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0
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1
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2 /*
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3 * Copyright (C) Igor Sysoev
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4 */
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5
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6
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7 #include <ngx_config.h>
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8 #include <ngx_core.h>
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9 #include <ngx_event.h>
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10 #include <ngx_http.h>
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11
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12
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13 static void ngx_http_init_request(ngx_event_t *ev);
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14 static void ngx_http_process_request_line(ngx_event_t *rev);
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15 static void ngx_http_process_request_headers(ngx_event_t *rev);
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16 static ssize_t ngx_http_read_request_header(ngx_http_request_t *r);
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17 static ngx_int_t ngx_http_alloc_large_header_buffer(ngx_http_request_t *r,
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50
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18 ngx_uint_t request_line);
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58
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19
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20 static ngx_int_t ngx_http_process_header_line(ngx_http_request_t *r,
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21 ngx_table_elt_t *h, ngx_uint_t offset);
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72
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22 static ngx_int_t ngx_http_process_unique_header_line(ngx_http_request_t *r,
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23 ngx_table_elt_t *h, ngx_uint_t offset);
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336
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24 static ngx_int_t ngx_http_process_connection(ngx_http_request_t *r,
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25 ngx_table_elt_t *h, ngx_uint_t offset);
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58
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26 static ngx_int_t ngx_http_process_cookie(ngx_http_request_t *r,
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27 ngx_table_elt_t *h, ngx_uint_t offset);
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28
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0
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29 static ngx_int_t ngx_http_process_request_header(ngx_http_request_t *r);
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308
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30 static void ngx_http_process_request(ngx_http_request_t *r);
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306
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31 static void ngx_http_find_virtual_server(ngx_http_request_t *r, u_char *host,
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32 size_t len, ngx_uint_t hash);
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0
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33
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58
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34 static void ngx_http_request_handler(ngx_event_t *ev);
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74
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35 static ngx_int_t ngx_http_set_write_handler(ngx_http_request_t *r);
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58
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36 static void ngx_http_writer(ngx_http_request_t *r);
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37
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326
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38 static void ngx_http_test_reading(ngx_http_request_t *r);
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0
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39 static void ngx_http_set_keepalive(ngx_http_request_t *r);
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40 static void ngx_http_keepalive_handler(ngx_event_t *ev);
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41 static void ngx_http_set_lingering_close(ngx_http_request_t *r);
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42 static void ngx_http_lingering_close_handler(ngx_event_t *ev);
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162
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43 static ngx_int_t ngx_http_post_action(ngx_http_request_t *r);
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80
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44 static void ngx_http_close_request(ngx_http_request_t *r, ngx_int_t error);
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118
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45 static void ngx_http_request_done(ngx_http_request_t *r, ngx_int_t error);
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80
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46 static void ngx_http_close_connection(ngx_connection_t *c);
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0
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47
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32
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48 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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49 static u_char *ngx_http_log_error_handler(ngx_http_request_t *r,
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50 ngx_http_request_t *sr, u_char *buf, size_t len);
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0
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51
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88
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52 #if (NGX_HTTP_SSL)
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53 static void ngx_http_ssl_handshake(ngx_event_t *rev);
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96
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54 static void ngx_http_ssl_handshake_handler(ngx_connection_t *c);
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88
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55 #endif
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56
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0
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57
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54
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58 static char *ngx_http_client_errors[] = {
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59
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60 /* NGX_HTTP_PARSE_INVALID_METHOD */
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61 "client sent invalid method",
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62
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63 /* NGX_HTTP_PARSE_INVALID_REQUEST */
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64 "client sent invalid request",
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65
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66 /* NGX_HTTP_PARSE_INVALID_09_METHOD */
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67 "client sent invalid method in HTTP/0.9 request"
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0
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68 };
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69
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70
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71 ngx_http_header_t ngx_http_headers_in[] = {
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58
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72 { ngx_string("Host"), offsetof(ngx_http_headers_in_t, host),
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72
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73 ngx_http_process_unique_header_line },
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58
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74
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75 { ngx_string("Connection"), offsetof(ngx_http_headers_in_t, connection),
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336
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76 ngx_http_process_connection },
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58
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77
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0
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78 { ngx_string("If-Modified-Since"),
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58
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79 offsetof(ngx_http_headers_in_t, if_modified_since),
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332
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80 ngx_http_process_unique_header_line },
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58
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81
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82 { ngx_string("User-Agent"), offsetof(ngx_http_headers_in_t, user_agent),
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83 ngx_http_process_header_line },
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84
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85 { ngx_string("Referer"), offsetof(ngx_http_headers_in_t, referer),
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86 ngx_http_process_header_line },
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87
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0
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88 { ngx_string("Content-Length"),
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58
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89 offsetof(ngx_http_headers_in_t, content_length),
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72
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90 ngx_http_process_unique_header_line },
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58
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91
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28
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92 { ngx_string("Content-Type"),
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58
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93 offsetof(ngx_http_headers_in_t, content_type),
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94 ngx_http_process_header_line },
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95
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96 { ngx_string("Range"), offsetof(ngx_http_headers_in_t, range),
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97 ngx_http_process_header_line },
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98
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346
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99 { ngx_string("If-Range"),
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100 offsetof(ngx_http_headers_in_t, if_range),
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101 ngx_http_process_unique_header_line },
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102
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130
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103 { ngx_string("Transfer-Encoding"),
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104 offsetof(ngx_http_headers_in_t, transfer_encoding),
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105 ngx_http_process_header_line },
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106
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0
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107 #if (NGX_HTTP_GZIP)
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108 { ngx_string("Accept-Encoding"),
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58
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109 offsetof(ngx_http_headers_in_t, accept_encoding),
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110 ngx_http_process_header_line },
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111
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112 { ngx_string("Via"), offsetof(ngx_http_headers_in_t, via),
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113 ngx_http_process_header_line },
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0
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114 #endif
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115
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116 { ngx_string("Authorization"),
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58
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117 offsetof(ngx_http_headers_in_t, authorization),
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72
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118 ngx_http_process_unique_header_line },
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58
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119
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120 { ngx_string("Keep-Alive"), offsetof(ngx_http_headers_in_t, keep_alive),
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121 ngx_http_process_header_line },
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0
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122
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122
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123 #if (NGX_HTTP_PROXY || NGX_HTTP_REALIP)
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0
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124 { ngx_string("X-Forwarded-For"),
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58
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125 offsetof(ngx_http_headers_in_t, x_forwarded_for),
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126 ngx_http_process_header_line },
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0
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127 #endif
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28
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128
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122
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129 #if (NGX_HTTP_REALIP)
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130 { ngx_string("X-Real-IP"),
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131 offsetof(ngx_http_headers_in_t, x_real_ip),
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132 ngx_http_process_header_line },
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133 #endif
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134
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38
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135 #if (NGX_HTTP_HEADERS)
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58
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136 { ngx_string("Accept"), offsetof(ngx_http_headers_in_t, accept),
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137 ngx_http_process_header_line },
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138
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38
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139 { ngx_string("Accept-Language"),
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58
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140 offsetof(ngx_http_headers_in_t, accept_language),
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141 ngx_http_process_header_line },
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38
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142 #endif
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143
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186
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144 #if (NGX_HTTP_DAV)
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145 { ngx_string("Depth"), offsetof(ngx_http_headers_in_t, depth),
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146 ngx_http_process_header_line },
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147
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148 { ngx_string("Destination"), offsetof(ngx_http_headers_in_t, destination),
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149 ngx_http_process_header_line },
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230
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150
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276
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151 { ngx_string("Overwrite"), offsetof(ngx_http_headers_in_t, overwrite),
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152 ngx_http_process_header_line },
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153
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230
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154 { ngx_string("Date"), offsetof(ngx_http_headers_in_t, date),
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155 ngx_http_process_header_line },
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186
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156 #endif
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157
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58
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158 { ngx_string("Cookie"), 0, ngx_http_process_cookie },
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159
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160 { ngx_null_string, 0, NULL }
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0
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161 };
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162
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163
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50
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164 void
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165 ngx_http_init_connection(ngx_connection_t *c)
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0
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166 {
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167 ngx_event_t *rev;
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168 ngx_http_log_ctx_t *ctx;
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169
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50
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170 ctx = ngx_palloc(c->pool, sizeof(ngx_http_log_ctx_t));
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171 if (ctx == NULL) {
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0
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172 ngx_http_close_connection(c);
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173 return;
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174 }
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175
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10
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176 ctx->client = &c->addr_text;
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177 ctx->request = NULL;
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214
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178 ctx->current_request = NULL;
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32
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179
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180 c->log->connection = c->number;
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181 c->log->handler = ngx_http_log_error;
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0
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182 c->log->data = ctx;
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32
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183 c->log->action = "reading client request line";
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184
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0
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185 c->log_error = NGX_ERROR_INFO;
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186
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187 rev = c->read;
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58
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188 rev->handler = ngx_http_init_request;
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118
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189 c->write->handler = ngx_http_empty_handler;
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0
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190
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116
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191 #if (NGX_STAT_STUB)
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192 ngx_atomic_fetch_add(ngx_stat_reading, 1);
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193 #endif
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194
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0
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195 if (rev->ready) {
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196 /* the deferred accept(), rtsig, aio, iocp */
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197
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160
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198 if (ngx_use_accept_mutex) {
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112
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199 ngx_post_event(rev, &ngx_posted_events);
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0
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200 return;
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201 }
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202
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203 ngx_http_init_request(rev);
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204 return;
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205 }
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206
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207 ngx_add_timer(rev, c->listening->post_accept_timeout);
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208
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209 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) {
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116
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210 #if (NGX_STAT_STUB)
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211 ngx_atomic_fetch_add(ngx_stat_reading, -1);
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212 #endif
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0
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213 ngx_http_close_connection(c);
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214 return;
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215 }
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216 }
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217
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218
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190
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219 static void
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220 ngx_http_init_request(ngx_event_t *rev)
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0
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221 {
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298
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222 ngx_time_t *tp;
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190
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223 socklen_t len;
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122
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224 ngx_uint_t i;
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225 struct sockaddr_in sin;
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226 ngx_connection_t *c;
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227 ngx_http_request_t *r;
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142
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228 ngx_http_in_port_t *hip;
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229 ngx_http_in_addr_t *hia;
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122
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230 ngx_http_log_ctx_t *ctx;
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231 ngx_http_connection_t *hc;
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232 ngx_http_core_srv_conf_t *cscf;
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233 ngx_http_core_loc_conf_t *clcf;
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234 ngx_http_core_main_conf_t *cmcf;
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0
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235
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116
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236 #if (NGX_STAT_STUB)
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237 ngx_atomic_fetch_add(ngx_stat_reading, -1);
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238 #endif
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239
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0
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240 c = rev->data;
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241
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242 if (rev->timedout) {
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243 ngx_log_error(NGX_LOG_INFO, c->log, NGX_ETIMEDOUT, "client timed out");
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244
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245 ngx_http_close_connection(c);
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246 return;
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247 }
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248
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249 hc = c->data;
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250
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116
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251 if (hc == NULL) {
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50
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252 hc = ngx_pcalloc(c->pool, sizeof(ngx_http_connection_t));
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253 if (hc == NULL) {
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0
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254 ngx_http_close_connection(c);
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255 return;
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256 }
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257 }
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258
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259 r = hc->request;
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260
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261 if (r) {
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262 ngx_memzero(r, sizeof(ngx_http_request_t));
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263
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264 r->pipeline = hc->pipeline;
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265
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266 if (hc->nbusy) {
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267 r->header_in = hc->busy[0];
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268 }
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269
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270 } else {
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50
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271 r = ngx_pcalloc(c->pool, sizeof(ngx_http_request_t));
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272 if (r == NULL) {
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0
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273 ngx_http_close_connection(c);
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274 return;
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275 }
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276
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277 hc->request = r;
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278 }
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279
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280 c->data = r;
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281 r->http_connection = hc;
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282
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283 c->sent = 0;
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284 r->signature = NGX_HTTP_MODULE;
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285
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286 /* find the server configuration for the address:port */
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287
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288 /* AF_INET only */
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289
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190
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290 hip = c->listening->servers;
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142
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291 hia = hip->addrs;
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292
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293 r->port = hip->port;
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294 r->port_text = &hip->port_text;
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0
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295
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296 i = 0;
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297
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142
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298 if (hip->naddrs > 1) {
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0
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299
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300 /*
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301 * There are several addresses on this port and one of them
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302 * is the "*:port" wildcard so getsockname() is needed to determine
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303 * the server address.
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304 *
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305 * AcceptEx() already gave this address.
