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