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0
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1
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2 /*
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3 * Copyright (C) Igor Sysoev
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4 */
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5
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6
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7 #include <ngx_config.h>
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8 #include <ngx_core.h>
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9 #include <ngx_event.h>
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10 #include <ngx_http.h>
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11
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12
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13 static void ngx_http_init_request(ngx_event_t *ev);
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14 static void ngx_http_process_request_line(ngx_event_t *rev);
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15 static void ngx_http_process_request_headers(ngx_event_t *rev);
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16 static ssize_t ngx_http_read_request_header(ngx_http_request_t *r);
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17 static ngx_int_t ngx_http_alloc_large_header_buffer(ngx_http_request_t *r,
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50
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18 ngx_uint_t request_line);
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58
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19
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20 static ngx_int_t ngx_http_process_header_line(ngx_http_request_t *r,
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21 ngx_table_elt_t *h, ngx_uint_t offset);
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72
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22 static ngx_int_t ngx_http_process_unique_header_line(ngx_http_request_t *r,
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23 ngx_table_elt_t *h, ngx_uint_t offset);
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58
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24 static ngx_int_t ngx_http_process_cookie(ngx_http_request_t *r,
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25 ngx_table_elt_t *h, ngx_uint_t offset);
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26
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0
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27 static ngx_int_t ngx_http_process_request_header(ngx_http_request_t *r);
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26
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28 static ngx_int_t ngx_http_find_virtual_server(ngx_http_request_t *r);
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0
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29
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58
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30 static void ngx_http_request_handler(ngx_event_t *ev);
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74
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31 static ngx_int_t ngx_http_set_write_handler(ngx_http_request_t *r);
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58
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32 static void ngx_http_writer(ngx_http_request_t *r);
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33 static ngx_int_t ngx_http_postponed_handler(ngx_http_request_t *r);
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34
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35 static void ngx_http_block_read(ngx_http_request_t *r);
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36 static void ngx_http_read_discarded_body_handler(ngx_http_request_t *r);
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0
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37 static ngx_int_t ngx_http_read_discarded_body(ngx_http_request_t *r);
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38
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39 static void ngx_http_set_keepalive(ngx_http_request_t *r);
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40 static void ngx_http_keepalive_handler(ngx_event_t *ev);
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41 static void ngx_http_set_lingering_close(ngx_http_request_t *r);
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42 static void ngx_http_lingering_close_handler(ngx_event_t *ev);
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80
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43 static void ngx_http_close_request(ngx_http_request_t *r, ngx_int_t error);
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44 static void ngx_http_close_connection(ngx_connection_t *c);
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0
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45
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32
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46 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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47 static u_char *ngx_http_log_error_handler(ngx_http_request_t *r, u_char *buf,
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48 size_t len);
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0
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49
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88
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50 #if (NGX_HTTP_SSL)
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51 static void ngx_http_ssl_handshake(ngx_event_t *rev);
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96
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52 static void ngx_http_ssl_handshake_handler(ngx_connection_t *c);
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88
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53 static void ngx_http_ssl_close_handler(ngx_event_t *ev);
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54 #endif
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55
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0
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56
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54
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57 static char *ngx_http_client_errors[] = {
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58
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59 /* NGX_HTTP_PARSE_INVALID_METHOD */
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60 "client sent invalid method",
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61
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62 /* NGX_HTTP_PARSE_INVALID_REQUEST */
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63 "client sent invalid request",
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64
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65 /* NGX_HTTP_PARSE_INVALID_09_METHOD */
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66 "client sent invalid method in HTTP/0.9 request"
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0
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67 };
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68
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69
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70 ngx_http_header_t ngx_http_headers_in[] = {
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58
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71 { ngx_string("Host"), offsetof(ngx_http_headers_in_t, host),
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72
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72 ngx_http_process_unique_header_line },
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58
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73
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74 { ngx_string("Connection"), offsetof(ngx_http_headers_in_t, connection),
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72
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75 ngx_http_process_unique_header_line },
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58
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76
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0
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77 { ngx_string("If-Modified-Since"),
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58
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78 offsetof(ngx_http_headers_in_t, if_modified_since),
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79 ngx_http_process_header_line },
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80
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81 { ngx_string("User-Agent"), offsetof(ngx_http_headers_in_t, user_agent),
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82 ngx_http_process_header_line },
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83
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84 { ngx_string("Referer"), offsetof(ngx_http_headers_in_t, referer),
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85 ngx_http_process_header_line },
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86
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0
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87 { ngx_string("Content-Length"),
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58
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88 offsetof(ngx_http_headers_in_t, content_length),
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72
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89 ngx_http_process_unique_header_line },
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58
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90
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28
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91 { ngx_string("Content-Type"),
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58
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92 offsetof(ngx_http_headers_in_t, content_type),
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93 ngx_http_process_header_line },
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94
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95 { ngx_string("Range"), offsetof(ngx_http_headers_in_t, range),
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96 ngx_http_process_header_line },
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97
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0
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98 #if (NGX_HTTP_GZIP)
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99 { ngx_string("Accept-Encoding"),
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58
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100 offsetof(ngx_http_headers_in_t, accept_encoding),
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101 ngx_http_process_header_line },
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102
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103 { ngx_string("Via"), offsetof(ngx_http_headers_in_t, via),
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104 ngx_http_process_header_line },
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0
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105 #endif
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106
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107 { ngx_string("Authorization"),
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58
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108 offsetof(ngx_http_headers_in_t, authorization),
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72
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109 ngx_http_process_unique_header_line },
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58
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110
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111 { ngx_string("Keep-Alive"), offsetof(ngx_http_headers_in_t, keep_alive),
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112 ngx_http_process_header_line },
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0
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113
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114 #if (NGX_HTTP_PROXY)
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115 { ngx_string("X-Forwarded-For"),
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58
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116 offsetof(ngx_http_headers_in_t, x_forwarded_for),
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117 ngx_http_process_header_line },
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0
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118 #endif
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28
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119
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38
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120 #if (NGX_HTTP_HEADERS)
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58
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121 { ngx_string("Accept"), offsetof(ngx_http_headers_in_t, accept),
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122 ngx_http_process_header_line },
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123
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38
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124 { ngx_string("Accept-Language"),
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58
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125 offsetof(ngx_http_headers_in_t, accept_language),
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126 ngx_http_process_header_line },
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38
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127 #endif
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128
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58
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129 { ngx_string("Cookie"), 0, ngx_http_process_cookie },
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130
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131 { ngx_null_string, 0, NULL }
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0
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132 };
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133
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134
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50
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135 void
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136 ngx_http_init_connection(ngx_connection_t *c)
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0
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137 {
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138 ngx_event_t *rev;
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139 ngx_http_log_ctx_t *ctx;
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140
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50
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141 ctx = ngx_palloc(c->pool, sizeof(ngx_http_log_ctx_t));
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142 if (ctx == NULL) {
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0
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143 ngx_http_close_connection(c);
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144 return;
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145 }
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146
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10
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147 ctx->client = &c->addr_text;
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148 ctx->request = NULL;
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32
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149
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150 c->log->connection = c->number;
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151 c->log->handler = ngx_http_log_error;
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0
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152 c->log->data = ctx;
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32
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153 c->log->action = "reading client request line";
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154
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0
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155 c->log_error = NGX_ERROR_INFO;
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156
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157 rev = c->read;
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58
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158 rev->handler = ngx_http_init_request;
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159
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160 /* STUB: epoll edge */ c->write->handler = ngx_http_empty_handler;
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0
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161
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162 if (rev->ready) {
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163 /* the deferred accept(), rtsig, aio, iocp */
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164
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165 if (ngx_accept_mutex) {
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166 if (ngx_mutex_lock(ngx_posted_events_mutex) == NGX_ERROR) {
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42
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167
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0
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168 ngx_http_close_connection(c);
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169 return;
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170 }
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171
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172 ngx_post_event(rev);
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173
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174 ngx_mutex_unlock(ngx_posted_events_mutex);
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42
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175
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176 #if (NGX_STAT_STUB)
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44
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177 ngx_atomic_inc(ngx_stat_reading);
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42
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178 #endif
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0
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179 return;
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180 }
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181
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182 #if (NGX_STAT_STUB)
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42
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183 ngx_atomic_inc(ngx_stat_reading);
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0
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184 #endif
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185
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186 ngx_http_init_request(rev);
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187 return;
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188 }
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189
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190 ngx_add_timer(rev, c->listening->post_accept_timeout);
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191
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192 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) {
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193 ngx_http_close_connection(c);
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194 return;
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195 }
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196
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197 #if (NGX_STAT_STUB)
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42
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198 ngx_atomic_inc(ngx_stat_reading);
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0
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199 #endif
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200
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201 }
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202
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203
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50
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204 static
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205 void ngx_http_init_request(ngx_event_t *rev)
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0
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206 {
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207 ngx_uint_t i;
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208 socklen_t len;
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28
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209 struct sockaddr_in sin;
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0
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210 ngx_connection_t *c;
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211 ngx_http_request_t *r;
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212 ngx_http_in_port_t *in_port;
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213 ngx_http_in_addr_t *in_addr;
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54
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214 ngx_http_log_ctx_t *ctx;
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0
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215 ngx_http_connection_t *hc;
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216 ngx_http_server_name_t *server_name;
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217 ngx_http_core_srv_conf_t *cscf;
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218 ngx_http_core_loc_conf_t *clcf;
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219 #if (NGX_HTTP_SSL)
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220 ngx_http_ssl_srv_conf_t *sscf;
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221 #endif
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222
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223 c = rev->data;
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224
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225 if (rev->timedout) {
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226 ngx_log_error(NGX_LOG_INFO, c->log, NGX_ETIMEDOUT, "client timed out");
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227
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228 #if (NGX_STAT_STUB)
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42
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229 ngx_atomic_dec(ngx_stat_reading);
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0
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230 #endif
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231
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232 ngx_http_close_connection(c);
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233 return;
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234 }
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235
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236 hc = c->data;
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237
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238 if (hc) {
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239
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240 #if (NGX_STAT_STUB)
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42
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241 ngx_atomic_inc(ngx_stat_reading);
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0
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242 #endif
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243
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244 } else {
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50
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245 hc = ngx_pcalloc(c->pool, sizeof(ngx_http_connection_t));
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246 if (hc == NULL) {
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0
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247
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248 #if (NGX_STAT_STUB)
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42
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249 ngx_atomic_dec(ngx_stat_reading);
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0
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250 #endif
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251
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252 ngx_http_close_connection(c);
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253 return;
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254 }
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255 }
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256
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257 r = hc->request;
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258
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259 if (r) {
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260 ngx_memzero(r, sizeof(ngx_http_request_t));
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261
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262 r->pipeline = hc->pipeline;
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263
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264 if (hc->nbusy) {
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265 r->header_in = hc->busy[0];
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266 }
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267
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268 } else {
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50
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269 r = ngx_pcalloc(c->pool, sizeof(ngx_http_request_t));
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270 if (r == NULL) {
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0
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271
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272 #if (NGX_STAT_STUB)
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42
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273 ngx_atomic_dec(ngx_stat_reading);
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0
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274 #endif
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275
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276 ngx_http_close_connection(c);
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277 return;
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278 }
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279
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280 hc->request = r;
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281 }
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282
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283 #if (NGX_STAT_STUB)
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42
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284 ngx_atomic_dec(ngx_stat_reading);
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0
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285 #endif
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286
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287 c->data = r;
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288 r->http_connection = hc;
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289
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290 c->sent = 0;
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291 r->signature = NGX_HTTP_MODULE;
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292
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293 /* find the server configuration for the address:port */
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294
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295 /* AF_INET only */
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296
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297 in_port = c->servers;
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298 in_addr = in_port->addrs.elts;
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299
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300 r->port = in_port->port;
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301 r->port_text = &in_port->port_text;
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302
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303 i = 0;
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304
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305 if (in_port->addrs.nelts > 1) {
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306
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307 /*
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308 * There are several addresses on this port and one of them
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309 * is the "*:port" wildcard so getsockname() is needed to determine
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310 * the server address.
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311 *
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312 * AcceptEx() already gave this address.