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306 */
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307
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10
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308 #if (NGX_WIN32)
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0
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309 if (c->local_sockaddr) {
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310 r->in_addr =
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311 ((struct sockaddr_in *) c->local_sockaddr)->sin_addr.s_addr;
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312
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28
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313 } else
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0
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314 #endif
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28
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315 {
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0
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316 len = sizeof(struct sockaddr_in);
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28
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317 if (getsockname(c->fd, (struct sockaddr *) &sin, &len) == -1) {
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0
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318 ngx_connection_error(c, ngx_socket_errno,
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319 "getsockname() failed");
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320 ngx_http_close_connection(c);
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321 return;
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322 }
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323
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28
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324 r->in_addr = sin.sin_addr.s_addr;
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0
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325 }
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326
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190
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327 /* the last address is "*" */
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0
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328
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142
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329 for ( /* void */ ; i < hip->naddrs - 1; i++) {
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330 if (hia[i].addr == r->in_addr) {
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0
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331 break;
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332 }
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333 }
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334
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335 } else {
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142
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336 r->in_addr = hia[0].addr;
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0
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337 }
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338
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142
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339 r->virtual_names = hia[i].virtual_names;
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0
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340
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341 /* the default server configuration for the address:port */
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142
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342 cscf = hia[i].core_srv_conf;
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0
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343
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344 r->main_conf = cscf->ctx->main_conf;
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345 r->srv_conf = cscf->ctx->srv_conf;
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346 r->loc_conf = cscf->ctx->loc_conf;
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347
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142
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348 r->server_name = cscf->server_name;
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349
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58
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350 rev->handler = ngx_http_process_request_line;
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0
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351
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352 #if (NGX_HTTP_SSL)
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353
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356
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354 {
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355 ngx_http_ssl_srv_conf_t *sscf;
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356
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0
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357 sscf = ngx_http_get_module_srv_conf(r, ngx_http_ssl_module);
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358 if (sscf->enable) {
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359
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360 if (c->ssl == NULL) {
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96
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361 if (ngx_ssl_create_connection(&sscf->ssl, c, NGX_SSL_BUFFER)
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56
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362 == NGX_ERROR)
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0
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363 {
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364 ngx_http_close_connection(c);
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365 return;
|
|
|
366 }
|
|
|
367
|
|
58
|
368 rev->handler = ngx_http_ssl_handshake;
|
|
0
|
369 }
|
|
|
370
|
|
62
|
371 r->main_filter_need_in_memory = 1;
|
|
0
|
372 }
|
|
356
|
373 }
|
|
0
|
374
|
|
|
375 #endif
|
|
|
376
|
|
|
377 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
378 c->log->file = clcf->err_log->file;
|
|
|
379 if (!(c->log->log_level & NGX_LOG_DEBUG_CONNECTION)) {
|
|
|
380 c->log->log_level = clcf->err_log->log_level;
|
|
|
381 }
|
|
|
382
|
|
|
383 if (c->buffer == NULL) {
|
|
|
384 c->buffer = ngx_create_temp_buf(c->pool,
|
|
|
385 cscf->client_header_buffer_size);
|
|
|
386 if (c->buffer == NULL) {
|
|
|
387 ngx_http_close_connection(c);
|
|
|
388 return;
|
|
|
389 }
|
|
|
390 }
|
|
|
391
|
|
|
392 if (r->header_in == NULL) {
|
|
|
393 r->header_in = c->buffer;
|
|
|
394 }
|
|
|
395
|
|
50
|
396 r->pool = ngx_create_pool(cscf->request_pool_size, c->log);
|
|
|
397 if (r->pool == NULL) {
|
|
0
|
398 ngx_http_close_connection(c);
|
|
|
399 return;
|
|
|
400 }
|
|
|
401
|
|
|
402
|
|
|
403 if (ngx_list_init(&r->headers_out.headers, r->pool, 20,
|
|
130
|
404 sizeof(ngx_table_elt_t))
|
|
|
405 == NGX_ERROR)
|
|
0
|
406 {
|
|
|
407 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
408 return;
|
|
|
409 }
|
|
|
410
|
|
|
411 r->ctx = ngx_pcalloc(r->pool, sizeof(void *) * ngx_http_max_module);
|
|
|
412 if (r->ctx == NULL) {
|
|
|
413 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
414 return;
|
|
|
415 }
|
|
|
416
|
|
122
|
417 cmcf = ngx_http_get_module_main_conf(r, ngx_http_core_module);
|
|
|
418
|
|
|
419 r->variables = ngx_pcalloc(r->pool, cmcf->variables.nelts
|
|
|
420 * sizeof(ngx_http_variable_value_t));
|
|
|
421 if (r->variables == NULL) {
|
|
|
422 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
423 return;
|
|
|
424 }
|
|
|
425
|
|
0
|
426 c->single_connection = 1;
|
|
132
|
427 c->destroyed = 0;
|
|
|
428
|
|
0
|
429 r->connection = c;
|
|
|
430
|
|
102
|
431 r->main = r;
|
|
|
432
|
|
298
|
433 tp = ngx_timeofday();
|
|
|
434 r->start_sec = tp->sec;
|
|
|
435 r->start_msec = tp->msec;
|
|
46
|
436
|
|
180
|
437 r->method = NGX_HTTP_UNKNOWN;
|
|
|
438
|
|
0
|
439 r->headers_in.content_length_n = -1;
|
|
|
440 r->headers_in.keep_alive_n = -1;
|
|
|
441 r->headers_out.content_length_n = -1;
|
|
|
442 r->headers_out.last_modified_time = -1;
|
|
|
443
|
|
226
|
444 r->uri_changes = NGX_HTTP_MAX_URI_CHANGES + 1;
|
|
|
445 r->subrequests = NGX_HTTP_MAX_SUBREQUESTS + 1;
|
|
|
446
|
|
0
|
447 r->http_state = NGX_HTTP_READING_REQUEST_STATE;
|
|
|
448
|
|
54
|
449 ctx = c->log->data;
|
|
|
450 ctx->request = r;
|
|
214
|
451 ctx->current_request = r;
|
|
58
|
452 r->log_handler = ngx_http_log_error_handler;
|
|
54
|
453
|
|
0
|
454 #if (NGX_STAT_STUB)
|
|
110
|
455 ngx_atomic_fetch_add(ngx_stat_reading, 1);
|
|
26
|
456 r->stat_reading = 1;
|
|
110
|
457 ngx_atomic_fetch_add(ngx_stat_requests, 1);
|
|
0
|
458 #endif
|
|
|
459
|
|
58
|
460 rev->handler(rev);
|
|
0
|
461 }
|
|
|
462
|
|
|
463
|
|
|
464 #if (NGX_HTTP_SSL)
|
|
|
465
|
|
50
|
466 static void
|
|
|
467 ngx_http_ssl_handshake(ngx_event_t *rev)
|
|
0
|
468 {
|
|
10
|
469 u_char buf[1];
|
|
|
470 ssize_t n;
|
|
0
|
471 ngx_int_t rc;
|
|
|
472 ngx_connection_t *c;
|
|
|
473 ngx_http_request_t *r;
|
|
|
474
|
|
|
475 c = rev->data;
|
|
|
476 r = c->data;
|
|
|
477
|
|
|
478 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, rev->log, 0,
|
|
|
479 "http check ssl handshake");
|
|
|
480
|
|
|
481 if (rev->timedout) {
|
|
54
|
482 ngx_log_error(NGX_LOG_INFO, c->log, NGX_ETIMEDOUT, "client timed out");
|
|
|
483 c->timedout = 1;
|
|
|
484 ngx_http_close_request(r, NGX_HTTP_REQUEST_TIME_OUT);
|
|
0
|
485 return;
|
|
|
486 }
|
|
|
487
|
|
132
|
488 n = recv(c->fd, (char *) buf, 1, MSG_PEEK);
|
|
0
|
489
|
|
|
490 if (n == -1 && ngx_socket_errno == NGX_EAGAIN) {
|
|
|
491 return;
|
|
|
492 }
|
|
|
493
|
|
|
494 if (n == 1) {
|
|
|
495 if (buf[0] == 0x80 /* SSLv2 */ || buf[0] == 0x16 /* SSLv3/TLSv1 */) {
|
|
|
496 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, rev->log, 0,
|
|
10
|
497 "https ssl handshake: 0x%02Xd", buf[0]);
|
|
0
|
498
|
|
|
499 rc = ngx_ssl_handshake(c);
|
|
|
500
|
|
96
|
501 if (rc == NGX_AGAIN) {
|
|
|
502 c->ssl->handler = ngx_http_ssl_handshake_handler;
|
|
0
|
503 return;
|
|
|
504 }
|
|
|
505
|
|
96
|
506 ngx_http_ssl_handshake_handler(c);
|
|
|
507
|
|
|
508 return;
|
|
0
|
509
|
|
|
510 } else {
|
|
|
511 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, rev->log, 0,
|
|
|
512 "plain http");
|
|
|
513
|
|
|
514 r->plain_http = 1;
|
|
|
515 }
|
|
|
516 }
|
|
|
517
|
|
58
|
518 rev->handler = ngx_http_process_request_line;
|
|
0
|
519 ngx_http_process_request_line(rev);
|
|
|
520 }
|
|
|
521
|
|
96
|
522
|
|
|
523 static void
|
|
|
524 ngx_http_ssl_handshake_handler(ngx_connection_t *c)
|
|
|
525 {
|
|
|
526 ngx_http_request_t *r;
|
|
|
527
|
|
|
528 if (c->ssl->handshaked) {
|
|
|
529
|
|
|
530 /*
|
|
|
531 * The majority of browsers do not send the "close notify" alert.
|
|
|
532 * Among them are MSIE, old Mozilla, Netscape 4, Konqueror,
|
|
|
533 * and Links. And what is more, MSIE ignores the server's alert.
|
|
|
534 *
|
|
|
