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0
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1
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2 /*
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3 * Copyright (C) Igor Sysoev
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4 */
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5
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6
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7 #include <ngx_config.h>
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8 #include <ngx_core.h>
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9 #include <ngx_http.h>
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10
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11
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12 static void ngx_http_init_request(ngx_event_t *ev);
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13 static void ngx_http_process_request_line(ngx_event_t *rev);
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14 static void ngx_http_process_request_headers(ngx_event_t *rev);
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15 static ssize_t ngx_http_read_request_header(ngx_http_request_t *r);
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16 static ngx_int_t ngx_http_alloc_large_header_buffer(ngx_http_request_t *r,
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50
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17 ngx_uint_t request_line);
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58
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18
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19 static ngx_int_t ngx_http_process_header_line(ngx_http_request_t *r,
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20 ngx_table_elt_t *h, ngx_uint_t offset);
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72
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21 static ngx_int_t ngx_http_process_unique_header_line(ngx_http_request_t *r,
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22 ngx_table_elt_t *h, ngx_uint_t offset);
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376
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23 static ngx_int_t ngx_http_process_host(ngx_http_request_t *r,
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24 ngx_table_elt_t *h, ngx_uint_t offset);
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336
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25 static ngx_int_t ngx_http_process_connection(ngx_http_request_t *r,
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26 ngx_table_elt_t *h, ngx_uint_t offset);
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376
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27 static ngx_int_t ngx_http_process_user_agent(ngx_http_request_t *r,
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28 ngx_table_elt_t *h, ngx_uint_t offset);
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58
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29 static ngx_int_t ngx_http_process_cookie(ngx_http_request_t *r,
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30 ngx_table_elt_t *h, ngx_uint_t offset);
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31
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0
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32 static ngx_int_t ngx_http_process_request_header(ngx_http_request_t *r);
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308
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33 static void ngx_http_process_request(ngx_http_request_t *r);
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530
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34 static ssize_t ngx_http_validate_host(ngx_http_request_t *r, u_char **host,
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35 size_t len, ngx_uint_t alloc);
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376
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36 static ngx_int_t ngx_http_find_virtual_server(ngx_http_request_t *r,
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37 u_char *host, size_t len);
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0
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38
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58
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39 static void ngx_http_request_handler(ngx_event_t *ev);
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518
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40 static void ngx_http_terminate_request(ngx_http_request_t *r, ngx_int_t rc);
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41 static void ngx_http_terminate_handler(ngx_http_request_t *r);
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42 static void ngx_http_finalize_connection(ngx_http_request_t *r);
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74
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43 static ngx_int_t ngx_http_set_write_handler(ngx_http_request_t *r);
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58
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44 static void ngx_http_writer(ngx_http_request_t *r);
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426
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45 static void ngx_http_request_finalizer(ngx_http_request_t *r);
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58
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46
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0
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47 static void ngx_http_set_keepalive(ngx_http_request_t *r);
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48 static void ngx_http_keepalive_handler(ngx_event_t *ev);
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49 static void ngx_http_set_lingering_close(ngx_http_request_t *r);
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50 static void ngx_http_lingering_close_handler(ngx_event_t *ev);
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162
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51 static ngx_int_t ngx_http_post_action(ngx_http_request_t *r);
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80
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52 static void ngx_http_close_request(ngx_http_request_t *r, ngx_int_t error);
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518
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53 static void ngx_http_free_request(ngx_http_request_t *r, ngx_int_t error);
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412
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54 static void ngx_http_log_request(ngx_http_request_t *r);
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80
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55 static void ngx_http_close_connection(ngx_connection_t *c);
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0
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56
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32
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57 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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58 static u_char *ngx_http_log_error_handler(ngx_http_request_t *r,
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59 ngx_http_request_t *sr, u_char *buf, size_t len);
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0
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60
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88
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61 #if (NGX_HTTP_SSL)
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62 static void ngx_http_ssl_handshake(ngx_event_t *rev);
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96
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63 static void ngx_http_ssl_handshake_handler(ngx_connection_t *c);
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88
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64 #endif
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65
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0
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66
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54
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67 static char *ngx_http_client_errors[] = {
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68
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69 /* NGX_HTTP_PARSE_INVALID_METHOD */
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70 "client sent invalid method",
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71
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72 /* NGX_HTTP_PARSE_INVALID_REQUEST */
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73 "client sent invalid request",
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74
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75 /* NGX_HTTP_PARSE_INVALID_09_METHOD */
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76 "client sent invalid method in HTTP/0.9 request"
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0
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77 };
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78
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79
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80 ngx_http_header_t ngx_http_headers_in[] = {
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400
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81 { ngx_string("Host"), offsetof(ngx_http_headers_in_t, host),
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82 ngx_http_process_host },
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83
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84 { ngx_string("Connection"), offsetof(ngx_http_headers_in_t, connection),
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85 ngx_http_process_connection },
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58
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86
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0
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87 { ngx_string("If-Modified-Since"),
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58
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88 offsetof(ngx_http_headers_in_t, if_modified_since),
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332
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89 ngx_http_process_unique_header_line },
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58
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90
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400
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91 { ngx_string("User-Agent"), offsetof(ngx_http_headers_in_t, user_agent),
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92 ngx_http_process_user_agent },
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58
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93
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94 { ngx_string("Referer"), offsetof(ngx_http_headers_in_t, referer),
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95 ngx_http_process_header_line },
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96
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0
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97 { ngx_string("Content-Length"),
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58
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98 offsetof(ngx_http_headers_in_t, content_length),
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72
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99 ngx_http_process_unique_header_line },
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58
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100
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28
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101 { ngx_string("Content-Type"),
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58
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102 offsetof(ngx_http_headers_in_t, content_type),
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103 ngx_http_process_header_line },
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104
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105 { ngx_string("Range"), offsetof(ngx_http_headers_in_t, range),
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106 ngx_http_process_header_line },
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107
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346
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108 { ngx_string("If-Range"),
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109 offsetof(ngx_http_headers_in_t, if_range),
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110 ngx_http_process_unique_header_line },
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111
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130
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112 { ngx_string("Transfer-Encoding"),
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113 offsetof(ngx_http_headers_in_t, transfer_encoding),
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114 ngx_http_process_header_line },
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115
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384
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116 { ngx_string("Expect"),
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117 offsetof(ngx_http_headers_in_t, expect),
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118 ngx_http_process_unique_header_line },
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119
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0
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120 #if (NGX_HTTP_GZIP)
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121 { ngx_string("Accept-Encoding"),
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58
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122 offsetof(ngx_http_headers_in_t, accept_encoding),
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123 ngx_http_process_header_line },
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124
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125 { ngx_string("Via"), offsetof(ngx_http_headers_in_t, via),
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126 ngx_http_process_header_line },
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0
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127 #endif
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128
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129 { ngx_string("Authorization"),
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58
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130 offsetof(ngx_http_headers_in_t, authorization),
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72
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131 ngx_http_process_unique_header_line },
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58
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132
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133 { ngx_string("Keep-Alive"), offsetof(ngx_http_headers_in_t, keep_alive),
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134 ngx_http_process_header_line },
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0
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135
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510
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136 #if (NGX_HTTP_PROXY || NGX_HTTP_REALIP || NGX_HTTP_GEO)
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0
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137 { ngx_string("X-Forwarded-For"),
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58
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138 offsetof(ngx_http_headers_in_t, x_forwarded_for),
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139 ngx_http_process_header_line },
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0
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140 #endif
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28
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141
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122
