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