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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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506
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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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74
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40 static ngx_int_t ngx_http_set_write_handler(ngx_http_request_t *r);
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58
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41 static void ngx_http_writer(ngx_http_request_t *r);
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426
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42 static void ngx_http_request_finalizer(ngx_http_request_t *r);
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58
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43
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0
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44 static void ngx_http_set_keepalive(ngx_http_request_t *r);
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45 static void ngx_http_keepalive_handler(ngx_event_t *ev);
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46 static void ngx_http_set_lingering_close(ngx_http_request_t *r);
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47 static void ngx_http_lingering_close_handler(ngx_event_t *ev);
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162
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48 static ngx_int_t ngx_http_post_action(ngx_http_request_t *r);
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80
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49 static void ngx_http_close_request(ngx_http_request_t *r, ngx_int_t error);
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118
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50 static void ngx_http_request_done(ngx_http_request_t *r, ngx_int_t error);
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412
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51 static void ngx_http_log_request(ngx_http_request_t *r);
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80
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52 static void ngx_http_close_connection(ngx_connection_t *c);
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0
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53
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32
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54 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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55 static u_char *ngx_http_log_error_handler(ngx_http_request_t *r,
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56 ngx_http_request_t *sr, u_char *buf, size_t len);
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0
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57
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88
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58 #if (NGX_HTTP_SSL)
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59 static void ngx_http_ssl_handshake(ngx_event_t *rev);
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96
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60 static void ngx_http_ssl_handshake_handler(ngx_connection_t *c);
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88
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61 #endif
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62
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0
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63
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54
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64 static char *ngx_http_client_errors[] = {
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65
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66 /* NGX_HTTP_PARSE_INVALID_METHOD */
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67 "client sent invalid method",
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68
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69 /* NGX_HTTP_PARSE_INVALID_REQUEST */
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70 "client sent invalid request",
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71
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72 /* NGX_HTTP_PARSE_INVALID_09_METHOD */
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73 "client sent invalid method in HTTP/0.9 request"
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0
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74 };
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75
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76
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77 ngx_http_header_t ngx_http_headers_in[] = {
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400
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78 { ngx_string("Host"), offsetof(ngx_http_headers_in_t, host),
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79 ngx_http_process_host },
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80
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81 { ngx_string("Connection"), offsetof(ngx_http_headers_in_t, connection),
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82 ngx_http_process_connection },
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58
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83
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0
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84 { ngx_string("If-Modified-Since"),
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58
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85 offsetof(ngx_http_headers_in_t, if_modified_since),
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332
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86 ngx_http_process_unique_header_line },
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58
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87
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400
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88 { ngx_string("User-Agent"), offsetof(ngx_http_headers_in_t, user_agent),
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89 ngx_http_process_user_agent },
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58
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90
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91 { ngx_string("Referer"), offsetof(ngx_http_headers_in_t, referer),
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92 ngx_http_process_header_line },
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93
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0
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94 { ngx_string("Content-Length"),
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58
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95 offsetof(ngx_http_headers_in_t, content_length),
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72
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96 ngx_http_process_unique_header_line },
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58
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97
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28
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98 { ngx_string("Content-Type"),
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58
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99 offsetof(ngx_http_headers_in_t, content_type),
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100 ngx_http_process_header_line },
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101
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102 { ngx_string("Range"), offsetof(ngx_http_headers_in_t, range),
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103 ngx_http_process_header_line },
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104
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346
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105 { ngx_string("If-Range"),
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106 offsetof(ngx_http_headers_in_t, if_range),
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107 ngx_http_process_unique_header_line },
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108
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130
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109 { ngx_string("Transfer-Encoding"),
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110 offsetof(ngx_http_headers_in_t, transfer_encoding),
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111 ngx_http_process_header_line },
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112
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384
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113 { ngx_string("Expect"),
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114 offsetof(ngx_http_headers_in_t, expect),
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115 ngx_http_process_unique_header_line },
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116
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0
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117 #if (NGX_HTTP_GZIP)
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118 { ngx_string("Accept-Encoding"),
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58
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119 offsetof(ngx_http_headers_in_t, accept_encoding),
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120 ngx_http_process_header_line },
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121
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122 { ngx_string("Via"), offsetof(ngx_http_headers_in_t, via),
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123 ngx_http_process_header_line },
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0
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124 #endif
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125
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126 { ngx_string("Authorization"),
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58
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127 offsetof(ngx_http_headers_in_t, authorization),
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72
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128 ngx_http_process_unique_header_line },
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58
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129
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130 { ngx_string("Keep-Alive"), offsetof(ngx_http_headers_in_t, keep_alive),
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131 ngx_http_process_header_line },
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0
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132
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502
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133 #if (NGX_HTTP_PROXY || NGX_HTTP_REALIP || NGX_HTTP_GEO)
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0
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134 { ngx_string("X-Forwarded-For"),
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58
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135 offsetof(ngx_http_headers_in_t, x_forwarded_for),
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136 ngx_http_process_header_line },
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0
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137 #endif
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28
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138
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122
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139 #if (NGX_HTTP_REALIP)
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140 { ngx_string("X-Real-IP"),
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141 offsetof(ngx_http_headers_in_t, x_real_ip),
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142 ngx_http_process_header_line },
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143 #endif
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144
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38
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145 #if (NGX_HTTP_HEADERS)
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58
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146 { ngx_string("Accept"), offsetof(ngx_http_headers_in_t, accept),
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147 ngx_http_process_header_line },
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148
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38
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149 { ngx_string("Accept-Language"),
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58
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150 offsetof(ngx_http_headers_in_t, accept_language),
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151 ngx_http_process_header_line },
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38
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152 #endif
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153
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186
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154 #if (NGX_HTTP_DAV)
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155 { ngx_string("Depth"), offsetof(ngx_http_headers_in_t, depth),
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156 ngx_http_process_header_line },
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157
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158 { ngx_string("Destination"), offsetof(ngx_http_headers_in_t, destination),
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159 ngx_http_process_header_line },
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230
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160
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276
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161 { ngx_string("Overwrite"), offsetof(ngx_http_headers_in_t, overwrite),
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162 ngx_http_process_header_line },
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163
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230
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164 { ngx_string("Date"), offsetof(ngx_http_headers_in_t, date),
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165 ngx_http_process_header_line },
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186
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166 #endif
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167
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58
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168 { ngx_string("Cookie"), 0, ngx_http_process_cookie },
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169
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170 { ngx_null_string, 0, NULL }
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0
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171 };
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172
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173
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50
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174 void