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313 */
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314
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10
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315 #if (NGX_WIN32)
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0
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316 if (c->local_sockaddr) {
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317 r->in_addr =
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318 ((struct sockaddr_in *) c->local_sockaddr)->sin_addr.s_addr;
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319
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28
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320 } else
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0
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321 #endif
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28
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322 {
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0
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323 len = sizeof(struct sockaddr_in);
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28
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324 if (getsockname(c->fd, (struct sockaddr *) &sin, &len) == -1) {
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0
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325 ngx_connection_error(c, ngx_socket_errno,
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326 "getsockname() failed");
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327 ngx_http_close_connection(c);
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328 return;
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329 }
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330
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28
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331 r->in_addr = sin.sin_addr.s_addr;
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0
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332 }
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333
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334 /* the last in_port->addrs address is "*" */
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335
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336 for ( /* void */ ; i < in_port->addrs.nelts - 1; i++) {
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337 if (in_addr[i].addr == r->in_addr) {
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338 break;
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339 }
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340 }
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341
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342 } else {
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343 r->in_addr = in_addr[0].addr;
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344 }
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345
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26
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346 r->virtual_names = &in_addr[i];
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0
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347
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348 /* the default server configuration for the address:port */
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349 cscf = in_addr[i].core_srv_conf;
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350
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351 r->main_conf = cscf->ctx->main_conf;
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352 r->srv_conf = cscf->ctx->srv_conf;
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353 r->loc_conf = cscf->ctx->loc_conf;
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354
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58
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355 rev->handler = ngx_http_process_request_line;
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0
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356
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357 #if (NGX_HTTP_SSL)
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358
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359 sscf = ngx_http_get_module_srv_conf(r, ngx_http_ssl_module);
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360 if (sscf->enable) {
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361
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362 if (c->ssl == NULL) {
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96
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363 if (ngx_ssl_create_connection(&sscf->ssl, c, NGX_SSL_BUFFER)
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56
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364 == NGX_ERROR)
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0
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365 {
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366 ngx_http_close_connection(c);
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367 return;
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368 }
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369
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58
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370 rev->handler = ngx_http_ssl_handshake;
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0
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371 }
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372
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62
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373 r->main_filter_need_in_memory = 1;
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0
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374 }
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375
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376 #endif
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377
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378 server_name = cscf->server_names.elts;
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6
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379 r->server_name = server_name->name;
|
|
0
|
380
|
|
|
381 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
382 c->log->file = clcf->err_log->file;
|
|
|
383 if (!(c->log->log_level & NGX_LOG_DEBUG_CONNECTION)) {
|
|
|
384 c->log->log_level = clcf->err_log->log_level;
|
|
|
385 }
|
|
|
386
|
|
|
387 if (c->buffer == NULL) {
|
|
|
388 c->buffer = ngx_create_temp_buf(c->pool,
|
|
|
389 cscf->client_header_buffer_size);
|
|
|
390 if (c->buffer == NULL) {
|
|
|
391 ngx_http_close_connection(c);
|
|
|
392 return;
|
|
|
393 }
|
|
|
394 }
|
|
|
395
|
|
|
396 if (r->header_in == NULL) {
|
|
|
397 r->header_in = c->buffer;
|
|
|
398 }
|
|
|
399
|
|
50
|
400 r->pool = ngx_create_pool(cscf->request_pool_size, c->log);
|
|
|
401 if (r->pool == NULL) {
|
|
0
|
402 ngx_http_close_connection(c);
|
|
|
403 return;
|
|
|
404 }
|
|
|
405
|
|
|
406
|
|
|
407 if (ngx_list_init(&r->headers_out.headers, r->pool, 20,
|
|
58
|
408 sizeof(ngx_table_elt_t)) == NGX_ERROR)
|
|
0
|
409 {
|
|
|
410 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
411 ngx_http_close_connection(c);
|
|
|
412 return;
|
|
|
413 }
|
|
|
414
|
|
|
415
|
|
|
416 r->ctx = ngx_pcalloc(r->pool, sizeof(void *) * ngx_http_max_module);
|
|
|
417 if (r->ctx == NULL) {
|
|
|
418 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
419 ngx_http_close_connection(c);
|
|
|
420 return;
|
|
|
421 }
|
|
|
422
|
|
|
423 c->single_connection = 1;
|
|
|
424 r->connection = c;
|
|
|
425
|
|
46
|
426 r->start_time = ngx_time();
|
|
|
427
|
|
0
|
428 r->headers_in.content_length_n = -1;
|
|
|
429 r->headers_in.keep_alive_n = -1;
|
|
|
430 r->headers_out.content_length_n = -1;
|
|
|
431 r->headers_out.last_modified_time = -1;
|
|
|
432
|
|
|
433 r->http_state = NGX_HTTP_READING_REQUEST_STATE;
|
|
|
434
|
|
54
|
435 ctx = c->log->data;
|
|
|
436 ctx->request = r;
|
|
58
|
437 r->log_handler = ngx_http_log_error_handler;
|
|
54
|
438
|
|
0
|
439 #if (NGX_STAT_STUB)
|
|
42
|
440 ngx_atomic_inc(ngx_stat_reading);
|
|
26
|
441 r->stat_reading = 1;
|
|
42
|
442 ngx_atomic_inc(ngx_stat_requests);
|
|
0
|
443 #endif
|
|
|
444
|
|
58
|
445 rev->handler(rev);
|
|
0
|
446 }
|
|
|
447
|
|
|
448
|
|
|
449 #if (NGX_HTTP_SSL)
|
|
|
450
|
|
50
|
451 static void
|
|
|
452 ngx_http_ssl_handshake(ngx_event_t *rev)
|
|
0
|
453 {
|
|
10
|
454 u_char buf[1];
|
|
|
455 ssize_t n;
|
|
0
|
456 ngx_int_t rc;
|
|
|
457 ngx_connection_t *c;
|
|
|
458 ngx_http_request_t *r;
|
|
|
459
|
|
|
460 c = rev->data;
|
|
|
461 r = c->data;
|
|
|
462
|
|
|
463 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, rev->log, 0,
|
|
|
464 "http check ssl handshake");
|
|
|
465
|
|
|
466 if (rev->timedout) {
|
|
54
|
467 ngx_log_error(NGX_LOG_INFO, c->log, NGX_ETIMEDOUT, "client timed out");
|
|
|
468 c->timedout = 1;
|
|
|
469 ngx_http_close_request(r, NGX_HTTP_REQUEST_TIME_OUT);
|
|
|
470 ngx_http_close_connection(c);
|
|
0
|
471 return;
|
|
|
472 }
|
|
|
473
|
|
|
474 n = recv(c->fd, buf, 1, MSG_PEEK);
|
|
|
475
|
|
|
476 if (n == -1 && ngx_socket_errno == NGX_EAGAIN) {
|
|
|
477 return;
|
|
|
478 }
|
|
|
479
|
|
|
480 if (n == 1) {
|
|
|
481 if (buf[0] == 0x80 /* SSLv2 */ || buf[0] == 0x16 /* SSLv3/TLSv1 */) {
|
|
|
482 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, rev->log, 0,
|
|
10
|
483 "https ssl handshake: 0x%02Xd", buf[0]);
|
|
0
|
484
|
|
|
485 rc = ngx_ssl_handshake(c);
|
|
|
486
|
|
96
|
487 if (rc == NGX_AGAIN) {
|
|
|
488 c->ssl->handler = ngx_http_ssl_handshake_handler;
|
|
0
|
489 return;
|
|
|
490 }
|
|
|
491
|
|
96
|
492 ngx_http_ssl_handshake_handler(c);
|
|
|
493
|
|
|
494 return;
|
|
0
|
495
|
|
|
496 } else {
|
|
|
497 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, rev->log, 0,
|
|
|
498 "plain http");
|
|
|
499
|
|
|
500 r->plain_http = 1;
|
|
|
501 }
|
|
|
502 }
|
|
|
503
|
|
58
|
504 rev->handler = ngx_http_process_request_line;
|
|
0
|
505 ngx_http_process_request_line(rev);
|
|
|
506 }
|
|
|
507
|
|
96
|
508
|
|
|
509 static void
|
|
|
510 ngx_http_ssl_handshake_handler(ngx_connection_t *c)
|
|
|
511 {
|
|
|
512 ngx_http_request_t *r;
|
|
|
513
|
|
|
514 if (c->ssl->handshaked) {
|
|
|
515
|
|
|
516 /*
|
|
|
517 * The majority of browsers do not send the "close notify" alert.
|
|
|
518 * Among them are MSIE, old Mozilla, Netscape 4, Konqueror,
|
|
|
519 * and Links. And what is more, MSIE ignores the server's alert.
|
|
|
520 *
|
|
|
521 * Opera and recent Mozilla send the alert.
|
|
|
522 */
|
|
|
523
|
|
|
524 c->ssl->no_wait_shutdown = 1;
|
|
|
525
|
|
|
526 c->read->handler = ngx_http_process_request_line;
|
|
|
527 /* STUB: epoll edge */ c->write->handler = ngx_http_empty_handler;
|
|
|
528
|
|
|
529 ngx_http_process_request_line(c->read);
|
|
|
530
|
|
|
531 return;
|
|
|
532 }
|
|
|
533
|
|
|
534 r = c->data;
|
|
|
535
|
|
|
536 ngx_http_close_request(r, NGX_HTTP_BAD_REQUEST);
|
|
