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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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660
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4 * Copyright (C) Nginx, Inc.
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0
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5 */
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6
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7
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8 #include <ngx_config.h>
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9 #include <ngx_core.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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376
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24 static ngx_int_t ngx_http_process_host(ngx_http_request_t *r,
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25 ngx_table_elt_t *h, ngx_uint_t offset);
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336
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26 static ngx_int_t ngx_http_process_connection(ngx_http_request_t *r,
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27 ngx_table_elt_t *h, ngx_uint_t offset);
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376
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28 static ngx_int_t ngx_http_process_user_agent(ngx_http_request_t *r,
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29 ngx_table_elt_t *h, ngx_uint_t offset);
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58
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30 static ngx_int_t ngx_http_process_cookie(ngx_http_request_t *r,
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31 ngx_table_elt_t *h, ngx_uint_t offset);
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32
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0
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33 static ngx_int_t ngx_http_process_request_header(ngx_http_request_t *r);
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308
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34 static void ngx_http_process_request(ngx_http_request_t *r);
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530
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35 static ssize_t ngx_http_validate_host(ngx_http_request_t *r, u_char **host,
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36 size_t len, ngx_uint_t alloc);
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376
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37 static ngx_int_t ngx_http_find_virtual_server(ngx_http_request_t *r,
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38 u_char *host, size_t len);
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0
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39
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58
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40 static void ngx_http_request_handler(ngx_event_t *ev);
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518
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41 static void ngx_http_terminate_request(ngx_http_request_t *r, ngx_int_t rc);
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42 static void ngx_http_terminate_handler(ngx_http_request_t *r);
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43 static void ngx_http_finalize_connection(ngx_http_request_t *r);
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74
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44 static ngx_int_t ngx_http_set_write_handler(ngx_http_request_t *r);
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58
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45 static void ngx_http_writer(ngx_http_request_t *r);
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426
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46 static void ngx_http_request_finalizer(ngx_http_request_t *r);
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58
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47
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0
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48 static void ngx_http_set_keepalive(ngx_http_request_t *r);
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49 static void ngx_http_keepalive_handler(ngx_event_t *ev);
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50 static void ngx_http_set_lingering_close(ngx_http_request_t *r);
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51 static void ngx_http_lingering_close_handler(ngx_event_t *ev);
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162
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52 static ngx_int_t ngx_http_post_action(ngx_http_request_t *r);
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80
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53 static void ngx_http_close_request(ngx_http_request_t *r, ngx_int_t error);
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518
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54 static void ngx_http_free_request(ngx_http_request_t *r, ngx_int_t error);
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412
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55 static void ngx_http_log_request(ngx_http_request_t *r);
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80
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56 static void ngx_http_close_connection(ngx_connection_t *c);
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0
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57
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32
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58 static u_char *ngx_http_log_error(ngx_log_t *log, u_char *buf, size_t len);
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214
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59 static u_char *ngx_http_log_error_handler(ngx_http_request_t *r,
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60 ngx_http_request_t *sr, u_char *buf, size_t len);
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0
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61
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88
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62 #if (NGX_HTTP_SSL)
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63 static void ngx_http_ssl_handshake(ngx_event_t *rev);
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96
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64 static void ngx_http_ssl_handshake_handler(ngx_connection_t *c);
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88
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65 #endif
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66
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0
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67
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54
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68 static char *ngx_http_client_errors[] = {
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69
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70 /* NGX_HTTP_PARSE_INVALID_METHOD */
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71 "client sent invalid method",
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72
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73 /* NGX_HTTP_PARSE_INVALID_REQUEST */
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74 "client sent invalid request",
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75
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76 /* NGX_HTTP_PARSE_INVALID_09_METHOD */
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77 "client sent invalid method in HTTP/0.9 request"
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0
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78 };
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79
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80
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81 ngx_http_header_t ngx_http_headers_in[] = {
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400
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82 { ngx_string("Host"), offsetof(ngx_http_headers_in_t, host),
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83 ngx_http_process_host },
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84
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85 { ngx_string("Connection"), offsetof(ngx_http_headers_in_t, connection),
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86 ngx_http_process_connection },
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58
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87
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0
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88 { ngx_string("If-Modified-Since"),
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58
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89 offsetof(ngx_http_headers_in_t, if_modified_since),
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332
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90 ngx_http_process_unique_header_line },
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58
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91
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608
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92 { ngx_string("If-Unmodified-Since"),
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93 offsetof(ngx_http_headers_in_t, if_unmodified_since),
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94 ngx_http_process_unique_header_line },
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95
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400
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96 { ngx_string("User-Agent"), offsetof(ngx_http_headers_in_t, user_agent),
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97 ngx_http_process_user_agent },
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58
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98
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99 { ngx_string("Referer"), offsetof(ngx_http_headers_in_t, referer),
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100 ngx_http_process_header_line },
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101
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0
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102 { ngx_string("Content-Length"),
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58
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103 offsetof(ngx_http_headers_in_t, content_length),
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72
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104 ngx_http_process_unique_header_line },
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58
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105
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28
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106 { ngx_string("Content-Type"),
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58
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107 offsetof(ngx_http_headers_in_t, content_type),
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108 ngx_http_process_header_line },
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109
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110 { ngx_string("Range"), offsetof(ngx_http_headers_in_t, range),
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111 ngx_http_process_header_line },
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112
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346
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113 { ngx_string("If-Range"),
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114 offsetof(ngx_http_headers_in_t, if_range),
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115 ngx_http_process_unique_header_line },
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116
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130
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117 { ngx_string("Transfer-Encoding"),
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118 offsetof(ngx_http_headers_in_t, transfer_encoding),
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119 ngx_http_process_header_line },
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120
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384
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121 { ngx_string("Expect"),
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122 offsetof(ngx_http_headers_in_t, expect),
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123 ngx_http_process_unique_header_line },
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124
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0
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125 #if (NGX_HTTP_GZIP)
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126 { ngx_string("Accept-Encoding"),
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58
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127 offsetof(ngx_http_headers_in_t, accept_encoding),
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128 ngx_http_process_header_line },
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129
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130 { ngx_string("Via"), offsetof(ngx_http_headers_in_t, via),
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131 ngx_http_process_header_line },
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0
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132 #endif
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133
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134 { ngx_string("Authorization"),
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58
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135 offsetof(ngx_http_headers_in_t, authorization),
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72
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136 ngx_http_process_unique_header_line },
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58
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137
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138 { ngx_string("Keep-Alive"), offsetof(ngx_http_headers_in_t, keep_alive),
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139 ngx_http_process_header_line },
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0
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140
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510
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141 #if (NGX_HTTP_PROXY || NGX_HTTP_REALIP || NGX_HTTP_GEO)
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0
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142 { ngx_string("X-Forwarded-For"),
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58
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143 offsetof(ngx_http_headers_in_t, x_forwarded_for),
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144 ngx_http_process_header_line },
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0
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145 #endif
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28
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146
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122
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147 #if (NGX_HTTP_REALIP)
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148 { ngx_string("X-Real-IP"),
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149 offsetof(ngx_http_headers_in_t, x_real_ip),
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150 ngx_http_process_header_line },
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151 #endif
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152
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38
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153 #if (NGX_HTTP_HEADERS)
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58
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154 { ngx_string("Accept"), offsetof(ngx_http_headers_in_t, accept),
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155 ngx_http_process_header_line },
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156
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38
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157 { ngx_string("Accept-Language"),