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175 ngx_http_init_connection(ngx_connection_t *c)
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0
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176 {
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177 ngx_event_t *rev;
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178 ngx_http_log_ctx_t *ctx;
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179
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50
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180 ctx = ngx_palloc(c->pool, sizeof(ngx_http_log_ctx_t));
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181 if (ctx == NULL) {
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0
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182 ngx_http_close_connection(c);
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183 return;
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184 }
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185
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362
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186 ctx->connection = c;
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10
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187 ctx->request = NULL;
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214
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188 ctx->current_request = NULL;
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32
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189
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190 c->log->connection = c->number;
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191 c->log->handler = ngx_http_log_error;
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0
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192 c->log->data = ctx;
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32
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193 c->log->action = "reading client request line";
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194
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0
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195 c->log_error = NGX_ERROR_INFO;
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196
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197 rev = c->read;
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58
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198 rev->handler = ngx_http_init_request;
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118
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199 c->write->handler = ngx_http_empty_handler;
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0
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200
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116
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201 #if (NGX_STAT_STUB)
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498
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202 (void) ngx_atomic_fetch_add(ngx_stat_reading, 1);
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116
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203 #endif
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204
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0
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205 if (rev->ready) {
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206 /* the deferred accept(), rtsig, aio, iocp */
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207
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160
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208 if (ngx_use_accept_mutex) {
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112
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209 ngx_post_event(rev, &ngx_posted_events);
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0
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210 return;
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211 }
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212
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213 ngx_http_init_request(rev);
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214 return;
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215 }
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216
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217 ngx_add_timer(rev, c->listening->post_accept_timeout);
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218
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430
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219 if (ngx_handle_read_event(rev, 0) != NGX_OK) {
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116
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220 #if (NGX_STAT_STUB)
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498
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221 (void) ngx_atomic_fetch_add(ngx_stat_reading, -1);
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116
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222 #endif
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0
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223 ngx_http_close_connection(c);
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224 return;
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225 }
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226 }
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227
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228
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190
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229 static void
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230 ngx_http_init_request(ngx_event_t *rev)
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0
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231 {
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298
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232 ngx_time_t *tp;
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122
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233 ngx_uint_t i;
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234 ngx_connection_t *c;
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235 ngx_http_request_t *r;
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448
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236 struct sockaddr_in *sin;
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237 ngx_http_port_t *port;
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238 ngx_http_in_addr_t *addr;
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122
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239 ngx_http_log_ctx_t *ctx;
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448
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240 ngx_http_addr_conf_t *addr_conf;
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122
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241 ngx_http_connection_t *hc;
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242 ngx_http_core_srv_conf_t *cscf;
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243 ngx_http_core_loc_conf_t *clcf;
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244 ngx_http_core_main_conf_t *cmcf;
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448
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245 #if (NGX_HAVE_INET6)
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246 struct sockaddr_in6 *sin6;
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247 ngx_http_in6_addr_t *addr6;
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248 #endif
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0
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249
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116
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250 #if (NGX_STAT_STUB)
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498
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251 (void) ngx_atomic_fetch_add(ngx_stat_reading, -1);
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116
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252 #endif
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253
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0
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254 c = rev->data;
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255
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256 if (rev->timedout) {
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257 ngx_log_error(NGX_LOG_INFO, c->log, NGX_ETIMEDOUT, "client timed out");
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258
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259 ngx_http_close_connection(c);
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260 return;
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261 }
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262
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496
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263 c->requests++;
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264
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0
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265 hc = c->data;
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266
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116
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267 if (hc == NULL) {
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50
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268 hc = ngx_pcalloc(c->pool, sizeof(ngx_http_connection_t));
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269 if (hc == NULL) {
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0
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270 ngx_http_close_connection(c);
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271 return;
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272 }
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273 }
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274
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275 r = hc->request;
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276
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277 if (r) {
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278 ngx_memzero(r, sizeof(ngx_http_request_t));
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279
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280 r->pipeline = hc->pipeline;
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281
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282 if (hc->nbusy) {
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283 r->header_in = hc->busy[0];
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284 }
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285
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286 } else {
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50
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287 r = ngx_pcalloc(c->pool, sizeof(ngx_http_request_t));
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288 if (r == NULL) {
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0
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289 ngx_http_close_connection(c);
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290 return;
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291 }
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292
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293 hc->request = r;
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294 }
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295
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296 c->data = r;
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297 r->http_connection = hc;
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298
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299 c->sent = 0;
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300 r->signature = NGX_HTTP_MODULE;
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301
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302 /* find the server configuration for the address:port */
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303
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448
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304 port = c->listening->servers;
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305
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362
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306 r->connection = c;
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307
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448
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308 if (port->naddrs > 1) {
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0
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309
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310 /*
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448
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311 * there are several addresses on this port and one of them
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312 * is an "*:port" wildcard so getsockname() in ngx_http_server_addr()
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313 * is required to determine a server address
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0
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314 */
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315
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492
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316 if (ngx_connection_local_sockaddr(c, NULL, 0) != NGX_OK) {
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448
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317 ngx_http_close_connection(c);
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318 return;
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319 }
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320
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321 switch (c->local_sockaddr->sa_family) {
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322
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323 #if (NGX_HAVE_INET6)
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324 case AF_INET6:
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325 sin6 = (struct sockaddr_in6 *) c->local_sockaddr;
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326
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492
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327 addr6 = port->addrs;
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448
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328
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329 /* the last address is "*" */
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330
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331 for (i = 0; i < port->naddrs - 1; i++) {
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332 if (ngx_memcmp(&addr6[i].addr6, &sin6->sin6_addr, 16) == 0) {
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333 break;
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334 }
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335 }
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336
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337 addr_conf = &addr6[i].conf;