535 * Opera and recent Mozilla send the alert.
|
|
|
536 */
|
|
|
537
|
|
|
538 c->ssl->no_wait_shutdown = 1;
|
|
|
539
|
|
|
540 c->read->handler = ngx_http_process_request_line;
|
|
|
541 /* STUB: epoll edge */ c->write->handler = ngx_http_empty_handler;
|
|
|
542
|
|
|
543 ngx_http_process_request_line(c->read);
|
|
|
544
|
|
|
545 return;
|
|
|
546 }
|
|
|
547
|
|
|
548 r = c->data;
|
|
|
549
|
|
|
550 ngx_http_close_request(r, NGX_HTTP_BAD_REQUEST);
|
|
|
551
|
|
|
552 return;
|
|
|
553 }
|
|
|
554
|
|
306
|
555 #ifdef SSL_CTRL_SET_TLSEXT_HOSTNAME
|
|
|
556
|
|
|
557 int
|
|
|
558 ngx_http_ssl_servername(ngx_ssl_conn_t *ssl_conn, int *ad, void *arg)
|
|
|
559 {
|
|
|
560 u_char *p;
|
|
|
561 ngx_uint_t hash;
|
|
|
562 const char *servername;
|
|
|
563 ngx_connection_t *c;
|
|
|
564 ngx_http_request_t *r;
|
|
|
565 ngx_http_ssl_srv_conf_t *sscf;
|
|
|
566
|
|
|
567 servername = SSL_get_servername(ssl_conn, TLSEXT_NAMETYPE_host_name);
|
|
|
568
|
|
|
569 if (servername == NULL) {
|
|
|
570 return SSL_TLSEXT_ERR_NOACK;
|
|
|
571 }
|
|
|
572
|
|
|
573 c = ngx_ssl_get_connection(ssl_conn);
|
|
|
574
|
|
|
575 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
|
576 "SSL server name: \"%s\"", servername);
|
|
|
577
|
|
|
578 r = c->data;
|
|
|
579
|
|
|
580 if (r->virtual_names == NULL) {
|
|
|
581 return SSL_TLSEXT_ERR_NOACK;
|
|
|
582 }
|
|
|
583
|
|
|
584 /* it seems browsers send low case server name */
|
|
|
585
|
|
|
586 hash = 0;
|
|
|
587
|
|
|
588 for (p = (u_char *) servername; *p; p++) {
|
|
|
589 hash = ngx_hash(hash, *p);
|
|
|
590 }
|
|
|
591
|
|
|
592 ngx_http_find_virtual_server(r, (u_char *) servername,
|
|
|
593 p - (u_char *) servername, hash);
|
|
|
594
|
|
|
595 sscf = ngx_http_get_module_srv_conf(r, ngx_http_ssl_module);
|
|
|
596
|
|
|
597 SSL_set_SSL_CTX(ssl_conn, sscf->ssl.ctx);
|
|
|
598
|
|
|
599 return SSL_TLSEXT_ERR_OK;
|
|
|
600 }
|
|
|
601
|
|
|
602 #endif
|
|
96
|
603
|
|
0
|
604 #endif
|
|
|
605
|
|
|
606
|
|
50
|
607 static void
|
|
|
608 ngx_http_process_request_line(ngx_event_t *rev)
|
|
0
|
609 {
|
|
342
|
610 ssize_t n;
|
|
|
611 ngx_int_t rc, rv;
|
|
|
612 ngx_connection_t *c;
|
|
|
613 ngx_http_request_t *r;
|
|
|
614 ngx_http_core_srv_conf_t *cscf;
|
|
0
|
615
|
|
|
616 c = rev->data;
|
|
|
617 r = c->data;
|
|
|
618
|
|
|
619 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, rev->log, 0,
|
|
|
620 "http process request line");
|
|
|
621
|
|
|
622 if (rev->timedout) {
|
|
54
|
623 ngx_log_error(NGX_LOG_INFO, c->log, NGX_ETIMEDOUT, "client timed out");
|
|
|
624 c->timedout = 1;
|
|
|
625 ngx_http_close_request(r, NGX_HTTP_REQUEST_TIME_OUT);
|
|
0
|
626 return;
|
|
|
627 }
|
|
|
628
|
|
|
629 rc = NGX_AGAIN;
|
|
|
630
|
|
|
631 for ( ;; ) {
|
|
|
632
|
|
|
633 if (rc == NGX_AGAIN) {
|
|
|
634 n = ngx_http_read_request_header(r);
|
|
|
635
|
|
|
636 if (n == NGX_AGAIN || n == NGX_ERROR) {
|
|
|
637 return;
|
|
|
638 }
|
|
|
639 }
|
|
|
640
|
|
|
641 rc = ngx_http_parse_request_line(r, r->header_in);
|
|
|
642
|
|
|
643 if (rc == NGX_OK) {
|
|
|
644
|
|
|
645 /* the request line has been parsed successfully */
|
|
|
646
|
|
10
|
647 r->request_line.len = r->request_end - r->request_start;
|
|
|
648 r->request_line.data = r->request_start;
|
|
|
649
|
|
0
|
650
|
|
|
651 if (r->args_start) {
|
|
|
652 r->uri.len = r->args_start - 1 - r->uri_start;
|
|
|
653 } else {
|
|
|
654 r->uri.len = r->uri_end - r->uri_start;
|
|
|
655 }
|
|
|
656
|
|
18
|
657
|
|
2
|
658 if (r->complex_uri || r->quoted_uri) {
|
|
10
|
659
|
|
50
|
660 r->uri.data = ngx_palloc(r->pool, r->uri.len + 1);
|
|
|
661 if (r->uri.data == NULL) {
|
|
10
|
662 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
663 return;
|
|
|
664 }
|
|
|
665
|
|
342
|
666 cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
|
|
|
667
|
|
|
668 rc = ngx_http_parse_complex_uri(r, cscf->merge_slashes);
|
|
0
|
669
|
|
54
|
670 if (rc == NGX_HTTP_PARSE_INVALID_REQUEST) {
|
|
|
671 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
|
672 "client sent invalid request");
|
|
|
673 ngx_http_finalize_request(r, NGX_HTTP_BAD_REQUEST);
|
|
0
|
674 return;
|
|
|
675 }
|
|
|
676
|
|
|
677 } else {
|
|
10
|
678 r->uri.data = r->uri_start;
|
|
0
|
679 }
|
|
|
680
|
|
18
|
681
|
|
10
|
682 r->unparsed_uri.len = r->uri_end - r->uri_start;
|
|
|
683 r->unparsed_uri.data = r->uri_start;
|
|
|
684
|
|
0
|
685
|
|
58
|
686 r->method_name.len = r->method_end - r->request_start + 1;
|
|
|
687 r->method_name.data = r->request_line.data;
|
|
0
|
688
|
|
10
|
689
|
|
28
|
690 if (r->http_protocol.data) {
|
|
|
691 r->http_protocol.len = r->request_end - r->http_protocol.data;
|
|
|
692 }
|
|
|
693
|
|
|
694
|
|
0
|
695 if (r->uri_ext) {
|
|
|
696 if (r->args_start) {
|
|
|
697 r->exten.len = r->args_start - 1 - r->uri_ext;
|
|
|
698 } else {
|
|
|
699 r->exten.len = r->uri_end - r->uri_ext;
|
|
|
700 }
|
|
|
701
|
|
10
|
702 r->exten.data = r->uri_ext;
|
|
0
|
703 }
|
|
|
704
|
|
10
|
705
|
|
0
|
706 if (r->args_start && r->uri_end > r->args_start) {
|
|
|
707 r->args.len = r->uri_end - r->args_start;
|
|
10
|
708 r->args.data = r->args_start;
|
|
0
|
709 }
|
|
|
710
|
|
10
|
711
|
|
|
712 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
|
713 "http request line: \"%V\"", &r->request_line);
|
|
|
714
|
|
0
|
715 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
10
|
716 "http uri: \"%V\"", &r->uri);
|
|
0
|
717
|
|
|
718 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
10
|
719 "http args: \"%V\"", &r->args);
|
|
0
|
720
|
|
|
721 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
10
|
722 "http exten: \"%V\"", &r->exten);
|
|
|
723
|
|
0
|
724 if (r->http_version < NGX_HTTP_VERSION_10) {
|
|
308
|
725 ngx_http_process_request(r);
|
|
0
|
726 return;
|
|
|
727 }
|
|
|
728
|
|
|
729
|
|
|
730 if (ngx_list_init(&r->headers_in.headers, r->pool, 20,
|
|
130
|
731 sizeof(ngx_table_elt_t))
|
|
|
732 == NGX_ERROR)
|
|
0
|
733 {
|
|
|
734 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
735 return;
|
|
|
736 }
|
|
|
737
|
|
|
738
|
|
48
|
739 if (ngx_array_init(&r->headers_in.cookies, r->pool, 2,
|
|
130
|
740 sizeof(ngx_table_elt_t *))
|
|
|
741 == NGX_ERROR)
|
|
0
|
742 {
|
|
|
743 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
744 return;
|
|
|
745 }
|
|
|
746
|
|
32
|
747 c->log->action = "reading client request headers";
|
|
0
|
748
|
|
58
|
749 rev->handler = ngx_http_process_request_headers;
|
|
0
|
750 ngx_http_process_request_headers(rev);
|
|
|
751
|
|
|
752 return;
|
|
54
|
753 }
|
|
|
754
|
|
|
755 if (rc != NGX_AGAIN) {
|
|
0
|
756
|
|
|
757 /* there was error while a request line parsing */
|
|
|
758
|
|
54
|
759 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
|
760 ngx_http_client_errors[rc - NGX_HTTP_CLIENT_ERROR]);
|
|
|
761 ngx_http_finalize_request(r, NGX_HTTP_BAD_REQUEST);
|
|
0
|
762 return;
|
|
|
763 }
|
|
|
764
|
|
|
765 /* NGX_AGAIN: a request line parsing is still incomplete */
|
|
|
766
|
|
|
767 if (r->header_in->pos == r->header_in->end) {
|
|
|
768
|
|
|
769 rv = ngx_http_alloc_large_header_buffer(r, 1);
|
|
|
770
|
|
|
771 if (rv == NGX_ERROR) {
|
|
|
772 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
773 return;
|
|
|
774 }
|
|
|
775
|
|
|
776 if (rv == NGX_DECLINED) {
|
|
54
|
777 r->request_line.len = r->header_in->end - r->request_start;
|
|
|
778 r->request_line.data = r->request_start;
|
|
|
779
|
|
|
780 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
|
781 "client sent too long URI");
|
|
|
782 ngx_http_finalize_request(r, NGX_HTTP_REQUEST_URI_TOO_LARGE);
|
|
0
|
783 return;
|
|
|
784 }
|
|
|
785 }
|
|
|
786 }
|
|
|
787 }
|
|
|
788
|
|
|
789
|
|
50
|
790 static void
|
|
|
791 ngx_http_process_request_headers(ngx_event_t *rev)
|
|
0
|
792 {
|
|
56
|
793 ssize_t n;
|
|
|
794 ngx_int_t rc, rv;
|
|
|
795 ngx_str_t header;
|
|
198
|
796 ngx_uint_t i;
|
|
58
|
797 ngx_table_elt_t *h;
|
|
56
|
798 ngx_connection_t *c;
|
|
|
799 ngx_http_header_t *hh;
|
|
|
800 ngx_http_request_t *r;
|
|
60
|
801 ngx_http_core_srv_conf_t *cscf;
|
|
56
|
802 ngx_http_core_main_conf_t *cmcf;
|
|
0
|
803
|
|
|
804 c = rev->data;
|
|
|
805 r = c->data;
|
|
|
806
|
|
|
807 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, rev->log, 0,
|
|
|
808 "http process request header line");
|
|
|
809
|
|
|
810 if (rev->timedout) {
|
|
54
|
811 ngx_log_error(NGX_LOG_INFO, c->log, NGX_ETIMEDOUT, "client timed out");
|
|
|
812 c->timedout = 1;
|
|
|
813 ngx_http_close_request(r, NGX_HTTP_REQUEST_TIME_OUT);
|
|
0
|
814 return;
|
|
|
815 }
|
|
|
816
|
|
56
|
817 cmcf = ngx_http_get_module_main_conf(r, ngx_http_core_module);
|
|
60
|
818 cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
|
|
56
|
819
|
|
0
|
820 rc = NGX_AGAIN;
|
|
|
821
|
|
|
822 for ( ;; ) {
|
|
|
823
|
|
|
824 if (rc == NGX_AGAIN) {
|
|
|
825
|
|
|
826 if (r->header_in->pos == r->header_in->end) {
|
|
|
827
|
|
|
828 rv = ngx_http_alloc_large_header_buffer(r, 0);
|
|
|
829
|
|
|
830 if (rv == NGX_ERROR) {
|
|
|
831 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
832 return;
|
|
|
833 }
|
|
|
834
|
|
|
835 if (rv == NGX_DECLINED) {
|
|
54
|
836 header.len = r->header_in->end - r->header_name_start;
|
|
|
837 header.data = r->header_name_start;
|
|
80
|
838
|
|
|
839 if (header.len > NGX_MAX_ERROR_STR - 300) {
|
|
|
840 header.len = NGX_MAX_ERROR_STR - 300;
|
|
|
841 header.data[header.len++] = '.';
|
|
|
842 header.data[header.len++] = '.';
|
|
|
843 header.data[header.len++] = '.';
|
|
|
844 }
|
|
|
845
|
|
54
|
846 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
|
847 "client sent too long header line: \"%V\"",
|
|
|
848 &header);
|
|
330
|
849 ngx_http_finalize_request(r, NGX_HTTP_BAD_REQUEST);
|
|
0
|
850 return;
|
|
|
851 }
|
|
|
852 }
|
|
|
853
|
|
|
854 n = ngx_http_read_request_header(r);
|
|
|
855
|
|
|
856 if (n == NGX_AGAIN || n == NGX_ERROR) {
|
|
|
857 return;
|
|
|
858 }
|
|
|
859 }
|
|
|
860
|
|
|
861 rc = ngx_http_parse_header_line(r, r->header_in);
|
|
|
862
|
|
|
863 if (rc == NGX_OK) {
|
|
|
864
|
|
60
|
865 if (r->invalid_header && cscf->ignore_invalid_headers) {
|
|
52
|
866
|
|
|
867 /* there was error while a header line parsing */
|
|
|
868
|
|
|
869 header.len = r->header_end - r->header_name_start;
|
|
|
870 header.data = r->header_name_start;
|
|
|
871
|
|
54
|
872 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
|
873 "client sent invalid header line: \"%V\"",
|
|
52
|
874 &header);
|
|
|
875 continue;
|
|
|
876 }
|
|
|
877
|
|
0
|
878 /* a header line has been parsed successfully */
|
|
|
879
|
|
50
|
880 h = ngx_list_push(&r->headers_in.headers);
|
|
|
881 if (h == NULL) {
|
|
0
|
882 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
883 return;
|
|
|
884 }
|
|
|
885
|
|
56
|
886 h->hash = r->header_hash;
|
|
|
887
|
|
0
|
888 h->key.len = r->header_name_end - r->header_name_start;
|
|
|
889 h->key.data = r->header_name_start;
|
|
|
890 h->key.data[h->key.len] = '\0';
|
|
|
891
|
|
|
892 h->value.len = r->header_end - r->header_start;
|
|
|
893 h->value.data = r->header_start;
|
|
|
894 h->value.data[h->value.len] = '\0';
|
|
|
895
|
|
198
|
896 h->lowcase_key = ngx_palloc(r->pool, h->key.len);
|
|
|
897 if (h->lowcase_key == NULL) {
|
|
|
898 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
899 return;
|
|
