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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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74
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34 static ngx_int_t 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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80
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46 static void ngx_http_close_request(ngx_http_request_t *r, ngx_int_t error);
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47 static void ngx_http_close_connection(ngx_connection_t *c);
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0
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48
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32
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49 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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50 static u_char *ngx_http_log_error_handler(ngx_http_request_t *r, u_char *buf,
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51 size_t len);
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0
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52
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53
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54
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54 static char *ngx_http_client_errors[] = {
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55
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56 /* NGX_HTTP_PARSE_INVALID_METHOD */
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57 "client sent invalid method",
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58
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59 /* NGX_HTTP_PARSE_INVALID_REQUEST */
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60 "client sent invalid request",
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61
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62 /* NGX_HTTP_PARSE_INVALID_09_METHOD */
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63 "client sent invalid method in HTTP/0.9 request"
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0
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64 };
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65
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66
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67 ngx_http_header_t ngx_http_headers_in[] = {
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58
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68 { ngx_string("Host"), offsetof(ngx_http_headers_in_t, host),
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72
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69 ngx_http_process_unique_header_line },
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58
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70
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71 { ngx_string("Connection"), offsetof(ngx_http_headers_in_t, connection),
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72
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72 ngx_http_process_unique_header_line },
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58
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73
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0
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74 { ngx_string("If-Modified-Since"),
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58
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75 offsetof(ngx_http_headers_in_t, if_modified_since),
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76 ngx_http_process_header_line },
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77
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78 { ngx_string("User-Agent"), offsetof(ngx_http_headers_in_t, user_agent),
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79 ngx_http_process_header_line },
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80
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81 { ngx_string("Referer"), offsetof(ngx_http_headers_in_t, referer),
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82 ngx_http_process_header_line },
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83
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0
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84 { ngx_string("Content-Length"),
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58
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85 offsetof(ngx_http_headers_in_t, content_length),
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72
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86 ngx_http_process_unique_header_line },
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58
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87
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28
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88 { ngx_string("Content-Type"),
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58
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89 offsetof(ngx_http_headers_in_t, content_type),
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90 ngx_http_process_header_line },
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91
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92 { ngx_string("Range"), offsetof(ngx_http_headers_in_t, range),
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93 ngx_http_process_header_line },
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94
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0
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95 #if (NGX_HTTP_GZIP)
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96 { ngx_string("Accept-Encoding"),
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58
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97 offsetof(ngx_http_headers_in_t, accept_encoding),
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98 ngx_http_process_header_line },
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99
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100 { ngx_string("Via"), offsetof(ngx_http_headers_in_t, via),
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101 ngx_http_process_header_line },
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0
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102 #endif
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103
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104 { ngx_string("Authorization"),
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58
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105 offsetof(ngx_http_headers_in_t, authorization),
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72
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106 ngx_http_process_unique_header_line },
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58
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107
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108 { ngx_string("Keep-Alive"), offsetof(ngx_http_headers_in_t, keep_alive),
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109 ngx_http_process_header_line },
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0
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110
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111 #if (NGX_HTTP_PROXY)
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112 { ngx_string("X-Forwarded-For"),
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58
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113 offsetof(ngx_http_headers_in_t, x_forwarded_for),
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114 ngx_http_process_header_line },
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0
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115 #endif
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28
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116
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38
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117 #if (NGX_HTTP_HEADERS)
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58
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118 { ngx_string("Accept"), offsetof(ngx_http_headers_in_t, accept),
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119 ngx_http_process_header_line },
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120
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38
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121 { ngx_string("Accept-Language"),
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58
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122 offsetof(ngx_http_headers_in_t, accept_language),
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123 ngx_http_process_header_line },
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38
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124 #endif
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125
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58
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126 { ngx_string("Cookie"), 0, ngx_http_process_cookie },
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127
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128 { ngx_null_string, 0, NULL }
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0
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129 };
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130
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131
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50
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132 void
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133 ngx_http_init_connection(ngx_connection_t *c)
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0
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134 {
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135 ngx_event_t *rev;
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136 ngx_http_log_ctx_t *ctx;
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137
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50
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138 ctx = ngx_palloc(c->pool, sizeof(ngx_http_log_ctx_t));
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139 if (ctx == NULL) {
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0
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140 ngx_http_close_connection(c);
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141 return;
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142 }
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143
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10
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144 ctx->client = &c->addr_text;
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145 ctx->request = NULL;
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32
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146
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147 c->log->connection = c->number;
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148 c->log->handler = ngx_http_log_error;
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0
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149 c->log->data = ctx;
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32
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150 c->log->action = "reading client request line";
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151
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0
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152 c->log_error = NGX_ERROR_INFO;
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153
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154 rev = c->read;
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58
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155 rev->handler = ngx_http_init_request;
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156
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157 /* STUB: epoll edge */ c->write->handler = ngx_http_empty_handler;
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0
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158
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159 if (rev->ready) {
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160 /* the deferred accept(), rtsig, aio, iocp */
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161
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162 if (ngx_accept_mutex) {
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163 if (ngx_mutex_lock(ngx_posted_events_mutex) == NGX_ERROR) {
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42
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164
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0
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165 ngx_http_close_connection(c);
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166 return;
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167 }
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168
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169 ngx_post_event(rev);
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170
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171 ngx_mutex_unlock(ngx_posted_events_mutex);
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42
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172
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173 #if (NGX_STAT_STUB)
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44
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174 ngx_atomic_inc(ngx_stat_reading);
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42
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175 #endif
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0
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176 return;
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177 }
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178
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179 #if (NGX_STAT_STUB)
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42
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180 ngx_atomic_inc(ngx_stat_reading);
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0
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181 #endif
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182
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183 ngx_http_init_request(rev);
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184 return;
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185 }
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186
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187 ngx_add_timer(rev, c->listening->post_accept_timeout);
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188
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189 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) {
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190 ngx_http_close_connection(c);
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191 return;
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192 }
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193
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194 #if (NGX_STAT_STUB)
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42
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195 ngx_atomic_inc(ngx_stat_reading);
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0
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196 #endif
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197
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198 }
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199
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200
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50
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201 static
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202 void ngx_http_init_request(ngx_event_t *rev)
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0
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203 {
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204 ngx_uint_t i;
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205 socklen_t len;
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28
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206 struct sockaddr_in sin;
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0
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207 ngx_connection_t *c;
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208 ngx_http_request_t *r;
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209 ngx_http_in_port_t *in_port;
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210 ngx_http_in_addr_t *in_addr;
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54
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211 ngx_http_log_ctx_t *ctx;
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0
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212 ngx_http_connection_t *hc;
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213 ngx_http_server_name_t *server_name;
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214 ngx_http_core_srv_conf_t *cscf;
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215 ngx_http_core_loc_conf_t *clcf;
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216 #if (NGX_HTTP_SSL)
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217 ngx_http_ssl_srv_conf_t *sscf;
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218 #endif
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219
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220 c = rev->data;
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221
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222 if (rev->timedout) {
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223 ngx_log_error(NGX_LOG_INFO, c->log, NGX_ETIMEDOUT, "client timed out");
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224
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225 #if (NGX_STAT_STUB)
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42
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226 ngx_atomic_dec(ngx_stat_reading);
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0
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227 #endif
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228
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229 ngx_http_close_connection(c);
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230 return;
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231 }
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232
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233 hc = c->data;
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234
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235 if (hc) {
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236
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237 #if (NGX_STAT_STUB)
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42
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238 ngx_atomic_inc(ngx_stat_reading);
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0
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239 #endif
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240
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241 } else {
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50
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242 hc = ngx_pcalloc(c->pool, sizeof(ngx_http_connection_t));
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243 if (hc == NULL) {
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0
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244
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245 #if (NGX_STAT_STUB)
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42
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246 ngx_atomic_dec(ngx_stat_reading);
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0
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247 #endif
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248
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249 ngx_http_close_connection(c);
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250 return;
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251 }
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252 }
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253
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254 r = hc->request;
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255
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256 if (r) {
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257 ngx_memzero(r, sizeof(ngx_http_request_t));
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258
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259 r->pipeline = hc->pipeline;
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260
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261 if (hc->nbusy) {
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262 r->header_in = hc->busy[0];
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263 }
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264
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265 } else {
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50
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266 r = ngx_pcalloc(c->pool, sizeof(ngx_http_request_t));
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267 if (r == NULL) {
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0
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268
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269 #if (NGX_STAT_STUB)
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42
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270 ngx_atomic_dec(ngx_stat_reading);
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0
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271 #endif
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272
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273 ngx_http_close_connection(c);
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274 return;
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275 }
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276
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277 hc->request = r;
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278 }
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279
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280 #if (NGX_STAT_STUB)
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42
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281 ngx_atomic_dec(ngx_stat_reading);
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0
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282 #endif
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283
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284 c->data = r;
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285 r->http_connection = hc;
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286
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287 c->sent = 0;
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288 r->signature = NGX_HTTP_MODULE;
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289
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290 /* find the server configuration for the address:port */
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291
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292 /* AF_INET only */
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293
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294 in_port = c->servers;
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295 in_addr = in_port->addrs.elts;
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296
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297 r->port = in_port->port;
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298 r->port_text = &in_port->port_text;
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299
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300 i = 0;
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301
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302 if (in_port->addrs.nelts > 1) {
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303
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304 /*
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305 * There are several addresses on this port and one of them
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306 * is the "*:port" wildcard so getsockname() is needed to determine
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307 * the server address.
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308 *
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309 * AcceptEx() already gave this address.
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310 */
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311
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10
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312 #if (NGX_WIN32)
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0
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313 if (c->local_sockaddr) {
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314 r->in_addr =
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315 ((struct sockaddr_in *) c->local_sockaddr)->sin_addr.s_addr;
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316
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28
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317 } else
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0
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318 #endif
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28
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319 {
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0
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320 len = sizeof(struct sockaddr_in);
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28
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321 if (getsockname(c->fd, (struct sockaddr *) &sin, &len) == -1) {
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0
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322 ngx_connection_error(c, ngx_socket_errno,
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323 "getsockname() failed");
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324 ngx_http_close_connection(c);
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325 return;
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326 }
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327
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28
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328 r->in_addr = sin.sin_addr.s_addr;
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0
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329 }
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330
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331 /* the last in_port->addrs address is "*" */
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332
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333 for ( /* void */ ; i < in_port->addrs.nelts - 1; i++) {
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334 if (in_addr[i].addr == r->in_addr) {
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335 break;
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336 }
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337 }
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338
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339 } else {
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340 r->in_addr = in_addr[0].addr;
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341 }
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342
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26
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343 r->virtual_names = &in_addr[i];
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0
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344
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345 /* the default server configuration for the address:port */
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346 cscf = in_addr[i].core_srv_conf;
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347
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348 r->main_conf = cscf->ctx->main_conf;
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349 r->srv_conf = cscf->ctx->srv_conf;
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350 r->loc_conf = cscf->ctx->loc_conf;
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351
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58
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352 rev->handler = ngx_http_process_request_line;
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0
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353
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354 #if (NGX_HTTP_SSL)
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355
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356 sscf = ngx_http_get_module_srv_conf(r, ngx_http_ssl_module);
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357 if (sscf->enable) {
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358
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359 if (c->ssl == NULL) {
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360 if (ngx_ssl_create_session(sscf->ssl_ctx, c, NGX_SSL_BUFFER)
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56
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361 == NGX_ERROR)
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0
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362 {
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363 ngx_http_close_connection(c);
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364 return;
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365 }
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366
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58
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367 rev->handler = ngx_http_ssl_handshake;
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26
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368
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0
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369 /*
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370 * The majority of browsers do not send the "close notify" alert.
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371 * Among them are MSIE, Mozilla, Netscape 4, Konqueror, and Links.
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54
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372 * And what is more, MSIE ignores the server's alert.
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0
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373 *
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374 * Opera always sends the alert.