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58
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158 offsetof(ngx_http_headers_in_t, accept_language),
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159 ngx_http_process_header_line },
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38
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160 #endif
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161
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186
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162 #if (NGX_HTTP_DAV)
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163 { ngx_string("Depth"), offsetof(ngx_http_headers_in_t, depth),
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164 ngx_http_process_header_line },
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165
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166 { ngx_string("Destination"), offsetof(ngx_http_headers_in_t, destination),
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167 ngx_http_process_header_line },
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230
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168
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276
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169 { ngx_string("Overwrite"), offsetof(ngx_http_headers_in_t, overwrite),
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170 ngx_http_process_header_line },
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171
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230
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172 { ngx_string("Date"), offsetof(ngx_http_headers_in_t, date),
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173 ngx_http_process_header_line },
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186
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174 #endif
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175
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58
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176 { ngx_string("Cookie"), 0, ngx_http_process_cookie },
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177
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178 { ngx_null_string, 0, NULL }
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0
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179 };
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180
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181
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50
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182 void
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183 ngx_http_init_connection(ngx_connection_t *c)
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0
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184 {
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185 ngx_event_t *rev;
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186 ngx_http_log_ctx_t *ctx;
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187
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50
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188 ctx = ngx_palloc(c->pool, sizeof(ngx_http_log_ctx_t));
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189 if (ctx == NULL) {
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0
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190 ngx_http_close_connection(c);
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191 return;
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192 }
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193
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362
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194 ctx->connection = c;
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10
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195 ctx->request = NULL;
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214
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196 ctx->current_request = NULL;
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32
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197
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198 c->log->connection = c->number;
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199 c->log->handler = ngx_http_log_error;
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0
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200 c->log->data = ctx;
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32
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201 c->log->action = "reading client request line";
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202
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0
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203 c->log_error = NGX_ERROR_INFO;
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204
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205 rev = c->read;
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58
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206 rev->handler = ngx_http_init_request;
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118
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207 c->write->handler = ngx_http_empty_handler;
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0
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208
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116
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209 #if (NGX_STAT_STUB)
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502
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210 (void) ngx_atomic_fetch_add(ngx_stat_reading, 1);
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116
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211 #endif
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212
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0
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213 if (rev->ready) {
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214 /* the deferred accept(), rtsig, aio, iocp */
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215
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160
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216 if (ngx_use_accept_mutex) {
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112
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217 ngx_post_event(rev, &ngx_posted_events);
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0
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218 return;
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219 }
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220
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221 ngx_http_init_request(rev);
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222 return;
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223 }
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224
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225 ngx_add_timer(rev, c->listening->post_accept_timeout);
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226
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430
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227 if (ngx_handle_read_event(rev, 0) != NGX_OK) {
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116
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228 #if (NGX_STAT_STUB)
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502
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229 (void) ngx_atomic_fetch_add(ngx_stat_reading, -1);
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116
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230 #endif
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0
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231 ngx_http_close_connection(c);
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232 return;
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233 }
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234 }
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235
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236
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190
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237 static void
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238 ngx_http_init_request(ngx_event_t *rev)
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0
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239 {
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298
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240 ngx_time_t *tp;
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122
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241 ngx_uint_t i;
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242 ngx_connection_t *c;
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243 ngx_http_request_t *r;
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448
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244 struct sockaddr_in *sin;
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245 ngx_http_port_t *port;
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246 ngx_http_in_addr_t *addr;
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122
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247 ngx_http_log_ctx_t *ctx;
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448
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248 ngx_http_addr_conf_t *addr_conf;
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122
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249 ngx_http_connection_t *hc;
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250 ngx_http_core_srv_conf_t *cscf;
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251 ngx_http_core_loc_conf_t *clcf;
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252 ngx_http_core_main_conf_t *cmcf;
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448
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253 #if (NGX_HAVE_INET6)
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254 struct sockaddr_in6 *sin6;
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255 ngx_http_in6_addr_t *addr6;
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256 #endif
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0
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257
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116
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258 #if (NGX_STAT_STUB)
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502
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259 (void) ngx_atomic_fetch_add(ngx_stat_reading, -1);
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116
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260 #endif
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261
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0
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262 c = rev->data;
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263
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264 if (rev->timedout) {
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265 ngx_log_error(NGX_LOG_INFO, c->log, NGX_ETIMEDOUT, "client timed out");
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266
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267 ngx_http_close_connection(c);
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268 return;
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269 }
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270
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496
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271 c->requests++;
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272
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0
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273 hc = c->data;
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274
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116
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275 if (hc == NULL) {
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50
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276 hc = ngx_pcalloc(c->pool, sizeof(ngx_http_connection_t));
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277 if (hc == NULL) {
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0
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278 ngx_http_close_connection(c);
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279 return;
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280 }
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281 }
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282
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283 r = hc->request;
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284
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285 if (r) {
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286 ngx_memzero(r, sizeof(ngx_http_request_t));
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287
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288 r->pipeline = hc->pipeline;
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289
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290 if (hc->nbusy) {
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291 r->header_in = hc->busy[0];
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292 }
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293
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294 } else {
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50
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295 r = ngx_pcalloc(c->pool, sizeof(ngx_http_request_t));
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296 if (r == NULL) {
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0
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297 ngx_http_close_connection(c);
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298 return;
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299 }
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300
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301 hc->request = r;
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302 }
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303
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304 c->data = r;
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305 r->http_connection = hc;
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306
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307 c->sent = 0;
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308 r->signature = NGX_HTTP_MODULE;
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309
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310 /* find the server configuration for the address:port */
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311
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448
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312 port = c->listening->servers;
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313
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362
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314 r->connection = c;
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315
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448
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316 if (port->naddrs > 1) {
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0
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317
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318 /*
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448
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319 * there are several addresses on this port and one of them
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320 * is an "*:port" wildcard so getsockname() in ngx_http_server_addr()
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321 * is required to determine a server address
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0
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322 */
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323
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492
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324 if (ngx_connection_local_sockaddr(c, NULL, 0) != NGX_OK) {
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448
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325 ngx_http_close_connection(c);
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326 return;
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327 }