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338
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339 break;
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0
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340 #endif
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448
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341
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342 default: /* AF_INET */
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343 sin = (struct sockaddr_in *) c->local_sockaddr;
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344
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345 addr = port->addrs;
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346
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347 /* the last address is "*" */
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348
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349 for (i = 0; i < port->naddrs - 1; i++) {
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350 if (addr[i].addr == sin->sin_addr.s_addr) {
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351 break;
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352 }
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0
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353 }
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448
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354
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355 addr_conf = &addr[i].conf;
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356
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357 break;
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0
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358 }
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359
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360 } else {
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448
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361
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|
|
362 switch (c->local_sockaddr->sa_family) {
|
|
|
363
|
|
|
364 #if (NGX_HAVE_INET6)
|
|
|
365 case AF_INET6:
|
|
492
|
366 addr6 = port->addrs;
|
|
448
|
367 addr_conf = &addr6[0].conf;
|
|
|
368 break;
|
|
|
369 #endif
|
|
|
370
|
|
|
371 default: /* AF_INET */
|
|
|
372 addr = port->addrs;
|
|
|
373 addr_conf = &addr[0].conf;
|
|
|
374 break;
|
|
|
375 }
|
|
0
|
376 }
|
|
|
377
|
|
478
|
378 r->virtual_names = addr_conf->virtual_names;
|
|
|
379
|
|
0
|
380 /* the default server configuration for the address:port */
|
|
448
|
381 cscf = addr_conf->core_srv_conf;
|
|
0
|
382
|
|
|
383 r->main_conf = cscf->ctx->main_conf;
|
|
|
384 r->srv_conf = cscf->ctx->srv_conf;
|
|
|
385 r->loc_conf = cscf->ctx->loc_conf;
|
|
|
386
|
|
58
|
387 rev->handler = ngx_http_process_request_line;
|
|
502
|
388 r->read_event_handler = ngx_http_block_reading;
|
|
0
|
389
|
|
|
390 #if (NGX_HTTP_SSL)
|
|
|
391
|
|
356
|
392 {
|
|
|
393 ngx_http_ssl_srv_conf_t *sscf;
|
|
|
394
|
|
0
|
395 sscf = ngx_http_get_module_srv_conf(r, ngx_http_ssl_module);
|
|
448
|
396 if (sscf->enable || addr_conf->ssl) {
|
|
0
|
397
|
|
|
398 if (c->ssl == NULL) {
|
|
404
|
399
|
|
|
400 c->log->action = "SSL handshaking";
|
|
|
401
|
|
448
|
402 if (addr_conf->ssl && sscf->ssl.ctx == NULL) {
|
|
404
|
403 ngx_log_error(NGX_LOG_ERR, c->log, 0,
|
|
|
404 "no \"ssl_certificate\" is defined "
|
|
|
405 "in server listening on SSL port");
|
|
|
406 ngx_http_close_connection(c);
|
|
|
407 return;
|
|
|
408 }
|
|
|
409
|
|
96
|
410 if (ngx_ssl_create_connection(&sscf->ssl, c, NGX_SSL_BUFFER)
|
|
454
|
411 != NGX_OK)
|
|
0
|
412 {
|
|
|
413 ngx_http_close_connection(c);
|
|
|
414 return;
|
|
|
415 }
|
|
|
416
|
|
58
|
417 rev->handler = ngx_http_ssl_handshake;
|
|
0
|
418 }
|
|
|
419
|
|
62
|
420 r->main_filter_need_in_memory = 1;
|
|
0
|
421 }
|
|
356
|
422 }
|
|
0
|
423
|
|
|
424 #endif
|
|
|
425
|
|
|
426 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
484
|
427 c->log->file = clcf->error_log->file;
|
|
0
|
428 if (!(c->log->log_level & NGX_LOG_DEBUG_CONNECTION)) {
|
|
484
|
429 c->log->log_level = clcf->error_log->log_level;
|
|
0
|
430 }
|
|
|
431
|
|
|
432 if (c->buffer == NULL) {
|
|
|
433 c->buffer = ngx_create_temp_buf(c->pool,
|
|
|
434 cscf->client_header_buffer_size);
|
|
|
435 if (c->buffer == NULL) {
|
|
|
436 ngx_http_close_connection(c);
|
|
|
437 return;
|
|
|
438 }
|
|
|
439 }
|
|
|
440
|
|
|
441 if (r->header_in == NULL) {
|
|
|
442 r->header_in = c->buffer;
|
|
|
443 }
|
|
|
444
|
|
50
|
445 r->pool = ngx_create_pool(cscf->request_pool_size, c->log);
|
|
|
446 if (r->pool == NULL) {
|
|
0
|
447 ngx_http_close_connection(c);
|
|
|
448 return;
|
|
|
449 }
|
|
|
450
|
|
|
451
|
|
|
452 if (ngx_list_init(&r->headers_out.headers, r->pool, 20,
|
|
130
|
453 sizeof(ngx_table_elt_t))
|
|
454
|
454 != NGX_OK)
|
|
0
|
455 {
|
|
502
|
456 ngx_destroy_pool(r->pool);
|
|
|
457 ngx_http_close_connection(c);
|
|
0
|
458 return;
|
|
|
459 }
|
|
|
460
|
|
|
461 r->ctx = ngx_pcalloc(r->pool, sizeof(void *) * ngx_http_max_module);
|
|
|
462 if (r->ctx == NULL) {
|
|
502
|
463 ngx_destroy_pool(r->pool);
|
|
|
464 ngx_http_close_connection(c);
|
|
0
|
465 return;
|
|
|
466 }
|
|
|
467
|
|
122
|
468 cmcf = ngx_http_get_module_main_conf(r, ngx_http_core_module);
|
|
|
469
|
|
|
470 r->variables = ngx_pcalloc(r->pool, cmcf->variables.nelts
|
|
|
471 * sizeof(ngx_http_variable_value_t));
|
|
|
472 if (r->variables == NULL) {
|
|
502
|
473 ngx_destroy_pool(r->pool);
|
|
|
474 ngx_http_close_connection(c);
|
|
122
|
475 return;
|
|
|
476 }
|
|
|
477
|
|
0
|
478 c->single_connection = 1;
|
|
132
|
479 c->destroyed = 0;
|
|
|
480
|
|
102
|
481 r->main = r;
|
|
|
482
|
|
298
|
483 tp = ngx_timeofday();
|
|
|
484 r->start_sec = tp->sec;
|
|
|
485 r->start_msec = tp->msec;
|
|
46
|
486
|
|
180
|
487 r->method = NGX_HTTP_UNKNOWN;
|
|
|
488
|
|
0
|
489 r->headers_in.content_length_n = -1;
|
|
|
490 r->headers_in.keep_alive_n = -1;
|
|
|
491 r->headers_out.content_length_n = -1;
|
|
|
492 r->headers_out.last_modified_time = -1;
|
|
|
493
|
|
226
|
494 r->uri_changes = NGX_HTTP_MAX_URI_CHANGES + 1;
|
|
|
495 r->subrequests = NGX_HTTP_MAX_SUBREQUESTS + 1;
|
|
|
496
|
|
0
|
497 r->http_state = NGX_HTTP_READING_REQUEST_STATE;
|
|
|
498
|
|
54
|
499 ctx = c->log->data;
|
|
|
500 ctx->request = r;
|
|
214
|
501 ctx->current_request = r;
|
|
58
|
502 r->log_handler = ngx_http_log_error_handler;
|
|
54
|
503
|
|
0
|
504 #if (NGX_STAT_STUB)
|
|
498
|
505 (void) ngx_atomic_fetch_add(ngx_stat_reading, 1);
|
|
26
|
506 r->stat_reading = 1;
|
|
498
|
507 (void) ngx_atomic_fetch_add(ngx_stat_requests, 1);
|
|
0
|
508 #endif
|
|
|
509
|
|
58
|
510 rev->handler(rev);
|
|
0
|
511 }
|
|
|
512
|
|
|
513
|
|
|
514 #if (NGX_HTTP_SSL)
|
|
|
515
|
|
50
|
516 static void
|
|
|
517 ngx_http_ssl_handshake(ngx_event_t *rev)
|
|
0
|
518 {
|
|
10
|
519 u_char buf[1];
|
|
|
520 ssize_t n;
|
|
0
|
521 ngx_int_t rc;
|
|
|
522 ngx_connection_t *c;
|
|
|
523 ngx_http_request_t *r;
|
|
|
524
|
|
|
525 c = rev->data;
|
|
|
526 r = c->data;
|
|
|
527
|
|
|
528 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, rev->log, 0,
|
|
|
529 "http check ssl handshake");
|
|
|
530
|
|
|
531 if (rev->timedout) {
|
|
54
|
532 ngx_log_error(NGX_LOG_INFO, c->log, NGX_ETIMEDOUT, "client timed out");
|
|
|
533 c->timedout = 1;
|
|
|
534 ngx_http_close_request(r, NGX_HTTP_REQUEST_TIME_OUT);
|
|
0
|
535 return;
|
|
|
536 }
|
|
|
537
|
|
132
|
538 n = recv(c->fd, (char *) buf, 1, MSG_PEEK);
|
|
0
|
539
|
|
|
540 if (n == -1 && ngx_socket_errno == NGX_EAGAIN) {
|
|
364
|
541
|
|
|
542 if (!rev->timer_set) {
|
|
|
543 ngx_add_timer(rev, c->listening->post_accept_timeout);
|
|
|
544 }
|
|
|
545
|
|
430
|
546 if (ngx_handle_read_event(rev, 0) != NGX_OK) {
|
|
364
|
547 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
548 }
|
|
|
549
|
|
0
|
550 return;
|
|
|
551 }
|
|
|
552
|
|
|
553 if (n == 1) {
|
|
512
|
554 if (buf[0] & 0x80 /* SSLv2 */ || buf[0] == 0x16 /* SSLv3/TLSv1 */) {
|
|
0
|
555 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, rev->log, 0,
|
|
10
|
556 "https ssl handshake: 0x%02Xd", buf[0]);
|
|
0
|
557
|
|
|
558 rc = ngx_ssl_handshake(c);
|
|
|
559
|
|
96
|
560 if (rc == NGX_AGAIN) {
|
|
362
|
561
|
|
|
562 if (!rev->timer_set) {
|
|
|
563 ngx_add_timer(rev, c->listening->post_accept_timeout);
|
|
|
564 }
|
|
|
565
|
|
96
|
566 c->ssl->handler = ngx_http_ssl_handshake_handler;
|
|
0
|
567 return;
|
|
|
568 }
|
|
|
569
|
|
96
|
570 ngx_http_ssl_handshake_handler(c);
|
|
|
571
|
|
|
572 return;
|
|
0
|
573
|
|
|
574 } else {
|
|
|
575 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, rev->log, 0,
|
|
|
576 "plain http");
|
|
|
577
|
|
|
578 r->plain_http = 1;
|
|
|
579 }
|
|
|
580 }
|
|
|
581
|
|
404
|
582 c->log->action = "reading client request line";
|
|
|
583
|
|
58
|
584 rev->handler = ngx_http_process_request_line;
|
|
0
|
585 ngx_http_process_request_line(rev);
|
|
|
586 }
|
|
|
587
|
|
96
|
588
|
|
|
589 static void
|
|
|
590 ngx_http_ssl_handshake_handler(ngx_connection_t *c)
|
|
|
591 {
|
|
|
592 ngx_http_request_t *r;
|
|
|
593
|
|
|
594 if (c->ssl->handshaked) {
|
|
|
595
|
|
|
596 /*
|
|
|
597 * The majority of browsers do not send the "close notify" alert.
|
|
|
598 * Among them are MSIE, old Mozilla, Netscape 4, Konqueror,
|
|
|
599 * and Links. And what is more, MSIE ignores the server's alert.
|
|
|
600 *
|
|
|
601 * Opera and recent Mozilla send the alert.
|
|
|
602 */
|
|
|
603
|
|
|
604 c->ssl->no_wait_shutdown = 1;
|
|
|
605
|
|
|
606 c->read->handler = ngx_http_process_request_line;
|
|
|
607 /* STUB: epoll edge */ c->write->handler = ngx_http_empty_handler;
|
|
|
608
|
|
|
609 ngx_http_process_request_line(c->read);
|
|
|
610
|
|
|
611 return;
|
|
|
612 }
|
|
|
613
|
|
|
614 r = c->data;
|
|
|
615
|
|
|
616 ngx_http_close_request(r, NGX_HTTP_BAD_REQUEST);
|
|
|
617
|
|
|
618 return;
|
|
|
619 }
|
|
|
620
|
|
306
|
621 #ifdef SSL_CTRL_SET_TLSEXT_HOSTNAME
|
|
|
622
|
|
|
623 int
|
|
|
624 ngx_http_ssl_servername(ngx_ssl_conn_t *ssl_conn, int *ad, void *arg)
|
|
|
625 {
|
|
400
|
626 size_t len;
|
|
506
|
627 u_char *host;
|
|
306
|
628 const char *servername;
|
|
|
629 ngx_connection_t *c;
|
|
|
630 ngx_http_request_t *r;
|
|
|
631 ngx_http_ssl_srv_conf_t *sscf;
|
|
|
632
|
|
|
633 servername = SSL_get_servername(ssl_conn, TLSEXT_NAMETYPE_host_name);
|
|
|
634
|
|
|
635 if (servername == NULL) {
|
|
|
636 return SSL_TLSEXT_ERR_NOACK;
|
|
|
637 }
|
|
|
638
|
|
|
639 c = ngx_ssl_get_connection(ssl_conn);
|
|
|
640
|
|
|
641 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
|
642 "SSL server name: \"%s\"", servername);
|
|
|
643
|
|
400
|
644 len = ngx_strlen(servername);
|
|
|
645
|
|
|
646 if (len == 0) {
|
|
|
647 return SSL_TLSEXT_ERR_NOACK;
|
|
|
648 }
|
|
|
649
|
|
306
|
650 r = c->data;
|
|
|
651
|
|
506
|
652 host = (u_char *) servername;
|
|
|
653
|
|
|
654 len = ngx_http_validate_host(r, &host, len, 1);
|
|
|
655
|
|
|
656 if (len <= 0) {
|
|
|
657 return SSL_TLSEXT_ERR_NOACK;
|
|
|
658 }
|
|
|
659
|
|
|
660 if (ngx_http_find_virtual_server(r, host, len) != NGX_OK) {
|
|
306
|
661 return SSL_TLSEXT_ERR_NOACK;
|
|
|
662 }
|
|
|
663
|
|
|
664 sscf = ngx_http_get_module_srv_conf(r, ngx_http_ssl_module);
|
|
|
665
|
|
|
666 SSL_set_SSL_CTX(ssl_conn, sscf->ssl.ctx);
|
|
|
667
|
|
|
668 return SSL_TLSEXT_ERR_OK;
|
|
|
669 }
|
|
|
670
|
|
|
671 #endif
|
|
96
|
672
|
|
0
|
673 #endif
|
|
|
674
|
|
|
675
|
|
50
|
676 static void
|
|
|
677 ngx_http_process_request_line(ngx_event_t *rev)
|
|
0
|
678 {
|
|
506
|
679 u_char *host;
|
|
342
|
680 ssize_t n;
|
|
|
681 ngx_int_t rc, rv;
|
|
|
682 ngx_connection_t *c;
|
|
|
683 ngx_http_request_t *r;
|
|
|
684 ngx_http_core_srv_conf_t *cscf;
|
|
0
|
685
|
|
|
686 c = rev->data;
|
|
|
687 r = c->data;
|
|
|
688
|
|
|
689 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, rev->log, 0,
|
|
|
690 "http process request line");
|
|
|
691
|
|
|
692 if (rev->timedout) {
|
|
54
|
693 ngx_log_error(NGX_LOG_INFO, c->log, NGX_ETIMEDOUT, "client timed out");
|
|
|
694 c->timedout = 1;
|
|
|
695 ngx_http_close_request(r, NGX_HTTP_REQUEST_TIME_OUT);
|
|
0
|
696 return;
|
|
|
697 }
|
|
|
698
|
|
|
699 rc = NGX_AGAIN;
|
|
|
700
|
|
|
701 for ( ;; ) {
|
|
|
702
|
|
|
703 if (rc == NGX_AGAIN) {
|
|
|
704 n = ngx_http_read_request_header(r);
|
|
|
705
|
|
|
706 if (n == NGX_AGAIN || n == NGX_ERROR) {
|
|
|
707 return;
|
|
|
708 }
|
|
|
709 }
|
|
|
710
|
|
|
711 rc = ngx_http_parse_request_line(r, r->header_in);
|
|
|
712
|
|
|
713 if (rc == NGX_OK) {
|
|
|
714
|
|
|
715 /* the request line has been parsed successfully */
|
|
|
716
|
|
10
|
717 r->request_line.len = r->request_end - r->request_start;
|
|
|
718 r->request_line.data = r->request_start;
|
|
|
719
|
|
0
|
720
|
|
|
721 if (r->args_start) {
|
|
|
722 r->uri.len = r->args_start - 1 - r->uri_start;
|
|
|
723 } else {
|
|
|
724 r->uri.len = r->uri_end - r->uri_start;
|
|
|
725 }
|
|
|
726
|
|
18
|
727
|
|
2
|
728 if (r->complex_uri || r->quoted_uri) {
|
|
10
|
729
|
|
382
|
730 r->uri.data = ngx_pnalloc(r->pool, r->uri.len + 1);
|
|
50
|
731 if (r->uri.data == NULL) {
|
|
10
|
732 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
733 return;
|
|
|
734 }
|
|
|
735
|
|
342
|
736 cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
|
|
|
737
|
|
|
738 rc = ngx_http_parse_complex_uri(r, cscf->merge_slashes);
|
|
0
|
739
|
|
54
|
740 if (rc == NGX_HTTP_PARSE_INVALID_REQUEST) {
|
|
|
741 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
|
742 "client sent invalid request");
|
|
|
743 ngx_http_finalize_request(r, NGX_HTTP_BAD_REQUEST);
|
|
0
|
744 return;
|
|
|
745 }
|
|
|
746
|
|
|
747 } else {
|
|
10
|
748 r->uri.data = r->uri_start;
|
|
0
|
749 }
|
|
|
750
|
|
18
|
751
|
|
10
|
752 r->unparsed_uri.len = r->uri_end - r->uri_start;
|
|
|
753 r->unparsed_uri.data = r->uri_start;
|
|
|
754
|
|
512
|
755 r->valid_unparsed_uri = 1;
|
|
0
|
756
|
|
58
|
757 r->method_name.len = r->method_end - r->request_start + 1;
|
|
|
758 r->method_name.data = r->request_line.data;
|
|
0
|
759
|
|
10
|
760
|
|
28
|
761 if (r->http_protocol.data) {
|
|
|
762 r->http_protocol.len = r->request_end - r->http_protocol.data;
|
|
|
763 }
|
|
|
764
|
|
|
765
|
|
0
|
766 if (r->uri_ext) {
|
|
|
767 if (r->args_start) {
|
|
|
768 r->exten.len = r->args_start - 1 - r->uri_ext;
|
|
|
769 } else {
|
|
|
770 r->exten.len = r->uri_end - r->uri_ext;
|
|
|
771 }
|
|
|
772
|
|
10
|
773 r->exten.data = r->uri_ext;
|
|
0
|
774 }
|
|
|
775
|
|
10
|
776
|
|
0
|
777 if (r->args_start && r->uri_end > r->args_start) {
|
|
|
778 r->args.len = r->uri_end - r->args_start;
|
|
10
|
779 r->args.data = r->args_start;
|
|
0
|
780 }
|
|
|
781
|
|
500
|
782 #if (NGX_WIN32)
|
|
|
783 {
|
|
|
784 u_char *p;
|
|
|
785
|
|
|
786 p = r->uri.data + r->uri.len - 1;
|
|
|
787
|
|
508
|
788 while (p > r->uri.data) {
|
|
|
789
|
|
|
790 if (*p == ' ') {
|
|
|
791 p--;
|
|
|
792 continue;
|
|
|
793 }
|
|
|
794
|
|
|
795 if (*p == '.') {
|
|
|
796 p--;
|
|
|
797 continue;
|
|
506
|
798 }
|
|
500
|
799
|
|
508
|
800 if (ngx_strncasecmp(p - 6, (u_char *) "::$data", 7) == 0) {
|
|
|
801 p -= 7;
|
|
|
802 continue;
|
|
|
803 }
|
|
|
804
|
|
|
805 break;
|
|
|
806 }
|
|
|
807
|
|
|
808 if (p != r->uri.data + r->uri.len - 1) {
|
|
500
|
809 r->uri.len = p + 1 - r->uri.data;
|
|
|
810 ngx_http_set_exten(r);
|
|
|
811 }
|
|
508
|
812
|
|
500
|
813 }
|
|
|
814 #endif
|
|
10
|
815
|
|
|