|
537 ngx_http_close_connection(r->connection);
|
|
|
538
|
|
|
539 return;
|
|
|
540 }
|
|
|
541
|
|
|
542
|
|
0
|
543 #endif
|
|
|
544
|
|
|
545
|
|
50
|
546 static void
|
|
|
547 ngx_http_process_request_line(ngx_event_t *rev)
|
|
0
|
548 {
|
|
|
549 ssize_t n;
|
|
|
550 ngx_int_t rc, rv;
|
|
|
551 ngx_connection_t *c;
|
|
|
552 ngx_http_request_t *r;
|
|
|
553 ngx_http_log_ctx_t *ctx;
|
|
|
554
|
|
|
555 c = rev->data;
|
|
|
556 r = c->data;
|
|
|
557
|
|
|
558 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, rev->log, 0,
|
|
|
559 "http process request line");
|
|
|
560
|
|
|
561 if (rev->timedout) {
|
|
54
|
562 ngx_log_error(NGX_LOG_INFO, c->log, NGX_ETIMEDOUT, "client timed out");
|
|
|
563 c->timedout = 1;
|
|
|
564 ngx_http_close_request(r, NGX_HTTP_REQUEST_TIME_OUT);
|
|
|
565 ngx_http_close_connection(c);
|
|
0
|
566 return;
|
|
|
567 }
|
|
|
568
|
|
|
569 rc = NGX_AGAIN;
|
|
|
570
|
|
|
571 for ( ;; ) {
|
|
|
572
|
|
|
573 if (rc == NGX_AGAIN) {
|
|
|
574 n = ngx_http_read_request_header(r);
|
|
|
575
|
|
|
576 if (n == NGX_AGAIN || n == NGX_ERROR) {
|
|
|
577 return;
|
|
|
578 }
|
|
|
579 }
|
|
|
580
|
|
|
581 rc = ngx_http_parse_request_line(r, r->header_in);
|
|
|
582
|
|
|
583 if (rc == NGX_OK) {
|
|
|
584
|
|
|
585 /* the request line has been parsed successfully */
|
|
|
586
|
|
10
|
587 r->request_line.len = r->request_end - r->request_start;
|
|
|
588 r->request_line.data = r->request_start;
|
|
|
589
|
|
0
|
590
|
|
|
591 if (r->args_start) {
|
|
|
592 r->uri.len = r->args_start - 1 - r->uri_start;
|
|
|
593 } else {
|
|
|
594 r->uri.len = r->uri_end - r->uri_start;
|
|
|
595 }
|
|
|
596
|
|
18
|
597
|
|
2
|
598 if (r->complex_uri || r->quoted_uri) {
|
|
10
|
599
|
|
50
|
600 r->uri.data = ngx_palloc(r->pool, r->uri.len + 1);
|
|
|
601 if (r->uri.data == NULL) {
|
|
10
|
602 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
603 ngx_http_close_connection(c);
|
|
|
604 return;
|
|
|
605 }
|
|
|
606
|
|
0
|
607 rc = ngx_http_parse_complex_uri(r);
|
|
|
608
|
|
54
|
609 if (rc == NGX_HTTP_PARSE_INVALID_REQUEST) {
|
|
|
610 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
|
611 "client sent invalid request");
|
|
|
612 ngx_http_finalize_request(r, NGX_HTTP_BAD_REQUEST);
|
|
0
|
613 return;
|
|
|
614 }
|
|
|
615
|
|
|
616 } else {
|
|
10
|
617 r->uri.data = r->uri_start;
|
|
0
|
618 }
|
|
|
619
|
|
18
|
620
|
|
10
|
621 r->unparsed_uri.len = r->uri_end - r->uri_start;
|
|
|
622 r->unparsed_uri.data = r->uri_start;
|
|
|
623
|
|
0
|
624
|
|
58
|
625 r->method_name.len = r->method_end - r->request_start + 1;
|
|
|
626 r->method_name.data = r->request_line.data;
|
|
0
|
627
|
|
10
|
628
|
|
28
|
629 if (r->http_protocol.data) {
|
|
|
630 r->http_protocol.len = r->request_end - r->http_protocol.data;
|
|
|
631 }
|
|
|
632
|
|
|
633
|
|
0
|
634 if (r->uri_ext) {
|
|
|
635 if (r->args_start) {
|
|
|
636 r->exten.len = r->args_start - 1 - r->uri_ext;
|
|
|
637 } else {
|
|
|
638 r->exten.len = r->uri_end - r->uri_ext;
|
|
|
639 }
|
|
|
640
|
|
10
|
641 r->exten.data = r->uri_ext;
|
|
0
|
642 }
|
|
|
643
|
|
10
|
644
|
|
0
|
645 if (r->args_start && r->uri_end > r->args_start) {
|
|
|
646 r->args.len = r->uri_end - r->args_start;
|
|
10
|
647 r->args.data = r->args_start;
|
|
0
|
648 }
|
|
|
649
|
|
10
|
650
|
|
|
651 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
|
652 "http request line: \"%V\"", &r->request_line);
|
|
|
653
|
|
0
|
654 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
10
|
655 "http uri: \"%V\"", &r->uri);
|
|
0
|
656
|
|
|
657 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
10
|
658 "http args: \"%V\"", &r->args);
|
|
0
|
659
|
|
|
660 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
10
|
661 "http exten: \"%V\"", &r->exten);
|
|
|
662
|
|
0
|
663 if (r->http_version < NGX_HTTP_VERSION_10) {
|
|
86
|
664
|
|
|
665 if (rev->timer_set) {
|
|
|
666 ngx_del_timer(rev);
|
|
|
667 }
|
|
|
668
|
|
|
669 #if (NGX_STAT_STUB)
|
|
|
670 ngx_atomic_dec(ngx_stat_reading);
|
|
|
671 r->stat_reading = 0;
|
|
|
672 ngx_atomic_inc(ngx_stat_writing);
|
|
|
673 r->stat_writing = 1;
|
|
|
674 #endif
|
|
|
675
|
|
|
676 rev->handler = ngx_http_request_handler;
|
|
|
677 c->write->handler = ngx_http_request_handler;
|
|
58
|
678 r->read_event_handler = ngx_http_block_read;
|
|
86
|
679
|
|
0
|
680 ngx_http_handler(r);
|
|
86
|
681
|
|
0
|
682 return;
|
|
|
683 }
|
|
|
684
|
|
|
685
|
|
|
686 if (ngx_list_init(&r->headers_in.headers, r->pool, 20,
|
|
|
687 sizeof(ngx_table_elt_t)) == NGX_ERROR)
|
|
|
688 {
|
|
|
689 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
690 ngx_http_close_connection(c);
|
|
|
691 return;
|
|
|
692 }
|
|
|
693
|
|
|
694
|
|
48
|
695 if (ngx_array_init(&r->headers_in.cookies, r->pool, 2,
|
|
0
|
696 sizeof(ngx_table_elt_t *)) == NGX_ERROR)
|
|
|
697 {
|
|
|
698 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
699 ngx_http_close_connection(c);
|
|
|
700 return;
|
|
|
701 }
|
|
|
702
|
|
32
|
703 c->log->action = "reading client request headers";
|
|
0
|
704
|
|
58
|
705 rev->handler = ngx_http_process_request_headers;
|
|
0
|
706 ngx_http_process_request_headers(rev);
|
|
|
707
|
|
|
708 return;
|
|
54
|
709 }
|
|
|
710
|
|
|
711 if (rc != NGX_AGAIN) {
|
|
0
|
712
|
|
|
713 /* there was error while a request line parsing */
|
|
|
714
|
|
54
|
715 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
|
716 ngx_http_client_errors[rc - NGX_HTTP_CLIENT_ERROR]);
|
|
|
717 ngx_http_finalize_request(r, NGX_HTTP_BAD_REQUEST);
|
|
0
|
718 return;
|
|
|
719 }
|
|
|
720
|
|
|
721 /* NGX_AGAIN: a request line parsing is still incomplete */
|
|
|
722
|
|
|
723 if (r->header_in->pos == r->header_in->end) {
|
|
|
724
|
|
|
725 rv = ngx_http_alloc_large_header_buffer(r, 1);
|
|
|
726
|
|
|
727 if (rv == NGX_ERROR) {
|
|
|
728 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
729 ngx_http_close_connection(c);
|
|
|
730 return;
|
|
|
731 }
|
|
|
732
|
|
|
733 if (rv == NGX_DECLINED) {
|
|
54
|
734 ctx = c->log->data;
|
|
|
735 ctx->request = r;
|
|
|
736
|
|
|
737 r->request_line.len = r->header_in->end - r->request_start;
|
|
|
738 r->request_line.data = r->request_start;
|
|
|
739
|
|
|
740 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
|
741 "client sent too long URI");
|
|
|
742 ngx_http_finalize_request(r, NGX_HTTP_REQUEST_URI_TOO_LARGE);
|
|
0
|
743 return;
|
|
|
744 }
|
|
|
745 }
|
|
|
746 }
|
|
|
747 }
|
|
|
748
|
|
|
749
|
|
50
|
750 static void
|
|
|
751 ngx_http_process_request_headers(ngx_event_t *rev)
|
|
0
|
752 {
|
|
56
|
753 ssize_t n;
|
|
|
754 ngx_int_t rc, rv;
|
|
|
755 ngx_uint_t key;
|
|
|
756 ngx_str_t header;
|
|
58
|
757 ngx_table_elt_t *h;
|
|
56
|
758 ngx_connection_t *c;
|
|
|
759 ngx_http_header_t *hh;
|
|
|
760 ngx_http_request_t *r;
|
|
60
|
761 ngx_http_core_srv_conf_t *cscf;
|
|
56
|
762 ngx_http_core_main_conf_t *cmcf;
|
|
0
|
763
|
|
|
764 c = rev->data;
|
|
|
765 r = c->data;
|
|
|
766
|
|
|
767 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, rev->log, 0,
|
|
|
768 "http process request header line");
|
|
|
769
|
|
|
770 if (rev->timedout) {
|
|
54
|
771 ngx_log_error(NGX_LOG_INFO, c->log, NGX_ETIMEDOUT, "client timed out");
|
|
|
772 c->timedout = 1;
|
|
|
773 ngx_http_close_request(r, NGX_HTTP_REQUEST_TIME_OUT);
|
|
|
774 ngx_http_close_connection(c);
|
|
0
|
775 return;
|
|
|
776 }
|
|
|
777
|
|
56
|
778 cmcf = ngx_http_get_module_main_conf(r, ngx_http_core_module);
|
|
60
|
779 cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
|
|
56
|
780 hh = (ngx_http_header_t *) cmcf->headers_in_hash.buckets;
|
|
|
781
|
|
0
|
782 rc = NGX_AGAIN;
|
|
|
783
|
|
|
784 for ( ;; ) {
|
|
|
785
|
|
|
786 if (rc == NGX_AGAIN) {
|
|
|
787
|
|
|
788 if (r->header_in->pos == r->header_in->end) {
|
|
|
789
|
|
|
790 rv = ngx_http_alloc_large_header_buffer(r, 0);
|
|
|
791
|
|
|
792 if (rv == NGX_ERROR) {
|
|
|
793 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
794 ngx_http_close_connection(c);
|
|
|
795 return;
|
|
|
796 }
|
|
|
797
|
|
|
798 if (rv == NGX_DECLINED) {
|
|
54
|
799 header.len = r->header_in->end - r->header_name_start;
|
|
|
800 header.data = r->header_name_start;
|
|
80
|
801
|
|
|
802 if (header.len > NGX_MAX_ERROR_STR - 300) {
|
|
|
803 header.len = NGX_MAX_ERROR_STR - 300;
|
|
|
804 header.data[header.len++] = '.';
|
|
|
805 header.data[header.len++] = '.';
|
|
|
806 header.data[header.len++] = '.';
|
|
|
807 }
|
|
|
808
|
|
54
|
809 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
|
810 "client sent too long header line: \"%V\"",
|
|
|
811 &header);
|
|
|
812 ngx_http_close_request(r, NGX_HTTP_BAD_REQUEST);
|
|
|
813 ngx_http_close_connection(c);
|
|
0
|
814 return;
|
|
|
815 }
|
|
|
816 }
|
|
|
817
|
|
|
818 n = ngx_http_read_request_header(r);
|
|
|
819
|
|
|
820 if (n == NGX_AGAIN || n == NGX_ERROR) {
|
|
|
821 return;
|
|
|
822 }
|
|
|
823 }
|
|
|
824
|
|
|
825 rc = ngx_http_parse_header_line(r, r->header_in);
|
|
|
826
|
|
|
827 if (rc == NGX_OK) {
|
|
|
828
|
|
60
|
829 if (r->invalid_header && cscf->ignore_invalid_headers) {
|
|
52
|
830
|
|
|
831 /* there was error while a header line parsing */
|
|
|
832
|
|
|
833 header.len = r->header_end - r->header_name_start;
|
|
|
834 header.data = r->header_name_start;
|
|
|
835
|
|
54
|
836 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
|
837 "client sent invalid header line: \"%V\"",
|
|
52
|
838 &header);
|
|
|
839 continue;
|
|
|
840 }
|
|
|
841
|
|
0
|
842 /* a header line has been parsed successfully */
|
|
|
843
|
|
50
|
844 h = ngx_list_push(&r->headers_in.headers);
|
|
|
845 if (h == NULL) {
|
|
0
|
846 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
847 ngx_http_close_connection(c);
|
|
|
848 return;
|
|
|
849 }
|
|
|
850
|
|
56
|
851 h->hash = r->header_hash;
|
|
|
852
|
|
0
|
853 h->key.len = r->header_name_end - r->header_name_start;
|
|
|
854 h->key.data = r->header_name_start;
|
|
|
855 h->key.data[h->key.len] = '\0';
|
|
|
856
|
|
|
857 h->value.len = r->header_end - r->header_start;
|
|
|
858 h->value.data = r->header_start;
|
|
|
859 h->value.data[h->value.len] = '\0';
|
|
|
860
|
|
58
|
861 key = h->hash % cmcf->headers_in_hash.hash_size;
|
|
|
862
|
|
|
863 if (hh[key].name.len == h->key.len
|
|
|
864 && ngx_strcasecmp(hh[key].name.data, h->key.data) == 0)
|
|
0
|
865 {
|
|
58
|
866 if (hh[key].handler(r, h, hh[key].offset) != NGX_OK) {
|
|
0
|
867 return;
|
|
|
868 }
|
|
|
869 }
|
|
|
870
|
|
|
871 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
10
|
872 "http header: \"%V: %V\"",
|
|
|
873 &h->key, &h->value);
|
|
0
|
874
|
|
|
875 continue;
|
|
54
|
876 }
|
|
|
877
|
|
|
878 if (rc == NGX_HTTP_PARSE_HEADER_DONE) {
|
|
0
|
879
|
|
|
880 /* a whole header has been parsed successfully */
|
|
|
881
|
|
|
882 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
883 "http header done");
|
|
|
884
|
|
24
|
885 r->request_length += r->header_in->pos - r->header_in->start;
|
|
|
886
|
|
0
|
887 r->http_state = NGX_HTTP_PROCESS_REQUEST_STATE;
|
|
|
888
|
|
|
889 rc = ngx_http_process_request_header(r);
|
|
|
890
|
|
|
891 if (rc != NGX_OK) {
|