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142 #if (NGX_HTTP_REALIP)
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143 { ngx_string("X-Real-IP"),
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144 offsetof(ngx_http_headers_in_t, x_real_ip),
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145 ngx_http_process_header_line },
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146 #endif
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147
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38
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148 #if (NGX_HTTP_HEADERS)
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58
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149 { ngx_string("Accept"), offsetof(ngx_http_headers_in_t, accept),
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150 ngx_http_process_header_line },
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151
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38
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152 { ngx_string("Accept-Language"),
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58
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153 offsetof(ngx_http_headers_in_t, accept_language),
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154 ngx_http_process_header_line },
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38
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155 #endif
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156
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186
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157 #if (NGX_HTTP_DAV)
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158 { ngx_string("Depth"), offsetof(ngx_http_headers_in_t, depth),
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159 ngx_http_process_header_line },
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160
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161 { ngx_string("Destination"), offsetof(ngx_http_headers_in_t, destination),
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162 ngx_http_process_header_line },
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230
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163
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276
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164 { ngx_string("Overwrite"), offsetof(ngx_http_headers_in_t, overwrite),
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165 ngx_http_process_header_line },
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166
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230
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167 { ngx_string("Date"), offsetof(ngx_http_headers_in_t, date),
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168 ngx_http_process_header_line },
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186
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169 #endif
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170
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58
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171 { ngx_string("Cookie"), 0, ngx_http_process_cookie },
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172
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173 { ngx_null_string, 0, NULL }
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0
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174 };
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175
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176
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50
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177 void
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178 ngx_http_init_connection(ngx_connection_t *c)
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0
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179 {
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180 ngx_event_t *rev;
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181 ngx_http_log_ctx_t *ctx;
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182
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50
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183 ctx = ngx_palloc(c->pool, sizeof(ngx_http_log_ctx_t));
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184 if (ctx == NULL) {
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0
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185 ngx_http_close_connection(c);
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186 return;
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187 }
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188
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362
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189 ctx->connection = c;
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10
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190 ctx->request = NULL;
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214
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191 ctx->current_request = NULL;
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32
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192
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193 c->log->connection = c->number;
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194 c->log->handler = ngx_http_log_error;
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0
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195 c->log->data = ctx;
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32
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196 c->log->action = "reading client request line";
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197
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0
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198 c->log_error = NGX_ERROR_INFO;
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199
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200 rev = c->read;
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58
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201 rev->handler = ngx_http_init_request;
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118
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202 c->write->handler = ngx_http_empty_handler;
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0
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203
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116
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204 #if (NGX_STAT_STUB)
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502
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205 (void) ngx_atomic_fetch_add(ngx_stat_reading, 1);
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116
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206 #endif
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207
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0
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208 if (rev->ready) {
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209 /* the deferred accept(), rtsig, aio, iocp */
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210
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160
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211 if (ngx_use_accept_mutex) {
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112
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212 ngx_post_event(rev, &ngx_posted_events);
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0
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213 return;
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214 }
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215
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216 ngx_http_init_request(rev);
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217 return;
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218 }
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219
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220 ngx_add_timer(rev, c->listening->post_accept_timeout);
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221
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430
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222 if (ngx_handle_read_event(rev, 0) != NGX_OK) {
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116
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223 #if (NGX_STAT_STUB)
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502
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224 (void) ngx_atomic_fetch_add(ngx_stat_reading, -1);
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116
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225 #endif
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0
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226 ngx_http_close_connection(c);
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227 return;
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228 }
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229 }
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230
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231
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190
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232 static void
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233 ngx_http_init_request(ngx_event_t *rev)
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0
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234 {
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298
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235 ngx_time_t *tp;
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122
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236 ngx_uint_t i;
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237 ngx_connection_t *c;
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238 ngx_http_request_t *r;
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448
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239 struct sockaddr_in *sin;
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240 ngx_http_port_t *port;
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241 ngx_http_in_addr_t *addr;
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122
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242 ngx_http_log_ctx_t *ctx;
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448
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243 ngx_http_addr_conf_t *addr_conf;
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122
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244 ngx_http_connection_t *hc;
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245 ngx_http_core_srv_conf_t *cscf;
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246 ngx_http_core_loc_conf_t *clcf;
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247 ngx_http_core_main_conf_t *cmcf;
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448
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248 #if (NGX_HAVE_INET6)
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249 struct sockaddr_in6 *sin6;
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250 ngx_http_in6_addr_t *addr6;
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251 #endif
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0
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252
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116
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253 #if (NGX_STAT_STUB)
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502
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254 (void) ngx_atomic_fetch_add(ngx_stat_reading, -1);
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116
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255 #endif
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256
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0
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257 c = rev->data;
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258
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259 if (rev->timedout) {
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260 ngx_log_error(NGX_LOG_INFO, c->log, NGX_ETIMEDOUT, "client timed out");
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261
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262 ngx_http_close_connection(c);
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263 return;
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264 }
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265
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496
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266 c->requests++;
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267
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0
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268 hc = c->data;
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269
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116
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270 if (hc == NULL) {
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50
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271 hc = ngx_pcalloc(c->pool, sizeof(ngx_http_connection_t));
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272 if (hc == NULL) {
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0
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273 ngx_http_close_connection(c);
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274 return;
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275 }
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276 }
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277
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278 r = hc->request;
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279
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280 if (r) {
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281 ngx_memzero(r, sizeof(ngx_http_request_t));
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282
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283 r->pipeline = hc->pipeline;
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284
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285 if (hc->nbusy) {
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286 r->header_in = hc->busy[0];
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287 }
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288
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289 } else {
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50
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290 r = ngx_pcalloc(c->pool, sizeof(ngx_http_request_t));
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291 if (r == NULL) {
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0
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292 ngx_http_close_connection(c);
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293 return;
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294 }
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295
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296 hc->request = r;
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297 }
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298
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299 c->data = r;
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300 r->http_connection = hc;
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301
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302 c->sent = 0;
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303 r->signature = NGX_HTTP_MODULE;
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304
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305 /* find the server configuration for the address:port */
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306
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448
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307 port = c->listening->servers;
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308
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362
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309 r->connection = c;
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310
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448
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311 if (port->naddrs > 1) {
