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