|
900 }
|
|
|
901
|
|
|
902 if (h->key.len == r->lowcase_index) {
|
|
|
903 ngx_memcpy(h->lowcase_key, r->lowcase_header, h->key.len);
|
|
|
904
|
|
|
905 } else {
|
|
|
906 for (i = 0; i < h->key.len; i++) {
|
|
216
|
907 h->lowcase_key[i] = ngx_tolower(h->key.data[i]);
|
|
0
|
908 }
|
|
|
909 }
|
|
|
910
|
|
198
|
911 hh = ngx_hash_find(&cmcf->headers_in_hash, h->hash,
|
|
|
912 h->lowcase_key, h->key.len);
|
|
|
913
|
|
|
914 if (hh && hh->handler(r, h, hh->offset) != NGX_OK) {
|
|
|
915 return;
|
|
|
916 }
|
|
|
917
|
|
0
|
918 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
10
|
919 "http header: \"%V: %V\"",
|
|
|
920 &h->key, &h->value);
|
|
0
|
921
|
|
|
922 continue;
|
|
54
|
923 }
|
|
|
924
|
|
|
925 if (rc == NGX_HTTP_PARSE_HEADER_DONE) {
|
|
0
|
926
|
|
|
927 /* a whole header has been parsed successfully */
|
|
|
928
|
|
|
929 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
930 "http header done");
|
|
|
931
|
|
24
|
932 r->request_length += r->header_in->pos - r->header_in->start;
|
|
|
933
|
|
0
|
934 r->http_state = NGX_HTTP_PROCESS_REQUEST_STATE;
|
|
|
935
|
|
|
936 rc = ngx_http_process_request_header(r);
|
|
|
937
|
|
|
938 if (rc != NGX_OK) {
|
|
|
939 return;
|
|
|
940 }
|
|
|
941
|
|
308
|
942 ngx_http_process_request(r);
|
|
86
|
943
|
|
0
|
944 return;
|
|
54
|
945 }
|
|
|
946
|
|
|
947 if (rc == NGX_AGAIN) {
|
|
|
948
|
|
|
949 /* a header line parsing is still not complete */
|
|
|
950
|
|
|
951 continue;
|
|
0
|
952 }
|
|
|
953
|
|
54
|
954 /* rc == NGX_HTTP_PARSE_INVALID_HEADER: "\r" is not followed by "\n" */
|
|
|
955
|
|
|
956 header.len = r->header_end - r->header_name_start;
|
|
|
957 header.data = r->header_name_start;
|
|
|
958 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
|
959 "client sent invalid header line: \"%V\\r...\"",
|
|
|
960 &header);
|
|
330
|
961 ngx_http_finalize_request(r, NGX_HTTP_BAD_REQUEST);
|
|
54
|
962 return;
|
|
0
|
963 }
|
|
|
964 }
|
|
|
965
|
|
|
966
|
|
50
|
967 static ssize_t
|
|
|
968 ngx_http_read_request_header(ngx_http_request_t *r)
|
|
0
|
969 {
|
|
|
970 ssize_t n;
|
|
|
971 ngx_event_t *rev;
|
|
230
|
972 ngx_connection_t *c;
|
|
0
|
973 ngx_http_core_srv_conf_t *cscf;
|
|
|
974
|
|
230
|
975 c = r->connection;
|
|
|
976 rev = c->read;
|
|
0
|
977
|
|
|
978 n = r->header_in->last - r->header_in->pos;
|
|
|
979
|
|
|
980 if (n > 0) {
|
|
|
981 return n;
|
|
|
982 }
|
|
|
983
|
|
72
|
984 if (rev->ready) {
|
|
230
|
985 n = c->recv(c, r->header_in->last,
|
|
|
986 r->header_in->end - r->header_in->last);
|
|
72
|
987 } else {
|
|
|
988 n = NGX_AGAIN;
|
|
0
|
989 }
|
|
|
990
|
|
|
991 if (n == NGX_AGAIN) {
|
|
|
992 if (!r->header_timeout_set) {
|
|
|
993 cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
|
|
|
994 ngx_add_timer(rev, cscf->client_header_timeout);
|
|
|
995 r->header_timeout_set = 1;
|
|
|
996 }
|
|
|
997
|
|
|
998 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) {
|
|
|
999 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
1000 return NGX_ERROR;
|
|
|
1001 }
|
|
|
1002
|
|
|
1003 return NGX_AGAIN;
|
|
|
1004 }
|
|
|
1005
|
|
|
1006 if (n == 0) {
|
|
230
|
1007 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
0
|
1008 "client closed prematurely connection");
|
|
|
1009 }
|
|
|
1010
|
|
|
1011 if (n == 0 || n == NGX_ERROR) {
|
|
272
|
1012 c->error = 1;
|
|
|
1013 c->log->action = "reading client request headers";
|
|
|
1014
|
|
|
1015 ngx_http_finalize_request(r, NGX_HTTP_BAD_REQUEST);
|
|
0
|
1016 return NGX_ERROR;
|
|
|
1017 }
|
|
|
1018
|
|
|
1019 r->header_in->last += n;
|
|
|
1020
|
|
|
1021 return n;
|
|
|
1022 }
|
|
|
1023
|
|
|
1024
|
|
50
|
1025 static ngx_int_t
|
|
|
1026 ngx_http_alloc_large_header_buffer(ngx_http_request_t *r,
|
|
|
1027 ngx_uint_t request_line)
|
|
0
|
1028 {
|
|
|
1029 u_char *old, *new;
|
|
|
1030 ngx_buf_t *b;
|
|
|
1031 ngx_http_connection_t *hc;
|
|
|
1032 ngx_http_core_srv_conf_t *cscf;
|
|
|
1033
|
|
|
1034 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1035 "http alloc large header buffer");
|
|
|
1036
|
|
|
1037 if (request_line && r->state == 0) {
|
|
|
1038
|
|
|
1039 /* the client fills up the buffer with "\r\n" */
|
|
|
1040
|
|
24
|
1041 r->request_length += r->header_in->end - r->header_in->start;
|
|
|
1042
|
|
0
|
1043 r->header_in->pos = r->header_in->start;
|
|
|
1044 r->header_in->last = r->header_in->start;
|
|
|
1045
|
|
|
1046 return NGX_OK;
|
|
|
1047 }
|
|
|
1048
|
|
|
1049 old = request_line ? r->request_start : r->header_name_start;
|
|
|
1050
|
|
|
1051 cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
|
|
|
1052
|
|
|
1053 if (r->state != 0
|
|
|
1054 && (size_t) (r->header_in->pos - old)
|
|
|
1055 >= cscf->large_client_header_buffers.size)
|
|
|
1056 {
|
|
|
1057 return NGX_DECLINED;
|
|
|
1058 }
|
|
|
1059
|
|
|
1060 hc = r->http_connection;
|
|
|
1061
|
|
|
1062 if (hc->nfree) {
|
|
|
1063 b = hc->free[--hc->nfree];
|
|
|
1064
|
|
|
1065 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
10
|
1066 "http large header free: %p %uz",
|
|
0
|
1067 b->pos, b->end - b->last);
|
|
|
1068
|
|
|
1069 } else if (hc->nbusy < cscf->large_client_header_buffers.num) {
|
|
|
1070
|
|
|
1071 if (hc->busy == NULL) {
|
|
|
1072 hc->busy = ngx_palloc(r->connection->pool,
|
|
|
1073 cscf->large_client_header_buffers.num * sizeof(ngx_buf_t *));
|
|
|
1074 if (hc->busy == NULL) {
|
|
|
1075 return NGX_ERROR;
|
|
|
1076 }
|
|
|
1077 }
|
|
|
1078
|
|
|
1079 b = ngx_create_temp_buf(r->connection->pool,
|
|
|
1080 cscf->large_client_header_buffers.size);
|
|
|
1081 if (b == NULL) {
|
|
|
1082 return NGX_ERROR;
|
|
|
1083 }
|
|
|
1084
|
|
|
1085 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
10
|
1086 "http large header alloc: %p %uz",
|
|
0
|
1087 b->pos, b->end - b->last);
|
|
|
1088
|
|
|
1089 } else {
|
|
|
1090 return NGX_DECLINED;
|
|
|
1091 }
|
|
|
1092
|
|
|
1093 hc->busy[hc->nbusy++] = b;
|
|
|
1094
|
|
|
1095 if (r->state == 0) {
|
|
|
1096 /*
|
|
|
1097 * r->state == 0 means that a header line was parsed successfully
|
|
|
1098 * and we do not need to copy incomplete header line and
|
|
|
1099 * to relocate the parser header pointers
|
|
|
1100 */
|
|
|
1101
|
|
24
|
1102 r->request_length += r->header_in->end - r->header_in->start;
|
|
|
1103
|
|
0
|
1104 r->header_in = b;
|
|
|
1105
|
|
|
1106 return NGX_OK;
|
|
|
1107 }
|
|
|
1108
|
|
|
1109 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1110 "http large header copy: %d", r->header_in->pos - old);
|
|
|
1111
|
|
24
|
1112 r->request_length += old - r->header_in->start;
|
|
|
1113
|
|
0
|
1114 new = b->start;
|
|
|
1115
|
|
|
1116 ngx_memcpy(new, old, r->header_in->pos - old);
|
|
|
1117
|
|
|
1118 b->pos = new + (r->header_in->pos - old);
|
|
|
1119 b->last = new + (r->header_in->pos - old);
|
|
|
1120
|
|
|
1121 if (request_line) {
|
|
|
1122 r->request_start = new;
|
|
|
1123
|
|
|
1124 if (r->request_end) {
|
|
|
1125 r->request_end = new + (r->request_end - old);
|
|
|
1126 }
|
|
|
1127
|
|
|
1128 r->method_end = new + (r->method_end - old);
|
|
|
1129
|
|
|
1130 r->uri_start = new + (r->uri_start - old);
|
|
|
1131 r->uri_end = new + (r->uri_end - old);
|
|
|
1132
|
|
|
1133 if (r->schema_start) {
|
|
|
1134 r->schema_start = new + (r->schema_start - old);
|
|
|
1135 r->schema_end = new + (r->schema_end - old);
|
|
|
1136 }
|
|
|
1137
|
|
|
1138 if (r->host_start) {
|
|
|
1139 r->host_start = new + (r->host_start - old);
|
|
270
|
1140 if (r->host_end) {
|
|
|
1141 r->host_end = new + (r->host_end - old);
|
|
|
1142 }
|
|
0
|
1143 }
|
|
|
1144
|
|
|
1145 if (r->port_start) {
|
|
|
1146 r->port_start = new + (r->port_start - old);
|
|
|
1147 r->port_end = new + (r->port_end - old);
|
|
|
1148 }
|
|
|
1149
|
|
|
1150 if (r->uri_ext) {
|
|
|
1151 r->uri_ext = new + (r->uri_ext - old);
|
|
|
1152 }
|
|
|
1153
|
|
|
1154 if (r->args_start) {
|
|
|
1155 r->args_start = new + (r->args_start - old);
|
|
|
1156 }
|
|
|
1157
|
|
354
|
1158 if (r->http_protocol.data) {
|
|
|
1159 r->http_protocol.data = new + (r->http_protocol.data - old);
|
|
|
1160 }
|
|
|
1161
|
|
0
|
1162 } else {
|
|
|
1163 r->header_name_start = new;
|
|
|
1164 r->header_name_end = new + (r->header_name_end - old);
|
|
|
1165 r->header_start = new + (r->header_start - old);
|
|
|
1166 r->header_end = new + (r->header_end - old);
|
|
|
1167 }
|
|
|
1168
|
|
|
1169 r->header_in = b;
|
|
|
1170
|
|
|
1171 return NGX_OK;
|
|
|
1172 }
|
|
|
1173
|
|
|
1174
|
|
50
|
1175 static ngx_int_t
|
|
58
|
1176 ngx_http_process_header_line(ngx_http_request_t *r, ngx_table_elt_t *h,
|
|
|
1177 ngx_uint_t offset)
|
|
|
1178 {
|
|
|
1179 ngx_table_elt_t **ph;
|
|
|
1180
|
|
|
1181 ph = (ngx_table_elt_t **) ((char *) &r->headers_in + offset);
|
|
|
1182
|
|
|
1183 if (*ph == NULL) {
|
|
|
1184 *ph = h;
|
|
|
1185 }
|
|
|
1186
|
|
|
1187 return NGX_OK;
|
|
|
1188 }
|
|
|
1189
|
|
|
1190
|
|
|
1191 static ngx_int_t
|
|
72
|
1192 ngx_http_process_unique_header_line(ngx_http_request_t *r, ngx_table_elt_t *h,
|
|
|
1193 ngx_uint_t offset)
|
|
|
1194 {
|
|
|
1195 ngx_table_elt_t **ph;
|
|
|
1196
|
|
|
1197 ph = (ngx_table_elt_t **) ((char *) &r->headers_in + offset);
|
|
|
1198
|
|
|
1199 if (*ph == NULL) {
|
|
|
1200 *ph = h;
|
|
|
1201 return NGX_OK;
|
|
|
1202 }
|
|
|
1203
|
|
|
1204 ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
|
|
230
|
1205 "client sent duplicate header line: \"%V: %V\", "
|
|
|
1206 "previous value: \"%V: %V\"",
|
|
|
1207 &h->key, &h->value, &(*ph)->key, &(*ph)->value);
|
|
72
|
1208
|
|
|
1209 ngx_http_finalize_request(r, NGX_HTTP_BAD_REQUEST);
|
|
|
1210
|
|
|
1211 return NGX_ERROR;
|
|
|
1212 }
|
|
|
1213
|
|
|
1214
|
|
|
1215 static ngx_int_t
|
|
336
|
1216 ngx_http_process_connection(ngx_http_request_t *r, ngx_table_elt_t *h,
|
|
|
1217 ngx_uint_t offset)
|
|
|
1218 {
|
|
340
|
1219 if (ngx_strcasestrn(h->value.data, "close", 5 - 1)) {
|
|
336
|
1220 r->headers_in.connection_type = NGX_HTTP_CONNECTION_CLOSE;
|
|
|
1221
|
|
340
|
1222 } else if (ngx_strcasestrn(h->value.data, "keep-alive", 10 - 1)) {
|
|
336
|
1223 r->headers_in.connection_type = NGX_HTTP_CONNECTION_KEEP_ALIVE;
|
|
|
1224 }
|
|
|
1225
|
|
|
1226 return NGX_OK;
|
|
|
1227 }
|
|
|
1228
|
|
|
1229
|
|
|
1230 static ngx_int_t
|
|
58
|
1231 ngx_http_process_cookie(ngx_http_request_t *r, ngx_table_elt_t *h,
|
|
|
1232 ngx_uint_t offset)
|
|
|
1233 {
|
|
|
1234 ngx_table_elt_t **cookie;
|
|
|
1235
|
|
|
1236 cookie = ngx_array_push(&r->headers_in.cookies);
|
|
72
|
1237 if (cookie) {
|
|
|
1238 *cookie = h;
|
|
|
1239 return NGX_OK;
|
|
58
|
1240 }
|
|
|
1241
|
|
72
|
1242 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
1243
|
|
|
1244 return NGX_ERROR;
|
|
58
|
1245 }
|
|
|
1246
|
|
|
1247
|
|
|
1248 static ngx_int_t
|
|
50
|
1249 ngx_http_process_request_header(ngx_http_request_t *r)
|
|
0
|
1250 {
|
|
308
|
1251 size_t len;
|
|
|
1252 u_char *host, *ua, *user_agent, ch;
|
|
|
1253 ngx_uint_t hash;
|
|
0
|
1254
|
|
|
1255 if (r->headers_in.host) {
|
|
198
|
1256
|
|
|
1257 hash = 0;
|
|
|
1258
|
|
0
|
1259 for (len = 0; len < r->headers_in.host->value.len; len++) {
|
|
26
|
1260 ch = r->headers_in.host->value.data[len];
|
|
|
1261
|
|
|
1262 if (ch == ':') {
|
|
0
|
1263 break;
|
|
|
1264 }
|
|
26
|
1265
|
|
198
|
1266 ch = ngx_tolower(ch);
|
|
|