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0
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312
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313 /*
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448
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314 * there are several addresses on this port and one of them
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315 * is an "*:port" wildcard so getsockname() in ngx_http_server_addr()
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316 * is required to determine a server address
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0
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317 */
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318
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492
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319 if (ngx_connection_local_sockaddr(c, NULL, 0) != NGX_OK) {
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448
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320 ngx_http_close_connection(c);
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321 return;
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322 }
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323
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324 switch (c->local_sockaddr->sa_family) {
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325
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326 #if (NGX_HAVE_INET6)
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327 case AF_INET6:
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328 sin6 = (struct sockaddr_in6 *) c->local_sockaddr;
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329
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492
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330 addr6 = port->addrs;
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448
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331
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332 /* the last address is "*" */
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333
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334 for (i = 0; i < port->naddrs - 1; i++) {
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335 if (ngx_memcmp(&addr6[i].addr6, &sin6->sin6_addr, 16) == 0) {
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336 break;
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337 }
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338 }
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339
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340 addr_conf = &addr6[i].conf;
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341
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342 break;
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0
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343 #endif
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448
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344
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345 default: /* AF_INET */
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346 sin = (struct sockaddr_in *) c->local_sockaddr;
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347
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348 addr = port->addrs;
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349
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350 /* the last address is "*" */
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351
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352 for (i = 0; i < port->naddrs - 1; i++) {
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353 if (addr[i].addr == sin->sin_addr.s_addr) {
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354 break;
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355 }
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0
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356 }
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448
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357
|
|
|
358 addr_conf = &addr[i].conf;
|
|
|
359
|
|
|
360 break;
|
|
0
|
361 }
|
|
|
362
|
|
|
363 } else {
|
|
448
|
364
|
|
|
365 switch (c->local_sockaddr->sa_family) {
|
|
|
366
|
|
|
367 #if (NGX_HAVE_INET6)
|
|
|
368 case AF_INET6:
|
|
492
|
369 addr6 = port->addrs;
|
|
448
|
370 addr_conf = &addr6[0].conf;
|
|
|
371 break;
|
|
|
372 #endif
|
|
|
373
|
|
|
374 default: /* AF_INET */
|
|
|
375 addr = port->addrs;
|
|
|
376 addr_conf = &addr[0].conf;
|
|
|
377 break;
|
|
|
378 }
|
|
0
|
379 }
|
|
|
380
|
|
478
|
381 r->virtual_names = addr_conf->virtual_names;
|
|
|
382
|
|
0
|
383 /* the default server configuration for the address:port */
|
|
538
|
384 cscf = addr_conf->default_server;
|
|
0
|
385
|
|
|
386 r->main_conf = cscf->ctx->main_conf;
|
|
|
387 r->srv_conf = cscf->ctx->srv_conf;
|
|
|
388 r->loc_conf = cscf->ctx->loc_conf;
|
|
|
389
|
|
58
|
390 rev->handler = ngx_http_process_request_line;
|
|
510
|
391 r->read_event_handler = ngx_http_block_reading;
|
|
0
|
392
|
|
|
393 #if (NGX_HTTP_SSL)
|
|
|
394
|
|
356
|
395 {
|
|
|
396 ngx_http_ssl_srv_conf_t *sscf;
|
|
|
397
|
|
0
|
398 sscf = ngx_http_get_module_srv_conf(r, ngx_http_ssl_module);
|
|
448
|
399 if (sscf->enable || addr_conf->ssl) {
|
|
0
|
400
|
|
|
401 if (c->ssl == NULL) {
|
|
404
|
402
|
|
|
403 c->log->action = "SSL handshaking";
|
|
|
404
|
|
448
|
405 if (addr_conf->ssl && sscf->ssl.ctx == NULL) {
|
|
404
|
406 ngx_log_error(NGX_LOG_ERR, c->log, 0,
|
|
|
407 "no \"ssl_certificate\" is defined "
|
|
|
408 "in server listening on SSL port");
|
|
|
409 ngx_http_close_connection(c);
|
|
|
410 return;
|
|
|
411 }
|
|
|
412
|
|
96
|
413 if (ngx_ssl_create_connection(&sscf->ssl, c, NGX_SSL_BUFFER)
|
|
454
|
414 != NGX_OK)
|
|
0
|
415 {
|
|
|
416 ngx_http_close_connection(c);
|
|
|
417 return;
|
|
|
418 }
|
|
|
419
|
|
58
|
420 rev->handler = ngx_http_ssl_handshake;
|
|
0
|
421 }
|
|
|
422
|
|
62
|
423 r->main_filter_need_in_memory = 1;
|
|
0
|
424 }
|
|
356
|
425 }
|
|
0
|
426
|
|
|
427 #endif
|
|
|
428
|
|
|
429 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
484
|
430 c->log->file = clcf->error_log->file;
|
|
0
|
431 if (!(c->log->log_level & NGX_LOG_DEBUG_CONNECTION)) {
|
|
484
|
432 c->log->log_level = clcf->error_log->log_level;
|
|
0
|
433 }
|
|
|
434
|
|
|
435 if (c->buffer == NULL) {
|
|
|
436 c->buffer = ngx_create_temp_buf(c->pool,
|
|
|
437 cscf->client_header_buffer_size);
|
|
|
438 if (c->buffer == NULL) {
|
|
|
439 ngx_http_close_connection(c);
|
|
|
440 return;
|
|
|
441 }
|
|
|
442 }
|
|
|
443
|
|
|
444 if (r->header_in == NULL) {
|
|
|
445 r->header_in = c->buffer;
|
|
|
446 }
|
|
|
447
|
|
50
|
448 r->pool = ngx_create_pool(cscf->request_pool_size, c->log);
|
|
|
449 if (r->pool == NULL) {
|
|
0
|
450 ngx_http_close_connection(c);
|
|
|
451 return;
|
|
|
452 }
|
|
|
453
|
|
|
454
|
|
|
455 if (ngx_list_init(&r->headers_out.headers, r->pool, 20,
|
|
130
|
456 sizeof(ngx_table_elt_t))
|
|
454
|
457 != NGX_OK)
|
|
0
|
458 {
|
|
496
|
459 ngx_destroy_pool(r->pool);
|
|
|
460 ngx_http_close_connection(c);
|
|
0
|
461 return;
|
|
|
462 }
|
|
|
463
|
|
|
464 r->ctx = ngx_pcalloc(r->pool, sizeof(void *) * ngx_http_max_module);
|
|
|
465 if (r->ctx == NULL) {
|
|
496
|
466 ngx_destroy_pool(r->pool);
|
|
|
467 ngx_http_close_connection(c);
|
|
0
|
468 return;
|
|
|
469 }
|
|
|
470
|
|
122
|
471 cmcf = ngx_http_get_module_main_conf(r, ngx_http_core_module);
|
|
|
472
|
|
|
473 r->variables = ngx_pcalloc(r->pool, cmcf->variables.nelts
|
|
|
474 * sizeof(ngx_http_variable_value_t));
|
|
|
475 if (r->variables == NULL) {
|
|
496
|
476 ngx_destroy_pool(r->pool);
|
|
|
477 ngx_http_close_connection(c);
|
|
122
|
478 return;
|
|
|
479 }
|
|
|
480
|
|
0
|
481 c->single_connection = 1;
|
|
132
|
482 c->destroyed = 0;
|
|
|
483
|
|
102
|
484 r->main = r;
|
|
518
|
485 r->count = 1;
|
|
102
|
486
|
|
298
|
487 tp = ngx_timeofday();
|
|
|
488 r->start_sec = tp->sec;
|
|
|
489 r->start_msec = tp->msec;
|
|
46
|
490
|
|
180
|
491 r->method = NGX_HTTP_UNKNOWN;
|
|
|
492
|
|
0
|
493 r->headers_in.content_length_n = -1;
|
|
|
494 r->headers_in.keep_alive_n = -1;
|
|
|
495 r->headers_out.content_length_n = -1;
|
|
|
496 r->headers_out.last_modified_time = -1;
|
|
|
497
|
|
226
|
498 r->uri_changes = NGX_HTTP_MAX_URI_CHANGES + 1;
|
|
|
499 r->subrequests = NGX_HTTP_MAX_SUBREQUESTS + 1;
|
|
|
500
|
|
0
|
501 r->http_state = NGX_HTTP_READING_REQUEST_STATE;
|
|
|
502
|
|
54
|
503 ctx = c->log->data;
|
|
|
504 ctx->request = r;
|
|
214
|
505 ctx->current_request = r;
|
|
58
|
506 r->log_handler = ngx_http_log_error_handler;
|
|
54
|
507
|
|
0
|
508 #if (NGX_STAT_STUB)
|
|
502
|
509 (void) ngx_atomic_fetch_add(ngx_stat_reading, 1);
|
|
26
|
510 r->stat_reading = 1;
|
|
502
|
511 (void) ngx_atomic_fetch_add(ngx_stat_requests, 1);
|
|
0
|
512 #endif
|
|
|
513
|
|
58
|
514 rev->handler(rev);
|
|
0
|
515 }
|
|
|
516
|
|
|
517
|
|
|
518 #if (NGX_HTTP_SSL)
|
|
|
519
|
|
50
|
520 static void
|
|
|
521 ngx_http_ssl_handshake(ngx_event_t *rev)
|
|
0
|
522 {
|
|
10
|
523 u_char buf[1];
|
|
|
524 ssize_t n;
|
|
0
|
525 ngx_int_t rc;
|
|
|
526 ngx_connection_t *c;
|
|
|
527 ngx_http_request_t *r;
|
|
|
528
|
|
|
529 c = rev->data;
|
|
|
530 r = c->data;
|
|
|
531
|
|
|
532 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, rev->log, 0,
|
|
|
533 "http check ssl handshake");
|
|
|
534
|
|
|
535 if (rev->timedout) {
|
|
54
|
536 ngx_log_error(NGX_LOG_INFO, c->log, NGX_ETIMEDOUT, "client timed out");
|
|
|
537 c->timedout = 1;
|
|
|
538 ngx_http_close_request(r, NGX_HTTP_REQUEST_TIME_OUT);
|
|
0
|
539 return;
|
|
|
540 }
|
|
|
541
|
|
132
|
542 n = recv(c->fd, (char *) buf, 1, MSG_PEEK);
|
|
0
|
543
|
|
|
544 if (n == -1 && ngx_socket_errno == NGX_EAGAIN) {
|
|
364
|
545
|
|
|
546 if (!rev->timer_set) {
|
|
|
547 ngx_add_timer(rev, c->listening->post_accept_timeout);
|
|
|
548 }
|
|
|
549
|
|
430
|
550 if (ngx_handle_read_event(rev, 0) != NGX_OK) {
|
|
364
|
551 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
552 }
|
|
|
553
|
|
0
|
554 return;
|
|
|
555 }
|
|
|
556
|
|
|
557 if (n == 1) {
|
|
|
558 if (buf[0] == 0x80 /* SSLv2 */ || buf[0] == 0x16 /* SSLv3/TLSv1 */) {
|
|
|
559 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, rev->log, 0,
|
|
10
|
560 "https ssl handshake: 0x%02Xd", buf[0]);
|
|
0
|
561
|
|
|
562 rc = ngx_ssl_handshake(c);
|
|
|
563
|
|
96
|
564 if (rc == NGX_AGAIN) {
|
|
362
|
565
|
|
|
566 if (!rev->timer_set) {
|
|
|
567 ngx_add_timer(rev, c->listening->post_accept_timeout);
|
|
|
568 }
|
|
|
569
|
|
96
|
570 c->ssl->handler = ngx_http_ssl_handshake_handler;
|
|
0
|
571 return;
|
|
|
572 }
|
|
|
573
|
|
96
|
574 ngx_http_ssl_handshake_handler(c);
|
|
|
575
|
|
|
576 return;
|
|
0
|
577
|
|
|
578 } else {
|
|
|
579 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, rev->log, 0,
|
|
|
580 "plain http");
|
|
|
581
|
|
|
582 r->plain_http = 1;
|
|
|
583 }
|
|
|
584 }
|
|
|
585
|
|
404
|
586 c->log->action = "reading client request line";
|
|
|
587
|
|
58
|
588 rev->handler = ngx_http_process_request_line;
|
|
0
|
589 ngx_http_process_request_line(rev);
|
|
|
590 }
|
|
|
591
|
|
96
|
592
|
|
|
593 static void
|
|
|
594 ngx_http_ssl_handshake_handler(ngx_connection_t *c)
|
|
|
595 {
|
|
|
596 ngx_http_request_t *r;
|
|
|
597
|
|
|
598 if (c->ssl->handshaked) {
|
|
|
599
|
|
|
600 /*
|
|
|
601 * The majority of browsers do not send the "close notify" alert.
|
|
|
602 * Among them are MSIE, old Mozilla, Netscape 4, Konqueror,
|
|
|
603 * and Links. And what is more, MSIE ignores the server's alert.
|
|
|
604 *
|
|
|
605 * Opera and recent Mozilla send the alert.
|
|
|
606 */
|
|
|
607
|
|
|
608 c->ssl->no_wait_shutdown = 1;
|
|
|
609
|
|
|
610 c->read->handler = ngx_http_process_request_line;
|
|
|
611 /* STUB: epoll edge */ c->write->handler = ngx_http_empty_handler;
|
|
|
612
|
|
|
613 ngx_http_process_request_line(c->read);
|
|
|
614
|
|
|
615 return;
|
|
|
616 }
|
|
|
617
|
|
|
618 r = c->data;
|
|
|
619
|
|
|
620 ngx_http_close_request(r, NGX_HTTP_BAD_REQUEST);
|
|
|
621
|
|
|
622 return;
|
|
|
623 }
|
|
|
624
|
|
306
|
625 #ifdef SSL_CTRL_SET_TLSEXT_HOSTNAME
|
|
|
626
|
|
|
627 int
|
|
|
628 ngx_http_ssl_servername(ngx_ssl_conn_t *ssl_conn, int *ad, void *arg)
|
|
|
629 {
|
|
400
|
630 size_t len;
|
|
530
|
631 u_char *host;
|
|
306
|
632 const char *servername;
|
|
|
633 ngx_connection_t *c;
|
|
|
634 ngx_http_request_t *r;
|
|
|
635 ngx_http_ssl_srv_conf_t *sscf;
|
|
|
636
|
|
|
637 servername = SSL_get_servername(ssl_conn, TLSEXT_NAMETYPE_host_name);
|
|
|
638
|
|
|
639 if (servername == NULL) {
|
|
|
640 return SSL_TLSEXT_ERR_NOACK;
|
|
|
641 }
|
|
|
642
|
|
|
643 c = ngx_ssl_get_connection(ssl_conn);
|
|
|
644
|
|
|
645 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
|
646 "SSL server name: \"%s\"", servername);
|
|
|
647
|
|
400
|
648 len = ngx_strlen(servername);
|
|
|
649
|
|
|
650 if (len == 0) {
|
|
|
651 return SSL_TLSEXT_ERR_NOACK;
|
|
|
652 }
|
|
|
653
|
|
306
|
654 r = c->data;
|
|
|
655
|
|
530
|
656 host = (u_char *) servername;
|
|
|
657
|
|
|
658 len = ngx_http_validate_host(r, &host, len, 1);
|
|
|
659
|
|
|
660 if (len <= 0) {
|
|
|
661 return SSL_TLSEXT_ERR_NOACK;
|
|
|
662 }
|
|
|
663
|
|
|
664 if (ngx_http_find_virtual_server(r, host, len) != NGX_OK) {
|
|
306
|
665 return SSL_TLSEXT_ERR_NOACK;
|
|
|
666 }
|
|
|
667
|
|
|
668 sscf = ngx_http_get_module_srv_conf(r, ngx_http_ssl_module);
|
|
|
669
|
|
|
670 SSL_set_SSL_CTX(ssl_conn, sscf->ssl.ctx);
|
|
|
671
|
|
|
672 return SSL_TLSEXT_ERR_OK;
|
|
|
673 }
|
|
|
674
|
|
|
675 #endif
|
|
96
|
676
|
|
0
|
677 #endif
|
|
|
678
|
|
|
679
|
|
50
|
680 static void
|
|
|
681 ngx_http_process_request_line(ngx_event_t *rev)
|
|
0
|
682 {
|
|
530
|
683 u_char *host;
|
|
342
|
684 ssize_t n;
|
|
|
685 ngx_int_t rc, rv;
|
|
|
686 ngx_connection_t *c;
|
|
|
687 ngx_http_request_t *r;
|
|
|
688 ngx_http_core_srv_conf_t *cscf;
|
|
0
|
689
|
|
|
690 c = rev->data;
|
|
|
691 r = c->data;
|
|
|
692
|
|
|
693 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, rev->log, 0,
|
|
|
694 "http process request line");
|
|
|
695
|
|
|
696 if (rev->timedout) {
|
|
54
|
697 ngx_log_error(NGX_LOG_INFO, c->log, NGX_ETIMEDOUT, "client timed out");
|
|
|
698 c->timedout = 1;
|
|
|
699 ngx_http_close_request(r, NGX_HTTP_REQUEST_TIME_OUT);
|
|
0
|
700 return;
|
|
|
701 }
|
|
|
702
|
|
|
703 rc = NGX_AGAIN;
|
|
|
704
|
|
|
705 for ( ;; ) {
|
|
|
706
|
|
|
707 if (rc == NGX_AGAIN) {
|
|
|
708 n = ngx_http_read_request_header(r);
|
|
|
709
|
|
|
710 if (n == NGX_AGAIN || n == NGX_ERROR) {
|
|
|
711 return;
|
|
|
712 }
|
|
|
713 }
|
|
|
714
|
|
|
715 rc = ngx_http_parse_request_line(r, r->header_in);
|
|
|
716
|
|
|
717 if (rc == NGX_OK) {
|
|
|
718
|
|
|
719 /* the request line has been parsed successfully */
|
|
|
720
|
|
10
|
721 r->request_line.len = r->request_end - r->request_start;
|
|
|
722 r->request_line.data = r->request_start;
|
|
|
723
|
|
0
|
724
|
|
|
725 if (r->args_start) {
|
|
|
726 r->uri.len = r->args_start - 1 - r->uri_start;
|
|
|
727 } else {
|
|
|
728 r->uri.len = r->uri_end - r->uri_start;
|
|
|
729 }
|
|
|
730
|
|
18
|
731
|
|
2
|
732 if (r->complex_uri || r->quoted_uri) {
|
|
10
|
733
|
|
382
|
734 r->uri.data = ngx_pnalloc(r->pool, r->uri.len + 1);
|
|
50
|
735 if (r->uri.data == NULL) {
|
|
10
|
736 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
737 return;
|
|
|
738 }
|
|
|
739
|
|
342
|
740 cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
|
|
|
741
|
|
|
742 rc = ngx_http_parse_complex_uri(r, cscf->merge_slashes);
|
|
0
|
743
|
|
54
|
744 if (rc == NGX_HTTP_PARSE_INVALID_REQUEST) {
|
|
|
745 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
|
746 "client sent invalid request");
|
|
|
747 ngx_http_finalize_request(r, NGX_HTTP_BAD_REQUEST);
|
|
0
|
748 return;
|
|
|
749 }
|
|
|
750
|
|
|
751 } else {
|
|
10
|
752 r->uri.data = r->uri_start;
|
|
0
|
753 }
|
|
|
754
|
|
18
|
755
|
|
10
|
756 r->unparsed_uri.len = r->uri_end - r->uri_start;
|
|
|
757 r->unparsed_uri.data = r->uri_start;
|
|
|
758
|
|
0
|
759
|
|
58
|
760 r->method_name.len = r->method_end - r->request_start + 1;
|
|
|
761 r->method_name.data = r->request_line.data;
|
|
0
|
762
|
|
10
|
763
|
|
28
|
764 if (r->http_protocol.data) {
|
|
|
765 r->http_protocol.len = r->request_end - r->http_protocol.data;
|
|
|
766 }
|
|
|
767
|
|
|
768
|
|
0
|
769 if (r->uri_ext) {