816 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
|
817 "http request line: \"%V\"", &r->request_line);
|
|
|
818
|
|
0
|
819 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
10
|
820 "http uri: \"%V\"", &r->uri);
|
|
0
|
821
|
|
|
822 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
10
|
823 "http args: \"%V\"", &r->args);
|
|
0
|
824
|
|
|
825 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
10
|
826 "http exten: \"%V\"", &r->exten);
|
|
|
827
|
|
376
|
828 if (r->host_start && r->host_end) {
|
|
506
|
829
|
|
|
830 host = r->host_start;
|
|
|
831 n = ngx_http_validate_host(r, &host,
|
|
|
832 r->host_end - r->host_start, 0);
|
|
|
833
|
|
|
834 if (n == 0) {
|
|
376
|
835 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
|
836 "client sent invalid host in request line");
|
|
|
837 ngx_http_finalize_request(r, NGX_HTTP_BAD_REQUEST);
|
|
|
838 return;
|
|
|
839 }
|
|
|
840
|
|
506
|
841 if (n < 0) {
|
|
|
842 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
843 return;
|
|
|
844 }
|
|
|
845
|
|
376
|
846 r->headers_in.server.len = n;
|
|
506
|
847 r->headers_in.server.data = host;
|
|
376
|
848 }
|
|
|
849
|
|
0
|
850 if (r->http_version < NGX_HTTP_VERSION_10) {
|
|
376
|
851
|
|
|
852 if (ngx_http_find_virtual_server(r, r->headers_in.server.data,
|
|
|
853 r->headers_in.server.len)
|
|
|
854 == NGX_ERROR)
|
|
|
855 {
|
|
|
856 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
857 return;
|
|
|
858 }
|
|
|
859
|
|
308
|
860 ngx_http_process_request(r);
|
|
0
|
861 return;
|
|
|
862 }
|
|
|
863
|
|
|
864
|
|
|
865 if (ngx_list_init(&r->headers_in.headers, r->pool, 20,
|
|
130
|
866 sizeof(ngx_table_elt_t))
|
|
454
|
867 != NGX_OK)
|
|
0
|
868 {
|
|
|
869 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
870 return;
|
|
|
871 }
|
|
|
872
|
|
|
873
|
|
48
|
874 if (ngx_array_init(&r->headers_in.cookies, r->pool, 2,
|
|
130
|
875 sizeof(ngx_table_elt_t *))
|
|
454
|
876 != NGX_OK)
|
|
0
|
877 {
|
|
|
878 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
879 return;
|
|
|
880 }
|
|
|
881
|
|
32
|
882 c->log->action = "reading client request headers";
|
|
0
|
883
|
|
58
|
884 rev->handler = ngx_http_process_request_headers;
|
|
0
|
885 ngx_http_process_request_headers(rev);
|
|
|
886
|
|
|
887 return;
|
|
54
|
888 }
|
|
|
889
|
|
|
890 if (rc != NGX_AGAIN) {
|
|
0
|
891
|
|
|
892 /* there was error while a request line parsing */
|
|
|
893
|
|
54
|
894 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
|
895 ngx_http_client_errors[rc - NGX_HTTP_CLIENT_ERROR]);
|
|
|
896 ngx_http_finalize_request(r, NGX_HTTP_BAD_REQUEST);
|
|
0
|
897 return;
|
|
|
898 }
|
|
|
899
|
|
|
900 /* NGX_AGAIN: a request line parsing is still incomplete */
|
|
|
901
|
|
|
902 if (r->header_in->pos == r->header_in->end) {
|
|
|
903
|
|
|
904 rv = ngx_http_alloc_large_header_buffer(r, 1);
|
|
|
905
|
|
|
906 if (rv == NGX_ERROR) {
|
|
|
907 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
908 return;
|
|
|
909 }
|
|
|
910
|
|
|
911 if (rv == NGX_DECLINED) {
|
|
54
|
912 r->request_line.len = r->header_in->end - r->request_start;
|
|
|
913 r->request_line.data = r->request_start;
|
|
|
914
|
|
|
915 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
|
916 "client sent too long URI");
|
|
|
917 ngx_http_finalize_request(r, NGX_HTTP_REQUEST_URI_TOO_LARGE);
|
|
0
|
918 return;
|
|
|
919 }
|
|
|
920 }
|
|
|
921 }
|
|
|
922 }
|
|
|
923
|
|
|
924
|
|
50
|
925 static void
|
|
|
926 ngx_http_process_request_headers(ngx_event_t *rev)
|
|
0
|
927 {
|
|
500
|
928 u_char *p;
|
|
|
929 size_t len;
|
|
56
|
930 ssize_t n;
|
|
|
931 ngx_int_t rc, rv;
|
|
58
|
932 ngx_table_elt_t *h;
|
|
56
|
933 ngx_connection_t *c;
|
|
|
934 ngx_http_header_t *hh;
|
|
|
935 ngx_http_request_t *r;
|
|
60
|
936 ngx_http_core_srv_conf_t *cscf;
|
|
56
|
937 ngx_http_core_main_conf_t *cmcf;
|
|
0
|
938
|
|
|
939 c = rev->data;
|
|
|
940 r = c->data;
|
|
|
941
|
|
|
942 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, rev->log, 0,
|
|
|
943 "http process request header line");
|
|
|
944
|
|
|
945 if (rev->timedout) {
|
|
54
|
946 ngx_log_error(NGX_LOG_INFO, c->log, NGX_ETIMEDOUT, "client timed out");
|
|
|
947 c->timedout = 1;
|
|
|
948 ngx_http_close_request(r, NGX_HTTP_REQUEST_TIME_OUT);
|
|
0
|
949 return;
|
|
|
950 }
|
|
|
951
|
|
56
|
952 cmcf = ngx_http_get_module_main_conf(r, ngx_http_core_module);
|
|
60
|
953 cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
|
|
56
|
954
|
|
0
|
955 rc = NGX_AGAIN;
|
|
|
956
|
|
|
957 for ( ;; ) {
|
|
|
958
|
|
|
959 if (rc == NGX_AGAIN) {
|
|
|
960
|
|
|
961 if (r->header_in->pos == r->header_in->end) {
|
|
|
962
|
|
|
963 rv = ngx_http_alloc_large_header_buffer(r, 0);
|
|
|
964
|
|
|
965 if (rv == NGX_ERROR) {
|
|
|
966 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
967 return;
|
|
|
968 }
|
|
|
969
|
|
|
970 if (rv == NGX_DECLINED) {
|
|
500
|
971 p = r->header_name_start;
|
|
|
972
|
|
506
|
973 if (p == NULL) {
|
|
|
974 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
|
975 "client sent too large request");
|
|
|
976 ngx_http_finalize_request(r, NGX_HTTP_BAD_REQUEST);
|
|
|
977 return;
|
|
|
978 }
|
|
|
979
|
|
|
980 len = r->header_in->end - p;
|
|
|
981
|
|
500
|
982 if (len > NGX_MAX_ERROR_STR - 300) {
|
|
|
983 len = NGX_MAX_ERROR_STR - 300;
|
|
|
984 p[len++] = '.'; p[len++] = '.'; p[len++] = '.';
|
|
80
|
985 }
|
|
|
986
|
|
54
|
987 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
500
|
988 "client sent too long header line: \"%*s\"",
|
|
|
989 len, r->header_name_start);
|
|
330
|
990 ngx_http_finalize_request(r, NGX_HTTP_BAD_REQUEST);
|
|
0
|
991 return;
|
|
|
992 }
|
|
|
993 }
|
|
|
994
|
|
|
995 n = ngx_http_read_request_header(r);
|
|
|
996
|
|
|
997 if (n == NGX_AGAIN || n == NGX_ERROR) {
|
|
|
998 return;
|
|
|
999 }
|
|
|
1000 }
|
|
|
1001
|
|
412
|
1002 rc = ngx_http_parse_header_line(r, r->header_in,
|
|
|
1003 cscf->underscores_in_headers);
|
|
0
|
1004
|
|
|
1005 if (rc == NGX_OK) {
|
|
|
1006
|
|
60
|
1007 if (r->invalid_header && cscf->ignore_invalid_headers) {
|
|
52
|
1008
|
|
|
1009 /* there was error while a header line parsing */
|
|
|
1010
|
|
54
|
1011 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
500
|
1012 "client sent invalid header line: \"%*s\"",
|
|
|
1013 r->header_end - r->header_name_start,
|
|
|
1014 r->header_name_start);
|
|
52
|
1015 continue;
|
|
|
1016 }
|
|
|
1017
|
|
0
|
1018 /* a header line has been parsed successfully */
|
|
|
1019
|
|
50
|
1020 h = ngx_list_push(&r->headers_in.headers);
|
|
|
1021 if (h == NULL) {
|
|
0
|
1022 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
1023 return;
|
|
|
1024 }
|
|
|
1025
|
|
56
|
1026 h->hash = r->header_hash;
|
|
|
1027
|
|
0
|
1028 h->key.len = r->header_name_end - r->header_name_start;
|
|
|
1029 h->key.data = r->header_name_start;
|
|
|
1030 h->key.data[h->key.len] = '\0';
|
|
|
1031
|
|
|
1032 h->value.len = r->header_end - r->header_start;
|
|
|
1033 h->value.data = r->header_start;
|
|
|
1034 h->value.data[h->value.len] = '\0';
|
|
|
1035
|
|
382
|
1036 h->lowcase_key = ngx_pnalloc(r->pool, h->key.len);
|
|
198
|
1037 if (h->lowcase_key == NULL) {
|
|
|
1038 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
1039 return;
|
|
|
1040 }
|
|
|
1041
|
|
|
1042 if (h->key.len == r->lowcase_index) {
|
|
|
1043 ngx_memcpy(h->lowcase_key, r->lowcase_header, h->key.len);
|
|
|
1044
|
|
|
1045 } else {
|
|
392
|
1046 ngx_strlow(h->lowcase_key, h->key.data, h->key.len);
|
|
0
|
1047 }
|
|
|
1048
|
|
198
|
1049 hh = ngx_hash_find(&cmcf->headers_in_hash, h->hash,
|
|
|
1050 h->lowcase_key, h->key.len);
|
|
|
1051
|
|
|
1052 if (hh && hh->handler(r, h, hh->offset) != NGX_OK) {
|
|
|
1053 return;
|
|
|
1054 }
|
|
|
1055
|
|
0
|
1056 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
10
|
1057 "http header: \"%V: %V\"",
|
|
|
1058 &h->key, &h->value);
|
|
0
|
1059
|
|
|
1060 continue;
|
|
54
|
1061 }
|
|
|
1062
|
|
|
1063 if (rc == NGX_HTTP_PARSE_HEADER_DONE) {
|
|
0
|
1064
|
|
|
1065 /* a whole header has been parsed successfully */
|
|
|
1066
|
|
|
1067 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1068 "http header done");
|
|
|
1069
|
|
24
|
1070 r->request_length += r->header_in->pos - r->header_in->start;
|
|
|
1071
|
|
0
|
1072 r->http_state = NGX_HTTP_PROCESS_REQUEST_STATE;
|
|
|
1073
|
|
|
1074 rc = ngx_http_process_request_header(r);
|
|
|
1075
|
|
|
1076 if (rc != NGX_OK) {
|
|
|
1077 return;
|
|
|
1078 }
|
|
|
1079
|
|
308
|
1080 ngx_http_process_request(r);
|
|
86
|
1081
|
|
0
|
1082 return;
|
|
54
|
1083 }
|
|
|
1084
|
|
|
1085 if (rc == NGX_AGAIN) {
|
|
|
1086
|
|
|
1087 /* a header line parsing is still not complete */
|
|
|
1088
|
|
|
1089 continue;
|
|
0
|
1090 }
|
|
|
1091
|
|
54
|
1092 /* rc == NGX_HTTP_PARSE_INVALID_HEADER: "\r" is not followed by "\n" */
|
|
|
1093
|
|
|
1094 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
500
|
1095 "client sent invalid header line: \"%*s\\r...\"",
|
|
|
1096 r->header_end - r->header_name_start,
|
|
|
1097 r->header_name_start);
|
|
330
|
1098 ngx_http_finalize_request(r, NGX_HTTP_BAD_REQUEST);
|
|
54
|
1099 return;
|
|
0
|
1100 }
|
|
|
1101 }
|
|
|
1102
|
|
|
1103
|
|
50
|
1104 static ssize_t
|
|
|
1105 ngx_http_read_request_header(ngx_http_request_t *r)
|
|
0
|
1106 {
|
|
|
1107 ssize_t n;
|
|
|
1108 ngx_event_t *rev;
|
|
230
|
1109 ngx_connection_t *c;
|
|
0
|
1110 ngx_http_core_srv_conf_t *cscf;
|
|
|
1111
|
|
230
|
1112 c = r->connection;
|
|
|
1113 rev = c->read;
|
|
0
|
1114
|
|
|
1115 n = r->header_in->last - r->header_in->pos;
|
|
|
1116
|
|
|
1117 if (n > 0) {
|
|
|
1118 return n;
|
|
|
1119 }
|
|
|
1120
|
|
72
|
1121 if (rev->ready) {
|
|
230
|
1122 n = c->recv(c, r->header_in->last,
|
|
|
1123 r->header_in->end - r->header_in->last);
|
|
72
|
1124 } else {
|
|
|
1125 n = NGX_AGAIN;
|
|
0
|
1126 }
|
|
|
1127
|
|
|
1128 if (n == NGX_AGAIN) {
|
|
364
|
1129 if (!rev->timer_set) {
|
|
0
|
1130 cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
|
|
|
1131 ngx_add_timer(rev, cscf->client_header_timeout);
|
|
|
1132 }
|
|
|
1133
|
|
430
|
1134 if (ngx_handle_read_event(rev, 0) != NGX_OK) {
|
|
0
|
1135 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
1136 return NGX_ERROR;
|
|
|
1137 }
|
|
|
1138
|
|
|
1139 return NGX_AGAIN;
|
|
|
1140 }
|
|
|
1141
|
|
|
1142 if (n == 0) {
|
|
230
|
1143 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
0
|
1144 "client closed prematurely connection");
|
|
|
1145 }
|
|
|
1146
|
|
|
1147 if (n == 0 || n == NGX_ERROR) {
|
|
272
|
1148 c->error = 1;
|
|
|
1149 c->log->action = "reading client request headers";
|
|
|
1150
|
|
|
1151 ngx_http_finalize_request(r, NGX_HTTP_BAD_REQUEST);
|
|
0
|
1152 return NGX_ERROR;
|
|
|
1153 }
|
|
|
1154
|
|
|
1155 r->header_in->last += n;
|
|
|
1156
|
|
|
1157 return n;
|
|
|
1158 }
|
|
|
1159
|
|
|
1160
|
|
50
|
1161 static ngx_int_t
|
|
|
1162 ngx_http_alloc_large_header_buffer(ngx_http_request_t *r,
|
|
|
1163 ngx_uint_t request_line)
|
|
0
|
1164 {
|
|
|
1165 u_char *old, *new;
|
|
|
1166 ngx_buf_t *b;
|
|
|
1167 ngx_http_connection_t *hc;
|
|
|
1168 ngx_http_core_srv_conf_t *cscf;
|
|
|
1169
|
|
|
1170 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1171 "http alloc large header buffer");
|
|
|
1172
|
|
|
1173 if (request_line && r->state == 0) {
|
|
|
1174
|
|
|
1175 /* the client fills up the buffer with "\r\n" */
|
|
|
1176
|
|
24
|
1177 r->request_length += r->header_in->end - r->header_in->start;
|
|
|
1178
|
|
0
|
1179 r->header_in->pos = r->header_in->start;
|
|
|
1180 r->header_in->last = r->header_in->start;
|
|
|
1181
|
|
|
1182 return NGX_OK;
|
|
|
1183 }
|
|
|
1184
|
|
|
1185 old = request_line ? r->request_start : r->header_name_start;
|
|
|
1186
|
|
|
1187 cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
|
|
|
1188
|
|
|
1189 if (r->state != 0
|
|
|
1190 && (size_t) (r->header_in->pos - old)
|
|
|
1191 >= cscf->large_client_header_buffers.size)
|
|
|
1192 {
|
|
|
1193 return NGX_DECLINED;
|
|
|
1194 }
|
|
|
1195
|
|
|
1196 hc = r->http_connection;
|
|
|
1197
|
|
|
1198 if (hc->nfree) {
|
|
|
1199 b = hc->free[--hc->nfree];
|
|
|
1200
|
|
|
1201 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
10
|
1202 "http large header free: %p %uz",
|
|
0
|
1203 b->pos, b->end - b->last);
|
|
|
1204
|
|
|
1205 } else if (hc->nbusy < cscf->large_client_header_buffers.num) {
|
|
|
1206
|
|
|
1207 if (hc->busy == NULL) {
|
|
|
1208 hc->busy = ngx_palloc(r->connection->pool,
|
|
|
1209 cscf->large_client_header_buffers.num * sizeof(ngx_buf_t *));
|
|
|
1210 if (hc->busy == NULL) {
|
|
|
1211 return NGX_ERROR;
|
|
|
1212 }
|
|
|
1213 }
|
|
|
1214
|
|
|
1215 b = ngx_create_temp_buf(r->connection->pool,
|
|
|
1216 cscf->large_client_header_buffers.size);
|
|
|
1217 if (b == NULL) {
|
|
|
1218 return NGX_ERROR;
|
|
|
1219 }
|
|
|
1220
|
|
|
1221 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
10
|
1222 "http large header alloc: %p %uz",
|
|
0
|
1223 b->pos, b->end - b->last);
|
|
|
1224
|
|
|
1225 } else {
|
|
|
1226 return NGX_DECLINED;
|
|
|
1227 }
|
|
|
1228
|
|
|
1229 hc->busy[hc->nbusy++] = b;
|
|
|
1230
|
|
|
1231 if (r->state == 0) {
|
|
|
1232 /*
|
|
|
1233 * r->state == 0 means that a header line was parsed successfully
|
|
|
1234 * and we do not need to copy incomplete header line and
|
|
|
1235 * to relocate the parser header pointers
|
|
|
1236 */
|
|
|
1237
|
|
24
|
1238 r->request_length += r->header_in->end - r->header_in->start;
|
|
|
1239
|
|
0
|
1240 r->header_in = b;
|
|
|
1241
|
|
|
1242 return NGX_OK;
|
|
|
1243 }
|
|
|
1244
|
|
|
1245 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1246 "http large header copy: %d", r->header_in->pos - old);
|
|
|
1247
|
|
24
|
1248 r->request_length += old - r->header_in->start;
|
|
|
1249
|
|
0
|
1250 new = b->start;
|
|
|
1251
|
|
|
1252 ngx_memcpy(new, old, r->header_in->pos - old);
|
|
|
1253
|
|
|
1254 b->pos = new + (r->header_in->pos - old);
|
|
|
1255 b->last = new + (r->header_in->pos - old);
|
|
|
1256
|
|
|
1257 if (request_line) {
|
|
|
1258 r->request_start = new;
|
|
|
1259
|
|
|
1260 if (r->request_end) {
|
|
|
1261 r->request_end = new + (r->request_end - old);
|
|
|
1262 }
|
|
|
1263
|
|
|
1264 r->method_end = new + (r->method_end - old);
|
|
|
1265
|
|
|
1266 r->uri_start = new + (r->uri_start - old);
|
|
|
1267 r->uri_end = new + (r->uri_end - old);
|
|
|
1268
|
|
|
1269 if (r->schema_start) {
|
|
|
1270 r->schema_start = new + (r->schema_start - old);
|
|
|
1271 r->schema_end = new + (r->schema_end - old);
|
|
|
1272 }
|
|
|
1273
|
|
|
1274 if (r->host_start) {
|
|
|
1275 r->host_start = new + (r->host_start - old);
|
|
270
|
1276 if (r->host_end) {
|
|
|
1277 r->host_end = new + (r->host_end - old);
|
|
|
1278 }
|
|
0
|
1279 }
|
|
|
1280
|
|
|
1281 if (r->port_start) {
|
|
|
1282 r->port_start = new + (r->port_start - old);
|
|
|
1283 r->port_end = new + (r->port_end - old);
|
|
|
1284 }
|
|
|
1285
|
|
|
1286 if (r->uri_ext) {
|
|
|
1287 r->uri_ext = new + (r->uri_ext - old);
|
|
|
1288 }
|
|
|
1289
|
|
|
1290 if (r->args_start) {
|
|
|
1291 r->args_start = new + (r->args_start - old);
|
|
|
1292 }
|
|
|
1293
|
|
354
|
1294 if (r->http_protocol.data) {
|
|
|
1295 r->http_protocol.data = new + (r->http_protocol.data - old);
|
|
|
1296 }
|
|
|
1297
|
|
0
|
1298 } else {
|
|
|
1299 r->header_name_start = new;
|
|
|
1300 r->header_name_end = new + (r->header_name_end - old);
|
|
|
1301 r->header_start = new + (r->header_start - old);
|
|
|
1302 r->header_end = new + (r->header_end - old);