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375 */
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376
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377 c->ssl->no_rcv_shut = 1;
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378 }
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379
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62
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380 r->main_filter_need_in_memory = 1;
|
|
0
|
381 }
|
|
|
382
|
|
|
383 #endif
|
|
|
384
|
|
|
385 server_name = cscf->server_names.elts;
|
|
6
|
386 r->server_name = server_name->name;
|
|
0
|
387
|
|
|
388 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
389 c->log->file = clcf->err_log->file;
|
|
|
390 if (!(c->log->log_level & NGX_LOG_DEBUG_CONNECTION)) {
|
|
|
391 c->log->log_level = clcf->err_log->log_level;
|
|
|
392 }
|
|
|
393
|
|
|
394 if (c->buffer == NULL) {
|
|
|
395 c->buffer = ngx_create_temp_buf(c->pool,
|
|
|
396 cscf->client_header_buffer_size);
|
|
|
397 if (c->buffer == NULL) {
|
|
|
398 ngx_http_close_connection(c);
|
|
|
399 return;
|
|
|
400 }
|
|
|
401 }
|
|
|
402
|
|
|
403 if (r->header_in == NULL) {
|
|
|
404 r->header_in = c->buffer;
|
|
|
405 }
|
|
|
406
|
|
50
|
407 r->pool = ngx_create_pool(cscf->request_pool_size, c->log);
|
|
|
408 if (r->pool == NULL) {
|
|
0
|
409 ngx_http_close_connection(c);
|
|
|
410 return;
|
|
|
411 }
|
|
|
412
|
|
|
413
|
|
|
414 if (ngx_list_init(&r->headers_out.headers, r->pool, 20,
|
|
58
|
415 sizeof(ngx_table_elt_t)) == NGX_ERROR)
|
|
0
|
416 {
|
|
|
417 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
418 ngx_http_close_connection(c);
|
|
|
419 return;
|
|
|
420 }
|
|
|
421
|
|
|
422
|
|
|
423 r->ctx = ngx_pcalloc(r->pool, sizeof(void *) * ngx_http_max_module);
|
|
|
424 if (r->ctx == NULL) {
|
|
|
425 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
426 ngx_http_close_connection(c);
|
|
|
427 return;
|
|
|
428 }
|
|
|
429
|
|
|
430 c->single_connection = 1;
|
|
|
431 r->connection = c;
|
|
|
432
|
|
46
|
433 r->start_time = ngx_time();
|
|
|
434
|
|
0
|
435 r->headers_in.content_length_n = -1;
|
|
|
436 r->headers_in.keep_alive_n = -1;
|
|
|
437 r->headers_out.content_length_n = -1;
|
|
|
438 r->headers_out.last_modified_time = -1;
|
|
|
439
|
|
|
440 r->http_state = NGX_HTTP_READING_REQUEST_STATE;
|
|
|
441
|
|
54
|
442 ctx = c->log->data;
|
|
|
443 ctx->request = r;
|
|
58
|
444 r->log_handler = ngx_http_log_error_handler;
|
|
54
|
445
|
|
0
|
446 #if (NGX_STAT_STUB)
|
|
42
|
447 ngx_atomic_inc(ngx_stat_reading);
|
|
26
|
448 r->stat_reading = 1;
|
|
42
|
449 ngx_atomic_inc(ngx_stat_requests);
|
|
0
|
450 #endif
|
|
|
451
|
|
58
|
452 rev->handler(rev);
|
|
0
|
453 }
|
|
|
454
|
|
|
455
|
|
|
456 #if (NGX_HTTP_SSL)
|
|
|
457
|
|
50
|
458 static void
|
|
|
459 ngx_http_ssl_handshake(ngx_event_t *rev)
|
|
0
|
460 {
|
|
10
|
461 u_char buf[1];
|
|
|
462 ssize_t n;
|
|
0
|
463 ngx_int_t rc;
|
|
|
464 ngx_connection_t *c;
|
|
|
465 ngx_http_request_t *r;
|
|
|
466
|
|
|
467 c = rev->data;
|
|
|
468 r = c->data;
|
|
|
469
|
|
|
470 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, rev->log, 0,
|
|
|
471 "http check ssl handshake");
|
|
|
472
|
|
|
473 if (rev->timedout) {
|
|
54
|
474 ngx_log_error(NGX_LOG_INFO, c->log, NGX_ETIMEDOUT, "client timed out");
|
|
|
475 c->timedout = 1;
|
|
|
476 ngx_http_close_request(r, NGX_HTTP_REQUEST_TIME_OUT);
|
|
|
477 ngx_http_close_connection(c);
|
|
0
|
478 return;
|
|
|
479 }
|
|
|
480
|
|
|
481 n = recv(c->fd, buf, 1, MSG_PEEK);
|
|
|
482
|
|
|
483 if (n == -1 && ngx_socket_errno == NGX_EAGAIN) {
|
|
|
484 return;
|
|
|
485 }
|
|
|
486
|
|
|
487 if (n == 1) {
|
|
|
488 if (buf[0] == 0x80 /* SSLv2 */ || buf[0] == 0x16 /* SSLv3/TLSv1 */) {
|
|
|
489 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, rev->log, 0,
|
|
10
|
490 "https ssl handshake: 0x%02Xd", buf[0]);
|
|
0
|
491
|
|
|
492 c->recv = ngx_ssl_recv;
|
|
|
493 c->send_chain = ngx_ssl_send_chain;
|
|
|
494
|
|
|
495 rc = ngx_ssl_handshake(c);
|
|
|
496
|
|
|
497 if (rc == NGX_ERROR) {
|
|
|
498 ngx_http_close_request(r, NGX_HTTP_BAD_REQUEST);
|
|
|
499 ngx_http_close_connection(r->connection);
|
|
|
500 return;
|
|
|
501 }
|
|
|
502
|
|
|
503 if (rc != NGX_OK) {
|
|
|
504 return;
|
|
|
505 }
|
|
|
506
|
|
|
507 } else {
|
|
|
508 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, rev->log, 0,
|
|
|
509 "plain http");
|
|
|
510
|
|
|
511 r->plain_http = 1;
|
|
|
512 }
|
|
|
513 }
|
|
|
514
|
|
58
|
515 rev->handler = ngx_http_process_request_line;
|
|
0
|
516 ngx_http_process_request_line(rev);
|
|
|
517 }
|
|
|
518
|
|
|
519 #endif
|
|
|
520
|
|
|
521
|
|
50
|
522 static void
|
|
|
523 ngx_http_process_request_line(ngx_event_t *rev)
|
|
0
|
524 {
|
|
|
525 ssize_t n;
|
|
|
526 ngx_int_t rc, rv;
|
|
|
527 ngx_connection_t *c;
|
|
|
528 ngx_http_request_t *r;
|
|
|
529 ngx_http_log_ctx_t *ctx;
|
|
|
530
|
|
|
531 c = rev->data;
|
|
|
532 r = c->data;
|
|
|
533
|
|
|
534 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, rev->log, 0,
|
|
|
535 "http process request line");
|
|
|
536
|
|
|
537 if (rev->timedout) {
|
|
54
|
538 ngx_log_error(NGX_LOG_INFO, c->log, NGX_ETIMEDOUT, "client timed out");
|
|
|
539 c->timedout = 1;
|
|
|
540 ngx_http_close_request(r, NGX_HTTP_REQUEST_TIME_OUT);
|
|
|
541 ngx_http_close_connection(c);
|
|
0
|
542 return;
|
|
|
543 }
|
|
|
544
|
|
|
545 rc = NGX_AGAIN;
|
|
|
546
|
|
|
547 for ( ;; ) {
|
|
|
548
|
|
|
549 if (rc == NGX_AGAIN) {
|
|
|
550 n = ngx_http_read_request_header(r);
|
|
|
551
|
|
|
552 if (n == NGX_AGAIN || n == NGX_ERROR) {
|
|
|
553 return;
|
|
|
554 }
|
|
|
555 }
|
|
|
556
|
|
|
557 rc = ngx_http_parse_request_line(r, r->header_in);
|
|
|
558
|
|
|
559 if (rc == NGX_OK) {
|
|
|
560
|
|
|
561 /* the request line has been parsed successfully */
|
|
|
562
|
|
10
|
563 r->request_line.len = r->request_end - r->request_start;
|
|
|
564 r->request_line.data = r->request_start;
|
|
|
565
|
|
0
|
566
|
|
|
567 if (r->args_start) {
|
|
|
568 r->uri.len = r->args_start - 1 - r->uri_start;
|
|
|
569 } else {
|
|
|
570 r->uri.len = r->uri_end - r->uri_start;
|
|
|
571 }
|
|
|
572
|
|
18
|
573
|
|
2
|
574 if (r->complex_uri || r->quoted_uri) {
|
|
10
|
575
|
|
50
|
576 r->uri.data = ngx_palloc(r->pool, r->uri.len + 1);
|
|
|
577 if (r->uri.data == NULL) {
|
|
10
|
578 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
579 ngx_http_close_connection(c);
|
|
|
580 return;
|
|
|
581 }
|
|
|
582
|
|
0
|
583 rc = ngx_http_parse_complex_uri(r);
|
|
|
584
|
|
54
|
585 if (rc == NGX_HTTP_PARSE_INVALID_REQUEST) {
|
|
|
586 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
|
587 "client sent invalid request");
|
|
|
588 ngx_http_finalize_request(r, NGX_HTTP_BAD_REQUEST);
|
|
0
|
589 return;
|
|
|
590 }
|
|
|
591
|
|
|
592 } else {
|
|
10
|
593 r->uri.data = r->uri_start;
|
|
0
|
594 }
|
|
|
595
|
|
18
|
596
|
|
10
|
597 r->unparsed_uri.len = r->uri_end - r->uri_start;
|
|
|
598 r->unparsed_uri.data = r->uri_start;
|
|
|
599
|
|
0
|
600
|
|
58
|
601 r->method_name.len = r->method_end - r->request_start + 1;
|
|
|
602 r->method_name.data = r->request_line.data;
|
|
0
|
603
|
|
10
|
604
|
|
28
|
605 if (r->http_protocol.data) {
|
|
|
606 r->http_protocol.len = r->request_end - r->http_protocol.data;
|
|
|
607 }
|
|
|
608
|
|
|
609
|
|
0
|
610 if (r->uri_ext) {
|
|
|
611 if (r->args_start) {
|
|
|
612 r->exten.len = r->args_start - 1 - r->uri_ext;
|
|
|
613 } else {
|
|
|
614 r->exten.len = r->uri_end - r->uri_ext;
|
|
|
615 }
|
|
|
616
|
|
10
|
617 r->exten.data = r->uri_ext;
|
|
0
|
618 }
|
|
|
619
|
|
10
|
620
|
|
0
|
621 if (r->args_start && r->uri_end > r->args_start) {
|
|
|
622 r->args.len = r->uri_end - r->args_start;
|
|
10
|
623 r->args.data = r->args_start;
|
|
0
|
624 }
|
|
|
625
|
|
10
|
626
|
|
|
627 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
|
628 "http request line: \"%V\"", &r->request_line);
|
|
|
629
|
|
0
|
630 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
10
|
631 "http uri: \"%V\"", &r->uri);
|
|
0
|
632
|
|
|
633 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
10
|
634 "http args: \"%V\"", &r->args);
|
|
0
|
635
|
|
|
636 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
10
|
637 "http exten: \"%V\"", &r->exten);
|
|
|
638
|
|
0
|
639 if (r->http_version < NGX_HTTP_VERSION_10) {
|
|
86
|
640
|
|
|
641 if (rev->timer_set) {
|
|
|
642 ngx_del_timer(rev);
|
|
|
643 }
|
|
|
644
|
|
|
645 #if (NGX_STAT_STUB)
|
|
|
646 ngx_atomic_dec(ngx_stat_reading);
|
|
|
647 r->stat_reading = 0;
|
|
|
648 ngx_atomic_inc(ngx_stat_writing);
|
|
|
649 r->stat_writing = 1;
|
|
|
650 #endif
|
|
|
651
|
|
|
652 rev->handler = ngx_http_request_handler;
|
|
|
653 c->write->handler = ngx_http_request_handler;
|
|
58
|
654 r->read_event_handler = ngx_http_block_read;
|
|
86
|
655
|
|
0
|
656 ngx_http_handler(r);
|
|
86
|
657
|
|
0
|
658 return;
|
|
|
659 }
|
|
|
660
|
|
|
661
|
|
|
662 if (ngx_list_init(&r->headers_in.headers, r->pool, 20,
|
|
|
663 sizeof(ngx_table_elt_t)) == NGX_ERROR)
|
|
|
664 {
|
|
|
665 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
666 ngx_http_close_connection(c);
|
|
|
667 return;
|
|
|
668 }
|
|
|
669
|
|
|
670
|
|
48
|
671 if (ngx_array_init(&r->headers_in.cookies, r->pool, 2,
|
|
0
|
672 sizeof(ngx_table_elt_t *)) == NGX_ERROR)
|
|
|
673 {
|
|
|
674 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
675 ngx_http_close_connection(c);
|
|
|
676 return;
|
|
|
677 }
|
|
|
678
|
|
32
|
679 c->log->action = "reading client request headers";
|
|
0
|
680
|
|
58
|
681 rev->handler = ngx_http_process_request_headers;
|
|
0
|
682 ngx_http_process_request_headers(rev);
|
|
|
683
|
|
|
684 return;
|
|
54
|
685 }
|
|
|
686
|
|
|
687 if (rc != NGX_AGAIN) {
|
|
0
|
688
|
|
|