|
|
|
770 if (r->args_start) {
|
|
|
771 r->exten.len = r->args_start - 1 - r->uri_ext;
|
|
|
772 } else {
|
|
|
773 r->exten.len = r->uri_end - r->uri_ext;
|
|
|
774 }
|
|
|
775
|
|
10
|
776 r->exten.data = r->uri_ext;
|
|
0
|
777 }
|
|
|
778
|
|
10
|
779
|
|
0
|
780 if (r->args_start && r->uri_end > r->args_start) {
|
|
|
781 r->args.len = r->uri_end - r->args_start;
|
|
10
|
782 r->args.data = r->args_start;
|
|
0
|
783 }
|
|
|
784
|
|
508
|
785 #if (NGX_WIN32)
|
|
|
786 {
|
|
|
787 u_char *p;
|
|
|
788
|
|
|
789 p = r->uri.data + r->uri.len - 1;
|
|
|
790
|
|
562
|
791 if (*p == '.' || *p == ' ') {
|
|
|
792
|
|
|
793 while (--p > r->uri.data && (*p == '.' || *p == ' ')) {
|
|
|
794 /* void */
|
|
|
795 }
|
|
508
|
796
|
|
|
797 r->uri.len = p + 1 - r->uri.data;
|
|
|
798
|
|
|
799 ngx_http_set_exten(r);
|
|
|
800 }
|
|
|
801 }
|
|
|
802 #endif
|
|
10
|
803
|
|
|
804 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
|
805 "http request line: \"%V\"", &r->request_line);
|
|
|
806
|
|
0
|
807 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
10
|
808 "http uri: \"%V\"", &r->uri);
|
|
0
|
809
|
|
|
810 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
10
|
811 "http args: \"%V\"", &r->args);
|
|
0
|
812
|
|
|
813 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
10
|
814 "http exten: \"%V\"", &r->exten);
|
|
|
815
|
|
376
|
816 if (r->host_start && r->host_end) {
|
|
530
|
817
|
|
|
818 host = r->host_start;
|
|
|
819 n = ngx_http_validate_host(r, &host,
|
|
|
820 r->host_end - r->host_start, 0);
|
|
|
821
|
|
|
822 if (n == 0) {
|
|
376
|
823 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
|
824 "client sent invalid host in request line");
|
|
|
825 ngx_http_finalize_request(r, NGX_HTTP_BAD_REQUEST);
|
|
|
826 return;
|
|
|
827 }
|
|
|
828
|
|
530
|
829 if (n < 0) {
|
|
|
830 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
831 return;
|
|
|
832 }
|
|
|
833
|
|
376
|
834 r->headers_in.server.len = n;
|
|
530
|
835 r->headers_in.server.data = host;
|
|
376
|
836 }
|
|
|
837
|
|
0
|
838 if (r->http_version < NGX_HTTP_VERSION_10) {
|
|
376
|
839
|
|
|
840 if (ngx_http_find_virtual_server(r, r->headers_in.server.data,
|
|
|
841 r->headers_in.server.len)
|
|
|
842 == NGX_ERROR)
|
|
|
843 {
|
|
|
844 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
845 return;
|
|
|
846 }
|
|
|
847
|
|
308
|
848 ngx_http_process_request(r);
|
|
0
|
849 return;
|
|
|
850 }
|
|
|
851
|
|
|
852
|
|
|
853 if (ngx_list_init(&r->headers_in.headers, r->pool, 20,
|
|
130
|
854 sizeof(ngx_table_elt_t))
|
|
454
|
855 != NGX_OK)
|
|
0
|
856 {
|
|
|
857 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
858 return;
|
|
|
859 }
|
|
|
860
|
|
|
861
|
|
48
|
862 if (ngx_array_init(&r->headers_in.cookies, r->pool, 2,
|
|
130
|
863 sizeof(ngx_table_elt_t *))
|
|
454
|
864 != NGX_OK)
|
|
0
|
865 {
|
|
|
866 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
867 return;
|
|
|
868 }
|
|
|
869
|
|
32
|
870 c->log->action = "reading client request headers";
|
|
0
|
871
|
|
58
|
872 rev->handler = ngx_http_process_request_headers;
|
|
0
|
873 ngx_http_process_request_headers(rev);
|
|
|
874
|
|
|
875 return;
|
|
54
|
876 }
|
|
|
877
|
|
|
878 if (rc != NGX_AGAIN) {
|
|
0
|
879
|
|
|
880 /* there was error while a request line parsing */
|
|
|
881
|
|
54
|
882 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
|
883 ngx_http_client_errors[rc - NGX_HTTP_CLIENT_ERROR]);
|
|
|
884 ngx_http_finalize_request(r, NGX_HTTP_BAD_REQUEST);
|
|
0
|
885 return;
|
|
|
886 }
|
|
|
887
|
|
|
888 /* NGX_AGAIN: a request line parsing is still incomplete */
|
|
|
889
|
|
|
890 if (r->header_in->pos == r->header_in->end) {
|
|
|
891
|
|
|
892 rv = ngx_http_alloc_large_header_buffer(r, 1);
|
|
|
893
|
|
|
894 if (rv == NGX_ERROR) {
|
|
|
895 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
896 return;
|
|
|
897 }
|
|
|
898
|
|
|
899 if (rv == NGX_DECLINED) {
|
|
54
|
900 r->request_line.len = r->header_in->end - r->request_start;
|
|
|
901 r->request_line.data = r->request_start;
|
|
|
902
|
|
|
903 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
|
904 "client sent too long URI");
|
|
|
905 ngx_http_finalize_request(r, NGX_HTTP_REQUEST_URI_TOO_LARGE);
|
|
0
|
906 return;
|
|
|
907 }
|
|
|
908 }
|
|
|
909 }
|
|
|
910 }
|
|
|
911
|
|
|
912
|
|
50
|
913 static void
|
|
|
914 ngx_http_process_request_headers(ngx_event_t *rev)
|
|
0
|
915 {
|
|
524
|
916 u_char *p;
|
|
|
917 size_t len;
|
|
56
|
918 ssize_t n;
|
|
|
919 ngx_int_t rc, rv;
|
|
58
|
920 ngx_table_elt_t *h;
|
|
56
|
921 ngx_connection_t *c;
|
|
|
922 ngx_http_header_t *hh;
|
|
|
923 ngx_http_request_t *r;
|
|
60
|
924 ngx_http_core_srv_conf_t *cscf;
|
|
56
|
925 ngx_http_core_main_conf_t *cmcf;
|
|
0
|
926
|
|
|
927 c = rev->data;
|
|
|
928 r = c->data;
|
|
|
929
|
|
|
930 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, rev->log, 0,
|
|
|
931 "http process request header line");
|
|
|
932
|
|
|
933 if (rev->timedout) {
|
|
54
|
934 ngx_log_error(NGX_LOG_INFO, c->log, NGX_ETIMEDOUT, "client timed out");
|
|
|
935 c->timedout = 1;
|
|
|
936 ngx_http_close_request(r, NGX_HTTP_REQUEST_TIME_OUT);
|
|
0
|
937 return;
|
|
|
938 }
|
|
|
939
|
|
56
|
940 cmcf = ngx_http_get_module_main_conf(r, ngx_http_core_module);
|
|
60
|
941 cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
|
|
56
|
942
|
|
0
|
943 rc = NGX_AGAIN;
|
|
|
944
|
|
|
945 for ( ;; ) {
|
|
|
946
|
|
|
947 if (rc == NGX_AGAIN) {
|
|
|
948
|
|
|
949 if (r->header_in->pos == r->header_in->end) {
|
|
|
950
|
|
|
951 rv = ngx_http_alloc_large_header_buffer(r, 0);
|
|
|
952
|
|
|
953 if (rv == NGX_ERROR) {
|
|
|
954 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
955 return;
|
|
|
956 }
|
|
|
957
|
|
|
958 if (rv == NGX_DECLINED) {
|
|
524
|
959 p = r->header_name_start;
|
|
|
960
|
|
540
|
961 if (p == NULL) {
|
|
|
962 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
|
963 "client sent too large request");
|
|
|
964 ngx_http_finalize_request(r, NGX_HTTP_BAD_REQUEST);
|
|
|
965 return;
|
|
|
966 }
|
|
|
967
|
|
|
968 len = r->header_in->end - p;
|
|
|
969
|
|
524
|
970 if (len > NGX_MAX_ERROR_STR - 300) {
|
|
|
971 len = NGX_MAX_ERROR_STR - 300;
|
|
|
972 p[len++] = '.'; p[len++] = '.'; p[len++] = '.';
|
|
80
|
973 }
|
|
|
974
|
|
54
|
975 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
524
|
976 "client sent too long header line: \"%*s\"",
|
|
|
977 len, r->header_name_start);
|
|
330
|
978 ngx_http_finalize_request(r, NGX_HTTP_BAD_REQUEST);
|
|
0
|
979 return;
|
|
|
980 }
|
|
|
981 }
|
|
|
982
|
|
|
983 n = ngx_http_read_request_header(r);
|
|
|
984
|
|
|
985 if (n == NGX_AGAIN || n == NGX_ERROR) {
|
|
|
986 return;
|
|
|
987 }
|
|
|
988 }
|
|
|
989
|
|
412
|
990 rc = ngx_http_parse_header_line(r, r->header_in,
|
|
|
991 cscf->underscores_in_headers);
|
|
0
|
992
|
|
|
993 if (rc == NGX_OK) {
|
|
|
994
|
|
60
|
995 if (r->invalid_header && cscf->ignore_invalid_headers) {
|
|
52
|
996
|
|
|
997 /* there was error while a header line parsing */
|
|
|
998
|
|
54
|
999 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
524
|
1000 "client sent invalid header line: \"%*s\"",
|
|
|
1001 r->header_end - r->header_name_start,
|
|
|
1002 r->header_name_start);
|
|
52
|
1003 continue;
|
|
|
1004 }
|
|
|
1005
|
|
0
|
1006 /* a header line has been parsed successfully */
|
|
|
1007
|
|
50
|
1008 h = ngx_list_push(&r->headers_in.headers);
|
|
|
1009 if (h == NULL) {
|
|
0
|
1010 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
1011 return;
|
|
|
1012 }
|
|
|
1013
|
|
56
|
1014 h->hash = r->header_hash;
|
|
|
1015
|
|
0
|
1016 h->key.len = r->header_name_end - r->header_name_start;
|
|
|
1017 h->key.data = r->header_name_start;
|
|
|
1018 h->key.data[h->key.len] = '\0';
|
|
|
1019
|
|
|
1020 h->value.len = r->header_end - r->header_start;
|
|
|
1021 h->value.data = r->header_start;
|
|
|
1022 h->value.data[h->value.len] = '\0';
|
|
|
1023
|
|
382
|
1024 h->lowcase_key = ngx_pnalloc(r->pool, h->key.len);
|
|
198
|
1025 if (h->lowcase_key == NULL) {
|
|
|
1026 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
1027 return;
|
|
|
1028 }
|
|
|
1029
|
|
|
1030 if (h->key.len == r->lowcase_index) {
|
|
|
1031 ngx_memcpy(h->lowcase_key, r->lowcase_header, h->key.len);
|
|
|
1032
|
|
|
1033 } else {
|
|
392
|
1034 ngx_strlow(h->lowcase_key, h->key.data, h->key.len);
|
|
0
|
1035 }
|
|
|
1036
|
|
198
|
1037 hh = ngx_hash_find(&cmcf->headers_in_hash, h->hash,
|
|
|
1038 h->lowcase_key, h->key.len);
|
|
|
1039
|
|
|
1040 if (hh && hh->handler(r, h, hh->offset) != NGX_OK) {
|
|
|
1041 return;
|
|
|
1042 }
|
|
|
1043
|
|
0
|
1044 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
10
|
1045 "http header: \"%V: %V\"",
|
|
|
1046 &h->key, &h->value);
|
|
0
|
1047
|
|
|
1048 continue;
|
|
54
|
1049 }
|
|
|
1050
|
|
|
1051 if (rc == NGX_HTTP_PARSE_HEADER_DONE) {
|
|
0
|
1052
|
|
|
1053 /* a whole header has been parsed successfully */
|
|
|
1054
|
|
|
1055 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1056 "http header done");
|
|
|
1057
|
|
24
|
1058 r->request_length += r->header_in->pos - r->header_in->start;
|
|
|
1059
|
|
0
|
1060 r->http_state = NGX_HTTP_PROCESS_REQUEST_STATE;
|
|
|
1061
|
|
|
1062 rc = ngx_http_process_request_header(r);
|
|
|
1063
|
|
|
1064 if (rc != NGX_OK) {
|
|
|
1065 return;
|
|
|
1066 }
|
|
|
1067
|
|
308
|
1068 ngx_http_process_request(r);
|
|
86
|
1069
|
|
0
|
1070 return;
|
|
54
|
1071 }
|
|
|
1072
|
|
|
1073 if (rc == NGX_AGAIN) {
|
|
|
1074
|
|
|
1075 /* a header line parsing is still not complete */
|
|
|
1076
|
|
|
1077 continue;
|
|
0
|
1078 }
|
|
|
1079
|
|
54
|
1080 /* rc == NGX_HTTP_PARSE_INVALID_HEADER: "\r" is not followed by "\n" */
|
|
|
1081
|
|
|
1082 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
524
|
1083 "client sent invalid header line: \"%*s\\r...\"",
|
|
|
1084 r->header_end - r->header_name_start,
|
|
|
1085 r->header_name_start);
|
|
330
|
1086 ngx_http_finalize_request(r, NGX_HTTP_BAD_REQUEST);
|
|
54
|
1087 return;
|
|
0
|
1088 }
|
|
|
1089 }
|
|
|
1090
|
|
|
1091
|
|
50
|
1092 static ssize_t
|
|
|
1093 ngx_http_read_request_header(ngx_http_request_t *r)
|
|
0
|
1094 {
|
|
|
1095 ssize_t n;
|
|
|
1096 ngx_event_t *rev;
|
|
230
|
1097 ngx_connection_t *c;
|
|
0
|
1098 ngx_http_core_srv_conf_t *cscf;
|
|
|
1099
|
|
230
|
1100 c = r->connection;
|
|
|
1101 rev = c->read;
|
|
0
|
1102
|
|
|
1103 n = r->header_in->last - r->header_in->pos;
|
|
|
1104
|
|
|
1105 if (n > 0) {
|
|
|
1106 return n;
|
|
|
1107 }
|
|
|
1108
|
|
72
|
1109 if (rev->ready) {
|
|
230
|
1110 n = c->recv(c, r->header_in->last,
|
|
|
1111 r->header_in->end - r->header_in->last);
|
|
72
|
1112 } else {
|
|
|
1113 n = NGX_AGAIN;
|
|
0
|
1114 }
|
|
|
1115
|
|
|
1116 if (n == NGX_AGAIN) {
|
|
364
|
1117 if (!rev->timer_set) {
|
|
0
|
1118 cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
|
|
|
1119 ngx_add_timer(rev, cscf->client_header_timeout);
|
|
|
1120 }
|
|
|
1121
|
|
430
|
1122 if (ngx_handle_read_event(rev, 0) != NGX_OK) {
|
|
0
|
1123 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
1124 return NGX_ERROR;
|
|
|
1125 }
|
|
|
1126
|
|
|
1127 return NGX_AGAIN;
|
|
|
1128 }
|
|
|
1129
|
|
|
1130 if (n == 0) {
|
|
230
|
1131 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
0
|
1132 "client closed prematurely connection");
|
|
|
1133 }
|
|
|
1134
|
|
|
1135 if (n == 0 || n == NGX_ERROR) {
|
|
272
|
1136 c->error = 1;
|
|
|
1137 c->log->action = "reading client request headers";
|
|
|
1138
|
|
|
1139 ngx_http_finalize_request(r, NGX_HTTP_BAD_REQUEST);
|
|
0
|
1140 return NGX_ERROR;
|
|
|
1141 }
|
|
|
1142
|
|
|
1143 r->header_in->last += n;
|
|
|
1144
|
|
|
1145 return n;
|
|
|
1146 }
|
|
|
1147
|
|
|
1148
|
|
50
|
1149 static ngx_int_t
|
|
|
1150 ngx_http_alloc_large_header_buffer(ngx_http_request_t *r,
|
|
|
1151 ngx_uint_t request_line)
|
|
0
|
1152 {
|
|
|
1153 u_char *old, *new;
|
|
|
1154 ngx_buf_t *b;
|
|
|
1155 ngx_http_connection_t *hc;
|
|
|
1156 ngx_http_core_srv_conf_t *cscf;
|
|
|
1157
|
|
|
1158 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1159 "http alloc large header buffer");
|
|
|
1160
|
|
|
1161 if (request_line && r->state == 0) {
|
|
|
1162
|
|
|
1163 /* the client fills up the buffer with "\r\n" */
|
|
|
1164
|
|
24
|
1165 r->request_length += r->header_in->end - r->header_in->start;
|
|
|
1166
|
|
0
|
1167 r->header_in->pos = r->header_in->start;
|
|
|
1168 r->header_in->last = r->header_in->start;
|
|
|
1169
|
|
|
1170 return NGX_OK;
|
|
|
1171 }
|
|
|
1172
|
|
|
1173 old = request_line ? r->request_start : r->header_name_start;
|
|
|
1174
|
|
|
1175 cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
|
|
|
1176
|
|
|
1177 if (r->state != 0
|
|
|
1178 && (size_t) (r->header_in->pos - old)
|
|
|
1179 >= cscf->large_client_header_buffers.size)
|
|
|
1180 {
|
|
|
1181 return NGX_DECLINED;
|
|
|
1182 }
|
|
|
1183
|
|
|
1184 hc = r->http_connection;
|
|
|
1185
|
|
|
1186 if (hc->nfree) {
|
|
|
1187 b = hc->free[--hc->nfree];
|
|
|
1188
|
|
|
1189 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
10
|
1190 "http large header free: %p %uz",
|
|
0
|
1191 b->pos, b->end - b->last);
|
|
|
1192
|
|
|
1193 } else if (hc->nbusy < cscf->large_client_header_buffers.num) {
|
|
|
1194
|
|
|
1195 if (hc->busy == NULL) {
|
|
|
1196 hc->busy = ngx_palloc(r->connection->pool,
|
|
|
1197 cscf->large_client_header_buffers.num * sizeof(ngx_buf_t *));
|
|
|
1198 if (hc->busy == NULL) {
|
|
|
1199 return NGX_ERROR;
|
|
|
1200 }
|
|
|
1201 }
|
|
|
1202
|
|
|
1203 b = ngx_create_temp_buf(r->connection->pool,
|
|
|
1204 cscf->large_client_header_buffers.size);
|
|
|
1205 if (b == NULL) {
|
|
|
1206 return NGX_ERROR;
|
|
|
1207 }
|
|
|
1208
|
|
|
1209 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
10
|
1210 "http large header alloc: %p %uz",
|
|
0
|
1211 b->pos, b->end - b->last);
|
|
|
1212
|
|
|
1213 } else {
|
|
|
1214 return NGX_DECLINED;
|
|
|
1215 }
|
|
|
1216
|
|
|
1217 hc->busy[hc->nbusy++] = b;
|
|
|
1218
|
|
|
1219 if (r->state == 0) {
|
|
|
1220 /*
|
|
|
1221 * r->state == 0 means that a header line was parsed successfully
|
|
|
1222 * and we do not need to copy incomplete header line and
|
|
|
1223 * to relocate the parser header pointers
|
|
|
1224 */
|
|
|
1225
|
|
24
|
1226 r->request_length += r->header_in->end - r->header_in->start;
|
|
|
1227
|
|
0
|
1228 r->header_in = b;
|
|
|
1229
|
|
|
1230 return NGX_OK;
|
|
|
1231 }
|
|
|
1232
|
|
|
1233 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1234 "http large header copy: %d", r->header_in->pos - old);
|
|
|
1235
|
|
24
|
1236 r->request_length += old - r->header_in->start;
|
|
|
1237
|
|
0
|
1238 new = b->start;
|
|
|
1239
|
|
|
1240 ngx_memcpy(new, old, r->header_in->pos - old);
|
|
|
1241
|
|
|
1242 b->pos = new + (r->header_in->pos - old);
|
|
|
1243 b->last = new + (r->header_in->pos - old);
|
|
|
1244
|
|
|
1245 if (request_line) {
|
|
|
1246 r->request_start = new;
|
|
|
1247
|
|
|
1248 if (r->request_end) {
|
|
|
1249 r->request_end = new + (r->request_end - old);
|
|
|
1250 }
|
|
|
1251
|
|
|
1252 r->method_end = new + (r->method_end - old);
|
|
|
1253
|
|
|
1254 r->uri_start = new + (r->uri_start - old);
|
|
|
1255 r->uri_end = new + (r->uri_end - old);
|
|
|
1256
|
|
|
1257 if (r->schema_start) {
|
|
|
1258 r->schema_start = new + (r->schema_start - old);
|
|
|
1259 r->schema_end = new + (r->schema_end - old);
|
|
|
1260 }
|
|
|
1261
|
|
|
1262 if (r->host_start) {
|
|
|
1263 r->host_start = new + (r->host_start - old);
|
|
270
|
1264 if (r->host_end) {
|
|
|
1265 r->host_end = new + (r->host_end - old);
|
|
|
1266 }
|
|
0
|
1267 }
|
|
|
1268
|
|
|
1269 if (r->port_start) {
|
|
|
1270 r->port_start = new + (r->port_start - old);
|
|
|
1271 r->port_end = new + (r->port_end - old);
|
|
|
1272 }
|
|
|
1273
|
|
|
1274 if (r->uri_ext) {
|
|
|
1275 r->uri_ext = new + (r->uri_ext - old);
|
|
|
1276 }
|
|
|
1277
|
|
|
1278 if (r->args_start) {
|
|
|
1279 r->args_start = new + (r->args_start - old);
|
|
|
1280 }
|
|
|
1281
|
|
354
|
1282 if (r->http_protocol.data) {
|
|
|
1283 r->http_protocol.data = new + (r->http_protocol.data - old);
|
|
|
1284 }
|
|
|
1285
|
|
0
|
1286 } else {
|
|
|
1287 r->header_name_start = new;
|
|
|
1288 r->header_name_end = new + (r->header_name_end - old);
|
|
|
1289 r->header_start = new + (r->header_start - old);
|
|
|
1290 r->header_end = new + (r->header_end - old);
|
|
|
1291 }
|
|
|
1292
|
|
|
1293 r->header_in = b;
|