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328
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329 switch (c->local_sockaddr->sa_family) {
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330
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331 #if (NGX_HAVE_INET6)
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332 case AF_INET6:
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333 sin6 = (struct sockaddr_in6 *) c->local_sockaddr;
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334
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492
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335 addr6 = port->addrs;
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448
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336
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337 /* the last address is "*" */
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338
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339 for (i = 0; i < port->naddrs - 1; i++) {
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340 if (ngx_memcmp(&addr6[i].addr6, &sin6->sin6_addr, 16) == 0) {
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341 break;
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342 }
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343 }
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344
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345 addr_conf = &addr6[i].conf;
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346
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347 break;
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0
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348 #endif
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448
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349
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350 default: /* AF_INET */
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351 sin = (struct sockaddr_in *) c->local_sockaddr;
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352
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353 addr = port->addrs;
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354
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355 /* the last address is "*" */
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|
356
|
|
|
357 for (i = 0; i < port->naddrs - 1; i++) {
|
|
|
358 if (addr[i].addr == sin->sin_addr.s_addr) {
|
|
|
359 break;
|
|
|
360 }
|
|
0
|
361 }
|
|
448
|
362
|
|
|
363 addr_conf = &addr[i].conf;
|
|
|
364
|
|
|
365 break;
|
|
0
|
366 }
|
|
|
367
|
|
|
368 } else {
|
|
448
|
369
|
|
|
370 switch (c->local_sockaddr->sa_family) {
|
|
|
371
|
|
|
372 #if (NGX_HAVE_INET6)
|
|
|
373 case AF_INET6:
|
|
492
|
374 addr6 = port->addrs;
|
|
448
|
375 addr_conf = &addr6[0].conf;
|
|
|
376 break;
|
|
|
377 #endif
|
|
|
378
|
|
|
379 default: /* AF_INET */
|
|
|
380 addr = port->addrs;
|
|
|
381 addr_conf = &addr[0].conf;
|
|
|
382 break;
|
|
|
383 }
|
|
0
|
384 }
|
|
|
385
|
|
478
|
386 r->virtual_names = addr_conf->virtual_names;
|
|
|
387
|
|
0
|
388 /* the default server configuration for the address:port */
|
|
538
|
389 cscf = addr_conf->default_server;
|
|
0
|
390
|
|
|
391 r->main_conf = cscf->ctx->main_conf;
|
|
|
392 r->srv_conf = cscf->ctx->srv_conf;
|
|
|
393 r->loc_conf = cscf->ctx->loc_conf;
|
|
|
394
|
|
58
|
395 rev->handler = ngx_http_process_request_line;
|
|
510
|
396 r->read_event_handler = ngx_http_block_reading;
|
|
0
|
397
|
|
|
398 #if (NGX_HTTP_SSL)
|
|
|
399
|
|
356
|
400 {
|
|
|
401 ngx_http_ssl_srv_conf_t *sscf;
|
|
|
402
|
|
0
|
403 sscf = ngx_http_get_module_srv_conf(r, ngx_http_ssl_module);
|
|
448
|
404 if (sscf->enable || addr_conf->ssl) {
|
|
0
|
405
|
|
|
406 if (c->ssl == NULL) {
|
|
404
|
407
|
|
|
408 c->log->action = "SSL handshaking";
|
|
|
409
|
|
448
|
410 if (addr_conf->ssl && sscf->ssl.ctx == NULL) {
|
|
404
|
411 ngx_log_error(NGX_LOG_ERR, c->log, 0,
|
|
|
412 "no \"ssl_certificate\" is defined "
|
|
|
413 "in server listening on SSL port");
|
|
|
414 ngx_http_close_connection(c);
|
|
|
415 return;
|
|
|
416 }
|
|
|
417
|
|
96
|
418 if (ngx_ssl_create_connection(&sscf->ssl, c, NGX_SSL_BUFFER)
|
|
454
|
419 != NGX_OK)
|
|
0
|
420 {
|
|
|
421 ngx_http_close_connection(c);
|
|
|
422 return;
|
|
|
423 }
|
|
|
424
|
|
58
|
425 rev->handler = ngx_http_ssl_handshake;
|
|
0
|
426 }
|
|
|
427
|
|
62
|
428 r->main_filter_need_in_memory = 1;
|
|
0
|
429 }
|
|
356
|
430 }
|
|
0
|
431
|
|
|
432 #endif
|
|
|
433
|
|
|
434 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
484
|
435 c->log->file = clcf->error_log->file;
|
|
0
|
436 if (!(c->log->log_level & NGX_LOG_DEBUG_CONNECTION)) {
|
|
484
|
437 c->log->log_level = clcf->error_log->log_level;
|
|
0
|
438 }
|
|
|
439
|
|
|
440 if (c->buffer == NULL) {
|
|
|
441 c->buffer = ngx_create_temp_buf(c->pool,
|
|
|
442 cscf->client_header_buffer_size);
|
|
|
443 if (c->buffer == NULL) {
|
|
|
444 ngx_http_close_connection(c);
|
|
|
445 return;
|
|
|
446 }
|
|
|
447 }
|
|
|
448
|
|
|
449 if (r->header_in == NULL) {
|
|
|
450 r->header_in = c->buffer;
|
|
|
451 }
|
|
|
452
|
|
50
|
453 r->pool = ngx_create_pool(cscf->request_pool_size, c->log);
|
|
|
454 if (r->pool == NULL) {
|
|
0
|
455 ngx_http_close_connection(c);
|
|
|
456 return;
|
|
|
457 }
|
|
|
458
|
|
|
459
|
|
|
460 if (ngx_list_init(&r->headers_out.headers, r->pool, 20,
|
|
130
|
461 sizeof(ngx_table_elt_t))
|
|
454
|
462 != NGX_OK)
|
|
0
|
463 {
|
|
496
|
464 ngx_destroy_pool(r->pool);
|
|
|
465 ngx_http_close_connection(c);
|
|
0
|
466 return;
|
|
|
467 }
|
|
|
468
|
|
|
469 r->ctx = ngx_pcalloc(r->pool, sizeof(void *) * ngx_http_max_module);
|
|
|
470 if (r->ctx == NULL) {
|
|
496
|
471 ngx_destroy_pool(r->pool);
|
|
|
472 ngx_http_close_connection(c);
|
|
0
|
473 return;
|
|
|
474 }
|
|
|
475
|
|
122
|
476 cmcf = ngx_http_get_module_main_conf(r, ngx_http_core_module);
|
|
|
477
|
|
|
478 r->variables = ngx_pcalloc(r->pool, cmcf->variables.nelts
|
|
|
479 * sizeof(ngx_http_variable_value_t));
|
|
|
480 if (r->variables == NULL) {
|
|
496
|
481 ngx_destroy_pool(r->pool);
|
|
|
482 ngx_http_close_connection(c);
|
|
122
|
483 return;
|
|
|
484 }
|
|
|
485
|
|
0
|
486 c->single_connection = 1;
|
|
132
|
487 c->destroyed = 0;
|
|
|
488
|
|
102
|
489 r->main = r;
|
|
518
|
490 r->count = 1;
|
|
102
|
491
|
|
298
|
492 tp = ngx_timeofday();
|
|
|
493 r->start_sec = tp->sec;
|
|
|
494 r->start_msec = tp->msec;
|
|
46
|
495
|
|
180
|
496 r->method = NGX_HTTP_UNKNOWN;
|
|
|
497
|
|
0
|
498 r->headers_in.content_length_n = -1;
|
|
|
499 r->headers_in.keep_alive_n = -1;
|
|
|
500 r->headers_out.content_length_n = -1;
|
|
|
501 r->headers_out.last_modified_time = -1;
|
|
|
502
|
|
226
|
503 r->uri_changes = NGX_HTTP_MAX_URI_CHANGES + 1;
|
|
|
504 r->subrequests = NGX_HTTP_MAX_SUBREQUESTS + 1;
|
|
|
505
|
|
0
|
506 r->http_state = NGX_HTTP_READING_REQUEST_STATE;
|
|
|
507
|
|
54
|
508 ctx = c->log->data;
|
|
|
509 ctx->request = r;
|
|
214
|
510 ctx->current_request = r;
|
|
58
|
511 r->log_handler = ngx_http_log_error_handler;
|
|
54
|
512
|
|
0
|
513 #if (NGX_STAT_STUB)
|
|
502
|
514 (void) ngx_atomic_fetch_add(ngx_stat_reading, 1);
|
|
26
|
515 r->stat_reading = 1;
|
|
502
|
516 (void) ngx_atomic_fetch_add(ngx_stat_requests, 1);
|
|
0
|
517 #endif
|
|
|
518
|
|
58
|
519 rev->handler(rev);
|
|
0
|
520 }
|
|
|
521
|
|
|
522
|
|
|
523 #if (NGX_HTTP_SSL)
|
|
|
524
|
|
50
|
525 static void
|
|
|
526 ngx_http_ssl_handshake(ngx_event_t *rev)
|
|
0
|
527 {
|
|
10
|
528 u_char buf[1];
|
|
|
529 ssize_t n;
|
|
0
|
530 ngx_int_t rc;
|
|
|
531 ngx_connection_t *c;
|
|
|
532 ngx_http_request_t *r;
|
|
|
533
|
|
|
534 c = rev->data;
|
|
|
535 r = c->data;
|
|
|
536
|
|
|
537 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, rev->log, 0,
|
|
|
538 "http check ssl handshake");
|
|
|
539
|
|
|
540 if (rev->timedout) {
|
|
54
|
541 ngx_log_error(NGX_LOG_INFO, c->log, NGX_ETIMEDOUT, "client timed out");
|
|
|
542 c->timedout = 1;
|
|
|
543 ngx_http_close_request(r, NGX_HTTP_REQUEST_TIME_OUT);
|
|
0
|
544 return;
|
|
|
545 }
|
|
|
546
|
|
132
|
547 n = recv(c->fd, (char *) buf, 1, MSG_PEEK);
|
|
0
|
548
|
|
|
549 if (n == -1 && ngx_socket_errno == NGX_EAGAIN) {
|
|
364
|
550
|
|
|
551 if (!rev->timer_set) {
|
|
|
552 ngx_add_timer(rev, c->listening->post_accept_timeout);
|
|
|
553 }
|
|
|
554
|
|
430
|
555 if (ngx_handle_read_event(rev, 0) != NGX_OK) {
|
|
364
|
556 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
557 }
|
|
|
558
|
|
0
|
559 return;
|
|
|
560 }
|
|
|
561
|
|
|
562 if (n == 1) {
|
|
584
|
563 if (buf[0] & 0x80 /* SSLv2 */ || buf[0] == 0x16 /* SSLv3/TLSv1 */) {
|
|
0
|
564 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, rev->log, 0,
|
|
10
|
565 "https ssl handshake: 0x%02Xd", buf[0]);
|
|
0
|
566
|
|
|
567 rc = ngx_ssl_handshake(c);
|
|
|
568
|
|
96
|
569 if (rc == NGX_AGAIN) {
|
|
362
|
570
|
|
|
571 if (!rev->timer_set) {
|
|
|
572 ngx_add_timer(rev, c->listening->post_accept_timeout);
|
|
|
573 }
|
|
|
574
|
|
96
|
575 c->ssl->handler = ngx_http_ssl_handshake_handler;
|
|
0
|
576 return;
|
|
|
577 }
|
|
|
578
|
|
96
|
579 ngx_http_ssl_handshake_handler(c);
|
|
|
580
|
|
|
581 return;
|
|
0
|
582
|
|
|
583 } else {
|
|
|
584 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, rev->log, 0,
|
|
|
585 "plain http");
|
|
|
586
|
|
|
587 r->plain_http = 1;
|
|
|
588 }
|
|
|
589 }
|
|
|
590
|
|
404
|
591 c->log->action = "reading client request line";
|
|
|
592
|
|
58
|
593 rev->handler = ngx_http_process_request_line;
|
|
0
|
594 ngx_http_process_request_line(rev);
|
|
|
595 }
|
|
|
596
|
|
96
|
597
|
|
|
598 static void
|
|
|
599 ngx_http_ssl_handshake_handler(ngx_connection_t *c)
|
|
|
600 {
|
|
|
601 ngx_http_request_t *r;
|
|
|
602
|
|
|
603 if (c->ssl->handshaked) {
|
|
|
604
|
|
|
605 /*
|
|
|
606 * The majority of browsers do not send the "close notify" alert.
|
|
|
607 * Among them are MSIE, old Mozilla, Netscape 4, Konqueror,
|
|
|
608 * and Links. And what is more, MSIE ignores the server's alert.
|
|
|
609 *
|
|
|
610 * Opera and recent Mozilla send the alert.
|
|
|
611 */
|
|
|
612
|
|
|
613 c->ssl->no_wait_shutdown = 1;
|
|
|
614
|
|
|
615 c->read->handler = ngx_http_process_request_line;
|
|
|
616 /* STUB: epoll edge */ c->write->handler = ngx_http_empty_handler;
|
|
|
617
|
|
|
618 ngx_http_process_request_line(c->read);
|
|
|
619
|
|
|
620 return;
|
|
|
621 }
|
|
|
622
|
|
|
623 r = c->data;
|
|
|
624
|
|
|
625 ngx_http_close_request(r, NGX_HTTP_BAD_REQUEST);
|
|
|
626
|
|
|
627 return;
|
|
|
628 }
|
|
|
629
|
|
306
|
630 #ifdef SSL_CTRL_SET_TLSEXT_HOSTNAME
|
|
|
631
|
|
|
632 int
|
|
|
633 ngx_http_ssl_servername(ngx_ssl_conn_t *ssl_conn, int *ad, void *arg)
|
|
|
634 {
|
|
400
|
635 size_t len;
|
|
530
|
636 u_char *host;
|
|
306
|
637 const char *servername;
|
|
|
638 ngx_connection_t *c;
|
|
|
639 ngx_http_request_t *r;
|
|
|
640 ngx_http_ssl_srv_conf_t *sscf;
|
|
|
641
|
|
|
642 servername = SSL_get_servername(ssl_conn, TLSEXT_NAMETYPE_host_name);
|
|
|
643
|
|
|
644 if (servername == NULL) {
|
|
|
645 return SSL_TLSEXT_ERR_NOACK;
|
|
|
646 }
|
|
|
647
|
|
|
648 c = ngx_ssl_get_connection(ssl_conn);
|
|
|
649
|
|
|
650 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
|
651 "SSL server name: \"%s\"", servername);
|
|
|
652
|
|
400
|
653 len = ngx_strlen(servername);
|
|
|
654
|
|
|
655 if (len == 0) {
|
|
|
656 return SSL_TLSEXT_ERR_NOACK;
|
|
|
657 }
|
|
|
658
|
|
306
|
659 r = c->data;
|
|
|
660
|
|
530
|
661 host = (u_char *) servername;
|
|
|
662
|
|
|
663 len = ngx_http_validate_host(r, &host, len, 1);
|
|
|
664
|
|
|
665 if (len <= 0) {
|
|
|
666 return SSL_TLSEXT_ERR_NOACK;
|
|
|
667 }
|
|
|
668
|
|
|
669 if (ngx_http_find_virtual_server(r, host, len) != NGX_OK) {
|
|
306
|
670 return SSL_TLSEXT_ERR_NOACK;
|
|
|
671 }
|
|
|
672
|
|
|
673 sscf = ngx_http_get_module_srv_conf(r, ngx_http_ssl_module);
|
|
|
674
|
|
650
|
675 if (sscf->ssl.ctx) {
|
|
|
676 SSL_set_SSL_CTX(ssl_conn, sscf->ssl.ctx);
|
|
|
677
|
|
|
678 /*
|
|
|
679 * SSL_set_SSL_CTX() only changes certs as of 1.0.0d
|
|
|
680 * adjust other things we care about
|
|
|
681 */
|
|
|
682
|
|
|
683 SSL_set_verify(ssl_conn, SSL_CTX_get_verify_mode(sscf->ssl.ctx),
|
|
|
684 SSL_CTX_get_verify_callback(sscf->ssl.ctx));
|
|
|
685
|
|
|
686 SSL_set_verify_depth(ssl_conn, SSL_CTX_get_verify_depth(sscf->ssl.ctx));
|
|
636
|
687
|
|
|
688 #ifdef SSL_CTRL_CLEAR_OPTIONS
|
|
650
|
689 /* only in 0.9.8m+ */
|
|
|
690 SSL_clear_options(ssl_conn, SSL_get_options(ssl_conn) &
|
|
|
691 ~SSL_CTX_get_options(sscf->ssl.ctx));
|
|
636
|
692 #endif
|
|
|
693
|
|
650
|
694 SSL_set_options(ssl_conn, SSL_CTX_get_options(sscf->ssl.ctx));
|
|
|
695 }
|
|
636
|
696
|
|
306
|
697 return SSL_TLSEXT_ERR_OK;
|
|
|
698 }
|
|
|
699
|
|
|
700 #endif
|
|
96
|
701
|
|
0
|
702 #endif
|
|
|
703
|
|
|
704
|
|
50
|
705 static void
|
|
|
706 ngx_http_process_request_line(ngx_event_t *rev)
|
|
0
|
707 {
|
|
530
|
708 u_char *host;
|
|
342
|
709 ssize_t n;
|
|
|
710 ngx_int_t rc, rv;
|
|
|
711 ngx_connection_t *c;
|
|
|
712 ngx_http_request_t *r;
|
|
|
713 ngx_http_core_srv_conf_t *cscf;
|
|
0
|
714
|
|
|
715 c = rev->data;
|
|
|
716 r = c->data;
|
|
|
717
|
|
|
718 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, rev->log, 0,
|
|
|
719 "http process request line");
|
|
|
720
|
|
|
721 if (rev->timedout) {
|
|
54
|
722 ngx_log_error(NGX_LOG_INFO, c->log, NGX_ETIMEDOUT, "client timed out");
|
|
|
723 c->timedout = 1;
|
|
|
724 ngx_http_close_request(r, NGX_HTTP_REQUEST_TIME_OUT);
|
|
0
|
725 return;
|
|
|
726 }
|
|
|
727
|
|
|
728 rc = NGX_AGAIN;
|
|
|
729
|
|
|
730 for ( ;; ) {
|
|
|
731
|
|
|
732 if (rc == NGX_AGAIN) {
|
|
|
733 n = ngx_http_read_request_header(r);
|
|
|
734
|
|
|
735 if (n == NGX_AGAIN || n == NGX_ERROR) {
|
|
|
736 return;
|
|
|
737 }
|
|
|
738 }
|
|
|
739
|
|
|
740 rc = ngx_http_parse_request_line(r, r->header_in);
|
|
|
741
|
|
|
742 if (rc == NGX_OK) {
|
|
|
743
|
|
|
744 /* the request line has been parsed successfully */
|
|
|
745
|
|
10
|
746 r->request_line.len = r->request_end - r->request_start;
|
|
|
747 r->request_line.data = r->request_start;
|
|
|
748
|
|
0
|
749
|
|
|
750 if (r->args_start) {
|
|
|
751 r->uri.len = r->args_start - 1 - r->uri_start;
|
|
|
752 } else {
|
|
|
753 r->uri.len = r->uri_end - r->uri_start;
|
|
|
754 }
|
|
|
755
|
|
18
|
756
|
|
2
|
757 if (r->complex_uri || r->quoted_uri) {
|
|
10
|
758
|
|
382
|
759 r->uri.data = ngx_pnalloc(r->pool, r->uri.len + 1);
|
|
50
|
760 if (r->uri.data == NULL) {
|
|
10
|
761 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
762 return;
|
|
|
763 }
|
|
|
764
|
|
342
|
765 cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
|
|
|
766
|
|
|
767 rc = ngx_http_parse_complex_uri(r, cscf->merge_slashes);
|
|
0
|
768
|
|
54
|
769 if (rc == NGX_HTTP_PARSE_INVALID_REQUEST) {
|
|
|
770 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
|
771 "client sent invalid request");
|
|
|
772 ngx_http_finalize_request(r, NGX_HTTP_BAD_REQUEST);
|
|
0
|
773 return;
|
|
|
774 }
|
|
|
775
|
|
|
776 } else {
|
|
10
|
777 r->uri.data = r->uri_start;
|
|
0
|
778 }
|
|
|
779
|
|
18
|
780
|
|
10
|
781 r->unparsed_uri.len = r->uri_end - r->uri_start;
|
|
|
782 r->unparsed_uri.data = r->uri_start;
|
|
|
783
|
|
578
|
784 r->valid_unparsed_uri = r->space_in_uri ? 0 : 1;
|
|
0
|
785
|
|
58
|
786 r->method_name.len = r->method_end - r->request_start + 1;
|
|
|
787 r->method_name.data = r->request_line.data;
|
|
0
|
788
|
|
10
|
789
|
|
28
|
790 if (r->http_protocol.data) {
|
|
|
791 r->http_protocol.len = r->request_end - r->http_protocol.data;
|
|
|
792 }
|
|
|
793
|
|
|
794
|
|
0
|
795 if (r->uri_ext) {
|
|
|
796 if (r->args_start) {
|
|
|
797 r->exten.len = r->args_start - 1 - r->uri_ext;
|
|
|
798 } else {
|
|
|
799 r->exten.len = r->uri_end - r->uri_ext;
|
|
|
800 }
|
|
|
801
|
|
10
|
802 r->exten.data = r->uri_ext;
|
|
0
|
803 }
|
|
|
804
|
|
10
|
805
|
|
0
|
806 if (r->args_start && r->uri_end > r->args_start) {
|
|
|
807 r->args.len = r->uri_end - r->args_start;
|
|
10
|
808 r->args.data = r->args_start;
|
|
0
|
809 }
|
|
|
810
|
|
508
|
811 #if (NGX_WIN32)
|
|
|
812 {
|
|
|
813 u_char *p;
|
|
|
814
|
|
|
815 p = r->uri.data + r->uri.len - 1;
|
|
|
816
|
|
576
|
817 while (p > r->uri.data) {
|
|
|
818
|
|
|
819 if (*p == ' ') {
|
|
|
820 p--;
|
|
|
821 continue;
|
|
|
822 }
|
|
|
823
|
|
|
824 if (*p == '.') {
|
|
|
825 p--;
|
|
|
826 continue;
|
|
562
|
827 }
|
|
508
|
828
|
|
576
|
829 if (ngx_strncasecmp(p - 6, (u_char *) "::$data", 7) == 0) {
|
|
|
830 p -= 7;
|
|
|
831 continue;
|
|
|
832 }
|
|
|
833
|
