_OK;
|
|
|
1778 }
|
|
|
1779
|
|
86
|
1780 r->discard_body = 1;
|
|
|
1781
|
|
0
|
1782 size = r->header_in->last - r->header_in->pos;
|
|
|
1783
|
|
|
1784 if (size) {
|
|
|
1785 if (r->headers_in.content_length_n > size) {
|
|
|
1786 r->headers_in.content_length_n -= size;
|
|
|
1787
|
|
|
1788 } else {
|
|
|
1789 r->header_in->pos += r->headers_in.content_length_n;
|
|
|
1790 r->headers_in.content_length_n = 0;
|
|
|
1791 return NGX_OK;
|
|
|
1792 }
|
|
|
1793 }
|
|
|
1794
|
|
58
|
1795 r->read_event_handler = ngx_http_read_discarded_body_handler;
|
|
|
1796
|
|
|
1797 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) {
|
|
0
|
1798 return NGX_HTTP_INTERNAL_SERVER_ERROR;
|
|
|
1799 }
|
|
|
1800
|
|
|
1801 return ngx_http_read_discarded_body(r);
|
|
|
1802 }
|
|
|
1803
|
|
|
1804
|
|
50
|
1805 static void
|
|
58
|
1806 ngx_http_read_discarded_body_handler(ngx_http_request_t *r)
|
|
0
|
1807 {
|
|
58
|
1808 ngx_int_t rc;
|
|
0
|
1809
|
|
|
1810 rc = ngx_http_read_discarded_body(r);
|
|
|
1811
|
|
|
1812 if (rc == NGX_AGAIN) {
|
|
58
|
1813 if (ngx_handle_read_event(r->connection->read, 0) == NGX_ERROR) {
|
|
0
|
1814 ngx_http_close_request(r, rc);
|
|
|
1815 return;
|
|
|
1816 }
|
|
|
1817 }
|
|
|
1818
|
|
|
1819 if (rc != NGX_OK) {
|
|
|
1820 ngx_http_close_request(r, rc);
|
|
|
1821 }
|
|
|
1822 }
|
|
|
1823
|
|
|
1824
|
|
50
|
1825 static ngx_int_t
|
|
|
1826 ngx_http_read_discarded_body(ngx_http_request_t *r)
|
|
0
|
1827 {
|
|
|
1828 ssize_t size, n;
|
|
|
1829 u_char buffer[NGX_HTTP_DISCARD_BUFFER_SIZE];
|
|
|
1830
|
|
|
1831 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1832 "http read discarded body");
|
|
|
1833
|
|
|
1834 if (r->headers_in.content_length_n == 0) {
|
|
|
1835 return NGX_OK;
|
|
|
1836 }
|
|
|
1837
|
|
|
1838
|
|
|
1839 size = r->headers_in.content_length_n;
|
|
|
1840
|
|
|
1841 if (size > NGX_HTTP_DISCARD_BUFFER_SIZE) {
|
|
|
1842 size = NGX_HTTP_DISCARD_BUFFER_SIZE;
|
|
|
1843 }
|
|
|
1844
|
|
|
1845 n = r->connection->recv(r->connection, buffer, size);
|
|
|
1846
|
|
|
1847 if (n == NGX_ERROR) {
|
|
|
1848
|
|
76
|
1849 r->connection->closed = 1;
|
|
0
|
1850
|
|
|
1851 /*
|
|
|
1852 * if a client request body is discarded then we already set
|
|
|
1853 * some HTTP response code for client and we can ignore the error
|
|
|
1854 */
|
|
|
1855
|
|
|
1856 return NGX_OK;
|
|
|
1857 }
|
|
|
1858
|
|
|
1859 if (n == NGX_AGAIN) {
|
|
|
1860 return NGX_AGAIN;
|
|
|
1861 }
|
|
|
1862
|
|
|
1863 r->headers_in.content_length_n -= n;
|
|
|
1864
|
|
|
1865 return NGX_OK;
|
|
|
1866 }
|
|
|
1867
|
|
|
1868
|
|
50
|
1869 static void
|
|
|
1870 ngx_http_set_keepalive(ngx_http_request_t *r)
|
|
0
|
1871 {
|
|
2
|
1872 int tcp_nodelay;
|
|
0
|
1873 ngx_int_t i;
|
|
|
1874 ngx_buf_t *b, *f;
|
|
|
1875 ngx_event_t *rev, *wev;
|
|
|
1876 ngx_connection_t *c;
|
|
|
1877 ngx_http_connection_t *hc;
|
|
|
1878 ngx_http_core_srv_conf_t *cscf;
|
|
|
1879 ngx_http_core_loc_conf_t *clcf;
|
|
|
1880
|
|
|
1881 c = r->connection;
|
|
|
1882 rev = c->read;
|
|
|
1883
|
|
|
1884 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "set http keepalive handler");
|
|
|
1885
|
|
32
|
1886 c->log->action = "closing request";
|
|
0
|
1887
|
|
|
1888 hc = r->http_connection;
|
|
|
1889 b = r->header_in;
|
|
|
1890
|
|
|
1891 if (b->pos < b->last) {
|
|
|
1892
|
|
|
1893 /* the pipelined request */
|
|
|
1894
|
|
|
1895 if (b != c->buffer) {
|
|
|
1896
|
|
4
|
1897 /*
|
|
|
1898 * If the large header buffers were allocated while the previous
|
|
|
1899 * request processing then we do not use c->buffer for
|
|
|
1900 * the pipelined request (see ngx_http_init_request()).
