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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 #if (NGX_HTTP_SSL)
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15 static void ngx_http_ssl_handshake(ngx_event_t *rev);
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16 #endif
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17 static void ngx_http_process_request_line(ngx_event_t *rev);
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18 static void ngx_http_process_request_headers(ngx_event_t *rev);
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19 static ssize_t ngx_http_read_request_header(ngx_http_request_t *r);
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20 static ngx_int_t ngx_http_alloc_large_header_buffer(ngx_http_request_t *r,
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50
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21 ngx_uint_t request_line);
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58
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22
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23 static ngx_int_t ngx_http_process_header_line(ngx_http_request_t *r,
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24 ngx_table_elt_t *h, ngx_uint_t offset);
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72
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25 static ngx_int_t ngx_http_process_unique_header_line(ngx_http_request_t *r,
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26 ngx_table_elt_t *h, ngx_uint_t offset);
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58
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27 static ngx_int_t ngx_http_process_cookie(ngx_http_request_t *r,
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28 ngx_table_elt_t *h, ngx_uint_t offset);
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29
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0
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30 static ngx_int_t ngx_http_process_request_header(ngx_http_request_t *r);
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26
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31 static ngx_int_t ngx_http_find_virtual_server(ngx_http_request_t *r);
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0
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32
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58
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33 static void ngx_http_request_handler(ngx_event_t *ev);
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0
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34 static void ngx_http_set_write_handler(ngx_http_request_t *r);
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58
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35 static void ngx_http_writer(ngx_http_request_t *r);
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36 static ngx_int_t ngx_http_postponed_handler(ngx_http_request_t *r);
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37
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38 static void ngx_http_block_read(ngx_http_request_t *r);
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39 static void ngx_http_read_discarded_body_handler(ngx_http_request_t *r);
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0
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40 static ngx_int_t ngx_http_read_discarded_body(ngx_http_request_t *r);
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41
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42 static void ngx_http_set_keepalive(ngx_http_request_t *r);
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43 static void ngx_http_keepalive_handler(ngx_event_t *ev);
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44 static void ngx_http_set_lingering_close(ngx_http_request_t *r);
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45 static void ngx_http_lingering_close_handler(ngx_event_t *ev);
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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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51
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54
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52 static char *ngx_http_client_errors[] = {
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53
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54 /* NGX_HTTP_PARSE_INVALID_METHOD */
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55 "client sent invalid method",
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56
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57 /* NGX_HTTP_PARSE_INVALID_REQUEST */
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58 "client sent invalid request",
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59
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60 /* NGX_HTTP_PARSE_INVALID_09_METHOD */
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61 "client sent invalid method in HTTP/0.9 request"
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0
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62 };
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63
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64
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65 ngx_http_header_t ngx_http_headers_in[] = {
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58
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66 { ngx_string("Host"), offsetof(ngx_http_headers_in_t, host),
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72
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67 ngx_http_process_unique_header_line },
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58
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68
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69 { ngx_string("Connection"), offsetof(ngx_http_headers_in_t, connection),
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72
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70 ngx_http_process_unique_header_line },
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58
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71
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0
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72 { ngx_string("If-Modified-Since"),
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58
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73 offsetof(ngx_http_headers_in_t, if_modified_since),
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74 ngx_http_process_header_line },
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75
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76 { ngx_string("User-Agent"), offsetof(ngx_http_headers_in_t, user_agent),
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77 ngx_http_process_header_line },
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78
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79 { ngx_string("Referer"), offsetof(ngx_http_headers_in_t, referer),
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80 ngx_http_process_header_line },
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81
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0
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82 { ngx_string("Content-Length"),
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58
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83 offsetof(ngx_http_headers_in_t, content_length),
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72
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84 ngx_http_process_unique_header_line },
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58
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85
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28
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86 { ngx_string("Content-Type"),
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58
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87 offsetof(ngx_http_headers_in_t, content_type),
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88 ngx_http_process_header_line },
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89
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90 { ngx_string("Range"), offsetof(ngx_http_headers_in_t, range),
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91 ngx_http_process_header_line },
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92
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0
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93 #if 0
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58
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94 { ngx_string("If-Range"), offsetof(ngx_http_headers_in_t, if_range),
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95 ngx_http_process_header_line },
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0
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96 #endif
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97
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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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114 #if (NGX_HTTP_PROXY)
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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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38
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120 #if (NGX_HTTP_HEADERS)
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58
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121 { ngx_string("Accept"), offsetof(ngx_http_headers_in_t, accept),
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122 ngx_http_process_header_line },
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123
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38
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124 { ngx_string("Accept-Language"),
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58
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125 offsetof(ngx_http_headers_in_t, accept_language),
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126 ngx_http_process_header_line },
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38
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127 #endif
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128
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58
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129 { ngx_string("Cookie"), 0, ngx_http_process_cookie },
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130
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131 { ngx_null_string, 0, NULL }
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0
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132 };
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133
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134
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50
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135 void
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136 ngx_http_init_connection(ngx_connection_t *c)
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0
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137 {
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138 ngx_event_t *rev;
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139 ngx_http_log_ctx_t *ctx;
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140
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50
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141 ctx = ngx_palloc(c->pool, sizeof(ngx_http_log_ctx_t));
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142 if (ctx == NULL) {
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0
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143 ngx_http_close_connection(c);
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144 return;
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145 }
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146
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10
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147 ctx->client = &c->addr_text;
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148 ctx->request = NULL;
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32
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149
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150 c->log->connection = c->number;
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151 c->log->handler = ngx_http_log_error;
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0
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152 c->log->data = ctx;
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32
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153 c->log->action = "reading client request line";
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154
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0
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155 c->log_error = NGX_ERROR_INFO;
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156
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157 rev = c->read;
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58
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158 rev->handler = ngx_http_init_request;
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159
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160 /* STUB: epoll edge */ c->write->handler = ngx_http_empty_handler;
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0
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161
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162 if (rev->ready) {
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163 /* the deferred accept(), rtsig, aio, iocp */
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164
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165 if (ngx_accept_mutex) {
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166 if (ngx_mutex_lock(ngx_posted_events_mutex) == NGX_ERROR) {
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42
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167
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0
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168 ngx_http_close_connection(c);
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169 return;
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170 }
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171
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172 ngx_post_event(rev);
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173
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174 ngx_mutex_unlock(ngx_posted_events_mutex);
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42
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175
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176 #if (NGX_STAT_STUB)
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44
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177 ngx_atomic_inc(ngx_stat_reading);
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42
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178 #endif
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0
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179 return;
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180 }
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181
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182 #if (NGX_STAT_STUB)
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42
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183 ngx_atomic_inc(ngx_stat_reading);
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0
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184 #endif
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185
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186 ngx_http_init_request(rev);
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187 return;
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188 }
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189
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190 ngx_add_timer(rev, c->listening->post_accept_timeout);
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191
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192 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) {
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193 ngx_http_close_connection(c);
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194 return;
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195 }
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196
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197 #if (NGX_STAT_STUB)
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42
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198 ngx_atomic_inc(ngx_stat_reading);
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0
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199 #endif
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200
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201 }
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202
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203
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50
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204 static
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205 void ngx_http_init_request(ngx_event_t *rev)
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0
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206 {
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207 ngx_uint_t i;
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208 socklen_t len;
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28
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209 struct sockaddr_in sin;
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0
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210 ngx_connection_t *c;
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211 ngx_http_request_t *r;
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212 ngx_http_in_port_t *in_port;
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213 ngx_http_in_addr_t *in_addr;
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54
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214 ngx_http_log_ctx_t *ctx;
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0
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215 ngx_http_connection_t *hc;
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216 ngx_http_server_name_t *server_name;
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217 ngx_http_core_srv_conf_t *cscf;
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218 ngx_http_core_loc_conf_t *clcf;
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219 #if (NGX_HTTP_SSL)
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220 ngx_http_ssl_srv_conf_t *sscf;
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221 #endif
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222
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223 c = rev->data;
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224
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225 if (rev->timedout) {
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226 ngx_log_error(NGX_LOG_INFO, c->log, NGX_ETIMEDOUT, "client timed out");
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227
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228 #if (NGX_STAT_STUB)
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42
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229 ngx_atomic_dec(ngx_stat_reading);
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0
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230 #endif
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231
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232 ngx_http_close_connection(c);
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233 return;
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234 }
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235
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236 hc = c->data;
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237
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238 if (hc) {
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239
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240 #if (NGX_STAT_STUB)
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42
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241 ngx_atomic_inc(ngx_stat_reading);
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0
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242 #endif
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243
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244 } else {
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50
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245 hc = ngx_pcalloc(c->pool, sizeof(ngx_http_connection_t));
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246 if (hc == NULL) {
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0
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247
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248 #if (NGX_STAT_STUB)
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42
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249 ngx_atomic_dec(ngx_stat_reading);
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0
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250 #endif
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251
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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
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257 r = hc->request;
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258
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259 if (r) {
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260 ngx_memzero(r, sizeof(ngx_http_request_t));
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261
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262 r->pipeline = hc->pipeline;
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263
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264 if (hc->nbusy) {
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265 r->header_in = hc->busy[0];
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266 }
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267
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268 } else {
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50
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269 r = ngx_pcalloc(c->pool, sizeof(ngx_http_request_t));
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270 if (r == NULL) {
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0
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271
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272 #if (NGX_STAT_STUB)
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42
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273 ngx_atomic_dec(ngx_stat_reading);
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0
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274 #endif
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275
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276 ngx_http_close_connection(c);
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277 return;
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278 }
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279
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280 hc->request = r;
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281 }
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282
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283 #if (NGX_STAT_STUB)
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42
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284 ngx_atomic_dec(ngx_stat_reading);
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0
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285 #endif
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286
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287 c->data = r;
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288 r->http_connection = hc;
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289
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290 c->sent = 0;
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291 r->signature = NGX_HTTP_MODULE;
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292
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293 /* find the server configuration for the address:port */
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294
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295 /* AF_INET only */
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296
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297 in_port = c->servers;
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298 in_addr = in_port->addrs.elts;
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299
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300 r->port = in_port->port;
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301 r->port_text = &in_port->port_text;
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302
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303 i = 0;
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304
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305 if (in_port->addrs.nelts > 1) {
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306
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307 /*
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308 * There are several addresses on this port and one of them
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309 * is the "*:port" wildcard so getsockname() is needed to determine
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310 * the server address.
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311 *
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312 * AcceptEx() already gave this address.
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313 */
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314
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10
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315 #if (NGX_WIN32)
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0
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316 if (c->local_sockaddr) {
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317 r->in_addr =
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318 ((struct sockaddr_in *) c->local_sockaddr)->sin_addr.s_addr;
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319
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28
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320 } else
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0
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321 #endif
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28
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322 {
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0
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323 len = sizeof(struct sockaddr_in);
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28
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324 if (getsockname(c->fd, (struct sockaddr *) &sin, &len) == -1) {
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0
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325 ngx_connection_error(c, ngx_socket_errno,
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326 "getsockname() failed");
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327 ngx_http_close_connection(c);
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328 return;
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329 }
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330
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28
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331 r->in_addr = sin.sin_addr.s_addr;
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0
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332 }
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333
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334 /* the last in_port->addrs address is "*" */
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335
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336 for ( /* void */ ; i < in_port->addrs.nelts - 1; i++) {
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337 if (in_addr[i].addr == r->in_addr) {
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338 break;
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339 }
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340 }
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341
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342 } else {
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343 r->in_addr = in_addr[0].addr;
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344 }
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345
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26
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346 r->virtual_names = &in_addr[i];
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0
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347
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348 /* the default server configuration for the address:port */
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349 cscf = in_addr[i].core_srv_conf;
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350
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351 r->main_conf = cscf->ctx->main_conf;
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352 r->srv_conf = cscf->ctx->srv_conf;
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353 r->loc_conf = cscf->ctx->loc_conf;
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354
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58
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355 rev->handler = ngx_http_process_request_line;
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0
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356
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357 #if (NGX_HTTP_SSL)
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358
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359 sscf = ngx_http_get_module_srv_conf(r, ngx_http_ssl_module);
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360 if (sscf->enable) {
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361
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362 if (c->ssl == NULL) {
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363 if (ngx_ssl_create_session(sscf->ssl_ctx, c, NGX_SSL_BUFFER)
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56
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364 == NGX_ERROR)
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0
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365 {
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366 ngx_http_close_connection(c);
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367 return;
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368 }
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369
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58
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370 rev->handler = ngx_http_ssl_handshake;
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26
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371
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0
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372 /*
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373 * The majority of browsers do not send the "close notify" alert.
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374 * Among them are MSIE, Mozilla, Netscape 4, Konqueror, and Links.
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54
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375 * And what is more, MSIE ignores the server's alert.
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0
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376 *
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377 * Opera always sends the alert.