1267 r->headers_in.host->value.data[len] = ch;
|
|
|
1268 hash = ngx_hash(hash, ch);
|
|
0
|
1269 }
|
|
54
|
1270
|
|
198
|
1271 if (len && r->headers_in.host->value.data[len - 1] == '.') {
|
|
58
|
1272 len--;
|
|
198
|
1273 hash = ngx_hash_key(r->headers_in.host->value.data, len);
|
|
58
|
1274 }
|
|
|
1275
|
|
0
|
1276 r->headers_in.host_name_len = len;
|
|
|
1277
|
|
198
|
1278 if (r->virtual_names) {
|
|
306
|
1279
|
|
|
1280 host = r->host_start;
|
|
|
1281
|
|
|
1282 if (host == NULL) {
|
|
|
1283 host = r->headers_in.host->value.data;
|
|
|
1284 len = r->headers_in.host_name_len;
|
|
|
1285
|
|
|
1286 } else {
|
|
|
1287 len = r->host_end - host;
|
|
|
1288 }
|
|
|
1289
|
|
|
1290 ngx_http_find_virtual_server(r, host, len, hash);
|
|
198
|
1291 }
|
|
0
|
1292
|
|
|
1293 } else {
|
|
|
1294 if (r->http_version > NGX_HTTP_VERSION_10) {
|
|
54
|
1295 ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
|
|
|
1296 "client sent HTTP/1.1 request without \"Host\" header");
|
|
|
1297 ngx_http_finalize_request(r, NGX_HTTP_BAD_REQUEST);
|
|
|
1298 return NGX_ERROR;
|
|
0
|
1299 }
|
|
54
|
1300
|
|
0
|
1301 r->headers_in.host_name_len = 0;
|
|
|
1302 }
|
|
|
1303
|
|
|
1304 if (r->headers_in.content_length) {
|
|
|
1305 r->headers_in.content_length_n =
|
|
212
|
1306 ngx_atoof(r->headers_in.content_length->value.data,
|
|
0
|
1307 r->headers_in.content_length->value.len);
|
|
|
1308
|
|
|
1309 if (r->headers_in.content_length_n == NGX_ERROR) {
|
|
54
|
1310 ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
|
|
|
1311 "client sent invalid \"Content-Length\" header");
|
|
130
|
1312 ngx_http_finalize_request(r, NGX_HTTP_LENGTH_REQUIRED);
|
|
54
|
1313 return NGX_ERROR;
|
|
0
|
1314 }
|
|
|
1315 }
|
|
|
1316
|
|
188
|
1317 if (r->method & (NGX_HTTP_POST|NGX_HTTP_PUT)
|
|
|
1318 && r->headers_in.content_length_n == -1)
|
|
|
1319 {
|
|
54
|
1320 ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
|
|
|
1321 "client sent POST method without \"Content-Length\" header");
|
|
130
|
1322 ngx_http_finalize_request(r, NGX_HTTP_LENGTH_REQUIRED);
|
|
|
1323 return NGX_ERROR;
|
|
|
1324 }
|
|
|
1325
|
|
336
|
1326 if (r->method & NGX_HTTP_TRACE) {
|
|
294
|
1327 ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
|
|
|
1328 "client sent TRACE method");
|
|
|
1329 ngx_http_finalize_request(r, NGX_HTTP_NOT_ALLOWED);
|
|
|
1330 return NGX_ERROR;
|
|
|
1331 }
|
|
|
1332
|
|
130
|
1333 if (r->headers_in.transfer_encoding
|
|
340
|
1334 && ngx_strcasestrn(r->headers_in.transfer_encoding->value.data,
|
|
|
1335 "chunked", 7 - 1))
|
|
130
|
1336 {
|
|
|
1337 ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
|
|
|
1338 "client sent \"Transfer-Encoding: chunked\" header");
|
|
|
1339 ngx_http_finalize_request(r, NGX_HTTP_LENGTH_REQUIRED);
|
|
54
|
1340 return NGX_ERROR;
|
|
0
|
1341 }
|
|
|
1342
|
|
336
|
1343 if (r->headers_in.connection_type == NGX_HTTP_CONNECTION_KEEP_ALIVE) {
|
|
|
1344 if (r->headers_in.keep_alive) {
|
|
|
1345 r->headers_in.keep_alive_n =
|
|
|
1346 ngx_atotm(r->headers_in.keep_alive->value.data,
|
|
|
1347 r->headers_in.keep_alive->value.len);
|
|
0
|
1348 }
|
|
|
1349 }
|
|
|
1350
|
|
|
1351 if (r->headers_in.user_agent) {
|
|
|
1352
|
|
|
1353 /*
|
|
|
1354 * check some widespread browsers while the headers are still
|
|
|
1355 * in CPU cache
|
|
|
1356 */
|
|
|
1357
|
|
|
1358 user_agent = r->headers_in.user_agent->value.data;
|
|
|
1359
|
|
340
|
1360 ua = ngx_strstrn(user_agent, "MSIE", 4 - 1);
|
|
0
|
1361
|
|
|
1362 if (ua && ua + 8 < user_agent + r->headers_in.user_agent->value.len) {
|
|
|
1363
|
|
|
1364 r->headers_in.msie = 1;
|
|
|
1365
|
|
|
1366 if (ua[4] == ' ' && ua[5] == '4' && ua[6] == '.') {
|
|
|
1367 r->headers_in.msie4 = 1;
|
|
|
1368 }
|
|
|
1369
|
|
|
1370 #if 0
|
|
|
1371 /* MSIE ignores the SSL "close notify" alert */
|
|
22
|
1372 if (c->ssl) {
|
|
96
|
1373 c->ssl->no_send_shutdown = 1;
|
|
22
|
1374 }
|
|
0
|
1375 #endif
|
|
|
1376 }
|
|
|
1377
|
|
340
|
1378 if (ngx_strstrn(user_agent, "Opera", 5 - 1)) {
|
|
0
|
1379 r->headers_in.opera = 1;
|
|
|
1380 r->headers_in.msie = 0;
|
|
|
1381 r->headers_in.msie4 = 0;
|
|
|
1382 }
|
|
|
1383
|
|
|
1384 if (!r->headers_in.msie && !r->headers_in.opera) {
|
|
|
1385
|
|
340
|
1386 if (ngx_strstrn(user_agent, "Gecko/", 6 - 1)) {
|
|
0
|
1387 r->headers_in.gecko = 1;
|
|
|
1388
|
|
340
|
1389 } else if (ngx_strstrn(user_agent, "Konqueror", 9 - 1)) {
|
|
0
|
1390 r->headers_in.konqueror = 1;
|
|
|
1391 }
|
|
|
1392 }
|
|
|
1393 }
|
|
|
1394
|
|
308
|
1395 return NGX_OK;
|
|
|
1396 }
|
|
|
1397
|
|
|
1398
|
|
|
1399 static void
|
|
|
1400 ngx_http_process_request(ngx_http_request_t *r)
|
|
|
1401 {
|
|
356
|
1402 ngx_connection_t *c;
|
|
308
|
1403
|
|
|
1404 c = r->connection;
|
|
|
1405
|
|
354
|
1406 if (r->plain_http) {
|
|
|
1407 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
|
1408 "client sent plain HTTP request to HTTPS port");
|
|
|
1409 ngx_http_finalize_request(r, NGX_HTTP_TO_HTTPS);
|
|
|
1410 return;
|
|
|
1411 }
|
|
|
1412
|
|
308
|
1413 #if (NGX_HTTP_SSL)
|
|
|
1414
|
|
|
1415 if (c->ssl) {
|
|
356
|
1416 long rc;
|
|
|
1417 ngx_http_ssl_srv_conf_t *sscf;
|
|
|
1418
|
|
218
|
1419 sscf = ngx_http_get_module_srv_conf(r, ngx_http_ssl_module);
|
|
|
1420
|
|
|
1421 if (sscf->verify) {
|
|
308
|
1422 rc = SSL_get_verify_result(c->ssl->connection);
|
|
218
|
1423
|
|
|
1424 if (rc != X509_V_OK) {
|
|
308
|
1425 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
220
|
1426 "client SSL certificate verify error: (%l:%s)",
|
|
218
|
1427 rc, X509_verify_cert_error_string(rc));
|
|
|
1428 ngx_http_finalize_request(r, NGX_HTTPS_CERT_ERROR);
|
|
308
|
1429 return;
|
|
218
|
1430 }
|
|
|
1431
|
|
308
|
1432 if (SSL_get_peer_certificate(c->ssl->connection)
|
|
218
|
1433 == NULL)
|
|
|
1434 {
|
|
308
|
1435 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
218
|
1436 "client sent no required SSL certificate");
|
|
|
1437 ngx_http_finalize_request(r, NGX_HTTPS_NO_CERT);
|
|
308
|
1438 return;
|
|
218
|
1439 }
|
|
|
1440 }
|
|
|
1441 }
|
|
|
1442
|
|
|
1443 #endif
|
|
|
1444
|
|
308
|
1445 if (c->read->timer_set) {
|
|
|
1446 ngx_del_timer(c->read);
|
|
|
1447 }
|
|
|
1448
|
|
|
1449 #if (NGX_STAT_STUB)
|
|
|
1450 ngx_atomic_fetch_add(ngx_stat_reading, -1);
|
|
|
1451 r->stat_reading = 0;
|
|
|
1452 ngx_atomic_fetch_add(ngx_stat_writing, 1);
|
|
|
1453 r->stat_writing = 1;
|
|
|
1454 #endif
|
|
|
1455
|
|
|
1456 c->read->handler = ngx_http_request_handler;
|
|
|
1457 c->write->handler = ngx_http_request_handler;
|
|
326
|
1458 r->read_event_handler = ngx_http_block_reading;
|
|
308
|
1459
|
|
|
1460 ngx_http_handler(r);
|
|
|
1461
|
|
|
1462 return;
|
|
0
|
1463 }
|
|
|
1464
|
|
|
1465
|
|
162
|
1466 static void
|
|
306
|
1467 ngx_http_find_virtual_server(ngx_http_request_t *r, u_char *host, size_t len,
|
|
|
1468 ngx_uint_t hash)
|
|
26
|
1469 {
|
|
142
|
1470 ngx_http_core_loc_conf_t *clcf;
|
|
|
1471 ngx_http_core_srv_conf_t *cscf;
|
|
326
|
1472
|
|
|
1473 cscf = ngx_hash_find_combined(&r->virtual_names->names, hash, host, len);
|
|
312
|
1474
|
|
|
1475 if (cscf) {
|
|
|
1476 goto found;
|
|
26
|
1477 }
|
|
|
1478
|
|
326
|
1479 #if (NGX_PCRE)
|
|
|
1480
|
|
|
1481 if (r->virtual_names->nregex) {
|
|
356
|
1482 ngx_int_t n;
|
|
|
1483 ngx_uint_t i;
|
|
|
1484 ngx_str_t name;
|
|
|
1485 ngx_http_server_name_t *sn;
|
|
326
|
1486
|
|
|
1487 name.len = len;
|
|
|
1488 name.data = host;
|
|
|
1489
|
|
|
1490 sn = r->virtual_names->regex;
|
|
|
1491
|
|
|
1492 for (i = 0; i < r->virtual_names->nregex; i++) {
|
|
|
1493
|
|
|
1494 n = ngx_regex_exec(sn[i].regex, &name, NULL, 0);
|
|
|
1495
|
|
|
1496 if (n == NGX_REGEX_NO_MATCHED) {
|
|
|
1497 continue;
|
|
|
1498 }
|
|
|
1499
|
|
|
1500 if (n < 0) {
|
|
|
1501 ngx_log_error(NGX_LOG_ALERT, r->connection->log, 0,
|
|
|
1502 ngx_regex_exec_n
|
|
|
1503 " failed: %d on \"%V\" using \"%V\"",
|
|
|
1504 n, &name, &sn[i].name);
|
|
|
1505 return;
|
|
|
1506 }
|
|
|
1507
|
|
|
1508 /* match */
|
|
|
1509
|
|
|
1510 cscf = sn[i].core_srv_conf;
|
|
|
1511
|
|
|
1512 goto found;
|
|
|
1513 }
|
|
|
1514 }
|
|
|
1515
|
|
|
1516 #endif
|
|
|
1517
|
|
212
|
1518 cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
|
|
|
1519
|
|
|
1520 if (cscf->wildcard) {
|
|
|
1521 r->server_name.len = len;
|
|
|
1522 r->server_name.data = host;
|
|
|
1523 }
|
|
|
1524
|
|
162
|
1525 return;
|
|
58
|
1526
|
|
|
1527 found:
|
|
|
1528
|
|
142
|
1529 r->server_name.len = len;
|
|
|
1530 r->server_name.data = host;
|
|
|
1531
|
|
|
1532 r->srv_conf = cscf->ctx->srv_conf;
|
|
|
1533 r->loc_conf = cscf->ctx->loc_conf;
|
|
58
|
1534
|
|
|
1535 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
1536 r->connection->log->file = clcf->err_log->file;
|
|
|
1537
|
|
|
1538 if (!(r->connection->log->log_level & NGX_LOG_DEBUG_CONNECTION)) {
|
|
|
1539 r->connection->log->log_level = clcf->err_log->log_level;
|
|
26
|
1540 }
|
|
|
1541
|
|
162
|
1542 return;
|
|
26
|
1543 }
|
|
|
1544
|
|
|
1545
|
|
58
|
1546 static void
|
|
|
1547 ngx_http_request_handler(ngx_event_t *ev)
|
|
|
1548 {
|
|
|
1549 ngx_connection_t *c;
|
|
|
1550 ngx_http_request_t *r;
|
|
214
|
1551 ngx_http_log_ctx_t *ctx;
|
|
58
|
1552
|
|
|
1553 c = ev->data;
|
|
|
1554 r = c->data;
|
|
|
1555
|
|
214
|
1556 ctx = c->log->data;
|
|
|
1557 ctx->current_request = r;
|
|
|
1558
|
|
58
|
1559 if (ev->write) {
|
|
|
1560 r->write_event_handler(r);
|
|
|
1561
|
|
|
1562 } else {
|
|
|
1563 r->read_event_handler(r);
|
|
|
1564 }
|
|
|
1565 }
|
|
|
1566
|
|
|
1567
|
|
50
|
1568 void
|
|
58
|
1569 ngx_http_finalize_request(ngx_http_request_t *r, ngx_int_t rc)
|
|
0
|
1570 {
|
|
330
|
1571 ngx_connection_t *c;
|
|
58
|
1572 ngx_http_request_t *pr;
|
|
214
|
1573 ngx_http_log_ctx_t *ctx;
|
|
0
|
1574 ngx_http_core_loc_conf_t *clcf;
|
|
|
1575
|
|
58
|
1576 if (rc == NGX_DONE) {
|
|
118
|
1577 /* the request pool may be already destroyed */
|
|
58
|
1578 return;
|
|
|
1579 }
|
|
|
1580
|
|
330
|
1581 c = r->connection;
|
|
|
1582
|
|
|
1583 ngx_log_debug3(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
132
|
1584 "http finalize request: %d, \"%V?%V\"",
|
|
|
1585 rc, &r->uri, &r->args);
|
|
|
1586
|
|
230
|
1587 if (rc == NGX_DECLINED) {
|
|
|
1588 r->content_handler = NULL;
|
|
|
1589 r->write_event_handler = ngx_http_core_run_phases;
|
|
|
1590 ngx_http_core_run_phases(r);
|
|
|
1591 return;
|
|
|
1592 }
|
|
|
1593
|
|
248
|
1594 if (r != r->main && r->post_subrequest) {
|
|
|
1595 rc = r->post_subrequest->handler(r, r->post_subrequest->data, rc);
|
|
216
|
1596 }
|
|
|
1597
|
|
330
|
1598 if (rc == NGX_ERROR || rc == NGX_HTTP_REQUEST_TIME_OUT || c->error) {
|
|
282
|
1599 if (rc > 0 && r->headers_out.status == 0) {
|
|
|
1600 r->headers_out.status = rc;
|
|
190
|
1601 }
|
|
|
1602
|
|
162
|
1603 if (ngx_http_post_action(r) == NGX_OK) {
|
|
|
1604 return;
|
|
|
1605 }
|
|
|
1606
|
|
118
|
1607 ngx_http_close_request(r, 0);
|
|
0
|
1608 return;
|
|
|
1609 }
|
|
|
1610
|
|
186
|
1611 if (rc >= NGX_HTTP_SPECIAL_RESPONSE
|
|
|
1612 || rc == NGX_HTTP_CREATED
|
|
|
1613 || rc == NGX_HTTP_NO_CONTENT)
|
|
|
1614 {
|
|
136
|
1615 if (rc == NGX_HTTP_CLOSE) {
|
|
|
1616 ngx_http_close_request(r, rc);
|
|
|
1617 return;
|
|
|
1618 }
|
|
|
1619
|
|
146
|
1620 if (r == r->main) {
|
|
330
|