|
|
126
|
1901 *
|
|
4
|
1902 * Now we would move the large header buffers to the free list.
|
|
|
1903 */
|
|
0
|
1904
|
|
|
1905 cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
|
|
|
1906
|
|
|
1907 if (hc->free == NULL) {
|
|
|
1908 hc->free = ngx_palloc(c->pool,
|
|
|
1909 cscf->large_client_header_buffers.num * sizeof(ngx_buf_t *));
|
|
|
1910
|
|
|
1911 if (hc->free == NULL) {
|
|
26
|
1912 ngx_http_close_request(r, 0);
|
|
0
|
1913 return;
|
|
|
1914 }
|
|
|
1915 }
|
|
|
1916
|
|
|
1917 for (i = 0; i < hc->nbusy - 1; i++) {
|
|
|
1918 f = hc->busy[i];
|
|
|
1919 hc->free[hc->nfree++] = f;
|
|
|
1920 f->pos = f->start;
|
|
|
1921 f->last = f->start;
|
|
|
1922 }
|
|
|
1923
|
|
|
1924 hc->busy[0] = b;
|
|
|
1925 hc->nbusy = 1;
|
|
|
1926 }
|
|
|
1927 }
|
|
|
1928
|
|
26
|
1929 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
1930
|
|
118
|
1931 ngx_http_request_done(r, 0);
|
|
|
1932
|
|
0
|
1933 c->data = hc;
|
|
|
1934
|
|
|
1935 ngx_add_timer(rev, clcf->keepalive_timeout);
|
|
|
1936
|
|
58
|
1937 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) {
|
|
0
|
1938 ngx_http_close_connection(c);
|
|
|
1939 return;
|
|
|
1940 }
|
|
|
1941
|
|
|
1942 wev = c->write;
|
|
58
|
1943 wev->handler = ngx_http_empty_handler;
|
|
0
|
1944
|
|
|
1945 if (b->pos < b->last) {
|
|
|
1946
|
|
|
1947 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "pipelined request");
|
|
|
1948
|
|
116
|
1949 #if (NGX_STAT_STUB)
|
|
|
1950 ngx_atomic_fetch_add(ngx_stat_reading, 1);
|
|
|
1951 #endif
|
|
|
1952
|
|
0
|
1953 hc->pipeline = 1;
|
|
32
|
1954 c->log->action = "reading client pipelined request line";
|
|
116
|
1955
|
|
0
|
1956 ngx_http_init_request(rev);
|
|
|
1957 return;
|
|
|
1958 }
|
|
|
1959
|
|
|
1960 hc->pipeline = 0;
|
|
|
1961
|
|
4
|
1962 /*
|
|
|
1963 * To keep a memory footprint as small as possible for an idle
|
|
|
1964 * keepalive connection we try to free the ngx_http_request_t and
|
|
|
1965 * c->buffer's memory if they were allocated outside the c->pool.
|
|
|
1966 * The large header buffers are always allocated outside the c->pool and
|
|
|
1967 * are freed too.