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378 */
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379
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380 c->ssl->no_rcv_shut = 1;
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381 }
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382
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|
62
|
383 r->main_filter_need_in_memory = 1;
|
|
0
|
384 }
|
|
|
385
|
|
|
386 #endif
|
|
|
387
|
|
|
388 server_name = cscf->server_names.elts;
|
|
6
|
389 r->server_name = server_name->name;
|
|
0
|
390
|
|
|
391 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
392 c->log->file = clcf->err_log->file;
|
|
|
393 if (!(c->log->log_level & NGX_LOG_DEBUG_CONNECTION)) {
|
|
|
394 c->log->log_level = clcf->err_log->log_level;
|
|
|
395 }
|
|
|
396
|
|
|
397 if (c->buffer == NULL) {
|
|
|
398 c->buffer = ngx_create_temp_buf(c->pool,
|
|
|
399 cscf->client_header_buffer_size);
|
|
|
400 if (c->buffer == NULL) {
|
|
|
401 ngx_http_close_connection(c);
|
|
|
402 return;
|
|
|
403 }
|
|
|
404 }
|
|
|
405
|
|
|
406 if (r->header_in == NULL) {
|
|
|
407 r->header_in = c->buffer;
|
|
|
408 }
|
|
|
409
|
|
50
|
410 r->pool = ngx_create_pool(cscf->request_pool_size, c->log);
|
|
|
411 if (r->pool == NULL) {
|
|
0
|
412 ngx_http_close_connection(c);
|
|
|
413 return;
|
|
|
414 }
|
|
|
415
|
|
|
416
|
|
|
417 if (ngx_list_init(&r->headers_out.headers, r->pool, 20,
|
|
58
|
418 sizeof(ngx_table_elt_t)) == NGX_ERROR)
|
|
0
|
419 {
|
|
|
420 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
421 ngx_http_close_connection(c);
|
|
|
422 return;
|
|
|
423 }
|
|
|
424
|
|
|
425
|
|
|
426 r->ctx = ngx_pcalloc(r->pool, sizeof(void *) * ngx_http_max_module);
|
|
|
427 if (r->ctx == NULL) {
|
|
|
428 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
429 ngx_http_close_connection(c);
|
|
|
430 return;
|
|
|
431 }
|
|
|
432
|
|
|
433 c->single_connection = 1;
|
|
|
434 r->connection = c;
|
|
|
435
|
|
46
|
436 r->start_time = ngx_time();
|
|
|
437
|
|
0
|
438 r->headers_in.content_length_n = -1;
|
|
|
439 r->headers_in.keep_alive_n = -1;
|
|
|
440 r->headers_out.content_length_n = -1;
|
|
|
441 r->headers_out.last_modified_time = -1;
|
|
|
442
|
|
|
443 r->http_state = NGX_HTTP_READING_REQUEST_STATE;
|
|
|
444
|
|
54
|
445 ctx = c->log->data;
|
|
|
446 ctx->request = r;
|
|
58
|
447 r->log_handler = ngx_http_log_error_handler;
|
|
54
|
448
|
|
0
|
449 #if (NGX_STAT_STUB)
|
|
42
|
450 ngx_atomic_inc(ngx_stat_reading);
|
|
26
|
451 r->stat_reading = 1;
|
|
42
|
452 ngx_atomic_inc(ngx_stat_requests);
|
|
0
|
453 #endif
|
|
|
454
|
|
58
|
455 rev->handler(rev);
|
|
0
|
456 }
|
|
|
457
|
|
|
458
|
|
|
459 #if (NGX_HTTP_SSL)
|
|
|
460
|
|
50
|
461 static void
|
|
|
462 ngx_http_ssl_handshake(ngx_event_t *rev)
|
|
0
|
463 {
|
|
10
|
464 u_char buf[1];
|
|
|
465 ssize_t n;
|
|
0
|
466 ngx_int_t rc;
|
|
|
467 ngx_connection_t *c;
|
|
|
468 ngx_http_request_t *r;
|
|
|
469
|
|
|
470 c = rev->data;
|
|
|
471 r = c->data;
|
|
|
472
|
|
|
473 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, rev->log, 0,
|
|
|
474 "http check ssl handshake");
|
|
|
475
|
|
|
476 if (rev->timedout) {
|
|
54
|
477 ngx_log_error(NGX_LOG_INFO, c->log, NGX_ETIMEDOUT, "client timed out");
|
|
|
478 c->timedout = 1;
|
|
|
479 ngx_http_close_request(r, NGX_HTTP_REQUEST_TIME_OUT);
|
|
|
480 ngx_http_close_connection(c);
|
|
0
|
481 return;
|
|
|
482 }
|
|
|
483
|
|
|
484 n = recv(c->fd, buf, 1, MSG_PEEK);
|
|
|
485
|
|
|
486 if (n == -1 && ngx_socket_errno == NGX_EAGAIN) {
|
|
|
487 return;
|
|
|
488 }
|
|
|
489
|
|
|
490 if (n == 1) {
|
|
|
491 if (buf[0] == 0x80 /* SSLv2 */ || buf[0] == 0x16 /* SSLv3/TLSv1 */) {
|
|
|
492 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, rev->log, 0,
|
|
10
|
493 "https ssl handshake: 0x%02Xd", buf[0]);
|
|
0
|
494
|
|
|
495 c->recv = ngx_ssl_recv;
|
|
|
496 c->send_chain = ngx_ssl_send_chain;
|
|
|
497
|
|
|
498 rc = ngx_ssl_handshake(c);
|
|
|
499
|
|
|
500 if (rc == NGX_ERROR) {
|
|
|
501 ngx_http_close_request(r, NGX_HTTP_BAD_REQUEST);
|
|
|
502 ngx_http_close_connection(r->connection);
|
|
|
503 return;
|
|
|
504 }
|
|
|
505
|
|
|
506 if (rc != NGX_OK) {
|
|
|
507 return;
|
|
|
508 }
|
|
|
509
|
|
|
510 } else {
|
|
|
511 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, rev->log, 0,
|
|
|
512 "plain http");
|
|
|
513
|
|
|
514 r->plain_http = 1;
|
|
|
515 }
|
|
|
516 }
|
|
|
517
|
|
58
|
518 rev->handler = ngx_http_process_request_line;
|
|
0
|
519 ngx_http_process_request_line(rev);
|
|
|
520 }
|
|
|
521
|
|
|
522 #endif
|
|
|
523
|
|
|
524
|
|
50
|
525 static void
|
|
|
526 ngx_http_process_request_line(ngx_event_t *rev)
|
|
0
|
527 {
|
|
|
528 ssize_t n;
|
|
|
529 ngx_int_t rc, rv;
|
|
|
530 ngx_connection_t *c;
|
|
|
531 ngx_http_request_t *r;
|
|
|
532 ngx_http_log_ctx_t *ctx;
|
|
|
533
|
|
|
534 c = rev->data;
|
|
|
535 r = c->data;
|
|
|
536
|
|
|
537 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, rev->log, 0,
|
|
|
538 "http process request line");
|
|
|
539
|
|
|
540 if (rev->timedout) {
|
|
54
|
541 ngx_log_error(NGX_LOG_INFO, c->log, NGX_ETIMEDOUT, "client timed out");
|
|
|
542 c->timedout = 1;
|
|
|
543 ngx_http_close_request(r, NGX_HTTP_REQUEST_TIME_OUT);
|
|
|
544 ngx_http_close_connection(c);
|
|
0
|
545 return;
|
|
|
546 }
|
|
|
547
|
|
|
548 rc = NGX_AGAIN;
|
|
|
549
|
|
|
550 for ( ;; ) {
|
|
|
551
|
|
|
552 if (rc == NGX_AGAIN) {
|
|
|
553 n = ngx_http_read_request_header(r);
|
|
|
554
|
|
|
555 if (n == NGX_AGAIN || n == NGX_ERROR) {
|
|
|
556 return;
|
|
|
557 }
|
|
|
558 }
|
|
|
559
|
|
|
560 rc = ngx_http_parse_request_line(r, r->header_in);
|
|
|
561
|
|
|
562 if (rc == NGX_OK) {
|
|
|
563
|
|
|
564 /* the request line has been parsed successfully */
|
|
|
565
|
|
10
|
566 r->request_line.len = r->request_end - r->request_start;
|
|
|
567 r->request_line.data = r->request_start;
|
|
|
568
|
|
0
|
569
|
|
|
570 if (r->args_start) {
|
|
|
571 r->uri.len = r->args_start - 1 - r->uri_start;
|
|
|
572 } else {
|
|
|
573 r->uri.len = r->uri_end - r->uri_start;
|
|
|
574 }
|
|
|
575
|
|
18
|
576
|
|
2
|
577 if (r->complex_uri || r->quoted_uri) {
|
|
10
|
578
|
|
50
|
579 r->uri.data = ngx_palloc(r->pool, r->uri.len + 1);
|
|
|
580 if (r->uri.data == NULL) {
|
|
10
|
581 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
582 ngx_http_close_connection(c);
|
|
|
583 return;
|
|
|
584 }
|
|
|
585
|
|
0
|
586 rc = ngx_http_parse_complex_uri(r);
|
|
|
587
|
|
54
|
588 if (rc == NGX_HTTP_PARSE_INVALID_REQUEST) {
|
|
|
589 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
|
590 "client sent invalid request");
|
|
|
591 ngx_http_finalize_request(r, NGX_HTTP_BAD_REQUEST);
|
|
0
|
592 return;
|
|
|
593 }
|
|
|
594
|
|
|
595 } else {
|
|
10
|
596 r->uri.data = r->uri_start;
|
|
0
|
597 }
|
|
|
598
|
|
18
|
599
|
|
10
|
600 r->unparsed_uri.len = r->uri_end - r->uri_start;
|
|
|
601 r->unparsed_uri.data = r->uri_start;
|
|
|
602
|
|
0
|
603
|
|
58
|
604 r->method_name.len = r->method_end - r->request_start + 1;
|
|
|
605 r->method_name.data = r->request_line.data;
|
|
0
|
606
|
|
10
|
607
|
|
28
|
608 if (r->http_protocol.data) {
|
|
|
609 r->http_protocol.len = r->request_end - r->http_protocol.data;
|
|
|
610 }
|
|
|
611
|
|
|
612
|
|
0
|
613 if (r->uri_ext) {
|
|
|
614 if (r->args_start) {
|
|
|
615 r->exten.len = r->args_start - 1 - r->uri_ext;
|
|
|
616 } else {
|
|
|
617 r->exten.len = r->uri_end - r->uri_ext;
|
|
|
618 }
|
|
|
619
|
|
10
|
620 r->exten.data = r->uri_ext;
|
|
0
|
621 }
|
|
|
622
|
|
10
|
623
|
|
0
|
624 if (r->args_start && r->uri_end > r->args_start) {
|
|
|
625 r->args.len = r->uri_end - r->args_start;
|
|
10
|
626 r->args.data = r->args_start;
|
|
0
|
627 }
|
|
|
628
|
|
10
|
629
|
|
|
630 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
|
631 "http request line: \"%V\"", &r->request_line);
|
|
|
632
|
|
0
|
633 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
10
|
634 "http uri: \"%V\"", &r->uri);
|
|
0
|
635
|
|
|
636 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
10
|
637 "http args: \"%V\"", &r->args);
|
|
0
|
638
|
|
|
639 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
10
|
640 "http exten: \"%V\"", &r->exten);
|
|
|
641
|
|
0
|
642 if (r->http_version < NGX_HTTP_VERSION_10) {
|
|
58
|
643 r->read_event_handler = ngx_http_block_read;
|
|
0
|
644 ngx_http_handler(r);
|
|
|
645 return;
|
|
|
646 }
|
|
|
647
|
|
|
648
|
|
|
649 if (ngx_list_init(&r->headers_in.headers, r->pool, 20,
|
|
|
650 sizeof(ngx_table_elt_t)) == NGX_ERROR)
|
|
|
651 {
|
|
|
652 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
653 ngx_http_close_connection(c);
|
|
|
654 return;
|
|
|
655 }
|
|
|
656
|
|
|
657
|
|
48
|
658 if (ngx_array_init(&r->headers_in.cookies, r->pool, 2,
|
|
0
|
659 sizeof(ngx_table_elt_t *)) == NGX_ERROR)
|
|
|
660 {
|
|
|
661 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
662 ngx_http_close_connection(c);
|
|
|
663 return;
|
|
|
664 }
|
|
|
665
|
|
32
|
666 c->log->action = "reading client request headers";
|
|
0
|
667
|
|
58
|
668 rev->handler = ngx_http_process_request_headers;
|
|
0
|
669 ngx_http_process_request_headers(rev);
|
|
|
670
|
|
|
671 return;
|
|
54
|
672 }
|
|
|
673
|
|
|
674 if (rc != NGX_AGAIN) {
|
|
0
|
675
|
|
|
676 /* there was error while a request line parsing */
|
|
|
677
|
|
54
|
678 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
|
679 ngx_http_client_errors[rc - NGX_HTTP_CLIENT_ERROR]);
|
|
|
680 ngx_http_finalize_request(r, NGX_HTTP_BAD_REQUEST);
|
|
0
|
681 return;
|
|
|
682 }
|
|
|
683
|
|
|
684 /* NGX_AGAIN: a request line parsing is still incomplete */
|
|
|
685
|
|
|
686 if (r->header_in->pos == r->header_in->end) {
|
|
|
687
|
|
|
688 rv = ngx_http_alloc_large_header_buffer(r, 1);
|
|
|
689
|
|
|
