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