1621 if (c->read->timer_set) {
|
|
|
1622 ngx_del_timer(c->read);
|
|
118
|
1623 }
|
|
|
1624
|
|
330
|
1625 if (c->write->timer_set) {
|
|
|
1626 ngx_del_timer(c->write);
|
|
118
|
1627 }
|
|
|
1628 }
|
|
|
1629
|
|
|
1630 ngx_http_finalize_request(r, ngx_http_special_response_handler(r, rc));
|
|
|
1631 return;
|
|
|
1632 }
|
|
|
1633
|
|
146
|
1634 if (r != r->main || rc == NGX_AGAIN) {
|
|
74
|
1635 if (ngx_http_set_write_handler(r) != NGX_OK) {
|
|
|
1636 return;
|
|
|
1637 }
|
|
58
|
1638 }
|
|
|
1639
|
|
|
1640 r->done = 1;
|
|
|
1641
|
|
330
|
1642 if (r != c->data) {
|
|
|
1643 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
132
|
1644 "http finalize non-active request: \"%V?%V\"",
|
|
|
1645 &r->uri, &r->args);
|
|
58
|
1646 return;
|
|
|
1647 }
|
|
|
1648
|
|
146
|
1649 if (r != r->main) {
|
|
58
|
1650
|
|
|
1651 pr = r->parent;
|
|
|
1652
|
|
330
|
1653 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
132
|
1654 "http parent request: \"%V?%V\"", &pr->uri, &pr->args);
|
|
76
|
1655
|
|
58
|
1656 if (rc != NGX_AGAIN) {
|
|
330
|
1657 c->data = pr;
|
|
58
|
1658 }
|
|
|
1659
|
|
330
|
1660 ctx = c->log->data;
|
|
214
|
1661 ctx->current_request = pr;
|
|
|
1662
|
|
58
|
1663 if (pr->postponed) {
|
|
|
1664
|
|
330
|
1665 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
132
|
1666 "http request: \"%V?%V\" has postponed",
|
|
|
1667 &pr->uri, &pr->args);
|
|
76
|
1668
|
|
58
|
1669 if (rc != NGX_AGAIN && pr->postponed->request == r) {
|
|
|
1670 pr->postponed = pr->postponed->next;
|
|
146
|
1671 }
|
|
|
1672
|
|
|
1673 if (r->fast_subrequest) {
|
|
194
|
1674
|
|
|
1675 if (rc == NGX_AGAIN) {
|
|
|
1676 r->fast_subrequest = 0;
|
|
|
1677 }
|
|
|
1678
|
|
330
|
1679 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
146
|
1680 "http fast subrequest: \"%V?%V\" done",
|
|
|
1681 &r->uri, &r->args);
|
|
|
1682 return;
|
|
58
|
1683 }
|
|
|
1684
|
|
194
|
1685 if (rc != NGX_AGAIN) {
|
|
330
|
1686 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
194
|
1687 "http wake parent request: \"%V?%V\"",
|
|
|
1688 &pr->uri, &pr->args);
|
|
|
1689
|
|
|
1690 pr->write_event_handler(pr);
|
|
|
1691 }
|
|
58
|
1692 }
|
|
|
1693
|
|
|
1694 return;
|
|
|
1695 }
|
|
0
|
1696
|
|
118
|
1697 if (rc == NGX_AGAIN) {
|
|
0
|
1698 return;
|
|
76
|
1699 }
|
|
|
1700
|
|
330
|
1701 if (c->buffered) {
|
|
74
|
1702 (void) ngx_http_set_write_handler(r);
|
|
0
|
1703 return;
|
|
|
1704 }
|
|
|
1705
|
|
178
|
1706 if (!r->post_action) {
|
|
|
1707 r->request_complete = 1;
|
|
|
1708 }
|
|
|
1709
|
|
162
|
1710 if (ngx_http_post_action(r) == NGX_OK) {
|
|
126
|
1711 return;
|
|
|
1712 }
|
|
|
1713
|
|
330
|
1714 if (c->read->timer_set) {
|
|
|
1715 ngx_del_timer(c->read);
|
|
|
1716 }
|
|
|
1717
|
|
|
1718 if (c->write->timer_set) {
|
|
|
1719 c->write->delayed = 0;
|
|
|
1720 ngx_del_timer(c->write);
|
|
0
|
1721 }
|
|
|
1722
|
|
330
|
1723 if (c->destroyed) {
|
|
|
1724 return;
|
|
0
|
1725 }
|
|
|
1726
|
|
330
|
1727 if (c->read->eof) {
|
|
|
1728 ngx_http_close_request(r, 0);
|
|
138
|
1729 return;
|
|
|
1730 }
|
|
|
1731
|
|
162
|
1732 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
0
|
1733
|
|
|
1734 if (!ngx_terminate
|
|
|
1735 && !ngx_exiting
|
|
|
1736 && r->keepalive != 0
|
|
|
1737 && clcf->keepalive_timeout > 0)
|
|
|
1738 {
|
|
|
1739 ngx_http_set_keepalive(r);
|
|
|
1740 return;
|
|
|
1741
|
|
|
1742 } else if (r->lingering_close && clcf->lingering_timeout > 0) {
|
|
|
1743 ngx_http_set_lingering_close(r);
|
|
|
1744 return;
|
|
|
1745 }
|
|
|
1746
|
|
|
1747 ngx_http_close_request(r, 0);
|
|
|
1748 }
|
|
|
1749
|
|
|
1750
|
|
74
|
1751 static ngx_int_t
|
|
50
|
1752 ngx_http_set_write_handler(ngx_http_request_t *r)
|
|
0
|
1753 {
|
|
|
1754 ngx_event_t *wev;
|
|
|
1755 ngx_http_core_loc_conf_t *clcf;
|
|
|
1756
|
|
58
|
1757 r->http_state = NGX_HTTP_WRITING_REQUEST_STATE;
|
|
|
1758
|
|
326
|
1759 r->read_event_handler = ngx_http_test_reading;
|
|
74
|
1760 r->write_event_handler = ngx_http_writer;
|
|
|
1761
|
|
0
|
1762 wev = r->connection->write;
|
|
|
1763
|
|
|
1764 if (wev->ready && wev->delayed) {
|
|
74
|
1765 return NGX_OK;
|
|
0
|
1766 }
|
|
|
1767
|
|
58
|
1768 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
0
|
1769 if (!wev->delayed) {
|
|
|
1770 ngx_add_timer(wev, clcf->send_timeout);
|
|
|
1771 }
|
|
|
1772
|
|
2
|
1773 if (ngx_handle_write_event(wev, clcf->send_lowat) == NGX_ERROR) {
|
|
0
|
1774 ngx_http_close_request(r, 0);
|
|
74
|
1775 return NGX_ERROR;
|
|
0
|
1776 }
|
|
74
|
1777
|
|
|
1778 return NGX_OK;
|
|
0
|
1779 }
|
|
|
1780
|
|
|
1781
|
|
58
|
1782 static void
|
|
|
1783 ngx_http_writer(ngx_http_request_t *r)
|
|
0
|
1784 {
|
|
|
1785 int rc;
|
|
58
|
1786 ngx_event_t *wev;
|
|
0
|
1787 ngx_connection_t *c;
|
|
|
1788 ngx_http_core_loc_conf_t *clcf;
|
|
|
1789
|
|
58
|
1790 c = r->connection;
|
|
|
1791 wev = c->write;
|
|
|
1792
|
|
132
|
1793 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, wev->log, 0,
|
|
|
1794 "http writer handler: \"%V?%V\"", &r->uri, &r->args);
|
|
0
|
1795
|
|
|
1796 if (wev->timedout) {
|
|
|
1797 if (!wev->delayed) {
|
|
54
|
1798 ngx_log_error(NGX_LOG_INFO, c->log, NGX_ETIMEDOUT,
|
|
|
1799 "client timed out");
|
|
|
1800 c->timedout = 1;
|
|
116
|
1801
|
|
162
|
1802 ngx_http_finalize_request(r, NGX_HTTP_REQUEST_TIME_OUT);
|
|
0
|
1803 return;
|
|
|
1804 }
|
|
|
1805
|
|
|
1806 wev->timedout = 0;
|
|
|
1807 wev->delayed = 0;
|
|
|
1808
|
|
|
1809 if (!wev->ready) {
|
|
102
|
1810 clcf = ngx_http_get_module_loc_conf(r->main, ngx_http_core_module);
|
|
0
|
1811 ngx_add_timer(wev, clcf->send_timeout);
|
|
|
1812
|
|
2
|
1813 if (ngx_handle_write_event(wev, clcf->send_lowat) == NGX_ERROR) {
|
|
118
|
1814 ngx_http_close_request(r, 0);
|
|
0
|
1815 }
|
|
|
1816
|
|
|
1817 return;
|
|
|
1818 }
|
|
|
1819
|
|
|
1820 } else {
|
|
|
1821 if (wev->delayed) {
|
|
|
1822 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, wev->log, 0,
|
|
|
1823 "http writer delayed");
|
|
|
1824
|
|
102
|
1825 clcf = ngx_http_get_module_loc_conf(r->main, ngx_http_core_module);
|
|
2
|
1826
|
|
|
1827 if (ngx_handle_write_event(wev, clcf->send_lowat) == NGX_ERROR) {
|
|
118
|
1828 ngx_http_close_request(r, 0);
|
|
0
|
1829 }
|
|
|
1830
|
|
|
1831 return;
|
|
|
1832 }
|
|
|
1833 }
|
|
|
1834
|
|
132
|
1835 rc = ngx_http_output_filter(r, NULL);
|
|
|
1836
|
|
|
1837 if (c->destroyed) {
|
|
|
1838 return;
|
|
58
|
1839 }
|
|
|
1840
|
|
132
|
1841 ngx_log_debug3(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
|
1842 "http writer output filter: %d, \"%V?%V\"",
|
|
|
1843 rc, &r->uri, &r->args);
|
|
0
|
1844
|
|
|
1845 if (rc == NGX_AGAIN) {
|
|
102
|
1846 clcf = ngx_http_get_module_loc_conf(r->main, ngx_http_core_module);
|
|
0
|
1847 if (!wev->ready && !wev->delayed) {
|
|
|
1848 ngx_add_timer(wev, clcf->send_timeout);
|
|
|
1849 }
|
|
|
1850
|
|
2
|
1851 if (ngx_handle_write_event(wev, clcf->send_lowat) == NGX_ERROR) {
|
|
118
|
1852 ngx_http_close_request(r, 0);
|
|
0
|
1853 }
|
|
|
1854
|
|
254
|
1855 if (r == r->main || r->buffered) {
|
|
146
|
1856 return;
|
|
|
1857 }
|
|
|
1858
|
|
|
1859 rc = NGX_OK;
|
|
0
|
1860 }
|
|
|
1861
|
|
132
|
1862 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, wev->log, 0,
|
|
|
1863 "http writer done: \"%V?%V\"", &r->uri, &r->args);
|
|
0
|
1864
|
|
|
1865 ngx_http_finalize_request(r, rc);
|
|
|
1866 }
|
|
|
1867
|
|
|
1868
|
|
326
|
1869 void
|
|
|
1870 ngx_http_block_reading(ngx_http_request_t *r)
|
|
0
|
1871 {
|
|
318
|
1872 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
326
|
1873 "http reading blocked");
|
|
318
|
1874
|
|
|
1875 /* aio does not call this handler */
|
|
|
1876
|
|
|
1877 if ((ngx_event_flags & NGX_USE_LEVEL_EVENT)
|
|
|
1878 && r->connection->read->active)
|
|
|
1879 {
|
|
|
1880 if (ngx_del_event(r->connection->read, NGX_READ_EVENT, 0)
|
|
|
1881 == NGX_ERROR)
|
|
|
1882 {
|
|
|
1883 ngx_http_close_request(r, 0);
|
|
|
1884 }
|
|
|
1885 }
|
|
|
1886 }
|
|
|
1887
|
|
|
1888
|
|
|
1889 static void
|
|
326
|
1890 ngx_http_test_reading(ngx_http_request_t *r)
|
|
318
|
1891 {
|
|
276
|
1892 int n;
|
|
|
1893 char buf[1];
|
|
|
1894 ngx_err_t err;
|
|
|
1895 ngx_event_t *rev;
|
|
|
1896 ngx_connection_t *c;
|
|
|
1897
|
|
|
1898 c = r->connection;
|
|
|
1899 rev = c->read;
|
|
|
1900
|
|
326
|
1901 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "http test reading");
|
|
276
|
1902
|
|
|
1903 #if (NGX_HAVE_KQUEUE)
|
|
|
1904
|
|
|
1905 if (ngx_event_flags & NGX_USE_KQUEUE_EVENT) {
|
|
|
1906
|
|
|
1907 if (!rev->pending_eof) {
|
|
|
1908 return;
|
|
|
1909 }
|
|
|
1910
|
|
|
1911 rev->eof = 1;
|
|
|
1912 c->error = 1;
|
|
|
1913 err = rev->kq_errno;
|
|
|
1914
|
|
|
1915 goto closed;
|
|
|
1916 }
|
|
|
1917
|
|
|
1918 #endif
|
|
|
1919
|
|
|
1920 n = recv(c->fd, buf, 1, MSG_PEEK);
|
|
|
1921
|
|
|
1922 if (n == 0) {
|
|
|
1923 rev->eof = 1;
|
|
|
1924 c->error = 1;
|
|
|
1925 err = 0;
|
|
|
1926
|
|
|
1927 goto closed;
|
|
|
1928
|
|
|
1929 } else if (n == -1) {
|
|
|
1930 err = ngx_socket_errno;
|
|
|
1931
|
|
|
1932 if (err != NGX_EAGAIN) {
|
|
|
1933 rev->eof = 1;
|
|
|
1934 c->error = 1;
|
|
|
1935
|
|
|
1936 goto closed;
|
|
|
1937 }
|
|
|
1938 }
|
|
0
|
1939
|
|
|
1940 /* aio does not call this handler */
|
|
|
1941
|
|
276
|
1942 if ((ngx_event_flags & NGX_USE_LEVEL_EVENT) && rev->active) {
|
|
|
1943
|
|
|
1944 if (ngx_del_event(rev, NGX_READ_EVENT, 0) == NGX_ERROR) {
|
|
0
|
1945 ngx_http_close_request(r, 0);
|
|
|
1946 }
|
|
|
1947 }
|
|
276
|
1948
|
|
|
1949 return;
|
|
|
1950
|
|
|
1951 closed:
|
|
|
1952
|
|
|
1953 if (err) {
|
|
|
1954 rev->error = 1;
|
|
|
1955 }
|
|
|
1956
|
|
|
1957 ngx_log_error(NGX_LOG_INFO, c->log, err,
|
|
|
1958 "client closed prematurely connection");
|
|
|
1959
|
|
286
|
1960 ngx_http_finalize_request(r, 0);
|
|
0
|
1961 }
|
|
|
1962
|
|
|
1963
|
|
50
|
1964 static void
|
|
|
1965 ngx_http_set_keepalive(ngx_http_request_t *r)
|
|
0
|
1966 {
|
|
2
|
1967 int tcp_nodelay;
|
|
0
|
1968 ngx_int_t i;
|
|
|
1969 ngx_buf_t *b, *f;
|
|
|
1970 ngx_event_t *rev, *wev;
|
|
|
1971 ngx_connection_t *c;
|
|
|
1972 ngx_http_connection_t *hc;
|
|
|
1973 ngx_http_core_srv_conf_t *cscf;
|
|
|
1974 ngx_http_core_loc_conf_t *clcf;
|
|
|
1975
|
|
|
1976 c = r->connection;
|
|
|
1977 rev = c->read;
|
|
|
1978
|
|
326
|
1979 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
1980
|
|
0
|
1981 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "set http keepalive handler");
|
|
|
1982
|
|
326
|
1983 if (r->discard_body) {
|
|
|
1984 r->lingering_time = ngx_time() + (time_t) (clcf->lingering_time / 1000);
|
|
|
1985 ngx_add_timer(rev, clcf->lingering_timeout);
|
|
|
1986 return;
|
|
|
1987 }
|
|
|
1988
|
|
32
|
1989 c->log->action = "closing request";
|
|
0
|
1990
|
|
|
1991 hc = r->http_connection;
|
|
|
1992 b = r->header_in;
|
|
|
1993
|
|
|
1994 if (b->pos < b->last) {
|
|
|
1995
|
|
|
1996 /* the pipelined request */
|
|
|
1997
|
|
|
1998 if (b != c->buffer) {
|
|
|
1999
|
|
4
|
2000 /*
|
|
|
2001 * If the large header buffers were allocated while the previous
|
|
|
2002 * request processing then we do not use c->buffer for
|
|
|
2003 * the pipelined request (see ngx_http_init_request()).
|
|
126
|
2004 *
|
|
4
|
2005 * Now we would move the large header buffers to the free list.