690 if (rv == NGX_ERROR) {
|
|
|
691 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
692 ngx_http_close_connection(c);
|
|
|
693 return;
|
|
|
694 }
|
|
|
695
|
|
|
696 if (rv == NGX_DECLINED) {
|
|
54
|
697 ctx = c->log->data;
|
|
|
698 ctx->request = r;
|
|
|
699
|
|
|
700 r->request_line.len = r->header_in->end - r->request_start;
|
|
|
701 r->request_line.data = r->request_start;
|
|
|
702
|
|
|
703 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
|
704 "client sent too long URI");
|
|
|
705 ngx_http_finalize_request(r, NGX_HTTP_REQUEST_URI_TOO_LARGE);
|
|
0
|
706 return;
|
|
|
707 }
|
|
|
708 }
|
|
|
709 }
|
|
|
710 }
|
|
|
711
|
|
|
712
|
|
50
|
713 static void
|
|
|
714 ngx_http_process_request_headers(ngx_event_t *rev)
|
|
0
|
715 {
|
|
56
|
716 ssize_t n;
|
|
|
717 ngx_int_t rc, rv;
|
|
|
718 ngx_uint_t key;
|
|
|
719 ngx_str_t header;
|
|
58
|
720 ngx_table_elt_t *h;
|
|
56
|
721 ngx_connection_t *c;
|
|
|
722 ngx_http_header_t *hh;
|
|
|
723 ngx_http_request_t *r;
|
|
60
|
724 ngx_http_core_srv_conf_t *cscf;
|
|
56
|
725 ngx_http_core_main_conf_t *cmcf;
|
|
0
|
726
|
|
|
727 c = rev->data;
|
|
|
728 r = c->data;
|
|
|
729
|
|
|
730 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, rev->log, 0,
|
|
|
731 "http process request header line");
|
|
|
732
|
|
|
733 if (rev->timedout) {
|
|
54
|
734 ngx_log_error(NGX_LOG_INFO, c->log, NGX_ETIMEDOUT, "client timed out");
|
|
|
735 c->timedout = 1;
|
|
|
736 ngx_http_close_request(r, NGX_HTTP_REQUEST_TIME_OUT);
|
|
|
737 ngx_http_close_connection(c);
|
|
0
|
738 return;
|
|
|
739 }
|
|
|
740
|
|
56
|
741 cmcf = ngx_http_get_module_main_conf(r, ngx_http_core_module);
|
|
60
|
742 cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
|
|
56
|
743 hh = (ngx_http_header_t *) cmcf->headers_in_hash.buckets;
|
|
|
744
|
|
0
|
745 rc = NGX_AGAIN;
|
|
|
746
|
|
|
747 for ( ;; ) {
|
|
|
748
|
|
|
749 if (rc == NGX_AGAIN) {
|
|
|
750
|
|
|
751 if (r->header_in->pos == r->header_in->end) {
|
|
|
752
|
|
|
753 rv = ngx_http_alloc_large_header_buffer(r, 0);
|
|
|
754
|
|
|
755 if (rv == NGX_ERROR) {
|
|
|
756 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
757 ngx_http_close_connection(c);
|
|
|
758 return;
|
|
|
759 }
|
|
|
760
|
|
|
761 if (rv == NGX_DECLINED) {
|
|
54
|
762 header.len = r->header_in->end - r->header_name_start;
|
|
|
763 header.data = r->header_name_start;
|
|
|
764 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
|
765 "client sent too long header line: \"%V\"",
|
|
|
766 &header);
|
|
|
767 ngx_http_close_request(r, NGX_HTTP_BAD_REQUEST);
|
|
|
768 ngx_http_close_connection(c);
|
|
0
|
769 return;
|
|
|
770 }
|
|
|
771 }
|
|
|
772
|
|
|
773 n = ngx_http_read_request_header(r);
|
|
|
774
|
|
|
775 if (n == NGX_AGAIN || n == NGX_ERROR) {
|
|
|
776 return;
|
|
|
777 }
|
|
|
778 }
|
|
|
779
|
|
|
780 rc = ngx_http_parse_header_line(r, r->header_in);
|
|
|
781
|
|
|
782 if (rc == NGX_OK) {
|
|
|
783
|
|
60
|
784 if (r->invalid_header && cscf->ignore_invalid_headers) {
|
|
52
|
785
|
|
|
786 /* there was error while a header line parsing */
|
|
|
787
|
|
|
788 header.len = r->header_end - r->header_name_start;
|
|
|
789 header.data = r->header_name_start;
|
|
|
790
|
|
54
|
791 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
|
792 "client sent invalid header line: \"%V\"",
|
|
52
|
793 &header);
|
|
|
794 continue;
|
|
|
795 }
|
|
|
796
|
|
0
|
797 /* a header line has been parsed successfully */
|
|
|
798
|
|
50
|
799 h = ngx_list_push(&r->headers_in.headers);
|
|
|
800 if (h == NULL) {
|
|
0
|
801 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
802 ngx_http_close_connection(c);
|
|
|
803 return;
|
|
|
804 }
|
|
|
805
|
|
56
|
806 h->hash = r->header_hash;
|
|
|
807
|
|
0
|
808 h->key.len = r->header_name_end - r->header_name_start;
|
|
|
809 h->key.data = r->header_name_start;
|
|
|
810 h->key.data[h->key.len] = '\0';
|
|
|
811
|
|
|
812 h->value.len = r->header_end - r->header_start;
|
|
|
813 h->value.data = r->header_start;
|
|
|
814 h->value.data[h->value.len] = '\0';
|
|
|
815
|
|
58
|
816 key = h->hash % cmcf->headers_in_hash.hash_size;
|
|
|
817
|
|
|
818 if (hh[key].name.len == h->key.len
|
|
|
819 && ngx_strcasecmp(hh[key].name.data, h->key.data) == 0)
|
|
0
|
820 {
|
|
58
|
821 if (hh[key].handler(r, h, hh[key].offset) != NGX_OK) {
|
|
0
|
822 return;
|
|
|
823 }
|
|
|
824 }
|
|
|
825
|
|
|
826 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
10
|
827 "http header: \"%V: %V\"",
|
|
|
828 &h->key, &h->value);
|
|
0
|
829
|
|
|
830 continue;
|
|
54
|
831 }
|
|
|
832
|
|
|
833 if (rc == NGX_HTTP_PARSE_HEADER_DONE) {
|
|
0
|
834
|
|
|
835 /* a whole header has been parsed successfully */
|
|
|
836
|
|
|
837 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
838 "http header done");
|
|
|
839
|
|
24
|
840 r->request_length += r->header_in->pos - r->header_in->start;
|
|
|
841
|
|
0
|
842 r->http_state = NGX_HTTP_PROCESS_REQUEST_STATE;
|
|
|
843
|
|
|
844 rc = ngx_http_process_request_header(r);
|
|
|
845
|
|
|
846 if (rc != NGX_OK) {
|
|
|
847 return;
|
|
|
848 }
|
|
|
849
|
|
|
850 if (rev->timer_set) {
|
|
|
851 ngx_del_timer(rev);
|
|
|
852 }
|
|
|
853
|
|
|
854 #if (NGX_STAT_STUB)
|
|
42
|
855 ngx_atomic_dec(ngx_stat_reading);
|
|
0
|
856 r->stat_reading = 0;
|
|
42
|
857 ngx_atomic_inc(ngx_stat_writing);
|
|
0
|
858 r->stat_writing = 1;
|
|
|
859 #endif
|
|
|
860
|
|
58
|
861 rev->handler = ngx_http_request_handler;
|
|
|
862 c->write->handler = ngx_http_request_handler;
|
|
|
863 r->read_event_handler = ngx_http_block_read;
|
|
|
864
|
|
0
|
865 ngx_http_handler(r);
|
|
|
866 return;
|
|
54
|
867 }
|
|
|
868
|
|
|
869 if (rc == NGX_AGAIN) {
|
|
|
870
|
|
|
871 /* a header line parsing is still not complete */
|
|
|
872
|
|
|
873 continue;
|
|
0
|
874 }
|
|
|
875
|
|
54
|
876 /* rc == NGX_HTTP_PARSE_INVALID_HEADER: "\r" is not followed by "\n" */
|
|
|
877
|
|
|
878 header.len = r->header_end - r->header_name_start;
|
|
|
879 header.data = r->header_name_start;
|
|
|
880 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
|
881 "client sent invalid header line: \"%V\\r...\"",
|
|
|
882 &header);
|
|
|
883 ngx_http_close_request(r, NGX_HTTP_BAD_REQUEST);
|
|
|
884 ngx_http_close_connection(c);
|
|
|
885 return;
|
|
0
|
886 }
|
|
|
887 }
|
|
|
888
|
|
|
889
|
|
50
|
890 static ssize_t
|
|
|
891 ngx_http_read_request_header(ngx_http_request_t *r)
|
|
0
|
892 {
|
|
|
893 ssize_t n;
|
|
|
894 ngx_event_t *rev;
|
|
|
895 ngx_http_core_srv_conf_t *cscf;
|
|
|
896
|
|
|
897 rev = r->connection->read;
|
|
|
898
|
|
|
899 n = r->header_in->last - r->header_in->pos;
|
|
|
900
|
|
|
901 if (n > 0) {
|
|
|
902 return n;
|
|
|
903 }
|
|
|
904
|
|
72
|
905 if (rev->ready) {
|
|
|
906 n = r->connection->recv(r->connection, r->header_in->last,
|
|
|
907 r->header_in->end - r->header_in->last);
|
|
|
908 } else {
|
|
|
909 n = NGX_AGAIN;
|
|
0
|
910 }
|
|
|
911
|
|
|
912 if (n == NGX_AGAIN) {
|
|
|
913 if (!r->header_timeout_set) {
|
|
|
914 cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
|
|
|
915 ngx_add_timer(rev, cscf->client_header_timeout);
|
|
|
916 r->header_timeout_set = 1;
|
|
|
917 }
|
|
|
918
|
|
|
919 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) {
|
|
|
920 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
921 ngx_http_close_connection(r->connection);
|
|
|
922 return NGX_ERROR;
|
|
|
923 }
|
|
|
924
|
|
|
925 return NGX_AGAIN;
|
|
|
926 }
|
|
|
927
|
|
|
928 if (n == 0) {
|
|
|
929 ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
|
|
|
930 "client closed prematurely connection");
|
|
|
931 }
|
|
|
932
|
|
|
933 if (n == 0 || n == NGX_ERROR) {
|
|
|
934 ngx_http_close_request(r, NGX_HTTP_BAD_REQUEST);
|
|
|
935 ngx_http_close_connection(r->connection);
|
|
|
936 return NGX_ERROR;
|
|
|
937 }
|
|
|
938
|
|
|
939 r->header_in->last += n;
|
|
|
940
|
|
|
941 return n;
|
|
|
942 }
|
|
|
943
|
|
|
944
|
|
50
|
945 static ngx_int_t
|
|
|
946 ngx_http_alloc_large_header_buffer(ngx_http_request_t *r,
|
|
|
947 ngx_uint_t request_line)
|
|
0
|
948 {
|
|
|
949 u_char *old, *new;
|
|
|
950 ngx_buf_t *b;
|
|
|
951 ngx_http_connection_t *hc;
|
|
|
952 ngx_http_core_srv_conf_t *cscf;
|
|
|
953
|
|
|
954 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
955 "http alloc large header buffer");
|
|
|
956
|
|
|
957 if (request_line && r->state == 0) {
|
|
|
958
|
|
|
959 /* the client fills up the buffer with "\r\n" */
|
|
|
960
|
|
24
|
961 r->request_length += r->header_in->end - r->header_in->start;
|
|
|
962
|
|
0
|
963 r->header_in->pos = r->header_in->start;
|
|
|
964 r->header_in->last = r->header_in->start;
|
|
|
965
|
|
|
966 return NGX_OK;
|
|
|
967 }
|
|
|
968
|
|
|
969 old = request_line ? r->request_start : r->header_name_start;
|
|
|
970
|
|
|
971 cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
|
|
|
972
|
|
|
973 if (r->state != 0
|
|
|
974 && (size_t) (r->header_in->pos - old)
|
|
|
975 >= cscf->large_client_header_buffers.size)
|
|
|
976 {
|
|
|
977 return NGX_DECLINED;
|
|
|
978 }
|
|
|
979
|
|
|
980 hc = r->http_connection;
|
|
|
981
|
|
|
982 if (hc->nfree) {
|
|
|
983 b = hc->free[--hc->nfree];
|
|
|
984
|
|
|
985 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
10
|
986 "http large header free: %p %uz",
|
|
0
|
987 b->pos, b->end - b->last);
|
|
|
988
|
|
|
989 } else if (hc->nbusy < cscf->large_client_header_buffers.num) {
|
|
|
990
|
|
|
991 if (hc->busy == NULL) {
|
|
|
992 hc->busy = ngx_palloc(r->connection->pool,
|
|
|
993 cscf->large_client_header_buffers.num * sizeof(ngx_buf_t *));
|
|
|
994 if (hc->busy == NULL) {
|
|
|
995 return NGX_ERROR;
|
|
|
996 }
|
|
|
997 }
|
|
|
998
|
|
|
999 b = ngx_create_temp_buf(r->connection->pool,
|
|
|
1000 cscf->large_client_header_buffers.size);
|
|
|
1001 if (b == NULL) {
|
|
|
1002 return NGX_ERROR;