689 /* there was error while a request line parsing */
|
|
|
690
|
|
54
|
691 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
|
692 ngx_http_client_errors[rc - NGX_HTTP_CLIENT_ERROR]);
|
|
|
693 ngx_http_finalize_request(r, NGX_HTTP_BAD_REQUEST);
|
|
0
|
694 return;
|
|
|
695 }
|
|
|
696
|
|
|
697 /* NGX_AGAIN: a request line parsing is still incomplete */
|
|
|
698
|
|
|
699 if (r->header_in->pos == r->header_in->end) {
|
|
|
700
|
|
|
701 rv = ngx_http_alloc_large_header_buffer(r, 1);
|
|
|
702
|
|
|
703 if (rv == NGX_ERROR) {
|
|
|
704 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
705 ngx_http_close_connection(c);
|
|
|
706 return;
|
|
|
707 }
|
|
|
708
|
|
|
709 if (rv == NGX_DECLINED) {
|
|
54
|
710 ctx = c->log->data;
|
|
|
711 ctx->request = r;
|
|
|
712
|
|
|
713 r->request_line.len = r->header_in->end - r->request_start;
|
|
|
714 r->request_line.data = r->request_start;
|
|
|
715
|
|
|
716 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
|
717 "client sent too long URI");
|
|
|
718 ngx_http_finalize_request(r, NGX_HTTP_REQUEST_URI_TOO_LARGE);
|
|
0
|
719 return;
|
|
|
720 }
|
|
|
721 }
|
|
|
722 }
|
|
|
723 }
|
|
|
724
|
|
|
725
|
|
50
|
726 static void
|
|
|
727 ngx_http_process_request_headers(ngx_event_t *rev)
|
|
0
|
728 {
|
|
56
|
729 ssize_t n;
|
|
|
730 ngx_int_t rc, rv;
|
|
|
731 ngx_uint_t key;
|
|
|
732 ngx_str_t header;
|
|
58
|
733 ngx_table_elt_t *h;
|
|
56
|
734 ngx_connection_t *c;
|
|
|
735 ngx_http_header_t *hh;
|
|
|
736 ngx_http_request_t *r;
|
|
60
|
737 ngx_http_core_srv_conf_t *cscf;
|
|
56
|
738 ngx_http_core_main_conf_t *cmcf;
|
|
0
|
739
|
|
|
740 c = rev->data;
|
|
|
741 r = c->data;
|
|
|
742
|
|
|
743 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, rev->log, 0,
|
|
|
744 "http process request header line");
|
|
|
745
|
|
|
746 if (rev->timedout) {
|
|
54
|
747 ngx_log_error(NGX_LOG_INFO, c->log, NGX_ETIMEDOUT, "client timed out");
|
|
|
748 c->timedout = 1;
|
|
|
749 ngx_http_close_request(r, NGX_HTTP_REQUEST_TIME_OUT);
|
|
|
750 ngx_http_close_connection(c);
|
|
0
|
751 return;
|
|
|
752 }
|
|
|
753
|
|
56
|
754 cmcf = ngx_http_get_module_main_conf(r, ngx_http_core_module);
|
|
60
|
755 cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
|
|
56
|
756 hh = (ngx_http_header_t *) cmcf->headers_in_hash.buckets;
|
|
|
757
|
|
0
|
758 rc = NGX_AGAIN;
|
|
|
759
|
|
|
760 for ( ;; ) {
|
|
|
761
|
|
|
762 if (rc == NGX_AGAIN) {
|
|
|
763
|
|
|
764 if (r->header_in->pos == r->header_in->end) {
|
|
|
765
|
|
|
766 rv = ngx_http_alloc_large_header_buffer(r, 0);
|
|
|
767
|
|
|
768 if (rv == NGX_ERROR) {
|
|
|
769 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
770 ngx_http_close_connection(c);
|
|
|
771 return;
|
|
|
772 }
|
|
|
773
|
|
|
774 if (rv == NGX_DECLINED) {
|
|
54
|
775 header.len = r->header_in->end - r->header_name_start;
|
|
|
776 header.data = r->header_name_start;
|
|
80
|
777
|
|
|
778 if (header.len > NGX_MAX_ERROR_STR - 300) {
|
|
|
779 header.len = NGX_MAX_ERROR_STR - 300;
|
|
|
780 header.data[header.len++] = '.';
|
|
|
781 header.data[header.len++] = '.';
|
|
|
782 header.data[header.len++] = '.';
|
|
|
783 }
|
|
|
784
|
|
54
|
785 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
|
786 "client sent too long header line: \"%V\"",
|
|
|
787 &header);
|
|
|
788 ngx_http_close_request(r, NGX_HTTP_BAD_REQUEST);
|
|
|
789 ngx_http_close_connection(c);
|
|
0
|
790 return;
|
|
|
791 }
|
|
|
792 }
|
|
|
793
|
|
|
794 n = ngx_http_read_request_header(r);
|
|
|
795
|
|
|
796 if (n == NGX_AGAIN || n == NGX_ERROR) {
|
|
|
797 return;
|
|
|
798 }
|
|
|
799 }
|
|
|
800
|
|
|
801 rc = ngx_http_parse_header_line(r, r->header_in);
|
|
|
802
|
|
|
803 if (rc == NGX_OK) {
|
|
|
804
|
|
60
|
805 if (r->invalid_header && cscf->ignore_invalid_headers) {
|
|
52
|
806
|
|
|
807 /* there was error while a header line parsing */
|
|
|
808
|
|
|
809 header.len = r->header_end - r->header_name_start;
|
|
|
810 header.data = r->header_name_start;
|
|
|
811
|
|
54
|
812 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
|
813 "client sent invalid header line: \"%V\"",
|
|
52
|
814 &header);
|
|
|
815 continue;
|
|
|
816 }
|
|
|
817
|
|
0
|
818 /* a header line has been parsed successfully */
|
|
|
819
|
|
50
|
820 h = ngx_list_push(&r->headers_in.headers);
|
|
|
821 if (h == NULL) {
|
|
0
|
822 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
823 ngx_http_close_connection(c);
|
|
|
824 return;
|
|
|
825 }
|
|
|
826
|
|
56
|
827 h->hash = r->header_hash;
|
|
|
828
|
|
0
|
829 h->key.len = r->header_name_end - r->header_name_start;
|
|
|
830 h->key.data = r->header_name_start;
|
|
|
831 h->key.data[h->key.len] = '\0';
|
|
|
832
|
|
|
833 h->value.len = r->header_end - r->header_start;
|
|
|
834 h->value.data = r->header_start;
|
|
|
835 h->value.data[h->value.len] = '\0';
|
|
|
836
|
|
58
|
837 key = h->hash % cmcf->headers_in_hash.hash_size;
|
|
|
838
|
|
|
839 if (hh[key].name.len == h->key.len
|
|
|
840 && ngx_strcasecmp(hh[key].name.data, h->key.data) == 0)
|
|
0
|
841 {
|
|
58
|
842 if (hh[key].handler(r, h, hh[key].offset) != NGX_OK) {
|
|
0
|
843 return;
|
|
|
844 }
|
|
|
845 }
|
|
|
846
|
|
|
847 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
10
|
848 "http header: \"%V: %V\"",
|
|
|
849 &h->key, &h->value);
|
|
0
|
850
|
|
|
851 continue;
|
|
54
|
852 }
|
|
|
853
|
|
|
854 if (rc == NGX_HTTP_PARSE_HEADER_DONE) {
|
|
0
|
855
|
|
|
856 /* a whole header has been parsed successfully */
|
|
|
857
|
|
|
858 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
859 "http header done");
|
|
|
860
|
|
24
|
861 r->request_length += r->header_in->pos - r->header_in->start;
|
|
|
862
|
|
0
|
863 r->http_state = NGX_HTTP_PROCESS_REQUEST_STATE;
|
|
|
864
|
|
|
865 rc = ngx_http_process_request_header(r);
|
|
|
866
|
|
|
867 if (rc != NGX_OK) {
|
|
|
868 return;
|
|
|
869 }
|
|
|
870
|
|
|
871 if (rev->timer_set) {
|
|
|
872 ngx_del_timer(rev);
|
|
|
873 }
|
|
|
874
|
|
|
875 #if (NGX_STAT_STUB)
|
|
42
|
876 ngx_atomic_dec(ngx_stat_reading);
|
|
0
|
877 r->stat_reading = 0;
|
|
42
|
878 ngx_atomic_inc(ngx_stat_writing);
|
|
0
|
879 r->stat_writing = 1;
|
|
|
880 #endif
|
|
|
881
|
|
58
|
882 rev->handler = ngx_http_request_handler;
|
|
|
883 c->write->handler = ngx_http_request_handler;
|
|
|
884 r->read_event_handler = ngx_http_block_read;
|
|
|
885
|
|
0
|
886 ngx_http_handler(r);
|
|
86
|
887
|
|
0
|
888 return;
|
|
54
|
889 }
|
|
|
890
|
|
|
891 if (rc == NGX_AGAIN) {
|
|
|
892
|
|
|
893 /* a header line parsing is still not complete */
|
|
|
894
|
|
|
895 continue;
|
|
0
|
896 }
|
|
|
897
|
|
54
|
898 /* rc == NGX_HTTP_PARSE_INVALID_HEADER: "\r" is not followed by "\n" */
|
|
|
899
|
|
|
900 header.len = r->header_end - r->header_name_start;
|
|
|
901 header.data = r->header_name_start;
|
|
|
902 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
|
903 "client sent invalid header line: \"%V\\r...\"",
|
|
|
904 &header);
|
|
|
905 ngx_http_close_request(r, NGX_HTTP_BAD_REQUEST);
|
|
|
906 ngx_http_close_connection(c);
|
|
|
907 return;
|
|
0
|
908 }
|
|
|
909 }
|
|
|
910
|
|
|
911
|
|
50
|
912 static ssize_t
|
|
|
913 ngx_http_read_request_header(ngx_http_request_t *r)
|
|
0
|
914 {
|
|
|
915 ssize_t n;
|
|
|
916 ngx_event_t *rev;
|
|
|
917 ngx_http_core_srv_conf_t *cscf;
|
|
|
918
|
|
|
919 rev = r->connection->read;
|
|
|
920
|
|
|
921 n = r->header_in->last - r->header_in->pos;
|
|
|
922
|
|
|
923 if (n > 0) {
|
|
|
924 return n;
|
|
|
925 }
|
|
|
926
|
|
72
|
927 if (rev->ready) {
|
|
|
928 n = r->connection->recv(r->connection, r->header_in->last,
|
|
|
929 r->header_in->end - r->header_in->last);
|
|
|
930 } else {
|
|
|
931 n = NGX_AGAIN;
|
|
0
|
932 }
|
|
|
933
|
|
|
934 if (n == NGX_AGAIN) {
|
|
|
935 if (!r->header_timeout_set) {
|
|
|
936 cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
|
|
|
937 ngx_add_timer(rev, cscf->client_header_timeout);
|
|
|
938 r->header_timeout_set = 1;
|
|
|
939 }
|
|
|
940
|
|
|
941 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) {
|
|
|
942 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
943 ngx_http_close_connection(r->connection);
|
|
|
944 return NGX_ERROR;
|
|
|
945 }
|
|
|
946
|
|
|
947 return NGX_AGAIN;
|
|
|
948 }
|
|
|
949
|
|
|
950 if (n == 0) {
|
|
|
951 ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
|
|
|
952 "client closed prematurely connection");
|
|
|
953 }
|
|
|
954
|
|
|
955 if (n == 0 || n == NGX_ERROR) {
|
|
|
956 ngx_http_close_request(r, NGX_HTTP_BAD_REQUEST);
|
|
|
957 ngx_http_close_connection(r->connection);
|
|
|
958 return NGX_ERROR;
|
|
|
959 }
|
|
|
960
|
|
|
961 r->header_in->last += n;
|
|
|
962
|
|
|
963 return n;
|
|
|
964 }
|
|
|
965
|
|
|
966
|
|
50
|
967 static ngx_int_t
|
|
|
968 ngx_http_alloc_large_header_buffer(ngx_http_request_t *r,
|
|
|
969 ngx_uint_t request_line)
|
|
0
|
970 {
|
|
|
971 u_char *old, *new;
|
|
|
972 ngx_buf_t *b;
|
|
|
973 ngx_http_connection_t *hc;
|
|
|
974 ngx_http_core_srv_conf_t *cscf;
|
|
|
975
|
|
|
976 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
977 "http alloc large header buffer");
|
|
|
978
|
|
|
979 if (request_line && r->state == 0) {
|
|
|
980
|
|
|
981 /* the client fills up the buffer with "\r\n" */
|
|
|
982
|
|
24
|
983 r->request_length += r->header_in->end - r->header_in->start;
|
|
|
984
|
|
0
|
985 r->header_in->pos = r->header_in->start;
|
|
|
986 r->header_in->last = r->header_in->start;
|
|
|
987
|
|
|
988 return NGX_OK;
|
|
|
989 }
|
|
|
990
|
|
|
991 old = request_line ? r->request_start : r->header_name_start;
|
|
|
992
|
|
|
993 cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
|
|
|
994
|
|
|
995 if (r->state != 0
|
|
|
996 && (size_t) (r->header_in->pos - old)
|
|
|
997 >= cscf->large_client_header_buffers.size)
|
|