|
|
|
1968 */
|
|
|
1969
|
|
0
|
1970 if (ngx_pfree(c->pool, r) == NGX_OK) {
|
|
|
1971 hc->request = NULL;
|
|
|
1972 }
|
|
|
1973
|
|
|
1974 b = c->buffer;
|
|
|
1975
|
|
|
1976 if (ngx_pfree(c->pool, b->start) == NGX_OK) {
|
|
4
|
1977
|
|
|
1978 /*
|
|
|
1979 * the special note for ngx_http_keepalive_handler() that
|
|
|
1980 * c->buffer's memory was freed
|
|
|
1981 */
|
|
|
1982
|
|
0
|
1983 b->pos = NULL;
|
|
|
1984
|
|
|
1985 } else {
|
|
|
1986 b->pos = b->start;
|
|
|
1987 b->last = b->start;
|
|
|
1988 }
|
|
|
1989
|
|
10
|
1990 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, c->log, 0, "hc free: %p %d",
|
|
0
|
1991 hc->free, hc->nfree);
|
|
|
1992
|
|
|
1993 if (hc->free) {
|
|
|
1994 for (i = 0; i < hc->nfree; i++) {
|
|
|
1995 ngx_pfree(c->pool, hc->free[i]);
|
|
|
1996 hc->free[i] = NULL;
|
|
|
1997 }
|
|
|
1998
|
|
|
1999 hc->nfree = 0;
|
|
|
2000 }
|
|
|
2001
|
|
10
|
2002 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, c->log, 0, "hc busy: %p %d",
|
|
0
|
2003 hc->busy, hc->nbusy);
|
|
|
2004
|
|
|
2005 if (hc->busy) {
|
|
|
2006 for (i = 0; i < hc->nbusy; i++) {
|
|
|
2007 ngx_pfree(c->pool, hc->busy[i]);
|
|
|
2008 hc->busy[i] = NULL;
|
|
|
2009 }
|
|
|
2010
|
|
|
2011 hc->nbusy = 0;
|
|
|
2012 }
|
|
|
2013
|
|
58
|
2014 rev->handler = ngx_http_keepalive_handler;
|
|
0
|
2015
|
|
|
2016 if (wev->active) {
|
|
4
|
2017 if (ngx_event_flags & NGX_USE_KQUEUE_EVENT) {
|
|
0
|
2018 if (ngx_del_event(wev, NGX_WRITE_EVENT, NGX_DISABLE_EVENT)
|
|
|
2019 == NGX_ERROR)
|
|
|
2020 {
|
|
|
2021 ngx_http_close_connection(c);
|
|
|
2022 return;
|
|
|
2023 }
|
|
|
2024
|
|
|
2025 } else if (ngx_event_flags & NGX_USE_LEVEL_EVENT) {
|
|
|
2026 if (ngx_del_event(wev, NGX_WRITE_EVENT, 0) == NGX_ERROR) {
|
|
|
2027 ngx_http_close_connection(c);
|
|
|
2028 return;
|
|
|
2029 }
|
|
|
2030 }
|
|
|
2031 }
|
|
|
2032
|
|
32
|
2033 c->log->action = "keepalive";
|
|
0
|
2034
|
|
|
2035 if (c->tcp_nopush == NGX_TCP_NOPUSH_SET) {
|
|
50
|
2036 if (ngx_tcp_push(c->fd) == -1) {
|
|
0
|
2037 ngx_connection_error(c, ngx_socket_errno, ngx_tcp_push_n " failed");
|
|
|
2038 ngx_http_close_connection(c);
|
|
|
2039 return;
|
|
|
2040 }
|
|
2
|
2041
|
|
0
|
2042 c->tcp_nopush = NGX_TCP_NOPUSH_UNSET;
|
|
22
|
2043 tcp_nodelay = ngx_tcp_nodelay_and_tcp_nopush ? 1 : 0;
|
|
2
|
2044
|
|
|
2045 } else {
|
|
22
|
2046 tcp_nodelay = 1;
|
|
|
2047 }
|
|
|
2048
|
|
32
|
2049 if (tcp_nodelay
|
|
|
2050 && clcf->tcp_nodelay
|
|
|
2051 && c->tcp_nodelay == NGX_TCP_NODELAY_UNSET)
|
|
|
2052 {
|
|
22
|
2053 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "tcp_nodelay");