|
|
892 return;
|
|
|
893 }
|
|
|
894
|
|
|
895 if (rev->timer_set) {
|
|
|
896 ngx_del_timer(rev);
|
|
|
897 }
|
|
|
898
|
|
|
899 #if (NGX_STAT_STUB)
|
|
42
|
900 ngx_atomic_dec(ngx_stat_reading);
|
|
0
|
901 r->stat_reading = 0;
|
|
42
|
902 ngx_atomic_inc(ngx_stat_writing);
|
|
0
|
903 r->stat_writing = 1;
|
|
|
904 #endif
|
|
|
905
|
|
58
|
906 rev->handler = ngx_http_request_handler;
|
|
|
907 c->write->handler = ngx_http_request_handler;
|
|
|
908 r->read_event_handler = ngx_http_block_read;
|
|
|
909
|
|
0
|
910 ngx_http_handler(r);
|
|
86
|
911
|
|
0
|
912 return;
|
|
54
|
913 }
|
|
|
914
|
|
|
915 if (rc == NGX_AGAIN) {
|
|
|
916
|
|
|
917 /* a header line parsing is still not complete */
|
|
|
918
|
|
|
919 continue;
|
|
0
|
920 }
|
|
|
921
|
|
54
|
922 /* rc == NGX_HTTP_PARSE_INVALID_HEADER: "\r" is not followed by "\n" */
|
|
|
923
|
|
|
924 header.len = r->header_end - r->header_name_start;
|
|
|
925 header.data = r->header_name_start;
|
|
|
926 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
|
927 "client sent invalid header line: \"%V\\r...\"",
|
|
|
928 &header);
|
|
|
929 ngx_http_close_request(r, NGX_HTTP_BAD_REQUEST);
|
|
|
930 ngx_http_close_connection(c);
|
|
|
931 return;
|
|
0
|
932 }
|
|
|
933 }
|
|
|
934
|
|
|
935
|
|
50
|
936 static ssize_t
|
|
|
937 ngx_http_read_request_header(ngx_http_request_t *r)
|
|
0
|
938 {
|
|
|
939 ssize_t n;
|
|
|
940 ngx_event_t *rev;
|
|
|
941 ngx_http_core_srv_conf_t *cscf;
|
|
|
942
|
|
|
943 rev = r->connection->read;
|
|
|
944
|
|
|
945 n = r->header_in->last - r->header_in->pos;
|
|
|
946
|
|
|
947 if (n > 0) {
|
|
|
948 return n;
|
|
|
949 }
|
|
|
950
|
|
72
|
951 if (rev->ready) {
|
|
|
952 n = r->connection->recv(r->connection, r->header_in->last,
|
|
|
953 r->header_in->end - r->header_in->last);
|
|
|
954 } else {
|
|
|
955 n = NGX_AGAIN;
|
|
0
|
956 }
|
|
|
957
|
|
|
958 if (n == NGX_AGAIN) {
|
|
|
959 if (!r->header_timeout_set) {
|
|
|
960 cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
|
|
|
961 ngx_add_timer(rev, cscf->client_header_timeout);
|
|
|
962 r->header_timeout_set = 1;
|
|
|
963 }
|
|
|
964
|
|
|
965 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) {
|
|
|
966 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
967 ngx_http_close_connection(r->connection);
|
|
|
968 return NGX_ERROR;
|
|
|
969 }
|
|
|
970
|
|
|
971 return NGX_AGAIN;
|
|
|
972 }
|
|
|
973
|
|
|
974 if (n == 0) {
|
|
|
975 ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
|
|
|
976 "client closed prematurely connection");
|
|
|
977 }
|
|
|
978
|
|
|
979 if (n == 0 || n == NGX_ERROR) {
|
|
|
980 ngx_http_close_request(r, NGX_HTTP_BAD_REQUEST);
|
|
|
981 ngx_http_close_connection(r->connection);
|
|
|
982 return NGX_ERROR;
|
|
|
983 }
|
|
|
984
|
|
|
985 r->header_in->last += n;
|
|
|
986
|
|
|
987 return n;
|
|
|
988 }
|
|
|
989
|
|
|
990
|
|
50
|
991 static ngx_int_t
|
|
|
992 ngx_http_alloc_large_header_buffer(ngx_http_request_t *r,
|
|
|
993 ngx_uint_t request_line)
|
|
0
|
994 {
|
|
|
995 u_char *old, *new;
|
|
|
996 ngx_buf_t *b;
|
|
|
997 ngx_http_connection_t *hc;
|
|
|
998 ngx_http_core_srv_conf_t *cscf;
|
|
|
999
|
|
|
1000 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1001 "http alloc large header buffer");
|
|
|
1002
|
|
|
1003 if (request_line && r->state == 0) {
|
|
|
1004
|
|
|
1005 /* the client fills up the buffer with "\r\n" */
|
|
|
1006
|
|
24
|
1007 r->request_length += r->header_in->end - r->header_in->start;
|
|
|
1008
|
|
0
|
1009 r->header_in->pos = r->header_in->start;
|
|
|
1010 r->header_in->last = r->header_in->start;
|
|
|
1011
|
|
|
1012 return NGX_OK;
|
|
|
1013 }
|
|
|
1014
|
|
|
1015 old = request_line ? r->request_start : r->header_name_start;
|
|
|
1016
|
|
|
1017 cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
|
|
|
1018
|
|
|
1019 if (r->state != 0
|
|
|
1020 && (size_t) (r->header_in->pos - old)
|
|
|
1021 >= cscf->large_client_header_buffers.size)
|
|
|
1022 {
|
|
|
1023 return NGX_DECLINED;
|
|
|
1024 }
|
|
|
1025
|
|
|
1026 hc = r->http_connection;
|
|
|
1027
|
|
|
1028 if (hc->nfree) {
|
|
|
1029 b = hc->free[--hc->nfree];
|
|
|
1030
|
|
|
1031 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
10
|
1032 "http large header free: %p %uz",
|
|
0
|
1033 b->pos, b->end - b->last);
|
|
|
1034
|
|
|
1035 } else if (hc->nbusy < cscf->large_client_header_buffers.num) {
|
|
|
1036
|
|
|
1037 if (hc->busy == NULL) {
|
|
|
1038 hc->busy = ngx_palloc(r->connection->pool,
|
|
|
1039 cscf->large_client_header_buffers.num * sizeof(ngx_buf_t *));
|
|
|
1040 if (hc->busy == NULL) {
|
|
|
1041 return NGX_ERROR;
|
|
|
1042 }
|
|
|
1043 }
|
|
|
1044
|
|
|
1045 b = ngx_create_temp_buf(r->connection->pool,
|
|
|
1046 cscf->large_client_header_buffers.size);
|
|
|
1047 if (b == NULL) {
|
|
|
1048 return NGX_ERROR;
|
|
|
1049 }
|
|
|
1050
|
|
|
1051 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
10
|
1052 "http large header alloc: %p %uz",
|
|
0
|
1053 b->pos, b->end - b->last);
|
|
|
1054
|
|
|
1055 } else {
|
|
|
1056 return NGX_DECLINED;
|
|
|
1057 }
|
|
|
1058
|
|
|
1059 hc->busy[hc->nbusy++] = b;
|
|
|
1060
|
|
|
1061 if (r->state == 0) {
|
|
|
1062 /*
|
|
|
1063 * r->state == 0 means that a header line was parsed successfully
|
|
|
1064 * and we do not need to copy incomplete header line and
|
|
|
1065 * to relocate the parser header pointers
|
|
|
1066 */
|
|
|
1067
|
|
24
|
1068 r->request_length += r->header_in->end - r->header_in->start;
|
|
|
1069
|
|
0
|
1070 r->header_in = b;
|
|
|
1071
|
|
|
1072 return NGX_OK;
|
|
|
1073 }
|
|
|
1074
|
|
|
1075 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1076 "http large header copy: %d", r->header_in->pos - old);
|
|
|
1077
|
|
24
|
1078 r->request_length += old - r->header_in->start;
|
|
|
1079
|
|
0
|
1080 new = b->start;
|
|
|
1081
|
|
|
1082 ngx_memcpy(new, old, r->header_in->pos - old);
|
|
|
1083
|
|
|
1084 b->pos = new + (r->header_in->pos - old);
|
|
|
1085 b->last = new + (r->header_in->pos - old);
|
|
|
1086
|
|
|
1087 if (request_line) {
|
|
|
1088 r->request_start = new;
|
|
|
1089
|
|
|
1090 if (r->request_end) {
|
|
|
1091 r->request_end = new + (r->request_end - old);
|
|
|
1092 }
|
|
|
1093
|
|
|
1094 r->method_end = new + (r->method_end - old);
|
|
|
1095
|
|
|
1096 r->uri_start = new + (r->uri_start - old);
|
|
|
1097 r->uri_end = new + (r->uri_end - old);
|
|
|
1098
|
|
|
1099 if (r->schema_start) {
|
|
|
1100 r->schema_start = new + (r->schema_start - old);
|
|
|
1101 r->schema_end = new + (r->schema_end - old);
|
|
|
1102 }
|
|
|
1103
|
|
|
1104 if (r->host_start) {
|
|
|
1105 r->host_start = new + (r->host_start - old);
|
|
|
1106 r->host_end = new + (r->host_end - old);
|
|
|
1107 }
|
|
|
1108
|
|
|
1109 if (r->port_start) {
|
|
|
1110 r->port_start = new + (r->port_start - old);
|
|
|
1111 r->port_end = new + (r->port_end - old);
|
|
|
1112 }
|
|
|
1113
|
|
|
1114 if (r->uri_ext) {
|
|
|
1115 r->uri_ext = new + (r->uri_ext - old);
|
|
|
1116 }
|
|
|
1117
|
|
|
1118 if (r->args_start) {
|
|
|
1119 r->args_start = new + (r->args_start - old);
|
|
|
1120 }
|
|
|
1121
|
|
|
1122 } else {
|
|
|
1123 r->header_name_start = new;
|
|
|
1124 r->header_name_end = new + (r->header_name_end - old);
|
|
|
1125 r->header_start = new + (r->header_start - old);
|
|
|
1126 r->header_end = new + (r->header_end - old);
|
|
|
1127 }
|
|
|
1128
|
|
|
1129 r->header_in = b;
|
|
|
1130
|
|
|
1131 return NGX_OK;
|
|
|
1132 }
|
|
|
1133
|
|
|
1134
|
|
50
|
1135 static ngx_int_t
|
|
58
|
1136 ngx_http_process_header_line(ngx_http_request_t *r, ngx_table_elt_t *h,
|
|
|
1137 ngx_uint_t offset)
|
|
|
1138 {
|
|
|
1139 ngx_table_elt_t **ph;
|
|
|
1140
|
|
|
1141 ph = (ngx_table_elt_t **) ((char *) &r->headers_in + offset);
|
|
|
1142
|
|
|
1143 if (*ph == NULL) {
|
|
|
1144 *ph = h;
|
|
|
1145 }
|
|
|
1146
|
|
|
1147 return NGX_OK;
|
|
|
1148 }
|
|
|
1149
|
|
|
1150
|
|
|
1151 static ngx_int_t
|
|
72
|
1152 ngx_http_process_unique_header_line(ngx_http_request_t *r, ngx_table_elt_t *h,
|
|
|
1153 ngx_uint_t offset)
|
|
|
1154 {
|
|
|
1155 ngx_table_elt_t **ph;
|
|
|
1156
|
|
|
1157 ph = (ngx_table_elt_t **) ((char *) &r->headers_in + offset);
|
|
|
1158
|
|
|
1159 if (*ph == NULL) {
|
|
|
1160 *ph = h;
|
|
|
1161 return NGX_OK;
|
|
|
1162 }
|
|
|
1163
|
|
|
1164 ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
|
|
|
1165 "client sent duplicate header line: \"%V: %V\"",
|
|
|
1166 &h->key, &h->value);
|
|
|
1167
|
|
|
1168 ngx_http_finalize_request(r, NGX_HTTP_BAD_REQUEST);
|
|
|
1169
|
|
|
1170 return NGX_ERROR;
|
|
|
1171 }
|
|
|
1172
|
|
|
1173
|
|
|
1174 static ngx_int_t
|
|
58
|
1175 ngx_http_process_cookie(ngx_http_request_t *r, ngx_table_elt_t *h,
|
|
|
1176 ngx_uint_t offset)
|
|
|
1177 {
|
|
|
1178 ngx_table_elt_t **cookie;
|
|
|
1179
|
|
|
1180 cookie = ngx_array_push(&r->headers_in.cookies);
|
|
72
|
1181 if (cookie) {
|
|
|
1182 *cookie = h;
|
|
|
1183 return NGX_OK;
|
|
58
|
1184 }
|
|
|
1185
|
|
72
|
1186 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
1187 ngx_http_close_connection(r->connection);
|
|
|
1188
|
|
|
1189 return NGX_ERROR;
|
|
58
|
1190 }
|
|
|
1191
|
|
|
1192
|
|
|
1193 static ngx_int_t
|
|
50
|
1194 ngx_http_process_request_header(ngx_http_request_t *r)
|
|
0
|
1195 {
|
|
54
|
1196 size_t len;
|
|
|
1197 u_char *ua, *user_agent, ch;
|
|
|
1198 ngx_http_core_srv_conf_t *cscf;
|
|
0
|
1199
|
|
|
1200 if (r->headers_in.host) {
|
|
|
1201 for (len = 0; len < r->headers_in.host->value.len; len++) {
|
|
26
|
1202 ch = r->headers_in.host->value.data[len];
|
|
|
1203
|
|
|
1204 if (ch == ':') {
|
|
0
|
1205 break;
|
|
|
1206 }
|
|
26
|
1207
|
|
|
1208 r->headers_in.host->value.data[len] = ngx_tolower(ch);
|
|
0
|
1209 }
|
|
54
|
1210
|
|
58
|
1211 if (r->headers_in.host->value.data[len - 1] == '.') {
|
|
|
1212 len--;
|
|
|
1213 }
|
|
|
1214
|
|
0
|
1215 r->headers_in.host_name_len = len;
|
|
|
1216
|
|
26
|
1217 if (ngx_http_find_virtual_server(r) != NGX_OK) {
|
|
54
|
1218 ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
|
|
|
1219 "client sent invalid \"Host\" header");
|
|
|
1220
|
|
|
1221 cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
|
|
|
1222
|
|
|
1223 if (cscf->restrict_host_names == NGX_HTTP_RESTRICT_HOST_CLOSE) {
|
|
|
1224 ngx_http_close_request(r, NGX_HTTP_BAD_REQUEST);
|
|
|
1225 ngx_http_close_connection(r->connection);
|
|
|
1226 return NGX_ERROR;
|
|
|
1227 }
|
|
|
1228
|
|
|
1229 ngx_http_finalize_request(r, NGX_HTTP_INVALID_HOST);
|
|
|
1230 return NGX_ERROR;
|
|
0
|
1231 }
|
|
|
1232
|
|
|
1233 } else {
|
|
|
1234 if (r->http_version > NGX_HTTP_VERSION_10) {
|
|
54
|
1235 ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
|
|
|
1236 "client sent HTTP/1.1 request without \"Host\" header");
|
|
|
1237 ngx_http_finalize_request(r, NGX_HTTP_BAD_REQUEST);
|
|
|
1238 return NGX_ERROR;
|
|
0
|
1239 }
|
|
54
|
1240
|
|
0
|
1241 r->headers_in.host_name_len = 0;
|
|
|
1242 }
|
|
|
1243
|
|
|
1244 if (r->headers_in.content_length) {
|
|
|
1245 r->headers_in.content_length_n =
|
|
50
|
1246 ngx_atosz(r->headers_in.content_length->value.data,