|
|
1294
|
|
|
1295 return NGX_OK;
|
|
|
1296 }
|
|
|
1297
|
|
|
1298
|
|
50
|
1299 static ngx_int_t
|
|
58
|
1300 ngx_http_process_header_line(ngx_http_request_t *r, ngx_table_elt_t *h,
|
|
|
1301 ngx_uint_t offset)
|
|
|
1302 {
|
|
|
1303 ngx_table_elt_t **ph;
|
|
|
1304
|
|
|
1305 ph = (ngx_table_elt_t **) ((char *) &r->headers_in + offset);
|
|
|
1306
|
|
|
1307 if (*ph == NULL) {
|
|
|
1308 *ph = h;
|
|
|
1309 }
|
|
|
1310
|
|
|
1311 return NGX_OK;
|
|
|
1312 }
|
|
|
1313
|
|
|
1314
|
|
|
1315 static ngx_int_t
|
|
72
|
1316 ngx_http_process_unique_header_line(ngx_http_request_t *r, ngx_table_elt_t *h,
|
|
|
1317 ngx_uint_t offset)
|
|
|
1318 {
|
|
|
1319 ngx_table_elt_t **ph;
|
|
|
1320
|
|
|
1321 ph = (ngx_table_elt_t **) ((char *) &r->headers_in + offset);
|
|
|
1322
|
|
|
1323 if (*ph == NULL) {
|
|
|
1324 *ph = h;
|
|
|
1325 return NGX_OK;
|
|
|
1326 }
|
|
|
1327
|
|
|
1328 ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
|
|
230
|
1329 "client sent duplicate header line: \"%V: %V\", "
|
|
|
1330 "previous value: \"%V: %V\"",
|
|
|
1331 &h->key, &h->value, &(*ph)->key, &(*ph)->value);
|
|
72
|
1332
|
|
|
1333 ngx_http_finalize_request(r, NGX_HTTP_BAD_REQUEST);
|
|
|
1334
|
|
|
1335 return NGX_ERROR;
|
|
|
1336 }
|
|
|
1337
|
|
|
1338
|
|
|
1339 static ngx_int_t
|
|
376
|
1340 ngx_http_process_host(ngx_http_request_t *r, ngx_table_elt_t *h,
|
|
|
1341 ngx_uint_t offset)
|
|
|
1342 {
|
|
530
|
1343 u_char *host;
|
|
|
1344 ssize_t len;
|
|
376
|
1345
|
|
|
1346 if (r->headers_in.host == NULL) {
|
|
|
1347 r->headers_in.host = h;
|
|
|
1348 }
|
|
|
1349
|
|
530
|
1350 host = h->value.data;
|
|
|
1351 len = ngx_http_validate_host(r, &host, h->value.len, 0);
|
|
|
1352
|
|
|
1353 if (len == 0) {
|
|
376
|
1354 ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
|
|
|
1355 "client sent invalid host header");
|
|
|
1356 ngx_http_finalize_request(r, NGX_HTTP_BAD_REQUEST);
|
|
|
1357 return NGX_ERROR;
|
|
|
1358 }
|
|
|
1359
|
|
530
|
1360 if (len < 0) {
|
|
|
1361 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
1362 return NGX_ERROR;
|
|
|
1363 }
|
|
|
1364
|
|
376
|
1365 if (r->headers_in.server.len) {
|
|
|
1366 return NGX_OK;
|
|
|
1367 }
|
|
|
1368
|
|
|
1369 r->headers_in.server.len = len;
|
|
530
|
1370 r->headers_in.server.data = host;
|
|
376
|
1371
|
|
|
1372 return NGX_OK;
|
|
|
1373 }
|
|
|
1374
|
|
|
1375
|
|
|
1376 static ngx_int_t
|
|
336
|
1377 ngx_http_process_connection(ngx_http_request_t *r, ngx_table_elt_t *h,
|
|
|
1378 ngx_uint_t offset)
|
|
|
1379 {
|
|
340
|
1380 if (ngx_strcasestrn(h->value.data, "close", 5 - 1)) {
|
|
336
|
1381 r->headers_in.connection_type = NGX_HTTP_CONNECTION_CLOSE;
|
|
|
1382
|
|
340
|
1383 } else if (ngx_strcasestrn(h->value.data, "keep-alive", 10 - 1)) {
|
|
336
|
1384 r->headers_in.connection_type = NGX_HTTP_CONNECTION_KEEP_ALIVE;
|
|
|
1385 }
|
|
|
1386
|
|
|
1387 return NGX_OK;
|
|
|
1388 }
|
|
|
1389
|
|
|
1390
|
|
|
1391 static ngx_int_t
|
|
376
|
1392 ngx_http_process_user_agent(ngx_http_request_t *r, ngx_table_elt_t *h,
|
|
|
1393 ngx_uint_t offset)
|
|
|
1394 {
|
|
400
|
1395 u_char *user_agent, *msie;
|
|
376
|
1396
|
|
|
1397 if (r->headers_in.user_agent) {
|
|
|
1398 return NGX_OK;
|
|
|
1399 }
|
|
|
1400
|
|
|
1401 r->headers_in.user_agent = h;
|
|
|
1402
|
|
|
1403 /* check some widespread browsers while the header is in CPU cache */
|
|
|
1404
|
|
|
1405 user_agent = h->value.data;
|
|
|
1406
|
|
400
|
1407 msie = ngx_strstrn(user_agent, "MSIE ", 5 - 1);
|
|
|
1408
|
|
|
1409 if (msie && msie + 7 < user_agent + h->value.len) {
|
|
376
|
1410
|
|
|
1411 r->headers_in.msie = 1;
|
|
|
1412
|
|
400
|
1413 if (msie[6] == '.') {
|
|
|
1414
|
|
|
1415 switch (msie[5]) {
|
|
|
1416 case '4':
|
|
|
1417 r->headers_in.msie4 = 1;
|
|
|
1418 /* fall through */
|
|
|
1419 case '5':
|
|
518
|
1420 r->headers_in.msie6 = 1;
|
|
|
1421 break;
|
|
400
|
1422 case '6':
|
|
518
|
1423 if (ngx_strstrn(msie + 8, "SV1", 3 - 1) == NULL) {
|
|
|
1424 r->headers_in.msie6 = 1;
|
|
|
1425 }
|
|
|
1426 break;
|
|
400
|
1427 }
|
|
376
|
1428 }
|
|
|
1429
|
|
|
1430 #if 0
|
|
|
1431 /* MSIE ignores the SSL "close notify" alert */
|
|
|
1432 if (c->ssl) {
|
|
|
1433 c->ssl->no_send_shutdown = 1;
|
|
|
1434 }
|
|
|
1435 #endif
|
|
|
1436 }
|
|
|
1437
|
|
|
1438 if (ngx_strstrn(user_agent, "Opera", 5 - 1)) {
|
|
|
1439 r->headers_in.opera = 1;
|
|
|
1440 r->headers_in.msie = 0;
|
|
|
1441 r->headers_in.msie4 = 0;
|
|
400
|
1442 r->headers_in.msie6 = 0;
|
|
376
|
1443 }
|
|
|
1444
|
|
|
1445 if (!r->headers_in.msie && !r->headers_in.opera) {
|
|
|
1446
|
|
|
1447 if (ngx_strstrn(user_agent, "Gecko/", 6 - 1)) {
|
|
|
1448 r->headers_in.gecko = 1;
|
|
|
1449
|
|
546
|
1450 } else if (ngx_strstrn(user_agent, "Chrome/", 7 - 1)) {
|
|
|
1451 r->headers_in.chrome = 1;
|
|
|
1452
|
|
562
|
1453 } else if (ngx_strstrn(user_agent, "Safari/", 7 - 1)) {
|
|
|
1454 r->headers_in.safari = 1;
|
|
|
1455
|
|
376
|
1456 } else if (ngx_strstrn(user_agent, "Konqueror", 9 - 1)) {
|
|
|
1457 r->headers_in.konqueror = 1;
|
|
|
1458 }
|
|
|
1459 }
|
|
|
1460
|
|
|
1461 return NGX_OK;
|
|
|
1462 }
|
|
|
1463
|
|
|
1464
|
|
|
1465 static ngx_int_t
|
|
58
|
1466 ngx_http_process_cookie(ngx_http_request_t *r, ngx_table_elt_t *h,
|
|
|
1467 ngx_uint_t offset)
|
|
|
1468 {
|
|
|
1469 ngx_table_elt_t **cookie;
|
|
|
1470
|
|
|
1471 cookie = ngx_array_push(&r->headers_in.cookies);
|
|
72
|
1472 if (cookie) {
|
|
|
1473 *cookie = h;
|
|
|
1474 return NGX_OK;
|
|
58
|
1475 }
|
|
|
1476
|
|
72
|
1477 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
1478
|
|
|
1479 return NGX_ERROR;
|
|
58
|
1480 }
|
|
|
1481
|
|
|
1482
|
|
|
1483 static ngx_int_t
|
|
50
|
1484 ngx_http_process_request_header(ngx_http_request_t *r)
|
|
0
|
1485 {
|
|
376
|
1486 if (ngx_http_find_virtual_server(r, r->headers_in.server.data,
|
|
|
1487 r->headers_in.server.len)
|
|
|
1488 == NGX_ERROR)
|
|
|
1489 {
|
|
|
1490 ngx_http_finalize_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
1491 return NGX_ERROR;
|
|
|
1492 }
|
|
|
1493
|
|
|
1494 if (r->headers_in.host == NULL && r->http_version > NGX_HTTP_VERSION_10) {
|
|
|
1495 ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
|
|
|
1496 "client sent HTTP/1.1 request without \"Host\" header");
|
|
|
1497 ngx_http_finalize_request(r, NGX_HTTP_BAD_REQUEST);
|
|
|
1498 return NGX_ERROR;
|
|
0
|
1499 }
|
|
|
1500
|
|
|
1501 if (r->headers_in.content_length) {
|
|
|
1502 r->headers_in.content_length_n =
|
|
212
|
1503 ngx_atoof(r->headers_in.content_length->value.data,
|
|
0
|
1504 r->headers_in.content_length->value.len);
|
|
|
1505
|
|
|
1506 if (r->headers_in.content_length_n == NGX_ERROR) {
|
|
54
|
1507 ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
|
|
|
1508 "client sent invalid \"Content-Length\" header");
|
|
130
|
1509 ngx_http_finalize_request(r, NGX_HTTP_LENGTH_REQUIRED);
|
|
54
|
1510 return NGX_ERROR;
|
|
0
|
1511 }
|
|
|
1512 }
|
|
|
1513
|
|
426
|
1514 if (r->method & NGX_HTTP_PUT && r->headers_in.content_length_n == -1) {
|
|
54
|
1515 ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
|
|
362
|
1516 "client sent %V method without \"Content-Length\" header",
|
|
|
1517 &r->method_name);
|
|
130
|
1518 ngx_http_finalize_request(r, NGX_HTTP_LENGTH_REQUIRED);
|
|
|
1519 return NGX_ERROR;
|
|
|
1520 }
|
|
|
1521
|
|
336
|
1522 if (r->method & NGX_HTTP_TRACE) {
|
|
294
|
1523 ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
|
|
|
1524 "client sent TRACE method");
|
|
|
1525 ngx_http_finalize_request(r, NGX_HTTP_NOT_ALLOWED);
|
|
|
1526 return NGX_ERROR;
|
|
|
1527 }
|
|
|
1528
|
|
130
|
1529 if (r->headers_in.transfer_encoding
|
|
340
|
1530 && ngx_strcasestrn(r->headers_in.transfer_encoding->value.data,
|
|
|
1531 "chunked", 7 - 1))
|
|
130
|
1532 {
|
|
|
1533 ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
|
|
|
1534 "client sent \"Transfer-Encoding: chunked\" header");
|
|
|
1535 ngx_http_finalize_request(r, NGX_HTTP_LENGTH_REQUIRED);
|
|
54
|
1536 return NGX_ERROR;
|
|
0
|
1537 }
|
|
|
1538
|
|
336
|
1539 if (r->headers_in.connection_type == NGX_HTTP_CONNECTION_KEEP_ALIVE) {
|
|
|
1540 if (r->headers_in.keep_alive) {
|
|
|
1541 r->headers_in.keep_alive_n =
|
|
|
1542 ngx_atotm(r->headers_in.keep_alive->value.data,
|
|
|
1543 r->headers_in.keep_alive->value.len);
|
|
0
|
1544 }
|
|
|
1545 }
|
|
|
1546
|
|
308
|
1547 return NGX_OK;
|
|
|
1548 }
|
|
|
1549
|
|
|
1550
|
|
|
1551 static void
|
|
|
1552 ngx_http_process_request(ngx_http_request_t *r)
|
|
|
1553 {
|
|
356
|
1554 ngx_connection_t *c;
|
|
308
|
1555
|
|
|
1556 c = r->connection;
|
|
|
1557
|
|
354
|
1558 if (r->plain_http) {
|
|
|
1559 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
|
1560 "client sent plain HTTP request to HTTPS port");
|
|
|
1561 ngx_http_finalize_request(r, NGX_HTTP_TO_HTTPS);
|
|
|
1562 return;
|
|
|
1563 }
|
|
|
1564
|
|
308
|
1565 #if (NGX_HTTP_SSL)
|
|
|
1566
|
|
|
1567 if (c->ssl) {
|
|
356
|
1568 long rc;
|
|
372
|
1569 X509 *cert;
|
|
356
|
1570 ngx_http_ssl_srv_conf_t *sscf;
|
|
|
1571
|
|
218
|
1572 sscf = ngx_http_get_module_srv_conf(r, ngx_http_ssl_module);
|
|
|
1573
|
|
510
|
1574 if (sscf->verify) {
|
|
308
|
1575 rc = SSL_get_verify_result(c->ssl->connection);
|
|
218
|
1576
|
|
|
1577 if (rc != X509_V_OK) {
|
|
308
|
1578 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
220
|
1579 "client SSL certificate verify error: (%l:%s)",
|
|
218
|
1580 rc, X509_verify_cert_error_string(rc));
|
|
366
|
1581
|
|
|
1582 ngx_ssl_remove_cached_session(sscf->ssl.ctx,
|
|
|
1583 (SSL_get0_session(c->ssl->connection)));
|
|
|
1584
|
|
218
|
1585 ngx_http_finalize_request(r, NGX_HTTPS_CERT_ERROR);
|
|
308
|
1586 return;
|
|
218
|
1587 }
|
|
|
1588
|
|
510
|
1589 if (sscf->verify == 1) {
|
|
|
1590 cert = SSL_get_peer_certificate(c->ssl->connection);
|
|
|
1591
|
|
|
1592 if (cert == NULL) {
|
|
|
1593 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
|
1594 "client sent no required SSL certificate");
|
|
|
1595
|
|
|
1596 ngx_ssl_remove_cached_session(sscf->ssl.ctx,
|
|
366
|
1597 (SSL_get0_session(c->ssl->connection)));
|
|
|
1598
|
|
510
|
1599 ngx_http_finalize_request(r, NGX_HTTPS_NO_CERT);
|
|
|
1600 return;
|
|
|
1601 }
|
|
|
1602
|
|
|
1603 X509_free(cert);
|
|
218
|
1604 }
|
|
|
1605 }
|
|
|
1606 }
|
|
|
1607
|
|
|
1608 #endif
|
|
|
1609
|
|
308
|
1610 if (c->read->timer_set) {
|
|
|
1611 ngx_del_timer(c->read);
|
|
|
1612 }
|
|
|
1613
|
|
|
1614 #if (NGX_STAT_STUB)
|
|
502
|
1615 (void) ngx_atomic_fetch_add(ngx_stat_reading, -1);
|
|
308
|
1616 r->stat_reading = 0;
|
|
502
|
1617 (void) ngx_atomic_fetch_add(ngx_stat_writing, 1);
|
|
308
|
1618 r->stat_writing = 1;
|
|
|
1619 #endif
|
|
|
1620
|
|
|
1621 c->read->handler = ngx_http_request_handler;
|
|
|
1622 c->write->handler = ngx_http_request_handler;
|
|
326
|
1623 r->read_event_handler = ngx_http_block_reading;
|
|
308
|
1624
|
|
|
1625 ngx_http_handler(r);
|
|
|
1626
|
|
426
|
1627 ngx_http_run_posted_requests(c);
|
|
0
|
1628 }
|
|
|
1629
|
|
|
1630
|
|
376
|
1631 static ssize_t
|
|
530
|
1632 ngx_http_validate_host(ngx_http_request_t *r, u_char **host, size_t len,
|
|
|
1633 ngx_uint_t alloc)
|
|
26
|
1634 {
|
|
530
|
1635 u_char *h, ch;
|
|
|
1636 size_t i, last;
|
|
|
1637 ngx_uint_t dot;
|
|
376
|
1638
|
|
|
1639 last = len;
|
|
530
|
1640 h = *host;
|
|
376
|
1641 dot = 0;
|
|
|
1642
|
|
|
1643 for (i = 0; i < len; i++) {
|
|
530
|
1644 ch = h[i];
|
|
376
|
1645
|
|
|
1646 if (ch == '.') {
|
|
|
1647 if (dot) {
|
|
530
|
1648 return 0;
|
|
376
|
1649 }
|
|
|
1650
|
|
|
1651 dot = 1;
|
|
|
1652 continue;
|
|
|
1653 }
|
|
|
1654
|
|
|
1655 dot = 0;
|
|
|
1656
|
|
|
1657 if (ch == ':') {
|
|
|
1658 last = i;
|
|
|
1659 continue;
|
|
|
1660 }
|
|
|
1661
|
|
482
|
1662 if (ngx_path_separator(ch) || ch == '\0') {
|
|
530
|
1663 return 0;
|
|
|
1664 }
|
|
|
1665
|
|
|
1666 if (ch >= 'A' || ch < 'Z') {
|
|
|
1667 alloc = 1;
|
|
376
|
1668 }
|
|
|
1669 }
|
|
|
1670
|
|
|
1671 if (dot) {
|
|
|
1672 last--;
|
|
|
1673 }
|
|
|
1674
|
|
530
|
1675 if (alloc) {
|
|
|
1676 *host = ngx_pnalloc(r->pool, last) ;
|
|
|
1677 if (*host == NULL) {
|
|
|
1678 return -1;
|
|
|
1679 }
|
|
|
1680
|
|
|
1681 ngx_strlow(*host, h, last);
|
|
|
1682 }
|
|
|
1683
|
|
376
|
1684 return last;
|
|
|
1685 }
|
|
|
1686
|
|
|
1687
|
|
|
1688 static ngx_int_t
|
|
|
1689 ngx_http_find_virtual_server(ngx_http_request_t *r, u_char *host, size_t len)
|
|
|
1690 {
|
|
142
|
1691 ngx_http_core_loc_conf_t *clcf;
|
|
|
1692 ngx_http_core_srv_conf_t *cscf;
|
|
376
|
1693
|
|
478
|
1694 if (r->virtual_names == NULL) {
|
|
376
|
1695 return NGX_DECLINED;
|
|
|
1696 }
|
|
|
1697
|
|
530
|
1698 cscf = ngx_hash_find_combined(&r->virtual_names->names,
|
|
|
1699 ngx_hash_key(host, len), host, len);
|
|
312
|
1700
|
|
|
1701 if (cscf) {
|
|
|
1702 goto found;
|
|
26
|
1703 }
|
|
|
1704
|
|
326
|
1705 #if (NGX_PCRE)
|
|
|
1706
|
|
538
|
1707 if (len && r->virtual_names->nregex) {
|
|
356
|
1708 ngx_int_t n;
|
|
|
1709 ngx_uint_t i;
|
|
|
1710 ngx_str_t name;
|
|
|
1711 ngx_http_server_name_t *sn;
|
|
326
|
1712
|
|
|
1713 name.len = len;
|
|
530
|
1714 name.data = host;
|
|
326
|
1715
|
|
478
|
1716 sn = r->virtual_names->regex;
|
|
|
1717
|
|
|
1718 for (i = 0; i < r->virtual_names->nregex; i++) {
|
|
326
|
1719
|
|
546
|
1720 n = ngx_http_regex_exec(r, sn[i].regex, &name);
|
|
|
1721
|
|
|
1722 if (n == NGX_OK) {
|
|
|
1723 cscf = sn[i].server;
|
|
|
1724 goto found;
|
|
456
|
1725 }
|
|
|
1726
|
|
546
|
1727 if (n == NGX_DECLINED) {
|
|
326
|
1728 continue;
|
|
|
1729 }
|
|
|
1730
|
|
546
|
1731 return NGX_ERROR;
|
|
326
|
1732 }
|
|
|
1733 }
|
|
|
1734
|
|
|
1735 #endif
|
|
|
1736
|
|
376
|
1737 return NGX_OK;
|
|
58
|
1738
|
|
|
1739 found:
|
|
|
1740
|
|
142
|
1741 r->srv_conf = cscf->ctx->srv_conf;
|
|
|
1742 r->loc_conf = cscf->ctx->loc_conf;
|
|
58
|
1743
|
|
|
1744 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
484
|
1745 r->connection->log->file = clcf->error_log->file;
|
|
58
|
1746
|
|
|
1747 if (!(r->connection->log->log_level & NGX_LOG_DEBUG_CONNECTION)) {
|
|
484
|
1748 r->connection->log->log_level = clcf->error_log->log_level;
|
|
26
|
1749 }
|
|
|
1750
|
|
376
|
1751 return NGX_OK;
|
|
26
|
1752 }
|
|
|
1753
|
|
|
1754
|
|
58
|
1755 static void
|
|
|
1756 ngx_http_request_handler(ngx_event_t *ev)
|
|
|
1757 {
|
|
|
1758 ngx_connection_t *c;
|
|
|
1759 ngx_http_request_t *r;
|
|
214
|
1760 ngx_http_log_ctx_t *ctx;
|
|
58
|
1761
|
|
|
1762 c = ev->data;
|
|
|
1763 r = c->data;
|
|
|
1764
|
|
214
|
1765 ctx = c->log->data;
|
|
|
1766 ctx->current_request = r;
|
|
|
1767
|
|
426
|
1768 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
|
1769 "http run request: \"%V?%V\"", &r->uri, &r->args);
|
|
|
1770
|
|
58
|
1771 if (ev->write) {
|
|
|
1772 r->write_event_handler(r);
|
|
|
1773
|
|
|
1774 } else {
|
|
|
1775 r->read_event_handler(r);
|
|
|
1776 }
|
|
426
|
1777
|
|
|
1778 ngx_http_run_posted_requests(c);
|
|
|
1779 }
|
|
|
1780
|
|
|
1781
|
|
|
1782 void
|
|
|
1783 ngx_http_run_posted_requests(ngx_connection_t *c)
|
|
|
1784 {
|
|
|
1785 ngx_http_request_t *r;
|
|
|
1786 ngx_http_log_ctx_t *ctx;
|
|
|
1787 ngx_http_posted_request_t *pr;
|
|
|
1788
|
|
|
1789 for ( ;; ) {
|
|
|
1790
|
|
|
1791 if (c->destroyed) {
|
|
|
1792 return;
|
|
|
1793 }
|
|
|
1794
|
|
|
1795 r = c->data;
|
|
|
1796 pr = r->main->posted_requests;
|
|
|
1797
|
|
|
1798 if (pr == NULL) {
|
|
|
1799 return;
|
|
|
1800 }
|
|
|
1801
|
|
|
1802 r->main->posted_requests = pr->next;
|
|
|
1803
|
|
|
1804 r = pr->request;
|
|
|
1805
|
|
|
1806 ctx = c->log->data;
|
|
|
1807 ctx->current_request = r;
|
|
|
1808
|
|
|
1809 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
|
1810 "http posted request: \"%V?%V\"", &r->uri, &r->args);
|
|
|
1811
|
|
|
1812 r->write_event_handler(r);
|
|
|
1813 }
|
|
|
1814 }
|
|
|
1815
|
|
|
1816
|
|
|
1817 ngx_int_t
|
|
520
|
1818 ngx_http_post_request(ngx_http_request_t *r, ngx_http_posted_request_t *pr)
|
|
426
|
1819 {
|
|
520
|
1820 ngx_http_posted_request_t **p;
|
|
|
1821
|
|
426
|
1822 if (pr == NULL) {
|
|
520
|
1823 pr = ngx_palloc(r->pool, sizeof(ngx_http_posted_request_t));
|
|
|
1824 if (pr == NULL) {
|
|
|
1825 return NGX_ERROR;
|
|
|
1826 }
|
|
426
|
1827 }
|
|
|
1828
|
|
|
1829 pr->request = r;
|
|
|
1830 pr->next = NULL;
|
|
|
1831
|
|
|
1832 for (p = &r->main->posted_requests; *p; p = &(*p)->next) { /* void */ }
|
|
|
1833
|
|
|
1834 *p = pr;
|
|
|
1835
|
|
|
1836 return NGX_OK;