|
|
|
1303 }
|
|
|
1304
|
|
|
1305 r->header_in = b;
|
|
|
1306
|
|
|
1307 return NGX_OK;
|
|
|
1308 }
|
|
|
1309
|
|
|
1310
|
|
50
|
1311 static ngx_int_t
|
|
58
|
1312 ngx_http_process_header_line(ngx_http_request_t *r, ngx_table_elt_t *h,
|
|
|
1313 ngx_uint_t offset)
|
|
|
1314 {
|
|
|
1315 ngx_table_elt_t **ph;
|
|
|
1316
|
|
|
1317 ph = (ngx_table_elt_t **) ((char *) &r->headers_in + offset);
|
|
|
1318
|
|
|
1319 if (*ph == NULL) {
|
|
|
1320 *ph = h;
|
|
|
1321 }
|
|
|
1322
|
|
|
1323 return NGX_OK;
|
|
|
1324 }
|
|
|
1325
|
|
|
1326
|
|
|
1327 static ngx_int_t
|
|
72
|
1328 ngx_http_process_unique_header_line(ngx_http_request_t *r, ngx_table_elt_t *h,
|
|
|
1329 ngx_uint_t offset)
|
|
|
1330 {
|
|
|
1331 ngx_table_elt_t **ph;
|
|
|
1332
|
|
|
1333 ph = (ngx_table_elt_t **) ((char *) &r->headers_in + offset);
|
|
|
1334
|
|
|
1335 if (*ph == NULL) {
|
|
|
1336 *ph = h;
|
|
|
1337 return NGX_OK;
|
|
|
1338 }
|
|
|
1339
|
|
|
1340 ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
|
|
230
|
1341 "client sent duplicate header line: \"%V: %V\", "
|
|
|
1342 "previous value: \"%V: %V\"",
|
|
|
1343 &h->key, &h->value, &(*ph)->key, &(*ph)->value);
|
|
72
|
1344
|
|
|
1345 ngx_http_finalize_request(r, NGX_HTTP_BAD_REQUEST);
|
|
|
1346
|
|
|
1347 return NGX_ERROR;
|
|
|
1348 }
|
|
|
1349
|
|
|
1350
|
|
|
1351 static ngx_int_t
|
|
376
|
1352 ngx_http_process_host(ngx_http_request_t *r, ngx_table_elt_t *h,
|
|
|
1353 ngx_uint_t offset)
|
|
|
1354 {
|
|
506
|
1355 u_char *host;
|
|
|
1356 ssize_t len;
|
|
376
|
1357
|
|
|
1358 if (r->headers_in.host == NULL) {
|
|
|
1359 r->headers_in.host = h;
|
|
|
1360 }
|
|
|
1361
|
|
506
|
1362 host = h->value.data;
|
|
|
1363 len = ngx_http_validate_host(r, &host, h->value.len, 0);
|
|
|
1364
|
|
|
1365 if (len == 0) {
|
|
376
|
1366 ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
|
|
|
1367 "client sent invalid host header");
|
|
|
1368 ngx_http_finalize_request(r, NGX_HTTP_BAD_REQUEST);
|
|
|
1369 return NGX_ERROR;
|
|
|
1370 }
|
|
|
1371
|
|
506
|
1372 if (len < 0) {
|
|
|
1373 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
1374 return NGX_ERROR;
|
|
|
1375 }
|
|
|
1376
|
|
376
|
1377 if (r->headers_in.server.len) {
|
|
|
1378 return NGX_OK;
|
|
|
1379 }
|
|
|
1380
|
|
|
1381 r->headers_in.server.len = len;
|
|
506
|
1382 r->headers_in.server.data = host;
|
|
376
|
1383
|
|
|
1384 return NGX_OK;
|
|
|
1385 }
|
|
|
1386
|
|
|
1387
|
|
|
1388 static ngx_int_t
|
|
336
|
1389 ngx_http_process_connection(ngx_http_request_t *r, ngx_table_elt_t *h,
|
|
|
1390 ngx_uint_t offset)
|
|
|
1391 {
|
|
340
|
1392 if (ngx_strcasestrn(h->value.data, "close", 5 - 1)) {
|
|
336
|
1393 r->headers_in.connection_type = NGX_HTTP_CONNECTION_CLOSE;
|
|
|
1394
|
|
340
|
1395 } else if (ngx_strcasestrn(h->value.data, "keep-alive", 10 - 1)) {
|
|
336
|
1396 r->headers_in.connection_type = NGX_HTTP_CONNECTION_KEEP_ALIVE;
|
|
|
1397 }
|
|
|
1398
|
|
|
1399 return NGX_OK;
|
|
|
1400 }
|
|
|
1401
|
|
|
1402
|
|
|
1403 static ngx_int_t
|
|
376
|
1404 ngx_http_process_user_agent(ngx_http_request_t *r, ngx_table_elt_t *h,
|
|
|
1405 ngx_uint_t offset)
|
|
|
1406 {
|
|
400
|
1407 u_char *user_agent, *msie;
|
|
376
|
1408
|
|
|
1409 if (r->headers_in.user_agent) {
|
|
|
1410 return NGX_OK;
|
|
|
1411 }
|
|
|
1412
|
|
|
1413 r->headers_in.user_agent = h;
|
|
|
1414
|
|
|
1415 /* check some widespread browsers while the header is in CPU cache */
|
|
|
1416
|
|
|
1417 user_agent = h->value.data;
|
|
|
1418
|
|
400
|
1419 msie = ngx_strstrn(user_agent, "MSIE ", 5 - 1);
|
|
|
1420
|
|
|
1421 if (msie && msie + 7 < user_agent + h->value.len) {
|
|
376
|
1422
|
|
|
1423 r->headers_in.msie = 1;
|
|
|
1424
|
|
400
|
1425 if (msie[6] == '.') {
|
|
|
1426
|
|
|
1427 switch (msie[5]) {
|
|
|
1428 case '4':
|
|
|
1429 r->headers_in.msie4 = 1;
|
|
|
1430 /* fall through */
|
|
|
1431 case '5':
|
|
502
|
1432 r->headers_in.msie6 = 1;
|
|
|
1433 break;
|
|
400
|
1434 case '6':
|
|
502
|
1435 if (ngx_strstrn(msie + 8, "SV1", 3 - 1) == NULL) {
|
|
|
1436 r->headers_in.msie6 = 1;
|
|
|
1437 }
|
|
|
1438 break;
|
|
400
|
1439 }
|
|
376
|
1440 }
|
|
|
1441
|
|
|
1442 #if 0
|
|
|
1443 /* MSIE ignores the SSL "close notify" alert */
|
|
|
1444 if (c->ssl) {
|
|
|
1445 c->ssl->no_send_shutdown = 1;
|
|
|
1446 }
|
|
|
1447 #endif
|
|
|
1448 }
|
|
|
1449
|
|
|
1450 if (ngx_strstrn(user_agent, "Opera", 5 - 1)) {
|
|
|
1451 r->headers_in.opera = 1;
|
|
|
1452 r->headers_in.msie = 0;
|
|
|
1453 r->headers_in.msie4 = 0;
|
|
400
|
1454 r->headers_in.msie6 = 0;
|
|
376
|
1455 }
|
|
|
1456
|
|
|
1457 if (!r->headers_in.msie && !r->headers_in.opera) {
|
|
|
1458
|
|
|
1459 if (ngx_strstrn(user_agent, "Gecko/", 6 - 1)) {
|
|
|
1460 r->headers_in.gecko = 1;
|
|
|
1461
|
|
508
|
1462 } else if (ngx_strstrn(user_agent, "Chrome/", 7 - 1)) {
|
|
|
1463 r->headers_in.chrome = 1;
|
|
|
1464
|
|
|
1465 } else if (ngx_strstrn(user_agent, "Safari/", 7 - 1)) {
|
|
|
1466 r->headers_in.safari = 1;
|
|
|
1467
|
|
376
|
1468 } else if (ngx_strstrn(user_agent, "Konqueror", 9 - 1)) {
|
|
|
1469 r->headers_in.konqueror = 1;
|
|
|
1470 }
|
|
|
1471 }
|
|
|
1472
|
|
|
1473 return NGX_OK;
|
|
|
1474 }
|
|
|
1475
|
|
|
1476
|
|
|
1477 static ngx_int_t
|
|
58
|
1478 ngx_http_process_cookie(ngx_http_request_t *r, ngx_table_elt_t *h,
|
|
|
1479 ngx_uint_t offset)
|
|
|
1480 {
|
|
|
1481 ngx_table_elt_t **cookie;
|
|
|
1482
|
|
|
1483 cookie = ngx_array_push(&r->headers_in.cookies);
|
|
72
|
1484 if (cookie) {
|
|
|
1485 *cookie = h;
|
|
|
1486 return NGX_OK;
|
|
58
|
1487 }
|
|
|
1488
|
|
72
|
1489 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
1490
|
|
|
1491 return NGX_ERROR;
|
|
58
|
1492 }
|
|
|
1493
|
|
|
1494
|
|
|
1495 static ngx_int_t
|
|
50
|
1496 ngx_http_process_request_header(ngx_http_request_t *r)
|
|
0
|
1497 {
|
|
376
|
1498 if (ngx_http_find_virtual_server(r, r->headers_in.server.data,
|
|
|
1499 r->headers_in.server.len)
|
|
|
1500 == NGX_ERROR)
|
|
|
1501 {
|
|
|
1502 ngx_http_finalize_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
1503 return NGX_ERROR;
|
|
|
1504 }
|
|
|
1505
|
|
|
1506 if (r->headers_in.host == NULL && r->http_version > NGX_HTTP_VERSION_10) {
|
|
|
1507 ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
|
|
|
1508 "client sent HTTP/1.1 request without \"Host\" header");
|
|
|
1509 ngx_http_finalize_request(r, NGX_HTTP_BAD_REQUEST);
|
|
|
1510 return NGX_ERROR;
|
|
0
|
1511 }
|
|
|
1512
|
|
|
1513 if (r->headers_in.content_length) {
|
|
|
1514 r->headers_in.content_length_n =
|
|
212
|
1515 ngx_atoof(r->headers_in.content_length->value.data,
|
|
0
|
1516 r->headers_in.content_length->value.len);
|
|
|
1517
|
|
|
1518 if (r->headers_in.content_length_n == NGX_ERROR) {
|
|
54
|
1519 ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
|
|
|
1520 "client sent invalid \"Content-Length\" header");
|
|
130
|
1521 ngx_http_finalize_request(r, NGX_HTTP_LENGTH_REQUIRED);
|
|
54
|
1522 return NGX_ERROR;
|
|
0
|
1523 }
|
|
|
1524 }
|
|
|
1525
|
|
426
|
1526 if (r->method & NGX_HTTP_PUT && r->headers_in.content_length_n == -1) {
|
|
54
|
1527 ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
|
|
362
|
1528 "client sent %V method without \"Content-Length\" header",
|
|
|
1529 &r->method_name);
|
|
130
|
1530 ngx_http_finalize_request(r, NGX_HTTP_LENGTH_REQUIRED);
|
|
|
1531 return NGX_ERROR;
|
|
|
1532 }
|
|
|
1533
|
|
336
|
1534 if (r->method & NGX_HTTP_TRACE) {
|
|
294
|
1535 ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
|
|
|
1536 "client sent TRACE method");
|
|
|
1537 ngx_http_finalize_request(r, NGX_HTTP_NOT_ALLOWED);
|
|
|
1538 return NGX_ERROR;
|
|
|
1539 }
|
|
|
1540
|
|
130
|
1541 if (r->headers_in.transfer_encoding
|
|
340
|
1542 && ngx_strcasestrn(r->headers_in.transfer_encoding->value.data,
|
|
|
1543 "chunked", 7 - 1))
|
|
130
|
1544 {
|
|
|
1545 ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
|
|
|
1546 "client sent \"Transfer-Encoding: chunked\" header");
|
|
|
1547 ngx_http_finalize_request(r, NGX_HTTP_LENGTH_REQUIRED);
|
|
54
|
1548 return NGX_ERROR;
|
|
0
|
1549 }
|
|
|
1550
|
|
336
|
1551 if (r->headers_in.connection_type == NGX_HTTP_CONNECTION_KEEP_ALIVE) {
|
|
|
1552 if (r->headers_in.keep_alive) {
|
|
|
1553 r->headers_in.keep_alive_n =
|
|
|
1554 ngx_atotm(r->headers_in.keep_alive->value.data,
|
|
|
1555 r->headers_in.keep_alive->value.len);
|
|
0
|
1556 }
|
|
|
1557 }
|
|
|
1558
|
|
308
|
1559 return NGX_OK;
|
|
|
1560 }
|
|
|
1561
|
|
|
1562
|
|
|
1563 static void
|
|
|
1564 ngx_http_process_request(ngx_http_request_t *r)
|
|
|
1565 {
|
|
356
|
1566 ngx_connection_t *c;
|
|
308
|
1567
|
|
|
1568 c = r->connection;
|
|
|
1569
|
|
354
|
1570 if (r->plain_http) {
|
|
|
1571 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
|
1572 "client sent plain HTTP request to HTTPS port");
|
|
|
1573 ngx_http_finalize_request(r, NGX_HTTP_TO_HTTPS);
|
|
|
1574 return;
|
|
|
1575 }
|
|
|
1576
|
|
308
|
1577 #if (NGX_HTTP_SSL)
|
|
|
1578
|
|
|
1579 if (c->ssl) {
|
|
356
|
1580 long rc;
|
|
372
|
1581 X509 *cert;
|
|
356
|
1582 ngx_http_ssl_srv_conf_t *sscf;
|
|
|
1583
|
|
218
|
1584 sscf = ngx_http_get_module_srv_conf(r, ngx_http_ssl_module);
|
|
|
1585
|
|
502
|
1586 if (sscf->verify) {
|
|
308
|
1587 rc = SSL_get_verify_result(c->ssl->connection);
|
|
218
|
1588
|
|
|
1589 if (rc != X509_V_OK) {
|
|
308
|
1590 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
220
|
1591 "client SSL certificate verify error: (%l:%s)",
|
|
218
|
1592 rc, X509_verify_cert_error_string(rc));
|
|
366
|
1593
|
|
|
1594 ngx_ssl_remove_cached_session(sscf->ssl.ctx,
|
|
|
1595 (SSL_get0_session(c->ssl->connection)));
|
|
|
1596
|
|
218
|
1597 ngx_http_finalize_request(r, NGX_HTTPS_CERT_ERROR);
|
|
308
|
1598 return;
|
|
218
|
1599 }
|
|
|
1600
|
|
502
|
1601 if (sscf->verify == 1) {
|
|
|
1602 cert = SSL_get_peer_certificate(c->ssl->connection);
|
|
|
1603
|
|
|
1604 if (cert == NULL) {
|
|
|
1605 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
|
1606 "client sent no required SSL certificate");
|
|
|
1607
|
|
|
1608 ngx_ssl_remove_cached_session(sscf->ssl.ctx,
|
|
366
|
1609 (SSL_get0_session(c->ssl->connection)));
|
|
|
1610
|
|
502
|
1611 ngx_http_finalize_request(r, NGX_HTTPS_NO_CERT);
|
|
|
1612 return;
|
|
|
1613 }
|
|
|
1614
|
|
|
1615 X509_free(cert);
|
|
218
|
1616 }
|
|
|
1617 }
|
|
|
1618 }
|
|
|
1619
|
|
|
1620 #endif
|
|
|
1621
|
|
308
|
1622 if (c->read->timer_set) {
|
|
|
1623 ngx_del_timer(c->read);
|
|
|
1624 }
|
|
|
1625
|
|
|
1626 #if (NGX_STAT_STUB)
|
|
498
|
1627 (void) ngx_atomic_fetch_add(ngx_stat_reading, -1);
|
|
308
|
1628 r->stat_reading = 0;
|
|
498
|
1629 (void) ngx_atomic_fetch_add(ngx_stat_writing, 1);
|
|
308
|
1630 r->stat_writing = 1;
|
|
|
1631 #endif
|
|
|
1632
|
|
|
1633 c->read->handler = ngx_http_request_handler;
|
|
|
1634 c->write->handler = ngx_http_request_handler;
|
|
326
|
1635 r->read_event_handler = ngx_http_block_reading;
|
|
308
|
1636
|
|
|
1637 ngx_http_handler(r);
|
|
|
1638
|
|
426
|
1639 ngx_http_run_posted_requests(c);
|
|
0
|
1640 }
|
|
|
1641
|
|
|
1642
|
|
376
|
1643 static ssize_t
|
|
506
|
1644 ngx_http_validate_host(ngx_http_request_t *r, u_char **host, size_t len,
|
|
|
1645 ngx_uint_t alloc)
|
|
26
|
1646 {
|
|
506
|
1647 u_char *h, ch;
|
|
|
1648 size_t i, last;
|
|
|
1649 ngx_uint_t dot;
|
|
376
|
1650
|
|
|
1651 last = len;
|
|
506
|
1652 h = *host;
|
|
376
|
1653 dot = 0;
|
|
|
1654
|
|
|
1655 for (i = 0; i < len; i++) {
|
|
506
|
1656 ch = h[i];
|
|
376
|
1657
|
|
|
1658 if (ch == '.') {
|
|
|
1659 if (dot) {
|
|
506
|
1660 return 0;
|
|
376
|
1661 }
|
|
|
1662
|
|
|
1663 dot = 1;
|
|
|
1664 continue;
|
|
|
1665 }
|
|
|
1666
|
|
|
1667 dot = 0;
|
|
|
1668
|
|
|
1669 if (ch == ':') {
|
|
|
1670 last = i;
|
|
|
1671 continue;
|
|
|
1672 }
|
|
|
1673
|
|
482
|
1674 if (ngx_path_separator(ch) || ch == '\0') {
|
|
506
|
1675 return 0;
|
|
|
1676 }
|
|
|
1677
|
|
|
1678 if (ch >= 'A' || ch < 'Z') {
|
|
|
1679 alloc = 1;
|
|
376
|
1680 }
|
|
|
1681 }
|
|
|
1682
|
|
|
1683 if (dot) {
|
|
|
1684 last--;
|
|
|
1685 }
|
|
|
1686
|
|
506
|
1687 if (alloc) {
|
|
|
1688 *host = ngx_pnalloc(r->pool, last) ;
|
|
|
1689 if (*host == NULL) {
|
|
|
1690 return -1;
|
|
|
1691 }
|
|
|
1692
|
|
|
1693 ngx_strlow(*host, h, last);
|
|
|
1694 }
|
|
|
1695
|
|
376
|
1696 return last;
|
|
|
1697 }
|
|
|
1698
|
|
|
1699
|
|
|
1700 static ngx_int_t
|
|
|
1701 ngx_http_find_virtual_server(ngx_http_request_t *r, u_char *host, size_t len)
|
|
|
1702 {
|
|
142
|
1703 ngx_http_core_loc_conf_t *clcf;
|
|
|
1704 ngx_http_core_srv_conf_t *cscf;
|
|
376
|
1705
|
|
478
|
1706 if (r->virtual_names == NULL) {
|
|
376
|
1707 return NGX_DECLINED;
|
|
|
1708 }
|
|
|
1709
|
|
506
|
1710 cscf = ngx_hash_find_combined(&r->virtual_names->names,
|
|
|
1711 ngx_hash_key(host, len), host, len);
|
|
312
|
1712
|
|
|
1713 if (cscf) {
|
|
|
1714 goto found;
|
|
26
|
1715 }
|
|
|
1716
|
|
326
|
1717 #if (NGX_PCRE)
|
|
|
1718
|
|
504
|
1719 if (len && r->virtual_names->nregex) {
|
|
460
|
1720 size_t ncaptures;
|
|
356
|
1721 ngx_int_t n;
|
|
|
1722 ngx_uint_t i;
|
|
|
1723 ngx_str_t name;
|
|
|
1724 ngx_http_server_name_t *sn;
|
|
326
|
1725
|
|
|
1726 name.len = len;
|
|
506
|
1727 name.data = host;
|
|
326
|
1728
|
|
456
|
1729 ncaptures = 0;
|
|
|
1730
|
|
478
|
1731 sn = r->virtual_names->regex;
|
|
|
1732
|
|
|
1733 for (i = 0; i < r->virtual_names->nregex; i++) {
|
|
326
|
1734
|
|
456
|
1735 if (sn[i].captures && r->captures == NULL) {
|
|
|
1736
|
|
458
|
1737 ncaptures = (NGX_HTTP_MAX_CAPTURES + 1) * 3;
|
|
|
1738
|
|
|
1739 r->captures = ngx_palloc(r->pool, ncaptures * sizeof(int));
|
|
456
|
1740 if (r->captures == NULL) {
|
|
|
1741 return NGX_ERROR;
|
|
|
1742 }
|
|
|
1743 }
|
|
|
1744
|
|
|
1745 n = ngx_regex_exec(sn[i].regex, &name, r->captures, ncaptures);
|
|
326
|
1746
|
|
|
1747 if (n == NGX_REGEX_NO_MATCHED) {
|
|
|
1748 continue;
|
|
|
1749 }
|
|
|
1750
|
|
|
1751 if (n < 0) {
|
|
|
1752 ngx_log_error(NGX_LOG_ALERT, r->connection->log, 0,
|
|
|
1753 ngx_regex_exec_n
|
|
|
1754 " failed: %d on \"%V\" using \"%V\"",
|
|
|
1755 n, &name, &sn[i].name);
|
|
376
|
1756 return NGX_ERROR;
|
|
326
|
1757 }
|
|
|
1758
|
|
|
1759 /* match */
|
|
|
1760
|
|
|
1761 cscf = sn[i].core_srv_conf;
|
|
|
1762
|
|
456
|
1763 r->ncaptures = ncaptures;
|
|
506
|
1764 r->captures_data = host;
|
|
456
|
1765
|
|
326
|
1766 goto found;
|
|
|
1767 }
|
|
|
1768 }
|
|
|
1769
|
|
|
1770 #endif
|
|
|
1771
|
|
376
|
1772 return NGX_OK;
|
|
58
|
1773
|
|
|
1774 found:
|
|
|
1775
|
|
142
|
1776 r->srv_conf = cscf->ctx->srv_conf;
|
|
|
1777 r->loc_conf = cscf->ctx->loc_conf;
|
|
58
|
1778
|
|
|
1779 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
484
|
1780 r->connection->log->file = clcf->error_log->file;
|
|
58
|
1781
|
|
|
1782 if (!(r->connection->log->log_level & NGX_LOG_DEBUG_CONNECTION)) {
|
|
484
|
1783 r->connection->log->log_level = clcf->error_log->log_level;
|
|
26
|
1784 }
|
|
|
1785
|
|
376
|
1786 return NGX_OK;
|
|
26
|
1787 }
|
|
|
1788
|
|
|
1789
|
|
58
|
1790 static void
|
|
|
1791 ngx_http_request_handler(ngx_event_t *ev)
|
|
|
1792 {
|
|
|
1793 ngx_connection_t *c;
|
|
|
1794 ngx_http_request_t *r;
|
|
214
|
1795 ngx_http_log_ctx_t *ctx;
|
|
58
|
1796
|
|
|
1797 c = ev->data;
|
|
|
1798 r = c->data;
|
|
|
1799
|
|
214
|
1800 ctx = c->log->data;
|
|
|
1801 ctx->current_request = r;
|
|
|
1802
|
|
426
|
1803 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
|