|
|
0
|
1247 r->headers_in.content_length->value.len);
|
|
|
1248
|
|
|
1249 if (r->headers_in.content_length_n == NGX_ERROR) {
|
|
54
|
1250 ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
|
|
|
1251 "client sent invalid \"Content-Length\" header");
|
|
|
1252 ngx_http_finalize_request(r, NGX_HTTP_BAD_REQUEST);
|
|
|
1253 return NGX_ERROR;
|
|
0
|
1254 }
|
|
|
1255 }
|
|
|
1256
|
|
32
|
1257 if (r->method == NGX_HTTP_POST && r->headers_in.content_length_n == -1) {
|
|
54
|
1258 ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
|
|
|
1259 "client sent POST method without \"Content-Length\" header");
|
|
|
1260 ngx_http_finalize_request(r, NGX_HTTP_BAD_REQUEST);
|
|
|
1261 return NGX_ERROR;
|
|
0
|
1262 }
|
|
|
1263
|
|
|
1264 if (r->plain_http) {
|
|
54
|
1265 ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
|
|
|
1266 "client sent plain HTTP request to HTTPS port");
|
|
|
1267 ngx_http_finalize_request(r, NGX_HTTP_TO_HTTPS);
|
|
|
1268 return NGX_ERROR;
|
|
0
|
1269 }
|
|
|
1270
|
|
|
1271 if (r->headers_in.connection) {
|
|
|
1272 if (r->headers_in.connection->value.len == 5
|
|
|
1273 && ngx_strcasecmp(r->headers_in.connection->value.data, "close")
|
|
58
|
1274 == 0)
|
|
0
|
1275 {
|
|
|
1276 r->headers_in.connection_type = NGX_HTTP_CONNECTION_CLOSE;
|
|
|
1277
|
|
|
1278 } else if (r->headers_in.connection->value.len == 10
|
|
|
1279 && ngx_strcasecmp(r->headers_in.connection->value.data,
|
|
58
|
1280 "keep-alive") == 0)
|
|
0
|
1281 {
|
|
|
1282 r->headers_in.connection_type = NGX_HTTP_CONNECTION_KEEP_ALIVE;
|
|
|
1283
|
|
|
1284 if (r->headers_in.keep_alive) {
|
|
|
1285 r->headers_in.keep_alive_n =
|
|
50
|
1286 ngx_atotm(r->headers_in.keep_alive->value.data,
|
|
0
|
1287 r->headers_in.keep_alive->value.len);
|
|
|
1288 }
|
|
|
1289 }
|
|
|
1290 }
|
|
|
1291
|
|
|
1292 if (r->headers_in.user_agent) {
|
|
|
1293
|
|
|
1294 /*
|
|
|
1295 * check some widespread browsers while the headers are still
|
|
|
1296 * in CPU cache
|
|
|
1297 */
|
|
|
1298
|
|
|
1299 user_agent = r->headers_in.user_agent->value.data;
|
|
|
1300
|
|
|
1301 ua = (u_char *) ngx_strstr(user_agent, "MSIE");
|
|
|
1302
|
|
|
1303 if (ua && ua + 8 < user_agent + r->headers_in.user_agent->value.len) {
|
|
|
1304
|
|
|
1305 r->headers_in.msie = 1;
|
|
|
1306
|
|
|
1307 if (ua[4] == ' ' && ua[5] == '4' && ua[6] == '.') {
|
|
|
1308 r->headers_in.msie4 = 1;
|
|
|
1309 }
|
|
|
1310
|
|
|
1311 #if 0
|
|
|
1312 /* MSIE ignores the SSL "close notify" alert */
|
|
22
|
1313 if (c->ssl) {
|
|
96
|
1314 c->ssl->no_send_shutdown = 1;
|
|
22
|
1315 }
|
|
0
|
1316 #endif
|
|
|
1317 }
|
|
|
1318
|
|
|
1319 if (ngx_strstr(user_agent, "Opera")) {
|
|
|
1320 r->headers_in.opera = 1;
|
|
|
1321 r->headers_in.msie = 0;
|
|
|
1322 r->headers_in.msie4 = 0;
|
|
|
1323 }
|
|
|
1324
|
|
|
1325 if (!r->headers_in.msie && !r->headers_in.opera) {
|
|
|
1326
|
|
|
1327 if (ngx_strstr(user_agent, "Gecko/")) {
|
|
|
1328 r->headers_in.gecko = 1;
|
|
|
1329
|
|
|
1330 } else if (ngx_strstr(user_agent, "Konqueror")) {
|
|
|
1331 r->headers_in.konqueror = 1;
|
|
|
1332 }
|
|
|
1333 }
|
|
|
1334 }
|
|
|
1335
|
|
|
1336 return NGX_OK;
|
|
|
1337 }
|
|
|
1338
|
|
|
1339
|
|
50
|
1340 static ngx_int_t
|
|
|
1341 ngx_http_find_virtual_server(ngx_http_request_t *r)
|
|
26
|
1342 {
|
|
|
1343 ngx_int_t rc;
|
|
58
|
1344 ngx_uint_t i, n, key;
|
|
26
|
1345 ngx_http_server_name_t *name;
|
|
56
|
1346 ngx_http_core_loc_conf_t *clcf;
|
|
26
|
1347 ngx_http_core_srv_conf_t *cscf;
|
|
56
|
1348 ngx_http_core_main_conf_t *cmcf;
|
|
26
|
1349
|
|
|
1350 if (r->virtual_names->hash) {
|
|
|
1351 cmcf = ngx_http_get_module_main_conf(r, ngx_http_core_module);
|
|
|
1352
|
|
|
1353 ngx_http_server_names_hash_key(key,
|
|
|
1354 r->headers_in.host->value.data,
|
|
|
1355 r->headers_in.host_name_len,
|
|
|
1356 cmcf->server_names_hash);
|
|
|
1357
|
|
|
1358 name = r->virtual_names->hash[key].elts;
|
|
|
1359 n = r->virtual_names->hash[key].nelts;
|
|
|
1360
|
|
|
1361 } else {
|
|
|
1362 name = r->virtual_names->names.elts;
|
|
|
1363 n = r->virtual_names->names.nelts;
|
|
|
1364 }
|
|
|
1365
|
|
|
1366 for (i = 0; i < n; i++) {
|
|
|
1367
|
|
|
1368 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1369 "server name: %V", &name[i].name);
|
|
|
1370
|
|
|
1371 if (r->headers_in.host_name_len != name[i].name.len) {
|
|
|
1372 continue;
|
|
|
1373 }
|
|
|
1374
|
|
|
1375 rc = ngx_strncmp(r->headers_in.host->value.data,
|
|
|
1376 name[i].name.data, name[i].name.len);
|
|
|
1377
|
|
|
1378 if (rc == 0) {
|
|
|
1379 r->server_name = name[i].name;
|
|
58
|
1380 goto found;
|
|
26
|
1381 }
|
|
|
1382
|
|
|
1383 if (rc < 0) {
|
|
|
1384 /* the server names are lexicographically sorted */
|
|
|
1385 break;
|
|
|
1386 }
|
|
|
1387 }
|
|
|
1388
|
|
58
|
1389 if (r->virtual_names->wildcards.nelts) {
|
|
26
|
1390
|
|
|
1391 name = r->virtual_names->wildcards.elts;
|
|
|
1392 for (i = 0; i < r->virtual_names->wildcards.nelts; i++) {
|
|
|
1393
|
|
|
1394 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1395 "server name: %V", &name[i].name);
|
|
|
1396
|
|
|
1397 if (r->headers_in.host_name_len <= name[i].name.len) {
|
|
|
1398 continue;
|
|
|
1399 }
|
|
|
1400
|
|
|
1401 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1402 "server name: %s",
|
|
|
1403 r->headers_in.host->value.data
|
|
|
1404 + (r->headers_in.host_name_len - name[i].name.len));
|
|
|
1405
|
|
|
1406 if (ngx_strncmp(r->headers_in.host->value.data
|
|
|
1407 + (r->headers_in.host_name_len - name[i].name.len),
|
|
|
1408 name[i].name.data, name[i].name.len) == 0)
|
|
|
1409 {
|
|
|
1410 r->server_name.len = r->headers_in.host_name_len;
|
|
|
1411 r->server_name.data = r->headers_in.host->value.data;
|
|
|
1412
|
|
58
|
1413 goto found;
|
|
26
|
1414 }
|
|
|
1415 }
|
|
|
1416 }
|
|
|
1417
|
|
58
|
1418 cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
|
|
|
1419
|
|
|
1420 if (cscf->restrict_host_names == NGX_HTTP_RESTRICT_HOST_OFF) {
|
|
26
|
1421 return NGX_OK;
|
|
|
1422 }
|
|
|
1423
|
|
58
|
1424 return NGX_ERROR;
|
|
|
1425
|
|
|
1426 found:
|
|
|
1427
|
|
|
1428 r->srv_conf = name[i].core_srv_conf->ctx->srv_conf;
|
|
|
1429 r->loc_conf = name[i].core_srv_conf->ctx->loc_conf;
|
|
|
1430
|
|
|
1431 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
1432 r->connection->log->file = clcf->err_log->file;
|
|
|
1433
|
|
|
1434 if (!(r->connection->log->log_level & NGX_LOG_DEBUG_CONNECTION)) {
|
|
|
1435 r->connection->log->log_level = clcf->err_log->log_level;
|
|
26
|
1436 }
|
|
|
1437
|
|
|
1438 return NGX_OK;
|
|
|
1439 }
|
|
|
1440
|
|
|
1441
|
|
58
|
1442 static void
|
|
|
1443 ngx_http_request_handler(ngx_event_t *ev)
|
|
|
1444 {
|
|
|
1445 ngx_connection_t *c;
|
|
|
1446 ngx_http_request_t *r;
|
|
|
1447
|
|
|
1448 c = ev->data;
|
|
|
1449 r = c->data;
|
|
|
1450
|
|
|
1451 if (ev->write) {
|
|
|
1452 r->write_event_handler(r);
|
|
|
1453
|
|
|
1454 } else {
|
|
|
1455 r->read_event_handler(r);
|
|
|
1456 }
|
|
|
1457 }
|
|
|
1458
|
|
|
1459
|
|
50
|
1460 void
|
|
58
|
1461 ngx_http_finalize_request(ngx_http_request_t *r, ngx_int_t rc)
|
|
0
|
1462 {
|
|
58
|
1463 ngx_http_request_t *pr;
|
|
0
|
1464 ngx_http_core_loc_conf_t *clcf;
|
|
|
1465
|
|
58
|
1466 if (rc == NGX_DONE) {
|
|
|
1467 /* r may be already destroyed when rc == NGX_DONE */
|
|
|
1468 return;
|
|
|
1469 }
|
|
|
1470
|
|
|
1471 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1472 "http finalize request: %d, \"%V\"", rc, &r->uri);
|
|
|
1473
|
|
60
|
1474 if (r->parent
|
|
|
1475 && (rc >= NGX_HTTP_SPECIAL_RESPONSE || rc == NGX_HTTP_NO_CONTENT))
|
|
|
1476 {
|
|
58
|
1477 ngx_http_finalize_request(r, ngx_http_special_response_handler(r, rc));
|
|
0
|
1478 return;
|
|
|
1479 }
|
|
|
1480
|
|
58
|
1481 if (r->parent || rc == NGX_AGAIN) {
|
|
74
|
1482 if (ngx_http_set_write_handler(r) != NGX_OK) {
|
|
|
1483 return;
|
|
|
1484 }
|
|
58
|
1485 }
|
|
|
1486
|
|
|
1487 r->done = 1;
|
|
|
1488
|
|
|
1489 if (r != r->connection->data) {
|
|
76
|
1490 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1491 "http finalize non-active request: \"%V\"", &r->uri);
|
|
58
|
1492 return;
|
|
|
1493 }
|
|
|
1494
|
|
|
1495 if (r->parent) {
|
|
|
1496
|
|
|
1497 pr = r->parent;
|
|
|
1498
|
|
76
|
1499 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1500 "http parent request: \"%V\"", &pr->uri);
|
|
|
1501
|
|
58
|
1502 if (rc != NGX_AGAIN) {
|
|
|
1503 pr->connection->data = pr;
|
|
|
1504 }
|
|
|
1505
|
|
|
1506 if (pr->postponed) {
|
|
|
1507
|
|
76
|
1508 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1509 "http request: \"%V\" has postponed", &pr->uri);
|
|
|
1510
|
|
58
|
1511 if (rc != NGX_AGAIN && pr->postponed->request == r) {
|
|
|
1512 pr->postponed = pr->postponed->next;
|
|
|
1513
|
|
|
1514 if (pr->postponed == NULL) {
|
|
|
1515 return;
|
|
|
1516 }
|
|
|
1517 }
|
|
|
1518
|
|
76
|
1519 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1520 "http request: \"%V\" still has postponed",
|
|
|
1521 &pr->uri);
|
|
|
1522
|
|
58
|
1523 if (pr->done) {
|
|
|
1524 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
76
|
1525 "http wake parent request: \"%V\"", &pr->uri);
|
|
58
|
1526
|
|
|
1527 pr->write_event_handler(pr);
|
|
|
1528 }
|
|
|
1529 }
|
|
|
1530
|
|
|
1531 return;
|
|
|
1532 }
|
|
0
|
1533
|
|
60
|
1534 if (rc >= NGX_HTTP_SPECIAL_RESPONSE || rc == NGX_HTTP_NO_CONTENT) {
|
|
0
|
1535
|
|
|
1536 if (r->connection->read->timer_set) {
|
|
|
1537 ngx_del_timer(r->connection->read);
|
|
|
1538 }
|
|
|
1539
|
|
|
1540 if (r->connection->write->timer_set) {
|
|
|
1541 ngx_del_timer(r->connection->write);
|
|
|
1542 }
|
|
|
1543
|
|
76
|
1544 if (r->connection->closed) {
|
|
0
|
1545 ngx_http_close_request(r, 0);
|
|
|
1546 ngx_http_close_connection(r->connection);
|
|
|
1547 return;
|
|
|
1548 }
|
|
|
1549
|
|
|
1550 ngx_http_finalize_request(r, ngx_http_special_response_handler(r, rc));
|
|
|
1551
|
|
|
1552 return;
|
|
76
|
1553 }
|
|
|
1554
|
|
|
1555 if (rc == NGX_ERROR || r->connection->closed) {
|
|
0
|
1556 ngx_http_close_request(r, 0);
|
|
|
1557 ngx_http_close_connection(r->connection);
|
|
|
1558 return;
|
|
76
|
1559 }
|
|
|
1560
|
|
|
1561 if (rc == NGX_AGAIN || r->out) {
|
|
74
|
1562 (void) ngx_http_set_write_handler(r);
|
|
0
|
1563 return;
|
|
|
1564 }
|
|
|
1565
|
|
|
1566 if (r->connection->read->timer_set) {
|
|
|
1567 ngx_del_timer(r->connection->read);
|
|
|
1568 }
|
|
|
1569
|
|
|
1570 if (r->connection->write->timer_set) {
|
|
|
1571 r->connection->write->delayed = 0;
|
|
|
1572 ngx_del_timer(r->connection->write);
|
|
|
1573 }
|
|
|
1574
|
|
|
1575 if (r->connection->read->pending_eof) {
|
|
22
|
1576 #if (NGX_HAVE_KQUEUE)
|
|
0
|
1577 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log,
|
|
|
1578 r->connection->read->kq_errno,
|
|
|
1579 "kevent() reported about an closed connection");
|
|
|
1580 #endif
|
|
|
1581 ngx_http_close_request(r, 0);
|
|
|
1582 ngx_http_close_connection(r->connection);
|
|
|
1583 return;
|
|
|
1584 }
|
|
|
1585
|
|
|
1586 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
1587
|
|
|