|
998 {
|
|
|
999 return NGX_DECLINED;
|
|
|
1000 }
|
|
|
1001
|
|
|
1002 hc = r->http_connection;
|
|
|
1003
|
|
|
1004 if (hc->nfree) {
|
|
|
1005 b = hc->free[--hc->nfree];
|
|
|
1006
|
|
|
1007 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
10
|
1008 "http large header free: %p %uz",
|
|
0
|
1009 b->pos, b->end - b->last);
|
|
|
1010
|
|
|
1011 } else if (hc->nbusy < cscf->large_client_header_buffers.num) {
|
|
|
1012
|
|
|
1013 if (hc->busy == NULL) {
|
|
|
1014 hc->busy = ngx_palloc(r->connection->pool,
|
|
|
1015 cscf->large_client_header_buffers.num * sizeof(ngx_buf_t *));
|
|
|
1016 if (hc->busy == NULL) {
|
|
|
1017 return NGX_ERROR;
|
|
|
1018 }
|
|
|
1019 }
|
|
|
1020
|
|
|
1021 b = ngx_create_temp_buf(r->connection->pool,
|
|
|
1022 cscf->large_client_header_buffers.size);
|
|
|
1023 if (b == NULL) {
|
|
|
1024 return NGX_ERROR;
|
|
|
1025 }
|
|
|
1026
|
|
|
1027 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
10
|
1028 "http large header alloc: %p %uz",
|
|
0
|
1029 b->pos, b->end - b->last);
|
|
|
1030
|
|
|
1031 } else {
|
|
|
1032 return NGX_DECLINED;
|
|
|
1033 }
|
|
|
1034
|
|
|
1035 hc->busy[hc->nbusy++] = b;
|
|
|
1036
|
|
|
1037 if (r->state == 0) {
|
|
|
1038 /*
|
|
|
1039 * r->state == 0 means that a header line was parsed successfully
|
|
|
1040 * and we do not need to copy incomplete header line and
|
|
|
1041 * to relocate the parser header pointers
|
|
|
1042 */
|
|
|
1043
|
|
24
|
1044 r->request_length += r->header_in->end - r->header_in->start;
|
|
|
1045
|
|
0
|
1046 r->header_in = b;
|
|
|
1047
|
|
|
1048 return NGX_OK;
|
|
|
1049 }
|
|
|
1050
|
|
|
1051 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1052 "http large header copy: %d", r->header_in->pos - old);
|
|
|
1053
|
|
24
|
1054 r->request_length += old - r->header_in->start;
|
|
|
1055
|
|
0
|
1056 new = b->start;
|
|
|
1057
|
|
|
1058 ngx_memcpy(new, old, r->header_in->pos - old);
|
|
|
1059
|
|
|
1060 b->pos = new + (r->header_in->pos - old);
|
|
|
1061 b->last = new + (r->header_in->pos - old);
|
|
|
1062
|
|
|
1063 if (request_line) {
|
|
|
1064 r->request_start = new;
|
|
|
1065
|
|
|
1066 if (r->request_end) {
|
|
|
1067 r->request_end = new + (r->request_end - old);
|
|
|
1068 }
|
|
|
1069
|
|
|
1070 r->method_end = new + (r->method_end - old);
|
|
|
1071
|
|
|
1072 r->uri_start = new + (r->uri_start - old);
|
|
|
1073 r->uri_end = new + (r->uri_end - old);
|
|
|
1074
|
|
|
1075 if (r->schema_start) {
|
|
|
1076 r->schema_start = new + (r->schema_start - old);
|
|
|
1077 r->schema_end = new + (r->schema_end - old);
|
|
|
1078 }
|
|
|
1079
|
|
|
1080 if (r->host_start) {
|
|
|
1081 r->host_start = new + (r->host_start - old);
|
|
|
1082 r->host_end = new + (r->host_end - old);
|
|
|
1083 }
|
|
|
1084
|
|
|
1085 if (r->port_start) {
|
|
|
1086 r->port_start = new + (r->port_start - old);
|
|
|
1087 r->port_end = new + (r->port_end - old);
|
|
|
1088 }
|
|
|
1089
|
|
|
1090 if (r->uri_ext) {
|
|
|
1091 r->uri_ext = new + (r->uri_ext - old);
|
|
|
1092 }
|
|
|
1093
|
|
|
1094 if (r->args_start) {
|
|
|
1095 r->args_start = new + (r->args_start - old);
|
|
|
1096 }
|
|
|
1097
|
|
|
1098 } else {
|
|
|
1099 r->header_name_start = new;
|
|
|
1100 r->header_name_end = new + (r->header_name_end - old);
|
|
|
1101 r->header_start = new + (r->header_start - old);
|
|
|
1102 r->header_end = new + (r->header_end - old);
|
|
|
1103 }
|
|
|
1104
|
|
|
1105 r->header_in = b;
|
|
|
1106
|
|
|
1107 return NGX_OK;
|
|
|
1108 }
|
|
|
1109
|
|
|
1110
|
|
50
|
1111 static ngx_int_t
|
|
58
|
1112 ngx_http_process_header_line(ngx_http_request_t *r, ngx_table_elt_t *h,
|
|
|
1113 ngx_uint_t offset)
|
|
|
1114 {
|
|
|
1115 ngx_table_elt_t **ph;
|
|
|
1116
|
|
|
1117 ph = (ngx_table_elt_t **) ((char *) &r->headers_in + offset);
|
|
|
1118
|
|
|
1119 if (*ph == NULL) {
|
|
|
1120 *ph = h;
|
|
|
1121 }
|
|
|
1122
|
|
|
1123 return NGX_OK;
|
|
|
1124 }
|
|
|
1125
|
|
|
1126
|
|
|
1127 static ngx_int_t
|
|
72
|
1128 ngx_http_process_unique_header_line(ngx_http_request_t *r, ngx_table_elt_t *h,
|
|
|
1129 ngx_uint_t offset)
|
|
|
1130 {
|
|
|
1131 ngx_table_elt_t **ph;
|
|
|
1132
|
|
|
1133 ph = (ngx_table_elt_t **) ((char *) &r->headers_in + offset);
|
|
|
1134
|
|
|
1135 if (*ph == NULL) {
|
|
|
1136 *ph = h;
|
|
|
1137 return NGX_OK;
|
|
|
1138 }
|
|
|
1139
|
|
|
1140 ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
|
|
|
1141 "client sent duplicate header line: \"%V: %V\"",
|
|
|
1142 &h->key, &h->value);
|
|
|
1143
|
|
|
1144 ngx_http_finalize_request(r, NGX_HTTP_BAD_REQUEST);
|
|
|
1145
|
|
|
1146 return NGX_ERROR;
|
|
|
1147 }
|
|
|
1148
|
|
|
1149
|
|
|
1150 static ngx_int_t
|
|
58
|
1151 ngx_http_process_cookie(ngx_http_request_t *r, ngx_table_elt_t *h,
|
|
|
1152 ngx_uint_t offset)
|
|
|
1153 {
|
|
|
1154 ngx_table_elt_t **cookie;
|
|
|
1155
|
|
|
1156 cookie = ngx_array_push(&r->headers_in.cookies);
|
|
72
|
1157 if (cookie) {
|
|
|
1158 *cookie = h;
|
|
|
1159 return NGX_OK;
|
|
58
|
1160 }
|
|
|
1161
|
|
72
|
1162 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
1163 ngx_http_close_connection(r->connection);
|
|
|
1164
|
|
|
1165 return NGX_ERROR;
|
|
58
|
1166 }
|
|
|
1167
|
|
|
1168
|
|
|
1169 static ngx_int_t
|
|
50
|
1170 ngx_http_process_request_header(ngx_http_request_t *r)
|
|
0
|
1171 {
|
|
54
|
1172 size_t len;
|
|
|
1173 u_char *ua, *user_agent, ch;
|
|
|
1174 ngx_http_core_srv_conf_t *cscf;
|
|
0
|
1175
|
|
|
1176 if (r->headers_in.host) {
|
|
|
1177 for (len = 0; len < r->headers_in.host->value.len; len++) {
|
|
26
|
1178 ch = r->headers_in.host->value.data[len];
|
|
|
1179
|
|
|
1180 if (ch == ':') {
|
|
0
|
1181 break;
|
|
|
1182 }
|
|
26
|
1183
|
|
|
1184 r->headers_in.host->value.data[len] = ngx_tolower(ch);
|
|
0
|
1185 }
|
|
54
|
1186
|
|
58
|
1187 if (r->headers_in.host->value.data[len - 1] == '.') {
|
|
|
1188 len--;
|
|
|
1189 }
|
|
|
1190
|
|
0
|
1191 r->headers_in.host_name_len = len;
|
|
|
1192
|
|
26
|
1193 if (ngx_http_find_virtual_server(r) != NGX_OK) {
|
|
54
|
1194 ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
|
|
|
1195 "client sent invalid \"Host\" header");
|
|
|
1196
|
|
|
1197 cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
|
|
|
1198
|
|
|
1199 if (cscf->restrict_host_names == NGX_HTTP_RESTRICT_HOST_CLOSE) {
|
|
|
1200 ngx_http_close_request(r, NGX_HTTP_BAD_REQUEST);
|
|
|
1201 ngx_http_close_connection(r->connection);
|
|
|
1202 return NGX_ERROR;
|
|
|
1203 }
|
|
|
1204
|
|
|
1205 ngx_http_finalize_request(r, NGX_HTTP_INVALID_HOST);
|
|
|
1206 return NGX_ERROR;
|
|
0
|
1207 }
|
|
|
1208
|
|
|
1209 } else {
|
|
|
1210 if (r->http_version > NGX_HTTP_VERSION_10) {
|
|
54
|
1211 ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
|
|
|
1212 "client sent HTTP/1.1 request without \"Host\" header");
|
|
|
1213 ngx_http_finalize_request(r, NGX_HTTP_BAD_REQUEST);
|
|
|
1214 return NGX_ERROR;
|
|
0
|
1215 }
|
|
54
|
1216
|
|
0
|
1217 r->headers_in.host_name_len = 0;
|
|
|
1218 }
|
|
|
1219
|
|
|
1220 if (r->headers_in.content_length) {
|
|
|
1221 r->headers_in.content_length_n =
|
|
50
|
1222 ngx_atosz(r->headers_in.content_length->value.data,
|
|
0
|
1223 r->headers_in.content_length->value.len);
|
|
|
1224
|
|
|
1225 if (r->headers_in.content_length_n == NGX_ERROR) {
|
|
54
|
1226 ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
|
|
|
1227 "client sent invalid \"Content-Length\" header");
|
|
|
1228 ngx_http_finalize_request(r, NGX_HTTP_BAD_REQUEST);
|
|
|
1229 return NGX_ERROR;
|
|
0
|
1230 }
|
|
|
1231 }
|
|
|
1232
|
|
32
|
1233 if (r->method == NGX_HTTP_POST && r->headers_in.content_length_n == -1) {
|
|
54
|
1234 ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
|
|
|
1235 "client sent POST method without \"Content-Length\" header");
|
|
|
1236 ngx_http_finalize_request(r, NGX_HTTP_BAD_REQUEST);
|
|
|
1237 return NGX_ERROR;
|
|
0
|
1238 }
|
|
|
1239
|
|
|
1240 if (r->plain_http) {
|
|
54
|
1241 ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
|
|
|
1242 "client sent plain HTTP request to HTTPS port");
|
|
|
1243 ngx_http_finalize_request(r, NGX_HTTP_TO_HTTPS);
|
|
|
1244 return NGX_ERROR;
|
|
0
|
1245 }
|
|
|
1246
|
|
|
1247 if (r->headers_in.connection) {
|
|
|
1248 if (r->headers_in.connection->value.len == 5
|
|
|
1249 && ngx_strcasecmp(r->headers_in.connection->value.data, "close")
|
|
58
|
1250 == 0)
|
|
0
|
1251 {
|
|
|
1252 r->headers_in.connection_type = NGX_HTTP_CONNECTION_CLOSE;
|
|
|
1253
|
|
|
1254 } else if (r->headers_in.connection->value.len == 10
|
|
|
1255 && ngx_strcasecmp(r->headers_in.connection->value.data,
|
|
58
|
1256 "keep-alive") == 0)
|
|
0
|
1257 {
|
|
|
1258 r->headers_in.connection_type = NGX_HTTP_CONNECTION_KEEP_ALIVE;
|
|
|
1259
|
|
|
1260 if (r->headers_in.keep_alive) {
|
|
|
1261 r->headers_in.keep_alive_n =
|
|
50
|
1262 ngx_atotm(r->headers_in.keep_alive->value.data,
|
|
0
|
1263 r->headers_in.keep_alive->value.len);
|
|
|
1264 }
|
|
|
1265 }
|
|
|
1266 }
|
|
|
1267
|
|
|
1268 if (r->headers_in.user_agent) {
|
|
|
1269
|
|
|
1270 /*
|
|
|
1271 * check some widespread browsers while the headers are still
|
|
|
1272 * in CPU cache
|
|
|
1273 */
|
|
|
1274
|
|
|
1275 user_agent = r->headers_in.user_agent->value.data;
|
|
|
1276
|
|
|
1277 ua = (u_char *) ngx_strstr(user_agent, "MSIE");
|
|
|
1278
|
|
|
1279 if (ua && ua + 8 < user_agent + r->headers_in.user_agent->value.len) {
|
|
|
1280
|
|
|
1281 r->headers_in.msie = 1;
|
|
|
1282
|
|
|
1283 if (ua[4] == ' ' && ua[5] == '4' && ua[6] == '.') {
|
|
|
1284 r->headers_in.msie4 = 1;
|
|
|
1285 }
|
|
|
1286
|
|
|
1287 #if 0
|
|
|
1288 /* MSIE ignores the SSL "close notify" alert */
|
|
22
|
1289 if (c->ssl) {
|
|
|
1290 r->connection->ssl->no_send_shut = 1;
|
|
|
1291 }
|
|
0
|
1292 #endif
|
|
|
1293 }
|
|
|