|
|
58
|
1837 }
|
|
|
1838
|
|
|
1839
|
|
50
|
1840 void
|
|
58
|
1841 ngx_http_finalize_request(ngx_http_request_t *r, ngx_int_t rc)
|
|
0
|
1842 {
|
|
330
|
1843 ngx_connection_t *c;
|
|
58
|
1844 ngx_http_request_t *pr;
|
|
0
|
1845 ngx_http_core_loc_conf_t *clcf;
|
|
|
1846
|
|
518
|
1847 c = r->connection;
|
|
|
1848
|
|
|
1849 ngx_log_debug5(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
|
1850 "http finalize request: %d, \"%V?%V\" a:%d, c:%d",
|
|
|
1851 rc, &r->uri, &r->args, r == c->data, r->main->count);
|
|
|
1852
|
|
58
|
1853 if (rc == NGX_DONE) {
|
|
518
|
1854 ngx_http_finalize_connection(r);
|
|
58
|
1855 return;
|
|
|
1856 }
|
|
|
1857
|
|
488
|
1858 if (rc == NGX_OK && r->filter_finalize) {
|
|
|
1859 c->error = 1;
|
|
|
1860 return;
|
|
|
1861 }
|
|
|
1862
|
|
230
|
1863 if (rc == NGX_DECLINED) {
|
|
|
1864 r->content_handler = NULL;
|
|
|
1865 r->write_event_handler = ngx_http_core_run_phases;
|
|
|
1866 ngx_http_core_run_phases(r);
|
|
|
1867 return;
|
|
|
1868 }
|
|
|
1869
|
|
248
|
1870 if (r != r->main && r->post_subrequest) {
|
|
|
1871 rc = r->post_subrequest->handler(r, r->post_subrequest->data, rc);
|
|
216
|
1872 }
|
|
|
1873
|
|
358
|
1874 if (rc == NGX_ERROR
|
|
|
1875 || rc == NGX_HTTP_REQUEST_TIME_OUT
|
|
|
1876 || rc == NGX_HTTP_CLIENT_CLOSED_REQUEST
|
|
|
1877 || c->error)
|
|
|
1878 {
|
|
162
|
1879 if (ngx_http_post_action(r) == NGX_OK) {
|
|
|
1880 return;
|
|
|
1881 }
|
|
|
1882
|
|
518
|
1883 if (r->main->blocked) {
|
|
|
1884 r->write_event_handler = ngx_http_request_finalizer;
|
|
|
1885 }
|
|
|
1886
|
|
|
1887 ngx_http_terminate_request(r, rc);
|
|
0
|
1888 return;
|
|
|
1889 }
|
|
|
1890
|
|
186
|
1891 if (rc >= NGX_HTTP_SPECIAL_RESPONSE
|
|
|
1892 || rc == NGX_HTTP_CREATED
|
|
|
1893 || rc == NGX_HTTP_NO_CONTENT)
|
|
|
1894 {
|
|
136
|
1895 if (rc == NGX_HTTP_CLOSE) {
|
|
518
|
1896 ngx_http_terminate_request(r, rc);
|
|
136
|
1897 return;
|
|
|
1898 }
|
|
|
1899
|
|
146
|
1900 if (r == r->main) {
|
|
330
|
1901 if (c->read->timer_set) {
|
|
|
1902 ngx_del_timer(c->read);
|
|
118
|
1903 }
|
|
|
1904
|
|
330
|
1905 if (c->write->timer_set) {
|
|
|
1906 ngx_del_timer(c->write);
|
|
118
|
1907 }
|
|
|
1908 }
|
|
|
1909
|
|
410
|
1910 c->read->handler = ngx_http_request_handler;
|
|
|
1911 c->write->handler = ngx_http_request_handler;
|
|
|
1912
|
|
118
|
1913 ngx_http_finalize_request(r, ngx_http_special_response_handler(r, rc));
|
|
|
1914 return;
|
|
|
1915 }
|
|
|
1916
|
|
426
|
1917 if (r != r->main) {
|
|
|
1918
|
|
|
1919 if (r->buffered || r->postponed) {
|
|
|
1920
|
|
|
1921 if (ngx_http_set_write_handler(r) != NGX_OK) {
|
|
518
|
1922 ngx_http_terminate_request(r, 0);
|
|
426
|
1923 }
|
|
|
1924
|
|
74
|
1925 return;
|
|
|
1926 }
|
|
426
|
1927
|
|
|
1928 #if (NGX_DEBUG)
|
|
|
1929 if (r != c->data) {
|
|
|
1930 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
|
1931 "http finalize non-active request: \"%V?%V\"",
|
|
|
1932 &r->uri, &r->args);
|
|
|
1933 }
|
|
|
1934 #endif
|
|
58
|
1935
|
|
|
1936 pr = r->parent;
|
|
|
1937
|
|
426
|
1938 if (r == c->data) {
|
|
|
1939
|
|
518
|
1940 r->main->count--;
|
|
|
1941
|
|
426
|
1942 if (!r->logged) {
|
|
|
1943
|
|
|
1944 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
1945
|
|
|
1946 if (clcf->log_subrequest) {
|
|
|
1947 ngx_http_log_request(r);
|
|
|
1948 }
|
|
|
1949
|
|
|
1950 r->logged = 1;
|
|
|
1951
|
|
|
1952 } else {
|
|
|
1953 ngx_log_error(NGX_LOG_ALERT, c->log, 0,
|
|
|
1954 "subrequest: \"%V?%V\" logged again",
|
|
|
1955 &r->uri, &r->args);
|
|
|
1956 }
|
|
|
1957
|
|
|
1958 r->done = 1;
|
|
|
1959
|
|
|
1960 if (pr->postponed && pr->postponed->request == r) {
|
|
|
1961 pr->postponed = pr->postponed->next;
|
|
|
1962 }
|
|
|
1963
|
|
|
1964 c->data = pr;
|
|
|
1965
|
|
|
1966 } else {
|
|
|
1967
|
|
|
1968 r->write_event_handler = ngx_http_request_finalizer;
|
|
|
1969
|
|
|
1970 if (r->waited) {
|
|
|
1971 r->done = 1;
|
|
|
1972 }
|
|
|
1973 }
|
|
|
1974
|
|
520
|
1975 if (ngx_http_post_request(pr, NULL) != NGX_OK) {
|
|
518
|
1976 r->main->count++;
|
|
|
1977 ngx_http_terminate_request(r, 0);
|
|
426
|
1978 return;
|
|
|
1979 }
|
|
|
1980
|
|
330
|
1981 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
426
|
1982 "http wake parent request: \"%V?%V\"",
|
|
|
1983 &pr->uri, &pr->args);
|
|
|
1984
|
|
|
1985 return;
|
|
|
1986 }
|
|
|
1987
|
|
518
|
1988 if (r->buffered || c->buffered || r->postponed || r->blocked) {
|
|
426
|
1989
|
|
|
1990 if (ngx_http_set_write_handler(r) != NGX_OK) {
|
|
518
|
1991 ngx_http_terminate_request(r, 0);
|
|
58
|
1992 }
|
|
|
1993
|
|
|
1994 return;
|
|
|
1995 }
|
|
0
|
1996
|
|
426
|
1997 if (r != c->data) {
|
|
|
1998 ngx_log_error(NGX_LOG_ALERT, c->log, 0,
|
|
|
1999 "http finalize non-active request: \"%V?%V\"",
|
|
|
2000 &r->uri, &r->args);
|
|
0
|
2001 return;
|
|
76
|
2002 }
|
|
|
2003
|
|
426
|
2004 r->done = 1;
|
|
562
|
2005 r->write_event_handler = ngx_http_request_empty_handler;
|
|
0
|
2006
|
|
178
|
2007 if (!r->post_action) {
|
|
|
2008 r->request_complete = 1;
|
|
|
2009 }
|
|
|
2010
|
|
162
|
2011 if (ngx_http_post_action(r) == NGX_OK) {
|
|
126
|
2012 return;
|
|
|
2013 }
|
|
|
2014
|
|
330
|
2015 if (c->read->timer_set) {
|
|
|
2016 ngx_del_timer(c->read);
|
|
|
2017 }
|
|
|
2018
|
|
|
2019 if (c->write->timer_set) {
|
|
|
2020 c->write->delayed = 0;
|
|
|
2021 ngx_del_timer(c->write);
|
|
0
|
2022 }
|
|
|
2023
|
|
518
|
2024 if (c->read->eof) {
|
|
|
2025 ngx_http_close_request(r, 0);
|
|
330
|
2026 return;
|
|
0
|
2027 }
|
|
|
2028
|
|
518
|
2029 ngx_http_finalize_connection(r);
|
|
|
2030 }
|
|
|
2031
|
|
|
2032
|
|
|
2033 static void
|
|
|
2034 ngx_http_terminate_request(ngx_http_request_t *r, ngx_int_t rc)
|
|
|
2035 {
|
|
520
|
2036 ngx_http_cleanup_t *cln;
|
|
|
2037 ngx_http_request_t *mr;
|
|
|
2038 ngx_http_ephemeral_t *e;
|
|
518
|
2039
|
|
|
2040 mr = r->main;
|
|
|
2041
|
|
|
2042 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
2043 "http terminate request count:%d", mr->count);
|
|
|
2044
|
|
532
|
2045 if (rc > 0 && (mr->headers_out.status == 0 || mr->connection->sent == 0)) {
|
|
|
2046 mr->headers_out.status = rc;
|
|
|
2047 }
|
|
|
2048
|
|
518
|
2049 cln = mr->cleanup;
|
|
|
2050 mr->cleanup = NULL;
|
|
|
2051
|
|
|
2052 while (cln) {
|
|
|
2053 if (cln->handler) {
|
|
|
2054 cln->handler(cln->data);
|
|
|
2055 }
|
|
|
2056
|
|
|
2057 cln = cln->next;
|
|
|
2058 }
|
|
|
2059
|
|
|
2060 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
2061 "http terminate cleanup count:%d blk:%d",
|
|
|
2062 mr->count, mr->blocked);
|
|
|
2063
|
|
|
2064 if (mr->write_event_handler) {
|
|
|
2065
|
|
|
2066 if (mr->blocked) {
|
|
|
2067 return;
|
|
|
2068 }
|
|
|
2069
|
|
520
|
2070 e = ngx_http_ephemeral(mr);
|
|
518
|
2071 mr->posted_requests = NULL;
|
|
|
2072 mr->write_event_handler = ngx_http_terminate_handler;
|
|
520
|
2073 (void) ngx_http_post_request(mr, &e->terminal_posted_request);
|
|
518
|
2074 return;
|
|
|
2075 }
|
|
|
2076
|
|
|
2077 ngx_http_close_request(mr, rc);
|
|
|
2078 }
|
|
|
2079
|
|
|
2080
|
|
|
2081 static void
|
|
|
2082 ngx_http_terminate_handler(ngx_http_request_t *r)
|
|
|
2083 {
|
|
|
2084 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
2085 "http terminate handler count:%d", r->count);
|
|
|
2086
|
|
|
2087 r->count = 1;
|
|
|
2088
|
|
|
2089 ngx_http_close_request(r, 0);
|
|
|
2090 }
|
|
|
2091
|
|
|
2092
|
|
|
2093 static void
|
|
|
2094 ngx_http_finalize_connection(ngx_http_request_t *r)
|
|
|
2095 {
|
|
|
2096 ngx_http_core_loc_conf_t *clcf;
|
|
|
2097
|
|
538
|
2098 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
2099
|
|
518
|
2100 if (r->main->count != 1) {
|
|
538
|
2101
|
|
|
2102 if (r->discard_body) {
|
|
|
2103 r->read_event_handler = ngx_http_discarded_request_body_handler;
|
|
|
2104
|
|
|
2105 if (r->lingering_time == 0) {
|
|
|
2106 r->lingering_time = ngx_time()
|
|
|
2107 + (time_t) (clcf->lingering_time / 1000);
|
|
|
2108 ngx_add_timer(r->connection->read, clcf->lingering_timeout);
|
|
|
2109 }
|
|
|
2110 }
|
|
|
2111
|
|
330
|
2112 ngx_http_close_request(r, 0);
|
|
138
|
2113 return;
|
|
|
2114 }
|
|
|
2115
|
|
0
|
2116 if (!ngx_terminate
|
|
|
2117 && !ngx_exiting
|
|
378
|
2118 && r->keepalive
|
|
0
|
2119 && clcf->keepalive_timeout > 0)
|
|
|
2120 {
|
|
|
2121 ngx_http_set_keepalive(r);
|
|
|
2122 return;
|
|
|
2123
|
|
|
2124 } else if (r->lingering_close && clcf->lingering_timeout > 0) {
|
|
|
2125 ngx_http_set_lingering_close(r);
|
|
|
2126 return;
|
|
|
2127 }
|
|
|
2128
|
|
|
2129 ngx_http_close_request(r, 0);
|
|
|
2130 }
|
|
|
2131
|
|
|
2132
|
|
74
|
2133 static ngx_int_t
|
|
50
|
2134 ngx_http_set_write_handler(ngx_http_request_t *r)
|
|
0
|
2135 {
|
|
|
2136 ngx_event_t *wev;
|
|
|
2137 ngx_http_core_loc_conf_t *clcf;
|
|
|
2138
|
|
58
|
2139 r->http_state = NGX_HTTP_WRITING_REQUEST_STATE;
|
|
|
2140
|
|
538
|
2141 r->read_event_handler = r->discard_body ?
|
|
|
2142 ngx_http_discarded_request_body_handler:
|
|
|
2143 ngx_http_test_reading;
|
|
74
|
2144 r->write_event_handler = ngx_http_writer;
|
|
|
2145
|
|
0
|
2146 wev = r->connection->write;
|
|
|
2147
|
|
|
2148 if (wev->ready && wev->delayed) {
|
|
74
|
2149 return NGX_OK;
|
|
0
|
2150 }
|
|
|
2151
|
|
58
|
2152 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
0
|
2153 if (!wev->delayed) {
|
|
|
2154 ngx_add_timer(wev, clcf->send_timeout);
|
|
|
2155 }
|
|
|
2156
|
|
430
|
2157 if (ngx_handle_write_event(wev, clcf->send_lowat) != NGX_OK) {
|
|
0
|
2158 ngx_http_close_request(r, 0);
|
|
74
|
2159 return NGX_ERROR;
|
|
0
|
2160 }
|
|
74
|
2161
|
|
|
2162 return NGX_OK;
|
|
0
|
2163 }
|
|
|
2164
|
|
|
2165
|
|
58
|
2166 static void
|
|
|
2167 ngx_http_writer(ngx_http_request_t *r)
|
|
0
|
2168 {
|
|
|
2169 int rc;
|
|
58
|
2170 ngx_event_t *wev;
|
|
0
|
2171 ngx_connection_t *c;
|
|
|
2172 ngx_http_core_loc_conf_t *clcf;
|
|
|
2173
|
|
58
|
2174 c = r->connection;
|
|
|
2175 wev = c->write;
|
|
|
2176
|
|
132
|
2177 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, wev->log, 0,
|
|
|
2178 "http writer handler: \"%V?%V\"", &r->uri, &r->args);
|
|
0
|
2179
|
|
426
|
2180 clcf = ngx_http_get_module_loc_conf(r->main, ngx_http_core_module);
|
|
|
2181
|
|
0
|
2182 if (wev->timedout) {
|
|
|
2183 if (!wev->delayed) {
|
|
54
|
2184 ngx_log_error(NGX_LOG_INFO, c->log, NGX_ETIMEDOUT,
|
|
|
2185 "client timed out");
|
|
|
2186 c->timedout = 1;
|
|
116
|
2187
|
|
162
|
2188 ngx_http_finalize_request(r, NGX_HTTP_REQUEST_TIME_OUT);
|
|
0
|
2189 return;
|
|
|
2190 }
|
|
|
2191
|
|
|
2192 wev->timedout = 0;
|
|
|
2193 wev->delayed = 0;
|
|
|
2194
|
|
|
2195 if (!wev->ready) {
|
|
|
2196 ngx_add_timer(wev, clcf->send_timeout);
|
|
|
2197
|
|
430
|
2198 if (ngx_handle_write_event(wev, clcf->send_lowat) != NGX_OK) {
|
|
118
|
2199 ngx_http_close_request(r, 0);
|
|
0
|
2200 }
|
|
|
2201
|
|
|
2202 return;
|
|
|
2203 }
|
|
|
2204
|
|
|
2205 } else {
|
|
518
|
2206 if (wev->delayed || r->aio) {
|
|
0
|
2207 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, wev->log, 0,
|
|
|
2208 "http writer delayed");
|
|
|
2209
|
|
430
|
2210 if (ngx_handle_write_event(wev, clcf->send_lowat) != NGX_OK) {
|
|
118
|
2211 ngx_http_close_request(r, 0);
|
|
0
|
2212 }
|
|
|
2213
|
|
|
2214 return;
|
|
|
2215 }
|
|
|
2216 }
|
|
|
2217
|
|
132
|
2218 rc = ngx_http_output_filter(r, NULL);
|
|
|
2219
|
|
|
2220 ngx_log_debug3(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
|
2221 "http writer output filter: %d, \"%V?%V\"",
|
|
|
2222 rc, &r->uri, &r->args);
|
|
0
|
2223
|
|
494
|
2224 if (rc == NGX_ERROR) {
|
|
|
2225 ngx_http_finalize_request(r, rc);
|
|
|
2226 return;
|
|
|
2227 }
|
|
|
2228
|
|
426
|
2229 if (r->buffered || r->postponed || (r == r->main && c->buffered)) {
|
|
|
2230
|
|
0
|
2231 if (!wev->ready && !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) {
|
|
118
|
2236 ngx_http_close_request(r, 0);
|
|
0
|
2237 }
|
|
|
2238
|
|
426
|
2239 return;
|
|
0
|
2240 }
|
|
|
2241
|
|
132
|
2242 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, wev->log, 0,
|
|
|
2243 "http writer done: \"%V?%V\"", &r->uri, &r->args);
|
|
0
|
2244
|
|
538
|
2245 r->write_event_handler = ngx_http_request_empty_handler;
|
|
|
2246
|
|
0
|
2247 ngx_http_finalize_request(r, rc);
|
|
|
2248 }
|
|
|
2249
|
|
|
2250
|
|
426
|
2251 static void
|
|
|
2252 ngx_http_request_finalizer(ngx_http_request_t *r)
|
|
|
2253 {
|
|
|
2254 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
2255 "http finalizer done: \"%V?%V\"", &r->uri, &r->args);
|
|
|
2256
|
|
|
2257 ngx_http_finalize_request(r, 0);
|
|
|
2258 }
|
|
|
2259
|
|
|
2260
|
|
326
|
2261 void
|
|
|
2262 ngx_http_block_reading(ngx_http_request_t *r)
|
|
0
|
2263 {
|
|
318
|
2264 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
326
|
2265 "http reading blocked");
|
|
318
|
2266
|
|
|
2267 /* aio does not call this handler */
|
|
|
2268
|
|
|
2269 if ((ngx_event_flags & NGX_USE_LEVEL_EVENT)
|
|
|
2270 && r->connection->read->active)
|
|
|
2271 {
|
|
430
|
2272 if (ngx_del_event(r->connection->read, NGX_READ_EVENT, 0) != NGX_OK) {
|
|
318
|
2273 ngx_http_close_request(r, 0);
|
|
|
2274 }
|
|
|
2275 }
|
|
|
2276 }
|
|
|
2277
|
|
|
2278
|
|
416
|
2279 void
|
|
326
|
2280 ngx_http_test_reading(ngx_http_request_t *r)
|
|
318
|
2281 {
|
|
276
|
2282 int n;
|
|
|
2283 char buf[1];
|
|
|
2284 ngx_err_t err;
|
|
|
2285 ngx_event_t *rev;
|
|
|
2286 ngx_connection_t *c;
|
|
|
2287
|
|
|
2288 c = r->connection;
|
|
|
2289 rev = c->read;
|
|
|
2290
|
|
326
|
2291 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "http test reading");
|
|
276
|
2292
|
|
|
2293 #if (NGX_HAVE_KQUEUE)
|
|
|
2294
|
|
|
2295 if (ngx_event_flags & NGX_USE_KQUEUE_EVENT) {
|
|
|
2296
|
|
|
2297 if (!rev->pending_eof) {
|
|
|
2298 return;
|
|
|
2299 }
|
|
|
2300
|
|
|
2301 rev->eof = 1;
|
|
|
2302 c->error = 1;
|
|
|
2303 err = rev->kq_errno;
|
|
|
2304
|
|
|
2305 goto closed;
|
|
|
2306 }
|
|
|
2307
|
|
|
2308 #endif
|
|
|
2309
|
|
|
2310 n = recv(c->fd, buf, 1, MSG_PEEK);
|
|
|
2311
|
|
|
2312 if (n == 0) {
|
|
|
2313 rev->eof = 1;
|
|
|
2314 c->error = 1;
|
|
|
2315 err = 0;
|
|
|
2316
|
|
|
2317 goto closed;
|
|
|
2318
|
|
|
2319 } else if (n == -1) {
|
|
|
2320 err = ngx_socket_errno;
|
|
|
2321
|
|
|
2322 if (err != NGX_EAGAIN) {
|
|
|
2323 rev->eof = 1;
|
|
|
2324 c->error = 1;
|
|
|
2325
|
|
|
2326 goto closed;
|
|
|
2327 }
|
|
|
2328 }
|
|
0
|
2329
|
|
|
2330 /* aio does not call this handler */
|
|
|
2331
|
|
276
|
2332 if ((ngx_event_flags & NGX_USE_LEVEL_EVENT) && rev->active) {
|
|
|
2333
|
|
430
|
2334 if (ngx_del_event(rev, NGX_READ_EVENT, 0) != NGX_OK) {
|
|
0
|
2335 ngx_http_close_request(r, 0);
|
|
|
2336 }
|
|
|
2337 }
|
|
276
|
2338
|
|
|
2339 return;
|
|
|
2340
|
|
|
2341 closed:
|
|
|
2342
|
|
|
2343 if (err) {
|
|
|
2344 rev->error = 1;
|
|
|
2345 }
|
|
|
2346
|
|
|
2347 ngx_log_error(NGX_LOG_INFO, c->log, err,
|
|
|
2348 "client closed prematurely connection");
|
|
|
2349
|
|
286
|
2350 ngx_http_finalize_request(r, 0);
|
|
0
|
2351 }
|
|
|
2352
|
|
|
2353
|
|
50
|
2354 static void
|
|
|
2355 ngx_http_set_keepalive(ngx_http_request_t *r)
|
|
0
|
2356 {
|
|
2
|
2357 int tcp_nodelay;
|
|
0
|
2358 ngx_int_t i;
|
|
|
2359 ngx_buf_t *b, *f;
|
|
|
2360 ngx_event_t *rev, *wev;
|
|
|
2361 ngx_connection_t *c;
|
|
|
2362 ngx_http_connection_t *hc;
|
|
|
2363 ngx_http_core_srv_conf_t *cscf;
|
|
|
2364 ngx_http_core_loc_conf_t *clcf;
|
|
|
2365
|
|
|
2366 c = r->connection;
|
|
|
2367 rev = c->read;
|
|
|
2368
|
|
326
|
2369 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
2370
|
|
0
|
2371 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "set http keepalive handler");
|
|
|
2372
|
|
326
|
2373 if (r->discard_body) {
|
|
442
|
2374 r->write_event_handler = ngx_http_request_empty_handler;
|
|
326
|
2375 r->lingering_time = ngx_time() + (time_t) (clcf->lingering_time / 1000);
|
|
|
2376 ngx_add_timer(rev, clcf->lingering_timeout);
|
|
|
2377 return;
|
|
|
2378 }
|
|
|
2379
|
|
32
|
2380 c->log->action = "closing request";
|
|
0
|
2381
|
|
|
2382 hc = r->http_connection;
|
|
|
2383 b = r->header_in;
|
|
|
2384
|
|
|
2385 if (b->pos < b->last) {
|
|
|
2386
|
|
|
2387 /* the pipelined request */
|
|
|
2388
|
|
|
2389 if (b != c->buffer) {
|
|
|
2390
|
|
4
|
2391 /*
|
|
|
2392 * If the large header buffers were allocated while the previous
|
|
|
2393 * request processing then we do not use c->buffer for
|
|
|
2394 * the pipelined request (see ngx_http_init_request()).