|
|
834 break;
|
|
|
835 }
|
|
|
836
|
|
|
837 if (p != r->uri.data + r->uri.len - 1) {
|
|
508
|
838 r->uri.len = p + 1 - r->uri.data;
|
|
|
839 ngx_http_set_exten(r);
|
|
|
840 }
|
|
576
|
841
|
|
508
|
842 }
|
|
|
843 #endif
|
|
10
|
844
|
|
|
845 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
|
846 "http request line: \"%V\"", &r->request_line);
|
|
|
847
|
|
0
|
848 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
10
|
849 "http uri: \"%V\"", &r->uri);
|
|
0
|
850
|
|
|
851 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
10
|
852 "http args: \"%V\"", &r->args);
|
|
0
|
853
|
|
|
854 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
10
|
855 "http exten: \"%V\"", &r->exten);
|
|
|
856
|
|
376
|
857 if (r->host_start && r->host_end) {
|
|
530
|
858
|
|
|
859 host = r->host_start;
|
|
|
860 n = ngx_http_validate_host(r, &host,
|
|
|
861 r->host_end - r->host_start, 0);
|
|
|
862
|
|
|
863 if (n == 0) {
|
|
376
|
864 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
|
865 "client sent invalid host in request line");
|
|
|
866 ngx_http_finalize_request(r, NGX_HTTP_BAD_REQUEST);
|
|
|
867 return;
|
|
|
868 }
|
|
|
869
|
|
530
|
870 if (n < 0) {
|
|
|
871 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
872 return;
|
|
|
873 }
|
|
|
874
|
|
376
|
875 r->headers_in.server.len = n;
|
|
530
|
876 r->headers_in.server.data = host;
|
|
376
|
877 }
|
|
|
878
|
|
0
|
879 if (r->http_version < NGX_HTTP_VERSION_10) {
|
|
376
|
880
|
|
|
881 if (ngx_http_find_virtual_server(r, r->headers_in.server.data,
|
|
|
882 r->headers_in.server.len)
|
|
|
883 == NGX_ERROR)
|
|
|
884 {
|
|
|
885 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
886 return;
|
|
|
887 }
|
|
|
888
|
|
308
|
889 ngx_http_process_request(r);
|
|
0
|
890 return;
|
|
|
891 }
|
|
|
892
|
|
|
893
|
|
|
894 if (ngx_list_init(&r->headers_in.headers, r->pool, 20,
|
|
130
|
895 sizeof(ngx_table_elt_t))
|
|
454
|
896 != NGX_OK)
|
|
0
|
897 {
|
|
|
898 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
899 return;
|
|
|
900 }
|
|
|
901
|
|
|
902
|
|
48
|
903 if (ngx_array_init(&r->headers_in.cookies, r->pool, 2,
|
|
130
|
904 sizeof(ngx_table_elt_t *))
|
|
454
|
905 != NGX_OK)
|
|
0
|
906 {
|
|
|
907 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
908 return;
|
|
|
909 }
|
|
|
910
|
|
32
|
911 c->log->action = "reading client request headers";
|
|
0
|
912
|
|
58
|
913 rev->handler = ngx_http_process_request_headers;
|
|
0
|
914 ngx_http_process_request_headers(rev);
|
|
|
915
|
|
|
916 return;
|
|
54
|
917 }
|
|
|
918
|
|
|
919 if (rc != NGX_AGAIN) {
|
|
0
|
920
|
|
|
921 /* there was error while a request line parsing */
|
|
|
922
|
|
54
|
923 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
|
924 ngx_http_client_errors[rc - NGX_HTTP_CLIENT_ERROR]);
|
|
|
925 ngx_http_finalize_request(r, NGX_HTTP_BAD_REQUEST);
|
|
0
|
926 return;
|
|
|
927 }
|
|
|
928
|
|
|
929 /* NGX_AGAIN: a request line parsing is still incomplete */
|
|
|
930
|
|
|
931 if (r->header_in->pos == r->header_in->end) {
|
|
|
932
|
|
|
933 rv = ngx_http_alloc_large_header_buffer(r, 1);
|
|
|
934
|
|
|
935 if (rv == NGX_ERROR) {
|
|
|
936 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
937 return;
|
|
|
938 }
|
|
|
939
|
|
|
940 if (rv == NGX_DECLINED) {
|
|
54
|
941 r->request_line.len = r->header_in->end - r->request_start;
|
|
|
942 r->request_line.data = r->request_start;
|
|
|
943
|
|
|
944 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
|
945 "client sent too long URI");
|
|
|
946 ngx_http_finalize_request(r, NGX_HTTP_REQUEST_URI_TOO_LARGE);
|
|
0
|
947 return;
|
|
|
948 }
|
|
|
949 }
|
|
|
950 }
|
|
|
951 }
|
|
|
952
|
|
|
953
|
|
50
|
954 static void
|
|
|
955 ngx_http_process_request_headers(ngx_event_t *rev)
|
|
0
|
956 {
|
|
524
|
957 u_char *p;
|
|
|
958 size_t len;
|
|
56
|
959 ssize_t n;
|
|
|
960 ngx_int_t rc, rv;
|
|
58
|
961 ngx_table_elt_t *h;
|
|
56
|
962 ngx_connection_t *c;
|
|
|
963 ngx_http_header_t *hh;
|
|
|
964 ngx_http_request_t *r;
|
|
60
|
965 ngx_http_core_srv_conf_t *cscf;
|
|
56
|
966 ngx_http_core_main_conf_t *cmcf;
|
|
0
|
967
|
|
|
968 c = rev->data;
|
|
|
969 r = c->data;
|
|
|
970
|
|
|
971 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, rev->log, 0,
|
|
|
972 "http process request header line");
|
|
|
973
|
|
|
974 if (rev->timedout) {
|
|
54
|
975 ngx_log_error(NGX_LOG_INFO, c->log, NGX_ETIMEDOUT, "client timed out");
|
|
|
976 c->timedout = 1;
|
|
|
977 ngx_http_close_request(r, NGX_HTTP_REQUEST_TIME_OUT);
|
|
0
|
978 return;
|
|
|
979 }
|
|
|
980
|
|
56
|
981 cmcf = ngx_http_get_module_main_conf(r, ngx_http_core_module);
|
|
60
|
982 cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
|
|
56
|
983
|
|
0
|
984 rc = NGX_AGAIN;
|
|
|
985
|
|
|
986 for ( ;; ) {
|
|
|
987
|
|
|
988 if (rc == NGX_AGAIN) {
|
|
|
989
|
|
|
990 if (r->header_in->pos == r->header_in->end) {
|
|
|
991
|
|
|
992 rv = ngx_http_alloc_large_header_buffer(r, 0);
|
|
|
993
|
|
|
994 if (rv == NGX_ERROR) {
|
|
|
995 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
996 return;
|
|
|
997 }
|
|
|
998
|
|
|
999 if (rv == NGX_DECLINED) {
|
|
524
|
1000 p = r->header_name_start;
|
|
|
1001
|
|
612
|
1002 r->lingering_close = 1;
|
|
|
1003
|
|
540
|
1004 if (p == NULL) {
|
|
|
1005 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
|
1006 "client sent too large request");
|
|
612
|
1007 ngx_http_finalize_request(r,
|
|
|
1008 NGX_HTTP_REQUEST_HEADER_TOO_LARGE);
|
|
540
|
1009 return;
|
|
|
1010 }
|
|
|
1011
|
|
|
1012 len = r->header_in->end - p;
|
|
|
1013
|
|
524
|
1014 if (len > NGX_MAX_ERROR_STR - 300) {
|
|
|
1015 len = NGX_MAX_ERROR_STR - 300;
|
|
|
1016 p[len++] = '.'; p[len++] = '.'; p[len++] = '.';
|
|
80
|
1017 }
|
|
|
1018
|
|
54
|
1019 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
524
|
1020 "client sent too long header line: \"%*s\"",
|
|
|
1021 len, r->header_name_start);
|
|
612
|
1022
|
|
|
1023 ngx_http_finalize_request(r,
|
|
|
1024 NGX_HTTP_REQUEST_HEADER_TOO_LARGE);
|
|
0
|
1025 return;
|
|
|
1026 }
|
|
|
1027 }
|
|
|
1028
|
|
|
1029 n = ngx_http_read_request_header(r);
|
|
|
1030
|
|
|
1031 if (n == NGX_AGAIN || n == NGX_ERROR) {
|
|
|
1032 return;
|
|
|
1033 }
|
|
|
1034 }
|
|
|
1035
|
|
412
|
1036 rc = ngx_http_parse_header_line(r, r->header_in,
|
|
|
1037 cscf->underscores_in_headers);
|
|
0
|
1038
|
|
|
1039 if (rc == NGX_OK) {
|
|
|
1040
|
|
60
|
1041 if (r->invalid_header && cscf->ignore_invalid_headers) {
|
|
52
|
1042
|
|
|
1043 /* there was error while a header line parsing */
|
|
|
1044
|
|
54
|
1045 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
524
|
1046 "client sent invalid header line: \"%*s\"",
|
|
|
1047 r->header_end - r->header_name_start,
|
|
|
1048 r->header_name_start);
|
|
52
|
1049 continue;
|
|
|
1050 }
|
|
|
1051
|
|
0
|
1052 /* a header line has been parsed successfully */
|
|
|
1053
|
|
50
|
1054 h = ngx_list_push(&r->headers_in.headers);
|
|
|
1055 if (h == NULL) {
|
|
0
|
1056 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
1057 return;
|
|
|
1058 }
|
|
|
1059
|
|
56
|
1060 h->hash = r->header_hash;
|
|
|
1061
|
|
0
|
1062 h->key.len = r->header_name_end - r->header_name_start;
|
|
|
1063 h->key.data = r->header_name_start;
|
|
|
1064 h->key.data[h->key.len] = '\0';
|
|
|
1065
|
|
|
1066 h->value.len = r->header_end - r->header_start;
|
|
|
1067 h->value.data = r->header_start;
|
|
|
1068 h->value.data[h->value.len] = '\0';
|
|
|
1069
|
|
382
|
1070 h->lowcase_key = ngx_pnalloc(r->pool, h->key.len);
|
|
198
|
1071 if (h->lowcase_key == NULL) {
|
|
|
1072 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
1073 return;
|
|
|
1074 }
|
|
|
1075
|
|
|
1076 if (h->key.len == r->lowcase_index) {
|
|
|
1077 ngx_memcpy(h->lowcase_key, r->lowcase_header, h->key.len);
|
|
|
1078
|
|
|
1079 } else {
|
|
392
|
1080 ngx_strlow(h->lowcase_key, h->key.data, h->key.len);
|
|
0
|
1081 }
|
|
|
1082
|
|
198
|
1083 hh = ngx_hash_find(&cmcf->headers_in_hash, h->hash,
|
|
|
1084 h->lowcase_key, h->key.len);
|
|
|
1085
|
|
|
1086 if (hh && hh->handler(r, h, hh->offset) != NGX_OK) {
|
|
|
1087 return;
|
|
|
1088 }
|
|
|
1089
|
|
0
|
1090 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
10
|
1091 "http header: \"%V: %V\"",
|
|
|
1092 &h->key, &h->value);
|
|
0
|
1093
|
|
|
1094 continue;
|
|
54
|
1095 }
|
|
|
1096
|
|
|
1097 if (rc == NGX_HTTP_PARSE_HEADER_DONE) {
|
|
0
|
1098
|
|
|
1099 /* a whole header has been parsed successfully */
|
|
|
1100
|
|
|
1101 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1102 "http header done");
|
|
|
1103
|
|
24
|
1104 r->request_length += r->header_in->pos - r->header_in->start;
|
|
|
1105
|
|
0
|
1106 r->http_state = NGX_HTTP_PROCESS_REQUEST_STATE;
|
|
|
1107
|
|
|
1108 rc = ngx_http_process_request_header(r);
|
|
|
1109
|
|
|
1110 if (rc != NGX_OK) {
|
|
|
1111 return;
|
|
|
1112 }
|
|
|
1113
|
|
308
|
1114 ngx_http_process_request(r);
|
|
86
|
1115
|
|
0
|
1116 return;
|
|
54
|
1117 }
|
|
|
1118
|
|
|
1119 if (rc == NGX_AGAIN) {
|
|
|
1120
|
|
|
1121 /* a header line parsing is still not complete */
|
|
|
1122
|
|
|
1123 continue;
|
|
0
|
1124 }
|
|
|
1125
|
|
54
|
1126 /* rc == NGX_HTTP_PARSE_INVALID_HEADER: "\r" is not followed by "\n" */
|
|
|
1127
|
|
|
1128 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
524
|
1129 "client sent invalid header line: \"%*s\\r...\"",
|
|
|
1130 r->header_end - r->header_name_start,
|
|
|
1131 r->header_name_start);
|
|
330
|
1132 ngx_http_finalize_request(r, NGX_HTTP_BAD_REQUEST);
|
|
54
|
1133 return;
|
|
0
|
1134 }
|
|
|
1135 }
|
|
|
1136
|
|
|
1137
|
|
50
|
1138 static ssize_t
|
|
|
1139 ngx_http_read_request_header(ngx_http_request_t *r)
|
|
0
|
1140 {
|
|
|
1141 ssize_t n;
|
|
|
1142 ngx_event_t *rev;
|
|
230
|
1143 ngx_connection_t *c;
|
|
0
|
1144 ngx_http_core_srv_conf_t *cscf;
|
|
|
1145
|
|
230
|
1146 c = r->connection;
|
|
|
1147 rev = c->read;
|
|
0
|
1148
|
|
|
1149 n = r->header_in->last - r->header_in->pos;
|
|
|
1150
|
|
|
1151 if (n > 0) {
|
|
|
1152 return n;
|
|
|
1153 }
|
|
|
1154
|
|
72
|
1155 if (rev->ready) {
|
|
230
|
1156 n = c->recv(c, r->header_in->last,
|
|
|
1157 r->header_in->end - r->header_in->last);
|
|
72
|
1158 } else {
|
|
|
1159 n = NGX_AGAIN;
|
|
0
|
1160 }
|
|
|
1161
|
|
|
1162 if (n == NGX_AGAIN) {
|
|
364
|
1163 if (!rev->timer_set) {
|
|
0
|
1164 cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
|
|
|
1165 ngx_add_timer(rev, cscf->client_header_timeout);
|
|
|
1166 }
|
|
|
1167
|
|
430
|
1168 if (ngx_handle_read_event(rev, 0) != NGX_OK) {
|
|
0
|
1169 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
1170 return NGX_ERROR;
|
|
|
1171 }
|
|
|
1172
|
|
|
1173 return NGX_AGAIN;
|
|
|
1174 }
|
|
|
1175
|
|
|
1176 if (n == 0) {
|
|
230
|
1177 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
0
|
1178 "client closed prematurely connection");
|
|
|
1179 }
|
|
|
1180
|
|
|
1181 if (n == 0 || n == NGX_ERROR) {
|
|
272
|
1182 c->error = 1;
|
|
|
1183 c->log->action = "reading client request headers";
|
|
|
1184
|
|
|
1185 ngx_http_finalize_request(r, NGX_HTTP_BAD_REQUEST);
|
|
0
|
1186 return NGX_ERROR;
|
|
|
1187 }
|
|
|
1188
|
|
|
1189 r->header_in->last += n;
|
|
|
1190
|
|
|
1191 return n;
|
|
|
1192 }
|
|
|
1193
|
|
|
1194
|
|
50
|
1195 static ngx_int_t
|
|
|
1196 ngx_http_alloc_large_header_buffer(ngx_http_request_t *r,
|
|
|
1197 ngx_uint_t request_line)
|
|
0
|
1198 {
|
|
|
1199 u_char *old, *new;
|
|
|
1200 ngx_buf_t *b;
|
|
|
1201 ngx_http_connection_t *hc;
|
|
|
1202 ngx_http_core_srv_conf_t *cscf;
|
|
|
1203
|
|
|
1204 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1205 "http alloc large header buffer");
|
|
|
1206
|
|
|
1207 if (request_line && r->state == 0) {
|
|
|
1208
|
|
|
1209 /* the client fills up the buffer with "\r\n" */
|
|
|
1210
|
|
24
|
1211 r->request_length += r->header_in->end - r->header_in->start;
|
|
|
1212
|
|
0
|
1213 r->header_in->pos = r->header_in->start;
|
|
|
1214 r->header_in->last = r->header_in->start;
|
|
|
1215
|
|
|
1216 return NGX_OK;
|
|
|
1217 }
|
|
|
1218
|
|
|
1219 old = request_line ? r->request_start : r->header_name_start;
|
|
|
1220
|
|
|
1221 cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
|
|
|
1222
|
|
|
1223 if (r->state != 0
|
|
|
1224 && (size_t) (r->header_in->pos - old)
|
|
|
1225 >= cscf->large_client_header_buffers.size)
|
|
|
1226 {
|
|
|
1227 return NGX_DECLINED;
|
|
|
1228 }
|
|
|
1229
|
|
|
1230 hc = r->http_connection;
|
|
|
1231
|
|
|
1232 if (hc->nfree) {
|
|
|
1233 b = hc->free[--hc->nfree];
|
|
|
1234
|
|
|
1235 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
10
|
1236 "http large header free: %p %uz",
|
|
0
|
1237 b->pos, b->end - b->last);
|
|
|
1238
|
|
|
1239 } else if (hc->nbusy < cscf->large_client_header_buffers.num) {
|
|
|
1240
|
|
|
1241 if (hc->busy == NULL) {
|
|
|
1242 hc->busy = ngx_palloc(r->connection->pool,
|
|
|
1243 cscf->large_client_header_buffers.num * sizeof(ngx_buf_t *));
|
|
|
1244 if (hc->busy == NULL) {
|
|
|
1245 return NGX_ERROR;
|
|
|
1246 }
|
|
|
1247 }
|
|
|
1248
|
|
|
1249 b = ngx_create_temp_buf(r->connection->pool,
|
|
|
1250 cscf->large_client_header_buffers.size);
|
|
|
1251 if (b == NULL) {
|
|
|
1252 return NGX_ERROR;
|
|
|
1253 }
|
|
|
1254
|
|
|
1255 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
10
|
1256 "http large header alloc: %p %uz",
|
|
0
|
1257 b->pos, b->end - b->last);
|
|
|
1258
|
|
|
1259 } else {
|
|
|
1260 return NGX_DECLINED;
|
|
|
1261 }
|
|
|
1262
|
|
|
1263 hc->busy[hc->nbusy++] = b;
|
|
|
1264
|
|
|
1265 if (r->state == 0) {
|
|
|
1266 /*
|
|
|
1267 * r->state == 0 means that a header line was parsed successfully
|
|
|
1268 * and we do not need to copy incomplete header line and
|
|
|
1269 * to relocate the parser header pointers
|
|
|
1270 */
|
|
|
1271
|
|
24
|
1272 r->request_length += r->header_in->end - r->header_in->start;
|
|
|
1273
|
|
0
|
1274 r->header_in = b;
|
|
|
1275
|
|
|
1276 return NGX_OK;
|
|
|
1277 }
|
|
|
1278
|
|
|
1279 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1280 "http large header copy: %d", r->header_in->pos - old);
|
|
|
1281
|
|
24
|
1282 r->request_length += old - r->header_in->start;
|
|
|
1283
|
|
0
|
1284 new = b->start;
|
|
|
1285
|
|
|
1286 ngx_memcpy(new, old, r->header_in->pos - old);
|
|
|
1287
|
|
|
1288 b->pos = new + (r->header_in->pos - old);
|
|
|
1289 b->last = new + (r->header_in->pos - old);
|
|
|
1290
|
|
|
1291 if (request_line) {
|
|
|
1292 r->request_start = new;
|
|
|
1293
|
|
|
1294 if (r->request_end) {
|
|
|
1295 r->request_end = new + (r->request_end - old);
|
|
|
1296 }
|
|
|
1297
|
|
|
1298 r->method_end = new + (r->method_end - old);
|
|
|
1299
|
|
|
1300 r->uri_start = new + (r->uri_start - old);
|
|
|
1301 r->uri_end = new + (r->uri_end - old);
|
|
|
1302
|
|
|
1303 if (r->schema_start) {
|
|
|
1304 r->schema_start = new + (r->schema_start - old);
|
|
|
1305 r->schema_end = new + (r->schema_end - old);
|
|
|
1306 }
|
|
|
1307
|
|
|
1308 if (r->host_start) {
|
|
|
1309 r->host_start = new + (r->host_start - old);
|
|
270
|
1310 if (r->host_end) {
|
|
|
1311 r->host_end = new + (r->host_end - old);
|
|
|
1312 }
|
|
0
|
1313 }
|
|
|
1314
|
|
|
1315 if (r->port_start) {
|
|
|
1316 r->port_start = new + (r->port_start - old);
|
|
|
1317 r->port_end = new + (r->port_end - old);
|
|
|
1318 }
|
|
|
1319
|
|
|
1320 if (r->uri_ext) {
|
|
|
1321 r->uri_ext = new + (r->uri_ext - old);
|
|
|
1322 }
|
|
|
1323
|
|
|
1324 if (r->args_start) {
|
|
|
1325 r->args_start = new + (r->args_start - old);
|
|
|
1326 }
|
|
|
1327
|
|
354
|
1328 if (r->http_protocol.data) {
|
|
|
1329 r->http_protocol.data = new + (r->http_protocol.data - old);
|
|
|
1330 }
|
|
|
1331
|
|
0
|
1332 } else {
|
|
|
1333 r->header_name_start = new;
|
|
|
1334 r->header_name_end = new + (r->header_name_end - old);
|
|
|
1335 r->header_start = new + (r->header_start - old);
|
|
|
1336 r->header_end = new + (r->header_end - old);
|
|
|
1337 }
|
|
|
1338
|
|
|
1339 r->header_in = b;
|
|
|
1340
|
|
|
1341 return NGX_OK;
|
|
|
1342 }
|
|
|
1343
|
|
|
1344
|
|
50
|
1345 static ngx_int_t
|
|
58
|
1346 ngx_http_process_header_line(ngx_http_request_t *r, ngx_table_elt_t *h,
|
|
|
1347 ngx_uint_t offset)
|
|
|
1348 {
|
|
|
1349 ngx_table_elt_t **ph;
|
|
|
1350
|
|
|
1351 ph = (ngx_table_elt_t **) ((char *) &r->headers_in + offset);
|
|
|
1352
|
|
|
1353 if (*ph == NULL) {
|
|
|
1354 *ph = h;
|
|
|
1355 }
|
|
|
1356
|
|
|
1357 return NGX_OK;
|
|
|
1358 }
|
|
|
1359
|
|
|
1360
|
|
|
1361 static ngx_int_t
|
|
72
|
1362 ngx_http_process_unique_header_line(ngx_http_request_t *r, ngx_table_elt_t *h,