1804 "http run request: \"%V?%V\"", &r->uri, &r->args);
|
|
|
1805
|
|
58
|
1806 if (ev->write) {
|
|
|
1807 r->write_event_handler(r);
|
|
|
1808
|
|
|
1809 } else {
|
|
|
1810 r->read_event_handler(r);
|
|
|
1811 }
|
|
426
|
1812
|
|
|
1813 ngx_http_run_posted_requests(c);
|
|
|
1814 }
|
|
|
1815
|
|
|
1816
|
|
|
1817 void
|
|
|
1818 ngx_http_run_posted_requests(ngx_connection_t *c)
|
|
|
1819 {
|
|
|
1820 ngx_http_request_t *r;
|
|
|
1821 ngx_http_log_ctx_t *ctx;
|
|
|
1822 ngx_http_posted_request_t *pr;
|
|
|
1823
|
|
|
1824 for ( ;; ) {
|
|
|
1825
|
|
|
1826 if (c->destroyed) {
|
|
|
1827 return;
|
|
|
1828 }
|
|
|
1829
|
|
|
1830 r = c->data;
|
|
|
1831 pr = r->main->posted_requests;
|
|
|
1832
|
|
|
1833 if (pr == NULL) {
|
|
|
1834 return;
|
|
|
1835 }
|
|
|
1836
|
|
|
1837 r->main->posted_requests = pr->next;
|
|
|
1838
|
|
|
1839 r = pr->request;
|
|
|
1840
|
|
|
1841 ctx = c->log->data;
|
|
|
1842 ctx->current_request = r;
|
|
|
1843
|
|
|
1844 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
|
1845 "http posted request: \"%V?%V\"", &r->uri, &r->args);
|
|
|
1846
|
|
|
1847 r->write_event_handler(r);
|
|
|
1848 }
|
|
|
1849 }
|
|
|
1850
|
|
|
1851
|
|
|
1852 ngx_int_t
|
|
|
1853 ngx_http_post_request(ngx_http_request_t *r)
|
|
|
1854 {
|
|
|
1855 ngx_http_posted_request_t *pr, **p;
|
|
|
1856
|
|
|
1857 pr = ngx_palloc(r->pool, sizeof(ngx_http_posted_request_t));
|
|
|
1858 if (pr == NULL) {
|
|
|
1859 return NGX_ERROR;
|
|
|
1860 }
|
|
|
1861
|
|
|
1862 pr->request = r;
|
|
|
1863 pr->next = NULL;
|
|
|
1864
|
|
|
1865 for (p = &r->main->posted_requests; *p; p = &(*p)->next) { /* void */ }
|
|
|
1866
|
|
|
1867 *p = pr;
|
|
|
1868
|
|
|
1869 return NGX_OK;
|
|
58
|
1870 }
|
|
|
1871
|
|
|
1872
|
|
50
|
1873 void
|
|
58
|
1874 ngx_http_finalize_request(ngx_http_request_t *r, ngx_int_t rc)
|
|
0
|
1875 {
|
|
330
|
1876 ngx_connection_t *c;
|
|
58
|
1877 ngx_http_request_t *pr;
|
|
0
|
1878 ngx_http_core_loc_conf_t *clcf;
|
|
|
1879
|
|
58
|
1880 if (rc == NGX_DONE) {
|
|
118
|
1881 /* the request pool may be already destroyed */
|
|
58
|
1882 return;
|
|
|
1883 }
|
|
|
1884
|
|
330
|
1885 c = r->connection;
|
|
|
1886
|
|
426
|
1887 ngx_log_debug4(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
|
1888 "http finalize request: %d, \"%V?%V\" %d",
|
|
|
1889 rc, &r->uri, &r->args, r == c->data);
|
|
132
|
1890
|
|
488
|
1891 if (rc == NGX_OK && r->filter_finalize) {
|
|
|
1892 c->error = 1;
|
|
|
1893 return;
|
|
|
1894 }
|
|
|
1895
|
|
230
|
1896 if (rc == NGX_DECLINED) {
|
|
|
1897 r->content_handler = NULL;
|
|
|
1898 r->write_event_handler = ngx_http_core_run_phases;
|
|
|
1899 ngx_http_core_run_phases(r);
|
|
|
1900 return;
|
|
|
1901 }
|
|
|
1902
|
|
248
|
1903 if (r != r->main && r->post_subrequest) {
|
|
|
1904 rc = r->post_subrequest->handler(r, r->post_subrequest->data, rc);
|
|
216
|
1905 }
|
|
|
1906
|
|
358
|
1907 if (rc == NGX_ERROR
|
|
|
1908 || rc == NGX_HTTP_REQUEST_TIME_OUT
|
|
|
1909 || rc == NGX_HTTP_CLIENT_CLOSED_REQUEST
|
|
|
1910 || c->error)
|
|
|
1911 {
|
|
282
|
1912 if (rc > 0 && r->headers_out.status == 0) {
|
|
|
1913 r->headers_out.status = rc;
|
|
190
|
1914 }
|
|
|
1915
|
|
162
|
1916 if (ngx_http_post_action(r) == NGX_OK) {
|
|
|
1917 return;
|
|
|
1918 }
|
|
|
1919
|
|
118
|
1920 ngx_http_close_request(r, 0);
|
|
0
|
1921 return;
|
|
|
1922 }
|
|
|
1923
|
|
186
|
1924 if (rc >= NGX_HTTP_SPECIAL_RESPONSE
|
|
|
1925 || rc == NGX_HTTP_CREATED
|
|
|
1926 || rc == NGX_HTTP_NO_CONTENT)
|
|
|
1927 {
|
|
136
|
1928 if (rc == NGX_HTTP_CLOSE) {
|
|
|
1929 ngx_http_close_request(r, rc);
|
|
|
1930 return;
|
|
|
1931 }
|
|
|
1932
|
|
146
|
1933 if (r == r->main) {
|
|
330
|
1934 if (c->read->timer_set) {
|
|
|
1935 ngx_del_timer(c->read);
|
|
118
|
1936 }
|
|
|
1937
|
|
330
|
1938 if (c->write->timer_set) {
|
|
|
1939 ngx_del_timer(c->write);
|
|
118
|
1940 }
|
|
|
1941 }
|
|
|
1942
|
|
410
|
1943 c->read->handler = ngx_http_request_handler;
|
|
|
1944 c->write->handler = ngx_http_request_handler;
|
|
|
1945
|
|
118
|
1946 ngx_http_finalize_request(r, ngx_http_special_response_handler(r, rc));
|
|
|
1947 return;
|
|
|
1948 }
|
|
|
1949
|
|
426
|
1950 if (r != r->main) {
|
|
|
1951
|
|
|
1952 if (r->buffered || r->postponed) {
|
|
|
1953
|
|
|
1954 if (ngx_http_set_write_handler(r) != NGX_OK) {
|
|
|
1955 ngx_http_close_request(r->main, 0);
|
|
|
1956 }
|
|
|
1957
|
|
74
|
1958 return;
|
|
|
1959 }
|
|
426
|
1960
|
|
|
1961 #if (NGX_DEBUG)
|
|
|
1962 if (r != c->data) {
|
|
|
1963 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
|
1964 "http finalize non-active request: \"%V?%V\"",
|
|
|
1965 &r->uri, &r->args);
|
|
|
1966 }
|
|
|
1967 #endif
|
|
58
|
1968
|
|
|
1969 pr = r->parent;
|
|
|
1970
|
|
426
|
1971 if (r == c->data) {
|
|
|
1972
|
|
|
1973 if (!r->logged) {
|
|
|
1974
|
|
|
1975 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
1976
|
|
|
1977 if (clcf->log_subrequest) {
|
|
|
1978 ngx_http_log_request(r);
|
|
|
1979 }
|
|
|
1980
|
|
|
1981 r->logged = 1;
|
|
|
1982
|
|
|
1983 } else {
|
|
|
1984 ngx_log_error(NGX_LOG_ALERT, c->log, 0,
|
|
|
1985 "subrequest: \"%V?%V\" logged again",
|
|
|
1986 &r->uri, &r->args);
|
|
|
1987 }
|
|
|
1988
|
|
|
1989 r->done = 1;
|
|
|
1990
|
|
|
1991 if (pr->postponed && pr->postponed->request == r) {
|
|
|
1992 pr->postponed = pr->postponed->next;
|
|
|
1993 }
|
|
|
1994
|
|
|
1995 c->data = pr;
|
|
|
1996
|
|
|
1997 } else {
|
|
|
1998
|
|
|
1999 r->write_event_handler = ngx_http_request_finalizer;
|
|
|
2000
|
|
|
2001 if (r->waited) {
|
|
|
2002 r->done = 1;
|
|
|
2003 }
|
|
|
2004 }
|
|
|
2005
|
|
|
2006 if (ngx_http_post_request(pr) != NGX_OK) {
|
|
|
2007 ngx_http_close_request(r->main, 0);
|
|
|
2008 return;
|
|
|
2009 }
|
|
|
2010
|
|
330
|
2011 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
426
|
2012 "http wake parent request: \"%V?%V\"",
|
|
|
2013 &pr->uri, &pr->args);
|
|
|
2014
|
|
|
2015 return;
|
|
|
2016 }
|
|
|
2017
|
|
|
2018 if (r->buffered || c->buffered || r->postponed) {
|
|
|
2019
|
|
|
2020 if (ngx_http_set_write_handler(r) != NGX_OK) {
|
|
|
2021 ngx_http_close_request(r, 0);
|
|
58
|
2022 }
|
|
|
2023
|
|
|
2024 return;
|
|
|
2025 }
|
|
0
|
2026
|
|
426
|
2027 if (r != c->data) {
|
|
|
2028 ngx_log_error(NGX_LOG_ALERT, c->log, 0,
|
|
|
2029 "http finalize non-active request: \"%V?%V\"",
|
|
|
2030 &r->uri, &r->args);
|
|
0
|
2031 return;
|
|
76
|
2032 }
|
|
|
2033
|
|
426
|
2034 r->done = 1;
|
|
0
|
2035
|
|
178
|
2036 if (!r->post_action) {
|
|
|
2037 r->request_complete = 1;
|
|
|
2038 }
|
|
|
2039
|
|
162
|
2040 if (ngx_http_post_action(r) == NGX_OK) {
|
|
126
|
2041 return;
|
|
|
2042 }
|
|
|
2043
|
|
330
|
2044 if (c->read->timer_set) {
|
|
|
2045 ngx_del_timer(c->read);
|
|
|
2046 }
|
|
|
2047
|
|
|
2048 if (c->write->timer_set) {
|
|
|
2049 c->write->delayed = 0;
|
|
|
2050 ngx_del_timer(c->write);
|
|
0
|
2051 }
|
|
|
2052
|
|
330
|
2053 if (c->destroyed) {
|
|
|
2054 return;
|
|
0
|
2055 }
|
|
|
2056
|
|
330
|
2057 if (c->read->eof) {
|
|
|
2058 ngx_http_close_request(r, 0);
|
|
138
|
2059 return;
|
|
|
2060 }
|
|
|
2061
|
|
426
|
2062 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
2063
|
|
0
|
2064 if (!ngx_terminate
|
|
|
2065 && !ngx_exiting
|
|
378
|
2066 && r->keepalive
|
|
0
|
2067 && clcf->keepalive_timeout > 0)
|
|
|
2068 {
|
|
|
2069 ngx_http_set_keepalive(r);
|
|
|
2070 return;
|
|
|
2071
|
|
|
2072 } else if (r->lingering_close && clcf->lingering_timeout > 0) {
|
|
|
2073 ngx_http_set_lingering_close(r);
|
|
|
2074 return;
|
|
|
2075 }
|
|
|
2076
|
|
|
2077 ngx_http_close_request(r, 0);
|
|
|
2078 }
|
|
|
2079
|
|
|
2080
|
|
74
|
2081 static ngx_int_t
|
|
50
|
2082 ngx_http_set_write_handler(ngx_http_request_t *r)
|
|
0
|
2083 {
|
|
|
2084 ngx_event_t *wev;
|
|
|
2085 ngx_http_core_loc_conf_t *clcf;
|
|
|
2086
|
|
58
|
2087 r->http_state = NGX_HTTP_WRITING_REQUEST_STATE;
|
|
|
2088
|
|
326
|
2089 r->read_event_handler = ngx_http_test_reading;
|
|
74
|
2090 r->write_event_handler = ngx_http_writer;
|
|
|
2091
|
|
0
|
2092 wev = r->connection->write;
|
|
|
2093
|
|
|
2094 if (wev->ready && wev->delayed) {
|
|
74
|
2095 return NGX_OK;
|
|
0
|
2096 }
|
|
|
2097
|
|
58
|
2098 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
0
|
2099 if (!wev->delayed) {
|
|
|
2100 ngx_add_timer(wev, clcf->send_timeout);
|
|
|
2101 }
|
|
|
2102
|
|
430
|
2103 if (ngx_handle_write_event(wev, clcf->send_lowat) != NGX_OK) {
|
|
0
|
2104 ngx_http_close_request(r, 0);
|
|
74
|
2105 return NGX_ERROR;
|
|
0
|
2106 }
|
|
74
|
2107
|
|
|
2108 return NGX_OK;
|
|
0
|
2109 }
|
|
|
2110
|
|
|
2111
|
|
58
|
2112 static void
|
|
|
2113 ngx_http_writer(ngx_http_request_t *r)
|
|
0
|
2114 {
|
|
|
2115 int rc;
|
|
58
|
2116 ngx_event_t *wev;
|
|
0
|
2117 ngx_connection_t *c;
|
|
|
2118 ngx_http_core_loc_conf_t *clcf;
|
|
|
2119
|
|
58
|
2120 c = r->connection;
|
|
|
2121 wev = c->write;
|
|
|
2122
|
|
132
|
2123 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, wev->log, 0,
|
|
|
2124 "http writer handler: \"%V?%V\"", &r->uri, &r->args);
|
|
0
|
2125
|
|
426
|
2126 clcf = ngx_http_get_module_loc_conf(r->main, ngx_http_core_module);
|
|
|
2127
|
|
0
|
2128 if (wev->timedout) {
|
|
|
2129 if (!wev->delayed) {
|
|
54
|
2130 ngx_log_error(NGX_LOG_INFO, c->log, NGX_ETIMEDOUT,
|
|
|
2131 "client timed out");
|
|
|
2132 c->timedout = 1;
|
|
116
|
2133
|
|
162
|
2134 ngx_http_finalize_request(r, NGX_HTTP_REQUEST_TIME_OUT);
|
|
0
|
2135 return;
|
|
|
2136 }
|
|
|
2137
|
|
|
2138 wev->timedout = 0;
|
|
|
2139 wev->delayed = 0;
|
|
|
2140
|
|
|
2141 if (!wev->ready) {
|
|
|
2142 ngx_add_timer(wev, clcf->send_timeout);
|
|
|
2143
|
|
430
|
2144 if (ngx_handle_write_event(wev, clcf->send_lowat) != NGX_OK) {
|
|
118
|
2145 ngx_http_close_request(r, 0);
|
|
0
|
2146 }
|
|
|
2147
|
|
|
2148 return;
|
|
|
2149 }
|
|
|
2150
|
|
|
2151 } else {
|
|
|
2152 if (wev->delayed) {
|
|
|
2153 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, wev->log, 0,
|
|
|
2154 "http writer delayed");
|
|
|
2155
|
|
430
|
2156 if (ngx_handle_write_event(wev, clcf->send_lowat) != NGX_OK) {
|
|
118
|
2157 ngx_http_close_request(r, 0);
|
|
0
|
2158 }
|
|
|
2159
|
|
|
2160 return;
|
|
|
2161 }
|
|
|
2162 }
|
|
|
2163
|
|
132
|
2164 rc = ngx_http_output_filter(r, NULL);
|
|
|
2165
|
|
|
2166 if (c->destroyed) {
|
|
|
2167 return;
|
|
58
|
2168 }
|
|
|
2169
|
|
132
|
2170 ngx_log_debug3(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
|
2171 "http writer output filter: %d, \"%V?%V\"",
|
|
|
2172 rc, &r->uri, &r->args);
|
|
0
|
2173
|
|
494
|
2174 if (rc == NGX_ERROR) {
|
|
|
2175 ngx_http_finalize_request(r, rc);
|
|
|
2176 return;
|
|
|
2177 }
|
|
|
2178
|
|
426
|
2179 if (r->buffered || r->postponed || (r == r->main && c->buffered)) {
|
|
|
2180
|
|
0
|
2181 if (!wev->ready && !wev->delayed) {
|
|
|
2182 ngx_add_timer(wev, clcf->send_timeout);
|
|
|
2183 }
|
|
|
2184
|
|
430
|
2185 if (ngx_handle_write_event(wev, clcf->send_lowat) != NGX_OK) {
|
|
118
|
2186 ngx_http_close_request(r, 0);
|
|
0
|
2187 }
|
|
|
2188
|
|
426
|
2189 return;
|
|
0
|
2190 }
|
|
|
2191
|
|
132
|
2192 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, wev->log, 0,
|
|
|
2193 "http writer done: \"%V?%V\"", &r->uri, &r->args);
|
|
0
|
2194
|
|
|
2195 ngx_http_finalize_request(r, rc);
|
|
|
2196 }
|
|
|
2197
|
|
|
2198
|
|
426
|
2199 static void
|
|
|
2200 ngx_http_request_finalizer(ngx_http_request_t *r)
|
|
|
2201 {
|
|
|
2202 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
2203 "http finalizer done: \"%V?%V\"", &r->uri, &r->args);
|
|
|
2204
|
|
|
2205 ngx_http_finalize_request(r, 0);
|
|
|
2206 }
|
|
|
2207
|
|
|
2208
|
|
326
|
2209 void
|
|
|
2210 ngx_http_block_reading(ngx_http_request_t *r)
|
|
0
|
2211 {
|
|
318
|
2212 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
326
|
2213 "http reading blocked");
|
|
318
|
2214
|
|
|
2215 /* aio does not call this handler */
|
|
|
2216
|
|
|
2217 if ((ngx_event_flags & NGX_USE_LEVEL_EVENT)
|
|
|
2218 && r->connection->read->active)
|
|
|
2219 {
|
|
430
|
2220 if (ngx_del_event(r->connection->read, NGX_READ_EVENT, 0) != NGX_OK) {
|
|
318
|
2221 ngx_http_close_request(r, 0);
|
|
|
2222 }
|
|
|
2223 }
|
|
|
2224 }
|
|
|
2225
|
|
|
2226
|
|
416
|
2227 void
|
|
326
|
2228 ngx_http_test_reading(ngx_http_request_t *r)
|
|
318
|
2229 {
|
|
276
|
2230 int n;
|
|
|
2231 char buf[1];
|
|
|
2232 ngx_err_t err;
|
|
|
2233 ngx_event_t *rev;
|
|
|
2234 ngx_connection_t *c;
|
|
|
2235
|
|
|
2236 c = r->connection;
|
|
|
2237 rev = c->read;
|
|
|
2238
|
|
326
|
2239 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "http test reading");
|
|
276
|
2240
|
|
|
2241 #if (NGX_HAVE_KQUEUE)
|
|
|
2242
|
|
|
2243 if (ngx_event_flags & NGX_USE_KQUEUE_EVENT) {
|
|
|
2244
|
|
|
2245 if (!rev->pending_eof) {
|
|
|
2246 return;
|
|
|
2247 }
|
|
|
2248
|
|
|
2249 rev->eof = 1;
|
|
|
2250 c->error = 1;
|
|
|
2251 err = rev->kq_errno;
|
|
|
2252
|
|
|
2253 goto closed;
|
|
|
2254 }
|
|
|
2255
|
|
|
2256 #endif
|
|
|
2257
|
|
|
2258 n = recv(c->fd, buf, 1, MSG_PEEK);
|
|
|
2259
|
|
|
2260 if (n == 0) {
|
|
|
2261 rev->eof = 1;
|
|
|
2262 c->error = 1;
|
|
|
2263 err = 0;
|
|
|
2264
|
|
|
2265 goto closed;
|
|
|
2266
|
|
|
2267 } else if (n == -1) {
|
|
|
2268 err = ngx_socket_errno;
|
|
|
2269
|
|
|
2270 if (err != NGX_EAGAIN) {
|
|
|
2271 rev->eof = 1;
|
|
|
2272 c->error = 1;
|
|
|
2273
|
|
|
2274 goto closed;
|
|
|
2275 }
|
|
|
2276 }
|
|
0
|
2277
|
|
|
2278 /* aio does not call this handler */
|
|
|
2279
|
|
276
|
2280 if ((ngx_event_flags & NGX_USE_LEVEL_EVENT) && rev->active) {
|
|
|
2281
|
|
430
|
2282 if (ngx_del_event(rev, NGX_READ_EVENT, 0) != NGX_OK) {
|
|
0
|
2283 ngx_http_close_request(r, 0);
|
|
|
2284 }
|
|
|
2285 }
|
|
276
|
2286
|
|
|
2287 return;
|
|
|
2288
|
|
|
2289 closed:
|
|
|
2290
|
|
|
2291 if (err) {
|
|
|
2292 rev->error = 1;
|
|
|
2293 }
|
|
|
2294
|
|
|
2295 ngx_log_error(NGX_LOG_INFO, c->log, err,
|
|
|
2296 "client closed prematurely connection");
|
|
|
2297
|
|
286
|
2298 ngx_http_finalize_request(r, 0);
|
|
0
|
2299 }
|
|
|
2300
|
|
|
2301
|
|
50
|
2302 static void
|
|
|
2303 ngx_http_set_keepalive(ngx_http_request_t *r)
|
|
0
|
2304 {
|
|
2
|
2305 int tcp_nodelay;
|
|
0
|
2306 ngx_int_t i;
|
|
|
2307 ngx_buf_t *b, *f;
|
|
|
2308 ngx_event_t *rev, *wev;
|
|
|
2309 ngx_connection_t *c;
|
|
|
2310 ngx_http_connection_t *hc;
|
|
|
2311 ngx_http_core_srv_conf_t *cscf;
|
|
|
2312 ngx_http_core_loc_conf_t *clcf;
|
|
|
2313
|
|
|
2314 c = r->connection;
|
|
|
2315 rev = c->read;
|
|
|
2316
|
|
326
|
2317 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
2318
|
|
0
|
2319 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "set http keepalive handler");
|
|
|
2320
|
|
326
|
2321 if (r->discard_body) {
|
|
442
|
2322 r->write_event_handler = ngx_http_request_empty_handler;
|
|
326
|
2323 r->lingering_time = ngx_time() + (time_t) (clcf->lingering_time / 1000);
|
|
|
2324 ngx_add_timer(rev, clcf->lingering_timeout);
|
|
|
2325 return;
|
|
|
2326 }
|
|
|
2327
|
|
32
|
2328 c->log->action = "closing request";
|
|
0
|
2329
|
|
|
2330 hc = r->http_connection;
|
|
|
2331 b = r->header_in;
|
|
|
2332
|
|
|
2333 if (b->pos < b->last) {
|
|
|
2334
|
|
|
2335 /* the pipelined request */
|
|
|
2336
|
|
|
2337 if (b != c->buffer) {
|
|
|
2338
|
|
4
|
2339 /*
|
|
|
2340 * If the large header buffers were allocated while the previous
|
|
|
2341 * request processing then we do not use c->buffer for
|
|
|
2342 * the pipelined request (see ngx_http_init_request()).