|
|
|
2054
|
|
|
2055 if (setsockopt(c->fd, IPPROTO_TCP, TCP_NODELAY,
|
|
|
2056 (const void *) &tcp_nodelay, sizeof(int)) == -1)
|
|
|
2057 {
|
|
|
2058 ngx_connection_error(c, ngx_socket_errno,
|
|
|
2059 "setsockopt(TCP_NODELAY) failed");
|
|
|
2060 ngx_http_close_connection(c);
|
|
|
2061 return;
|
|
2
|
2062 }
|
|
22
|
2063
|
|
32
|
2064 c->tcp_nodelay = NGX_TCP_NODELAY_SET;
|
|
0
|
2065 }
|
|
|
2066
|
|
|
2067 #if 0
|
|
4
|
2068 /* if ngx_http_request_t was freed then we need some other place */
|
|
0
|
2069 r->http_state = NGX_HTTP_KEEPALIVE_STATE;
|
|
|
2070 #endif
|
|
|
2071
|
|
|
2072 if (rev->ready) {
|
|
|
2073 ngx_http_keepalive_handler(rev);
|
|
|
2074 }
|
|
|
2075 }
|
|
|
2076
|
|
|
2077
|
|
50
|
2078 static void
|
|
|
2079 ngx_http_keepalive_handler(ngx_event_t *rev)
|
|
0
|
2080 {
|
|
50
|
2081 size_t size;
|
|
|
2082 ssize_t n;
|
|
|
2083 ngx_buf_t *b;
|
|
|
2084 ngx_connection_t *c;
|
|
0
|
2085
|
|
|
2086 c = rev->data;
|
|
|
2087
|
|
|
2088 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "http keepalive handler");
|
|
|
2089
|
|
|
2090 if (rev->timedout) {
|
|
|
2091 ngx_http_close_connection(c);
|
|
|
2092 return;
|
|
|
2093 }
|
|
|
2094
|
|
18
|
2095 #if (NGX_HAVE_KQUEUE)
|
|
0
|
2096
|
|
4
|
2097 if (ngx_event_flags & NGX_USE_KQUEUE_EVENT) {
|
|
0
|
2098 if (rev->pending_eof) {
|
|
32
|
2099 c->log->handler = NULL;
|
|
0
|
2100 ngx_log_error(NGX_LOG_INFO, c->log, rev->kq_errno,
|
|
10
|
2101 "kevent() reported that client %V closed "
|
|
32
|
2102 "keepalive connection", &c->addr_text);
|
|
22
|
2103 #if (NGX_HTTP_SSL)
|
|
|
2104 if (c->ssl) {
|
|
96
|
2105 c->ssl->no_send_shutdown = 1;
|
|
22
|
2106 }
|
|
|
2107 #endif
|
|
0
|
2108 ngx_http_close_connection(c);
|
|
|
2109 return;
|
|
|
2110 }
|
|
|
2111 }
|
|
|
2112
|
|
|
2113 #endif
|
|
|
2114
|
|
|
2115 b = c->buffer;
|
|
|
2116 size = b->end - b->start;
|
|
|
2117
|
|
|
2118 if (b->pos == NULL) {
|
|
4
|
2119
|
|
|
2120 /*
|
|
|
2121 * The c->buffer's memory was freed by ngx_http_set_keepalive().
|
|
|
2122 * However, the c->buffer->start and c->buffer->end were not changed
|
|
|
2123 * to keep the buffer size.
|
|
|
2124 */
|
|
|
2125
|
|
50
|
2126 b->pos = ngx_palloc(c->pool, size);
|
|
|
2127 if (b->pos == NULL) {
|
|
0
|
2128 ngx_http_close_connection(c);
|
|
|
2129 return;
|
|
|
2130 }
|
|
|
2131
|
|
|
2132 b->start = b->pos;
|
|
|
2133 b->last = b->pos;
|
|
|
2134 b->end = b->pos + size;
|
|
|
2135 }
|
|
|
2136
|
|
|
2137 /*
|
|
|
2138 * MSIE closes a keepalive connection with RST flag
|
|
|
2139 * so we ignore ECONNRESET here.