|
|
|
1363 ngx_uint_t offset)
|
|
|
1364 {
|
|
|
1365 ngx_table_elt_t **ph;
|
|
|
1366
|
|
|
1367 ph = (ngx_table_elt_t **) ((char *) &r->headers_in + offset);
|
|
|
1368
|
|
|
1369 if (*ph == NULL) {
|
|
|
1370 *ph = h;
|
|
|
1371 return NGX_OK;
|
|
|
1372 }
|
|
|
1373
|
|
|
1374 ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
|
|
230
|
1375 "client sent duplicate header line: \"%V: %V\", "
|
|
|
1376 "previous value: \"%V: %V\"",
|
|
|
1377 &h->key, &h->value, &(*ph)->key, &(*ph)->value);
|
|
72
|
1378
|
|
|
1379 ngx_http_finalize_request(r, NGX_HTTP_BAD_REQUEST);
|
|
|
1380
|
|
|
1381 return NGX_ERROR;
|
|
|
1382 }
|
|
|
1383
|
|
|
1384
|
|
|
1385 static ngx_int_t
|
|
376
|
1386 ngx_http_process_host(ngx_http_request_t *r, ngx_table_elt_t *h,
|
|
|
1387 ngx_uint_t offset)
|
|
|
1388 {
|
|
530
|
1389 u_char *host;
|
|
|
1390 ssize_t len;
|
|
376
|
1391
|
|
|
1392 if (r->headers_in.host == NULL) {
|
|
|
1393 r->headers_in.host = h;
|
|
|
1394 }
|
|
|
1395
|
|
530
|
1396 host = h->value.data;
|
|
|
1397 len = ngx_http_validate_host(r, &host, h->value.len, 0);
|
|
|
1398
|
|
|
1399 if (len == 0) {
|
|
376
|
1400 ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
|
|
|
1401 "client sent invalid host header");
|
|
|
1402 ngx_http_finalize_request(r, NGX_HTTP_BAD_REQUEST);
|
|
|
1403 return NGX_ERROR;
|
|
|
1404 }
|
|
|
1405
|
|
530
|
1406 if (len < 0) {
|
|
|
1407 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
1408 return NGX_ERROR;
|
|
|
1409 }
|
|
|
1410
|
|
376
|
1411 if (r->headers_in.server.len) {
|
|
|
1412 return NGX_OK;
|
|
|
1413 }
|
|
|
1414
|
|
|
1415 r->headers_in.server.len = len;
|
|
530
|
1416 r->headers_in.server.data = host;
|
|
376
|
1417
|
|
|
1418 return NGX_OK;
|
|
|
1419 }
|
|
|
1420
|
|
|
1421
|
|
|
1422 static ngx_int_t
|
|
336
|
1423 ngx_http_process_connection(ngx_http_request_t *r, ngx_table_elt_t *h,
|
|
|
1424 ngx_uint_t offset)
|
|
|
1425 {
|
|
340
|
1426 if (ngx_strcasestrn(h->value.data, "close", 5 - 1)) {
|
|
336
|
1427 r->headers_in.connection_type = NGX_HTTP_CONNECTION_CLOSE;
|
|
|
1428
|
|
340
|
1429 } else if (ngx_strcasestrn(h->value.data, "keep-alive", 10 - 1)) {
|
|
336
|
1430 r->headers_in.connection_type = NGX_HTTP_CONNECTION_KEEP_ALIVE;
|
|
|
1431 }
|
|
|
1432
|
|
|
1433 return NGX_OK;
|
|
|
1434 }
|
|
|
1435
|
|
|
1436
|
|
|
1437 static ngx_int_t
|
|
376
|
1438 ngx_http_process_user_agent(ngx_http_request_t *r, ngx_table_elt_t *h,
|
|
|
1439 ngx_uint_t offset)
|
|
|
1440 {
|
|
400
|
1441 u_char *user_agent, *msie;
|
|
376
|
1442
|
|
|
1443 if (r->headers_in.user_agent) {
|
|
|
1444 return NGX_OK;
|
|
|
1445 }
|
|
|
1446
|
|
|
1447 r->headers_in.user_agent = h;
|
|
|
1448
|
|
|
1449 /* check some widespread browsers while the header is in CPU cache */
|
|
|
1450
|
|
|
1451 user_agent = h->value.data;
|
|
|
1452
|
|
400
|
1453 msie = ngx_strstrn(user_agent, "MSIE ", 5 - 1);
|
|
|
1454
|
|
|
1455 if (msie && msie + 7 < user_agent + h->value.len) {
|
|
376
|
1456
|
|
|
1457 r->headers_in.msie = 1;
|
|
|
1458
|
|
400
|
1459 if (msie[6] == '.') {
|
|
|
1460
|
|
|
1461 switch (msie[5]) {
|
|
|
1462 case '4':
|
|
|
1463 case '5':
|
|
518
|
1464 r->headers_in.msie6 = 1;
|
|
|
1465 break;
|
|
400
|
1466 case '6':
|
|
518
|
1467 if (ngx_strstrn(msie + 8, "SV1", 3 - 1) == NULL) {
|
|
|
1468 r->headers_in.msie6 = 1;
|
|
|
1469 }
|
|
|
1470 break;
|
|
400
|
1471 }
|
|
376
|
1472 }
|
|
|
1473
|
|
|
1474 #if 0
|
|
|
1475 /* MSIE ignores the SSL "close notify" alert */
|
|
|
1476 if (c->ssl) {
|
|
|
1477 c->ssl->no_send_shutdown = 1;
|
|
|
1478 }
|
|
|
1479 #endif
|
|
|
1480 }
|
|
|
1481
|
|
|
1482 if (ngx_strstrn(user_agent, "Opera", 5 - 1)) {
|
|
|
1483 r->headers_in.opera = 1;
|
|
|
1484 r->headers_in.msie = 0;
|
|
400
|
1485 r->headers_in.msie6 = 0;
|
|
376
|
1486 }
|
|
|
1487
|
|
|
1488 if (!r->headers_in.msie && !r->headers_in.opera) {
|
|
|
1489
|
|
|
1490 if (ngx_strstrn(user_agent, "Gecko/", 6 - 1)) {
|
|
|
1491 r->headers_in.gecko = 1;
|
|
|
1492
|
|
546
|
1493 } else if (ngx_strstrn(user_agent, "Chrome/", 7 - 1)) {
|
|
|
1494 r->headers_in.chrome = 1;
|
|
|
1495
|
|
562
|
1496 } else if (ngx_strstrn(user_agent, "Safari/", 7 - 1)) {
|
|
|
1497 r->headers_in.safari = 1;
|
|
|
1498
|
|
376
|
1499 } else if (ngx_strstrn(user_agent, "Konqueror", 9 - 1)) {
|
|
|
1500 r->headers_in.konqueror = 1;
|
|
|
1501 }
|
|
|
1502 }
|
|
|
1503
|
|
|
1504 return NGX_OK;
|
|
|
1505 }
|
|
|
1506
|
|
|
1507
|
|
|
1508 static ngx_int_t
|
|
58
|
1509 ngx_http_process_cookie(ngx_http_request_t *r, ngx_table_elt_t *h,
|
|
|
1510 ngx_uint_t offset)
|
|
|
1511 {
|
|
|
1512 ngx_table_elt_t **cookie;
|
|
|
1513
|
|
|
1514 cookie = ngx_array_push(&r->headers_in.cookies);
|
|
72
|
1515 if (cookie) {
|
|
|
1516 *cookie = h;
|
|
|
1517 return NGX_OK;
|
|
58
|
1518 }
|
|
|
1519
|
|
72
|
1520 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
1521
|
|
|
1522 return NGX_ERROR;
|
|
58
|
1523 }
|
|
|
1524
|
|
|
1525
|
|
|
1526 static ngx_int_t
|
|
50
|
1527 ngx_http_process_request_header(ngx_http_request_t *r)
|
|
0
|
1528 {
|
|
376
|
1529 if (ngx_http_find_virtual_server(r, r->headers_in.server.data,
|
|
|
1530 r->headers_in.server.len)
|
|
|
1531 == NGX_ERROR)
|
|
|
1532 {
|
|
|
1533 ngx_http_finalize_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
1534 return NGX_ERROR;
|
|
|
1535 }
|
|
|
1536
|
|
|
1537 if (r->headers_in.host == NULL && r->http_version > NGX_HTTP_VERSION_10) {
|
|
|
1538 ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
|
|
|
1539 "client sent HTTP/1.1 request without \"Host\" header");
|
|
|
1540 ngx_http_finalize_request(r, NGX_HTTP_BAD_REQUEST);
|
|
|
1541 return NGX_ERROR;
|
|
0
|
1542 }
|
|
|
1543
|
|
|
1544 if (r->headers_in.content_length) {
|
|
|
1545 r->headers_in.content_length_n =
|
|
212
|
1546 ngx_atoof(r->headers_in.content_length->value.data,
|
|
0
|
1547 r->headers_in.content_length->value.len);
|
|
|
1548
|
|
|
1549 if (r->headers_in.content_length_n == NGX_ERROR) {
|
|
54
|
1550 ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
|
|
|
1551 "client sent invalid \"Content-Length\" header");
|
|
130
|
1552 ngx_http_finalize_request(r, NGX_HTTP_LENGTH_REQUIRED);
|
|
54
|
1553 return NGX_ERROR;
|
|
0
|
1554 }
|
|
|
1555 }
|
|
|
1556
|
|
426
|
1557 if (r->method & NGX_HTTP_PUT && r->headers_in.content_length_n == -1) {
|
|
54
|
1558 ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
|
|
362
|
1559 "client sent %V method without \"Content-Length\" header",
|
|
|
1560 &r->method_name);
|
|
130
|
1561 ngx_http_finalize_request(r, NGX_HTTP_LENGTH_REQUIRED);
|
|
|
1562 return NGX_ERROR;
|
|
|
1563 }
|
|
|
1564
|
|
336
|
1565 if (r->method & NGX_HTTP_TRACE) {
|
|
294
|
1566 ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
|
|
|
1567 "client sent TRACE method");
|
|
|
1568 ngx_http_finalize_request(r, NGX_HTTP_NOT_ALLOWED);
|
|
|
1569 return NGX_ERROR;
|
|
|
1570 }
|
|
|
1571
|
|
130
|
1572 if (r->headers_in.transfer_encoding
|
|
340
|
1573 && ngx_strcasestrn(r->headers_in.transfer_encoding->value.data,
|
|
|
1574 "chunked", 7 - 1))
|
|
130
|
1575 {
|
|
|
1576 ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
|
|
|
1577 "client sent \"Transfer-Encoding: chunked\" header");
|
|
|
1578 ngx_http_finalize_request(r, NGX_HTTP_LENGTH_REQUIRED);
|
|
54
|
1579 return NGX_ERROR;
|
|
0
|
1580 }
|
|
|
1581
|
|
336
|
1582 if (r->headers_in.connection_type == NGX_HTTP_CONNECTION_KEEP_ALIVE) {
|
|
|
1583 if (r->headers_in.keep_alive) {
|
|
|
1584 r->headers_in.keep_alive_n =
|
|
|
1585 ngx_atotm(r->headers_in.keep_alive->value.data,
|
|
|
1586 r->headers_in.keep_alive->value.len);
|
|
0
|
1587 }
|
|
|
1588 }
|
|
|
1589
|
|
308
|
1590 return NGX_OK;
|
|
|
1591 }
|
|
|
1592
|
|
|
1593
|
|
|
1594 static void
|
|
|
1595 ngx_http_process_request(ngx_http_request_t *r)
|
|
|
1596 {
|
|
356
|
1597 ngx_connection_t *c;
|
|
308
|
1598
|
|
|
1599 c = r->connection;
|
|
|
1600
|
|
354
|
1601 if (r->plain_http) {
|
|
|
1602 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
|
1603 "client sent plain HTTP request to HTTPS port");
|
|
|
1604 ngx_http_finalize_request(r, NGX_HTTP_TO_HTTPS);
|
|
|
1605 return;
|
|
|
1606 }
|
|
|
1607
|
|
308
|
1608 #if (NGX_HTTP_SSL)
|
|
|
1609
|
|
|
1610 if (c->ssl) {
|
|
356
|
1611 long rc;
|
|
372
|
1612 X509 *cert;
|
|
356
|
1613 ngx_http_ssl_srv_conf_t *sscf;
|
|
|
1614
|
|
218
|
1615 sscf = ngx_http_get_module_srv_conf(r, ngx_http_ssl_module);
|
|
|
1616
|
|
510
|
1617 if (sscf->verify) {
|
|
308
|
1618 rc = SSL_get_verify_result(c->ssl->connection);
|
|
218
|
1619
|
|
|
1620 if (rc != X509_V_OK) {
|
|
308
|
1621 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
220
|
1622 "client SSL certificate verify error: (%l:%s)",
|
|
218
|
1623 rc, X509_verify_cert_error_string(rc));
|
|
366
|
1624
|
|
|
1625 ngx_ssl_remove_cached_session(sscf->ssl.ctx,
|
|
|
1626 (SSL_get0_session(c->ssl->connection)));
|
|
|
1627
|
|
218
|
1628 ngx_http_finalize_request(r, NGX_HTTPS_CERT_ERROR);
|
|
308
|
1629 return;
|
|
218
|
1630 }
|
|
|
1631
|
|
510
|
1632 if (sscf->verify == 1) {
|
|
|
1633 cert = SSL_get_peer_certificate(c->ssl->connection);
|
|
|
1634
|
|
|
1635 if (cert == NULL) {
|
|
|
1636 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
|
1637 "client sent no required SSL certificate");
|
|
|
1638
|
|
|
1639 ngx_ssl_remove_cached_session(sscf->ssl.ctx,
|
|
366
|
1640 (SSL_get0_session(c->ssl->connection)));
|
|
|
1641
|
|
510
|
1642 ngx_http_finalize_request(r, NGX_HTTPS_NO_CERT);
|
|
|
1643 return;
|
|
|
1644 }
|
|
|
1645
|
|
|
1646 X509_free(cert);
|
|
218
|
1647 }
|
|
|
1648 }
|
|
|
1649 }
|
|
|
1650
|
|
|
1651 #endif
|
|
|
1652
|
|
308
|
1653 if (c->read->timer_set) {
|
|
|
1654 ngx_del_timer(c->read);
|
|
|
1655 }
|
|
|
1656
|
|
|
1657 #if (NGX_STAT_STUB)
|
|
502
|
1658 (void) ngx_atomic_fetch_add(ngx_stat_reading, -1);
|
|
308
|
1659 r->stat_reading = 0;
|
|
502
|
1660 (void) ngx_atomic_fetch_add(ngx_stat_writing, 1);
|
|
308
|
1661 r->stat_writing = 1;
|
|
|
1662 #endif
|
|
|
1663
|
|
|
1664 c->read->handler = ngx_http_request_handler;
|
|
|
1665 c->write->handler = ngx_http_request_handler;
|
|
326
|
1666 r->read_event_handler = ngx_http_block_reading;
|
|
308
|
1667
|
|
|
1668 ngx_http_handler(r);
|
|
|
1669
|
|
426
|
1670 ngx_http_run_posted_requests(c);
|
|
0
|
1671 }
|
|
|
1672
|
|
|
1673
|
|
376
|
1674 static ssize_t
|
|
530
|
1675 ngx_http_validate_host(ngx_http_request_t *r, u_char **host, size_t len,
|
|
|
1676 ngx_uint_t alloc)
|
|
26
|
1677 {
|
|
650
|
1678 u_char *h, ch;
|
|
|
1679 size_t i, dot_pos, host_len;
|
|
|
1680
|
|
|
1681 enum {
|
|
|
1682 sw_usual = 0,
|
|
|
1683 sw_literal,
|
|
|
1684 sw_rest
|
|
|
1685 } state;
|
|
|
1686
|
|
|
1687 dot_pos = len;
|
|
|
1688 host_len = len;
|
|
|
1689
|
|
530
|
1690 h = *host;
|
|
650
|
1691
|
|
|
1692 state = sw_usual;
|
|
376
|
1693
|
|
|
1694 for (i = 0; i < len; i++) {
|
|
530
|
1695 ch = h[i];
|
|
376
|
1696
|
|
650
|
1697 switch (ch) {
|
|
|
1698
|
|
|
1699 case '.':
|
|
|
1700 if (dot_pos == i - 1) {
|
|
530
|
1701 return 0;
|
|
376
|
1702 }
|
|
650
|
1703 dot_pos = i;
|
|
|
1704 break;
|
|
|
1705
|
|
|
1706 case ':':
|
|
|
1707 if (state == sw_usual) {
|
|
|
1708 host_len = i;
|
|
|
1709 state = sw_rest;
|
|
|
1710 }
|
|
|
1711 break;
|
|
|
1712
|
|
|
1713 case '[':
|
|
|
1714 if (i == 0) {
|
|
|
1715 state = sw_literal;
|
|
|
1716 }
|
|
|
1717 break;
|
|
|
1718
|
|
|
1719 case ']':
|
|
|
1720 if (state == sw_literal) {
|
|
|
1721 host_len = i + 1;
|
|
|
1722 state = sw_rest;
|
|
|
1723 }
|
|
|
1724 break;
|
|
|
1725
|
|
|
1726 case '\0':
|
|
530
|
1727 return 0;
|
|
650
|
1728
|
|
|
1729 default:
|
|
|
1730
|
|
|
1731 if (ngx_path_separator(ch)) {
|
|
|
1732 return 0;
|
|
|
1733 }
|
|
|
1734
|
|
|
1735 if (ch >= 'A' && ch <= 'Z') {
|
|
|
1736 alloc = 1;
|
|
|
1737 }
|
|
|
1738
|
|
|
1739 break;
|
|
376
|
1740 }
|
|
|
1741 }
|
|
|
1742
|
|
650
|
1743 if (dot_pos == host_len - 1) {
|
|
|
1744 host_len--;
|
|
376
|
1745 }
|
|
|
1746
|
|
530
|
1747 if (alloc) {
|
|
650
|
1748 *host = ngx_pnalloc(r->pool, host_len);
|
|
530
|
1749 if (*host == NULL) {
|
|
|
1750 return -1;
|
|
|
1751 }
|
|
|
1752
|
|
650
|
1753 ngx_strlow(*host, h, host_len);
|
|
530
|
1754 }
|
|
|
1755
|
|
650
|
1756 return host_len;
|
|
376
|
1757 }
|
|
|
1758
|
|
|
1759
|
|
|
1760 static ngx_int_t
|
|
|
1761 ngx_http_find_virtual_server(ngx_http_request_t *r, u_char *host, size_t len)
|
|
|
1762 {
|
|
142
|
1763 ngx_http_core_loc_conf_t *clcf;
|
|
|
1764 ngx_http_core_srv_conf_t *cscf;
|
|
376
|
1765
|
|
478
|
1766 if (r->virtual_names == NULL) {
|
|
376
|
1767 return NGX_DECLINED;
|
|
|
1768 }
|
|
|
1769
|
|
530
|
1770 cscf = ngx_hash_find_combined(&r->virtual_names->names,
|
|
|
1771 ngx_hash_key(host, len), host, len);
|
|
312
|
1772
|
|
|
1773 if (cscf) {
|
|
|
1774 goto found;
|
|
26
|
1775 }
|
|
|
1776
|
|
326
|
1777 #if (NGX_PCRE)
|
|
|
1778
|
|
538
|
1779 if (len && r->virtual_names->nregex) {
|
|
356
|
1780 ngx_int_t n;
|
|
|
1781 ngx_uint_t i;
|
|
|
1782 ngx_str_t name;
|
|
|
1783 ngx_http_server_name_t *sn;
|
|
326
|
1784
|
|
|
1785 name.len = len;
|
|
530
|
1786 name.data = host;
|
|
326
|
1787
|
|
478
|
1788 sn = r->virtual_names->regex;
|
|
|
1789
|
|
|
1790 for (i = 0; i < r->virtual_names->nregex; i++) {
|
|
326
|
1791
|
|
546
|
1792 n = ngx_http_regex_exec(r, sn[i].regex, &name);
|
|
|
1793
|
|
|
1794 if (n == NGX_OK) {
|
|
|
1795 cscf = sn[i].server;
|
|
|
1796 goto found;
|
|
456
|
1797 }
|
|
|
1798
|
|
546
|
1799 if (n == NGX_DECLINED) {
|
|
326
|
1800 continue;
|
|
|
1801 }
|
|
|
1802
|
|
546
|
1803 return NGX_ERROR;
|
|
326
|
1804 }
|
|
|
1805 }
|
|
|
1806
|
|
|
1807 #endif
|
|
|
1808
|
|
376
|
1809 return NGX_OK;
|
|
58
|
1810
|
|
|
1811 found:
|
|
|
1812
|
|
142
|
1813 r->srv_conf = cscf->ctx->srv_conf;
|
|
|
1814 r->loc_conf = cscf->ctx->loc_conf;
|
|
58
|
1815
|
|
|
1816 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
484
|
1817 r->connection->log->file = clcf->error_log->file;
|
|
58
|
1818
|
|
|
1819 if (!(r->connection->log->log_level & NGX_LOG_DEBUG_CONNECTION)) {
|
|
484
|
1820 r->connection->log->log_level = clcf->error_log->log_level;
|
|
26
|
1821 }
|
|
|
1822
|
|
376
|
1823 return NGX_OK;
|
|
26
|
1824 }
|
|
|
1825
|
|
|
1826
|
|
58
|
1827 static void
|
|
|
1828 ngx_http_request_handler(ngx_event_t *ev)
|
|
|
1829 {
|
|
|
1830 ngx_connection_t *c;
|
|
|
1831 ngx_http_request_t *r;
|
|
214
|
1832 ngx_http_log_ctx_t *ctx;
|
|
58
|
1833
|
|
|
1834 c = ev->data;
|
|
|
1835 r = c->data;
|
|
|
1836
|
|
214
|
1837 ctx = c->log->data;
|
|
|
1838 ctx->current_request = r;
|
|
|
1839
|
|
426
|
1840 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
|
1841 "http run request: \"%V?%V\"", &r->uri, &r->args);
|
|
|
1842
|
|
58
|
1843 if (ev->write) {
|
|
|
1844 r->write_event_handler(r);
|
|
|
1845
|
|
|
1846 } else {
|
|
|
1847 r->read_event_handler(r);
|
|
|
1848 }
|
|
426
|
1849
|
|
|
1850 ngx_http_run_posted_requests(c);
|
|
|
1851 }
|
|
|
1852
|
|
|
1853
|
|
|
1854 void
|
|
|
1855 ngx_http_run_posted_requests(ngx_connection_t *c)
|
|
|
1856 {
|
|
|
1857 ngx_http_request_t *r;
|
|
|
1858 ngx_http_log_ctx_t *ctx;
|
|
|
1859 ngx_http_posted_request_t *pr;
|
|
|
1860
|
|
|
1861 for ( ;; ) {
|
|
|
1862
|
|
|
1863 if (c->destroyed) {
|
|
|
1864 return;
|
|
|
1865 }
|
|
|
1866
|
|
|
1867 r = c->data;
|
|
|
1868 pr = r->main->posted_requests;
|
|
|
1869
|
|
|
1870 if (pr == NULL) {
|
|
|
1871 return;
|
|
|
1872 }
|
|
|
1873
|
|
|
1874 r->main->posted_requests = pr->next;
|
|
|
1875
|
|
|
1876 r = pr->request;
|
|
|
1877
|
|
|
1878 ctx = c->log->data;
|
|
|
1879 ctx->current_request = r;
|
|
|
1880
|
|
|
1881 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
|
1882 "http posted request: \"%V?%V\"", &r->uri, &r->args);
|
|
|
1883
|
|
|
1884 r->write_event_handler(r);
|
|
|
1885 }
|
|
|
1886 }
|
|
|
1887
|
|
|
1888
|
|
|
1889 ngx_int_t
|
|
520
|
1890 ngx_http_post_request(ngx_http_request_t *r, ngx_http_posted_request_t *pr)
|
|
426
|
1891 {
|
|
520
|
1892 ngx_http_posted_request_t **p;
|
|
|
1893
|
|
426
|
1894 if (pr == NULL) {
|
|
520
|
1895 pr = ngx_palloc(r->pool, sizeof(ngx_http_posted_request_t));
|
|
|
1896 if (pr == NULL) {
|
|
|
1897 return NGX_ERROR;
|
|
|
1898 }
|
|
426
|
1899 }
|
|
|
1900
|
|
|
1901 pr->request = r;
|
|
|
1902 pr->next = NULL;
|
|
|
1903
|
|
|
1904 for (p = &r->main->posted_requests; *p; p = &(*p)->next) { /* void */ }
|
|
|
1905
|
|
|
1906 *p = pr;
|
|
|
1907
|
|
|
1908 return NGX_OK;
|
|
58
|
1909 }
|
|
|
1910
|
|
|
1911
|
|
50
|
1912 void
|
|
58
|
1913 ngx_http_finalize_request(ngx_http_request_t *r, ngx_int_t rc)
|
|
0
|
1914 {
|
|
330
|
1915 ngx_connection_t *c;