|
|
|
1003 }
|
|
|
1004
|
|
|
1005 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
10
|
1006 "http large header alloc: %p %uz",
|
|
0
|
1007 b->pos, b->end - b->last);
|
|
|
1008
|
|
|
1009 } else {
|
|
|
1010 return NGX_DECLINED;
|
|
|
1011 }
|
|
|
1012
|
|
|
1013 hc->busy[hc->nbusy++] = b;
|
|
|
1014
|
|
|
1015 if (r->state == 0) {
|
|
|
1016 /*
|
|
|
1017 * r->state == 0 means that a header line was parsed successfully
|
|
|
1018 * and we do not need to copy incomplete header line and
|
|
|
1019 * to relocate the parser header pointers
|
|
|
1020 */
|
|
|
1021
|
|
24
|
1022 r->request_length += r->header_in->end - r->header_in->start;
|
|
|
1023
|
|
0
|
1024 r->header_in = b;
|
|
|
1025
|
|
|
1026 return NGX_OK;
|
|
|
1027 }
|
|
|
1028
|
|
|
1029 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1030 "http large header copy: %d", r->header_in->pos - old);
|
|
|
1031
|
|
24
|
1032 r->request_length += old - r->header_in->start;
|
|
|
1033
|
|
0
|
1034 new = b->start;
|
|
|
1035
|
|
|
1036 ngx_memcpy(new, old, r->header_in->pos - old);
|
|
|
1037
|
|
|
1038 b->pos = new + (r->header_in->pos - old);
|
|
|
1039 b->last = new + (r->header_in->pos - old);
|
|
|
1040
|
|
|
1041 if (request_line) {
|
|
|
1042 r->request_start = new;
|
|
|
1043
|
|
|
1044 if (r->request_end) {
|
|
|
1045 r->request_end = new + (r->request_end - old);
|
|
|
1046 }
|
|
|
1047
|
|
|
1048 r->method_end = new + (r->method_end - old);
|
|
|
1049
|
|
|
1050 r->uri_start = new + (r->uri_start - old);
|
|
|
1051 r->uri_end = new + (r->uri_end - old);
|
|
|
1052
|
|
|
1053 if (r->schema_start) {
|
|
|
1054 r->schema_start = new + (r->schema_start - old);
|
|
|
1055 r->schema_end = new + (r->schema_end - old);
|
|
|
1056 }
|
|
|
1057
|
|
|
1058 if (r->host_start) {
|
|
|
1059 r->host_start = new + (r->host_start - old);
|
|
|
1060 r->host_end = new + (r->host_end - old);
|
|
|
1061 }
|
|
|
1062
|
|
|
1063 if (r->port_start) {
|
|
|
1064 r->port_start = new + (r->port_start - old);
|
|
|
1065 r->port_end = new + (r->port_end - old);
|
|
|
1066 }
|
|
|
1067
|
|
|
1068 if (r->uri_ext) {
|
|
|
1069 r->uri_ext = new + (r->uri_ext - old);
|
|
|
1070 }
|
|
|
1071
|
|
|
1072 if (r->args_start) {
|
|
|
1073 r->args_start = new + (r->args_start - old);
|
|
|
1074 }
|
|
|
1075
|
|
|
1076 } else {
|
|
|
1077 r->header_name_start = new;
|
|
|
1078 r->header_name_end = new + (r->header_name_end - old);
|
|
|
1079 r->header_start = new + (r->header_start - old);
|
|
|
1080 r->header_end = new + (r->header_end - old);
|
|
|
1081 }
|
|
|
1082
|
|
|
1083 r->header_in = b;
|
|
|
1084
|
|
|
1085 return NGX_OK;
|
|
|
1086 }
|
|
|
1087
|
|
|
1088
|
|
50
|
1089 static ngx_int_t
|
|
58
|
1090 ngx_http_process_header_line(ngx_http_request_t *r, ngx_table_elt_t *h,
|
|
|
1091 ngx_uint_t offset)
|
|
|
1092 {
|
|
|
1093 ngx_table_elt_t **ph;
|
|
|
1094
|
|
|
1095 ph = (ngx_table_elt_t **) ((char *) &r->headers_in + offset);
|
|
|
1096
|
|
|
1097 if (*ph == NULL) {
|
|
|
1098 *ph = h;
|
|
|
1099 }
|
|
|
1100
|
|
|
1101 return NGX_OK;
|
|
|
1102 }
|
|
|
1103
|
|
|
1104
|
|
|
1105 static ngx_int_t
|
|
72
|
1106 ngx_http_process_unique_header_line(ngx_http_request_t *r, ngx_table_elt_t *h,
|
|
|
1107 ngx_uint_t offset)
|
|
|
1108 {
|
|
|
1109 ngx_table_elt_t **ph;
|
|
|
1110
|
|
|
1111 ph = (ngx_table_elt_t **) ((char *) &r->headers_in + offset);
|
|
|
1112
|
|
|
1113 if (*ph == NULL) {
|
|
|
1114 *ph = h;
|
|
|
1115 return NGX_OK;
|
|
|
1116 }
|
|
|
1117
|
|
|
1118 ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
|
|
|
1119 "client sent duplicate header line: \"%V: %V\"",
|
|
|
1120 &h->key, &h->value);
|
|
|
1121
|
|
|
1122 ngx_http_finalize_request(r, NGX_HTTP_BAD_REQUEST);
|
|
|
1123
|
|
|
1124 return NGX_ERROR;
|
|
|
1125 }
|
|
|
1126
|
|
|
1127
|
|
|
1128 static ngx_int_t
|
|
58
|
1129 ngx_http_process_cookie(ngx_http_request_t *r, ngx_table_elt_t *h,
|
|
|
1130 ngx_uint_t offset)
|
|
|
1131 {
|
|
|
1132 ngx_table_elt_t **cookie;
|
|
|
1133
|
|
|
1134 cookie = ngx_array_push(&r->headers_in.cookies);
|
|
72
|
1135 if (cookie) {
|
|
|
1136 *cookie = h;
|
|
|
1137 return NGX_OK;
|
|
58
|
1138 }
|
|
|
1139
|
|
72
|
1140 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
1141 ngx_http_close_connection(r->connection);
|
|
|
1142
|
|
|
1143 return NGX_ERROR;
|
|
58
|
1144 }
|
|
|
1145
|
|
|
1146
|
|
|
1147 static ngx_int_t
|
|
50
|
1148 ngx_http_process_request_header(ngx_http_request_t *r)
|
|
0
|
1149 {
|
|
54
|
1150 size_t len;
|
|
|
1151 u_char *ua, *user_agent, ch;
|
|
|
1152 ngx_http_core_srv_conf_t *cscf;
|
|
0
|
1153
|
|
|
1154 if (r->headers_in.host) {
|
|
|
1155 for (len = 0; len < r->headers_in.host->value.len; len++) {
|
|
26
|
1156 ch = r->headers_in.host->value.data[len];
|
|
|
1157
|
|
|
1158 if (ch == ':') {
|
|
0
|
1159 break;
|
|
|
1160 }
|
|
26
|
1161
|
|
|
1162 r->headers_in.host->value.data[len] = ngx_tolower(ch);
|
|
0
|
1163 }
|
|
54
|
1164
|
|
58
|
1165 if (r->headers_in.host->value.data[len - 1] == '.') {
|
|
|
1166 len--;
|
|
|
1167 }
|
|
|
1168
|
|
0
|
1169 r->headers_in.host_name_len = len;
|
|
|
1170
|
|
26
|
1171 if (ngx_http_find_virtual_server(r) != NGX_OK) {
|
|
54
|
1172 ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
|
|
|
1173 "client sent invalid \"Host\" header");
|
|
|
1174
|
|
|
1175 cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
|
|
|
1176
|
|
|
1177 if (cscf->restrict_host_names == NGX_HTTP_RESTRICT_HOST_CLOSE) {
|
|
|
1178 ngx_http_close_request(r, NGX_HTTP_BAD_REQUEST);
|
|
|
1179 ngx_http_close_connection(r->connection);
|
|
|
1180 return NGX_ERROR;
|
|
|
1181 }
|
|
|
1182
|
|
|
1183 ngx_http_finalize_request(r, NGX_HTTP_INVALID_HOST);
|
|
|
1184 return NGX_ERROR;
|
|
0
|
1185 }
|
|
|
1186
|
|
|
1187 } else {
|
|
|
1188 if (r->http_version > NGX_HTTP_VERSION_10) {
|
|
54
|
1189 ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
|
|
|
1190 "client sent HTTP/1.1 request without \"Host\" header");
|
|
|
1191 ngx_http_finalize_request(r, NGX_HTTP_BAD_REQUEST);
|
|
|
1192 return NGX_ERROR;
|
|
0
|
1193 }
|
|
54
|
1194
|
|
0
|
1195 r->headers_in.host_name_len = 0;
|
|
|
1196 }
|
|
|
1197
|
|
|
1198 if (r->headers_in.content_length) {
|
|
|
1199 r->headers_in.content_length_n =
|
|
50
|
1200 ngx_atosz(r->headers_in.content_length->value.data,
|
|
0
|
1201 r->headers_in.content_length->value.len);
|
|
|
1202
|
|
|
1203 if (r->headers_in.content_length_n == NGX_ERROR) {
|
|
54
|
1204 ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
|
|
|
1205 "client sent invalid \"Content-Length\" header");
|
|
|
1206 ngx_http_finalize_request(r, NGX_HTTP_BAD_REQUEST);
|
|
|
1207 return NGX_ERROR;
|
|
0
|
1208 }
|
|
|
1209 }
|
|
|
1210
|
|
32
|
1211 if (r->method == NGX_HTTP_POST && r->headers_in.content_length_n == -1) {
|
|
54
|
1212 ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
|
|
|
1213 "client sent POST method without \"Content-Length\" header");
|
|
|
1214 ngx_http_finalize_request(r, NGX_HTTP_BAD_REQUEST);
|
|
|
1215 return NGX_ERROR;
|
|
0
|
1216 }
|
|
|
1217
|
|
|
1218 if (r->plain_http) {
|
|
54
|
1219 ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
|
|
|
1220 "client sent plain HTTP request to HTTPS port");
|
|
|
1221 ngx_http_finalize_request(r, NGX_HTTP_TO_HTTPS);
|
|
|
1222 return NGX_ERROR;
|
|
0
|
1223 }
|
|
|
1224
|
|
|
1225 if (r->headers_in.connection) {
|
|
|
1226 if (r->headers_in.connection->value.len == 5
|
|
|
1227 && ngx_strcasecmp(r->headers_in.connection->value.data, "close")
|
|
58
|
1228 == 0)
|
|
0
|
1229 {
|
|
|
1230 r->headers_in.connection_type = NGX_HTTP_CONNECTION_CLOSE;
|
|
|
1231
|
|
|
1232 } else if (r->headers_in.connection->value.len == 10
|
|
|
1233 && ngx_strcasecmp(r->headers_in.connection->value.data,
|
|
58
|
1234 "keep-alive") == 0)
|
|
0
|
1235 {
|
|
|
1236 r->headers_in.connection_type = NGX_HTTP_CONNECTION_KEEP_ALIVE;
|
|
|
1237
|
|
|
1238 if (r->headers_in.keep_alive) {
|
|
|
1239 r->headers_in.keep_alive_n =
|
|
50
|
1240 ngx_atotm(r->headers_in.keep_alive->value.data,
|
|
0
|
1241 r->headers_in.keep_alive->value.len);
|
|
|
1242 }
|
|
|
1243 }
|
|
|
1244 }
|
|
|
1245
|
|
|
1246 if (r->headers_in.user_agent) {
|
|
|
1247
|
|
|
1248 /*
|
|
|
1249 * check some widespread browsers while the headers are still
|
|
|
1250 * in CPU cache
|
|
|
1251 */
|
|
|
1252
|
|
|
1253 user_agent = r->headers_in.user_agent->value.data;
|
|
|
1254
|
|
|
1255 ua = (u_char *) ngx_strstr(user_agent, "MSIE");
|
|
|
1256
|
|
|
1257 if (ua && ua + 8 < user_agent + r->headers_in.user_agent->value.len) {
|
|
|
1258
|
|
|
1259 r->headers_in.msie = 1;
|
|
|
1260
|
|
|
1261 if (ua[4] == ' ' && ua[5] == '4' && ua[6] == '.') {
|
|
|
1262 r->headers_in.msie4 = 1;
|
|
|
1263 }
|
|
|
1264
|
|
|
1265 #if 0
|
|
|
1266 /* MSIE ignores the SSL "close notify" alert */
|
|
22
|
1267 if (c->ssl) {
|
|
|
1268 r->connection->ssl->no_send_shut = 1;
|
|
|
1269 }
|
|
0
|
1270 #endif
|
|
|
1271 }
|
|
|
1272
|
|
|
1273 if (ngx_strstr(user_agent, "Opera")) {
|
|
|
1274 r->headers_in.opera = 1;
|
|
|
1275 r->headers_in.msie = 0;
|
|
|
1276 r->headers_in.msie4 = 0;
|
|
|
1277 }
|
|
|
1278
|
|
|
1279 if (!r->headers_in.msie && !r->headers_in.opera) {
|
|
|
1280
|
|
|
1281 if (ngx_strstr(user_agent, "Gecko/")) {
|
|
|
1282 r->headers_in.gecko = 1;
|
|
|
1283
|
|
|
1284 } else if (ngx_strstr(user_agent, "Konqueror")) {
|
|
|
1285 r->headers_in.konqueror = 1;
|
|
|
1286 }
|
|
|
1287 }
|
|
|
1288 }
|
|
|
1289
|
|
|
1290 return NGX_OK;
|
|
|
1291 }
|
|
|
1292
|
|
|
1293
|
|
50
|
1294 static ngx_int_t
|
|
|
1295 ngx_http_find_virtual_server(ngx_http_request_t *r)
|
|
26
|
1296 {
|
|
|
1297 ngx_int_t rc;
|
|
58
|
1298 ngx_uint_t i, n, key;
|
|
26
|
1299 ngx_http_server_name_t *name;
|
|
56
|
1300 ngx_http_core_loc_conf_t *clcf;
|
|
26
|
1301 ngx_http_core_srv_conf_t *cscf;
|
|
56