|
|
|
2140 */
|
|
|
2141
|
|
|
2142 c->log_error = NGX_ERROR_IGNORE_ECONNRESET;
|
|
|
2143 ngx_set_socket_errno(0);
|
|
|
2144
|
|
|
2145 n = c->recv(c, b->last, size);
|
|
|
2146 c->log_error = NGX_ERROR_INFO;
|
|
|
2147
|
|
|
2148 if (n == NGX_AGAIN) {
|
|
58
|
2149 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) {
|
|
24
|
2150 ngx_http_close_connection(c);
|
|
|
2151 }
|
|
|
2152
|
|
0
|
2153 return;
|
|
|
2154 }
|
|
|
2155
|
|
|
2156 if (n == NGX_ERROR) {
|
|
|
2157 ngx_http_close_connection(c);
|
|
|
2158 return;
|
|
|
2159 }
|
|
|
2160
|
|
32
|
2161 c->log->handler = NULL;
|
|
0
|
2162
|
|
|
2163 if (n == 0) {
|
|
|
2164 ngx_log_error(NGX_LOG_INFO, c->log, ngx_socket_errno,
|
|
32
|
2165 "client %V closed keepalive connection", &c->addr_text);
|
|
0
|
2166 ngx_http_close_connection(c);
|
|
|
2167 return;
|
|
|
2168 }
|
|
|
2169
|
|
|
2170 b->last += n;
|
|
32
|
2171
|
|
116
|
2172 #if (NGX_STAT_STUB)
|
|
|
2173 ngx_atomic_fetch_add(ngx_stat_reading, 1);
|
|
|
2174 #endif
|
|
|
2175
|
|
32
|
2176 c->log->handler = ngx_http_log_error;
|
|
|
2177 c->log->action = "reading client request line";
|
|
0
|
2178
|
|
|
2179 ngx_http_init_request(rev);
|
|
|
2180 }
|
|
|
2181
|
|
|
2182
|
|
50
|
2183 static void
|
|
|
2184 ngx_http_set_lingering_close(ngx_http_request_t *r)
|
|
126
|
2185 {
|
|
0
|
2186 ngx_event_t *rev, *wev;
|
|
|
2187 ngx_connection_t *c;
|
|
|
2188 ngx_http_core_loc_conf_t *clcf;
|
|
|
2189
|
|
|
2190 c = r->connection;
|
|
|
2191
|
|
|
2192 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
2193
|
|
|
2194 rev = c->read;
|
|
58
|
2195 rev->handler = ngx_http_lingering_close_handler;
|
|
0
|
2196
|
|
106
|
2197 r->lingering_time = ngx_time() + (time_t) (clcf->lingering_time / 1000);
|
|
0
|
2198 ngx_add_timer(rev, clcf->lingering_timeout);
|
|
|
2199
|
|
58
|
2200 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) {
|
|
0
|
2201 ngx_http_close_request(r, 0);
|
|
|
2202 return;
|
|
|
2203 }
|
|
|
2204
|
|
|
2205 wev = c->write;
|
|
58
|
2206 wev->handler = ngx_http_empty_handler;
|
|
0
|
2207
|
|
|
2208 if (wev->active) {
|
|
4
|
2209 if (ngx_event_flags & NGX_USE_KQUEUE_EVENT) {
|
|
0
|
2210 if (ngx_del_event(wev, NGX_WRITE_EVENT, NGX_DISABLE_EVENT)
|
|
|
2211 == NGX_ERROR)
|
|
|
2212 {
|
|
26
|
2213 ngx_http_close_request(r, 0);
|
|
0
|
2214 return;
|
|
|
2215 }
|
|
|
2216
|
|
|
2217 } else if (ngx_event_flags & NGX_USE_LEVEL_EVENT) {
|
|
|
2218 if (ngx_del_event(wev, NGX_WRITE_EVENT, 0) == NGX_ERROR) {
|
|
26
|
2219 ngx_http_close_request(r, 0);
|
|
0
|
2220 return;
|
|
|
2221 }
|
|
|
2222 }
|
|
|
2223 }
|
|
|
2224
|
|
|
2225 if (ngx_shutdown_socket(c->fd, NGX_WRITE_SHUTDOWN) == -1) {
|
|
|
2226 ngx_connection_error(c, ngx_socket_errno,
|
|
|
2227 ngx_shutdown_socket_n " failed");
|
|
|
2228 ngx_http_close_request(r, 0);
|
|
|
2229 return;
|
|
|
2230 }
|
|
|
2231
|
|
|
2232 if (rev->ready) {
|
|
|