|
|
58
|
1916 ngx_http_request_t *pr;
|
|
0
|
1917 ngx_http_core_loc_conf_t *clcf;
|
|
|
1918
|
|
518
|
1919 c = r->connection;
|
|
|
1920
|
|
|
1921 ngx_log_debug5(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
|
1922 "http finalize request: %d, \"%V?%V\" a:%d, c:%d",
|
|
|
1923 rc, &r->uri, &r->args, r == c->data, r->main->count);
|
|
|
1924
|
|
58
|
1925 if (rc == NGX_DONE) {
|
|
518
|
1926 ngx_http_finalize_connection(r);
|
|
58
|
1927 return;
|
|
|
1928 }
|
|
|
1929
|
|
488
|
1930 if (rc == NGX_OK && r->filter_finalize) {
|
|
|
1931 c->error = 1;
|
|
|
1932 return;
|
|
|
1933 }
|
|
|
1934
|
|
230
|
1935 if (rc == NGX_DECLINED) {
|
|
|
1936 r->content_handler = NULL;
|
|
|
1937 r->write_event_handler = ngx_http_core_run_phases;
|
|
|
1938 ngx_http_core_run_phases(r);
|
|
|
1939 return;
|
|
|
1940 }
|
|
|
1941
|
|
248
|
1942 if (r != r->main && r->post_subrequest) {
|
|
|
1943 rc = r->post_subrequest->handler(r, r->post_subrequest->data, rc);
|
|
216
|
1944 }
|
|
|
1945
|
|
358
|
1946 if (rc == NGX_ERROR
|
|
|
1947 || rc == NGX_HTTP_REQUEST_TIME_OUT
|
|
|
1948 || rc == NGX_HTTP_CLIENT_CLOSED_REQUEST
|
|
|
1949 || c->error)
|
|
|
1950 {
|
|
162
|
1951 if (ngx_http_post_action(r) == NGX_OK) {
|
|
|
1952 return;
|
|
|
1953 }
|
|
|
1954
|
|
518
|
1955 if (r->main->blocked) {
|
|
|
1956 r->write_event_handler = ngx_http_request_finalizer;
|
|
|
1957 }
|
|
|
1958
|
|
|
1959 ngx_http_terminate_request(r, rc);
|
|
0
|
1960 return;
|
|
|
1961 }
|
|
|
1962
|
|
186
|
1963 if (rc >= NGX_HTTP_SPECIAL_RESPONSE
|
|
|
1964 || rc == NGX_HTTP_CREATED
|
|
|
1965 || rc == NGX_HTTP_NO_CONTENT)
|
|
|
1966 {
|
|
136
|
1967 if (rc == NGX_HTTP_CLOSE) {
|
|
518
|
1968 ngx_http_terminate_request(r, rc);
|
|
136
|
1969 return;
|
|
|
1970 }
|
|
|
1971
|
|
146
|
1972 if (r == r->main) {
|
|
330
|
1973 if (c->read->timer_set) {
|
|
|
1974 ngx_del_timer(c->read);
|
|
118
|
1975 }
|
|
|
1976
|
|
330
|
1977 if (c->write->timer_set) {
|
|
|
1978 ngx_del_timer(c->write);
|
|
118
|
1979 }
|
|
|
1980 }
|
|
|
1981
|
|
410
|
1982 c->read->handler = ngx_http_request_handler;
|
|
|
1983 c->write->handler = ngx_http_request_handler;
|
|
|
1984
|
|
118
|
1985 ngx_http_finalize_request(r, ngx_http_special_response_handler(r, rc));
|
|
|
1986 return;
|
|
|
1987 }
|
|
|
1988
|
|
426
|
1989 if (r != r->main) {
|
|
|
1990
|
|
|
1991 if (r->buffered || r->postponed) {
|
|
|
1992
|
|
|
1993 if (ngx_http_set_write_handler(r) != NGX_OK) {
|
|
518
|
1994 ngx_http_terminate_request(r, 0);
|
|
426
|
1995 }
|
|
|
1996
|
|
74
|
1997 return;
|
|
|
1998 }
|
|
426
|
1999
|
|
|
2000 #if (NGX_DEBUG)
|
|
|
2001 if (r != c->data) {
|
|
|
2002 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
|
2003 "http finalize non-active request: \"%V?%V\"",
|
|
|
2004 &r->uri, &r->args);
|
|
|
2005 }
|
|
|
2006 #endif
|
|
58
|
2007
|
|
|
2008 pr = r->parent;
|
|
|
2009
|
|
426
|
2010 if (r == c->data) {
|
|
|
2011
|
|
518
|
2012 r->main->count--;
|
|
|
2013
|
|
426
|
2014 if (!r->logged) {
|
|
|
2015
|
|
|
2016 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
2017
|
|
|
2018 if (clcf->log_subrequest) {
|
|
|
2019 ngx_http_log_request(r);
|
|
|
2020 }
|
|
|
2021
|
|
|
2022 r->logged = 1;
|
|
|
2023
|
|
|
2024 } else {
|
|
|
2025 ngx_log_error(NGX_LOG_ALERT, c->log, 0,
|
|
|
2026 "subrequest: \"%V?%V\" logged again",
|
|
|
2027 &r->uri, &r->args);
|
|
|
2028 }
|
|
|
2029
|
|
|
2030 r->done = 1;
|
|
|
2031
|
|
|
2032 if (pr->postponed && pr->postponed->request == r) {
|
|
|
2033 pr->postponed = pr->postponed->next;
|
|
|
2034 }
|
|
|
2035
|
|
|
2036 c->data = pr;
|
|
|
2037
|
|
|
2038 } else {
|
|
|
2039
|
|
|
2040 r->write_event_handler = ngx_http_request_finalizer;
|
|
|
2041
|
|
|
2042 if (r->waited) {
|
|
|
2043 r->done = 1;
|
|
|
2044 }
|
|
|
2045 }
|
|
|
2046
|
|
520
|
2047 if (ngx_http_post_request(pr, NULL) != NGX_OK) {
|
|
518
|
2048 r->main->count++;
|
|
|
2049 ngx_http_terminate_request(r, 0);
|
|
426
|
2050 return;
|
|
|
2051 }
|
|
|
2052
|
|
330
|
2053 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
426
|
2054 "http wake parent request: \"%V?%V\"",
|
|
|
2055 &pr->uri, &pr->args);
|
|
|
2056
|
|
|
2057 return;
|
|
|
2058 }
|
|
|
2059
|
|
518
|
2060 if (r->buffered || c->buffered || r->postponed || r->blocked) {
|
|
426
|
2061
|
|
|
2062 if (ngx_http_set_write_handler(r) != NGX_OK) {
|
|
518
|
2063 ngx_http_terminate_request(r, 0);
|
|
58
|
2064 }
|
|
|
2065
|
|
|
2066 return;
|
|
|
2067 }
|
|
0
|
2068
|
|
426
|
2069 if (r != c->data) {
|
|
|
2070 ngx_log_error(NGX_LOG_ALERT, c->log, 0,
|
|
|
2071 "http finalize non-active request: \"%V?%V\"",
|
|
|
2072 &r->uri, &r->args);
|
|
0
|
2073 return;
|
|
76
|
2074 }
|
|
|
2075
|
|
426
|
2076 r->done = 1;
|
|
562
|
2077 r->write_event_handler = ngx_http_request_empty_handler;
|
|
0
|
2078
|
|
178
|
2079 if (!r->post_action) {
|
|
|
2080 r->request_complete = 1;
|
|
|
2081 }
|
|
|
2082
|
|
162
|
2083 if (ngx_http_post_action(r) == NGX_OK) {
|
|
126
|
2084 return;
|
|
|
2085 }
|
|
|
2086
|
|
330
|
2087 if (c->read->timer_set) {
|
|
|
2088 ngx_del_timer(c->read);
|
|
|
2089 }
|
|
|
2090
|
|
|
2091 if (c->write->timer_set) {
|
|
|
2092 c->write->delayed = 0;
|
|
|
2093 ngx_del_timer(c->write);
|
|
0
|
2094 }
|
|
|
2095
|
|
518
|
2096 if (c->read->eof) {
|
|
|
2097 ngx_http_close_request(r, 0);
|
|
330
|
2098 return;
|
|
0
|
2099 }
|
|
|
2100
|
|
518
|
2101 ngx_http_finalize_connection(r);
|
|
|
2102 }
|
|
|
2103
|
|
|
2104
|
|
|
2105 static void
|
|
|
2106 ngx_http_terminate_request(ngx_http_request_t *r, ngx_int_t rc)
|
|
|
2107 {
|
|
520
|
2108 ngx_http_cleanup_t *cln;
|
|
|
2109 ngx_http_request_t *mr;
|
|
|
2110 ngx_http_ephemeral_t *e;
|
|
518
|
2111
|
|
|
2112 mr = r->main;
|
|
|
2113
|
|
|
2114 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
2115 "http terminate request count:%d", mr->count);
|
|
|
2116
|
|
532
|
2117 if (rc > 0 && (mr->headers_out.status == 0 || mr->connection->sent == 0)) {
|
|
|
2118 mr->headers_out.status = rc;
|
|
|
2119 }
|
|
|
2120
|
|
518
|
2121 cln = mr->cleanup;
|
|
|
2122 mr->cleanup = NULL;
|
|
|
2123
|
|
|
2124 while (cln) {
|
|
|
2125 if (cln->handler) {
|
|
|
2126 cln->handler(cln->data);
|
|
|
2127 }
|
|
|
2128
|
|
|
2129 cln = cln->next;
|
|
|
2130 }
|
|
|
2131
|
|
|
2132 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
2133 "http terminate cleanup count:%d blk:%d",
|
|
|
2134 mr->count, mr->blocked);
|
|
|
2135
|
|
|
2136 if (mr->write_event_handler) {
|
|
|
2137
|
|
|
2138 if (mr->blocked) {
|
|
|
2139 return;
|
|
|
2140 }
|
|
|
2141
|
|
520
|
2142 e = ngx_http_ephemeral(mr);
|
|
518
|
2143 mr->posted_requests = NULL;
|
|
|
2144 mr->write_event_handler = ngx_http_terminate_handler;
|
|
520
|
2145 (void) ngx_http_post_request(mr, &e->terminal_posted_request);
|
|
518
|
2146 return;
|
|
|
2147 }
|
|
|
2148
|
|
|
2149 ngx_http_close_request(mr, rc);
|
|
|
2150 }
|
|
|
2151
|
|
|
2152
|
|
|
2153 static void
|
|
|
2154 ngx_http_terminate_handler(ngx_http_request_t *r)
|
|
|
2155 {
|
|
|
2156 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
2157 "http terminate handler count:%d", r->count);
|
|
|
2158
|
|
|
2159 r->count = 1;
|
|
|
2160
|
|
|
2161 ngx_http_close_request(r, 0);
|
|
|
2162 }
|
|
|
2163
|
|
|
2164
|
|
|
2165 static void
|
|
|
2166 ngx_http_finalize_connection(ngx_http_request_t *r)
|
|
|
2167 {
|
|
|
2168 ngx_http_core_loc_conf_t *clcf;
|
|
|
2169
|
|
538
|
2170 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
2171
|
|
518
|
2172 if (r->main->count != 1) {
|
|
538
|
2173
|
|
|
2174 if (r->discard_body) {
|
|
|
2175 r->read_event_handler = ngx_http_discarded_request_body_handler;
|
|
632
|
2176 ngx_add_timer(r->connection->read, clcf->lingering_timeout);
|
|
538
|
2177
|
|
|
2178 if (r->lingering_time == 0) {
|
|
|
2179 r->lingering_time = ngx_time()
|
|
|
2180 + (time_t) (clcf->lingering_time / 1000);
|
|
|
2181 }
|
|
|
2182 }
|
|
|
2183
|
|
330
|
2184 ngx_http_close_request(r, 0);
|
|
138
|
2185 return;
|
|
|
2186 }
|
|
|
2187
|
|
0
|
2188 if (!ngx_terminate
|
|
|
2189 && !ngx_exiting
|
|
378
|
2190 && r->keepalive
|
|
0
|
2191 && clcf->keepalive_timeout > 0)
|
|
|
2192 {
|
|
|
2193 ngx_http_set_keepalive(r);
|
|
|
2194 return;
|
|
632
|
2195 }
|
|
|
2196
|
|
|
2197 if (clcf->lingering_close == NGX_HTTP_LINGERING_ALWAYS
|
|
|
2198 || (clcf->lingering_close == NGX_HTTP_LINGERING_ON
|
|
|
2199 && (r->lingering_close
|
|
|
2200 || r->header_in->pos < r->header_in->last
|
|
|
2201 || r->connection->read->ready)))
|
|
|
2202 {
|
|
0
|
2203 ngx_http_set_lingering_close(r);
|
|
|
2204 return;
|
|
|
2205 }
|
|
|
2206
|
|
|
2207 ngx_http_close_request(r, 0);
|
|
|
2208 }
|
|
|
2209
|
|
|
2210
|
|
74
|
2211 static ngx_int_t
|
|
50
|
2212 ngx_http_set_write_handler(ngx_http_request_t *r)
|
|
0
|
2213 {
|
|
|
2214 ngx_event_t *wev;
|
|
|
2215 ngx_http_core_loc_conf_t *clcf;
|
|
|
2216
|
|
58
|
2217 r->http_state = NGX_HTTP_WRITING_REQUEST_STATE;
|
|
|
2218
|
|
538
|
2219 r->read_event_handler = r->discard_body ?
|
|
|
2220 ngx_http_discarded_request_body_handler:
|
|
|
2221 ngx_http_test_reading;
|
|
74
|
2222 r->write_event_handler = ngx_http_writer;
|
|
|
2223
|
|
0
|
2224 wev = r->connection->write;
|
|
|
2225
|
|
|
2226 if (wev->ready && wev->delayed) {
|
|
74
|
2227 return NGX_OK;
|
|
0
|
2228 }
|
|
|
2229
|
|
58
|
2230 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
0
|
2231 if (!wev->delayed) {
|
|
|
2232 ngx_add_timer(wev, clcf->send_timeout);
|
|
|
2233 }
|
|
|
2234
|
|
430
|
2235 if (ngx_handle_write_event(wev, clcf->send_lowat) != NGX_OK) {
|
|
0
|
2236 ngx_http_close_request(r, 0);
|
|
74
|
2237 return NGX_ERROR;
|
|
0
|
2238 }
|
|
74
|
2239
|
|
|
2240 return NGX_OK;
|
|
0
|
2241 }
|
|
|
2242
|
|
|
2243
|
|
58
|
2244 static void
|
|
|
2245 ngx_http_writer(ngx_http_request_t *r)
|
|
0
|
2246 {
|
|
|
2247 int rc;
|
|
58
|
2248 ngx_event_t *wev;
|
|
0
|
2249 ngx_connection_t *c;
|
|
|
2250 ngx_http_core_loc_conf_t *clcf;
|
|
|
2251
|
|
58
|
2252 c = r->connection;
|
|
|
2253 wev = c->write;
|
|
|
2254
|
|
132
|
2255 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, wev->log, 0,
|
|
|
2256 "http writer handler: \"%V?%V\"", &r->uri, &r->args);
|
|
0
|
2257
|
|
426
|
2258 clcf = ngx_http_get_module_loc_conf(r->main, ngx_http_core_module);
|
|
|
2259
|
|
0
|
2260 if (wev->timedout) {
|
|
|
2261 if (!wev->delayed) {
|
|
54
|
2262 ngx_log_error(NGX_LOG_INFO, c->log, NGX_ETIMEDOUT,
|
|
|
2263 "client timed out");
|
|
|
2264 c->timedout = 1;
|
|
116
|
2265
|
|
162
|
2266 ngx_http_finalize_request(r, NGX_HTTP_REQUEST_TIME_OUT);
|
|
0
|
2267 return;
|
|
|
2268 }
|
|
|
2269
|
|
|
2270 wev->timedout = 0;
|
|
|
2271 wev->delayed = 0;
|
|
|
2272
|
|
|
2273 if (!wev->ready) {
|
|
|
2274 ngx_add_timer(wev, clcf->send_timeout);
|
|
|
2275
|
|
430
|
2276 if (ngx_handle_write_event(wev, clcf->send_lowat) != NGX_OK) {
|
|
118
|
2277 ngx_http_close_request(r, 0);
|
|
0
|
2278 }
|
|
|
2279
|
|
|
2280 return;
|
|
|
2281 }
|
|
|
2282
|
|
644
|
2283 }
|
|
|
2284
|
|
|
2285 if (wev->delayed || r->aio) {
|
|
|
2286 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, wev->log, 0,
|
|
|
2287 "http writer delayed");
|
|
|
2288
|
|
|
2289 if (ngx_handle_write_event(wev, clcf->send_lowat) != NGX_OK) {
|
|
|
2290 ngx_http_close_request(r, 0);
|
|
0
|
2291 }
|
|
644
|
2292
|
|
|
2293 return;
|
|
0
|
2294 }
|
|
|
2295
|
|
132
|
2296 rc = ngx_http_output_filter(r, NULL);
|
|
|
2297
|
|
|
2298 ngx_log_debug3(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
|
2299 "http writer output filter: %d, \"%V?%V\"",
|
|
|
2300 rc, &r->uri, &r->args);
|
|
0
|
2301
|
|
494
|
2302 if (rc == NGX_ERROR) {
|
|
|
2303 ngx_http_finalize_request(r, rc);
|
|
|
2304 return;
|
|
|
2305 }
|
|
|
2306
|
|
426
|
2307 if (r->buffered || r->postponed || (r == r->main && c->buffered)) {
|
|
|
2308
|
|
644
|
2309 if (!wev->delayed) {
|
|
0
|
2310 ngx_add_timer(wev, clcf->send_timeout);
|
|
|
2311 }
|
|
|
2312
|
|
430
|
2313 if (ngx_handle_write_event(wev, clcf->send_lowat) != NGX_OK) {
|
|
118
|
2314 ngx_http_close_request(r, 0);
|
|
0
|
2315 }
|
|
|
2316
|
|
426
|
2317 return;
|
|
0
|
2318 }
|
|
|
2319
|
|
132
|
2320 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, wev->log, 0,
|
|
|
2321 "http writer done: \"%V?%V\"", &r->uri, &r->args);
|
|
0
|
2322
|
|
538
|
2323 r->write_event_handler = ngx_http_request_empty_handler;
|
|
|
2324
|
|
0
|
2325 ngx_http_finalize_request(r, rc);
|
|
|
2326 }
|
|
|
2327
|
|
|
2328
|
|
426
|
2329 static void
|
|
|
2330 ngx_http_request_finalizer(ngx_http_request_t *r)
|
|
|
2331 {
|
|
|
2332 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
2333 "http finalizer done: \"%V?%V\"", &r->uri, &r->args);
|
|
|
2334
|
|
|
2335 ngx_http_finalize_request(r, 0);
|
|
|
2336 }
|
|
|
2337
|
|
|
2338
|
|
326
|
2339 void
|
|
|
2340 ngx_http_block_reading(ngx_http_request_t *r)
|
|
0
|
2341 {
|
|
318
|
2342 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
326
|
2343 "http reading blocked");
|
|
318
|
2344
|
|
|
2345 /* aio does not call this handler */
|
|
|
2346
|
|
|
2347 if ((ngx_event_flags & NGX_USE_LEVEL_EVENT)
|
|
|
2348 && r->connection->read->active)
|
|
|
2349 {
|
|
430
|
2350 if (ngx_del_event(r->connection->read, NGX_READ_EVENT, 0) != NGX_OK) {
|
|
318
|
2351 ngx_http_close_request(r, 0);
|
|
|
2352 }
|
|
|
2353 }
|
|
|
2354 }
|
|
|
2355
|
|
|
2356
|
|
416
|
2357 void
|
|
326
|
2358 ngx_http_test_reading(ngx_http_request_t *r)
|
|
318
|
2359 {
|
|
276
|
2360 int n;
|
|
|
2361 char buf[1];
|
|
|
2362 ngx_err_t err;
|
|
|
2363 ngx_event_t *rev;
|
|
|
2364 ngx_connection_t *c;
|
|
|
2365
|
|
|
2366 c = r->connection;
|
|
|
2367 rev = c->read;
|
|
|
2368
|
|
326
|
2369 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "http test reading");
|
|
276
|
2370
|
|
|
2371 #if (NGX_HAVE_KQUEUE)
|
|
|
2372
|
|
|
2373 if (ngx_event_flags & NGX_USE_KQUEUE_EVENT) {
|
|
|
2374
|
|
|
2375 if (!rev->pending_eof) {
|
|
|
2376 return;
|
|
|
2377 }
|
|
|
2378
|
|
|
2379 rev->eof = 1;
|
|
|
2380 c->error = 1;
|
|
|
2381 err = rev->kq_errno;
|
|
|
2382
|
|
|
2383 goto closed;
|
|
|
2384 }
|
|
|
2385
|
|
|
2386 #endif
|
|
|
2387
|
|
|
2388 n = recv(c->fd, buf, 1, MSG_PEEK);
|
|
|
2389
|
|
|
2390 if (n == 0) {
|
|
|
2391 rev->eof = 1;
|
|
|
2392 c->error = 1;
|
|
|
2393 err = 0;
|
|
|
2394
|
|
|
2395 goto closed;
|
|
|
2396
|
|
|
2397 } else if (n == -1) {
|
|
|
2398 err = ngx_socket_errno;
|
|
|
2399
|
|
|
2400 if (err != NGX_EAGAIN) {
|
|
|
2401 rev->eof = 1;
|
|
|
2402 c->error = 1;
|
|
|
2403
|
|
|
2404 goto closed;
|
|
|
2405 }
|
|
|
2406 }
|
|
0
|
2407
|
|
|
2408 /* aio does not call this handler */
|
|
|
2409
|
|
276
|
2410 if ((ngx_event_flags & NGX_USE_LEVEL_EVENT) && rev->active) {
|
|
|
2411
|
|
430
|
2412 if (ngx_del_event(rev, NGX_READ_EVENT, 0) != NGX_OK) {
|
|
0
|
2413 ngx_http_close_request(r, 0);
|
|
|
2414 }
|
|
|
2415 }
|
|
276
|
2416
|
|
|
2417 return;
|
|
|
2418
|
|
|
2419 closed:
|
|
|
2420
|
|
|
2421 if (err) {
|
|
|
2422 rev->error = 1;
|
|
|
2423 }
|
|
|
2424
|
|
|
2425 ngx_log_error(NGX_LOG_INFO, c->log, err,
|
|
|
2426 "client closed prematurely connection");
|
|
|
2427
|
|
286
|
2428 ngx_http_finalize_request(r, 0);
|
|
0
|
2429 }
|
|
|
2430
|
|
|
2431
|
|
50
|
2432 static void
|
|
|
2433 ngx_http_set_keepalive(ngx_http_request_t *r)
|
|
0
|
2434 {
|
|
2
|
2435 int tcp_nodelay;
|
|
0
|
2436 ngx_int_t i;
|
|
|
2437 ngx_buf_t *b, *f;
|
|
|
2438 ngx_event_t *rev, *wev;
|
|
|
2439 ngx_connection_t *c;
|
|
|
2440 ngx_http_connection_t *hc;
|
|
|
2441 ngx_http_core_srv_conf_t *cscf;
|
|
|
2442 ngx_http_core_loc_conf_t *clcf;
|
|
|
2443
|
|
|
2444 c = r->connection;
|
|
|
2445 rev = c->read;
|
|
|
2446
|
|
326
|
2447 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
2448
|
|
0
|
2449 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "set http keepalive handler");
|
|
|
2450
|
|
326
|
2451 if (r->discard_body) {
|
|
442
|
2452 r->write_event_handler = ngx_http_request_empty_handler;
|
|
326
|
2453 r->lingering_time = ngx_time() + (time_t) (clcf->lingering_time / 1000);
|
|
|
2454 ngx_add_timer(rev, clcf->lingering_timeout);
|
|
|
2455 return;
|
|
|
2456 }
|
|
|
2457
|
|
32
|
2458 c->log->action = "closing request";
|
|
0
|
2459
|
|
|
2460 hc = r->http_connection;
|
|
|
2461 b = r->header_in;
|
|
|
2462
|
|
|
2463 if (b->pos < b->last) {
|
|
|
2464
|
|
|
2465 /* the pipelined request */
|
|
|
2466
|
|
|
2467 if (b != c->buffer) {
|
|
|
2468
|
|
4
|
2469 /*
|
|
|
2470 * If the large header buffers were allocated while the previous
|
|
|
2471 * request processing then we do not use c->buffer for
|
|
|
2472 * the pipelined request (see ngx_http_init_request()).