1294
|
|
|
1295 if (ngx_strstr(user_agent, "Opera")) {
|
|
|
1296 r->headers_in.opera = 1;
|
|
|
1297 r->headers_in.msie = 0;
|
|
|
1298 r->headers_in.msie4 = 0;
|
|
|
1299 }
|
|
|
1300
|
|
|
1301 if (!r->headers_in.msie && !r->headers_in.opera) {
|
|
|
1302
|
|
|
1303 if (ngx_strstr(user_agent, "Gecko/")) {
|
|
|
1304 r->headers_in.gecko = 1;
|
|
|
1305
|
|
|
1306 } else if (ngx_strstr(user_agent, "Konqueror")) {
|
|
|
1307 r->headers_in.konqueror = 1;
|
|
|
1308 }
|
|
|
1309 }
|
|
|
1310 }
|
|
|
1311
|
|
|
1312 return NGX_OK;
|
|
|
1313 }
|
|
|
1314
|
|
|
1315
|
|
50
|
1316 static ngx_int_t
|
|
|
1317 ngx_http_find_virtual_server(ngx_http_request_t *r)
|
|
26
|
1318 {
|
|
|
1319 ngx_int_t rc;
|
|
58
|
1320 ngx_uint_t i, n, key;
|
|
26
|
1321 ngx_http_server_name_t *name;
|
|
56
|
1322 ngx_http_core_loc_conf_t *clcf;
|
|
26
|
1323 ngx_http_core_srv_conf_t *cscf;
|
|
56
|
1324 ngx_http_core_main_conf_t *cmcf;
|
|
26
|
1325
|
|
|
1326 if (r->virtual_names->hash) {
|
|
|
1327 cmcf = ngx_http_get_module_main_conf(r, ngx_http_core_module);
|
|
|
1328
|
|
|
1329 ngx_http_server_names_hash_key(key,
|
|
|
1330 r->headers_in.host->value.data,
|
|
|
1331 r->headers_in.host_name_len,
|
|
|
1332 cmcf->server_names_hash);
|
|
|
1333
|
|
|
1334 name = r->virtual_names->hash[key].elts;
|
|
|
1335 n = r->virtual_names->hash[key].nelts;
|
|
|
1336
|
|
|
1337 } else {
|
|
|
1338 name = r->virtual_names->names.elts;
|
|
|
1339 n = r->virtual_names->names.nelts;
|
|
|
1340 }
|
|
|
1341
|
|
|
1342 for (i = 0; i < n; i++) {
|
|
|
1343
|
|
|
1344 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1345 "server name: %V", &name[i].name);
|
|
|
1346
|
|
|
1347 if (r->headers_in.host_name_len != name[i].name.len) {
|
|
|
1348 continue;
|
|
|
1349 }
|
|
|
1350
|
|
|
1351 rc = ngx_strncmp(r->headers_in.host->value.data,
|
|
|
1352 name[i].name.data, name[i].name.len);
|
|
|
1353
|
|
|
1354 if (rc == 0) {
|
|
|
1355 r->server_name = name[i].name;
|
|
58
|
1356 goto found;
|
|
26
|
1357 }
|
|
|
1358
|
|
|
1359 if (rc < 0) {
|
|
|
1360 /* the server names are lexicographically sorted */
|
|
|
1361 break;
|
|
|
1362 }
|
|
|
1363 }
|
|
|
1364
|
|
58
|
1365 if (r->virtual_names->wildcards.nelts) {
|
|
26
|
1366
|
|
|
1367 name = r->virtual_names->wildcards.elts;
|
|
|
1368 for (i = 0; i < r->virtual_names->wildcards.nelts; i++) {
|
|
|
1369
|
|
|
1370 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1371 "server name: %V", &name[i].name);
|
|
|
1372
|
|
|
1373 if (r->headers_in.host_name_len <= name[i].name.len) {
|
|
|
1374 continue;
|
|
|
1375 }
|
|
|
1376
|
|
|
1377 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1378 "server name: %s",
|
|
|
1379 r->headers_in.host->value.data
|
|
|
1380 + (r->headers_in.host_name_len - name[i].name.len));
|
|
|
1381
|
|
|
1382 if (ngx_strncmp(r->headers_in.host->value.data
|
|
|
1383 + (r->headers_in.host_name_len - name[i].name.len),
|
|
|
1384 name[i].name.data, name[i].name.len) == 0)
|
|
|
1385 {
|
|
|
1386 r->server_name.len = r->headers_in.host_name_len;
|
|
|
1387 r->server_name.data = r->headers_in.host->value.data;
|
|
|
1388
|
|
58
|
1389 goto found;
|
|
26
|
1390 }
|
|
|
1391 }
|
|
|
1392 }
|
|
|
1393
|
|
58
|
1394 cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
|
|
|
1395
|
|
|
1396 if (cscf->restrict_host_names == NGX_HTTP_RESTRICT_HOST_OFF) {
|
|
26
|
1397 return NGX_OK;
|
|
|
1398 }
|
|
|
1399
|
|
58
|
1400 return NGX_ERROR;
|
|
|
1401
|
|
|
1402 found:
|
|
|
1403
|
|
|
1404 r->srv_conf = name[i].core_srv_conf->ctx->srv_conf;
|
|
|
1405 r->loc_conf = name[i].core_srv_conf->ctx->loc_conf;
|
|
|
1406
|
|
|
1407 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
1408 r->connection->log->file = clcf->err_log->file;
|
|
|
1409
|
|
|
1410 if (!(r->connection->log->log_level & NGX_LOG_DEBUG_CONNECTION)) {
|
|
|
1411 r->connection->log->log_level = clcf->err_log->log_level;
|
|
26
|
1412 }
|
|
|
1413
|
|
|
1414 return NGX_OK;
|
|
|
1415 }
|
|
|
1416
|
|
|
1417
|
|
58
|
1418 static void
|
|
|
1419 ngx_http_request_handler(ngx_event_t *ev)
|
|
|
1420 {
|
|
|
1421 ngx_connection_t *c;
|
|
|
1422 ngx_http_request_t *r;
|
|
|
1423
|
|
|
1424 c = ev->data;
|
|
|
1425 r = c->data;
|
|
|
1426
|
|
|
1427 if (ev->write) {
|
|
|
1428 r->write_event_handler(r);
|
|
|
1429
|
|
|
1430 } else {
|
|
|
1431 r->read_event_handler(r);
|
|
|
1432 }
|
|
|
1433 }
|
|
|
1434
|
|
|
1435
|
|
50
|
1436 void
|
|
58
|
1437 ngx_http_finalize_request(ngx_http_request_t *r, ngx_int_t rc)
|
|
0
|
1438 {
|
|
58
|
1439 ngx_http_request_t *pr;
|
|
0
|
1440 ngx_http_core_loc_conf_t *clcf;
|
|
|
1441
|
|
58
|
1442 if (rc == NGX_DONE) {
|
|
|
1443 /* r may be already destroyed when rc == NGX_DONE */
|
|
|
1444 return;
|
|
|
1445 }
|
|
|
1446
|
|
|
1447 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1448 "http finalize request: %d, \"%V\"", rc, &r->uri);
|
|
|
1449
|
|
60
|
1450 if (r->parent
|
|
|
1451 && (rc >= NGX_HTTP_SPECIAL_RESPONSE || rc == NGX_HTTP_NO_CONTENT))
|
|
|
1452 {
|
|
58
|
1453 ngx_http_finalize_request(r, ngx_http_special_response_handler(r, rc));
|
|
0
|
1454 return;
|
|
|
1455 }
|
|
|
1456
|
|
58
|
1457 if (r->parent || rc == NGX_AGAIN) {
|
|
74
|
1458 if (ngx_http_set_write_handler(r) != NGX_OK) {
|
|
|
1459 return;
|
|
|
1460 }
|
|
58
|
1461 }
|
|
|
1462
|
|
|
1463 r->done = 1;
|
|
|
1464
|
|
|
1465 if (r != r->connection->data) {
|
|
76
|
1466 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1467 "http finalize non-active request: \"%V\"", &r->uri);
|
|
58
|
1468 return;
|
|
|
1469 }
|
|
|
1470
|
|
|
1471 if (r->parent) {
|
|
|
1472
|
|
|
1473 pr = r->parent;
|
|
|
1474
|
|
76
|
1475 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1476 "http parent request: \"%V\"", &pr->uri);
|
|
|
1477
|
|
58
|
1478 if (rc != NGX_AGAIN) {
|
|
|
1479 pr->connection->data = pr;
|
|
|
1480 }
|
|
|
1481
|
|
|
1482 if (pr->postponed) {
|
|
|
1483
|
|
76
|
1484 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1485 "http request: \"%V\" has postponed", &pr->uri);
|
|
|
1486
|
|
58
|
1487 if (rc != NGX_AGAIN && pr->postponed->request == r) {
|
|
|
1488 pr->postponed = pr->postponed->next;
|
|
|
1489
|
|
|
1490 if (pr->postponed == NULL) {
|
|
|
1491 return;
|
|
|
1492 }
|
|
|
1493 }
|
|
|
1494
|
|
76
|
1495 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1496 "http request: \"%V\" still has postponed",
|
|
|
1497 &pr->uri);
|
|
|
1498
|
|
58
|
1499 if (pr->done) {
|
|
|
1500 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
76
|
1501 "http wake parent request: \"%V\"", &pr->uri);
|
|
58
|
1502
|
|
|
1503 pr->write_event_handler(pr);
|
|
|
1504 }
|
|
|
1505 }
|
|
|
1506
|
|
|
1507 return;
|
|
|
1508 }
|
|
0
|
1509
|
|
60
|
1510 if (rc >= NGX_HTTP_SPECIAL_RESPONSE || rc == NGX_HTTP_NO_CONTENT) {
|
|
0
|
1511
|
|
|
1512 if (r->connection->read->timer_set) {
|
|
|
1513 ngx_del_timer(r->connection->read);
|
|
|
1514 }
|
|
|
1515
|
|
|
1516 if (r->connection->write->timer_set) {
|
|
|
1517 ngx_del_timer(r->connection->write);
|
|
|
1518 }
|
|
|
1519
|
|
76
|
1520 if (r->connection->closed) {
|
|
0
|
1521 ngx_http_close_request(r, 0);
|
|
|
1522 ngx_http_close_connection(r->connection);
|
|
|
1523 return;
|
|
|
1524 }
|
|
|
1525
|
|
|
1526 ngx_http_finalize_request(r, ngx_http_special_response_handler(r, rc));
|
|
|
1527
|
|
|
1528 return;
|
|
76
|
1529 }
|
|
|
1530
|
|
|
1531 if (rc == NGX_ERROR || r->connection->closed) {
|
|
0
|
1532 ngx_http_close_request(r, 0);
|
|
|
1533 ngx_http_close_connection(r->connection);
|
|
|
1534 return;
|
|
76
|
1535 }
|
|
|
1536
|
|
|
1537 if (rc == NGX_AGAIN || r->out) {
|
|
74
|
1538 (void) ngx_http_set_write_handler(r);
|
|
0
|
1539 return;
|
|
|
1540 }
|
|
|
1541
|
|
|
1542 if (r->connection->read->timer_set) {
|
|
|
1543 ngx_del_timer(r->connection->read);
|
|
|
1544 }
|
|
|
1545
|
|
|
1546 if (r->connection->write->timer_set) {
|
|
|
1547 r->connection->write->delayed = 0;
|
|
|
1548 ngx_del_timer(r->connection->write);
|
|
|
1549 }
|
|
|
1550
|
|
|
1551 if (r->connection->read->pending_eof) {
|
|
22
|
1552 #if (NGX_HAVE_KQUEUE)
|
|
0
|
1553 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log,
|
|
|
1554 r->connection->read->kq_errno,
|
|
|
1555 "kevent() reported about an closed connection");
|
|
|
1556 #endif
|
|
|
1557 ngx_http_close_request(r, 0);
|
|
|
1558 ngx_http_close_connection(r->connection);
|
|
|
1559 return;
|
|
|
1560 }
|
|
|
1561
|
|
|
1562 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
1563
|
|
|
1564 if (!ngx_terminate
|
|
|
1565 && !ngx_exiting
|
|
|
1566 && r->keepalive != 0
|
|
|
1567 && clcf->keepalive_timeout > 0)
|
|
|
1568 {
|
|
|
1569 ngx_http_set_keepalive(r);
|
|
|
1570 return;
|
|
|
1571
|
|
|
1572 } else if (r->lingering_close && clcf->lingering_timeout > 0) {
|
|
|
1573 ngx_http_set_lingering_close(r);
|
|
|
1574 return;
|
|
|
1575 }
|
|
|
1576
|
|
|
1577 ngx_http_close_request(r, 0);
|
|
|
1578 ngx_http_close_connection(r->connection);
|
|
|
1579 }
|
|
|
1580
|
|
|
1581
|
|
74
|
1582 static ngx_int_t
|
|
50
|
1583 ngx_http_set_write_handler(ngx_http_request_t *r)
|
|
0
|
1584 {
|
|
|
1585 ngx_event_t *wev;
|
|
|
1586 ngx_http_core_loc_conf_t *clcf;
|
|
|
1587
|
|
58
|
1588 r->http_state = NGX_HTTP_WRITING_REQUEST_STATE;
|
|
|
1589
|
|
74
|
1590 r->write_event_handler = ngx_http_writer;
|
|
|
1591
|
|
76
|
1592 if (r->connection->closed) {
|
|
|
1593 return NGX_OK;
|
|
|
1594 }
|
|
|
1595
|
|
0
|
1596 wev = r->connection->write;
|
|
|
1597
|
|
|
1598 if (wev->ready && wev->delayed) {
|
|
74
|
1599 return NGX_OK;
|
|
0
|
1600 }
|
|
|
1601
|
|
58
|
1602 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
0
|
1603 if (!wev->delayed) {
|
|
|
1604 ngx_add_timer(wev, clcf->send_timeout);
|
|
|
1605 }
|
|
|
1606
|
|
2
|
1607 if (ngx_handle_write_event(wev, clcf->send_lowat) == NGX_ERROR) {