|
1302 ngx_http_core_main_conf_t *cmcf;
|
|
26
|
1303
|
|
|
1304 if (r->virtual_names->hash) {
|
|
|
1305 cmcf = ngx_http_get_module_main_conf(r, ngx_http_core_module);
|
|
|
1306
|
|
|
1307 ngx_http_server_names_hash_key(key,
|
|
|
1308 r->headers_in.host->value.data,
|
|
|
1309 r->headers_in.host_name_len,
|
|
|
1310 cmcf->server_names_hash);
|
|
|
1311
|
|
|
1312 name = r->virtual_names->hash[key].elts;
|
|
|
1313 n = r->virtual_names->hash[key].nelts;
|
|
|
1314
|
|
|
1315 } else {
|
|
|
1316 name = r->virtual_names->names.elts;
|
|
|
1317 n = r->virtual_names->names.nelts;
|
|
|
1318 }
|
|
|
1319
|
|
|
1320 for (i = 0; i < n; i++) {
|
|
|
1321
|
|
|
1322 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1323 "server name: %V", &name[i].name);
|
|
|
1324
|
|
|
1325 if (r->headers_in.host_name_len != name[i].name.len) {
|
|
|
1326 continue;
|
|
|
1327 }
|
|
|
1328
|
|
|
1329 rc = ngx_strncmp(r->headers_in.host->value.data,
|
|
|
1330 name[i].name.data, name[i].name.len);
|
|
|
1331
|
|
|
1332 if (rc == 0) {
|
|
|
1333 r->server_name = name[i].name;
|
|
58
|
1334 goto found;
|
|
26
|
1335 }
|
|
|
1336
|
|
|
1337 if (rc < 0) {
|
|
|
1338 /* the server names are lexicographically sorted */
|
|
|
1339 break;
|
|
|
1340 }
|
|
|
1341 }
|
|
|
1342
|
|
58
|
1343 if (r->virtual_names->wildcards.nelts) {
|
|
26
|
1344
|
|
|
1345 name = r->virtual_names->wildcards.elts;
|
|
|
1346 for (i = 0; i < r->virtual_names->wildcards.nelts; i++) {
|
|
|
1347
|
|
|
1348 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1349 "server name: %V", &name[i].name);
|
|
|
1350
|
|
|
1351 if (r->headers_in.host_name_len <= name[i].name.len) {
|
|
|
1352 continue;
|
|
|
1353 }
|
|
|
1354
|
|
|
1355 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1356 "server name: %s",
|
|
|
1357 r->headers_in.host->value.data
|
|
|
1358 + (r->headers_in.host_name_len - name[i].name.len));
|
|
|
1359
|
|
|
1360 if (ngx_strncmp(r->headers_in.host->value.data
|
|
|
1361 + (r->headers_in.host_name_len - name[i].name.len),
|
|
|
1362 name[i].name.data, name[i].name.len) == 0)
|
|
|
1363 {
|
|
|
1364 r->server_name.len = r->headers_in.host_name_len;
|
|
|
1365 r->server_name.data = r->headers_in.host->value.data;
|
|
|
1366
|
|
58
|
1367 goto found;
|
|
26
|
1368 }
|
|
|
1369 }
|
|
|
1370 }
|
|
|
1371
|
|
58
|
1372 cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
|
|
|
1373
|
|
|
1374 if (cscf->restrict_host_names == NGX_HTTP_RESTRICT_HOST_OFF) {
|
|
26
|
1375 return NGX_OK;
|
|
|
1376 }
|
|
|
1377
|
|
58
|
1378 return NGX_ERROR;
|
|
|
1379
|
|
|
1380 found:
|
|
|
1381
|
|
|
1382 r->srv_conf = name[i].core_srv_conf->ctx->srv_conf;
|
|
|
1383 r->loc_conf = name[i].core_srv_conf->ctx->loc_conf;
|
|
|
1384
|
|
|
1385 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
1386 r->connection->log->file = clcf->err_log->file;
|
|
|
1387
|
|
|
1388 if (!(r->connection->log->log_level & NGX_LOG_DEBUG_CONNECTION)) {
|
|
|
1389 r->connection->log->log_level = clcf->err_log->log_level;
|
|
26
|
1390 }
|
|
|
1391
|
|
|
1392 return NGX_OK;
|
|
|
1393 }
|
|
|
1394
|
|
|
1395
|
|
58
|
1396 static void
|
|
|
1397 ngx_http_request_handler(ngx_event_t *ev)
|
|
|
1398 {
|
|
|
1399 ngx_connection_t *c;
|
|
|
1400 ngx_http_request_t *r;
|
|
|
1401
|
|
|
1402 c = ev->data;
|
|
|
1403 r = c->data;
|
|
|
1404
|
|
|
1405 if (ev->write) {
|
|
|
1406 r->write_event_handler(r);
|
|
|
1407
|
|
|
1408 } else {
|
|
|
1409 r->read_event_handler(r);
|
|
|
1410 }
|
|
|
1411 }
|
|
|
1412
|
|
|
1413
|
|
50
|
1414 void
|
|
58
|
1415 ngx_http_finalize_request(ngx_http_request_t *r, ngx_int_t rc)
|
|
0
|
1416 {
|
|
58
|
1417 ngx_http_request_t *pr;
|
|
0
|
1418 ngx_http_core_loc_conf_t *clcf;
|
|
|
1419
|
|
58
|
1420 if (rc == NGX_DONE) {
|
|
|
1421 /* r may be already destroyed when rc == NGX_DONE */
|
|
|
1422 return;
|
|
|
1423 }
|
|
|
1424
|
|
|
1425 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1426 "http finalize request: %d, \"%V\"", rc, &r->uri);
|
|
|
1427
|
|
60
|
1428 if (r->parent
|
|
|
1429 && (rc >= NGX_HTTP_SPECIAL_RESPONSE || rc == NGX_HTTP_NO_CONTENT))
|
|
|
1430 {
|
|
58
|
1431 ngx_http_finalize_request(r, ngx_http_special_response_handler(r, rc));
|
|
0
|
1432 return;
|
|
|
1433 }
|
|
|
1434
|
|
58
|
1435 if (r->parent || rc == NGX_AGAIN) {
|
|
|
1436 r->write_event_handler = ngx_http_writer;
|
|
|
1437 }
|
|
|
1438
|
|
|
1439 r->done = 1;
|
|
|
1440
|
|
|
1441 if (r != r->connection->data) {
|
|
|
1442 return;
|
|
|
1443 }
|
|
|
1444
|
|
|
1445 if (r->parent) {
|
|
|
1446
|
|
|
1447 pr = r->parent;
|
|
|
1448
|
|
|
1449 if (rc != NGX_AGAIN) {
|
|
|
1450 pr->connection->data = pr;
|
|
|
1451 }
|
|
|
1452
|
|
|
1453 if (pr->postponed) {
|
|
|
1454
|
|
|
1455 if (rc != NGX_AGAIN && pr->postponed->request == r) {
|
|
|
1456 pr->postponed = pr->postponed->next;
|
|
|
1457
|
|
|
1458 if (pr->postponed == NULL) {
|
|
|
1459 return;
|
|
|
1460 }
|
|
|
1461 }
|
|
|
1462
|
|
|
1463 if (pr->done) {
|
|
|
1464 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1465 "http wake request: \"%V\"", &pr->uri);
|
|
|
1466
|
|
|
1467 pr->write_event_handler(pr);
|
|
|
1468 }
|
|
|
1469 }
|
|
|
1470
|
|
|
1471 return;
|
|
|
1472 }
|
|
0
|
1473
|
|
60
|
1474 if (rc >= NGX_HTTP_SPECIAL_RESPONSE || rc == NGX_HTTP_NO_CONTENT) {
|
|
0
|
1475
|
|
|
1476 if (r->connection->read->timer_set) {
|
|
|
1477 ngx_del_timer(r->connection->read);
|
|
|
1478 }
|
|
|
1479
|
|
|
1480 if (r->connection->write->timer_set) {
|
|
|
1481 ngx_del_timer(r->connection->write);
|
|
|
1482 }
|
|
|
1483
|
|
|
1484 if (rc == NGX_HTTP_CLIENT_CLOSED_REQUEST || r->closed) {
|
|
|
1485 ngx_http_close_request(r, 0);
|
|
|
1486 ngx_http_close_connection(r->connection);
|
|
|
1487 return;
|
|
|
1488 }
|
|
|
1489
|
|
|
1490 ngx_http_finalize_request(r, ngx_http_special_response_handler(r, rc));
|
|
|
1491
|
|
|
1492 return;
|
|
|
1493
|
|
|
1494 } else if (rc == NGX_ERROR) {
|
|
|
1495 ngx_http_close_request(r, 0);
|
|
|
1496 ngx_http_close_connection(r->connection);
|
|
|
1497 return;
|
|
|
1498
|
|
58
|
1499 } else if (rc == NGX_AGAIN || r->out) {
|
|
0
|
1500 ngx_http_set_write_handler(r);
|
|
|
1501 return;
|
|
|
1502 }
|
|
|
1503
|
|
|
1504 if (r->connection->read->timer_set) {
|
|
|
1505 ngx_del_timer(r->connection->read);
|
|
|
1506 }
|
|
|
1507
|
|
|
1508 if (r->connection->write->timer_set) {
|
|
|
1509 r->connection->write->delayed = 0;
|
|
|
1510 ngx_del_timer(r->connection->write);
|
|
|
1511 }
|
|
|
1512
|
|
|
1513 if (r->connection->read->pending_eof) {
|
|
22
|
1514 #if (NGX_HAVE_KQUEUE)
|
|
0
|
1515 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log,
|
|
|
1516 r->connection->read->kq_errno,
|
|
|
1517 "kevent() reported about an closed connection");
|
|
|
1518 #endif
|
|
|
1519 ngx_http_close_request(r, 0);
|
|
|
1520 ngx_http_close_connection(r->connection);
|
|
|
1521 return;
|
|
|
1522 }
|
|
|
1523
|
|
|
1524 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
1525
|
|
|
1526 if (!ngx_terminate
|
|
|
1527 && !ngx_exiting
|
|
|
1528 && r->keepalive != 0
|
|
|
1529 && clcf->keepalive_timeout > 0)
|
|
|
1530 {
|
|
|
1531 ngx_http_set_keepalive(r);
|
|
|
1532 return;
|
|
|
1533
|
|
|
1534 } else if (r->lingering_close && clcf->lingering_timeout > 0) {
|
|
|
1535 ngx_http_set_lingering_close(r);
|
|
|
1536 return;
|
|
|
1537 }
|
|
|
1538
|
|
|
1539 ngx_http_close_request(r, 0);
|
|
|
1540 ngx_http_close_connection(r->connection);
|
|
|
1541 }
|
|
|
1542
|
|
|
1543
|
|
50
|
1544 static void
|
|
|
1545 ngx_http_set_write_handler(ngx_http_request_t *r)
|
|
0
|
1546 {
|
|
|
1547 ngx_event_t *wev;
|
|
|
1548 ngx_http_core_loc_conf_t *clcf;
|
|
|
1549
|
|
58
|
1550 r->http_state = NGX_HTTP_WRITING_REQUEST_STATE;
|
|
|
1551
|
|
0
|
1552 wev = r->connection->write;
|
|
|
1553
|
|
|
1554 if (wev->ready && wev->delayed) {
|
|
|
1555 return;
|
|
|
1556 }
|
|
|
1557
|
|
58
|
1558 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
0
|
1559 if (!wev->delayed) {
|
|
|
1560 ngx_add_timer(wev, clcf->send_timeout);
|
|
|
1561 }
|
|
|
1562
|
|
2
|
1563 if (ngx_handle_write_event(wev, clcf->send_lowat) == NGX_ERROR) {
|
|
0
|
1564 ngx_http_close_request(r, 0);
|
|
|
1565 ngx_http_close_connection(r->connection);
|
|
|
1566 }
|
|
|
1567 }
|
|
|
1568
|
|
|
1569
|
|
58
|
1570 static void
|
|
|
1571 ngx_http_writer(ngx_http_request_t *r)
|
|
0
|
1572 {
|
|
|
1573 int rc;
|
|
58
|
1574 ngx_event_t *wev;
|
|
0
|
1575 ngx_connection_t *c;
|
|
|
1576 ngx_http_core_loc_conf_t *clcf;
|
|
|
1577
|
|
58
|
1578 c = r->connection;
|
|
|
1579 wev = c->write;
|
|
|
1580
|
|
|
1581 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, wev->log, 0,
|
|
|
1582 "http writer handler: \"%V\"", &r->uri);
|
|
0
|
1583
|
|
|
1584 if (wev->timedout) {
|
|
|
1585 if (!wev->delayed) {
|
|
54
|
1586 ngx_log_error(NGX_LOG_INFO, c->log, NGX_ETIMEDOUT,
|
|
|
1587 "client timed out");
|
|
|
1588 c->timedout = 1;
|
|
|
1589 ngx_http_close_request(r, NGX_HTTP_REQUEST_TIME_OUT);
|
|
|
1590 ngx_http_close_connection(c);
|
|
0
|
1591 return;
|
|
|
1592 }
|
|
|
1593
|
|
|
1594 wev->timedout = 0;
|
|
|
1595 wev->delayed = 0;
|
|
|
1596
|
|
|
1597 if (!wev->ready) {
|
|
|
1598 clcf = ngx_http_get_module_loc_conf(r->main ? r->main : r,
|
|
|
1599 ngx_http_core_module);
|
|
|
1600 ngx_add_timer(wev, clcf->send_timeout);
|
|
|
1601
|
|
2
|
1602 if (ngx_handle_write_event(wev, clcf->send_lowat) == NGX_ERROR) {
|
|
0
|
1603 ngx_http_close_request(r, 0);
|
|
|
1604 ngx_http_close_connection(r->connection);
|
|
|
1605 }
|
|
|
1606
|
|
|
1607 return;
|
|
|
1608 }
|
|
|
1609
|
|
|
1610 } else {
|
|
|
1611 if (wev->delayed) {
|
|
|
1612 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, wev->log, 0,
|
|
|
1613 "http writer delayed");
|
|
|
1614
|
|
|
1615 clcf = ngx_http_get_module_loc_conf(r->main ? r->main : r,
|
|
|