|
|
126
|
2473 *
|
|
4
|
2474 * Now we would move the large header buffers to the free list.
|
|
|
2475 */
|
|
0
|
2476
|
|
|
2477 cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
|
|
|
2478
|
|
|
2479 if (hc->free == NULL) {
|
|
|
2480 hc->free = ngx_palloc(c->pool,
|
|
|
2481 cscf->large_client_header_buffers.num * sizeof(ngx_buf_t *));
|
|
|
2482
|
|
|
2483 if (hc->free == NULL) {
|
|
26
|
2484 ngx_http_close_request(r, 0);
|
|
0
|
2485 return;
|
|
|
2486 }
|
|
|
2487 }
|
|
|
2488
|
|
|
2489 for (i = 0; i < hc->nbusy - 1; i++) {
|
|
|
2490 f = hc->busy[i];
|
|
|
2491 hc->free[hc->nfree++] = f;
|
|
|
2492 f->pos = f->start;
|
|
|
2493 f->last = f->start;
|
|
|
2494 }
|
|
|
2495
|
|
|
2496 hc->busy[0] = b;
|
|
|
2497 hc->nbusy = 1;
|
|
|
2498 }
|
|
|
2499 }
|
|
|
2500
|
|
532
|
2501 r->keepalive = 0;
|
|
|
2502
|
|
518
|
2503 ngx_http_free_request(r, 0);
|
|
118
|
2504
|
|
0
|
2505 c->data = hc;
|
|
|
2506
|
|
|
2507 ngx_add_timer(rev, clcf->keepalive_timeout);
|
|
|
2508
|
|
430
|
2509 if (ngx_handle_read_event(rev, 0) != NGX_OK) {
|
|
0
|
2510 ngx_http_close_connection(c);
|
|
|
2511 return;
|
|
|
2512 }
|
|
|
2513
|
|
|
2514 wev = c->write;
|
|
58
|
2515 wev->handler = ngx_http_empty_handler;
|
|
0
|
2516
|
|
|
2517 if (b->pos < b->last) {
|
|
|
2518
|
|
|
2519 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "pipelined request");
|
|
|
2520
|
|
116
|
2521 #if (NGX_STAT_STUB)
|
|
502
|
2522 (void) ngx_atomic_fetch_add(ngx_stat_reading, 1);
|
|
116
|
2523 #endif
|
|
|
2524
|
|
0
|
2525 hc->pipeline = 1;
|
|
32
|
2526 c->log->action = "reading client pipelined request line";
|
|
116
|
2527
|
|
376
|
2528 rev->handler = ngx_http_init_request;
|
|
|
2529 ngx_post_event(rev, &ngx_posted_events);
|
|
0
|
2530 return;
|
|
|
2531 }
|
|
|
2532
|
|
|
2533 hc->pipeline = 0;
|
|
|
2534
|
|
4
|
2535 /*
|
|
|
2536 * To keep a memory footprint as small as possible for an idle
|
|
|
2537 * keepalive connection we try to free the ngx_http_request_t and
|
|
|
2538 * c->buffer's memory if they were allocated outside the c->pool.
|
|
|
2539 * The large header buffers are always allocated outside the c->pool and
|
|
|
2540 * are freed too.
|
|
|
2541 */
|
|
|
2542
|
|
0
|
2543 if (ngx_pfree(c->pool, r) == NGX_OK) {
|
|
|
2544 hc->request = NULL;
|
|
|
2545 }
|
|
|
2546
|
|
|
2547 b = c->buffer;
|
|
|
2548
|
|
|
2549 if (ngx_pfree(c->pool, b->start) == NGX_OK) {
|
|
4
|
2550
|
|
|
2551 /*
|
|
|
2552 * the special note for ngx_http_keepalive_handler() that
|
|
|
2553 * c->buffer's memory was freed
|
|
|
2554 */
|
|
|
2555
|
|
0
|
2556 b->pos = NULL;
|
|
|
2557
|
|
|
2558 } else {
|
|
|
2559 b->pos = b->start;
|
|
|
2560 b->last = b->start;
|
|
|
2561 }
|
|
|
2562
|
|
10
|
2563 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, c->log, 0, "hc free: %p %d",
|
|
0
|
2564 hc->free, hc->nfree);
|
|
|
2565
|
|
|
2566 if (hc->free) {
|
|
|
2567 for (i = 0; i < hc->nfree; i++) {
|
|
356
|
2568 ngx_pfree(c->pool, hc->free[i]->start);
|
|
0
|
2569 hc->free[i] = NULL;
|
|
|
2570 }
|
|
|
2571
|
|
|
2572 hc->nfree = 0;
|
|
|
2573 }
|
|
|
2574
|
|
10
|
2575 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, c->log, 0, "hc busy: %p %d",
|
|
0
|
2576 hc->busy, hc->nbusy);
|
|
|
2577
|
|
|
2578 if (hc->busy) {
|
|
|
2579 for (i = 0; i < hc->nbusy; i++) {
|
|
356
|
2580 ngx_pfree(c->pool, hc->busy[i]->start);
|
|
0
|
2581 hc->busy[i] = NULL;
|
|
|
2582 }
|
|
|
2583
|
|
|
2584 hc->nbusy = 0;
|
|
|
2585 }
|
|
|
2586
|
|
358
|
2587 #if (NGX_HTTP_SSL)
|
|
|
2588 if (c->ssl) {
|
|
|
2589 ngx_ssl_free_buffer(c);
|
|
|
2590 }
|
|
|
2591 #endif
|
|
|
2592
|
|
58
|
2593 rev->handler = ngx_http_keepalive_handler;
|
|
0
|
2594
|
|
132
|
2595 if (wev->active && (ngx_event_flags & NGX_USE_LEVEL_EVENT)) {
|
|
430
|
2596 if (ngx_del_event(wev, NGX_WRITE_EVENT, 0) != NGX_OK) {
|
|
132
|
2597 ngx_http_close_connection(c);
|
|
|
2598 return;
|
|
0
|
2599 }
|
|
|
2600 }
|
|
|
2601
|
|
32
|
2602 c->log->action = "keepalive";
|
|
0
|
2603
|
|
|
2604 if (c->tcp_nopush == NGX_TCP_NOPUSH_SET) {
|
|
50
|
2605 if (ngx_tcp_push(c->fd) == -1) {
|
|
0
|
2606 ngx_connection_error(c, ngx_socket_errno, ngx_tcp_push_n " failed");
|
|
|
2607 ngx_http_close_connection(c);
|
|
|
2608 return;
|
|
|
2609 }
|
|
2
|
2610
|
|
0
|
2611 c->tcp_nopush = NGX_TCP_NOPUSH_UNSET;
|
|
22
|
2612 tcp_nodelay = ngx_tcp_nodelay_and_tcp_nopush ? 1 : 0;
|
|
2
|
2613
|
|
|
2614 } else {
|
|
22
|
2615 tcp_nodelay = 1;
|
|
|
2616 }
|
|
|
2617
|
|
32
|
2618 if (tcp_nodelay
|
|
|
2619 && clcf->tcp_nodelay
|
|
|
2620 && c->tcp_nodelay == NGX_TCP_NODELAY_UNSET)
|
|
|
2621 {
|
|
22
|
2622 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "tcp_nodelay");
|
|
|
2623
|
|
|
2624 if (setsockopt(c->fd, IPPROTO_TCP, TCP_NODELAY,
|
|
184
|
2625 (const void *) &tcp_nodelay, sizeof(int))
|
|
|
2626 == -1)
|
|
22
|
2627 {
|
|
460
|
2628 #if (NGX_SOLARIS)
|
|
|
2629 /* Solaris returns EINVAL if a socket has been shut down */
|
|
|
2630 c->log_error = NGX_ERROR_IGNORE_EINVAL;
|
|
|
2631 #endif
|
|
|
2632
|
|
22
|
2633 ngx_connection_error(c, ngx_socket_errno,
|
|
|
2634 "setsockopt(TCP_NODELAY) failed");
|
|
460
|
2635
|
|
|
2636 c->log_error = NGX_ERROR_INFO;
|
|
22
|
2637 ngx_http_close_connection(c);
|
|
|
2638 return;
|
|
2
|
2639 }
|
|
22
|
2640
|
|
32
|
2641 c->tcp_nodelay = NGX_TCP_NODELAY_SET;
|
|
0
|
2642 }
|
|
|
2643
|
|
|
2644 #if 0
|
|
4
|
2645 /* if ngx_http_request_t was freed then we need some other place */
|
|
0
|
2646 r->http_state = NGX_HTTP_KEEPALIVE_STATE;
|
|
|
2647 #endif
|
|
|
2648
|
|
290
|
2649 c->idle = 1;
|
|
618
|
2650 ngx_reusable_connection(c, 1);
|
|
290
|
2651
|
|
0
|
2652 if (rev->ready) {
|
|
376
|
2653 ngx_post_event(rev, &ngx_posted_events);
|
|
0
|
2654 }
|
|
|
2655 }
|
|
|
2656
|
|
|
2657
|
|
50
|
2658 static void
|
|
|
2659 ngx_http_keepalive_handler(ngx_event_t *rev)
|
|
0
|
2660 {
|
|
50
|
2661 size_t size;
|
|
|
2662 ssize_t n;
|
|
|
2663 ngx_buf_t *b;
|
|
|
2664 ngx_connection_t *c;
|
|
0
|
2665
|
|
|
2666 c = rev->data;
|
|
|
2667
|
|
|
2668 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "http keepalive handler");
|
|
|
2669
|
|
290
|
2670 if (rev->timedout || c->close) {
|
|
0
|
2671 ngx_http_close_connection(c);
|
|
|
2672 return;
|
|
|
2673 }
|
|
|
2674
|
|
18
|
2675 #if (NGX_HAVE_KQUEUE)
|
|
0
|
2676
|
|
4
|
2677 if (ngx_event_flags & NGX_USE_KQUEUE_EVENT) {
|
|
136
|
2678 if (rev->pending_eof) {
|
|
32
|
2679 c->log->handler = NULL;
|
|
0
|
2680 ngx_log_error(NGX_LOG_INFO, c->log, rev->kq_errno,
|
|
10
|
2681 "kevent() reported that client %V closed "
|
|
32
|
2682 "keepalive connection", &c->addr_text);
|
|
22
|
2683 #if (NGX_HTTP_SSL)
|
|
|
2684 if (c->ssl) {
|
|
96
|
2685 c->ssl->no_send_shutdown = 1;
|
|
22
|
2686 }
|
|
|
2687 #endif
|
|
0
|
2688 ngx_http_close_connection(c);
|
|
|
2689 return;
|
|
|
2690 }
|
|
|
2691 }
|
|
|
2692
|
|
|
2693 #endif
|
|
|
2694
|
|
|
2695 b = c->buffer;
|
|
|
2696 size = b->end - b->start;
|
|
|
2697
|
|
|
2698 if (b->pos == NULL) {
|
|
4
|
2699
|
|
|
2700 /*
|
|
|
2701 * The c->buffer's memory was freed by ngx_http_set_keepalive().
|
|
|
2702 * However, the c->buffer->start and c->buffer->end were not changed
|
|
|
2703 * to keep the buffer size.
|
|
|
2704 */
|
|
|
2705
|
|
50
|
2706 b->pos = ngx_palloc(c->pool, size);
|
|
|
2707 if (b->pos == NULL) {
|
|
0
|
2708 ngx_http_close_connection(c);
|
|
|
2709 return;
|
|
|
2710 }
|
|
|
2711
|
|
|
2712 b->start = b->pos;
|
|
|
2713 b->last = b->pos;
|
|
|
2714 b->end = b->pos + size;
|
|
|
2715 }
|
|
|
2716
|
|
|
2717 /*
|
|
|
2718 * MSIE closes a keepalive connection with RST flag
|
|
|
2719 * so we ignore ECONNRESET here.