|
|
|
2006 */
|
|
0
|
2007
|
|
|
2008 cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
|
|
|
2009
|
|
|
2010 if (hc->free == NULL) {
|
|
|
2011 hc->free = ngx_palloc(c->pool,
|
|
|
2012 cscf->large_client_header_buffers.num * sizeof(ngx_buf_t *));
|
|
|
2013
|
|
|
2014 if (hc->free == NULL) {
|
|
26
|
2015 ngx_http_close_request(r, 0);
|
|
0
|
2016 return;
|
|
|
2017 }
|
|
|
2018 }
|
|
|
2019
|
|
|
2020 for (i = 0; i < hc->nbusy - 1; i++) {
|
|
|
2021 f = hc->busy[i];
|
|
|
2022 hc->free[hc->nfree++] = f;
|
|
|
2023 f->pos = f->start;
|
|
|
2024 f->last = f->start;
|
|
|
2025 }
|
|
|
2026
|
|
|
2027 hc->busy[0] = b;
|
|
|
2028 hc->nbusy = 1;
|
|
|
2029 }
|
|
|
2030 }
|
|
|
2031
|
|
118
|
2032 ngx_http_request_done(r, 0);
|
|
|
2033
|
|
0
|
2034 c->data = hc;
|
|
|
2035
|
|
|
2036 ngx_add_timer(rev, clcf->keepalive_timeout);
|
|
|
2037
|
|
58
|
2038 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) {
|
|
0
|
2039 ngx_http_close_connection(c);
|
|
|
2040 return;
|
|
|
2041 }
|
|
|
2042
|
|
|
2043 wev = c->write;
|
|
58
|
2044 wev->handler = ngx_http_empty_handler;
|
|
0
|
2045
|
|
|
2046 if (b->pos < b->last) {
|
|
|
2047
|
|
|
2048 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "pipelined request");
|
|
|
2049
|
|
116
|
2050 #if (NGX_STAT_STUB)
|
|
|
2051 ngx_atomic_fetch_add(ngx_stat_reading, 1);
|
|
|
2052 #endif
|
|
|
2053
|
|
0
|
2054 hc->pipeline = 1;
|
|
32
|
2055 c->log->action = "reading client pipelined request line";
|
|
116
|
2056
|
|
0
|
2057 ngx_http_init_request(rev);
|
|
|
2058 return;
|
|
|
2059 }
|
|
|
2060
|
|
|
2061 hc->pipeline = 0;
|
|
|
2062
|
|
4
|
2063 /*
|
|
|
2064 * To keep a memory footprint as small as possible for an idle
|
|
|
2065 * keepalive connection we try to free the ngx_http_request_t and
|
|
|
2066 * c->buffer's memory if they were allocated outside the c->pool.
|
|
|
2067 * The large header buffers are always allocated outside the c->pool and
|
|
|
2068 * are freed too.
|
|
|
2069 */
|
|
|
2070
|
|
0
|
2071 if (ngx_pfree(c->pool, r) == NGX_OK) {
|
|
|
2072 hc->request = NULL;
|
|
|
2073 }
|
|
|
2074
|
|
|
2075 b = c->buffer;
|
|
|
2076
|
|
|
2077 if (ngx_pfree(c->pool, b->start) == NGX_OK) {
|
|
4
|
2078
|
|
|
2079 /*
|
|
|
2080 * the special note for ngx_http_keepalive_handler() that
|
|
|
2081 * c->buffer's memory was freed
|
|
|
2082 */
|
|
|
2083
|
|
0
|
2084 b->pos = NULL;
|
|
|
2085
|
|
|
2086 } else {
|
|
|
2087 b->pos = b->start;
|
|
|
2088 b->last = b->start;
|
|
|
2089 }
|
|
|
2090
|
|
10
|
2091 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, c->log, 0, "hc free: %p %d",
|
|
0
|
2092 hc->free, hc->nfree);
|
|
|
2093
|
|
|
2094 if (hc->free) {
|
|
|
2095 for (i = 0; i < hc->nfree; i++) {
|
|
356
|
2096 ngx_pfree(c->pool, hc->free[i]->start);
|
|
0
|
2097 hc->free[i] = NULL;
|
|
|
2098 }
|
|
|
2099
|
|
|
2100 hc->nfree = 0;
|
|
|
2101 }
|
|
|
2102
|
|
10
|
2103 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, c->log, 0, "hc busy: %p %d",
|
|
0
|
2104 hc->busy, hc->nbusy);
|
|
|
2105
|
|
|
2106 if (hc->busy) {
|
|
|
2107 for (i = 0; i < hc->nbusy; i++) {
|
|
356
|
2108 ngx_pfree(c->pool, hc->busy[i]->start);
|
|
0
|
2109 hc->busy[i] = NULL;
|
|
|
2110 }
|
|
|
2111
|
|
|
2112 hc->nbusy = 0;
|
|
|
2113 }
|
|
|
2114
|
|
58
|
2115 rev->handler = ngx_http_keepalive_handler;
|
|
0
|
2116
|
|
132
|
2117 if (wev->active && (ngx_event_flags & NGX_USE_LEVEL_EVENT)) {
|
|
|
2118 if (ngx_del_event(wev, NGX_WRITE_EVENT, 0) == NGX_ERROR) {
|
|
|
2119 ngx_http_close_connection(c);
|
|
|
2120 return;
|
|
0
|
2121 }
|
|
|
2122 }
|
|
|
2123
|
|
32
|
2124 c->log->action = "keepalive";
|
|
0
|
2125
|
|
|
2126 if (c->tcp_nopush == NGX_TCP_NOPUSH_SET) {
|
|
50
|
2127 if (ngx_tcp_push(c->fd) == -1) {
|
|
0
|
2128 ngx_connection_error(c, ngx_socket_errno, ngx_tcp_push_n " failed");
|
|
|
2129 ngx_http_close_connection(c);
|
|
|
2130 return;
|
|
|
2131 }
|
|
2
|
2132
|
|
0
|
2133 c->tcp_nopush = NGX_TCP_NOPUSH_UNSET;
|
|
22
|
2134 tcp_nodelay = ngx_tcp_nodelay_and_tcp_nopush ? 1 : 0;
|
|
2
|
2135
|
|
|
2136 } else {
|
|
22
|
2137 tcp_nodelay = 1;
|
|
|
2138 }
|
|
|
2139
|
|
32
|
2140 if (tcp_nodelay
|
|
|
2141 && clcf->tcp_nodelay
|
|
|
2142 && c->tcp_nodelay == NGX_TCP_NODELAY_UNSET)
|
|
|
2143 {
|
|
22
|
2144 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "tcp_nodelay");
|
|
|
2145
|
|
|
2146 if (setsockopt(c->fd, IPPROTO_TCP, TCP_NODELAY,
|
|
184
|
2147 (const void *) &tcp_nodelay, sizeof(int))
|
|
|
2148 == -1)
|
|
22
|
2149 {
|
|
|
2150 ngx_connection_error(c, ngx_socket_errno,
|
|
|
2151 "setsockopt(TCP_NODELAY) failed");
|
|
|
2152 ngx_http_close_connection(c);
|
|
|
2153 return;
|
|
2
|
2154 }
|
|
22
|
2155
|
|
32
|
2156 c->tcp_nodelay = NGX_TCP_NODELAY_SET;
|
|
0
|
2157 }
|
|
|
2158
|
|
|
2159 #if 0
|
|
4
|
2160 /* if ngx_http_request_t was freed then we need some other place */
|
|
0
|
2161 r->http_state = NGX_HTTP_KEEPALIVE_STATE;
|
|
|
2162 #endif
|
|
|
2163
|
|
290
|
2164 c->idle = 1;
|
|
|
2165
|
|
0
|
2166 if (rev->ready) {
|
|
|
2167 ngx_http_keepalive_handler(rev);
|
|
|
2168 }
|
|
|
2169 }
|
|
|
2170
|
|
|
2171
|
|
50
|
2172 static void
|
|
|
2173 ngx_http_keepalive_handler(ngx_event_t *rev)
|
|
0
|
2174 {
|
|
50
|
2175 size_t size;
|
|
|
2176 ssize_t n;
|
|
|
2177 ngx_buf_t *b;
|
|
|
2178 ngx_connection_t *c;
|
|
0
|
2179
|
|
|
2180 c = rev->data;
|
|
|
2181
|
|
|
2182 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "http keepalive handler");
|
|
|
2183
|
|
290
|
2184 if (rev->timedout || c->close) {
|
|
0
|
2185 ngx_http_close_connection(c);
|
|
|
2186 return;
|
|
|
2187 }
|
|
|
2188
|
|
18
|
2189 #if (NGX_HAVE_KQUEUE)
|
|
0
|
2190
|
|
4
|
2191 if (ngx_event_flags & NGX_USE_KQUEUE_EVENT) {
|
|
136
|
2192 if (rev->pending_eof) {
|
|
32
|
2193 c->log->handler = NULL;
|
|
0
|
2194 ngx_log_error(NGX_LOG_INFO, c->log, rev->kq_errno,
|
|
10
|
2195 "kevent() reported that client %V closed "
|
|
32
|
2196 "keepalive connection", &c->addr_text);
|
|
22
|
2197 #if (NGX_HTTP_SSL)
|
|
|
2198 if (c->ssl) {
|
|
96
|
2199 c->ssl->no_send_shutdown = 1;
|
|
22
|
2200 }
|
|
|
2201 #endif
|
|
0
|
2202 ngx_http_close_connection(c);
|
|
|
2203 return;
|
|
|
2204 }
|
|
|
2205 }
|
|
|
2206
|
|
|
2207 #endif
|
|
|
2208
|
|
|
2209 b = c->buffer;
|
|
|
2210 size = b->end - b->start;
|
|
|
2211
|
|
|
2212 if (b->pos == NULL) {
|
|
4
|
2213
|
|
|
2214 /*
|
|
|
2215 * The c->buffer's memory was freed by ngx_http_set_keepalive().
|
|
|
2216 * However, the c->buffer->start and c->buffer->end were not changed
|
|
|
2217 * to keep the buffer size.
|
|
|
2218 */
|
|
|
2219
|
|
50
|
2220 b->pos = ngx_palloc(c->pool, size);
|
|
|
2221 if (b->pos == NULL) {
|
|
0
|
2222 ngx_http_close_connection(c);
|
|
|
2223 return;
|
|
|
2224 }
|
|
|
2225
|
|
|
2226 b->start = b->pos;
|
|
|
2227 b->last = b->pos;
|
|
|
2228 b->end = b->pos + size;
|
|
|
2229 }
|
|
|
2230
|
|
|
2231 /*
|
|
|
2232 * MSIE closes a keepalive connection with RST flag
|
|
|
2233 * so we ignore ECONNRESET here.
|
|
|
2234 */
|
|
|
2235
|
|
|
2236 c->log_error = NGX_ERROR_IGNORE_ECONNRESET;
|
|
|
2237 ngx_set_socket_errno(0);
|
|
|
2238
|
|
|
2239 n = c->recv(c, b->last, size);
|
|
|
2240 c->log_error = NGX_ERROR_INFO;
|
|
|
2241
|
|
|
2242 if (n == NGX_AGAIN) {
|
|
58
|
2243 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) {
|
|
24
|
2244 ngx_http_close_connection(c);
|
|
|
2245 }
|
|
|
2246
|
|
0
|
2247 return;
|
|
|
2248 }
|
|
|
2249
|
|
|
2250 if (n == NGX_ERROR) {
|
|
|
2251 ngx_http_close_connection(c);
|
|
|
2252 return;
|
|
|
2253 }
|
|
|
2254
|
|
32
|
2255 c->log->handler = NULL;
|
|
0
|
2256
|
|
|
2257 if (n == 0) {
|
|
|
2258 ngx_log_error(NGX_LOG_INFO, c->log, ngx_socket_errno,
|
|
32
|
2259 "client %V closed keepalive connection", &c->addr_text);
|
|
0
|
2260 ngx_http_close_connection(c);
|
|
|
2261 return;
|
|
|
2262 }
|
|
|
2263
|
|
|
2264 b->last += n;
|
|
32
|
2265
|
|
116
|
2266 #if (NGX_STAT_STUB)
|
|
|
2267 ngx_atomic_fetch_add(ngx_stat_reading, 1);
|
|
|
2268 #endif
|
|
|
2269
|
|
32
|
2270 c->log->handler = ngx_http_log_error;
|
|
|
2271 c->log->action = "reading client request line";
|
|
0
|
2272
|
|
290
|
2273 c->idle = 0;
|
|
|
2274
|
|
0
|
2275 ngx_http_init_request(rev);
|
|
|
2276 }
|
|
|
2277
|
|
|
2278
|
|
50
|
2279 static void
|
|
|
2280 ngx_http_set_lingering_close(ngx_http_request_t *r)
|
|
126
|
2281 {
|
|
0
|
2282 ngx_event_t *rev, *wev;
|
|
|
2283 ngx_connection_t *c;
|
|
|
2284 ngx_http_core_loc_conf_t *clcf;
|
|
|
2285
|
|
|
2286 c = r->connection;
|
|
|
2287
|
|
|
2288 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
2289
|
|
|
2290 rev = c->read;
|
|
58
|
2291 rev->handler = ngx_http_lingering_close_handler;
|
|
0
|
2292
|
|
106
|
2293 r->lingering_time = ngx_time() + (time_t) (clcf->lingering_time / 1000);
|
|
0
|
2294 ngx_add_timer(rev, clcf->lingering_timeout);
|
|
|
2295
|
|
58
|
2296 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) {
|
|
0
|
2297 ngx_http_close_request(r, 0);
|
|
|
2298 return;
|
|
|
2299 }
|
|
|
2300
|
|
|
2301 wev = c->write;
|
|
58
|
2302 wev->handler = ngx_http_empty_handler;
|
|
0
|
2303
|
|
132
|
2304 if (wev->active && (ngx_event_flags & NGX_USE_LEVEL_EVENT)) {
|
|
|
2305 if (ngx_del_event(wev, NGX_WRITE_EVENT, 0) == NGX_ERROR) {
|
|
|
2306 ngx_http_close_request(r, 0);
|
|
|
2307 return;
|
|
0
|
2308 }
|
|
|
2309 }
|
|
|
2310
|
|
|
2311 if (ngx_shutdown_socket(c->fd, NGX_WRITE_SHUTDOWN) == -1) {
|
|
|
2312 ngx_connection_error(c, ngx_socket_errno,
|
|
|
2313 ngx_shutdown_socket_n " failed");
|
|
|
2314 ngx_http_close_request(r, 0);
|
|
|
2315 return;
|
|
|
2316 }
|
|
|
2317
|
|
|
2318 if (rev->ready) {
|
|
|
2319 ngx_http_lingering_close_handler(rev);
|
|
|
2320 }
|
|
|
2321 }
|
|
|
2322
|
|
|
2323
|
|
50
|
2324 static void
|
|
|
2325 ngx_http_lingering_close_handler(ngx_event_t *rev)
|
|
0
|
2326 {
|
|
|
2327 ssize_t n;
|
|
|
2328 ngx_msec_t timer;
|
|
|
2329 ngx_connection_t *c;
|
|
|
2330 ngx_http_request_t *r;
|
|
|
2331 ngx_http_core_loc_conf_t *clcf;
|
|
|
2332 u_char buffer[NGX_HTTP_LINGERING_BUFFER_SIZE];
|
|
|
2333
|
|
|
2334 c = rev->data;
|
|
|