1616 ngx_http_core_module);
|
|
2
|
1617
|
|
|
1618 if (ngx_handle_write_event(wev, clcf->send_lowat) == NGX_ERROR) {
|
|
0
|
1619 ngx_http_close_request(r, 0);
|
|
|
1620 ngx_http_close_connection(r->connection);
|
|
|
1621 }
|
|
|
1622
|
|
|
1623 return;
|
|
|
1624 }
|
|
|
1625 }
|
|
|
1626
|
|
58
|
1627 if (r->postponed) {
|
|
|
1628 rc = ngx_http_postponed_handler(r);
|
|
|
1629
|
|
|
1630 if (rc == NGX_DONE) {
|
|
|
1631 /* r may be already destroyed when rc == NGX_DONE */
|
|
|
1632 return;
|
|
|
1633 }
|
|
|
1634
|
|
|
1635 } else {
|
|
|
1636 rc = ngx_http_output_filter(r, NULL);
|
|
|
1637
|
|
|
1638 }
|
|
|
1639
|
|
|
1640 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
|
1641 "http writer output filter: %d, \"%V\"", rc, &r->uri);
|
|
0
|
1642
|
|
|
1643 if (rc == NGX_AGAIN) {
|
|
|
1644 clcf = ngx_http_get_module_loc_conf(r->main ? r->main : r,
|
|
|
1645 ngx_http_core_module);
|
|
|
1646 if (!wev->ready && !wev->delayed) {
|
|
|
1647 ngx_add_timer(wev, clcf->send_timeout);
|
|
|
1648 }
|
|
|
1649
|
|
2
|
1650 if (ngx_handle_write_event(wev, clcf->send_lowat) == NGX_ERROR) {
|
|
0
|
1651 ngx_http_close_request(r, 0);
|
|
|
1652 ngx_http_close_connection(r->connection);
|
|
|
1653 }
|
|
|
1654
|
|
|
1655 return;
|
|
|
1656 }
|
|
|
1657
|
|
58
|
1658 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, wev->log, 0,
|
|
|
1659 "http writer done: \"%V\"", &r->uri);
|
|
0
|
1660
|
|
|
1661 ngx_http_finalize_request(r, rc);
|
|
|
1662 }
|
|
|
1663
|
|
|
1664
|
|
58
|
1665 static ngx_int_t
|
|
|
1666 ngx_http_postponed_handler(ngx_http_request_t *r)
|
|
|
1667 {
|
|
|
1668 ngx_int_t rc;
|
|
|
1669 ngx_http_postponed_request_t *pr;
|
|
|
1670
|
|
|
1671 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1672 "http postpone handler \"%V\"", &r->uri);
|
|
|
1673
|
|
|
1674 pr = r->postponed;
|
|
|
1675
|
|
|
1676 if (pr->request == NULL) {
|
|
|
1677 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1678 "http postponed data \"%V\" %p", &r->uri, pr->out);
|
|
|
1679
|
|
|
1680 rc = ngx_http_output_filter(r, NULL);
|
|
|
1681
|
|
|
1682 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1683 "http postponed output filter: %d", rc);
|
|
|
1684
|
|
|
1685 if (rc == NGX_AGAIN) {
|
|
|
1686 return rc;
|
|
|
1687 }
|
|
|
1688
|
|
|
1689 if (rc == NGX_ERROR) {
|
|
|
1690 /* NGX_ERROR may be returned by any filter */
|
|
|
1691 r->connection->write->error = 1;
|
|
|
1692
|
|
|
1693 ngx_http_finalize_request(r, rc);
|
|
|
1694
|
|
|
1695 return NGX_DONE;
|
|
|
1696 }
|
|
|
1697
|
|
|
1698 pr = r->postponed;
|
|
|
1699
|
|
|
1700 if (pr == NULL) {
|
|
|
1701 return NGX_OK;
|
|
|
1702 }
|
|
|
1703 }
|
|
|
1704
|
|
|
1705 r = pr->request;
|
|
|
1706 r->connection->data = r;
|
|
|
1707
|
|
|
1708 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1709 "http postponed request \"%V\"", &r->uri);
|
|
|
1710
|
|
|
1711 r->write_event_handler(r);
|
|
|
1712
|
|
|
1713 return NGX_DONE;
|
|
|
1714 }
|
|
|
1715
|
|
|
1716
|
|
50
|
1717 static void
|
|
58
|
1718 ngx_http_block_read(ngx_http_request_t *r)
|
|
0
|
1719 {
|
|
58
|
1720 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1721 "http read blocked");
|
|
0
|
1722
|
|
|
1723 /* aio does not call this handler */
|
|
|
1724
|
|
58
|
1725 if ((ngx_event_flags & NGX_USE_LEVEL_EVENT)
|
|
|
1726 && r->connection->read->active)
|
|
|
1727 {
|
|
|
1728 if (ngx_del_event(r->connection->read, NGX_READ_EVENT, 0)
|
|
|
1729 == NGX_ERROR)
|
|
|
1730 {
|
|
0
|
1731 ngx_http_close_request(r, 0);
|
|
58
|
1732 ngx_http_close_connection(r->connection);
|
|
0
|
1733 }
|
|
|
1734 }
|
|
|
1735 }
|
|
|
1736
|
|
|
1737
|
|
50
|
1738 ngx_int_t
|
|
|
1739 ngx_http_discard_body(ngx_http_request_t *r)
|
|
0
|
1740 {
|
|
|
1741 ssize_t size;
|
|
|
1742 ngx_event_t *rev;
|
|
|
1743
|
|
70
|
1744 if (r->main) {
|
|
|
1745 return NGX_OK;
|
|
|
1746 }
|
|
|
1747
|
|
0
|
1748 rev = r->connection->read;
|
|
|
1749
|
|
|
1750 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, rev->log, 0, "http set discard body");
|
|
|
1751
|
|
|
1752 if (rev->timer_set) {
|
|
|
1753 ngx_del_timer(rev);
|
|
|
1754 }
|
|
|
1755
|
|
|
1756 if (r->headers_in.content_length_n <= 0) {
|
|
|
1757 return NGX_OK;
|
|
|
1758 }
|
|
|
1759
|
|
|
1760 size = r->header_in->last - r->header_in->pos;
|
|
|
1761
|
|
|
1762 if (size) {
|
|
|
1763 if (r->headers_in.content_length_n > size) {
|
|
|
1764 r->headers_in.content_length_n -= size;
|
|
|
1765
|
|
|
1766 } else {
|
|
|
1767 r->header_in->pos += r->headers_in.content_length_n;
|
|
|
1768 r->headers_in.content_length_n = 0;
|
|
|
1769 return NGX_OK;
|
|
|
1770 }
|
|
|
1771 }
|
|
|
1772
|
|
58
|
1773 r->read_event_handler = ngx_http_read_discarded_body_handler;
|
|
|
1774
|
|
|
1775 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) {
|
|
0
|
1776 return NGX_HTTP_INTERNAL_SERVER_ERROR;
|
|
|
1777 }
|
|
|
1778
|
|
|
1779 return ngx_http_read_discarded_body(r);
|
|
|
1780 }
|
|
|
1781
|
|
|
1782
|
|
50
|
1783 static void
|
|
58
|
1784 ngx_http_read_discarded_body_handler(ngx_http_request_t *r)
|
|
0
|
1785 {
|
|
58
|
1786 ngx_int_t rc;
|
|
0
|
1787
|
|
|
1788 rc = ngx_http_read_discarded_body(r);
|
|
|
1789
|
|
|
1790 if (rc == NGX_AGAIN) {
|
|
58
|
1791 if (ngx_handle_read_event(r->connection->read, 0) == NGX_ERROR) {
|
|
0
|
1792 ngx_http_close_request(r, rc);
|
|
58
|
1793 ngx_http_close_connection(r->connection);
|
|
0
|
1794 return;
|
|
|
1795 }
|
|
|
1796 }
|
|
|
1797
|
|
|
1798 if (rc != NGX_OK) {
|
|
|
1799 ngx_http_close_request(r, rc);
|
|
58
|
1800 ngx_http_close_connection(r->connection);
|
|
0
|
1801 }
|
|
|
1802 }
|
|
|
1803
|
|
|
1804
|
|
50
|
1805 static ngx_int_t
|
|
|
1806 ngx_http_read_discarded_body(ngx_http_request_t *r)
|
|
0
|
1807 {
|
|
|
1808 ssize_t size, n;
|
|
|
1809 u_char buffer[NGX_HTTP_DISCARD_BUFFER_SIZE];
|
|
|
1810
|
|
|
1811 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1812 "http read discarded body");
|
|
|
1813
|
|
|
1814 if (r->headers_in.content_length_n == 0) {
|
|
|
1815 return NGX_OK;
|
|
|
1816 }
|
|
|
1817
|
|
|
1818
|
|
|
1819 size = r->headers_in.content_length_n;
|
|
|
1820
|
|
|
1821 if (size > NGX_HTTP_DISCARD_BUFFER_SIZE) {
|
|
|
1822 size = NGX_HTTP_DISCARD_BUFFER_SIZE;
|
|
|
1823 }
|
|
|
1824
|
|
|
1825 n = r->connection->recv(r->connection, buffer, size);
|
|
|
1826
|
|
|
1827 if (n == NGX_ERROR) {
|
|
|
1828
|
|
|
1829 r->closed = 1;
|
|
|
1830
|
|
|
1831 /*
|
|
|
1832 * if a client request body is discarded then we already set
|
|
|
1833 * some HTTP response code for client and we can ignore the error
|
|
|
1834 */
|
|
|
1835
|
|
|
1836 return NGX_OK;
|
|
|
1837 }
|
|
|
1838
|
|
|
1839 if (n == NGX_AGAIN) {
|
|
|
1840 return NGX_AGAIN;
|
|
|
1841 }
|
|
|
1842
|
|
|
1843 r->headers_in.content_length_n -= n;
|
|
|
1844
|
|
|
1845 return NGX_OK;
|
|
|
1846 }
|
|
|
1847
|
|
|
1848
|
|
50
|
1849 static void
|
|
|
1850 ngx_http_set_keepalive(ngx_http_request_t *r)
|
|
0
|
1851 {
|
|
2
|
1852 int tcp_nodelay;
|
|
0
|
1853 ngx_int_t i;
|
|
|
1854 ngx_buf_t *b, *f;
|
|
|
1855 ngx_event_t *rev, *wev;
|
|
|
1856 ngx_connection_t *c;
|
|
|
1857 ngx_http_connection_t *hc;
|
|
|
1858 ngx_http_core_srv_conf_t *cscf;
|
|
|
1859 ngx_http_core_loc_conf_t *clcf;
|
|
|
1860
|
|
|
1861 c = r->connection;
|
|
|
1862 rev = c->read;
|
|
|
1863
|
|
|
1864 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "set http keepalive handler");
|
|
|
1865
|
|
32
|
1866 c->log->action = "closing request";
|
|
0
|
1867
|
|
|
1868 hc = r->http_connection;
|
|
|
1869 b = r->header_in;
|
|
|
1870
|
|
|
1871 if (b->pos < b->last) {
|
|
|
1872
|
|
|
1873 /* the pipelined request */
|
|
|
1874
|
|
|
1875 if (b != c->buffer) {
|
|
|
1876
|
|
4
|
1877 /*
|
|
|
1878 * If the large header buffers were allocated while the previous
|
|
|
1879 * request processing then we do not use c->buffer for
|
|
|
1880 * the pipelined request (see ngx_http_init_request()).
|
|
|
1881 *
|
|
|
1882 * Now we would move the large header buffers to the free list.
|
|
|
1883 */
|
|
0
|
1884
|
|
|
1885 cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
|
|
|
1886
|
|
|
1887 if (hc->free == NULL) {
|
|
|
1888 hc->free = ngx_palloc(c->pool,
|
|
|
1889 cscf->large_client_header_buffers.num * sizeof(ngx_buf_t *));
|
|
|
1890
|
|
|
1891 if (hc->free == NULL) {
|
|
26
|
1892 ngx_http_close_request(r, 0);
|
|
0
|
1893 ngx_http_close_connection(c);
|
|
|
1894 return;
|
|
|
1895 }
|
|
|
1896 }
|
|
|
1897
|
|
|
1898 for (i = 0; i < hc->nbusy - 1; i++) {
|
|
|
1899 f = hc->busy[i];
|
|
|
1900 hc->free[hc->nfree++] = f;
|
|
|
1901 f->pos = f->start;
|
|
|
1902 f->last = f->start;
|
|
|
1903 }
|
|
|
1904
|
|
|
1905 hc->busy[0] = b;
|
|
|
1906 hc->nbusy = 1;
|
|
|
1907 }
|
|
|
1908 }
|
|
|
1909
|
|
26
|
1910 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
1911
|
|
0
|
1912 ngx_http_close_request(r, 0);
|
|
|
1913 c->data = hc;
|
|
|
1914
|
|
|
1915 ngx_add_timer(rev, clcf->keepalive_timeout);
|
|
|
1916
|
|
58
|
1917 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) {
|
|
0
|
1918 ngx_http_close_connection(c);
|
|
|
1919 return;
|
|
|
1920 }
|
|
|
1921
|
|
|
1922 wev = c->write;
|
|
58
|
1923 wev->handler = ngx_http_empty_handler;
|
|
0
|
1924
|
|
|
1925 if (b->pos < b->last) {
|
|
|
1926
|
|
|
1927 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "pipelined request");
|
|
|
1928
|
|
|
1929 hc->pipeline = 1;
|
|
32
|
1930 c->log->action = "reading client pipelined request line";
|
|
0
|
1931 ngx_http_init_request(rev);
|
|
|
1932 return;
|
|
|
1933 }
|
|
|
1934
|
|
|
1935 hc->pipeline = 0;
|
|
|
1936
|
|
4
|
1937 /*
|
|
|
1938 * To keep a memory footprint as small as possible for an idle
|
|
|
1939 * keepalive connection we try to free the ngx_http_request_t and
|
|
|
1940 * c->buffer's memory if they were allocated outside the c->pool.