|
|
126
|
2395 *
|
|
4
|
2396 * Now we would move the large header buffers to the free list.
|
|
|
2397 */
|
|
0
|
2398
|
|
|
2399 cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
|
|
|
2400
|
|
|
2401 if (hc->free == NULL) {
|
|
|
2402 hc->free = ngx_palloc(c->pool,
|
|
|
2403 cscf->large_client_header_buffers.num * sizeof(ngx_buf_t *));
|
|
|
2404
|
|
|
2405 if (hc->free == NULL) {
|
|
26
|
2406 ngx_http_close_request(r, 0);
|
|
0
|
2407 return;
|
|
|
2408 }
|
|
|
2409 }
|
|
|
2410
|
|
|
2411 for (i = 0; i < hc->nbusy - 1; i++) {
|
|
|
2412 f = hc->busy[i];
|
|
|
2413 hc->free[hc->nfree++] = f;
|
|
|
2414 f->pos = f->start;
|
|
|
2415 f->last = f->start;
|
|
|
2416 }
|
|
|
2417
|
|
|
2418 hc->busy[0] = b;
|
|
|
2419 hc->nbusy = 1;
|
|
|
2420 }
|
|
|
2421 }
|
|
|
2422
|
|
532
|
2423 r->keepalive = 0;
|
|
|
2424
|
|
518
|
2425 ngx_http_free_request(r, 0);
|
|
118
|
2426
|
|
0
|
2427 c->data = hc;
|
|
|
2428
|
|
|
2429 ngx_add_timer(rev, clcf->keepalive_timeout);
|
|
|
2430
|
|
430
|
2431 if (ngx_handle_read_event(rev, 0) != NGX_OK) {
|
|
0
|
2432 ngx_http_close_connection(c);
|
|
|
2433 return;
|
|
|
2434 }
|
|
|
2435
|
|
|
2436 wev = c->write;
|
|
58
|
2437 wev->handler = ngx_http_empty_handler;
|
|
0
|
2438
|
|
|
2439 if (b->pos < b->last) {
|
|
|
2440
|
|
|
2441 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "pipelined request");
|
|
|
2442
|
|
116
|
2443 #if (NGX_STAT_STUB)
|
|
502
|
2444 (void) ngx_atomic_fetch_add(ngx_stat_reading, 1);
|
|
116
|
2445 #endif
|
|
|
2446
|
|
0
|
2447 hc->pipeline = 1;
|
|
32
|
2448 c->log->action = "reading client pipelined request line";
|
|
116
|
2449
|
|
376
|
2450 rev->handler = ngx_http_init_request;
|
|
|
2451 ngx_post_event(rev, &ngx_posted_events);
|
|
0
|
2452 return;
|
|
|
2453 }
|
|
|
2454
|
|
|
2455 hc->pipeline = 0;
|
|
|
2456
|
|
4
|
2457 /*
|
|
|
2458 * To keep a memory footprint as small as possible for an idle
|
|
|
2459 * keepalive connection we try to free the ngx_http_request_t and
|
|
|
2460 * c->buffer's memory if they were allocated outside the c->pool.
|
|
|
2461 * The large header buffers are always allocated outside the c->pool and
|
|
|
2462 * are freed too.
|
|
|
2463 */
|
|
|
2464
|
|
0
|
2465 if (ngx_pfree(c->pool, r) == NGX_OK) {
|
|
|
2466 hc->request = NULL;
|
|
|
2467 }
|
|
|
2468
|
|
|
2469 b = c->buffer;
|
|
|
2470
|
|
|
2471 if (ngx_pfree(c->pool, b->start) == NGX_OK) {
|
|
4
|
2472
|
|
|
2473 /*
|
|
|
2474 * the special note for ngx_http_keepalive_handler() that
|
|
|
2475 * c->buffer's memory was freed
|
|
|
2476 */
|
|
|
2477
|
|
0
|
2478 b->pos = NULL;
|
|
|
2479
|
|
|
2480 } else {
|
|
|
2481 b->pos = b->start;
|
|
|
2482 b->last = b->start;
|
|
|
2483 }
|
|
|
2484
|
|
10
|
2485 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, c->log, 0, "hc free: %p %d",
|
|
0
|
2486 hc->free, hc->nfree);
|
|
|
2487
|
|
|
2488 if (hc->free) {
|
|
|
2489 for (i = 0; i < hc->nfree; i++) {
|
|
356
|
2490 ngx_pfree(c->pool, hc->free[i]->start);
|
|
0
|
2491 hc->free[i] = NULL;
|
|
|
2492 }
|
|
|
2493
|
|
|
2494 hc->nfree = 0;
|
|
|
2495 }
|
|
|
2496
|
|
10
|
2497 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, c->log, 0, "hc busy: %p %d",
|
|
0
|
2498 hc->busy, hc->nbusy);
|
|
|
2499
|
|
|
2500 if (hc->busy) {
|
|
|
2501 for (i = 0; i < hc->nbusy; i++) {
|
|
356
|
2502 ngx_pfree(c->pool, hc->busy[i]->start);
|
|
0
|
2503 hc->busy[i] = NULL;
|
|
|
2504 }
|
|
|
2505
|
|
|
2506 hc->nbusy = 0;
|
|
|
2507 }
|
|
|
2508
|
|
358
|
2509 #if (NGX_HTTP_SSL)
|
|
|
2510 if (c->ssl) {
|
|
|
2511 ngx_ssl_free_buffer(c);
|
|
|
2512 }
|
|
|
2513 #endif
|
|
|
2514
|
|
58
|
2515 rev->handler = ngx_http_keepalive_handler;
|
|
0
|
2516
|
|
132
|
2517 if (wev->active && (ngx_event_flags & NGX_USE_LEVEL_EVENT)) {
|
|
430
|
2518 if (ngx_del_event(wev, NGX_WRITE_EVENT, 0) != NGX_OK) {
|
|
132
|
2519 ngx_http_close_connection(c);
|
|
|
2520 return;
|
|
0
|
2521 }
|
|
|
2522 }
|
|
|
2523
|
|
32
|
2524 c->log->action = "keepalive";
|
|
0
|
2525
|
|
|
2526 if (c->tcp_nopush == NGX_TCP_NOPUSH_SET) {
|
|
50
|
2527 if (ngx_tcp_push(c->fd) == -1) {
|
|
0
|
2528 ngx_connection_error(c, ngx_socket_errno, ngx_tcp_push_n " failed");
|
|
|
2529 ngx_http_close_connection(c);
|
|
|
2530 return;
|
|
|
2531 }
|
|
2
|
2532
|
|
0
|
2533 c->tcp_nopush = NGX_TCP_NOPUSH_UNSET;
|
|
22
|
2534 tcp_nodelay = ngx_tcp_nodelay_and_tcp_nopush ? 1 : 0;
|
|
2
|
2535
|
|
|
2536 } else {
|
|
22
|
2537 tcp_nodelay = 1;
|
|
|
2538 }
|
|
|
2539
|
|
32
|
2540 if (tcp_nodelay
|
|
|
2541 && clcf->tcp_nodelay
|
|
|
2542 && c->tcp_nodelay == NGX_TCP_NODELAY_UNSET)
|
|
|
2543 {
|
|
22
|
2544 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "tcp_nodelay");
|
|
|
2545
|
|
|
2546 if (setsockopt(c->fd, IPPROTO_TCP, TCP_NODELAY,
|
|
184
|
2547 (const void *) &tcp_nodelay, sizeof(int))
|
|
|
2548 == -1)
|
|
22
|
2549 {
|
|
460
|
2550 #if (NGX_SOLARIS)
|
|
|
2551 /* Solaris returns EINVAL if a socket has been shut down */
|
|
|
2552 c->log_error = NGX_ERROR_IGNORE_EINVAL;
|
|
|
2553 #endif
|
|
|
2554
|
|
22
|
2555 ngx_connection_error(c, ngx_socket_errno,
|
|
|
2556 "setsockopt(TCP_NODELAY) failed");
|
|
460
|
2557
|
|
|
2558 c->log_error = NGX_ERROR_INFO;
|
|
22
|
2559 ngx_http_close_connection(c);
|
|
|
2560 return;
|
|
2
|
2561 }
|
|
22
|
2562
|
|
32
|
2563 c->tcp_nodelay = NGX_TCP_NODELAY_SET;
|
|
0
|
2564 }
|
|
|
2565
|
|
|
2566 #if 0
|
|
4
|
2567 /* if ngx_http_request_t was freed then we need some other place */
|
|
0
|
2568 r->http_state = NGX_HTTP_KEEPALIVE_STATE;
|
|
|
2569 #endif
|
|
|
2570
|
|
290
|
2571 c->idle = 1;
|
|
|
2572
|
|
0
|
2573 if (rev->ready) {
|
|
376
|
2574 ngx_post_event(rev, &ngx_posted_events);
|
|
0
|
2575 }
|
|
|
2576 }
|
|
|
2577
|
|
|
2578
|
|
50
|
2579 static void
|
|
|
2580 ngx_http_keepalive_handler(ngx_event_t *rev)
|
|
0
|
2581 {
|
|
50
|
2582 size_t size;
|
|
|
2583 ssize_t n;
|
|
|
2584 ngx_buf_t *b;
|
|
|
2585 ngx_connection_t *c;
|
|
0
|
2586
|
|
|
2587 c = rev->data;
|
|
|
2588
|
|
|
2589 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "http keepalive handler");
|
|
|
2590
|
|
290
|
2591 if (rev->timedout || c->close) {
|
|
0
|
2592 ngx_http_close_connection(c);
|
|
|
2593 return;
|
|
|
2594 }
|
|
|
2595
|
|
18
|
2596 #if (NGX_HAVE_KQUEUE)
|
|
0
|
2597
|
|
4
|
2598 if (ngx_event_flags & NGX_USE_KQUEUE_EVENT) {
|
|
136
|
2599 if (rev->pending_eof) {
|
|
32
|
2600 c->log->handler = NULL;
|
|
0
|
2601 ngx_log_error(NGX_LOG_INFO, c->log, rev->kq_errno,
|
|
10
|
2602 "kevent() reported that client %V closed "
|
|
32
|
2603 "keepalive connection", &c->addr_text);
|
|
22
|
2604 #if (NGX_HTTP_SSL)
|
|
|
2605 if (c->ssl) {
|
|
96
|
2606 c->ssl->no_send_shutdown = 1;
|
|
22
|
2607 }
|
|
|
2608 #endif
|
|
0
|
2609 ngx_http_close_connection(c);
|
|
|
2610 return;
|
|
|
2611 }
|
|
|
2612 }
|
|
|
2613
|
|
|
2614 #endif
|
|
|
2615
|
|
|
2616 b = c->buffer;
|
|
|
2617 size = b->end - b->start;
|
|
|
2618
|
|
|
2619 if (b->pos == NULL) {
|
|
4
|
2620
|
|
|
2621 /*
|
|
|
2622 * The c->buffer's memory was freed by ngx_http_set_keepalive().
|
|
|
2623 * However, the c->buffer->start and c->buffer->end were not changed
|
|
|
2624 * to keep the buffer size.
|
|
|
2625 */
|
|
|
2626
|
|
50
|
2627 b->pos = ngx_palloc(c->pool, size);
|
|
|
2628 if (b->pos == NULL) {
|
|
0
|
2629 ngx_http_close_connection(c);
|
|
|
2630 return;
|
|
|
2631 }
|
|
|
2632
|
|
|
2633 b->start = b->pos;
|
|
|
2634 b->last = b->pos;
|
|
|
2635 b->end = b->pos + size;
|
|
|
2636 }
|
|
|
2637
|
|
|
2638 /*
|
|
|
2639 * MSIE closes a keepalive connection with RST flag
|
|
|
2640 * so we ignore ECONNRESET here.