1588 if (!ngx_terminate
|
|
|
1589 && !ngx_exiting
|
|
|
1590 && r->keepalive != 0
|
|
|
1591 && clcf->keepalive_timeout > 0)
|
|
|
1592 {
|
|
|
1593 ngx_http_set_keepalive(r);
|
|
|
1594 return;
|
|
|
1595
|
|
|
1596 } else if (r->lingering_close && clcf->lingering_timeout > 0) {
|
|
|
1597 ngx_http_set_lingering_close(r);
|
|
|
1598 return;
|
|
|
1599 }
|
|
|
1600
|
|
|
1601 ngx_http_close_request(r, 0);
|
|
|
1602 ngx_http_close_connection(r->connection);
|
|
|
1603 }
|
|
|
1604
|
|
|
1605
|
|
74
|
1606 static ngx_int_t
|
|
50
|
1607 ngx_http_set_write_handler(ngx_http_request_t *r)
|
|
0
|
1608 {
|
|
|
1609 ngx_event_t *wev;
|
|
|
1610 ngx_http_core_loc_conf_t *clcf;
|
|
|
1611
|
|
58
|
1612 r->http_state = NGX_HTTP_WRITING_REQUEST_STATE;
|
|
|
1613
|
|
74
|
1614 r->write_event_handler = ngx_http_writer;
|
|
|
1615
|
|
76
|
1616 if (r->connection->closed) {
|
|
|
1617 return NGX_OK;
|
|
|
1618 }
|
|
|
1619
|
|
0
|
1620 wev = r->connection->write;
|
|
|
1621
|
|
|
1622 if (wev->ready && wev->delayed) {
|
|
74
|
1623 return NGX_OK;
|
|
0
|
1624 }
|
|
|
1625
|
|
58
|
1626 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
0
|
1627 if (!wev->delayed) {
|
|
|
1628 ngx_add_timer(wev, clcf->send_timeout);
|
|
|
1629 }
|
|
|
1630
|
|
2
|
1631 if (ngx_handle_write_event(wev, clcf->send_lowat) == NGX_ERROR) {
|
|
0
|
1632 ngx_http_close_request(r, 0);
|
|
|
1633 ngx_http_close_connection(r->connection);
|
|
74
|
1634 return NGX_ERROR;
|
|
0
|
1635 }
|
|
74
|
1636
|
|
|
1637 return NGX_OK;
|
|
0
|
1638 }
|
|
|
1639
|
|
|
1640
|
|
58
|
1641 static void
|
|
|
1642 ngx_http_writer(ngx_http_request_t *r)
|
|
0
|
1643 {
|
|
|
1644 int rc;
|
|
58
|
1645 ngx_event_t *wev;
|
|
0
|
1646 ngx_connection_t *c;
|
|
|
1647 ngx_http_core_loc_conf_t *clcf;
|
|
|
1648
|
|
58
|
1649 c = r->connection;
|
|
|
1650 wev = c->write;
|
|
|
1651
|
|
|
1652 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, wev->log, 0,
|
|
|
1653 "http writer handler: \"%V\"", &r->uri);
|
|
0
|
1654
|
|
|
1655 if (wev->timedout) {
|
|
|
1656 if (!wev->delayed) {
|
|
54
|
1657 ngx_log_error(NGX_LOG_INFO, c->log, NGX_ETIMEDOUT,
|
|
|
1658 "client timed out");
|
|
|
1659 c->timedout = 1;
|
|
|
1660 ngx_http_close_request(r, NGX_HTTP_REQUEST_TIME_OUT);
|
|
|
1661 ngx_http_close_connection(c);
|
|
0
|
1662 return;
|
|
|
1663 }
|
|
|
1664
|
|
|
1665 wev->timedout = 0;
|
|
|
1666 wev->delayed = 0;
|
|
|
1667
|
|
|
1668 if (!wev->ready) {
|
|
|
1669 clcf = ngx_http_get_module_loc_conf(r->main ? r->main : r,
|
|
|
1670 ngx_http_core_module);
|
|
|
1671 ngx_add_timer(wev, clcf->send_timeout);
|
|
|
1672
|
|
2
|
1673 if (ngx_handle_write_event(wev, clcf->send_lowat) == NGX_ERROR) {
|
|
0
|
1674 ngx_http_close_request(r, 0);
|
|
|
1675 ngx_http_close_connection(r->connection);
|
|
|
1676 }
|
|
|
1677
|
|
|
1678 return;
|
|
|
1679 }
|
|
|
1680
|
|
|
1681 } else {
|
|
|
1682 if (wev->delayed) {
|
|
|
1683 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, wev->log, 0,
|
|
|
1684 "http writer delayed");
|
|
|
1685
|
|
|
1686 clcf = ngx_http_get_module_loc_conf(r->main ? r->main : r,
|
|
|
1687 ngx_http_core_module);
|
|
2
|
1688
|
|
|
1689 if (ngx_handle_write_event(wev, clcf->send_lowat) == NGX_ERROR) {
|
|
0
|
1690 ngx_http_close_request(r, 0);
|
|
|
1691 ngx_http_close_connection(r->connection);
|
|
|
1692 }
|
|
|
1693
|
|
|
1694 return;
|
|
|
1695 }
|
|
|
1696 }
|
|
|
1697
|
|
58
|
1698 if (r->postponed) {
|
|
|
1699 rc = ngx_http_postponed_handler(r);
|
|
|
1700
|
|
|
1701 if (rc == NGX_DONE) {
|
|
|
1702 /* r may be already destroyed when rc == NGX_DONE */
|
|
|
1703 return;
|
|
|
1704 }
|
|
|
1705
|
|
|
1706 } else {
|
|
|
1707 rc = ngx_http_output_filter(r, NULL);
|
|
|
1708
|
|
|
1709 }
|
|
|
1710
|
|
|
1711 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
|
1712 "http writer output filter: %d, \"%V\"", rc, &r->uri);
|
|
0
|
1713
|
|
|
1714 if (rc == NGX_AGAIN) {
|
|
|
1715 clcf = ngx_http_get_module_loc_conf(r->main ? r->main : r,
|
|
|
1716 ngx_http_core_module);
|
|
|
1717 if (!wev->ready && !wev->delayed) {
|
|
|
1718 ngx_add_timer(wev, clcf->send_timeout);
|
|
|
1719 }
|
|
|
1720
|
|
2
|
1721 if (ngx_handle_write_event(wev, clcf->send_lowat) == NGX_ERROR) {
|
|
0
|
1722 ngx_http_close_request(r, 0);
|
|
|
1723 ngx_http_close_connection(r->connection);
|
|
|
1724 }
|
|
|
1725
|
|
|
1726 return;
|
|
|
1727 }
|
|
|
1728
|
|
58
|
1729 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, wev->log, 0,
|
|
|
1730 "http writer done: \"%V\"", &r->uri);
|
|
0
|
1731
|
|
|
1732 ngx_http_finalize_request(r, rc);
|
|
|
1733 }
|
|
|
1734
|
|
|
1735
|
|
58
|
1736 static ngx_int_t
|
|
|
1737 ngx_http_postponed_handler(ngx_http_request_t *r)
|
|
|
1738 {
|
|
|
1739 ngx_int_t rc;
|
|
|
1740 ngx_http_postponed_request_t *pr;
|
|
|
1741
|
|
|
1742 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1743 "http postpone handler \"%V\"", &r->uri);
|
|
|
1744
|
|
|
1745 pr = r->postponed;
|
|
|
1746
|
|
|
1747 if (pr->request == NULL) {
|
|
|
1748 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1749 "http postponed data \"%V\" %p", &r->uri, pr->out);
|
|
|
1750
|
|
|
1751 rc = ngx_http_output_filter(r, NULL);
|
|
|
1752
|
|
|
1753 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
76
|
1754 "http postponed output filter: %d", rc);
|
|
58
|
1755
|
|
76
|
1756 /*
|
|
|
1757 * we treat NGX_ERROR as NGX_OK, because we need to complete
|
|
|
1758 * all postponed requests
|
|
|
1759 */
|
|
58
|
1760
|
|
|
1761 pr = r->postponed;
|
|
|
1762
|
|
|
1763 if (pr == NULL) {
|
|
92
|
1764
|
|
|
1765 if (rc == NGX_AGAIN) {
|
|
|
1766 return NGX_AGAIN;
|
|
|
1767 }
|
|
|
1768
|
|
58
|
1769 return NGX_OK;
|
|
|
1770 }
|
|
|
1771 }
|
|
|
1772
|
|
|
1773 r = pr->request;
|
|
|
1774 r->connection->data = r;
|
|
|
1775
|
|
|
1776 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
76
|
1777 "http wake child request \"%V\"", &r->uri);
|
|
58
|
1778
|
|
|
1779 r->write_event_handler(r);
|
|
|
1780
|
|
|
1781 return NGX_DONE;
|
|
|
1782 }
|
|
|
1783
|
|
|
1784
|
|
50
|
1785 static void
|
|
58
|
1786 ngx_http_block_read(ngx_http_request_t *r)
|
|
0
|
1787 {
|
|
58
|
1788 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1789 "http read blocked");
|
|
0
|
1790
|
|
|
1791 /* aio does not call this handler */
|
|
|
1792
|
|
58
|
1793 if ((ngx_event_flags & NGX_USE_LEVEL_EVENT)
|
|
|
1794 && r->connection->read->active)
|
|
|
1795 {
|
|
|
1796 if (ngx_del_event(r->connection->read, NGX_READ_EVENT, 0)
|
|
|
1797 == NGX_ERROR)
|
|
|
1798 {
|
|
0
|
1799 ngx_http_close_request(r, 0);
|
|
58
|
1800 ngx_http_close_connection(r->connection);
|
|
0
|
1801 }
|
|
|
1802 }
|
|
|
1803 }
|
|
|
1804
|
|
|
1805
|
|
50
|
1806 ngx_int_t
|
|
|
1807 ngx_http_discard_body(ngx_http_request_t *r)
|
|
0
|
1808 {
|
|
|
1809 ssize_t size;
|
|
|
1810 ngx_event_t *rev;
|
|
|
1811
|
|
70
|
1812 if (r->main) {
|
|
|
1813 return NGX_OK;
|
|
|
1814 }
|
|
|
1815
|
|
0
|
1816 rev = r->connection->read;
|
|
|
1817
|
|
|
1818 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, rev->log, 0, "http set discard body");
|
|
|
1819
|
|
|
1820 if (rev->timer_set) {
|
|
|
1821 ngx_del_timer(rev);
|
|
|
1822 }
|
|
|
1823
|
|
|
1824 if (r->headers_in.content_length_n <= 0) {
|
|
|
1825 return NGX_OK;
|
|
|
1826 }
|
|
|
1827
|
|
86
|
1828 r->discard_body = 1;
|
|
|
1829
|
|
0
|
1830 size = r->header_in->last - r->header_in->pos;
|
|
|
1831
|
|
|
1832 if (size) {
|
|
|
1833 if (r->headers_in.content_length_n > size) {
|
|
|
1834 r->headers_in.content_length_n -= size;
|
|
|
1835
|
|
|
1836 } else {
|
|
|
1837 r->header_in->pos += r->headers_in.content_length_n;
|
|
|
1838 r->headers_in.content_length_n = 0;
|
|
|
1839 return NGX_OK;
|
|
|
1840 }
|
|
|
1841 }
|
|
|
1842
|
|
58
|
1843 r->read_event_handler = ngx_http_read_discarded_body_handler;
|
|
|
1844
|
|
|
1845 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) {
|
|
0
|
1846 return NGX_HTTP_INTERNAL_SERVER_ERROR;
|
|
|
1847 }
|
|
|
1848
|
|
|
1849 return ngx_http_read_discarded_body(r);
|
|
|
1850 }
|
|
|
1851
|
|
|
1852
|
|
50
|
1853 static void
|
|
58
|
1854 ngx_http_read_discarded_body_handler(ngx_http_request_t *r)
|
|
0
|
1855 {
|
|
58
|
1856 ngx_int_t rc;
|
|
0
|
1857
|
|
|
1858 rc = ngx_http_read_discarded_body(r);
|
|
|
1859
|
|
|
1860 if (rc == NGX_AGAIN) {
|
|
58
|
1861 if (ngx_handle_read_event(r->connection->read, 0) == NGX_ERROR) {
|
|
0
|
1862 ngx_http_close_request(r, rc);
|
|
58
|
1863 ngx_http_close_connection(r->connection);
|
|
0
|
1864 return;
|
|
|
1865 }
|
|
|
1866 }
|
|
|
1867
|
|
|
1868 if (rc != NGX_OK) {
|
|
|
1869 ngx_http_close_request(r, rc);
|
|
58
|
1870 ngx_http_close_connection(r->connection);
|
|
0
|
1871 }
|
|
|
1872 }
|
|
|
1873
|
|
|
1874
|
|
50
|
1875 static ngx_int_t
|
|
|
1876 ngx_http_read_discarded_body(ngx_http_request_t *r)
|
|
0
|
1877 {
|
|
|
1878 ssize_t size, n;
|
|
|
1879 u_char buffer[NGX_HTTP_DISCARD_BUFFER_SIZE];
|
|
|
1880
|
|
|
1881 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1882 "http read discarded body");
|
|
|
1883
|
|
|
1884 if (r->headers_in.content_length_n == 0) {
|
|
|
1885 return NGX_OK;
|
|
|
1886 }
|
|
|
1887
|
|
|
1888
|
|
|
1889 size = r->headers_in.content_length_n;
|
|
|
1890
|
|
|
1891 if (size > NGX_HTTP_DISCARD_BUFFER_SIZE) {
|
|
|
1892 size = NGX_HTTP_DISCARD_BUFFER_SIZE;
|
|
|
1893 }
|
|
|
1894
|
|
|
1895 n = r->connection->recv(r->connection, buffer, size);
|
|
|
1896
|
|
|
1897 if (n == NGX_ERROR) {
|
|
|
1898
|
|
76
|
1899 r->connection->closed = 1;
|
|
0
|
1900
|
|
|
1901 /*
|
|
|
1902 * if a client request body is discarded then we already set
|
|
|
1903 * some HTTP response code for client and we can ignore the error
|
|
|
1904 */
|
|
|
1905
|
|
|
1906 return NGX_OK;
|
|
|
1907 }
|
|
|
1908
|
|
|
1909 if (n == NGX_AGAIN) {
|
|
|
1910 return NGX_AGAIN;
|
|
|
1911 }
|
|
|
1912
|
|
|
1913 r->headers_in.content_length_n -= n;
|
|
|
1914
|
|
|
1915 return NGX_OK;
|
|
|
1916 }
|
|
|
1917
|
|
|
1918
|
|
50
|
1919 static void
|
|
|
1920 ngx_http_set_keepalive(ngx_http_request_t *r)
|
|
0
|
1921 {
|
|
2
|
1922 int tcp_nodelay;
|
|
0
|
1923 ngx_int_t i;
|
|
|
1924 ngx_buf_t *b, *f;
|
|
|
1925 ngx_event_t *rev, *wev;
|
|
|
1926 ngx_connection_t *c;
|
|
|
1927 ngx_http_connection_t *hc;
|
|
|
1928 ngx_http_core_srv_conf_t *cscf;
|
|
|
1929 ngx_http_core_loc_conf_t *clcf;
|
|
|
1930
|
|
|
1931 c = r->connection;
|
|
|
1932 rev = c->read;
|
|
|
1933
|
|
|
1934 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "set http keepalive handler");
|
|
|
1935
|
|
32
|
1936 c->log->action = "closing request";
|
|
0
|
1937
|
|
|
1938 hc = r->http_connection;
|
|
|
1939 b = r->header_in;
|
|
|
1940
|
|
|
1941 if (b->pos < b->last) {
|
|
|
1942
|
|
|
1943 /* the pipelined request */
|
|
|
1944
|
|
|
1945 if (b != c->buffer) {
|
|
|
1946
|
|
4
|
1947 /*
|
|
|
1948 * If the large header buffers were allocated while the previous
|
|
|
1949 * request processing then we do not use c->buffer for
|
|
|
1950 * the pipelined request (see ngx_http_init_request()).
|
|
|
1951 *
|
|
|
1952 * Now we would move the large header buffers to the free list.