|
|
126
|
2343 *
|
|
4
|
2344 * Now we would move the large header buffers to the free list.
|
|
|
2345 */
|
|
0
|
2346
|
|
|
2347 cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
|
|
|
2348
|
|
|
2349 if (hc->free == NULL) {
|
|
|
2350 hc->free = ngx_palloc(c->pool,
|
|
|
2351 cscf->large_client_header_buffers.num * sizeof(ngx_buf_t *));
|
|
|
2352
|
|
|
2353 if (hc->free == NULL) {
|
|
26
|
2354 ngx_http_close_request(r, 0);
|
|
0
|
2355 return;
|
|
|
2356 }
|
|
|
2357 }
|
|
|
2358
|
|
|
2359 for (i = 0; i < hc->nbusy - 1; i++) {
|
|
|
2360 f = hc->busy[i];
|
|
|
2361 hc->free[hc->nfree++] = f;
|
|
|
2362 f->pos = f->start;
|
|
|
2363 f->last = f->start;
|
|
|
2364 }
|
|
|
2365
|
|
|
2366 hc->busy[0] = b;
|
|
|
2367 hc->nbusy = 1;
|
|
|
2368 }
|
|
|
2369 }
|
|
|
2370
|
|
118
|
2371 ngx_http_request_done(r, 0);
|
|
|
2372
|
|
0
|
2373 c->data = hc;
|
|
|
2374
|
|
|
2375 ngx_add_timer(rev, clcf->keepalive_timeout);
|
|
|
2376
|
|
430
|
2377 if (ngx_handle_read_event(rev, 0) != NGX_OK) {
|
|
0
|
2378 ngx_http_close_connection(c);
|
|
|
2379 return;
|
|
|
2380 }
|
|
|
2381
|
|
|
2382 wev = c->write;
|
|
58
|
2383 wev->handler = ngx_http_empty_handler;
|
|
0
|
2384
|
|
|
2385 if (b->pos < b->last) {
|
|
|
2386
|
|
|
2387 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "pipelined request");
|
|
|
2388
|
|
116
|
2389 #if (NGX_STAT_STUB)
|
|
498
|
2390 (void) ngx_atomic_fetch_add(ngx_stat_reading, 1);
|
|
116
|
2391 #endif
|
|
|
2392
|
|
0
|
2393 hc->pipeline = 1;
|
|
32
|
2394 c->log->action = "reading client pipelined request line";
|
|
116
|
2395
|
|
376
|
2396 rev->handler = ngx_http_init_request;
|
|
|
2397 ngx_post_event(rev, &ngx_posted_events);
|
|
0
|
2398 return;
|
|
|
2399 }
|
|
|
2400
|
|
|
2401 hc->pipeline = 0;
|
|
|
2402
|
|
4
|
2403 /*
|
|
|
2404 * To keep a memory footprint as small as possible for an idle
|
|
|
2405 * keepalive connection we try to free the ngx_http_request_t and
|
|
|
2406 * c->buffer's memory if they were allocated outside the c->pool.
|
|
|
2407 * The large header buffers are always allocated outside the c->pool and
|
|
|
2408 * are freed too.
|
|
|
2409 */
|
|
|
2410
|
|
0
|
2411 if (ngx_pfree(c->pool, r) == NGX_OK) {
|
|
|
2412 hc->request = NULL;
|
|
|
2413 }
|
|
|
2414
|
|
|
2415 b = c->buffer;
|
|
|
2416
|
|
|
2417 if (ngx_pfree(c->pool, b->start) == NGX_OK) {
|
|
4
|
2418
|
|
|
2419 /*
|
|
|
2420 * the special note for ngx_http_keepalive_handler() that
|
|
|
2421 * c->buffer's memory was freed
|
|
|
2422 */
|
|
|
2423
|
|
0
|
2424 b->pos = NULL;
|
|
|
2425
|
|
|
2426 } else {
|
|
|
2427 b->pos = b->start;
|
|
|
2428 b->last = b->start;
|
|
|
2429 }
|
|
|
2430
|
|
10
|
2431 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, c->log, 0, "hc free: %p %d",
|
|
0
|
2432 hc->free, hc->nfree);
|
|
|
2433
|
|
|
2434 if (hc->free) {
|
|
|
2435 for (i = 0; i < hc->nfree; i++) {
|
|
356
|
2436 ngx_pfree(c->pool, hc->free[i]->start);
|
|
0
|
2437 hc->free[i] = NULL;
|
|
|
2438 }
|
|
|
2439
|
|
|
2440 hc->nfree = 0;
|
|
|
2441 }
|
|
|
2442
|
|
10
|
2443 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, c->log, 0, "hc busy: %p %d",
|
|
0
|
2444 hc->busy, hc->nbusy);
|
|
|
2445
|
|
|
2446 if (hc->busy) {
|
|
|
2447 for (i = 0; i < hc->nbusy; i++) {
|
|
356
|
2448 ngx_pfree(c->pool, hc->busy[i]->start);
|
|
0
|
2449 hc->busy[i] = NULL;
|
|
|
2450 }
|
|
|
2451
|
|
|
2452 hc->nbusy = 0;
|
|
|
2453 }
|
|
|
2454
|
|
358
|
2455 #if (NGX_HTTP_SSL)
|
|
|
2456 if (c->ssl) {
|
|
|
2457 ngx_ssl_free_buffer(c);
|
|
|
2458 }
|
|
|
2459 #endif
|
|
|
2460
|
|
58
|
2461 rev->handler = ngx_http_keepalive_handler;
|
|
0
|
2462
|
|
132
|
2463 if (wev->active && (ngx_event_flags & NGX_USE_LEVEL_EVENT)) {
|
|
430
|
2464 if (ngx_del_event(wev, NGX_WRITE_EVENT, 0) != NGX_OK) {
|
|
132
|
2465 ngx_http_close_connection(c);
|
|
|
2466 return;
|
|
0
|
2467 }
|
|
|
2468 }
|
|
|
2469
|
|
32
|
2470 c->log->action = "keepalive";
|
|
0
|
2471
|
|
|
2472 if (c->tcp_nopush == NGX_TCP_NOPUSH_SET) {
|
|
50
|
2473 if (ngx_tcp_push(c->fd) == -1) {
|
|
0
|
2474 ngx_connection_error(c, ngx_socket_errno, ngx_tcp_push_n " failed");
|
|
|
2475 ngx_http_close_connection(c);
|
|
|
2476 return;
|
|
|
2477 }
|
|
2
|
2478
|
|
0
|
2479 c->tcp_nopush = NGX_TCP_NOPUSH_UNSET;
|
|
22
|
2480 tcp_nodelay = ngx_tcp_nodelay_and_tcp_nopush ? 1 : 0;
|
|
2
|
2481
|
|
|
2482 } else {
|
|
22
|
2483 tcp_nodelay = 1;
|
|
|
2484 }
|
|
|
2485
|
|
32
|
2486 if (tcp_nodelay
|
|
|
2487 && clcf->tcp_nodelay
|
|
|
2488 && c->tcp_nodelay == NGX_TCP_NODELAY_UNSET)
|
|
|
2489 {
|
|
22
|
2490 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "tcp_nodelay");
|
|
|
2491
|
|
|
2492 if (setsockopt(c->fd, IPPROTO_TCP, TCP_NODELAY,
|
|
184
|
2493 (const void *) &tcp_nodelay, sizeof(int))
|
|
|
2494 == -1)
|
|
22
|
2495 {
|
|
460
|
2496 #if (NGX_SOLARIS)
|
|
|
2497 /* Solaris returns EINVAL if a socket has been shut down */
|
|
|
2498 c->log_error = NGX_ERROR_IGNORE_EINVAL;
|
|
|
2499 #endif
|
|
|
2500
|
|
22
|
2501 ngx_connection_error(c, ngx_socket_errno,
|
|
|
2502 "setsockopt(TCP_NODELAY) failed");
|
|
460
|
2503
|
|
|
2504 c->log_error = NGX_ERROR_INFO;
|
|
22
|
2505 ngx_http_close_connection(c);
|
|
|
2506 return;
|
|
2
|
2507 }
|
|
22
|
2508
|
|
32
|
2509 c->tcp_nodelay = NGX_TCP_NODELAY_SET;
|
|
0
|
2510 }
|
|
|
2511
|
|
|
2512 #if 0
|
|
4
|
2513 /* if ngx_http_request_t was freed then we need some other place */
|
|
0
|
2514 r->http_state = NGX_HTTP_KEEPALIVE_STATE;
|
|
|
2515 #endif
|
|
|
2516
|
|
290
|
2517 c->idle = 1;
|
|
|
2518
|
|
0
|
2519 if (rev->ready) {
|
|
376
|
2520 ngx_post_event(rev, &ngx_posted_events);
|
|
0
|
2521 }
|
|
|
2522 }
|
|
|
2523
|
|
|
2524
|
|
50
|
2525 static void
|
|
|
2526 ngx_http_keepalive_handler(ngx_event_t *rev)
|
|
0
|
2527 {
|
|
50
|
2528 size_t size;
|
|
|
2529 ssize_t n;
|
|
|
2530 ngx_buf_t *b;
|
|
|
2531 ngx_connection_t *c;
|
|
0
|
2532
|
|
|
2533 c = rev->data;
|
|
|
2534
|
|
|
2535 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "http keepalive handler");
|
|
|
2536
|
|
290
|
2537 if (rev->timedout || c->close) {
|
|
0
|
2538 ngx_http_close_connection(c);
|
|
|
2539 return;
|
|
|
2540 }
|
|
|
2541
|
|
18
|
2542 #if (NGX_HAVE_KQUEUE)
|
|
0
|
2543
|
|
4
|
2544 if (ngx_event_flags & NGX_USE_KQUEUE_EVENT) {
|
|
136
|
2545 if (rev->pending_eof) {
|
|
32
|
2546 c->log->handler = NULL;
|
|
0
|
2547 ngx_log_error(NGX_LOG_INFO, c->log, rev->kq_errno,
|
|
10
|
2548 "kevent() reported that client %V closed "
|
|
32
|
2549 "keepalive connection", &c->addr_text);
|
|
22
|
2550 #if (NGX_HTTP_SSL)
|
|
|
2551 if (c->ssl) {
|
|
96
|
2552 c->ssl->no_send_shutdown = 1;
|
|
22
|
2553 }
|
|
|
2554 #endif
|
|
0
|
2555 ngx_http_close_connection(c);
|
|
|
2556 return;
|
|
|
2557 }
|
|
|
2558 }
|
|
|
2559
|
|
|
2560 #endif
|
|
|
2561
|
|
|
2562 b = c->buffer;
|
|
|
2563 size = b->end - b->start;
|
|
|
2564
|
|
|
2565 if (b->pos == NULL) {
|
|
4
|
2566
|
|
|
2567 /*
|
|
|
2568 * The c->buffer's memory was freed by ngx_http_set_keepalive().
|
|
|
2569 * However, the c->buffer->start and c->buffer->end were not changed
|
|
|
2570 * to keep the buffer size.
|
|
|
2571 */
|
|
|
2572
|
|
50
|
2573 b->pos = ngx_palloc(c->pool, size);
|
|
|
2574 if (b->pos == NULL) {
|
|
0
|
2575 ngx_http_close_connection(c);
|
|
|
2576 return;
|
|
|
2577 }
|
|
|
2578
|
|
|
2579 b->start = b->pos;
|
|
|
2580 b->last = b->pos;
|
|
|
2581 b->end = b->pos + size;
|
|
|
2582 }
|
|
|
2583
|
|
|
2584 /*
|
|
|
2585 * MSIE closes a keepalive connection with RST flag
|
|
|
2586 * so we ignore ECONNRESET here.