2233 ngx_http_lingering_close_handler(rev);
|
|
|
2234 }
|
|
|
2235 }
|
|
|
2236
|
|
|
2237
|
|
50
|
2238 static void
|
|
|
2239 ngx_http_lingering_close_handler(ngx_event_t *rev)
|
|
0
|
2240 {
|
|
|
2241 ssize_t n;
|
|
|
2242 ngx_msec_t timer;
|
|
|
2243 ngx_connection_t *c;
|
|
|
2244 ngx_http_request_t *r;
|
|
|
2245 ngx_http_core_loc_conf_t *clcf;
|
|
|
2246 u_char buffer[NGX_HTTP_LINGERING_BUFFER_SIZE];
|
|
|
2247
|
|
|
2248 c = rev->data;
|
|
|
2249 r = c->data;
|
|
|
2250
|
|
|
2251 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
|
2252 "http lingering close handler");
|
|
|
2253
|
|
|
2254 if (rev->timedout) {
|
|
126
|
2255 c->timedout = 1;
|
|
0
|
2256 ngx_http_close_request(r, 0);
|
|
|
2257 return;
|
|
|
2258 }
|
|
|
2259
|
|
|
2260 timer = r->lingering_time - ngx_time();
|
|
|
2261 if (timer <= 0) {
|
|
|
2262 ngx_http_close_request(r, 0);
|
|
|
2263 return;
|
|
|
2264 }
|
|
|
2265
|
|
|
2266 do {
|
|
|
2267 n = c->recv(c, buffer, NGX_HTTP_LINGERING_BUFFER_SIZE);
|
|
|
2268
|
|
|
2269 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0, "lingering read: %d", n);
|
|
|
2270
|
|
|
2271 if (n == NGX_ERROR || n == 0) {
|
|
|
2272 ngx_http_close_request(r, 0);
|
|
|
2273 return;
|
|
|
2274 }
|
|
|
2275
|
|
|
2276 } while (rev->ready);
|
|
|
2277
|
|
58
|
2278 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) {
|
|
26
|
2279 ngx_http_close_request(r, 0);
|
|
24
|
2280 return;
|
|
|
2281 }
|
|
|
2282
|
|
0
|
2283 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
2284
|
|
|
2285 timer *= 1000;
|
|
|
2286
|
|
|
2287 if (timer > clcf->lingering_timeout) {
|
|
|
2288 timer = clcf->lingering_timeout;
|
|
|
2289 }
|
|
|
2290
|
|
|
2291 ngx_add_timer(rev, timer);
|
|
|
2292 }
|
|
|
2293
|
|
|
2294
|
|
50
|
2295 void
|
|
|
2296 ngx_http_empty_handler(ngx_event_t *wev)
|
|
0
|
2297 {
|
|
|
2298 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, wev->log, 0, "http empty handler");
|
|
|
2299
|
|
|
2300 return;
|
|
|
2301 }
|
|
|
2302
|
|
|
2303
|
|
58
|
2304 void
|
|
|
2305 ngx_http_request_empty_handler(ngx_http_request_t *r)
|
|
|
2306 {
|
|
|
2307 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
2308 "http requets empty handler");
|
|
|
2309
|
|
|
2310 return;
|
|
|
2311 }
|
|
|
2312
|
|
|
2313
|
|
50
|
2314 ngx_int_t
|
|
|
2315 ngx_http_send_last(ngx_http_request_t *r)
|
|
0
|
2316 {
|
|
|
2317 ngx_buf_t *b;
|
|
|
2318 ngx_chain_t out;
|
|
|
2319
|
|
50
|
2320 b = ngx_calloc_buf(r->pool);
|
|
|
2321 if (b == NULL) {
|
|
0
|
2322 return NGX_ERROR;
|
|
|
2323 }
|
|
|
2324
|
|
|
2325 b->last_buf = 1;
|
|
|
2326 out.buf = b;
|
|
|
2327 out.next = NULL;
|
|
|
2328
|
|
|
2329 return ngx_http_output_filter(r, &out);
|
|
|
2330 }
|
|
|
2331
|
|
|
2332
|
|
50
|
2333 void
|
|
58
|
2334 ngx_http_close_request(ngx_http_request_t *r, ngx_int_t error)
|
|
0
|
2335 {
|
|
118
|
2336 ngx_connection_t *c;
|
|
|
2337 ngx_http_cleanup_t *cln;
|
|
|