|
|
|
1953 */
|
|
0
|
1954
|
|
|
1955 cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
|
|
|
1956
|
|
|
1957 if (hc->free == NULL) {
|
|
|
1958 hc->free = ngx_palloc(c->pool,
|
|
|
1959 cscf->large_client_header_buffers.num * sizeof(ngx_buf_t *));
|
|
|
1960
|
|
|
1961 if (hc->free == NULL) {
|
|
26
|
1962 ngx_http_close_request(r, 0);
|
|
0
|
1963 ngx_http_close_connection(c);
|
|
|
1964 return;
|
|
|
1965 }
|
|
|
1966 }
|
|
|
1967
|
|
|
1968 for (i = 0; i < hc->nbusy - 1; i++) {
|
|
|
1969 f = hc->busy[i];
|
|
|
1970 hc->free[hc->nfree++] = f;
|
|
|
1971 f->pos = f->start;
|
|
|
1972 f->last = f->start;
|
|
|
1973 }
|
|
|
1974
|
|
|
1975 hc->busy[0] = b;
|
|
|
1976 hc->nbusy = 1;
|
|
|
1977 }
|
|
|
1978 }
|
|
|
1979
|
|
26
|
1980 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
1981
|
|
0
|
1982 ngx_http_close_request(r, 0);
|
|
|
1983 c->data = hc;
|
|
|
1984
|
|
|
1985 ngx_add_timer(rev, clcf->keepalive_timeout);
|
|
|
1986
|
|
58
|
1987 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) {
|
|
0
|
1988 ngx_http_close_connection(c);
|
|
|
1989 return;
|
|
|
1990 }
|
|
|
1991
|
|
|
1992 wev = c->write;
|
|
58
|
1993 wev->handler = ngx_http_empty_handler;
|
|
0
|
1994
|
|
|
1995 if (b->pos < b->last) {
|
|
|
1996
|
|
|
1997 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "pipelined request");
|
|
|
1998
|
|
|
1999 hc->pipeline = 1;
|
|
32
|
2000 c->log->action = "reading client pipelined request line";
|
|
0
|
2001 ngx_http_init_request(rev);
|
|
|
2002 return;
|
|
|
2003 }
|
|
|
2004
|
|
|
2005 hc->pipeline = 0;
|
|
|
2006
|
|
4
|
2007 /*
|
|
|
2008 * To keep a memory footprint as small as possible for an idle
|
|
|
2009 * keepalive connection we try to free the ngx_http_request_t and
|
|
|
2010 * c->buffer's memory if they were allocated outside the c->pool.
|
|
|
2011 * The large header buffers are always allocated outside the c->pool and
|
|
|
2012 * are freed too.
|
|
|
2013 */
|
|
|
2014
|
|
0
|
2015 if (ngx_pfree(c->pool, r) == NGX_OK) {
|
|
|
2016 hc->request = NULL;
|
|
|
2017 }
|
|
|
2018
|
|
|
2019 b = c->buffer;
|
|
|
2020
|
|
|
2021 if (ngx_pfree(c->pool, b->start) == NGX_OK) {
|
|
4
|
2022
|
|
|
2023 /*
|
|
|
2024 * the special note for ngx_http_keepalive_handler() that
|
|
|
2025 * c->buffer's memory was freed
|
|
|
2026 */
|
|
|
2027
|
|
0
|
2028 b->pos = NULL;
|
|
|
2029
|
|
|
2030 } else {
|
|
|
2031 b->pos = b->start;
|
|
|
2032 b->last = b->start;
|
|
|
2033 }
|
|
|
2034
|
|
10
|
2035 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, c->log, 0, "hc free: %p %d",
|
|
0
|
2036 hc->free, hc->nfree);
|
|
|
2037
|
|
|
2038 if (hc->free) {
|
|
|
2039 for (i = 0; i < hc->nfree; i++) {
|
|
|
2040 ngx_pfree(c->pool, hc->free[i]);
|
|
|
2041 hc->free[i] = NULL;
|
|
|
2042 }
|
|
|
2043
|
|
|
2044 hc->nfree = 0;
|
|
|
2045 }
|
|
|
2046
|
|
10
|
2047 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, c->log, 0, "hc busy: %p %d",
|
|
0
|
2048 hc->busy, hc->nbusy);
|
|
|
2049
|
|
|
2050 if (hc->busy) {
|
|
|
2051 for (i = 0; i < hc->nbusy; i++) {
|
|
|
2052 ngx_pfree(c->pool, hc->busy[i]);
|
|
|
2053 hc->busy[i] = NULL;
|
|
|
2054 }
|
|
|
2055
|
|
|
2056 hc->nbusy = 0;
|
|
|
2057 }
|
|
|
2058
|
|
58
|
2059 rev->handler = ngx_http_keepalive_handler;
|
|
0
|
2060
|
|
|
2061 if (wev->active) {
|
|
4
|
2062 if (ngx_event_flags & NGX_USE_KQUEUE_EVENT) {
|
|
0
|
2063 if (ngx_del_event(wev, NGX_WRITE_EVENT, NGX_DISABLE_EVENT)
|
|
|
2064 == NGX_ERROR)
|
|
|
2065 {
|
|
|
2066 ngx_http_close_connection(c);
|
|
|
2067 return;
|
|
|
2068 }
|
|
|
2069
|
|
|
2070 } else if (ngx_event_flags & NGX_USE_LEVEL_EVENT) {
|
|
|
2071 if (ngx_del_event(wev, NGX_WRITE_EVENT, 0) == NGX_ERROR) {
|
|
|
2072 ngx_http_close_connection(c);
|
|
|
2073 return;
|
|
|
2074 }
|
|
|
2075 }
|
|
|
2076 }
|
|
|
2077
|
|
32
|
2078 c->log->action = "keepalive";
|
|
0
|
2079
|
|
|
2080 if (c->tcp_nopush == NGX_TCP_NOPUSH_SET) {
|
|
50
|
2081 if (ngx_tcp_push(c->fd) == -1) {
|
|
0
|
2082 ngx_connection_error(c, ngx_socket_errno, ngx_tcp_push_n " failed");
|
|
|
2083 ngx_http_close_connection(c);
|
|
|
2084 return;
|
|
|
2085 }
|
|
2
|
2086
|
|
0
|
2087 c->tcp_nopush = NGX_TCP_NOPUSH_UNSET;
|
|
22
|
2088 tcp_nodelay = ngx_tcp_nodelay_and_tcp_nopush ? 1 : 0;
|
|
2
|
2089
|
|
|
2090 } else {
|
|
22
|
2091 tcp_nodelay = 1;
|
|
|
2092 }
|
|
|
2093
|
|
32
|
2094 if (tcp_nodelay
|
|
|
2095 && clcf->tcp_nodelay
|
|
|
2096 && c->tcp_nodelay == NGX_TCP_NODELAY_UNSET)
|
|
|
2097 {
|
|
22
|
2098 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "tcp_nodelay");
|
|
|
2099
|
|
|
2100 if (setsockopt(c->fd, IPPROTO_TCP, TCP_NODELAY,
|
|
|
2101 (const void *) &tcp_nodelay, sizeof(int)) == -1)
|
|
|
2102 {
|
|
|
2103 ngx_connection_error(c, ngx_socket_errno,
|
|
|
2104 "setsockopt(TCP_NODELAY) failed");
|
|
|
2105 ngx_http_close_connection(c);
|
|
|
2106 return;
|
|
2
|
2107 }
|
|
22
|
2108
|
|
32
|
2109 c->tcp_nodelay = NGX_TCP_NODELAY_SET;
|
|
0
|
2110 }
|
|
|
2111
|
|
|
2112 #if 0
|
|
4
|
2113 /* if ngx_http_request_t was freed then we need some other place */
|
|
0
|
2114 r->http_state = NGX_HTTP_KEEPALIVE_STATE;
|
|
|
2115 #endif
|
|
|
2116
|
|
|
2117 if (rev->ready) {
|
|
|
2118 ngx_http_keepalive_handler(rev);
|
|
|
2119 }
|
|
|
2120 }
|
|
|
2121
|
|
|
2122
|
|
50
|
2123 static void
|
|
|
2124 ngx_http_keepalive_handler(ngx_event_t *rev)
|
|
0
|
2125 {
|
|
50
|
2126 size_t size;
|
|
|
2127 ssize_t n;
|
|
|
2128 ngx_buf_t *b;
|
|
|
2129 ngx_connection_t *c;
|
|
0
|
2130
|
|
|
2131 c = rev->data;
|
|
|
2132
|
|
|
2133 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "http keepalive handler");
|
|
|
2134
|
|
|
2135 if (rev->timedout) {
|
|
|
2136 ngx_http_close_connection(c);
|
|
|
2137 return;
|
|
|
2138 }
|
|
|
2139
|
|
18
|
2140 #if (NGX_HAVE_KQUEUE)
|
|
0
|
2141
|
|
4
|
2142 if (ngx_event_flags & NGX_USE_KQUEUE_EVENT) {
|
|
0
|
2143 if (rev->pending_eof) {
|
|
32
|
2144 c->log->handler = NULL;
|
|
0
|
2145 ngx_log_error(NGX_LOG_INFO, c->log, rev->kq_errno,
|
|
10
|
2146 "kevent() reported that client %V closed "
|
|
32
|
2147 "keepalive connection", &c->addr_text);
|
|
22
|
2148 #if (NGX_HTTP_SSL)
|
|
|
2149 if (c->ssl) {
|
|
96
|
2150 c->ssl->no_send_shutdown = 1;
|
|
22
|
2151 }
|
|
|
2152 #endif
|
|
0
|
2153 ngx_http_close_connection(c);
|
|
|
2154 return;
|
|
|
2155 }
|
|
|
2156 }
|
|
|
2157
|
|
|
2158 #endif
|
|
|
2159
|
|
|
2160 b = c->buffer;
|
|
|
2161 size = b->end - b->start;
|
|
|
2162
|
|
|
2163 if (b->pos == NULL) {
|
|
4
|
2164
|
|
|
2165 /*
|
|
|
2166 * The c->buffer's memory was freed by ngx_http_set_keepalive().
|
|
|
2167 * However, the c->buffer->start and c->buffer->end were not changed
|
|
|
2168 * to keep the buffer size.
|
|
|
2169 */
|
|
|
2170
|
|
50
|
2171 b->pos = ngx_palloc(c->pool, size);
|
|
|
2172 if (b->pos == NULL) {
|
|
0
|
2173 ngx_http_close_connection(c);
|
|
|
2174 return;
|
|
|
2175 }
|
|
|
2176
|
|
|
2177 b->start = b->pos;
|
|
|
2178 b->last = b->pos;
|
|
|
2179 b->end = b->pos + size;
|
|
|
2180 }
|
|
|
2181
|
|
|
2182 /*
|
|
|
2183 * MSIE closes a keepalive connection with RST flag
|
|
|
2184 * so we ignore ECONNRESET here.