|
|
0
|
1608 ngx_http_close_request(r, 0);
|
|
|
1609 ngx_http_close_connection(r->connection);
|
|
74
|
1610 return NGX_ERROR;
|
|
0
|
1611 }
|
|
74
|
1612
|
|
|
1613 return NGX_OK;
|
|
0
|
1614 }
|
|
|
1615
|
|
|
1616
|
|
58
|
1617 static void
|
|
|
1618 ngx_http_writer(ngx_http_request_t *r)
|
|
0
|
1619 {
|
|
|
1620 int rc;
|
|
58
|
1621 ngx_event_t *wev;
|
|
0
|
1622 ngx_connection_t *c;
|
|
|
1623 ngx_http_core_loc_conf_t *clcf;
|
|
|
1624
|
|
58
|
1625 c = r->connection;
|
|
|
1626 wev = c->write;
|
|
|
1627
|
|
|
1628 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, wev->log, 0,
|
|
|
1629 "http writer handler: \"%V\"", &r->uri);
|
|
0
|
1630
|
|
|
1631 if (wev->timedout) {
|
|
|
1632 if (!wev->delayed) {
|
|
54
|
1633 ngx_log_error(NGX_LOG_INFO, c->log, NGX_ETIMEDOUT,
|
|
|
1634 "client timed out");
|
|
|
1635 c->timedout = 1;
|
|
|
1636 ngx_http_close_request(r, NGX_HTTP_REQUEST_TIME_OUT);
|
|
|
1637 ngx_http_close_connection(c);
|
|
0
|
1638 return;
|
|
|
1639 }
|
|
|
1640
|
|
|
1641 wev->timedout = 0;
|
|
|
1642 wev->delayed = 0;
|
|
|
1643
|
|
|
1644 if (!wev->ready) {
|
|
|
1645 clcf = ngx_http_get_module_loc_conf(r->main ? r->main : r,
|
|
|
1646 ngx_http_core_module);
|
|
|
1647 ngx_add_timer(wev, clcf->send_timeout);
|
|
|
1648
|
|
2
|
1649 if (ngx_handle_write_event(wev, clcf->send_lowat) == NGX_ERROR) {
|
|
0
|
1650 ngx_http_close_request(r, 0);
|
|
|
1651 ngx_http_close_connection(r->connection);
|
|
|
1652 }
|
|
|
1653
|
|
|
1654 return;
|
|
|
1655 }
|
|
|
1656
|
|
|
1657 } else {
|
|
|
1658 if (wev->delayed) {
|
|
|
1659 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, wev->log, 0,
|
|
|
1660 "http writer delayed");
|
|
|
1661
|
|
|
1662 clcf = ngx_http_get_module_loc_conf(r->main ? r->main : r,
|
|
|
1663 ngx_http_core_module);
|
|
2
|
1664
|
|
|
1665 if (ngx_handle_write_event(wev, clcf->send_lowat) == NGX_ERROR) {
|
|
0
|
1666 ngx_http_close_request(r, 0);
|
|
|
1667 ngx_http_close_connection(r->connection);
|
|
|
1668 }
|
|
|
1669
|
|
|
1670 return;
|
|
|
1671 }
|
|
|
1672 }
|
|
|
1673
|
|
58
|
1674 if (r->postponed) {
|
|
|
1675 rc = ngx_http_postponed_handler(r);
|
|
|
1676
|
|
|
1677 if (rc == NGX_DONE) {
|
|
|
1678 /* r may be already destroyed when rc == NGX_DONE */
|
|
|
1679 return;
|
|
|
1680 }
|
|
|
1681
|
|
|
1682 } else {
|
|
|
1683 rc = ngx_http_output_filter(r, NULL);
|
|
|
1684
|
|
|
1685 }
|
|
|
1686
|
|
|
1687 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
|
1688 "http writer output filter: %d, \"%V\"", rc, &r->uri);
|
|
0
|
1689
|
|
|
1690 if (rc == NGX_AGAIN) {
|
|
|
1691 clcf = ngx_http_get_module_loc_conf(r->main ? r->main : r,
|
|
|
1692 ngx_http_core_module);
|
|
|
1693 if (!wev->ready && !wev->delayed) {
|
|
|
1694 ngx_add_timer(wev, clcf->send_timeout);
|
|
|
1695 }
|
|
|
1696
|
|
2
|
1697 if (ngx_handle_write_event(wev, clcf->send_lowat) == NGX_ERROR) {
|
|
0
|
1698 ngx_http_close_request(r, 0);
|
|
|
1699 ngx_http_close_connection(r->connection);
|
|
|
1700 }
|
|
|
1701
|
|
|
1702 return;
|
|
|
1703 }
|
|
|
1704
|
|
58
|
1705 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, wev->log, 0,
|
|
|
1706 "http writer done: \"%V\"", &r->uri);
|
|
0
|
1707
|
|
|
1708 ngx_http_finalize_request(r, rc);
|
|
|
1709 }
|
|
|
1710
|
|
|
1711
|
|
58
|
1712 static ngx_int_t
|
|
|
1713 ngx_http_postponed_handler(ngx_http_request_t *r)
|
|
|
1714 {
|
|
|
1715 ngx_int_t rc;
|
|
|
1716 ngx_http_postponed_request_t *pr;
|
|
|
1717
|
|
|
1718 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1719 "http postpone handler \"%V\"", &r->uri);
|
|
|
1720
|
|
|
1721 pr = r->postponed;
|
|
|
1722
|
|
|
1723 if (pr->request == NULL) {
|
|
|
1724 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1725 "http postponed data \"%V\" %p", &r->uri, pr->out);
|
|
|
1726
|
|
|
1727 rc = ngx_http_output_filter(r, NULL);
|
|
|
1728
|
|
|
1729 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
76
|
1730 "http postponed output filter: %d", rc);
|
|
58
|
1731
|
|
|
1732 if (rc == NGX_AGAIN) {
|
|
|
1733 return rc;
|
|
|
1734 }
|
|
|
1735
|
|
76
|
1736 /*
|
|
|
1737 * we treat NGX_ERROR as NGX_OK, because we need to complete
|
|
|
1738 * all postponed requests
|
|
|
1739 */
|
|
58
|
1740
|
|
|
1741 pr = r->postponed;
|
|
|
1742
|
|
|
1743 if (pr == NULL) {
|
|
|
1744 return NGX_OK;
|
|
|
1745 }
|
|
|
1746 }
|
|
|
1747
|
|
|
1748 r = pr->request;
|
|
|
1749 r->connection->data = r;
|
|
|
1750
|
|
|
1751 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
76
|
1752 "http wake child request \"%V\"", &r->uri);
|
|
58
|
1753
|
|
|
1754 r->write_event_handler(r);
|
|
|
1755
|
|
|
1756 return NGX_DONE;
|
|
|
1757 }
|
|
|
1758
|
|
|
1759
|
|
50
|
1760 static void
|
|
58
|
1761 ngx_http_block_read(ngx_http_request_t *r)
|
|
0
|
1762 {
|
|
58
|
1763 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1764 "http read blocked");
|
|
0
|
1765
|
|
|
1766 /* aio does not call this handler */
|
|
|
1767
|
|
58
|
1768 if ((ngx_event_flags & NGX_USE_LEVEL_EVENT)
|
|
|
1769 && r->connection->read->active)
|
|
|
1770 {
|
|
|
1771 if (ngx_del_event(r->connection->read, NGX_READ_EVENT, 0)
|
|
|
1772 == NGX_ERROR)
|
|
|
1773 {
|
|
0
|
1774 ngx_http_close_request(r, 0);
|
|
58
|
1775 ngx_http_close_connection(r->connection);
|
|
0
|
1776 }
|
|
|
1777 }
|
|
|
1778 }
|
|
|
1779
|
|
|
1780
|
|
50
|
1781 ngx_int_t
|
|
|
1782 ngx_http_discard_body(ngx_http_request_t *r)
|
|
0
|
1783 {
|
|
|
1784 ssize_t size;
|
|
|
1785 ngx_event_t *rev;
|
|
|
1786
|
|
70
|
1787 if (r->main) {
|
|
|
1788 return NGX_OK;
|
|
|
1789 }
|
|
|
1790
|
|
0
|
1791 rev = r->connection->read;
|
|
|
1792
|
|
|
1793 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, rev->log, 0, "http set discard body");
|
|
|
1794
|
|
|
1795 if (rev->timer_set) {
|
|
|
1796 ngx_del_timer(rev);
|
|
|
1797 }
|
|
|
1798
|
|
|
1799 if (r->headers_in.content_length_n <= 0) {
|
|
|
1800 return NGX_OK;
|
|
|
1801 }
|
|
|
1802
|
|
86
|
1803 r->discard_body = 1;
|
|
|
1804
|
|
0
|
1805 size = r->header_in->last - r->header_in->pos;
|
|
|
1806
|
|
|
1807 if (size) {
|
|
|
1808 if (r->headers_in.content_length_n > size) {
|
|
|
1809 r->headers_in.content_length_n -= size;
|
|
|
1810
|
|
|
1811 } else {
|
|
|
1812 r->header_in->pos += r->headers_in.content_length_n;
|
|
|
1813 r->headers_in.content_length_n = 0;
|
|
|
1814 return NGX_OK;
|
|
|
1815 }
|
|
|
1816 }
|
|
|
1817
|
|
58
|
1818 r->read_event_handler = ngx_http_read_discarded_body_handler;
|
|
|
1819
|
|
|
1820 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) {
|
|
0
|
1821 return NGX_HTTP_INTERNAL_SERVER_ERROR;
|
|
|
1822 }
|
|
|
1823
|
|
|
1824 return ngx_http_read_discarded_body(r);
|
|
|
1825 }
|
|
|
1826
|
|
|
1827
|
|
50
|
1828 static void
|
|
58
|
1829 ngx_http_read_discarded_body_handler(ngx_http_request_t *r)
|
|
0
|
1830 {
|
|
58
|
1831 ngx_int_t rc;
|
|
0
|
1832
|
|
|
1833 rc = ngx_http_read_discarded_body(r);
|
|
|
1834
|
|
|
1835 if (rc == NGX_AGAIN) {
|
|
58
|
1836 if (ngx_handle_read_event(r->connection->read, 0) == NGX_ERROR) {
|
|
0
|
1837 ngx_http_close_request(r, rc);
|
|
58
|
1838 ngx_http_close_connection(r->connection);
|
|
0
|
1839 return;
|
|
|
1840 }
|
|
|
1841 }
|
|
|
1842
|
|
|
1843 if (rc != NGX_OK) {
|
|
|
1844 ngx_http_close_request(r, rc);
|
|
58
|
1845 ngx_http_close_connection(r->connection);
|
|
0
|
1846 }
|
|
|
1847 }
|
|
|
1848
|
|
|
1849
|
|
50
|
1850 static ngx_int_t
|
|
|
1851 ngx_http_read_discarded_body(ngx_http_request_t *r)
|
|
0
|
1852 {
|
|
|
1853 ssize_t size, n;
|
|
|
1854 u_char buffer[NGX_HTTP_DISCARD_BUFFER_SIZE];
|
|
|
1855
|
|
|
1856 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1857 "http read discarded body");
|
|
|
1858
|
|
|
1859 if (r->headers_in.content_length_n == 0) {
|
|
|
1860 return NGX_OK;
|
|
|
1861 }
|
|
|
1862
|
|
|
1863
|
|
|
1864 size = r->headers_in.content_length_n;
|
|
|
1865
|
|
|
1866 if (size > NGX_HTTP_DISCARD_BUFFER_SIZE) {
|
|
|
1867 size = NGX_HTTP_DISCARD_BUFFER_SIZE;
|
|
|
1868 }
|
|
|
1869
|
|
|
1870 n = r->connection->recv(r->connection, buffer, size);
|
|
|
1871
|
|
|
1872 if (n == NGX_ERROR) {
|
|
|
1873
|
|
76
|
1874 r->connection->closed = 1;
|
|
0
|
1875
|
|
|
1876 /*
|
|
|
1877 * if a client request body is discarded then we already set
|
|
|
1878 * some HTTP response code for client and we can ignore the error
|
|
|
1879 */
|
|
|
1880
|
|
|
1881 return NGX_OK;
|
|
|
1882 }
|
|
|
1883
|
|
|
1884 if (n == NGX_AGAIN) {
|
|
|
1885 return NGX_AGAIN;
|
|
|
1886 }
|
|
|
1887
|
|
|
1888 r->headers_in.content_length_n -= n;
|
|
|
1889
|
|
|
1890 return NGX_OK;
|
|
|
1891 }
|
|
|
1892
|
|
|
1893
|
|
50
|
1894 static void
|
|
|
1895 ngx_http_set_keepalive(ngx_http_request_t *r)
|
|
0
|
1896 {
|
|
2
|
1897 int tcp_nodelay;
|
|
0
|
1898 ngx_int_t i;
|
|
|
1899 ngx_buf_t *b, *f;
|
|
|
1900 ngx_event_t *rev, *wev;
|
|
|
1901 ngx_connection_t *c;
|
|
|
1902 ngx_http_connection_t *hc;
|
|
|
1903 ngx_http_core_srv_conf_t *cscf;
|
|
|
1904 ngx_http_core_loc_conf_t *clcf;
|
|
|
1905
|
|
|
1906 c = r->connection;
|
|
|
1907 rev = c->read;
|
|
|
1908
|
|
|
1909 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "set http keepalive handler");
|
|
|
1910
|
|
32
|
1911 c->log->action = "closing request";
|
|
0
|
1912
|
|
|
1913 hc = r->http_connection;
|
|
|
1914 b = r->header_in;
|
|
|
1915
|
|
|
1916 if (b->pos < b->last) {
|
|
|
1917
|
|
|
1918 /* the pipelined request */
|
|
|
1919
|
|
|
1920 if (b != c->buffer) {
|
|
|
1921
|
|
4
|
1922 /*
|
|
|
1923 * If the large header buffers were allocated while the previous
|
|
|
1924 * request processing then we do not use c->buffer for
|
|
|
1925 * the pipelined request (see ngx_http_init_request()).
|
|
|
1926 *
|
|
|
1927 * Now we would move the large header buffers to the free list.