2338
|
|
|
2339 c = r->connection;
|
|
|
2340 r = r->main;
|
|
|
2341
|
|
|
2342 for (cln = r->cleanup; cln; cln = cln->next) {
|
|
|
2343 if (cln->handler) {
|
|
|
2344 cln->handler(cln->data);
|
|
|
2345 }
|
|
|
2346 }
|
|
|
2347
|
|
|
2348 ngx_http_request_done(r, error);
|
|
|
2349 ngx_http_close_connection(c);
|
|
|
2350 }
|
|
|
2351
|
|
|
2352
|
|
|
2353 void
|
|
|
2354 ngx_http_request_done(ngx_http_request_t *r, ngx_int_t error)
|
|
|
2355 {
|
|
|
2356 ngx_log_t *log;
|
|
|
2357 struct linger linger;
|
|
|
2358 ngx_http_log_ctx_t *ctx;
|
|
|
2359 ngx_http_core_loc_conf_t *clcf;
|
|
|
2360 ngx_http_core_main_conf_t *cmcf;
|
|
0
|
2361
|
|
|
2362 log = r->connection->log;
|
|
|
2363
|
|
|
2364 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, log, 0, "http close request");
|
|
|
2365
|
|
|
2366 if (r->pool == NULL) {
|
|
80
|
2367 ngx_log_error(NGX_LOG_ALERT, log, 0, "http request already closed");
|
|
0
|
2368 return;
|
|
|
2369 }
|
|
|
2370
|
|
|
2371 #if (NGX_STAT_STUB)
|
|
116
|
2372
|
|
0
|
2373 if (r->stat_reading) {
|
|
110
|
2374 ngx_atomic_fetch_add(ngx_stat_reading, -1);
|
|
0
|
2375 }
|
|
|
2376
|
|
|
2377 if (r->stat_writing) {
|
|
110
|
2378 ngx_atomic_fetch_add(ngx_stat_writing, -1);
|
|
0
|
2379 }
|
|
116
|
2380
|
|
0
|
2381 #endif
|
|
|
2382
|
|
|
2383 if (error && r->headers_out.status == 0) {
|
|
|
2384 r->headers_out.status = error;
|
|
|
2385 }
|
|
|
2386
|
|
118
|
2387 cmcf = ngx_http_get_module_main_conf(r, ngx_http_core_module);
|
|
|
2388
|
|
|
2389 if (cmcf->log_handler) {
|
|
|
2390 cmcf->log_handler(r);
|
|
|
2391 }
|
|
0
|
2392
|
|
|
2393 if (r->connection->timedout) {
|
|
|
2394 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
2395
|
|
|
2396 if (clcf->reset_timedout_connection) {
|
|
58
|
2397 linger.l_onoff = 1;
|
|
|
2398 linger.l_linger = 0;
|
|
0
|
2399
|
|
|
2400 if (setsockopt(r->connection->fd, SOL_SOCKET, SO_LINGER,
|
|
58
|
2401 (const void *) &linger, sizeof(struct linger)) == -1)
|
|
0
|
2402 {
|
|
|
2403 ngx_log_error(NGX_LOG_ALERT, log, ngx_socket_errno,
|
|
|
2404 "setsockopt(SO_LINGER) failed");
|
|
|
2405 }
|
|
|
2406 }
|
|
|
2407 }
|
|
|
2408
|
|
58
|
2409 /* the various request strings were allocated from r->pool */
|
|
0
|
2410 ctx = log->data;
|
|
10
|
2411 ctx->request = NULL;
|
|
0
|
2412
|
|
|
2413 r->request_line.len = 0;
|
|
|
2414
|
|
|
2415 ngx_destroy_pool(r->pool);
|
|
|
2416 }
|
|
|
2417
|
|
|
2418
|
|
80
|
2419 static void
|
|
50
|
2420 ngx_http_close_connection(ngx_connection_t *c)
|
|
0
|
2421 {
|
|
28
|
2422 ngx_pool_t *pool;
|
|
|
2423
|
|
0
|
2424 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
|
2425 "close http connection: %d", c->fd);
|
|
|
2426
|
|
88
|
2427 #if (NGX_HTTP_SSL)
|
|
2
|
2428
|
|
|
2429 if (c->ssl) {
|
|
|
2430 if (ngx_ssl_shutdown(c) == NGX_AGAIN) {
|
|
126
|
2431 c->ssl->handler = ngx_http_close_connection;
|
|
2
|
2432 return;
|
|
|
2433 }