2335 r = c->data;
|
|
|
2336
|
|
|
2337 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
|
2338 "http lingering close handler");
|
|
|
2339
|
|
|
2340 if (rev->timedout) {
|
|
126
|
2341 c->timedout = 1;
|
|
0
|
2342 ngx_http_close_request(r, 0);
|
|
|
2343 return;
|
|
|
2344 }
|
|
|
2345
|
|
346
|
2346 timer = (ngx_msec_t) (r->lingering_time - ngx_time());
|
|
0
|
2347 if (timer <= 0) {
|
|
|
2348 ngx_http_close_request(r, 0);
|
|
|
2349 return;
|
|
|
2350 }
|
|
|
2351
|
|
|
2352 do {
|
|
|
2353 n = c->recv(c, buffer, NGX_HTTP_LINGERING_BUFFER_SIZE);
|
|
|
2354
|
|
|
2355 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0, "lingering read: %d", n);
|
|
|
2356
|
|
|
2357 if (n == NGX_ERROR || n == 0) {
|
|
|
2358 ngx_http_close_request(r, 0);
|
|
|
2359 return;
|
|
|
2360 }
|
|
|
2361
|
|
|
2362 } while (rev->ready);
|
|
|
2363
|
|
58
|
2364 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) {
|
|
26
|
2365 ngx_http_close_request(r, 0);
|
|
24
|
2366 return;
|
|
|
2367 }
|
|
|
2368
|
|
0
|
2369 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
2370
|
|
|
2371 timer *= 1000;
|
|
|
2372
|
|
|
2373 if (timer > clcf->lingering_timeout) {
|
|
|
2374 timer = clcf->lingering_timeout;
|
|
|
2375 }
|
|
|
2376
|
|
|
2377 ngx_add_timer(rev, timer);
|
|
|
2378 }
|
|
|
2379
|
|
|
2380
|
|
50
|
2381 void
|
|
|
2382 ngx_http_empty_handler(ngx_event_t *wev)
|
|
0
|
2383 {
|
|
|
2384 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, wev->log, 0, "http empty handler");
|
|
|
2385
|
|
|
2386 return;
|
|
|
2387 }
|
|
|
2388
|
|
|
2389
|
|
58
|
2390 void
|
|
|
2391 ngx_http_request_empty_handler(ngx_http_request_t *r)
|
|
|
2392 {
|
|
|
2393 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
132
|
2394 "http request empty handler");
|
|
58
|
2395
|
|
|
2396 return;
|
|
|
2397 }
|
|
|
2398
|
|
|
2399
|
|
50
|
2400 ngx_int_t
|
|
130
|
2401 ngx_http_send_special(ngx_http_request_t *r, ngx_uint_t flags)
|
|
0
|
2402 {
|
|
|
2403 ngx_buf_t *b;
|
|
|
2404 ngx_chain_t out;
|
|
|
2405
|
|
50
|
2406 b = ngx_calloc_buf(r->pool);
|
|
|
2407 if (b == NULL) {
|
|
0
|
2408 return NGX_ERROR;
|
|
|
2409 }
|
|
|
2410
|
|
130
|
2411 if (flags & NGX_HTTP_LAST) {
|
|
|
2412 b->last_buf = 1;
|
|
|
2413 }
|
|
|
2414
|
|
|
2415 if (flags & NGX_HTTP_FLUSH) {
|
|
|
2416 b->flush = 1;
|
|
|
2417 }
|
|
|
2418
|
|
0
|
2419 out.buf = b;
|
|
|
2420 out.next = NULL;
|
|
|
2421
|
|
|
2422 return ngx_http_output_filter(r, &out);
|
|
|
2423 }
|
|
|
2424
|
|
|
2425
|
|
162
|
2426 static ngx_int_t
|
|
|
2427 ngx_http_post_action(ngx_http_request_t *r)
|
|
|
2428 {
|
|
|
2429 ngx_http_core_loc_conf_t *clcf;
|
|
|
2430
|
|
|
2431 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
2432
|
|
|
2433 if (clcf->post_action.data == NULL) {
|
|
|
2434 return NGX_DECLINED;
|
|
|
2435 }
|
|
|
2436
|
|
172
|
2437 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
2438 "post action: \"%V\"", &clcf->post_action);
|
|
|
2439
|
|
162
|
2440 r->http_version = NGX_HTTP_VERSION_9;
|
|
|
2441 r->header_only = 1;
|
|
178
|
2442 r->post_action = 1;
|
|
162
|
2443
|
|
326
|
2444 r->read_event_handler = ngx_http_block_reading;
|
|
262
|
2445
|
|
162
|
2446 ngx_http_internal_redirect(r, &clcf->post_action, NULL);
|
|
|
2447
|
|
|
2448 return NGX_OK;
|
|
|
2449 }
|
|
|
2450
|
|
|
2451
|
|
|
2452 static void
|
|
58
|
2453 ngx_http_close_request(ngx_http_request_t *r, ngx_int_t error)
|
|
0
|
2454 {
|
|
188
|
2455 ngx_connection_t *c;
|
|
118
|
2456
|
|
|
2457 c = r->connection;
|
|
188
|
2458
|
|
|
2459 ngx_http_request_done(r->main, error);
|
|
118
|
2460 ngx_http_close_connection(c);
|
|
|
2461 }
|
|
|
2462
|
|
|
2463
|
|
162
|
2464 static void
|
|
118
|
2465 ngx_http_request_done(ngx_http_request_t *r, ngx_int_t error)
|
|
|
2466 {
|
|
|
2467 ngx_log_t *log;
|
|
130
|
2468 ngx_uint_t i, n;
|
|
118
|
2469 struct linger linger;
|
|
188
|
2470 ngx_http_cleanup_t *cln;
|
|
118
|
2471 ngx_http_log_ctx_t *ctx;
|
|
130
|
2472 ngx_http_handler_pt *log_handler;
|
|
118
|
2473 ngx_http_core_loc_conf_t *clcf;
|
|
|
2474 ngx_http_core_main_conf_t *cmcf;
|
|
0
|
2475
|
|
|
2476 log = r->connection->log;
|
|
|
2477
|
|
|
2478 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, log, 0, "http close request");
|
|
|
2479
|
|
|
2480 if (r->pool == NULL) {
|
|
80
|
2481 ngx_log_error(NGX_LOG_ALERT, log, 0, "http request already closed");
|
|
0
|
2482 return;
|
|
|
2483 }
|
|
|
2484
|
|
188
|
2485 for (cln = r->cleanup; cln; cln = cln->next) {
|
|
|
2486 if (cln->handler) {
|
|
|
2487 cln->handler(cln->data);
|
|
|
2488 }
|
|
|
2489 }
|
|
|
2490
|
|
0
|
2491 #if (NGX_STAT_STUB)
|
|
116
|
2492
|
|
0
|
2493 if (r->stat_reading) {
|
|
110
|
2494 ngx_atomic_fetch_add(ngx_stat_reading, -1);
|
|
0
|
2495 }
|
|
|
2496
|
|
|
2497 if (r->stat_writing) {
|
|
110
|
2498 ngx_atomic_fetch_add(ngx_stat_writing, -1);
|
|
0
|
2499 }
|
|
116
|
2500
|
|
0
|
2501 #endif
|
|
|
2502
|
|
|
2503 if (error && r->headers_out.status == 0) {
|
|
|
2504 r->headers_out.status = error;
|
|
|
2505 }
|
|
|
2506
|
|
118
|
2507 cmcf = ngx_http_get_module_main_conf(r, ngx_http_core_module);
|
|
|
2508
|
|
130
|
2509 log_handler = cmcf->phases[NGX_HTTP_LOG_PHASE].handlers.elts;
|
|
|
2510 n = cmcf->phases[NGX_HTTP_LOG_PHASE].handlers.nelts;
|
|
|
2511 for (i = 0; i < n; i++) {
|
|
|
2512 log_handler[i](r);
|
|
118
|
2513 }
|
|
0
|
2514
|
|
|
2515 if (r->connection->timedout) {
|
|
|
2516 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
2517
|
|
|
2518 if (clcf->reset_timedout_connection) {
|
|
58
|
2519 linger.l_onoff = 1;
|
|
|
2520 linger.l_linger = 0;
|
|
0
|
2521
|
|
|
2522 if (setsockopt(r->connection->fd, SOL_SOCKET, SO_LINGER,
|
|
58
|
2523 (const void *) &linger, sizeof(struct linger)) == -1)
|
|
0
|
2524 {
|
|
|
2525 ngx_log_error(NGX_LOG_ALERT, log, ngx_socket_errno,
|
|
|
2526 "setsockopt(SO_LINGER) failed");
|
|
|
2527 }
|
|
|
2528 }
|
|
|
2529 }
|
|
|
2530
|
|
58
|
2531 /* the various request strings were allocated from r->pool */
|
|
0
|
2532 ctx = log->data;
|
|
10
|
2533 ctx->request = NULL;
|
|
0
|
2534
|
|
|
2535 r->request_line.len = 0;
|
|
|
2536
|
|
132
|
2537 r->connection->destroyed = 1;
|
|
|
2538
|
|
0
|
2539 ngx_destroy_pool(r->pool);
|
|
|
2540 }
|
|
|
2541
|
|
|
2542
|
|
80
|
2543 static void
|
|
50
|
2544 ngx_http_close_connection(ngx_connection_t *c)
|
|
0
|
2545 {
|
|
28
|
2546 ngx_pool_t *pool;
|
|
|
2547
|
|
0
|
2548 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
|
2549 "close http connection: %d", c->fd);
|
|
|
2550
|
|
88
|
2551 #if (NGX_HTTP_SSL)
|
|
2
|
2552
|
|
|
2553 if (c->ssl) {
|
|
|
2554 if (ngx_ssl_shutdown(c) == NGX_AGAIN) {
|
|
126
|
2555 c->ssl->handler = ngx_http_close_connection;
|
|
2
|
2556 return;
|
|
|
2557 }
|
|
|
2558 }
|
|
|
2559
|
|
|
2560 #endif
|
|
|
2561
|
|
0
|
2562 #if (NGX_STAT_STUB)
|
|
110
|
2563 ngx_atomic_fetch_add(ngx_stat_active, -1);
|
|
0
|
2564 #endif
|
|
|
2565
|
|
132
|
2566 c->destroyed = 1;
|
|
|
2567
|
|
28
|
2568 pool = c->pool;
|
|
|
2569
|
|
0
|
2570 ngx_close_connection(c);
|
|
28
|
2571
|
|
50
|
2572 ngx_destroy_pool(pool);
|
|
0
|
2573 }
|
|
|
2574
|
|
|
2575
|
|
50
|
2576 static u_char *
|
|
|
2577 ngx_http_log_error(ngx_log_t *log, u_char *buf, size_t len)
|
|
0
|
2578 {
|
|
32
|
2579 u_char *p;
|
|
54
|
2580 ngx_http_request_t *r;
|
|
32
|
2581 ngx_http_log_ctx_t *ctx;
|
|
10
|
2582
|
|
32
|
2583 if (log->action) {
|
|
58
|
2584 p = ngx_snprintf(buf, len, " while %s", log->action);
|
|
10
|
2585 len -= p - buf;
|
|
54
|
2586 buf = p;
|
|
10
|
2587 }
|
|
|
2588
|
|
58
|
2589 ctx = log->data;
|
|
|
2590
|
|
54
|
2591 p = ngx_snprintf(buf, len, ", client: %V", ctx->client);
|
|
58
|
2592 len -= p - buf;
|
|
54
|
2593
|
|
|
2594 r = ctx->request;
|
|
|
2595
|
|
58
|
2596 if (r) {
|
|
214
|
2597 return r->log_handler(r, ctx->current_request, p, len);
|
|
0
|
2598 }
|
|
10
|
2599
|
|
58
|
2600 return p;
|
|
|
2601 }
|
|
|
2602
|
|
|
2603
|
|
|
2604 static u_char *
|
|
214
|
2605 ngx_http_log_error_handler(ngx_http_request_t *r, ngx_http_request_t *sr,
|
|
|
2606 u_char *buf, size_t len)
|
|
58
|
2607 {
|
|
260
|
2608 char *uri_separator;
|
|
|
2609 u_char *p;
|
|
|
2610 ngx_http_upstream_t *u;
|
|
54
|
2611
|
|
|
2612 if (r->server_name.data) {
|
|
|
2613 p = ngx_snprintf(buf, len, ", server: %V", &r->server_name);
|
|
52
|
2614 len -= p - buf;
|
|
54
|
2615 buf = p;
|
|
52
|
2616 }
|
|
|
2617
|
|
348
|
2618 if (r->request_line.data == NULL && r->request_start) {
|
|
|
2619 for (p = r->request_start; p < r->header_in->last; p++) {
|
|
|
2620 if (*p == CR || *p == LF) {
|
|
|
2621 break;
|
|
|
2622 }
|
|
|
2623 }
|
|
|
2624
|
|
|
2625 r->request_line.len = p - r->request_start;
|
|
|
2626 r->request_line.data = r->request_start;
|
|
|
2627 }
|
|
|
2628
|
|
|
2629 if (r->request_line.len) {
|
|
|
2630 p = ngx_snprintf(buf, len, ", request: \"%V\"", &r->request_line);
|
|
54
|
2631 len -= p - buf;
|
|
|
2632 buf = p;
|
|
10
|
2633 }
|
|
|
2634
|
|
214
|
2635 if (r != sr) {
|
|
|
2636 p = ngx_snprintf(buf, len, ", subrequest: \"%V\"", &sr->uri);
|
|
|
2637 len -= p - buf;
|
|
|
2638 buf = p;
|
|
|
2639 }
|
|
|
2640
|
|
|
2641 u = sr->upstream;
|
|
|
2642
|
|
260
|
2643 if (u && u->peer.name) {
|
|
|
2644
|
|
|
2645 uri_separator = "";
|
|
|
2646
|
|
|
2647 #if (NGX_HAVE_UNIX_DOMAIN)
|
|
|
2648 if (u->peer.sockaddr && u->peer.sockaddr->sa_family == AF_UNIX) {
|
|
|
2649 uri_separator = ":";
|
|
|
2650 }
|
|
|
2651 #endif
|
|
214
|
2652
|
|
|
2653 p = ngx_snprintf(buf, len, ", upstream: \"%V%V%s%V\"",
|
|
348
|
2654 &u->schema, u->peer.name,
|
|
260
|
2655 uri_separator, &u->uri);
|
|
214
|
2656 len -= p - buf;
|
|
|
2657 buf = p;
|
|
|
2658 }
|
|
|
2659
|
|
54
|
2660 if (r->headers_in.host) {
|
|
|
2661 p = ngx_snprintf(buf, len, ", host: \"%V\"",
|
|
|
2662 &r->headers_in.host->value);
|
|
|
2663 len -= p - buf;
|
|
|
2664 buf = p;
|
|
|
2665 }
|
|
|
2666
|
|
|
2667 if (r->headers_in.referer) {
|
|
|
2668 p = ngx_snprintf(buf, len, ", referrer: \"%V\"",
|
|
|
2669 &r->headers_in.referer->value);
|
|
|
2670 buf = p;
|
|
|
2671 }
|
|
|
2672
|
|
|
2673 return buf;
|
|
|
2674 }
|