|
|
|
1928 */
|
|
0
|
1929
|
|
|
1930 cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
|
|
|
1931
|
|
|
1932 if (hc->free == NULL) {
|
|
|
1933 hc->free = ngx_palloc(c->pool,
|
|
|
1934 cscf->large_client_header_buffers.num * sizeof(ngx_buf_t *));
|
|
|
1935
|
|
|
1936 if (hc->free == NULL) {
|
|
26
|
1937 ngx_http_close_request(r, 0);
|
|
0
|
1938 ngx_http_close_connection(c);
|
|
|
1939 return;
|
|
|
1940 }
|
|
|
1941 }
|
|
|
1942
|
|
|
1943 for (i = 0; i < hc->nbusy - 1; i++) {
|
|
|
1944 f = hc->busy[i];
|
|
|
1945 hc->free[hc->nfree++] = f;
|
|
|
1946 f->pos = f->start;
|
|
|
1947 f->last = f->start;
|
|
|
1948 }
|
|
|
1949
|
|
|
1950 hc->busy[0] = b;
|
|
|
1951 hc->nbusy = 1;
|
|
|
1952 }
|
|
|
1953 }
|
|
|
1954
|
|
26
|
1955 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
1956
|
|
0
|
1957 ngx_http_close_request(r, 0);
|
|
|
1958 c->data = hc;
|
|
|
1959
|
|
|
1960 ngx_add_timer(rev, clcf->keepalive_timeout);
|
|
|
1961
|
|
58
|
1962 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) {
|
|
0
|
1963 ngx_http_close_connection(c);
|
|
|
1964 return;
|
|
|
1965 }
|
|
|
1966
|
|
|
1967 wev = c->write;
|
|
58
|
1968 wev->handler = ngx_http_empty_handler;
|
|
0
|
1969
|
|
|
1970 if (b->pos < b->last) {
|
|
|
1971
|
|
|
1972 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "pipelined request");
|
|
|
1973
|
|
|
1974 hc->pipeline = 1;
|
|
32
|
1975 c->log->action = "reading client pipelined request line";
|
|
0
|
1976 ngx_http_init_request(rev);
|
|
|
1977 return;
|
|
|
1978 }
|
|
|
1979
|
|
|
1980 hc->pipeline = 0;
|
|
|
1981
|
|
4
|
1982 /*
|
|
|
1983 * To keep a memory footprint as small as possible for an idle
|
|
|
1984 * keepalive connection we try to free the ngx_http_request_t and
|
|
|
1985 * c->buffer's memory if they were allocated outside the c->pool.
|
|
|
1986 * The large header buffers are always allocated outside the c->pool and
|
|
|
1987 * are freed too.
|
|
|
1988 */
|
|
|
1989
|
|
0
|
1990 if (ngx_pfree(c->pool, r) == NGX_OK) {
|
|
|
1991 hc->request = NULL;
|
|
|
1992 }
|
|
|
1993
|
|
|
1994 b = c->buffer;
|
|
|
1995
|
|
|
1996 if (ngx_pfree(c->pool, b->start) == NGX_OK) {
|
|
4
|
1997
|
|
|
1998 /*
|
|
|
1999 * the special note for ngx_http_keepalive_handler() that
|
|
|
2000 * c->buffer's memory was freed
|
|
|
2001 */
|
|
|
2002
|
|
0
|
2003 b->pos = NULL;
|
|
|
2004
|
|
|
2005 } else {
|
|
|
2006 b->pos = b->start;
|
|
|
2007 b->last = b->start;
|
|
|
2008 }
|
|
|
2009
|
|
10
|
2010 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, c->log, 0, "hc free: %p %d",
|
|
0
|
2011 hc->free, hc->nfree);
|
|
|
2012
|
|
|
2013 if (hc->free) {
|
|
|
2014 for (i = 0; i < hc->nfree; i++) {
|
|
|
2015 ngx_pfree(c->pool, hc->free[i]);
|
|
|
2016 hc->free[i] = NULL;
|
|
|
2017 }
|
|
|
2018
|
|
|
2019 hc->nfree = 0;
|
|
|
2020 }
|
|
|
2021
|
|
10
|
2022 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, c->log, 0, "hc busy: %p %d",
|
|
0
|
2023 hc->busy, hc->nbusy);
|
|
|
2024
|
|
|
2025 if (hc->busy) {
|
|
|
2026 for (i = 0; i < hc->nbusy; i++) {
|
|
|
2027 ngx_pfree(c->pool, hc->busy[i]);
|
|
|
2028 hc->busy[i] = NULL;
|
|
|
2029 }
|
|
|
2030
|
|
|
2031 hc->nbusy = 0;
|
|
|
2032 }
|
|
|
2033
|
|
58
|
2034 rev->handler = ngx_http_keepalive_handler;
|
|
0
|
2035
|
|
|
2036 if (wev->active) {
|
|
4
|
2037 if (ngx_event_flags & NGX_USE_KQUEUE_EVENT) {
|
|
0
|
2038 if (ngx_del_event(wev, NGX_WRITE_EVENT, NGX_DISABLE_EVENT)
|
|
|
2039 == NGX_ERROR)
|
|
|
2040 {
|
|
|
2041 ngx_http_close_connection(c);
|
|
|
2042 return;
|
|
|
2043 }
|
|
|
2044
|
|
|
2045 } else if (ngx_event_flags & NGX_USE_LEVEL_EVENT) {
|
|
|
2046 if (ngx_del_event(wev, NGX_WRITE_EVENT, 0) == NGX_ERROR) {
|
|
|
2047 ngx_http_close_connection(c);
|
|
|
2048 return;
|
|
|
2049 }
|
|
|
2050 }
|
|
|
2051 }
|
|
|
2052
|
|
32
|
2053 c->log->action = "keepalive";
|
|
0
|
2054
|
|
|
2055 if (c->tcp_nopush == NGX_TCP_NOPUSH_SET) {
|
|
50
|
2056 if (ngx_tcp_push(c->fd) == -1) {
|
|
0
|
2057 ngx_connection_error(c, ngx_socket_errno, ngx_tcp_push_n " failed");
|
|
|
2058 ngx_http_close_connection(c);
|
|
|
2059 return;
|
|
|
2060 }
|
|
2
|
2061
|
|
0
|
2062 c->tcp_nopush = NGX_TCP_NOPUSH_UNSET;
|
|
22
|
2063 tcp_nodelay = ngx_tcp_nodelay_and_tcp_nopush ? 1 : 0;
|
|
2
|
2064
|
|
|
2065 } else {
|
|
22
|
2066 tcp_nodelay = 1;
|
|
|
2067 }
|
|
|
2068
|
|
32
|
2069 if (tcp_nodelay
|
|
|
2070 && clcf->tcp_nodelay
|
|
|
2071 && c->tcp_nodelay == NGX_TCP_NODELAY_UNSET)
|
|
|
2072 {
|
|
22
|
2073 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "tcp_nodelay");
|
|
|
2074
|
|
|
2075 if (setsockopt(c->fd, IPPROTO_TCP, TCP_NODELAY,
|
|
|
2076 (const void *) &tcp_nodelay, sizeof(int)) == -1)
|
|
|
2077 {
|
|
|
2078 ngx_connection_error(c, ngx_socket_errno,
|
|
|
2079 "setsockopt(TCP_NODELAY) failed");
|
|
|
2080 ngx_http_close_connection(c);
|
|
|
2081 return;
|
|
2
|
2082 }
|
|
22
|
2083
|
|
32
|
2084 c->tcp_nodelay = NGX_TCP_NODELAY_SET;
|
|
0
|
2085 }
|
|
|
2086
|
|
|
2087 #if 0
|
|
4
|
2088 /* if ngx_http_request_t was freed then we need some other place */
|
|
0
|
2089 r->http_state = NGX_HTTP_KEEPALIVE_STATE;
|
|
|
2090 #endif
|
|
|
2091
|
|
|
2092 if (rev->ready) {
|
|
|
2093 ngx_http_keepalive_handler(rev);
|
|
|
2094 }
|
|
|
2095 }
|
|
|
2096
|
|
|
2097
|
|
50
|
2098 static void
|
|
|
2099 ngx_http_keepalive_handler(ngx_event_t *rev)
|
|
0
|
2100 {
|
|
50
|
2101 size_t size;
|
|
|
2102 ssize_t n;
|
|
|
2103 ngx_buf_t *b;
|
|
|
2104 ngx_connection_t *c;
|
|
0
|
2105
|
|
|
2106 c = rev->data;
|
|
|
2107
|
|
|
2108 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "http keepalive handler");
|
|
|
2109
|
|
|
2110 if (rev->timedout) {
|
|
|
2111 ngx_http_close_connection(c);
|
|
|
2112 return;
|
|
|
2113 }
|
|
|
2114
|
|
18
|
2115 #if (NGX_HAVE_KQUEUE)
|
|
0
|
2116
|
|
4
|
2117 if (ngx_event_flags & NGX_USE_KQUEUE_EVENT) {
|
|
0
|
2118 if (rev->pending_eof) {
|
|
32
|
2119 c->log->handler = NULL;
|
|
0
|
2120 ngx_log_error(NGX_LOG_INFO, c->log, rev->kq_errno,
|
|
10
|
2121 "kevent() reported that client %V closed "
|
|
32
|
2122 "keepalive connection", &c->addr_text);
|
|
22
|
2123 #if (NGX_HTTP_SSL)
|
|
|
2124 if (c->ssl) {
|
|
|
2125 c->ssl->no_send_shut = 1;
|
|
|
2126 }
|
|
|
2127 #endif
|
|
0
|
2128 ngx_http_close_connection(c);
|
|
|
2129 return;
|
|
|
2130 }
|
|
|
2131 }
|
|
|
2132
|
|
|
2133 #endif
|
|
|
2134
|
|
|
2135 b = c->buffer;
|
|
|
2136 size = b->end - b->start;
|
|
|
2137
|
|
|
2138 if (b->pos == NULL) {
|
|
4
|
2139
|
|
|
2140 /*
|
|
|
2141 * The c->buffer's memory was freed by ngx_http_set_keepalive().
|
|
|
2142 * However, the c->buffer->start and c->buffer->end were not changed
|
|
|
2143 * to keep the buffer size.
|
|
|
2144 */
|
|
|
2145
|
|
50
|
2146 b->pos = ngx_palloc(c->pool, size);
|
|
|
2147 if (b->pos == NULL) {
|
|
0
|
2148 ngx_http_close_connection(c);
|
|
|
2149 return;
|
|
|
2150 }
|
|
|
2151
|
|
|
2152 b->start = b->pos;
|
|
|
2153 b->last = b->pos;
|
|
|
2154 b->end = b->pos + size;
|
|
|
2155 }
|
|
|
2156
|
|
|
2157 /*
|
|
|
2158 * MSIE closes a keepalive connection with RST flag
|
|
|
2159 * so we ignore ECONNRESET here.