|
|
|
2641 */
|
|
|
2642
|
|
|
2643 c->log_error = NGX_ERROR_IGNORE_ECONNRESET;
|
|
|
2644 ngx_set_socket_errno(0);
|
|
|
2645
|
|
|
2646 n = c->recv(c, b->last, size);
|
|
|
2647 c->log_error = NGX_ERROR_INFO;
|
|
|
2648
|
|
|
2649 if (n == NGX_AGAIN) {
|
|
430
|
2650 if (ngx_handle_read_event(rev, 0) != NGX_OK) {
|
|
24
|
2651 ngx_http_close_connection(c);
|
|
|
2652 }
|
|
|
2653
|
|
0
|
2654 return;
|
|
|
2655 }
|
|
|
2656
|
|
|
2657 if (n == NGX_ERROR) {
|
|
|
2658 ngx_http_close_connection(c);
|
|
|
2659 return;
|
|
|
2660 }
|
|
|
2661
|
|
32
|
2662 c->log->handler = NULL;
|
|
0
|
2663
|
|
|
2664 if (n == 0) {
|
|
|
2665 ngx_log_error(NGX_LOG_INFO, c->log, ngx_socket_errno,
|
|
32
|
2666 "client %V closed keepalive connection", &c->addr_text);
|
|
0
|
2667 ngx_http_close_connection(c);
|
|
|
2668 return;
|
|
|
2669 }
|
|
|
2670
|
|
|
2671 b->last += n;
|
|
32
|
2672
|
|
116
|
2673 #if (NGX_STAT_STUB)
|
|
502
|
2674 (void) ngx_atomic_fetch_add(ngx_stat_reading, 1);
|
|
116
|
2675 #endif
|
|
|
2676
|
|
32
|
2677 c->log->handler = ngx_http_log_error;
|
|
|
2678 c->log->action = "reading client request line";
|
|
0
|
2679
|
|
290
|
2680 c->idle = 0;
|
|
|
2681
|
|
0
|
2682 ngx_http_init_request(rev);
|
|
|
2683 }
|
|
|
2684
|
|
|
2685
|
|
50
|
2686 static void
|
|
|
2687 ngx_http_set_lingering_close(ngx_http_request_t *r)
|
|
126
|
2688 {
|
|
0
|
2689 ngx_event_t *rev, *wev;
|
|
|
2690 ngx_connection_t *c;
|
|
|
2691 ngx_http_core_loc_conf_t *clcf;
|
|
|
2692
|
|
|
2693 c = r->connection;
|
|
|
2694
|
|
|
2695 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
2696
|
|
|
2697 rev = c->read;
|
|
58
|
2698 rev->handler = ngx_http_lingering_close_handler;
|
|
0
|
2699
|
|
106
|
2700 r->lingering_time = ngx_time() + (time_t) (clcf->lingering_time / 1000);
|
|
0
|
2701 ngx_add_timer(rev, clcf->lingering_timeout);
|
|
|
2702
|
|
430
|
2703 if (ngx_handle_read_event(rev, 0) != NGX_OK) {
|
|
0
|
2704 ngx_http_close_request(r, 0);
|
|
|
2705 return;
|
|
|
2706 }
|
|
|
2707
|
|
|
2708 wev = c->write;
|
|
58
|
2709 wev->handler = ngx_http_empty_handler;
|
|
0
|
2710
|
|
132
|
2711 if (wev->active && (ngx_event_flags & NGX_USE_LEVEL_EVENT)) {
|
|
430
|
2712 if (ngx_del_event(wev, NGX_WRITE_EVENT, 0) != NGX_OK) {
|
|
132
|
2713 ngx_http_close_request(r, 0);
|
|
|
2714 return;
|
|
0
|
2715 }
|
|
|
2716 }
|
|
|
2717
|
|
|
2718 if (ngx_shutdown_socket(c->fd, NGX_WRITE_SHUTDOWN) == -1) {
|
|
|
2719 ngx_connection_error(c, ngx_socket_errno,
|
|
|
2720 ngx_shutdown_socket_n " failed");
|
|
|
2721 ngx_http_close_request(r, 0);
|
|
|
2722 return;
|
|
|
2723 }
|
|
|
2724
|
|
|
2725 if (rev->ready) {
|
|
|
2726 ngx_http_lingering_close_handler(rev);
|
|
|
2727 }
|
|
|
2728 }
|
|
|
2729
|
|
|
2730
|
|
50
|
2731 static void
|
|
|
2732 ngx_http_lingering_close_handler(ngx_event_t *rev)
|
|
0
|
2733 {
|
|
|
2734 ssize_t n;
|
|
|
2735 ngx_msec_t timer;
|
|
|
2736 ngx_connection_t *c;
|
|
|
2737 ngx_http_request_t *r;
|
|
|
2738 ngx_http_core_loc_conf_t *clcf;
|
|
|
2739 u_char buffer[NGX_HTTP_LINGERING_BUFFER_SIZE];
|
|
|
2740
|
|
|
2741 c = rev->data;
|
|
|
2742 r = c->data;
|
|
|
2743
|
|
|
2744 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
|
2745 "http lingering close handler");
|
|
|
2746
|
|
|
2747 if (rev->timedout) {
|
|
126
|
2748 c->timedout = 1;
|
|
0
|
2749 ngx_http_close_request(r, 0);
|
|
|
2750 return;
|
|
|
2751 }
|
|
|
2752
|
|
346
|
2753 timer = (ngx_msec_t) (r->lingering_time - ngx_time());
|
|
0
|
2754 if (timer <= 0) {
|
|
|
2755 ngx_http_close_request(r, 0);
|
|
|
2756 return;
|
|
|
2757 }
|
|
|
2758
|
|
|
2759 do {
|
|
|
2760 n = c->recv(c, buffer, NGX_HTTP_LINGERING_BUFFER_SIZE);
|
|
|
2761
|
|
|
2762 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0, "lingering read: %d", n);
|
|
|
2763
|
|
|
2764 if (n == NGX_ERROR || n == 0) {
|
|
|
2765 ngx_http_close_request(r, 0);
|
|
|
2766 return;
|
|
|
2767 }
|
|
|
2768
|
|
|
2769 } while (rev->ready);
|
|
|
2770
|
|
430
|
2771 if (ngx_handle_read_event(rev, 0) != NGX_OK) {
|
|
26
|
2772 ngx_http_close_request(r, 0);
|
|
24
|
2773 return;
|
|
|
2774 }
|
|
|
2775
|
|
0
|
2776 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
2777
|
|
|
2778 timer *= 1000;
|
|
|
2779
|
|
|
2780 if (timer > clcf->lingering_timeout) {
|
|
|
2781 timer = clcf->lingering_timeout;
|
|
|
2782 }
|
|
|
2783
|
|
|
2784 ngx_add_timer(rev, timer);
|
|
|
2785 }
|
|
|
2786
|
|
|
2787
|
|
50
|
2788 void
|
|
|
2789 ngx_http_empty_handler(ngx_event_t *wev)
|
|
0
|
2790 {
|
|
|
2791 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, wev->log, 0, "http empty handler");
|
|
|
2792
|
|
|
2793 return;
|
|
|
2794 }
|
|
|
2795
|
|
|
2796
|
|
58
|
2797 void
|
|
|
2798 ngx_http_request_empty_handler(ngx_http_request_t *r)
|
|
|
2799 {
|
|
|
2800 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
132
|
2801 "http request empty handler");
|
|
58
|
2802
|
|
|
2803 return;
|
|
|
2804 }
|
|
|
2805
|
|
|
2806
|
|
50
|
2807 ngx_int_t
|
|
130
|
2808 ngx_http_send_special(ngx_http_request_t *r, ngx_uint_t flags)
|
|
0
|
2809 {
|
|
|
2810 ngx_buf_t *b;
|
|
|
2811 ngx_chain_t out;
|
|
|
2812
|
|
50
|
2813 b = ngx_calloc_buf(r->pool);
|
|
|
2814 if (b == NULL) {
|
|
0
|
2815 return NGX_ERROR;
|
|
|
2816 }
|
|
|
2817
|
|
130
|
2818 if (flags & NGX_HTTP_LAST) {
|
|
506
|
2819
|
|
|
2820 if (r == r->main && !r->post_action) {
|
|
|
2821 b->last_buf = 1;
|
|
|
2822
|
|
|
2823 } else {
|
|
510
|
2824 b->sync = 1;
|
|
506
|
2825 b->last_in_chain = 1;
|
|
|
2826 }
|
|
130
|
2827 }
|
|
|
2828
|
|
|
2829 if (flags & NGX_HTTP_FLUSH) {
|
|
|
2830 b->flush = 1;
|
|
|
2831 }
|
|
|
2832
|
|
0
|
2833 out.buf = b;
|
|
|
2834 out.next = NULL;
|
|
|
2835
|
|
|
2836 return ngx_http_output_filter(r, &out);
|
|
|
2837 }
|
|
|
2838
|
|
|
2839
|
|
162
|
2840 static ngx_int_t
|
|
|
2841 ngx_http_post_action(ngx_http_request_t *r)
|
|
|
2842 {
|
|
|
2843 ngx_http_core_loc_conf_t *clcf;
|
|
|
2844
|
|
|
2845 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
2846
|
|
|
2847 if (clcf->post_action.data == NULL) {
|
|
|
2848 return NGX_DECLINED;
|
|
|
2849 }
|
|
|
2850
|
|
172
|
2851 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
2852 "post action: \"%V\"", &clcf->post_action);
|
|
|
2853
|
|
528
|
2854 r->main->count--;
|
|
|
2855
|
|
162
|
2856 r->http_version = NGX_HTTP_VERSION_9;
|
|
|
2857 r->header_only = 1;
|
|
178
|
2858 r->post_action = 1;
|
|
162
|
2859
|
|
326
|
2860 r->read_event_handler = ngx_http_block_reading;
|
|
262
|
2861
|
|
366
|
2862 if (clcf->post_action.data[0] == '/') {
|
|
|
2863 ngx_http_internal_redirect(r, &clcf->post_action, NULL);
|
|
|
2864
|
|
|
2865 } else {
|
|
|
2866 ngx_http_named_location(r, &clcf->post_action);
|
|
|
2867 }
|
|
162
|
2868
|
|
|
2869 return NGX_OK;
|
|
|
2870 }
|
|
|
2871
|
|
|
2872
|
|
|
2873 static void
|
|
518
|
2874 ngx_http_close_request(ngx_http_request_t *r, ngx_int_t rc)
|
|
0
|
2875 {
|
|
188
|
2876 ngx_connection_t *c;
|
|
118
|
2877
|
|
518
|
2878 r = r->main;
|
|
118
|
2879 c = r->connection;
|
|
188
|
2880
|
|
518
|
2881 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
|
2882 "http request count:%d blk:%d", r->count, r->blocked);
|
|
|
2883
|
|
|
2884 if (r->count == 0) {
|
|
|
2885 ngx_log_error(NGX_LOG_ALERT, c->log, 0, "http request count is zero");
|
|
|
2886 }
|
|
|
2887
|
|
|
2888 r->count--;
|
|
|
2889
|
|
|
2890 if (r->count || r->blocked) {
|
|
|
2891 return;
|
|
|
2892 }
|
|
|
2893
|
|
|
2894 ngx_http_free_request(r, rc);
|
|
118
|
2895 ngx_http_close_connection(c);
|
|
|
2896 }
|
|
|
2897
|
|
|
2898
|
|
162
|
2899 static void
|
|
518
|
2900 ngx_http_free_request(ngx_http_request_t *r, ngx_int_t rc)
|
|
118
|
2901 {
|
|
412
|
2902 ngx_log_t *log;
|
|
|
2903 struct linger linger;
|
|
|
2904 ngx_http_cleanup_t *cln;
|
|
|
2905 ngx_http_log_ctx_t *ctx;
|
|
|
2906 ngx_http_core_loc_conf_t *clcf;
|
|
0
|
2907
|
|
|
2908 log = r->connection->log;
|
|
|
2909
|
|
|
2910 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, log, 0, "http close request");
|
|
|
2911
|
|
|
2912 if (r->pool == NULL) {
|
|
80
|
2913 ngx_log_error(NGX_LOG_ALERT, log, 0, "http request already closed");
|
|
0
|
2914 return;
|
|
|
2915 }
|
|
|
2916
|
|
188
|
2917 for (cln = r->cleanup; cln; cln = cln->next) {
|
|
|
2918 if (cln->handler) {
|
|
|
2919 cln->handler(cln->data);
|
|
|
2920 }
|
|
|
2921 }
|
|
|
2922
|
|
0
|
2923 #if (NGX_STAT_STUB)
|
|
116
|
2924
|
|
0
|
2925 if (r->stat_reading) {
|
|
502
|
2926 (void) ngx_atomic_fetch_add(ngx_stat_reading, -1);
|
|
0
|
2927 }
|
|
|
2928
|
|
|
2929 if (r->stat_writing) {
|
|
502
|
2930 (void) ngx_atomic_fetch_add(ngx_stat_writing, -1);
|
|
0
|
2931 }
|
|
116
|
2932
|
|
0
|
2933 #endif
|
|
|
2934
|
|
518
|
2935 if (rc > 0 && (r->headers_out.status == 0 || r->connection->sent == 0)) {
|
|
|
2936 r->headers_out.status = rc;
|
|
0
|
2937 }
|
|
|
2938
|
|
386
|
2939 log->action = "logging request";
|
|
|
2940
|
|
412
|
2941 ngx_http_log_request(r);
|
|
0
|
2942
|
|
386
|
2943 log->action = "closing request";
|
|
|
2944
|
|
0
|
2945 if (r->connection->timedout) {
|
|
|
2946 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
2947
|
|
|
2948 if (clcf->reset_timedout_connection) {
|
|
58
|
2949 linger.l_onoff = 1;
|
|
|
2950 linger.l_linger = 0;
|
|
0
|
2951
|
|
|
2952 if (setsockopt(r->connection->fd, SOL_SOCKET, SO_LINGER,
|
|
58
|
2953 (const void *) &linger, sizeof(struct linger)) == -1)
|
|
0
|
2954 {
|
|
|
2955 ngx_log_error(NGX_LOG_ALERT, log, ngx_socket_errno,
|
|
|
2956 "setsockopt(SO_LINGER) failed");
|
|
|
2957 }
|
|
|
2958 }
|
|
|
2959 }
|
|
|
2960
|
|
58
|
2961 /* the various request strings were allocated from r->pool */
|
|
0
|
2962 ctx = log->data;
|
|
10
|
2963 ctx->request = NULL;
|
|
0
|
2964
|
|
|
2965 r->request_line.len = 0;
|
|
|
2966
|
|
132
|
2967 r->connection->destroyed = 1;
|
|
|
2968
|
|
0
|
2969 ngx_destroy_pool(r->pool);
|
|
|
2970 }
|
|
|
2971
|
|
|
2972
|
|
80
|
2973 static void
|
|
412
|
2974 ngx_http_log_request(ngx_http_request_t *r)
|
|
|
2975 {
|
|
|
2976 ngx_uint_t i, n;
|
|
|
2977 ngx_http_handler_pt *log_handler;
|
|
|
2978 ngx_http_core_main_conf_t *cmcf;
|
|
|
2979
|
|
|
2980 cmcf = ngx_http_get_module_main_conf(r, ngx_http_core_module);
|
|
|
2981
|
|
|
2982 log_handler = cmcf->phases[NGX_HTTP_LOG_PHASE].handlers.elts;
|
|
|
2983 n = cmcf->phases[NGX_HTTP_LOG_PHASE].handlers.nelts;
|
|
|
2984
|
|
|
2985 for (i = 0; i < n; i++) {
|
|
|
2986 log_handler[i](r);
|
|
|
2987 }
|
|
|
2988 }
|
|
|
2989
|
|
|
2990
|
|
|
2991 static void
|
|
50
|
2992 ngx_http_close_connection(ngx_connection_t *c)
|
|
0
|
2993 {
|
|
28
|
2994 ngx_pool_t *pool;
|
|
|
2995
|
|
0
|
2996 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
|
2997 "close http connection: %d", c->fd);
|
|
|
2998
|
|
88
|
2999 #if (NGX_HTTP_SSL)
|
|
2
|
3000
|
|
|
3001 if (c->ssl) {
|
|
|
3002 if (ngx_ssl_shutdown(c) == NGX_AGAIN) {
|
|
126
|
3003 c->ssl->handler = ngx_http_close_connection;
|
|
2
|
3004 return;
|
|
|
3005 }
|
|
|
3006 }
|
|
|
3007
|
|
|
3008 #endif
|
|
|
3009
|
|
0
|
3010 #if (NGX_STAT_STUB)
|
|
502
|
3011 (void) ngx_atomic_fetch_add(ngx_stat_active, -1);
|
|
0
|
3012 #endif
|
|
|
3013
|
|
132
|
3014 c->destroyed = 1;
|
|
|
3015
|
|
28
|
3016 pool = c->pool;
|
|
|
3017
|
|
0
|
3018 ngx_close_connection(c);
|
|
28
|
3019
|
|
50
|
3020 ngx_destroy_pool(pool);
|
|
0
|
3021 }
|
|
|
3022
|
|
|
3023
|
|
50
|
3024 static u_char *
|
|
|
3025 ngx_http_log_error(ngx_log_t *log, u_char *buf, size_t len)
|
|
0
|
3026 {
|
|
32
|
3027 u_char *p;
|
|
54
|
3028 ngx_http_request_t *r;
|
|
32
|
3029 ngx_http_log_ctx_t *ctx;
|
|
10
|
3030
|
|
32
|
3031 if (log->action) {
|
|
58
|
3032 p = ngx_snprintf(buf, len, " while %s", log->action);
|
|
10
|
3033 len -= p - buf;
|
|
54
|
3034 buf = p;
|
|
10
|
3035 }
|
|
|
3036
|
|
58
|
3037 ctx = log->data;
|
|
|
3038
|
|
362
|
3039 p = ngx_snprintf(buf, len, ", client: %V", &ctx->connection->addr_text);
|
|
58
|
3040 len -= p - buf;
|
|
54
|
3041
|
|
|
3042 r = ctx->request;
|
|
|
3043
|
|
58
|
3044 if (r) {
|
|
214
|
3045 return r->log_handler(r, ctx->current_request, p, len);
|
|
362
|
3046
|
|
|
3047 } else {
|
|
|
3048 p = ngx_snprintf(p, len, ", server: %V",
|
|
|
3049 &ctx->connection->listening->addr_text);
|
|
0
|
3050 }
|
|
10
|
3051
|
|
58
|
3052 return p;
|
|
|
3053 }
|
|
|
3054
|
|
|
3055
|
|
|
3056 static u_char *
|
|
214
|
3057 ngx_http_log_error_handler(ngx_http_request_t *r, ngx_http_request_t *sr,
|
|
|
3058 u_char *buf, size_t len)
|
|
58
|
3059 {
|
|
362
|
3060 char *uri_separator;
|
|
|
3061 u_char *p;
|
|
|
3062 ngx_http_upstream_t *u;
|
|
|
3063 ngx_http_core_srv_conf_t *cscf;
|
|
|
3064
|
|
|
3065 cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
|
|
|
3066
|
|
|
3067 p = ngx_snprintf(buf, len, ", server: %V", &cscf->server_name);
|
|
|
3068 len -= p - buf;
|
|
|
3069 buf = p;
|
|
52
|
3070
|
|
348
|
3071 if (r->request_line.data == NULL && r->request_start) {
|
|
|
3072 for (p = r->request_start; p < r->header_in->last; p++) {
|
|
|
3073 if (*p == CR || *p == LF) {
|
|
|
3074 break;
|
|
|
3075 }
|
|
|
3076 }
|
|
|
3077
|
|
|
3078 r->request_line.len = p - r->request_start;
|
|
|
3079 r->request_line.data = r->request_start;
|
|
|
3080 }
|
|
|
3081
|
|
|
3082 if (r->request_line.len) {
|
|
|
3083 p = ngx_snprintf(buf, len, ", request: \"%V\"", &r->request_line);
|
|
54
|
3084 len -= p - buf;
|
|
|
3085 buf = p;
|
|
10
|
3086 }
|
|
|
3087
|
|
214
|
3088 if (r != sr) {
|
|
|
3089 p = ngx_snprintf(buf, len, ", subrequest: \"%V\"", &sr->uri);
|
|
|
3090 len -= p - buf;
|
|
|
3091 buf = p;
|
|
|
3092 }
|
|
|
3093
|
|
|
3094 u = sr->upstream;
|
|
|
3095
|
|
260
|
3096 if (u && u->peer.name) {
|
|
|
3097
|
|
|
3098 uri_separator = "";
|
|
|
3099
|
|
|
3100 #if (NGX_HAVE_UNIX_DOMAIN)
|
|
|
3101 if (u->peer.sockaddr && u->peer.sockaddr->sa_family == AF_UNIX) {
|
|
|
3102 uri_separator = ":";
|
|
|
3103 }
|
|
|
3104 #endif
|
|
214
|
3105
|
|
|
3106 p = ngx_snprintf(buf, len, ", upstream: \"%V%V%s%V\"",
|
|
348
|
3107 &u->schema, u->peer.name,
|
|
260
|
3108 uri_separator, &u->uri);
|
|
214
|
3109 len -= p - buf;
|
|
|
3110 buf = p;
|
|
|
3111 }
|
|
|
3112
|
|
54
|
3113 if (r->headers_in.host) {
|
|
|
3114 p = ngx_snprintf(buf, len, ", host: \"%V\"",
|
|
|
3115 &r->headers_in.host->value);
|
|
|
3116 len -= p - buf;
|
|
|
3117 buf = p;
|
|
|
3118 }
|
|
|
3119
|
|
|
3120 if (r->headers_in.referer) {
|
|
|
3121 p = ngx_snprintf(buf, len, ", referrer: \"%V\"",
|
|
|
3122 &r->headers_in.referer->value);
|
|
|
3123 buf = p;
|
|
|
3124 }
|
|
|
3125
|
|
|
3126 return buf;
|
|
|
3127 }
|