|
|
|
1941 * The large header buffers are always allocated outside the c->pool and
|
|
|
1942 * are freed too.
|
|
|
1943 */
|
|
|
1944
|
|
0
|
1945 if (ngx_pfree(c->pool, r) == NGX_OK) {
|
|
|
1946 hc->request = NULL;
|
|
|
1947 }
|
|
|
1948
|
|
|
1949 b = c->buffer;
|
|
|
1950
|
|
|
1951 if (ngx_pfree(c->pool, b->start) == NGX_OK) {
|
|
4
|
1952
|
|
|
1953 /*
|
|
|
1954 * the special note for ngx_http_keepalive_handler() that
|
|
|
1955 * c->buffer's memory was freed
|
|
|
1956 */
|
|
|
1957
|
|
0
|
1958 b->pos = NULL;
|
|
|
1959
|
|
|
1960 } else {
|
|
|
1961 b->pos = b->start;
|
|
|
1962 b->last = b->start;
|
|
|
1963 }
|
|
|
1964
|
|
10
|
1965 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, c->log, 0, "hc free: %p %d",
|
|
0
|
1966 hc->free, hc->nfree);
|
|
|
1967
|
|
|
1968 if (hc->free) {
|
|
|
1969 for (i = 0; i < hc->nfree; i++) {
|
|
|
1970 ngx_pfree(c->pool, hc->free[i]);
|
|
|
1971 hc->free[i] = NULL;
|
|
|
1972 }
|
|
|
1973
|
|
|
1974 hc->nfree = 0;
|
|
|
1975 }
|
|
|
1976
|
|
10
|
1977 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, c->log, 0, "hc busy: %p %d",
|
|
0
|
1978 hc->busy, hc->nbusy);
|
|
|
1979
|
|
|
1980 if (hc->busy) {
|
|
|
1981 for (i = 0; i < hc->nbusy; i++) {
|
|
|
1982 ngx_pfree(c->pool, hc->busy[i]);
|
|
|
1983 hc->busy[i] = NULL;
|
|
|
1984 }
|
|
|
1985
|
|
|
1986 hc->nbusy = 0;
|
|
|
1987 }
|
|
|
1988
|
|
58
|
1989 rev->handler = ngx_http_keepalive_handler;
|
|
0
|
1990
|
|
|
1991 if (wev->active) {
|
|
4
|
1992 if (ngx_event_flags & NGX_USE_KQUEUE_EVENT) {
|
|
0
|
1993 if (ngx_del_event(wev, NGX_WRITE_EVENT, NGX_DISABLE_EVENT)
|
|
|
1994 == NGX_ERROR)
|
|
|
1995 {
|
|
|
1996 ngx_http_close_connection(c);
|
|
|
1997 return;
|
|
|
1998 }
|
|
|
1999
|
|
|
2000 } else if (ngx_event_flags & NGX_USE_LEVEL_EVENT) {
|
|
|
2001 if (ngx_del_event(wev, NGX_WRITE_EVENT, 0) == NGX_ERROR) {
|
|
|
2002 ngx_http_close_connection(c);
|
|
|
2003 return;
|
|
|
2004 }
|
|
|
2005 }
|
|
|
2006 }
|
|
|
2007
|
|
32
|
2008 c->log->action = "keepalive";
|
|
0
|
2009
|
|
|
2010 if (c->tcp_nopush == NGX_TCP_NOPUSH_SET) {
|
|
50
|
2011 if (ngx_tcp_push(c->fd) == -1) {
|
|
0
|
2012 ngx_connection_error(c, ngx_socket_errno, ngx_tcp_push_n " failed");
|
|
|
2013 ngx_http_close_connection(c);
|
|
|
2014 return;
|
|
|
2015 }
|
|
2
|
2016
|
|
0
|
2017 c->tcp_nopush = NGX_TCP_NOPUSH_UNSET;
|
|
22
|
2018 tcp_nodelay = ngx_tcp_nodelay_and_tcp_nopush ? 1 : 0;
|
|
2
|
2019
|
|
|
2020 } else {
|
|
22
|
2021 tcp_nodelay = 1;
|
|
|
2022 }
|
|
|
2023
|
|
32
|
2024 if (tcp_nodelay
|
|
|
2025 && clcf->tcp_nodelay
|
|
|
2026 && c->tcp_nodelay == NGX_TCP_NODELAY_UNSET)
|
|
|
2027 {
|
|
22
|
2028 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "tcp_nodelay");
|
|
|
2029
|
|
|
2030 if (setsockopt(c->fd, IPPROTO_TCP, TCP_NODELAY,
|
|
|
2031 (const void *) &tcp_nodelay, sizeof(int)) == -1)
|
|
|
2032 {
|
|
|
2033 ngx_connection_error(c, ngx_socket_errno,
|
|
|
2034 "setsockopt(TCP_NODELAY) failed");
|
|
|
2035 ngx_http_close_connection(c);
|
|
|
2036 return;
|
|
2
|
2037 }
|
|
22
|
2038
|
|
32
|
2039 c->tcp_nodelay = NGX_TCP_NODELAY_SET;
|
|
0
|
2040 }
|
|
|
2041
|
|
|
2042 #if 0
|
|
4
|
2043 /* if ngx_http_request_t was freed then we need some other place */
|
|
0
|
2044 r->http_state = NGX_HTTP_KEEPALIVE_STATE;
|
|
|
2045 #endif
|
|
|
2046
|
|
|
2047 if (rev->ready) {
|
|
|
2048 ngx_http_keepalive_handler(rev);
|
|
|
2049 }
|
|
|
2050 }
|
|
|
2051
|
|
|
2052
|
|
50
|
2053 static void
|
|
|
2054 ngx_http_keepalive_handler(ngx_event_t *rev)
|
|
0
|
2055 {
|
|
50
|
2056 size_t size;
|
|
|
2057 ssize_t n;
|
|
|
2058 ngx_buf_t *b;
|
|
|
2059 ngx_connection_t *c;
|
|
0
|
2060
|
|
|
2061 c = rev->data;
|
|
|
2062
|
|
|
2063 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "http keepalive handler");
|
|
|
2064
|
|
|
2065 if (rev->timedout) {
|
|
|
2066 ngx_http_close_connection(c);
|
|
|
2067 return;
|
|
|
2068 }
|
|
|
2069
|
|
18
|
2070 #if (NGX_HAVE_KQUEUE)
|
|
0
|
2071
|
|
4
|
2072 if (ngx_event_flags & NGX_USE_KQUEUE_EVENT) {
|
|
0
|
2073 if (rev->pending_eof) {
|
|
32
|
2074 c->log->handler = NULL;
|
|
0
|
2075 ngx_log_error(NGX_LOG_INFO, c->log, rev->kq_errno,
|
|
10
|
2076 "kevent() reported that client %V closed "
|
|
32
|
2077 "keepalive connection", &c->addr_text);
|
|
22
|
2078 #if (NGX_HTTP_SSL)
|
|
|
2079 if (c->ssl) {
|
|
|
2080 c->ssl->no_send_shut = 1;
|
|
|
2081 }
|
|
|
2082 #endif
|
|
0
|
2083 ngx_http_close_connection(c);
|
|
|
2084 return;
|
|
|
2085 }
|
|
|
2086 }
|
|
|
2087
|
|
|
2088 #endif
|
|
|
2089
|
|
|
2090 b = c->buffer;
|
|
|
2091 size = b->end - b->start;
|
|
|
2092
|
|
|
2093 if (b->pos == NULL) {
|
|
4
|
2094
|
|
|
2095 /*
|
|
|
2096 * The c->buffer's memory was freed by ngx_http_set_keepalive().
|
|
|
2097 * However, the c->buffer->start and c->buffer->end were not changed
|
|
|
2098 * to keep the buffer size.
|
|
|
2099 */
|
|
|
2100
|
|
50
|
2101 b->pos = ngx_palloc(c->pool, size);
|
|
|
2102 if (b->pos == NULL) {
|
|
0
|
2103 ngx_http_close_connection(c);
|
|
|
2104 return;
|
|
|
2105 }
|
|
|
2106
|
|
|
2107 b->start = b->pos;
|
|
|
2108 b->last = b->pos;
|
|
|
2109 b->end = b->pos + size;
|
|
|
2110 }
|
|
|
2111
|
|
|
2112 /*
|
|
|
2113 * MSIE closes a keepalive connection with RST flag
|
|
|
2114 * so we ignore ECONNRESET here.