|
|
|
2434 }
|
|
|
2435
|
|
|
2436 #endif
|
|
|
2437
|
|
0
|
2438 #if (NGX_STAT_STUB)
|
|
110
|
2439 ngx_atomic_fetch_add(ngx_stat_active, -1);
|
|
0
|
2440 #endif
|
|
|
2441
|
|
28
|
2442 pool = c->pool;
|
|
|
2443
|
|
0
|
2444 ngx_close_connection(c);
|
|
28
|
2445
|
|
50
|
2446 ngx_destroy_pool(pool);
|
|
0
|
2447 }
|
|
|
2448
|
|
|
2449
|
|
50
|
2450 static u_char *
|
|
|
2451 ngx_http_log_error(ngx_log_t *log, u_char *buf, size_t len)
|
|
0
|
2452 {
|
|
32
|
2453 u_char *p;
|
|
54
|
2454 ngx_http_request_t *r;
|
|
32
|
2455 ngx_http_log_ctx_t *ctx;
|
|
10
|
2456
|
|
32
|
2457 if (log->action) {
|
|
58
|
2458 p = ngx_snprintf(buf, len, " while %s", log->action);
|
|
10
|
2459 len -= p - buf;
|
|
54
|
2460 buf = p;
|
|
10
|
2461 }
|
|
|
2462
|
|
58
|
2463 ctx = log->data;
|
|
|
2464
|
|
54
|
2465 p = ngx_snprintf(buf, len, ", client: %V", ctx->client);
|
|
58
|
2466 len -= p - buf;
|
|
54
|
2467
|
|
|
2468 r = ctx->request;
|
|
|
2469
|
|
58
|
2470 if (r) {
|
|
|
2471 return r->log_handler(r, p, len);
|
|
0
|
2472 }
|
|
10
|
2473
|
|
58
|
2474 return p;
|
|
|
2475 }
|
|
|
2476
|
|
|
2477
|
|
|
2478 static u_char *
|
|
|
2479 ngx_http_log_error_handler(ngx_http_request_t *r, u_char *buf, size_t len)
|
|
|
2480 {
|
|
|
2481 u_char *p;
|
|
54
|
2482
|
|
|
2483 if (r->server_name.data) {
|
|
|
2484 p = ngx_snprintf(buf, len, ", server: %V", &r->server_name);
|
|
52
|
2485 len -= p - buf;
|
|
54
|
2486 buf = p;
|
|
52
|
2487 }
|
|
|
2488
|
|
54
|
2489 if (r->unparsed_uri.data) {
|
|
|
2490 p = ngx_snprintf(buf, len, ", URL: \"%V\"", &r->unparsed_uri);
|
|
|
2491 len -= p - buf;
|
|
|
2492 buf = p;
|
|
|
2493
|
|
|
2494 } else {
|
|
|
2495 if (r->request_line.data == NULL && r->request_start) {
|
|
|
2496 for (p = r->request_start; p < r->header_in->last; p++) {
|
|
|
2497 if (*p == CR || *p == LF) {
|
|
|
2498 break;
|
|
|
2499 }
|
|
|
2500 }
|
|
|
2501
|
|
|
2502 r->request_line.len = p - r->request_start;
|
|
|
2503 r->request_line.data = r->request_start;
|
|
|
2504 }
|
|
|
2505
|
|
|
2506 if (r->request_line.len) {
|
|
|
2507 p = ngx_snprintf(buf, len, ", request: \"%V\"", &r->request_line);
|
|
|
2508 len -= p - buf;
|
|
|
2509 buf = p;
|
|
|
2510 }
|
|
10
|
2511 }
|
|
|
2512
|
|
54
|
2513 return ngx_http_log_error_info(r, buf, len);
|
|
0
|
2514 }
|
|
54
|
2515
|
|
|
2516
|
|
|
2517 u_char *
|
|
|
2518 ngx_http_log_error_info(ngx_http_request_t *r, u_char *buf, size_t len)
|
|
|
2519 {
|
|
|
2520 u_char *p;
|
|
|
2521
|
|
|
2522 if (r->headers_in.host) {
|
|
|
2523 p = ngx_snprintf(buf, len, ", host: \"%V\"",
|
|
|
2524 &r->headers_in.host->value);
|
|
|
2525 len -= p - buf;
|
|
|
2526 buf = p;
|
|
|
2527 }
|
|
|
2528
|
|
|
2529 if (r->headers_in.referer) {
|
|
|
2530 p = ngx_snprintf(buf, len, ", referrer: \"%V\"",
|
|
|
2531 &r->headers_in.referer->value);
|
|
|
2532 buf = p;
|
|
|
2533 }
|
|
|
2534
|
|
|
2535 return buf;
|
|
|
2536 }
|