|
|
|
2720 */
|
|
|
2721
|
|
|
2722 c->log_error = NGX_ERROR_IGNORE_ECONNRESET;
|
|
|
2723 ngx_set_socket_errno(0);
|
|
|
2724
|
|
|
2725 n = c->recv(c, b->last, size);
|
|
|
2726 c->log_error = NGX_ERROR_INFO;
|
|
|
2727
|
|
|
2728 if (n == NGX_AGAIN) {
|
|
430
|
2729 if (ngx_handle_read_event(rev, 0) != NGX_OK) {
|
|
24
|
2730 ngx_http_close_connection(c);
|
|
|
2731 }
|
|
|
2732
|
|
0
|
2733 return;
|
|
|
2734 }
|
|
|
2735
|
|
|
2736 if (n == NGX_ERROR) {
|
|
|
2737 ngx_http_close_connection(c);
|
|
|
2738 return;
|
|
|
2739 }
|
|
|
2740
|
|
32
|
2741 c->log->handler = NULL;
|
|
0
|
2742
|
|
|
2743 if (n == 0) {
|
|
|
2744 ngx_log_error(NGX_LOG_INFO, c->log, ngx_socket_errno,
|
|
32
|
2745 "client %V closed keepalive connection", &c->addr_text);
|
|
0
|
2746 ngx_http_close_connection(c);
|
|
|
2747 return;
|
|
|
2748 }
|
|
|
2749
|
|
|
2750 b->last += n;
|
|
32
|
2751
|
|
116
|
2752 #if (NGX_STAT_STUB)
|
|
502
|
2753 (void) ngx_atomic_fetch_add(ngx_stat_reading, 1);
|
|
116
|
2754 #endif
|
|
|
2755
|
|
32
|
2756 c->log->handler = ngx_http_log_error;
|
|
|
2757 c->log->action = "reading client request line";
|
|
0
|
2758
|
|
290
|
2759 c->idle = 0;
|
|
618
|
2760 ngx_reusable_connection(c, 0);
|
|
290
|
2761
|
|
0
|
2762 ngx_http_init_request(rev);
|
|
|
2763 }
|
|
|
2764
|
|
|
2765
|
|
50
|
2766 static void
|
|
|
2767 ngx_http_set_lingering_close(ngx_http_request_t *r)
|
|
126
|
2768 {
|
|
0
|
2769 ngx_event_t *rev, *wev;
|
|
|
2770 ngx_connection_t *c;
|
|
|
2771 ngx_http_core_loc_conf_t *clcf;
|
|
|
2772
|
|
|
2773 c = r->connection;
|
|
|
2774
|
|
|
2775 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
2776
|
|
|
2777 rev = c->read;
|
|
58
|
2778 rev->handler = ngx_http_lingering_close_handler;
|
|
0
|
2779
|
|
106
|
2780 r->lingering_time = ngx_time() + (time_t) (clcf->lingering_time / 1000);
|
|
0
|
2781 ngx_add_timer(rev, clcf->lingering_timeout);
|
|
|
2782
|
|
430
|
2783 if (ngx_handle_read_event(rev, 0) != NGX_OK) {
|
|
0
|
2784 ngx_http_close_request(r, 0);
|
|
|
2785 return;
|
|
|
2786 }
|
|
|
2787
|
|
|
2788 wev = c->write;
|
|
58
|
2789 wev->handler = ngx_http_empty_handler;
|
|
0
|
2790
|
|
132
|
2791 if (wev->active && (ngx_event_flags & NGX_USE_LEVEL_EVENT)) {
|
|
430
|
2792 if (ngx_del_event(wev, NGX_WRITE_EVENT, 0) != NGX_OK) {
|
|
132
|
2793 ngx_http_close_request(r, 0);
|
|
|
2794 return;
|
|
0
|
2795 }
|
|
|
2796 }
|
|
|
2797
|
|
|
2798 if (ngx_shutdown_socket(c->fd, NGX_WRITE_SHUTDOWN) == -1) {
|
|
|
2799 ngx_connection_error(c, ngx_socket_errno,
|
|
|
2800 ngx_shutdown_socket_n " failed");
|
|
|
2801 ngx_http_close_request(r, 0);
|
|
|
2802 return;
|
|
|
2803 }
|
|
|
2804
|
|
|
2805 if (rev->ready) {
|
|
|
2806 ngx_http_lingering_close_handler(rev);
|
|
|
2807 }
|
|
|
2808 }
|
|
|
2809
|
|
|
2810
|
|
50
|
2811 static void
|
|
|
2812 ngx_http_lingering_close_handler(ngx_event_t *rev)
|
|
0
|
2813 {
|
|
|
2814 ssize_t n;
|
|
|
2815 ngx_msec_t timer;
|
|
|
2816 ngx_connection_t *c;
|
|
|
2817 ngx_http_request_t *r;
|
|
|
2818 ngx_http_core_loc_conf_t *clcf;
|
|
|
2819 u_char buffer[NGX_HTTP_LINGERING_BUFFER_SIZE];
|
|
|
2820
|
|
|
2821 c = rev->data;
|
|
|
2822 r = c->data;
|
|
|
2823
|
|
|
2824 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
|
2825 "http lingering close handler");
|
|
|
2826
|
|
|
2827 if (rev->timedout) {
|
|
|
2828 ngx_http_close_request(r, 0);
|
|
|
2829 return;
|
|
|
2830 }
|
|
|
2831
|
|
346
|
2832 timer = (ngx_msec_t) (r->lingering_time - ngx_time());
|
|
0
|
2833 if (timer <= 0) {
|
|
|
2834 ngx_http_close_request(r, 0);
|
|
|
2835 return;
|
|
|
2836 }
|
|
|
2837
|
|
|
2838 do {
|
|
|
2839 n = c->recv(c, buffer, NGX_HTTP_LINGERING_BUFFER_SIZE);
|
|
|
2840
|
|
|
2841 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0, "lingering read: %d", n);
|
|
|
2842
|
|
|
2843 if (n == NGX_ERROR || n == 0) {
|
|
|
2844 ngx_http_close_request(r, 0);
|
|
|
2845 return;
|
|
|
2846 }
|
|
|
2847
|
|
|
2848 } while (rev->ready);
|
|
|
2849
|
|
430
|
2850 if (ngx_handle_read_event(rev, 0) != NGX_OK) {
|
|
26
|
2851 ngx_http_close_request(r, 0);
|
|
24
|
2852 return;
|
|
|
2853 }
|
|
|
2854
|
|
0
|
2855 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
2856
|
|
|
2857 timer *= 1000;
|
|
|
2858
|
|
|
2859 if (timer > clcf->lingering_timeout) {
|
|
|
2860 timer = clcf->lingering_timeout;
|
|
|
2861 }
|
|
|
2862
|
|
|
2863 ngx_add_timer(rev, timer);
|
|
|
2864 }
|
|
|
2865
|
|
|
2866
|
|
50
|
2867 void
|
|
|
2868 ngx_http_empty_handler(ngx_event_t *wev)
|
|
0
|
2869 {
|
|
|
2870 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, wev->log, 0, "http empty handler");
|
|
|
2871
|
|
|
2872 return;
|
|
|
2873 }
|
|
|
2874
|
|
|
2875
|
|
58
|
2876 void
|
|
|
2877 ngx_http_request_empty_handler(ngx_http_request_t *r)
|
|
|
2878 {
|
|
|
2879 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
132
|
2880 "http request empty handler");
|
|
58
|
2881
|
|
|
2882 return;
|
|
|
2883 }
|
|
|
2884
|
|
|
2885
|
|
50
|
2886 ngx_int_t
|
|
130
|
2887 ngx_http_send_special(ngx_http_request_t *r, ngx_uint_t flags)
|
|
0
|
2888 {
|
|
|
2889 ngx_buf_t *b;
|
|
|
2890 ngx_chain_t out;
|
|
|
2891
|
|
50
|
2892 b = ngx_calloc_buf(r->pool);
|
|
|
2893 if (b == NULL) {
|
|
0
|
2894 return NGX_ERROR;
|
|
|
2895 }
|
|
|
2896
|
|
130
|
2897 if (flags & NGX_HTTP_LAST) {
|
|
506
|
2898
|
|
|
2899 if (r == r->main && !r->post_action) {
|
|
|
2900 b->last_buf = 1;
|
|
|
2901
|
|
|
2902 } else {
|
|
510
|
2903 b->sync = 1;
|
|
506
|
2904 b->last_in_chain = 1;
|
|
|
2905 }
|
|
130
|
2906 }
|
|
|
2907
|
|
|
2908 if (flags & NGX_HTTP_FLUSH) {
|
|
|
2909 b->flush = 1;
|
|
|
2910 }
|
|
|
2911
|
|
0
|
2912 out.buf = b;
|
|
|
2913 out.next = NULL;
|
|
|
2914
|
|
|
2915 return ngx_http_output_filter(r, &out);
|
|
|
2916 }
|
|
|
2917
|
|
|
2918
|
|
162
|
2919 static ngx_int_t
|
|
|
2920 ngx_http_post_action(ngx_http_request_t *r)
|
|
|
2921 {
|
|
|
2922 ngx_http_core_loc_conf_t *clcf;
|
|
|
2923
|
|
|
2924 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
2925
|
|
|
2926 if (clcf->post_action.data == NULL) {
|
|
|
2927 return NGX_DECLINED;
|
|
|
2928 }
|
|
|
2929
|
|
172
|
2930 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
2931 "post action: \"%V\"", &clcf->post_action);
|
|
|
2932
|
|
528
|
2933 r->main->count--;
|
|
|
2934
|
|
162
|
2935 r->http_version = NGX_HTTP_VERSION_9;
|
|
|
2936 r->header_only = 1;
|
|
178
|
2937 r->post_action = 1;
|
|
162
|
2938
|
|
326
|
2939 r->read_event_handler = ngx_http_block_reading;
|
|
262
|
2940
|
|
366
|
2941 if (clcf->post_action.data[0] == '/') {
|
|
|
2942 ngx_http_internal_redirect(r, &clcf->post_action, NULL);
|
|
|
2943
|
|
|
2944 } else {
|
|
|
2945 ngx_http_named_location(r, &clcf->post_action);
|
|
|
2946 }
|
|
162
|
2947
|
|
|
2948 return NGX_OK;
|
|
|
2949 }
|
|
|
2950
|
|
|
2951
|
|
|
2952 static void
|
|
518
|
2953 ngx_http_close_request(ngx_http_request_t *r, ngx_int_t rc)
|
|
0
|
2954 {
|
|
188
|
2955 ngx_connection_t *c;
|
|
118
|
2956
|
|
518
|
2957 r = r->main;
|
|
118
|
2958 c = r->connection;
|
|
188
|
2959
|
|
518
|
2960 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
|
2961 "http request count:%d blk:%d", r->count, r->blocked);
|
|
|
2962
|
|
|
2963 if (r->count == 0) {
|
|
|
2964 ngx_log_error(NGX_LOG_ALERT, c->log, 0, "http request count is zero");
|
|
|
2965 }
|
|
|
2966
|
|
|
2967 r->count--;
|
|
|
2968
|
|
|
2969 if (r->count || r->blocked) {
|
|
|
2970 return;
|
|
|
2971 }
|
|
|
2972
|
|
|
2973 ngx_http_free_request(r, rc);
|
|
118
|
2974 ngx_http_close_connection(c);
|
|
|
2975 }
|
|
|
2976
|
|
|
2977
|
|
162
|
2978 static void
|
|
518
|
2979 ngx_http_free_request(ngx_http_request_t *r, ngx_int_t rc)
|
|
118
|
2980 {
|
|
412
|
2981 ngx_log_t *log;
|
|
|
2982 struct linger linger;
|
|
|
2983 ngx_http_cleanup_t *cln;
|
|
|
2984 ngx_http_log_ctx_t *ctx;
|
|
|
2985 ngx_http_core_loc_conf_t *clcf;
|
|
0
|
2986
|
|
|
2987 log = r->connection->log;
|
|
|
2988
|
|
|
2989 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, log, 0, "http close request");
|
|
|
2990
|
|
|
2991 if (r->pool == NULL) {
|
|
80
|
2992 ngx_log_error(NGX_LOG_ALERT, log, 0, "http request already closed");
|
|
0
|
2993 return;
|
|
|
2994 }
|
|
|
2995
|
|
188
|
2996 for (cln = r->cleanup; cln; cln = cln->next) {
|
|
|
2997 if (cln->handler) {
|
|
|
2998 cln->handler(cln->data);
|
|
|
2999 }
|
|
|
3000 }
|
|
|
3001
|
|
0
|
3002 #if (NGX_STAT_STUB)
|
|
116
|
3003
|
|
0
|
3004 if (r->stat_reading) {
|
|
502
|
3005 (void) ngx_atomic_fetch_add(ngx_stat_reading, -1);
|
|
0
|
3006 }
|
|
|
3007
|
|
|
3008 if (r->stat_writing) {
|
|
502
|
3009 (void) ngx_atomic_fetch_add(ngx_stat_writing, -1);
|
|
0
|
3010 }
|
|
116
|
3011
|
|
0
|
3012 #endif
|
|
|
3013
|
|
518
|
3014 if (rc > 0 && (r->headers_out.status == 0 || r->connection->sent == 0)) {
|
|
|
3015 r->headers_out.status = rc;
|
|
0
|
3016 }
|
|
|
3017
|
|
386
|
3018 log->action = "logging request";
|
|
|
3019
|
|
412
|
3020 ngx_http_log_request(r);
|
|
0
|
3021
|
|
386
|
3022 log->action = "closing request";
|
|
|
3023
|
|
0
|
3024 if (r->connection->timedout) {
|
|
|
3025 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
3026
|
|
|
3027 if (clcf->reset_timedout_connection) {
|
|
58
|
3028 linger.l_onoff = 1;
|
|
|
3029 linger.l_linger = 0;
|
|
0
|
3030
|
|
|
3031 if (setsockopt(r->connection->fd, SOL_SOCKET, SO_LINGER,
|
|
58
|
3032 (const void *) &linger, sizeof(struct linger)) == -1)
|
|
0
|
3033 {
|
|
|
3034 ngx_log_error(NGX_LOG_ALERT, log, ngx_socket_errno,
|
|
|
3035 "setsockopt(SO_LINGER) failed");
|
|
|
3036 }
|
|
|
3037 }
|
|
|
3038 }
|
|
|
3039
|
|
58
|
3040 /* the various request strings were allocated from r->pool */
|
|
0
|
3041 ctx = log->data;
|
|
10
|
3042 ctx->request = NULL;
|
|
0
|
3043
|
|
|
3044 r->request_line.len = 0;
|
|
|
3045
|
|
132
|
3046 r->connection->destroyed = 1;
|
|
|
3047
|
|
0
|
3048 ngx_destroy_pool(r->pool);
|
|
|
3049 }
|
|
|
3050
|
|
|
3051
|
|
80
|
3052 static void
|
|
412
|
3053 ngx_http_log_request(ngx_http_request_t *r)
|
|
|
3054 {
|
|
|
3055 ngx_uint_t i, n;
|
|
|
3056 ngx_http_handler_pt *log_handler;
|
|
|
3057 ngx_http_core_main_conf_t *cmcf;
|
|
|
3058
|
|
|
3059 cmcf = ngx_http_get_module_main_conf(r, ngx_http_core_module);
|
|
|
3060
|
|
|
3061 log_handler = cmcf->phases[NGX_HTTP_LOG_PHASE].handlers.elts;
|
|
|
3062 n = cmcf->phases[NGX_HTTP_LOG_PHASE].handlers.nelts;
|
|
|
3063
|
|
|
3064 for (i = 0; i < n; i++) {
|
|
|
3065 log_handler[i](r);
|
|
|
3066 }
|
|
|
3067 }
|
|
|
3068
|
|
|
3069
|
|
|
3070 static void
|
|
50
|
3071 ngx_http_close_connection(ngx_connection_t *c)
|
|
0
|
3072 {
|
|
28
|
3073 ngx_pool_t *pool;
|
|
|
3074
|
|
0
|
3075 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
|
3076 "close http connection: %d", c->fd);
|
|
|
3077
|
|
88
|
3078 #if (NGX_HTTP_SSL)
|
|
2
|
3079
|
|
|
3080 if (c->ssl) {
|
|
|
3081 if (ngx_ssl_shutdown(c) == NGX_AGAIN) {
|
|
126
|
3082 c->ssl->handler = ngx_http_close_connection;
|
|
2
|
3083 return;
|
|
|
3084 }
|
|
|
3085 }
|
|
|
3086
|
|
|
3087 #endif
|
|
|
3088
|
|
0
|
3089 #if (NGX_STAT_STUB)
|
|
502
|
3090 (void) ngx_atomic_fetch_add(ngx_stat_active, -1);
|
|
0
|
3091 #endif
|
|
|
3092
|
|
132
|
3093 c->destroyed = 1;
|
|
|
3094
|
|
28
|
3095 pool = c->pool;
|
|
|
3096
|
|
0
|
3097 ngx_close_connection(c);
|
|
28
|
3098
|
|
50
|
3099 ngx_destroy_pool(pool);
|
|
0
|
3100 }
|
|
|
3101
|
|
|
3102
|
|
50
|
3103 static u_char *
|
|
|
3104 ngx_http_log_error(ngx_log_t *log, u_char *buf, size_t len)
|
|
0
|
3105 {
|
|
32
|
3106 u_char *p;
|
|
54
|
3107 ngx_http_request_t *r;
|
|
32
|
3108 ngx_http_log_ctx_t *ctx;
|
|
10
|
3109
|
|
32
|
3110 if (log->action) {
|
|
58
|
3111 p = ngx_snprintf(buf, len, " while %s", log->action);
|
|
10
|
3112 len -= p - buf;
|
|
54
|
3113 buf = p;
|
|
10
|
3114 }
|
|
|
3115
|
|
58
|
3116 ctx = log->data;
|
|
|
3117
|
|
362
|
3118 p = ngx_snprintf(buf, len, ", client: %V", &ctx->connection->addr_text);
|
|
58
|
3119 len -= p - buf;
|
|
54
|
3120
|
|
|
3121 r = ctx->request;
|
|
|
3122
|
|
58
|
3123 if (r) {
|
|
214
|
3124 return r->log_handler(r, ctx->current_request, p, len);
|
|
362
|
3125
|
|
|
3126 } else {
|
|
|
3127 p = ngx_snprintf(p, len, ", server: %V",
|
|
|
3128 &ctx->connection->listening->addr_text);
|
|
0
|
3129 }
|
|
10
|
3130
|
|
58
|
3131 return p;
|
|
|
3132 }
|
|
|
3133
|
|
|
3134
|
|
|
3135 static u_char *
|
|
214
|
3136 ngx_http_log_error_handler(ngx_http_request_t *r, ngx_http_request_t *sr,
|
|
|
3137 u_char *buf, size_t len)
|
|
58
|
3138 {
|
|
362
|
3139 char *uri_separator;
|
|
|
3140 u_char *p;
|
|
|
3141 ngx_http_upstream_t *u;
|
|
|
3142 ngx_http_core_srv_conf_t *cscf;
|
|
|
3143
|
|
|
3144 cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
|
|
|
3145
|
|
|
3146 p = ngx_snprintf(buf, len, ", server: %V", &cscf->server_name);
|
|
|
3147 len -= p - buf;
|
|
|
3148 buf = p;
|
|
52
|
3149
|
|
348
|
3150 if (r->request_line.data == NULL && r->request_start) {
|
|
|
3151 for (p = r->request_start; p < r->header_in->last; p++) {
|
|
|
3152 if (*p == CR || *p == LF) {
|
|
|
3153 break;
|
|
|
3154 }
|
|
|
3155 }
|
|
|
3156
|
|
|
3157 r->request_line.len = p - r->request_start;
|
|
|
3158 r->request_line.data = r->request_start;
|
|
|
3159 }
|
|
|
3160
|
|
|
3161 if (r->request_line.len) {
|
|
|
3162 p = ngx_snprintf(buf, len, ", request: \"%V\"", &r->request_line);
|
|
54
|
3163 len -= p - buf;
|
|
|
3164 buf = p;
|
|
10
|
3165 }
|
|
|
3166
|
|
214
|
3167 if (r != sr) {
|
|
|
3168 p = ngx_snprintf(buf, len, ", subrequest: \"%V\"", &sr->uri);
|
|
|
3169 len -= p - buf;
|
|
|
3170 buf = p;
|
|
|
3171 }
|
|
|
3172
|
|
|
3173 u = sr->upstream;
|
|
|
3174
|
|
260
|
3175 if (u && u->peer.name) {
|
|
|
3176
|
|
|
3177 uri_separator = "";
|
|
|
3178
|
|
|
3179 #if (NGX_HAVE_UNIX_DOMAIN)
|
|
|
3180 if (u->peer.sockaddr && u->peer.sockaddr->sa_family == AF_UNIX) {
|
|
|
3181 uri_separator = ":";
|
|
|
3182 }
|
|
|
3183 #endif
|
|
214
|
3184
|
|
|
3185 p = ngx_snprintf(buf, len, ", upstream: \"%V%V%s%V\"",
|
|
348
|
3186 &u->schema, u->peer.name,
|
|
260
|
3187 uri_separator, &u->uri);
|
|
214
|
3188 len -= p - buf;
|
|
|
3189 buf = p;
|
|
|
3190 }
|
|
|
3191
|
|
54
|
3192 if (r->headers_in.host) {
|
|
|
3193 p = ngx_snprintf(buf, len, ", host: \"%V\"",
|
|
|
3194 &r->headers_in.host->value);
|
|
|
3195 len -= p - buf;
|
|
|
3196 buf = p;
|
|
|
3197 }
|
|
|
3198
|
|
|
3199 if (r->headers_in.referer) {
|
|
|
3200 p = ngx_snprintf(buf, len, ", referrer: \"%V\"",
|
|
|
3201 &r->headers_in.referer->value);
|
|
|
3202 buf = p;
|
|
|
3203 }
|
|
|
3204
|
|
|
3205 return buf;
|
|
|
3206 }
|