|
|
|
2115 */
|
|
|
2116
|
|
|
2117 c->log_error = NGX_ERROR_IGNORE_ECONNRESET;
|
|
|
2118 ngx_set_socket_errno(0);
|
|
|
2119
|
|
|
2120 n = c->recv(c, b->last, size);
|
|
|
2121 c->log_error = NGX_ERROR_INFO;
|
|
|
2122
|
|
|
2123 if (n == NGX_AGAIN) {
|
|
58
|
2124 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) {
|
|
24
|
2125 ngx_http_close_connection(c);
|
|
|
2126 }
|
|
|
2127
|
|
0
|
2128 return;
|
|
|
2129 }
|
|
|
2130
|
|
|
2131 if (n == NGX_ERROR) {
|
|
|
2132 ngx_http_close_connection(c);
|
|
|
2133 return;
|
|
|
2134 }
|
|
|
2135
|
|
32
|
2136 c->log->handler = NULL;
|
|
0
|
2137
|
|
|
2138 if (n == 0) {
|
|
|
2139 ngx_log_error(NGX_LOG_INFO, c->log, ngx_socket_errno,
|
|
32
|
2140 "client %V closed keepalive connection", &c->addr_text);
|
|
0
|
2141 ngx_http_close_connection(c);
|
|
|
2142 return;
|
|
|
2143 }
|
|
|
2144
|
|
|
2145 b->last += n;
|
|
32
|
2146
|
|
|
2147 c->log->handler = ngx_http_log_error;
|
|
|
2148 c->log->action = "reading client request line";
|
|
0
|
2149
|
|
|
2150 ngx_http_init_request(rev);
|
|
|
2151 }
|
|
|
2152
|
|
|
2153
|
|
50
|
2154 static void
|
|
|
2155 ngx_http_set_lingering_close(ngx_http_request_t *r)
|
|
0
|
2156 {
|
|
|
2157 ngx_event_t *rev, *wev;
|
|
|
2158 ngx_connection_t *c;
|
|
|
2159 ngx_http_core_loc_conf_t *clcf;
|
|
|
2160
|
|
|
2161 c = r->connection;
|
|
|
2162
|
|
|
2163 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
2164
|
|
|
2165 rev = c->read;
|
|
58
|
2166 rev->handler = ngx_http_lingering_close_handler;
|
|
0
|
2167
|
|
|
2168 r->lingering_time = ngx_time() + clcf->lingering_time / 1000;
|
|
|
2169 ngx_add_timer(rev, clcf->lingering_timeout);
|
|
|
2170
|
|
58
|
2171 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) {
|
|
0
|
2172 ngx_http_close_request(r, 0);
|
|
|
2173 ngx_http_close_connection(c);
|
|
|
2174 return;
|
|
|
2175 }
|
|
|
2176
|
|
|
2177 wev = c->write;
|
|
58
|
2178 wev->handler = ngx_http_empty_handler;
|
|
0
|
2179
|
|
|
2180 if (wev->active) {
|
|
4
|
2181 if (ngx_event_flags & NGX_USE_KQUEUE_EVENT) {
|
|
0
|
2182 if (ngx_del_event(wev, NGX_WRITE_EVENT, NGX_DISABLE_EVENT)
|
|
|
2183 == NGX_ERROR)
|
|
|
2184 {
|
|
26
|
2185 ngx_http_close_request(r, 0);
|
|
0
|
2186 ngx_http_close_connection(c);
|
|
|
2187 return;
|
|
|
2188 }
|
|
|
2189
|
|
|
2190 } else if (ngx_event_flags & NGX_USE_LEVEL_EVENT) {
|
|
|
2191 if (ngx_del_event(wev, NGX_WRITE_EVENT, 0) == NGX_ERROR) {
|
|
26
|
2192 ngx_http_close_request(r, 0);
|
|
0
|
2193 ngx_http_close_connection(c);
|
|
|
2194 return;
|
|
|
2195 }
|
|
|
2196 }
|
|
|
2197 }
|
|
|
2198
|
|
|
2199 if (ngx_shutdown_socket(c->fd, NGX_WRITE_SHUTDOWN) == -1) {
|
|
|
2200 ngx_connection_error(c, ngx_socket_errno,
|
|
|
2201 ngx_shutdown_socket_n " failed");
|
|
|
2202 ngx_http_close_request(r, 0);
|
|
|
2203 ngx_http_close_connection(c);
|
|
|
2204 return;
|
|
|
2205 }
|
|
|
2206
|
|
|
2207 if (rev->ready) {
|
|
|
2208 ngx_http_lingering_close_handler(rev);
|
|
|
2209 }
|
|
|
2210 }
|
|
|
2211
|
|
|
2212
|
|
50
|
2213 static void
|
|
|
2214 ngx_http_lingering_close_handler(ngx_event_t *rev)
|
|
0
|
2215 {
|
|
|
2216 ssize_t n;
|
|
|
2217 ngx_msec_t timer;
|
|
|
2218 ngx_connection_t *c;
|
|
|
2219 ngx_http_request_t *r;
|
|
|
2220 ngx_http_core_loc_conf_t *clcf;
|
|
|
2221 u_char buffer[NGX_HTTP_LINGERING_BUFFER_SIZE];
|
|
|
2222
|
|
|
2223 c = rev->data;
|
|
|
2224 r = c->data;
|
|
|
2225
|
|
|
2226 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
|
2227 "http lingering close handler");
|
|
|
2228
|
|
|
2229 if (rev->timedout) {
|
|
|
2230 ngx_http_close_request(r, 0);
|
|
|
2231 ngx_http_close_connection(c);
|
|
|
2232 return;
|
|
|
2233 }
|
|
|
2234
|
|
|
2235 timer = r->lingering_time - ngx_time();
|
|
|
2236 if (timer <= 0) {
|
|
|
2237 ngx_http_close_request(r, 0);
|
|
|
2238 ngx_http_close_connection(c);
|
|
|
2239 return;
|
|
|
2240 }
|
|
|
2241
|
|
|
2242 do {
|
|
|
2243 n = c->recv(c, buffer, NGX_HTTP_LINGERING_BUFFER_SIZE);
|
|
|
2244
|
|
|
2245 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0, "lingering read: %d", n);
|
|
|
2246
|
|
|
2247 if (n == NGX_ERROR || n == 0) {
|
|
|
2248 ngx_http_close_request(r, 0);
|
|
|
2249 ngx_http_close_connection(c);
|
|
|
2250 return;
|
|
|
2251 }
|
|
|
2252
|
|
|
2253 } while (rev->ready);
|
|
|
2254
|
|
58
|
2255 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) {
|
|
26
|
2256 ngx_http_close_request(r, 0);
|
|
24
|
2257 ngx_http_close_connection(c);
|
|
|
2258 return;
|
|
|
2259 }
|
|
|
2260
|
|
0
|
2261 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
2262
|
|
|
2263 timer *= 1000;
|
|
|
2264
|
|
|
2265 if (timer > clcf->lingering_timeout) {
|
|
|
2266 timer = clcf->lingering_timeout;
|
|
|
2267 }
|
|
|
2268
|
|
|
2269 ngx_add_timer(rev, timer);
|
|
|
2270 }
|
|
|
2271
|
|
|
2272
|
|
50
|
2273 void
|
|
|
2274 ngx_http_empty_handler(ngx_event_t *wev)
|
|
0
|
2275 {
|
|
|
2276 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, wev->log, 0, "http empty handler");
|
|
|
2277
|
|
|
2278 return;
|
|
|
2279 }
|
|
|
2280
|
|
|
2281
|
|
58
|
2282 void
|
|
|
2283 ngx_http_request_empty_handler(ngx_http_request_t *r)
|
|
|
2284 {
|
|
|
2285 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
2286 "http requets empty handler");
|
|
|
2287
|
|
|
2288 return;
|
|
|
2289 }
|
|
|
2290
|
|
|
2291
|
|
50
|
2292 ngx_int_t
|
|
|
2293 ngx_http_send_last(ngx_http_request_t *r)
|
|
0
|
2294 {
|
|
|
2295 ngx_buf_t *b;
|
|
|
2296 ngx_chain_t out;
|
|
|
2297
|
|
50
|
2298 b = ngx_calloc_buf(r->pool);
|
|
|
2299 if (b == NULL) {
|
|
0
|
2300 return NGX_ERROR;
|
|
|
2301 }
|
|
|
2302
|
|
|
2303 b->last_buf = 1;
|
|
|
2304 out.buf = b;
|
|
|
2305 out.next = NULL;
|
|
|
2306
|
|
|
2307 return ngx_http_output_filter(r, &out);
|
|
|
2308 }
|
|
|
2309
|
|
|
2310
|
|
50
|
2311 void
|
|
58
|
2312 ngx_http_close_request(ngx_http_request_t *r, ngx_int_t error)
|
|
0
|
2313 {
|
|
|
2314 ngx_log_t *log;
|
|
58
|
2315 struct linger linger;
|
|
0
|
2316 ngx_http_log_ctx_t *ctx;
|
|
|
2317 ngx_http_core_loc_conf_t *clcf;
|
|
|
2318
|
|
|
2319 log = r->connection->log;
|
|
|
2320
|
|
|
2321 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, log, 0, "http close request");
|
|
|
2322
|
|
|
2323 if (r->pool == NULL) {
|
|
|
2324 ngx_log_error(NGX_LOG_ALERT, log, 0,
|
|
|
2325 "http request already closed");
|
|
|
2326 return;
|
|
|
2327 }
|
|
|
2328
|
|
|
2329 #if (NGX_STAT_STUB)
|
|
|
2330 if (r->stat_reading) {
|
|
42
|
2331 ngx_atomic_dec(ngx_stat_reading);
|
|
0
|
2332 }
|
|
|
2333
|
|
|
2334 if (r->stat_writing) {
|
|
42
|
2335 ngx_atomic_dec(ngx_stat_writing);
|
|
0
|
2336 }
|
|
|
2337 #endif
|
|
|
2338
|
|
|
2339 if (error && r->headers_out.status == 0) {
|
|
|
2340 r->headers_out.status = error;
|
|
|
2341 }
|
|
|
2342
|
|
|
2343 ngx_http_log_handler(r);
|
|
|
2344
|
|
|
2345 if (r->connection->timedout) {
|
|
|
2346 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
2347
|
|
|
2348 if (clcf->reset_timedout_connection) {
|
|
58
|
2349 linger.l_onoff = 1;
|
|
|
2350 linger.l_linger = 0;
|
|
0
|
2351
|
|
|
2352 if (setsockopt(r->connection->fd, SOL_SOCKET, SO_LINGER,
|
|
58
|
2353 (const void *) &linger, sizeof(struct linger)) == -1)
|
|
0
|
2354 {
|
|
|
2355 ngx_log_error(NGX_LOG_ALERT, log, ngx_socket_errno,
|
|
|
2356 "setsockopt(SO_LINGER) failed");
|
|
|
2357 }
|
|
|
2358 }
|
|
|
2359 }
|
|
|
2360
|
|
58
|
2361 /* the various request strings were allocated from r->pool */
|
|
0
|
2362 ctx = log->data;
|
|
10
|
2363 ctx->request = NULL;
|
|
0
|
2364
|
|
|
2365 r->request_line.len = 0;
|
|
|
2366
|
|
|
2367 ngx_destroy_pool(r->pool);
|
|
|
2368 }
|
|
|
2369
|
|
|
2370
|
|
|
2371 #if (NGX_HTTP_SSL)
|
|
|
2372
|
|
50
|
2373 void
|
|
|
2374 ngx_ssl_close_handler(ngx_event_t *ev)
|
|
0
|
2375 {
|
|
|
2376 ngx_connection_t *c;
|
|
|
2377
|
|
|
2378 c = ev->data;
|
|
|
2379
|
|
|
2380 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, ev->log, 0, "http ssl close handler");
|
|
|
2381
|
|
|
2382 if (ngx_ssl_shutdown(c) == NGX_AGAIN) {
|
|
|
2383 return;
|
|
|
2384 }
|
|
|
2385
|
|
|
2386 ngx_http_close_connection(c);
|
|
|
2387 }
|
|
|
2388
|
|
|
2389 #endif
|
|
|
2390
|
|
|
2391
|
|
50
|
2392 void
|
|
|
2393 ngx_http_close_connection(ngx_connection_t *c)
|
|
0
|
2394 {
|
|
28
|
2395 ngx_pool_t *pool;
|
|
|
2396
|
|
0
|
2397 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
|
2398 "close http connection: %d", c->fd);
|
|
|
2399
|
|
2
|
2400 #if (NGX_OPENSSL)
|
|
|
2401
|
|
|
2402 if (c->ssl) {
|
|
|
2403 if (ngx_ssl_shutdown(c) == NGX_AGAIN) {
|
|
58
|
2404 c->read->handler = ngx_ssl_close_handler;
|
|
|
2405 c->write->handler = ngx_ssl_close_handler;
|
|
2
|
2406 return;
|
|
|
2407 }
|
|
|
2408 }
|
|
|
2409
|
|
|
2410 #endif
|
|
|
2411
|
|
0
|
2412 #if (NGX_STAT_STUB)
|
|
42
|
2413 ngx_atomic_dec(ngx_stat_active);
|
|
0
|
2414 #endif
|
|
|
2415
|
|
28
|
2416 pool = c->pool;
|
|
|
2417
|
|
0
|
2418 ngx_close_connection(c);
|
|
28
|
2419
|
|
50
|
2420 ngx_destroy_pool(pool);
|
|
0
|
2421 }
|
|
|
2422
|
|
|
2423
|
|
50
|
2424 static u_char *
|
|
|
2425 ngx_http_log_error(ngx_log_t *log, u_char *buf, size_t len)
|
|
0
|
2426 {
|
|
32
|
2427 u_char *p;
|
|
54
|
2428 ngx_http_request_t *r;
|
|
32
|
2429 ngx_http_log_ctx_t *ctx;
|
|
10
|
2430
|
|
32
|
2431 if (log->action) {
|
|
58
|
2432 p = ngx_snprintf(buf, len, " while %s", log->action);
|
|
10
|
2433 len -= p - buf;
|
|
54
|
2434 buf = p;
|
|
10
|
2435 }
|
|
|
2436
|
|
58
|
2437 ctx = log->data;
|
|
|
2438
|
|
54
|
2439 p = ngx_snprintf(buf, len, ", client: %V", ctx->client);
|
|
58
|
2440 len -= p - buf;
|
|
54
|
2441
|
|
|
2442 r = ctx->request;
|
|
|
2443
|
|
58
|
2444 if (r) {
|
|
|
2445 return r->log_handler(r, p, len);
|
|
0
|
2446 }
|
|
10
|
2447
|
|
58
|
2448 return p;
|
|
|
2449 }
|
|
|
2450
|
|
|
2451
|
|
|
2452 static u_char *
|
|
|
2453 ngx_http_log_error_handler(ngx_http_request_t *r, u_char *buf, size_t len)
|
|
|
2454 {
|
|
|
2455 u_char *p;
|
|
54
|
2456
|
|
|
2457 if (r->server_name.data) {
|
|
|
2458 p = ngx_snprintf(buf, len, ", server: %V", &r->server_name);
|
|
52
|
2459 len -= p - buf;
|
|
54
|
2460 buf = p;
|
|
52
|
2461 }
|
|
|
2462
|
|
54
|
2463 if (r->unparsed_uri.data) {
|
|
|
2464 p = ngx_snprintf(buf, len, ", URL: \"%V\"", &r->unparsed_uri);
|
|
|
2465 len -= p - buf;
|
|
|
2466 buf = p;
|
|
|
2467
|
|
|
2468 } else {
|
|
|
2469 if (r->request_line.data == NULL && r->request_start) {
|
|
|
2470 for (p = r->request_start; p < r->header_in->last; p++) {
|
|
|
2471 if (*p == CR || *p == LF) {
|
|
|
2472 break;
|
|
|
2473 }
|
|
|
2474 }
|
|
|
2475
|
|
|
2476 r->request_line.len = p - r->request_start;
|
|
|
2477 r->request_line.data = r->request_start;
|
|
|
2478 }
|
|
|
2479
|
|
|
2480 if (r->request_line.len) {
|
|
|
2481 p = ngx_snprintf(buf, len, ", request: \"%V\"", &r->request_line);
|
|
|
2482 len -= p - buf;
|
|
|
2483 buf = p;
|
|
|
2484 }
|
|
10
|
2485 }
|
|
|
2486
|
|
54
|
2487 return ngx_http_log_error_info(r, buf, len);
|
|
0
|
2488 }
|
|
54
|
2489
|
|
|
2490
|
|
|
2491 u_char *
|
|
|
2492 ngx_http_log_error_info(ngx_http_request_t *r, u_char *buf, size_t len)
|
|
|
2493 {
|
|
|
2494 u_char *p;
|
|
|
2495
|
|
|
2496 if (r->headers_in.host) {
|
|
|
2497 p = ngx_snprintf(buf, len, ", host: \"%V\"",
|
|
|
2498 &r->headers_in.host->value);
|
|
|
2499 len -= p - buf;
|
|
|
2500 buf = p;
|
|
|
2501 }
|
|
|
2502
|
|
|
2503 if (r->headers_in.referer) {
|
|
|
2504 p = ngx_snprintf(buf, len, ", referrer: \"%V\"",
|
|
|
2505 &r->headers_in.referer->value);
|
|
|
2506 buf = p;
|
|
|
2507 }
|
|
|
2508
|
|
|
2509 return buf;
|
|
|
2510 }
|