|
|
|
2160 */
|
|
|
2161
|
|
|
2162 c->log_error = NGX_ERROR_IGNORE_ECONNRESET;
|
|
|
2163 ngx_set_socket_errno(0);
|
|
|
2164
|
|
|
2165 n = c->recv(c, b->last, size);
|
|
|
2166 c->log_error = NGX_ERROR_INFO;
|
|
|
2167
|
|
|
2168 if (n == NGX_AGAIN) {
|
|
58
|
2169 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) {
|
|
24
|
2170 ngx_http_close_connection(c);
|
|
|
2171 }
|
|
|
2172
|
|
0
|
2173 return;
|
|
|
2174 }
|
|
|
2175
|
|
|
2176 if (n == NGX_ERROR) {
|
|
|
2177 ngx_http_close_connection(c);
|
|
|
2178 return;
|
|
|
2179 }
|
|
|
2180
|
|
32
|
2181 c->log->handler = NULL;
|
|
0
|
2182
|
|
|
2183 if (n == 0) {
|
|
|
2184 ngx_log_error(NGX_LOG_INFO, c->log, ngx_socket_errno,
|
|
32
|
2185 "client %V closed keepalive connection", &c->addr_text);
|
|
0
|
2186 ngx_http_close_connection(c);
|
|
|
2187 return;
|
|
|
2188 }
|
|
|
2189
|
|
|
2190 b->last += n;
|
|
32
|
2191
|
|
|
2192 c->log->handler = ngx_http_log_error;
|
|
|
2193 c->log->action = "reading client request line";
|
|
0
|
2194
|
|
|
2195 ngx_http_init_request(rev);
|
|
|
2196 }
|
|
|
2197
|
|
|
2198
|
|
50
|
2199 static void
|
|
|
2200 ngx_http_set_lingering_close(ngx_http_request_t *r)
|
|
0
|
2201 {
|
|
|
2202 ngx_event_t *rev, *wev;
|
|
|
2203 ngx_connection_t *c;
|
|
|
2204 ngx_http_core_loc_conf_t *clcf;
|
|
|
2205
|
|
|
2206 c = r->connection;
|
|
|
2207
|
|
|
2208 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
2209
|
|
|
2210 rev = c->read;
|
|
58
|
2211 rev->handler = ngx_http_lingering_close_handler;
|
|
0
|
2212
|
|
|
2213 r->lingering_time = ngx_time() + clcf->lingering_time / 1000;
|
|
|
2214 ngx_add_timer(rev, clcf->lingering_timeout);
|
|
|
2215
|
|
58
|
2216 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) {
|
|
0
|
2217 ngx_http_close_request(r, 0);
|
|
|
2218 ngx_http_close_connection(c);
|
|
|
2219 return;
|
|
|
2220 }
|
|
|
2221
|
|
|
2222 wev = c->write;
|
|
58
|
2223 wev->handler = ngx_http_empty_handler;
|
|
0
|
2224
|
|
|
2225 if (wev->active) {
|
|
4
|
2226 if (ngx_event_flags & NGX_USE_KQUEUE_EVENT) {
|
|
0
|
2227 if (ngx_del_event(wev, NGX_WRITE_EVENT, NGX_DISABLE_EVENT)
|
|
|
2228 == NGX_ERROR)
|
|
|
2229 {
|
|
26
|
2230 ngx_http_close_request(r, 0);
|
|
0
|
2231 ngx_http_close_connection(c);
|
|
|
2232 return;
|
|
|
2233 }
|
|
|
2234
|
|
|
2235 } else if (ngx_event_flags & NGX_USE_LEVEL_EVENT) {
|
|
|
2236 if (ngx_del_event(wev, NGX_WRITE_EVENT, 0) == NGX_ERROR) {
|
|
26
|
2237 ngx_http_close_request(r, 0);
|
|
0
|
2238 ngx_http_close_connection(c);
|
|
|
2239 return;
|
|
|
2240 }
|
|
|
2241 }
|
|
|
2242 }
|
|
|
2243
|
|
|
2244 if (ngx_shutdown_socket(c->fd, NGX_WRITE_SHUTDOWN) == -1) {
|
|
|
2245 ngx_connection_error(c, ngx_socket_errno,
|
|
|
2246 ngx_shutdown_socket_n " failed");
|
|
|
2247 ngx_http_close_request(r, 0);
|
|
|
2248 ngx_http_close_connection(c);
|
|
|
2249 return;
|
|
|
2250 }
|
|
|
2251
|
|
|
2252 if (rev->ready) {
|
|
|
2253 ngx_http_lingering_close_handler(rev);
|
|
|
2254 }
|
|
|
2255 }
|
|
|
2256
|
|
|
2257
|
|
50
|
2258 static void
|
|
|
2259 ngx_http_lingering_close_handler(ngx_event_t *rev)
|
|
0
|
2260 {
|
|
|
2261 ssize_t n;
|
|
|
2262 ngx_msec_t timer;
|
|
|
2263 ngx_connection_t *c;
|
|
|
2264 ngx_http_request_t *r;
|
|
|
2265 ngx_http_core_loc_conf_t *clcf;
|
|
|
2266 u_char buffer[NGX_HTTP_LINGERING_BUFFER_SIZE];
|
|
|
2267
|
|
|
2268 c = rev->data;
|
|
|
2269 r = c->data;
|
|
|
2270
|
|
|
2271 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
|
2272 "http lingering close handler");
|
|
|
2273
|
|
|
2274 if (rev->timedout) {
|
|
|
2275 ngx_http_close_request(r, 0);
|
|
|
2276 ngx_http_close_connection(c);
|
|
|
2277 return;
|
|
|
2278 }
|
|
|
2279
|
|
|
2280 timer = r->lingering_time - ngx_time();
|
|
|
2281 if (timer <= 0) {
|
|
|
2282 ngx_http_close_request(r, 0);
|
|
|
2283 ngx_http_close_connection(c);
|
|
|
2284 return;
|
|
|
2285 }
|
|
|
2286
|
|
|
2287 do {
|
|
|
2288 n = c->recv(c, buffer, NGX_HTTP_LINGERING_BUFFER_SIZE);
|
|
|
2289
|
|
|
2290 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0, "lingering read: %d", n);
|
|
|
2291
|
|
|
2292 if (n == NGX_ERROR || n == 0) {
|
|
|
2293 ngx_http_close_request(r, 0);
|
|
|
2294 ngx_http_close_connection(c);
|
|
|
2295 return;
|
|
|
2296 }
|
|
|
2297
|
|
|
2298 } while (rev->ready);
|
|
|
2299
|
|
58
|
2300 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) {
|
|
26
|
2301 ngx_http_close_request(r, 0);
|
|
24
|
2302 ngx_http_close_connection(c);
|
|
|
2303 return;
|
|
|
2304 }
|
|
|
2305
|
|
0
|
2306 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
2307
|
|
|
2308 timer *= 1000;
|
|
|
2309
|
|
|
2310 if (timer > clcf->lingering_timeout) {
|
|
|
2311 timer = clcf->lingering_timeout;
|
|
|
2312 }
|
|
|
2313
|
|
|
2314 ngx_add_timer(rev, timer);
|
|
|
2315 }
|
|
|
2316
|
|
|
2317
|
|
50
|
2318 void
|
|
|
2319 ngx_http_empty_handler(ngx_event_t *wev)
|
|
0
|
2320 {
|
|
|
2321 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, wev->log, 0, "http empty handler");
|
|
|
2322
|
|
|
2323 return;
|
|
|
2324 }
|
|
|
2325
|
|
|
2326
|
|
58
|
2327 void
|
|
|
2328 ngx_http_request_empty_handler(ngx_http_request_t *r)
|
|
|
2329 {
|
|
|
2330 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
2331 "http requets empty handler");
|
|
|
2332
|
|
|
2333 return;
|
|
|
2334 }
|
|
|
2335
|
|
|
2336
|
|
50
|
2337 ngx_int_t
|
|
|
2338 ngx_http_send_last(ngx_http_request_t *r)
|
|
0
|
2339 {
|
|
|
2340 ngx_buf_t *b;
|
|
|
2341 ngx_chain_t out;
|
|
|
2342
|
|
50
|
2343 b = ngx_calloc_buf(r->pool);
|
|
|
2344 if (b == NULL) {
|
|
0
|
2345 return NGX_ERROR;
|
|
|
2346 }
|
|
|
2347
|
|
|
2348 b->last_buf = 1;
|
|
|
2349 out.buf = b;
|
|
|
2350 out.next = NULL;
|
|
|
2351
|
|
|
2352 return ngx_http_output_filter(r, &out);
|
|
|
2353 }
|
|
|
2354
|
|
|
2355
|
|
50
|
2356 void
|
|
58
|
2357 ngx_http_close_request(ngx_http_request_t *r, ngx_int_t error)
|
|
0
|
2358 {
|
|
|
2359 ngx_log_t *log;
|
|
58
|
2360 struct linger linger;
|
|
0
|
2361 ngx_http_log_ctx_t *ctx;
|
|
|
2362 ngx_http_core_loc_conf_t *clcf;
|
|
|
2363
|
|
|
2364 log = r->connection->log;
|
|
|
2365
|
|
|
2366 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, log, 0, "http close request");
|
|
|
2367
|
|
|
2368 if (r->pool == NULL) {
|
|
80
|
2369 ngx_log_error(NGX_LOG_ALERT, log, 0, "http request already closed");
|
|
0
|
2370 return;
|
|
|
2371 }
|
|
|
2372
|
|
|
2373 #if (NGX_STAT_STUB)
|
|
|
2374 if (r->stat_reading) {
|
|
42
|
2375 ngx_atomic_dec(ngx_stat_reading);
|
|
0
|
2376 }
|
|
|
2377
|
|
|
2378 if (r->stat_writing) {
|
|
42
|
2379 ngx_atomic_dec(ngx_stat_writing);
|
|
0
|
2380 }
|
|
|
2381 #endif
|
|
|
2382
|
|
|
2383 if (error && r->headers_out.status == 0) {
|
|
|
2384 r->headers_out.status = error;
|
|
|
2385 }
|
|
|
2386
|
|
|
2387 ngx_http_log_handler(r);
|
|
|
2388
|
|
|
2389 if (r->connection->timedout) {
|
|
|
2390 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
2391
|
|
|
2392 if (clcf->reset_timedout_connection) {
|
|
58
|
2393 linger.l_onoff = 1;
|
|
|
2394 linger.l_linger = 0;
|
|
0
|
2395
|
|
|
2396 if (setsockopt(r->connection->fd, SOL_SOCKET, SO_LINGER,
|
|
58
|
2397 (const void *) &linger, sizeof(struct linger)) == -1)
|
|
0
|
2398 {
|
|
|
2399 ngx_log_error(NGX_LOG_ALERT, log, ngx_socket_errno,
|
|
|
2400 "setsockopt(SO_LINGER) failed");
|
|
|
2401 }
|
|
|
2402 }
|
|
|
2403 }
|
|
|
2404
|
|
58
|
2405 /* the various request strings were allocated from r->pool */
|
|
0
|
2406 ctx = log->data;
|
|
10
|
2407 ctx->request = NULL;
|
|
0
|
2408
|
|
|
2409 r->request_line.len = 0;
|
|
|
2410
|
|
|
2411 ngx_destroy_pool(r->pool);
|
|
|
2412 }
|
|
|
2413
|
|
|
2414
|
|
|
2415 #if (NGX_HTTP_SSL)
|
|
|
2416
|
|
80
|
2417 static void
|
|
|
2418 ngx_http_ssl_close_handler(ngx_event_t *ev)
|
|
0
|
2419 {
|
|
|
2420 ngx_connection_t *c;
|
|
|
2421
|
|
|
2422 c = ev->data;
|
|
|
2423
|
|
|
2424 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, ev->log, 0, "http ssl close handler");
|
|
|
2425
|
|
|
2426 if (ngx_ssl_shutdown(c) == NGX_AGAIN) {
|
|
|
2427 return;
|
|
|
2428 }
|
|
|
2429
|
|
|
2430 ngx_http_close_connection(c);
|
|
|
2431 }
|
|
|
2432
|
|
|
2433 #endif
|
|
|
2434
|
|
|
2435
|
|
80
|
2436 static void
|
|
50
|
2437 ngx_http_close_connection(ngx_connection_t *c)
|
|
0
|
2438 {
|
|
28
|
2439 ngx_pool_t *pool;
|
|
|
2440
|
|
0
|
2441 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
|
2442 "close http connection: %d", c->fd);
|
|
|
2443
|
|
2
|
2444 #if (NGX_OPENSSL)
|
|
|
2445
|
|
|
2446 if (c->ssl) {
|
|
|
2447 if (ngx_ssl_shutdown(c) == NGX_AGAIN) {
|
|
80
|
2448 c->read->handler = ngx_http_ssl_close_handler;
|
|
|
2449 c->write->handler = ngx_http_ssl_close_handler;
|
|
2
|
2450 return;
|
|
|
2451 }
|
|
|
2452 }
|
|
|
2453
|
|
|
2454 #endif
|
|
|
2455
|
|
0
|
2456 #if (NGX_STAT_STUB)
|
|
42
|
2457 ngx_atomic_dec(ngx_stat_active);
|
|
0
|
2458 #endif
|
|
|
2459
|
|
28
|
2460 pool = c->pool;
|
|
|
2461
|
|
0
|
2462 ngx_close_connection(c);
|
|
28
|
2463
|
|
50
|
2464 ngx_destroy_pool(pool);
|
|
0
|
2465 }
|
|
|
2466
|
|
|
2467
|
|
50
|
2468 static u_char *
|
|
|
2469 ngx_http_log_error(ngx_log_t *log, u_char *buf, size_t len)
|
|
0
|
2470 {
|
|
32
|
2471 u_char *p;
|
|
54
|
2472 ngx_http_request_t *r;
|
|
32
|
2473 ngx_http_log_ctx_t *ctx;
|
|
10
|
2474
|
|
32
|
2475 if (log->action) {
|
|
58
|
2476 p = ngx_snprintf(buf, len, " while %s", log->action);
|
|
10
|
2477 len -= p - buf;
|
|
54
|
2478 buf = p;
|
|
10
|
2479 }
|
|
|
2480
|
|
58
|
2481 ctx = log->data;
|
|
|
2482
|
|
54
|
2483 p = ngx_snprintf(buf, len, ", client: %V", ctx->client);
|
|
58
|
2484 len -= p - buf;
|
|
54
|
2485
|
|
|
2486 r = ctx->request;
|
|
|
2487
|
|
58
|
2488 if (r) {
|
|
|
2489 return r->log_handler(r, p, len);
|
|
0
|
2490 }
|
|
10
|
2491
|
|
58
|
2492 return p;
|
|
|
2493 }
|
|
|
2494
|
|
|
2495
|
|
|
2496 static u_char *
|
|
|
2497 ngx_http_log_error_handler(ngx_http_request_t *r, u_char *buf, size_t len)
|
|
|
2498 {
|
|
|
2499 u_char *p;
|
|
54
|
2500
|
|
|
2501 if (r->server_name.data) {
|
|
|
2502 p = ngx_snprintf(buf, len, ", server: %V", &r->server_name);
|
|
52
|
2503 len -= p - buf;
|
|
54
|
2504 buf = p;
|
|
52
|
2505 }
|
|
|
2506
|
|
54
|
2507 if (r->unparsed_uri.data) {
|
|
|
2508 p = ngx_snprintf(buf, len, ", URL: \"%V\"", &r->unparsed_uri);
|
|
|
2509 len -= p - buf;
|
|
|
2510 buf = p;
|
|
|
2511
|
|
|
2512 } else {
|
|
|
2513 if (r->request_line.data == NULL && r->request_start) {
|
|
|
2514 for (p = r->request_start; p < r->header_in->last; p++) {
|
|
|
2515 if (*p == CR || *p == LF) {
|
|
|
2516 break;
|
|
|
2517 }
|
|
|
2518 }
|
|
|
2519
|
|
|
2520 r->request_line.len = p - r->request_start;
|
|
|
2521 r->request_line.data = r->request_start;
|
|
|
2522 }
|
|
|
2523
|
|
|
2524 if (r->request_line.len) {
|
|
|
2525 p = ngx_snprintf(buf, len, ", request: \"%V\"", &r->request_line);
|
|
|
2526 len -= p - buf;
|
|
|
2527 buf = p;
|
|
|
2528 }
|
|
10
|
2529 }
|
|
|
2530
|
|
54
|
2531 return ngx_http_log_error_info(r, buf, len);
|
|
0
|
2532 }
|
|
54
|
2533
|
|
|
2534
|
|
|
2535 u_char *
|
|
|
2536 ngx_http_log_error_info(ngx_http_request_t *r, u_char *buf, size_t len)
|
|
|
2537 {
|
|
|
2538 u_char *p;
|
|
|
2539
|
|
|
2540 if (r->headers_in.host) {
|
|
|
2541 p = ngx_snprintf(buf, len, ", host: \"%V\"",
|
|
|
2542 &r->headers_in.host->value);
|
|
|
2543 len -= p - buf;
|
|
|
2544 buf = p;
|
|
|
2545 }
|
|
|
2546
|
|
|
2547 if (r->headers_in.referer) {
|
|
|
2548 p = ngx_snprintf(buf, len, ", referrer: \"%V\"",
|
|
|
2549 &r->headers_in.referer->value);
|
|
|
2550 buf = p;
|
|
|
2551 }
|
|
|
2552
|
|
|
2553 return buf;
|
|
|
2554 }
|