|
|
|
2587 */
|
|
|
2588
|
|
|
2589 c->log_error = NGX_ERROR_IGNORE_ECONNRESET;
|
|
|
2590 ngx_set_socket_errno(0);
|
|
|
2591
|
|
|
2592 n = c->recv(c, b->last, size);
|
|
|
2593 c->log_error = NGX_ERROR_INFO;
|
|
|
2594
|
|
|
2595 if (n == NGX_AGAIN) {
|
|
430
|
2596 if (ngx_handle_read_event(rev, 0) != NGX_OK) {
|
|
24
|
2597 ngx_http_close_connection(c);
|
|
|
2598 }
|
|
|
2599
|
|
0
|
2600 return;
|
|
|
2601 }
|
|
|
2602
|
|
|
2603 if (n == NGX_ERROR) {
|
|
|
2604 ngx_http_close_connection(c);
|
|
|
2605 return;
|
|
|
2606 }
|
|
|
2607
|
|
32
|
2608 c->log->handler = NULL;
|
|
0
|
2609
|
|
|
2610 if (n == 0) {
|
|
|
2611 ngx_log_error(NGX_LOG_INFO, c->log, ngx_socket_errno,
|
|
32
|
2612 "client %V closed keepalive connection", &c->addr_text);
|
|
0
|
2613 ngx_http_close_connection(c);
|
|
|
2614 return;
|
|
|
2615 }
|
|
|
2616
|
|
|
2617 b->last += n;
|
|
32
|
2618
|
|
116
|
2619 #if (NGX_STAT_STUB)
|
|
498
|
2620 (void) ngx_atomic_fetch_add(ngx_stat_reading, 1);
|
|
116
|
2621 #endif
|
|
|
2622
|
|
32
|
2623 c->log->handler = ngx_http_log_error;
|
|
|
2624 c->log->action = "reading client request line";
|
|
0
|
2625
|
|
290
|
2626 c->idle = 0;
|
|
|
2627
|
|
0
|
2628 ngx_http_init_request(rev);
|
|
|
2629 }
|
|
|
2630
|
|
|
2631
|
|
50
|
2632 static void
|
|
|
2633 ngx_http_set_lingering_close(ngx_http_request_t *r)
|
|
126
|
2634 {
|
|
0
|
2635 ngx_event_t *rev, *wev;
|
|
|
2636 ngx_connection_t *c;
|
|
|
2637 ngx_http_core_loc_conf_t *clcf;
|
|
|
2638
|
|
|
2639 c = r->connection;
|
|
|
2640
|
|
|
2641 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
2642
|
|
|
2643 rev = c->read;
|
|
58
|
2644 rev->handler = ngx_http_lingering_close_handler;
|
|
0
|
2645
|
|
106
|
2646 r->lingering_time = ngx_time() + (time_t) (clcf->lingering_time / 1000);
|
|
0
|
2647 ngx_add_timer(rev, clcf->lingering_timeout);
|
|
|
2648
|
|
430
|
2649 if (ngx_handle_read_event(rev, 0) != NGX_OK) {
|
|
0
|
2650 ngx_http_close_request(r, 0);
|
|
|
2651 return;
|
|
|
2652 }
|
|
|
2653
|
|
|
2654 wev = c->write;
|
|
58
|
2655 wev->handler = ngx_http_empty_handler;
|
|
0
|
2656
|
|
132
|
2657 if (wev->active && (ngx_event_flags & NGX_USE_LEVEL_EVENT)) {
|
|
430
|
2658 if (ngx_del_event(wev, NGX_WRITE_EVENT, 0) != NGX_OK) {
|
|
132
|
2659 ngx_http_close_request(r, 0);
|
|
|
2660 return;
|
|
0
|
2661 }
|
|
|
2662 }
|
|
|
2663
|
|
|
2664 if (ngx_shutdown_socket(c->fd, NGX_WRITE_SHUTDOWN) == -1) {
|
|
|
2665 ngx_connection_error(c, ngx_socket_errno,
|
|
|
2666 ngx_shutdown_socket_n " failed");
|
|
|
2667 ngx_http_close_request(r, 0);
|
|
|
2668 return;
|
|
|
2669 }
|
|
|
2670
|
|
|
2671 if (rev->ready) {
|
|
|
2672 ngx_http_lingering_close_handler(rev);
|
|
|
2673 }
|
|
|
2674 }
|
|
|
2675
|
|
|
2676
|
|
50
|
2677 static void
|
|
|
2678 ngx_http_lingering_close_handler(ngx_event_t *rev)
|
|
0
|
2679 {
|
|
|
2680 ssize_t n;
|
|
|
2681 ngx_msec_t timer;
|
|
|
2682 ngx_connection_t *c;
|
|
|
2683 ngx_http_request_t *r;
|
|
|
2684 ngx_http_core_loc_conf_t *clcf;
|
|
|
2685 u_char buffer[NGX_HTTP_LINGERING_BUFFER_SIZE];
|
|
|
2686
|
|
|
2687 c = rev->data;
|
|
|
2688 r = c->data;
|
|
|
2689
|
|
|
2690 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
|
2691 "http lingering close handler");
|
|
|
2692
|
|
|
2693 if (rev->timedout) {
|
|
126
|
2694 c->timedout = 1;
|
|
0
|
2695 ngx_http_close_request(r, 0);
|
|
|
2696 return;
|
|
|
2697 }
|
|
|
2698
|
|
346
|
2699 timer = (ngx_msec_t) (r->lingering_time - ngx_time());
|
|
0
|
2700 if (timer <= 0) {
|
|
|
2701 ngx_http_close_request(r, 0);
|
|
|
2702 return;
|
|
|
2703 }
|
|
|
2704
|
|
|
2705 do {
|
|
|
2706 n = c->recv(c, buffer, NGX_HTTP_LINGERING_BUFFER_SIZE);
|
|
|
2707
|
|
|
2708 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0, "lingering read: %d", n);
|
|
|
2709
|
|
|
2710 if (n == NGX_ERROR || n == 0) {
|
|
|
2711 ngx_http_close_request(r, 0);
|
|
|
2712 return;
|
|
|
2713 }
|
|
|
2714
|
|
|
2715 } while (rev->ready);
|
|
|
2716
|
|
430
|
2717 if (ngx_handle_read_event(rev, 0) != NGX_OK) {
|
|
26
|
2718 ngx_http_close_request(r, 0);
|
|
24
|
2719 return;
|
|
|
2720 }
|
|
|
2721
|
|
0
|
2722 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
2723
|
|
|
2724 timer *= 1000;
|
|
|
2725
|
|
|
2726 if (timer > clcf->lingering_timeout) {
|
|
|
2727 timer = clcf->lingering_timeout;
|
|
|
2728 }
|
|
|
2729
|
|
|
2730 ngx_add_timer(rev, timer);
|
|
|
2731 }
|
|
|
2732
|
|
|
2733
|
|
50
|
2734 void
|
|
|
2735 ngx_http_empty_handler(ngx_event_t *wev)
|
|
0
|
2736 {
|
|
|
2737 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, wev->log, 0, "http empty handler");
|
|
|
2738
|
|
|
2739 return;
|
|
|
2740 }
|
|
|
2741
|
|
|
2742
|
|
58
|
2743 void
|
|
|
2744 ngx_http_request_empty_handler(ngx_http_request_t *r)
|
|
|
2745 {
|
|
|
2746 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
132
|
2747 "http request empty handler");
|
|
58
|
2748
|
|
|
2749 return;
|
|
|
2750 }
|
|
|
2751
|
|
|
2752
|
|
50
|
2753 ngx_int_t
|
|
130
|
2754 ngx_http_send_special(ngx_http_request_t *r, ngx_uint_t flags)
|
|
0
|
2755 {
|
|
|
2756 ngx_buf_t *b;
|
|
|
2757 ngx_chain_t out;
|
|
|
2758
|
|
50
|
2759 b = ngx_calloc_buf(r->pool);
|
|
|
2760 if (b == NULL) {
|
|
0
|
2761 return NGX_ERROR;
|
|
|
2762 }
|
|
|
2763
|
|
130
|
2764 if (flags & NGX_HTTP_LAST) {
|
|
502
|
2765
|
|
|
2766 if (r == r->main && !r->post_action) {
|
|
|
2767 b->last_buf = 1;
|
|
|
2768
|
|
|
2769 } else {
|
|
|
2770 b->sync = 1;
|
|
|
2771 b->last_in_chain = 1;
|
|
|
2772 }
|
|
130
|
2773 }
|
|
|
2774
|
|
|
2775 if (flags & NGX_HTTP_FLUSH) {
|
|
|
2776 b->flush = 1;
|
|
|
2777 }
|
|
|
2778
|
|
0
|
2779 out.buf = b;
|
|
|
2780 out.next = NULL;
|
|
|
2781
|
|
|
2782 return ngx_http_output_filter(r, &out);
|
|
|
2783 }
|
|
|
2784
|
|
|
2785
|
|
162
|
2786 static ngx_int_t
|
|
|
2787 ngx_http_post_action(ngx_http_request_t *r)
|
|
|
2788 {
|
|
|
2789 ngx_http_core_loc_conf_t *clcf;
|
|
|
2790
|
|
|
2791 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
2792
|
|
|
2793 if (clcf->post_action.data == NULL) {
|
|
|
2794 return NGX_DECLINED;
|
|
|
2795 }
|
|
|
2796
|
|
172
|
2797 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
2798 "post action: \"%V\"", &clcf->post_action);
|
|
|
2799
|
|
162
|
2800 r->http_version = NGX_HTTP_VERSION_9;
|
|
|
2801 r->header_only = 1;
|
|
178
|
2802 r->post_action = 1;
|
|
162
|
2803
|
|
326
|
2804 r->read_event_handler = ngx_http_block_reading;
|
|
262
|
2805
|
|
366
|
2806 if (clcf->post_action.data[0] == '/') {
|
|
|
2807 ngx_http_internal_redirect(r, &clcf->post_action, NULL);
|
|
|
2808
|
|
|
2809 } else {
|
|
|
2810 ngx_http_named_location(r, &clcf->post_action);
|
|
|
2811 }
|
|
162
|
2812
|
|
|
2813 return NGX_OK;
|
|
|
2814 }
|
|
|
2815
|
|
|
2816
|
|
|
2817 static void
|
|
58
|
2818 ngx_http_close_request(ngx_http_request_t *r, ngx_int_t error)
|
|
0
|
2819 {
|
|
188
|
2820 ngx_connection_t *c;
|
|
118
|
2821
|
|
|
2822 c = r->connection;
|
|
188
|
2823
|
|
|
2824 ngx_http_request_done(r->main, error);
|
|
118
|
2825 ngx_http_close_connection(c);
|
|
|
2826 }
|
|
|
2827
|
|
|
2828
|
|
162
|
2829 static void
|
|
118
|
2830 ngx_http_request_done(ngx_http_request_t *r, ngx_int_t error)
|
|
|
2831 {
|
|
412
|
2832 ngx_log_t *log;
|
|
|
2833 struct linger linger;
|
|
|
2834 ngx_http_cleanup_t *cln;
|
|
|
2835 ngx_http_log_ctx_t *ctx;
|
|
|
2836 ngx_http_core_loc_conf_t *clcf;
|
|
0
|
2837
|
|
|
2838 log = r->connection->log;
|
|
|
2839
|
|
|
2840 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, log, 0, "http close request");
|
|
|
2841
|
|
|
2842 if (r->pool == NULL) {
|
|
80
|
2843 ngx_log_error(NGX_LOG_ALERT, log, 0, "http request already closed");
|
|
0
|
2844 return;
|
|
|
2845 }
|
|
|
2846
|
|
188
|
2847 for (cln = r->cleanup; cln; cln = cln->next) {
|
|
|
2848 if (cln->handler) {
|
|
|
2849 cln->handler(cln->data);
|
|
|
2850 }
|
|
|
2851 }
|
|
|
2852
|
|
0
|
2853 #if (NGX_STAT_STUB)
|
|
116
|
2854
|
|
0
|
2855 if (r->stat_reading) {
|
|
498
|
2856 (void) ngx_atomic_fetch_add(ngx_stat_reading, -1);
|
|
0
|
2857 }
|
|
|
2858
|
|
|
2859 if (r->stat_writing) {
|
|
498
|
2860 (void) ngx_atomic_fetch_add(ngx_stat_writing, -1);
|
|
0
|
2861 }
|
|
116
|
2862
|
|
0
|
2863 #endif
|
|
|
2864
|
|
|
2865 if (error && r->headers_out.status == 0) {
|
|
|
2866 r->headers_out.status = error;
|
|
|
2867 }
|
|
|
2868
|
|
386
|
2869 log->action = "logging request";
|
|
|
2870
|
|
412
|
2871 ngx_http_log_request(r);
|
|
0
|
2872
|
|
386
|
2873 log->action = "closing request";
|
|
|
2874
|
|
0
|
2875 if (r->connection->timedout) {
|
|
|
2876 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
2877
|
|
|
2878 if (clcf->reset_timedout_connection) {
|
|
58
|
2879 linger.l_onoff = 1;
|
|
|
2880 linger.l_linger = 0;
|
|
0
|
2881
|
|
|
2882 if (setsockopt(r->connection->fd, SOL_SOCKET, SO_LINGER,
|
|
58
|
2883 (const void *) &linger, sizeof(struct linger)) == -1)
|
|
0
|
2884 {
|
|
|
2885 ngx_log_error(NGX_LOG_ALERT, log, ngx_socket_errno,
|
|
|
2886 "setsockopt(SO_LINGER) failed");
|
|
|
2887 }
|
|
|
2888 }
|
|
|
2889 }
|
|
|
2890
|
|
58
|
2891 /* the various request strings were allocated from r->pool */
|
|
0
|
2892 ctx = log->data;
|
|
10
|
2893 ctx->request = NULL;
|
|
0
|
2894
|
|
|
2895 r->request_line.len = 0;
|
|
|
2896
|
|
132
|
2897 r->connection->destroyed = 1;
|
|
|
2898
|
|
0
|
2899 ngx_destroy_pool(r->pool);
|
|
|
2900 }
|
|
|
2901
|
|
|
2902
|
|
80
|
2903 static void
|
|
412
|
2904 ngx_http_log_request(ngx_http_request_t *r)
|
|
|
2905 {
|
|
|
2906 ngx_uint_t i, n;
|
|
|
2907 ngx_http_handler_pt *log_handler;
|
|
|
2908 ngx_http_core_main_conf_t *cmcf;
|
|
|
2909
|
|
|
2910 cmcf = ngx_http_get_module_main_conf(r, ngx_http_core_module);
|
|
|
2911
|
|
|
2912 log_handler = cmcf->phases[NGX_HTTP_LOG_PHASE].handlers.elts;
|
|
|
2913 n = cmcf->phases[NGX_HTTP_LOG_PHASE].handlers.nelts;
|
|
|
2914
|
|
|
2915 for (i = 0; i < n; i++) {
|
|
|
2916 log_handler[i](r);
|
|
|
2917 }
|
|
|
2918 }
|
|
|
2919
|
|
|
2920
|
|
|
2921 static void
|
|
50
|
2922 ngx_http_close_connection(ngx_connection_t *c)
|
|
0
|
2923 {
|
|
28
|
2924 ngx_pool_t *pool;
|
|
|
2925
|
|
0
|
2926 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
|
2927 "close http connection: %d", c->fd);
|
|
|
2928
|
|
88
|
2929 #if (NGX_HTTP_SSL)
|
|
2
|
2930
|
|
|
2931 if (c->ssl) {
|
|
|
2932 if (ngx_ssl_shutdown(c) == NGX_AGAIN) {
|
|
126
|
2933 c->ssl->handler = ngx_http_close_connection;
|
|
2
|
2934 return;
|
|
|
2935 }
|
|
|
2936 }
|
|
|
2937
|
|
|
2938 #endif
|
|
|
2939
|
|
0
|
2940 #if (NGX_STAT_STUB)
|
|
498
|
2941 (void) ngx_atomic_fetch_add(ngx_stat_active, -1);
|
|
0
|
2942 #endif
|
|
|
2943
|
|
132
|
2944 c->destroyed = 1;
|
|
|
2945
|
|
28
|
2946 pool = c->pool;
|
|
|
2947
|
|
0
|
2948 ngx_close_connection(c);
|
|
28
|
2949
|
|
50
|
2950 ngx_destroy_pool(pool);
|
|
0
|
2951 }
|
|
|
2952
|
|
|
2953
|
|
50
|
2954 static u_char *
|
|
|
2955 ngx_http_log_error(ngx_log_t *log, u_char *buf, size_t len)
|
|
0
|
2956 {
|
|
32
|
2957 u_char *p;
|
|
54
|
2958 ngx_http_request_t *r;
|
|
32
|
2959 ngx_http_log_ctx_t *ctx;
|
|
10
|
2960
|
|
32
|
2961 if (log->action) {
|
|
58
|
2962 p = ngx_snprintf(buf, len, " while %s", log->action);
|
|
10
|
2963 len -= p - buf;
|
|
54
|
2964 buf = p;
|
|
10
|
2965 }
|
|
|
2966
|
|
58
|
2967 ctx = log->data;
|
|
|
2968
|
|
362
|
2969 p = ngx_snprintf(buf, len, ", client: %V", &ctx->connection->addr_text);
|
|
58
|
2970 len -= p - buf;
|
|
54
|
2971
|
|
|
2972 r = ctx->request;
|
|
|
2973
|
|
58
|
2974 if (r) {
|
|
214
|
2975 return r->log_handler(r, ctx->current_request, p, len);
|
|
362
|
2976
|
|
|
2977 } else {
|
|
|
2978 p = ngx_snprintf(p, len, ", server: %V",
|
|
|
2979 &ctx->connection->listening->addr_text);
|
|
0
|
2980 }
|
|
10
|
2981
|
|
58
|
2982 return p;
|
|
|
2983 }
|
|
|
2984
|
|
|
2985
|
|
|
2986 static u_char *
|
|
214
|
2987 ngx_http_log_error_handler(ngx_http_request_t *r, ngx_http_request_t *sr,
|
|
|
2988 u_char *buf, size_t len)
|
|
58
|
2989 {
|
|
362
|
2990 char *uri_separator;
|
|
|
2991 u_char *p;
|
|
|
2992 ngx_http_upstream_t *u;
|
|
|
2993 ngx_http_core_srv_conf_t *cscf;
|
|
|
2994
|
|
|
2995 cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
|
|
|
2996
|
|
|
2997 p = ngx_snprintf(buf, len, ", server: %V", &cscf->server_name);
|
|
|
2998 len -= p - buf;
|
|
|
2999 buf = p;
|
|
52
|
3000
|
|
348
|
3001 if (r->request_line.data == NULL && r->request_start) {
|
|
|
3002 for (p = r->request_start; p < r->header_in->last; p++) {
|
|
|
3003 if (*p == CR || *p == LF) {
|
|
|
3004 break;
|
|
|
3005 }
|
|
|
3006 }
|
|
|
3007
|
|
|
3008 r->request_line.len = p - r->request_start;
|
|
|
3009 r->request_line.data = r->request_start;
|
|
|
3010 }
|
|
|
3011
|
|
|
3012 if (r->request_line.len) {
|
|
|
3013 p = ngx_snprintf(buf, len, ", request: \"%V\"", &r->request_line);
|
|
54
|
3014 len -= p - buf;
|
|
|
3015 buf = p;
|
|
10
|
3016 }
|
|
|
3017
|
|
214
|
3018 if (r != sr) {
|
|
|
3019 p = ngx_snprintf(buf, len, ", subrequest: \"%V\"", &sr->uri);
|
|
|
3020 len -= p - buf;
|
|
|
3021 buf = p;
|
|
|
3022 }
|
|
|
3023
|
|
|
3024 u = sr->upstream;
|
|
|
3025
|
|
260
|
3026 if (u && u->peer.name) {
|
|
|
3027
|
|
|
3028 uri_separator = "";
|
|
|
3029
|
|
|
3030 #if (NGX_HAVE_UNIX_DOMAIN)
|
|
|
3031 if (u->peer.sockaddr && u->peer.sockaddr->sa_family == AF_UNIX) {
|
|
|
3032 uri_separator = ":";
|
|
|
3033 }
|
|
|
3034 #endif
|
|
214
|
3035
|
|
|
3036 p = ngx_snprintf(buf, len, ", upstream: \"%V%V%s%V\"",
|
|
348
|
3037 &u->schema, u->peer.name,
|
|
260
|
3038 uri_separator, &u->uri);
|
|
214
|
3039 len -= p - buf;
|
|
|
3040 buf = p;
|
|
|
3041 }
|
|
|
3042
|
|
54
|
3043 if (r->headers_in.host) {
|
|
|
3044 p = ngx_snprintf(buf, len, ", host: \"%V\"",
|
|
|
3045 &r->headers_in.host->value);
|
|
|
3046 len -= p - buf;
|
|
|
3047 buf = p;
|
|
|
3048 }
|
|
|
3049
|
|
|
3050 if (r->headers_in.referer) {
|
|
|
3051 p = ngx_snprintf(buf, len, ", referrer: \"%V\"",
|
|
|
3052 &r->headers_in.referer->value);
|
|
|
3053 buf = p;
|
|
|
3054 }
|
|
|
3055
|
|
|
3056 return buf;
|
|
|
3057 }
|