|
|
|
2185 */
|
|
|
2186
|
|
|
2187 c->log_error = NGX_ERROR_IGNORE_ECONNRESET;
|
|
|
2188 ngx_set_socket_errno(0);
|
|
|
2189
|
|
|
2190 n = c->recv(c, b->last, size);
|
|
|
2191 c->log_error = NGX_ERROR_INFO;
|
|
|
2192
|
|
|
2193 if (n == NGX_AGAIN) {
|
|
58
|
2194 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) {
|
|
24
|
2195 ngx_http_close_connection(c);
|
|
|
2196 }
|
|
|
2197
|
|
0
|
2198 return;
|
|
|
2199 }
|
|
|
2200
|
|
|
2201 if (n == NGX_ERROR) {
|
|
|
2202 ngx_http_close_connection(c);
|
|
|
2203 return;
|
|
|
2204 }
|
|
|
2205
|
|
32
|
2206 c->log->handler = NULL;
|
|
0
|
2207
|
|
|
2208 if (n == 0) {
|
|
|
2209 ngx_log_error(NGX_LOG_INFO, c->log, ngx_socket_errno,
|
|
32
|
2210 "client %V closed keepalive connection", &c->addr_text);
|
|
0
|
2211 ngx_http_close_connection(c);
|
|
|
2212 return;
|
|
|
2213 }
|
|
|
2214
|
|
|
2215 b->last += n;
|
|
32
|
2216
|
|
|
2217 c->log->handler = ngx_http_log_error;
|
|
|
2218 c->log->action = "reading client request line";
|
|
0
|
2219
|
|
|
2220 ngx_http_init_request(rev);
|
|
|
2221 }
|
|
|
2222
|
|
|
2223
|
|
50
|
2224 static void
|
|
|
2225 ngx_http_set_lingering_close(ngx_http_request_t *r)
|
|
0
|
2226 {
|
|
|
2227 ngx_event_t *rev, *wev;
|
|
|
2228 ngx_connection_t *c;
|
|
|
2229 ngx_http_core_loc_conf_t *clcf;
|
|
|
2230
|
|
|
2231 c = r->connection;
|
|
|
2232
|
|
|
2233 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
2234
|
|
|
2235 rev = c->read;
|
|
58
|
2236 rev->handler = ngx_http_lingering_close_handler;
|
|
0
|
2237
|
|
|
2238 r->lingering_time = ngx_time() + clcf->lingering_time / 1000;
|
|
|
2239 ngx_add_timer(rev, clcf->lingering_timeout);
|
|
|
2240
|
|
58
|
2241 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) {
|
|
0
|
2242 ngx_http_close_request(r, 0);
|
|
|
2243 ngx_http_close_connection(c);
|
|
|
2244 return;
|
|
|
2245 }
|
|
|
2246
|
|
|
2247 wev = c->write;
|
|
58
|
2248 wev->handler = ngx_http_empty_handler;
|
|
0
|
2249
|
|
|
2250 if (wev->active) {
|
|
4
|
2251 if (ngx_event_flags & NGX_USE_KQUEUE_EVENT) {
|
|
0
|
2252 if (ngx_del_event(wev, NGX_WRITE_EVENT, NGX_DISABLE_EVENT)
|
|
|
2253 == NGX_ERROR)
|
|
|
2254 {
|
|
26
|
2255 ngx_http_close_request(r, 0);
|
|
0
|
2256 ngx_http_close_connection(c);
|
|
|
2257 return;
|
|
|
2258 }
|
|
|
2259
|
|
|
2260 } else if (ngx_event_flags & NGX_USE_LEVEL_EVENT) {
|
|
|
2261 if (ngx_del_event(wev, NGX_WRITE_EVENT, 0) == NGX_ERROR) {
|
|
26
|
2262 ngx_http_close_request(r, 0);
|
|
0
|
2263 ngx_http_close_connection(c);
|
|
|
2264 return;
|
|
|
2265 }
|
|
|
2266 }
|
|
|
2267 }
|
|
|
2268
|
|
|
2269 if (ngx_shutdown_socket(c->fd, NGX_WRITE_SHUTDOWN) == -1) {
|
|
|
2270 ngx_connection_error(c, ngx_socket_errno,
|
|
|
2271 ngx_shutdown_socket_n " failed");
|
|
|
2272 ngx_http_close_request(r, 0);
|
|
|
2273 ngx_http_close_connection(c);
|
|
|
2274 return;
|
|
|
2275 }
|
|
|
2276
|
|
|
2277 if (rev->ready) {
|
|
|
2278 ngx_http_lingering_close_handler(rev);
|
|
|
2279 }
|
|
|
2280 }
|
|
|
2281
|
|
|
2282
|
|
50
|
2283 static void
|
|
|
2284 ngx_http_lingering_close_handler(ngx_event_t *rev)
|
|
0
|
2285 {
|
|
|
2286 ssize_t n;
|
|
|
2287 ngx_msec_t timer;
|
|
|
2288 ngx_connection_t *c;
|
|
|
2289 ngx_http_request_t *r;
|
|
|
2290 ngx_http_core_loc_conf_t *clcf;
|
|
|
2291 u_char buffer[NGX_HTTP_LINGERING_BUFFER_SIZE];
|
|
|
2292
|
|
|
2293 c = rev->data;
|
|
|
2294 r = c->data;
|
|
|
2295
|
|
|
2296 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
|
2297 "http lingering close handler");
|
|
|
2298
|
|
|
2299 if (rev->timedout) {
|
|
|
2300 ngx_http_close_request(r, 0);
|
|
|
2301 ngx_http_close_connection(c);
|
|
|
2302 return;
|
|
|
2303 }
|
|
|
2304
|
|
|
2305 timer = r->lingering_time - ngx_time();
|
|
|
2306 if (timer <= 0) {
|
|
|
2307 ngx_http_close_request(r, 0);
|
|
|
2308 ngx_http_close_connection(c);
|
|
|
2309 return;
|
|
|
2310 }
|
|
|
2311
|
|
|
2312 do {
|
|
|
2313 n = c->recv(c, buffer, NGX_HTTP_LINGERING_BUFFER_SIZE);
|
|
|
2314
|
|
|
2315 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0, "lingering read: %d", n);
|
|
|
2316
|
|
|
2317 if (n == NGX_ERROR || n == 0) {
|
|
|
2318 ngx_http_close_request(r, 0);
|
|
|
2319 ngx_http_close_connection(c);
|
|
|
2320 return;
|
|
|
2321 }
|
|
|
2322
|
|
|
2323 } while (rev->ready);
|
|
|
2324
|
|
58
|
2325 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) {
|
|
26
|
2326 ngx_http_close_request(r, 0);
|
|
24
|
2327 ngx_http_close_connection(c);
|
|
|
2328 return;
|
|
|
2329 }
|
|
|
2330
|
|
0
|
2331 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
2332
|
|
|
2333 timer *= 1000;
|
|
|
2334
|
|
|
2335 if (timer > clcf->lingering_timeout) {
|
|
|
2336 timer = clcf->lingering_timeout;
|
|
|
2337 }
|
|
|
2338
|
|
|
2339 ngx_add_timer(rev, timer);
|
|
|
2340 }
|
|
|
2341
|
|
|
2342
|
|
50
|
2343 void
|
|
|
2344 ngx_http_empty_handler(ngx_event_t *wev)
|
|
0
|
2345 {
|
|
|
2346 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, wev->log, 0, "http empty handler");
|
|
|
2347
|
|
|
2348 return;
|
|
|
2349 }
|
|
|
2350
|
|
|
2351
|
|
58
|
2352 void
|
|
|
2353 ngx_http_request_empty_handler(ngx_http_request_t *r)
|
|
|
2354 {
|
|
|
2355 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
2356 "http requets empty handler");
|
|
|
2357
|
|
|
2358 return;
|
|
|
2359 }
|
|
|
2360
|
|
|
2361
|
|
50
|
2362 ngx_int_t
|
|
|
2363 ngx_http_send_last(ngx_http_request_t *r)
|
|
0
|
2364 {
|
|
|
2365 ngx_buf_t *b;
|
|
|
2366 ngx_chain_t out;
|
|
|
2367
|
|
50
|
2368 b = ngx_calloc_buf(r->pool);
|
|
|
2369 if (b == NULL) {
|
|
0
|
2370 return NGX_ERROR;
|
|
|
2371 }
|
|
|
2372
|
|
|
2373 b->last_buf = 1;
|
|
|
2374 out.buf = b;
|
|
|
2375 out.next = NULL;
|
|
|
2376
|
|
|
2377 return ngx_http_output_filter(r, &out);
|
|
|
2378 }
|
|
|
2379
|
|
|
2380
|
|
50
|
2381 void
|
|
58
|
2382 ngx_http_close_request(ngx_http_request_t *r, ngx_int_t error)
|
|
0
|
2383 {
|
|
|
2384 ngx_log_t *log;
|
|
58
|
2385 struct linger linger;
|
|
0
|
2386 ngx_http_log_ctx_t *ctx;
|
|
|
2387 ngx_http_core_loc_conf_t *clcf;
|
|
|
2388
|
|
|
2389 log = r->connection->log;
|
|
|
2390
|
|
|
2391 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, log, 0, "http close request");
|
|
|
2392
|
|
|
2393 if (r->pool == NULL) {
|
|
80
|
2394 ngx_log_error(NGX_LOG_ALERT, log, 0, "http request already closed");
|
|
0
|
2395 return;
|
|
|
2396 }
|
|
|
2397
|
|
|
2398 #if (NGX_STAT_STUB)
|
|
|
2399 if (r->stat_reading) {
|
|
42
|
2400 ngx_atomic_dec(ngx_stat_reading);
|
|
0
|
2401 }
|
|
|
2402
|
|
|
2403 if (r->stat_writing) {
|
|
42
|
2404 ngx_atomic_dec(ngx_stat_writing);
|
|
0
|
2405 }
|
|
|
2406 #endif
|
|
|
2407
|
|
|
2408 if (error && r->headers_out.status == 0) {
|
|
|
2409 r->headers_out.status = error;
|
|
|
2410 }
|
|
|
2411
|
|
|
2412 ngx_http_log_handler(r);
|
|
|
2413
|
|
|
2414 if (r->connection->timedout) {
|
|
|
2415 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
2416
|
|
|
2417 if (clcf->reset_timedout_connection) {
|
|
58
|
2418 linger.l_onoff = 1;
|
|
|
2419 linger.l_linger = 0;
|
|
0
|
2420
|
|
|
2421 if (setsockopt(r->connection->fd, SOL_SOCKET, SO_LINGER,
|
|
58
|
2422 (const void *) &linger, sizeof(struct linger)) == -1)
|
|
0
|
2423 {
|
|
|
2424 ngx_log_error(NGX_LOG_ALERT, log, ngx_socket_errno,
|
|
|
2425 "setsockopt(SO_LINGER) failed");
|
|
|
2426 }
|
|
|
2427 }
|
|
|
2428 }
|
|
|
2429
|
|
58
|
2430 /* the various request strings were allocated from r->pool */
|
|
0
|
2431 ctx = log->data;
|
|
10
|
2432 ctx->request = NULL;
|
|
0
|
2433
|
|
|
2434 r->request_line.len = 0;
|
|
|
2435
|
|
|
2436 ngx_destroy_pool(r->pool);
|
|
|
2437 }
|
|
|
2438
|
|
|
2439
|
|
80
|
2440 static void
|
|
50
|
2441 ngx_http_close_connection(ngx_connection_t *c)
|
|
0
|
2442 {
|
|
28
|
2443 ngx_pool_t *pool;
|
|
|
2444
|
|
0
|
2445 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
|
2446 "close http connection: %d", c->fd);
|
|
|
2447
|
|
88
|
2448 #if (NGX_HTTP_SSL)
|
|
2
|
2449
|
|
|
2450 if (c->ssl) {
|
|
|
2451 if (ngx_ssl_shutdown(c) == NGX_AGAIN) {
|
|
80
|
2452 c->read->handler = ngx_http_ssl_close_handler;
|
|
|
2453 c->write->handler = ngx_http_ssl_close_handler;
|
|
2
|
2454 return;
|
|
|
2455 }
|
|
|
2456 }
|
|
|
2457
|
|
|
2458 #endif
|
|
|
2459
|
|
0
|
2460 #if (NGX_STAT_STUB)
|
|
42
|
2461 ngx_atomic_dec(ngx_stat_active);
|
|
0
|
2462 #endif
|
|
|
2463
|
|
28
|
2464 pool = c->pool;
|
|
|
2465
|
|
0
|
2466 ngx_close_connection(c);
|
|
28
|
2467
|
|
50
|
2468 ngx_destroy_pool(pool);
|
|
0
|
2469 }
|
|
|
2470
|
|
|
2471
|
|
88
|
2472 #if (NGX_HTTP_SSL)
|
|
|
2473
|
|
|
2474 static void
|
|
|
2475 ngx_http_ssl_close_handler(ngx_event_t *ev)
|
|
|
2476 {
|
|
|
2477 ngx_connection_t *c;
|
|
|
2478
|
|
|
2479 c = ev->data;
|
|
|
2480
|
|
|
2481 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, ev->log, 0, "http ssl close handler");
|
|
|
2482
|
|
|
2483 if (ngx_ssl_shutdown(c) == NGX_AGAIN) {
|
|
|
2484 return;
|
|
|
2485 }
|
|
|
2486
|
|
|
2487 ngx_http_close_connection(c);
|
|
|
2488 }
|
|
|
2489
|
|
|
2490 #endif
|
|
|
2491
|
|
|
2492
|
|
50
|
2493 static u_char *
|
|
|
2494 ngx_http_log_error(ngx_log_t *log, u_char *buf, size_t len)
|
|
0
|
2495 {
|
|
32
|
2496 u_char *p;
|
|
54
|
2497 ngx_http_request_t *r;
|
|
32
|
2498 ngx_http_log_ctx_t *ctx;
|
|
10
|
2499
|
|
32
|
2500 if (log->action) {
|
|
58
|
2501 p = ngx_snprintf(buf, len, " while %s", log->action);
|
|
10
|
2502 len -= p - buf;
|
|
54
|
2503 buf = p;
|
|
10
|
2504 }
|
|
|
2505
|
|
58
|
2506 ctx = log->data;
|
|
|
2507
|
|
54
|
2508 p = ngx_snprintf(buf, len, ", client: %V", ctx->client);
|
|
58
|
2509 len -= p - buf;
|
|
54
|
2510
|
|
|
2511 r = ctx->request;
|
|
|
2512
|
|
58
|
2513 if (r) {
|
|
|
2514 return r->log_handler(r, p, len);
|
|
0
|
2515 }
|
|
10
|
2516
|
|
58
|
2517 return p;
|
|
|
2518 }
|
|
|
2519
|
|
|
2520
|
|
|
2521 static u_char *
|
|
|
2522 ngx_http_log_error_handler(ngx_http_request_t *r, u_char *buf, size_t len)
|
|
|
2523 {
|
|
|
2524 u_char *p;
|
|
54
|
2525
|
|
|
2526 if (r->server_name.data) {
|
|
|
2527 p = ngx_snprintf(buf, len, ", server: %V", &r->server_name);
|
|
52
|
2528 len -= p - buf;
|
|
54
|
2529 buf = p;
|
|
52
|
2530 }
|
|
|
2531
|
|
54
|
2532 if (r->unparsed_uri.data) {
|
|
|
2533 p = ngx_snprintf(buf, len, ", URL: \"%V\"", &r->unparsed_uri);
|
|
|
2534 len -= p - buf;
|
|
|
2535 buf = p;
|
|
|
2536
|
|
|
2537 } else {
|
|
|
2538 if (r->request_line.data == NULL && r->request_start) {
|
|
|
2539 for (p = r->request_start; p < r->header_in->last; p++) {
|
|
|
2540 if (*p == CR || *p == LF) {
|
|
|
2541 break;
|
|
|
2542 }
|
|
|
2543 }
|
|
|
2544
|
|
|
2545 r->request_line.len = p - r->request_start;
|
|
|
2546 r->request_line.data = r->request_start;
|
|
|
2547 }
|
|
|
2548
|
|
|
2549 if (r->request_line.len) {
|
|
|
2550 p = ngx_snprintf(buf, len, ", request: \"%V\"", &r->request_line);
|
|
|
2551 len -= p - buf;
|
|
|
2552 buf = p;
|
|
|
2553 }
|
|
10
|
2554 }
|
|
|
2555
|
|
54
|
2556 return ngx_http_log_error_info(r, buf, len);
|
|
0
|
2557 }
|
|
54
|
2558
|
|
|
2559
|
|
|
2560 u_char *
|
|
|
2561 ngx_http_log_error_info(ngx_http_request_t *r, u_char *buf, size_t len)
|
|
|
2562 {
|
|
|
2563 u_char *p;
|
|
|
2564
|
|
|
2565 if (r->headers_in.host) {
|
|
|
2566 p = ngx_snprintf(buf, len, ", host: \"%V\"",
|
|
|
2567 &r->headers_in.host->value);
|
|
|
2568 len -= p - buf;
|
|
|
2569 buf = p;
|
|
|
2570 }
|
|
|
2571
|
|
|
2572 if (r->headers_in.referer) {
|
|
|
2573 p = ngx_snprintf(buf, len, ", referrer: \"%V\"",
|
|
|
2574 &r->headers_in.referer->value);
|
|
|
2575 buf = p;
|
|
|
2576 }
|
|
|
2577
|
|
|
2578 return buf;
|
|
|
2579 }
|
