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0
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1
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2 /*
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3 * Copyright (C) Igor Sysoev
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4 */
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5
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6
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7 #include <ngx_config.h>
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8 #include <ngx_core.h>
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9 #include <ngx_event.h>
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10 #include <ngx_http.h>
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11
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12
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13 static void ngx_http_init_request(ngx_event_t *ev);
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14 static void ngx_http_process_request_line(ngx_event_t *rev);
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15 static void ngx_http_process_request_headers(ngx_event_t *rev);
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16 static ssize_t ngx_http_read_request_header(ngx_http_request_t *r);
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17 static ngx_int_t ngx_http_alloc_large_header_buffer(ngx_http_request_t *r,
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50
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18 ngx_uint_t request_line);
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58
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19
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20 static ngx_int_t ngx_http_process_header_line(ngx_http_request_t *r,
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21 ngx_table_elt_t *h, ngx_uint_t offset);
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72
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22 static ngx_int_t ngx_http_process_unique_header_line(ngx_http_request_t *r,
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23 ngx_table_elt_t *h, ngx_uint_t offset);
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336
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24 static ngx_int_t ngx_http_process_connection(ngx_http_request_t *r,
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25 ngx_table_elt_t *h, ngx_uint_t offset);
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58
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26 static ngx_int_t ngx_http_process_cookie(ngx_http_request_t *r,
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27 ngx_table_elt_t *h, ngx_uint_t offset);
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28
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0
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29 static ngx_int_t ngx_http_process_request_header(ngx_http_request_t *r);
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308
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30 static void ngx_http_process_request(ngx_http_request_t *r);
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306
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31 static void ngx_http_find_virtual_server(ngx_http_request_t *r, u_char *host,
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32 size_t len, ngx_uint_t hash);
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0
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33
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58
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34 static void ngx_http_request_handler(ngx_event_t *ev);
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74
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35 static ngx_int_t ngx_http_set_write_handler(ngx_http_request_t *r);
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58
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36 static void ngx_http_writer(ngx_http_request_t *r);
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37
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326
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38 static void ngx_http_test_reading(ngx_http_request_t *r);
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0
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39 static void ngx_http_set_keepalive(ngx_http_request_t *r);
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40 static void ngx_http_keepalive_handler(ngx_event_t *ev);
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41 static void ngx_http_set_lingering_close(ngx_http_request_t *r);
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42 static void ngx_http_lingering_close_handler(ngx_event_t *ev);
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162
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43 static ngx_int_t ngx_http_post_action(ngx_http_request_t *r);
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80
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44 static void ngx_http_close_request(ngx_http_request_t *r, ngx_int_t error);
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118
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45 static void ngx_http_request_done(ngx_http_request_t *r, ngx_int_t error);
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80
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46 static void ngx_http_close_connection(ngx_connection_t *c);
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0
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47
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32
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48 static u_char *ngx_http_log_error(ngx_log_t *log, u_char *buf, size_t len);
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214
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49 static u_char *ngx_http_log_error_handler(ngx_http_request_t *r,
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50 ngx_http_request_t *sr, u_char *buf, size_t len);
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0
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51
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88
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52 #if (NGX_HTTP_SSL)
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53 static void ngx_http_ssl_handshake(ngx_event_t *rev);
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96
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54 static void ngx_http_ssl_handshake_handler(ngx_connection_t *c);
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88
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55 #endif
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56
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0
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57
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54
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58 static char *ngx_http_client_errors[] = {
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59
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60 /* NGX_HTTP_PARSE_INVALID_METHOD */
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61 "client sent invalid method",
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62
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63 /* NGX_HTTP_PARSE_INVALID_REQUEST */
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64 "client sent invalid request",
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65
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66 /* NGX_HTTP_PARSE_INVALID_09_METHOD */
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67 "client sent invalid method in HTTP/0.9 request"
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0
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68 };
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69
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70
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71 ngx_http_header_t ngx_http_headers_in[] = {
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58
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72 { ngx_string("Host"), offsetof(ngx_http_headers_in_t, host),
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72
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73 ngx_http_process_unique_header_line },
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58
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74
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75 { ngx_string("Connection"), offsetof(ngx_http_headers_in_t, connection),
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336
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76 ngx_http_process_connection },
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58
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77
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0
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78 { ngx_string("If-Modified-Since"),
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58
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79 offsetof(ngx_http_headers_in_t, if_modified_since),
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332
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80 ngx_http_process_unique_header_line },
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58
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81
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82 { ngx_string("User-Agent"), offsetof(ngx_http_headers_in_t, user_agent),
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83 ngx_http_process_header_line },
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84
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85 { ngx_string("Referer"), offsetof(ngx_http_headers_in_t, referer),
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86 ngx_http_process_header_line },
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87
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0
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88 { ngx_string("Content-Length"),
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58
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89 offsetof(ngx_http_headers_in_t, content_length),
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72
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90 ngx_http_process_unique_header_line },
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58
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91
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28
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92 { ngx_string("Content-Type"),
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58
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93 offsetof(ngx_http_headers_in_t, content_type),
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94 ngx_http_process_header_line },
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95
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96 { ngx_string("Range"), offsetof(ngx_http_headers_in_t, range),
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97 ngx_http_process_header_line },
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98
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346
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99 { ngx_string("If-Range"),
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100 offsetof(ngx_http_headers_in_t, if_range),
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101 ngx_http_process_unique_header_line },
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102
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130
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103 { ngx_string("Transfer-Encoding"),
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104 offsetof(ngx_http_headers_in_t, transfer_encoding),
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105 ngx_http_process_header_line },
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106
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0
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107 #if (NGX_HTTP_GZIP)
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108 { ngx_string("Accept-Encoding"),
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58
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109 offsetof(ngx_http_headers_in_t, accept_encoding),
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110 ngx_http_process_header_line },
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111
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112 { ngx_string("Via"), offsetof(ngx_http_headers_in_t, via),
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113 ngx_http_process_header_line },
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0
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114 #endif
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115
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116 { ngx_string("Authorization"),
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58
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117 offsetof(ngx_http_headers_in_t, authorization),
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72
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118 ngx_http_process_unique_header_line },
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58
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119
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120 { ngx_string("Keep-Alive"), offsetof(ngx_http_headers_in_t, keep_alive),
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121 ngx_http_process_header_line },
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0
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122
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122
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123 #if (NGX_HTTP_PROXY || NGX_HTTP_REALIP)
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0
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124 { ngx_string("X-Forwarded-For"),
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58
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125 offsetof(ngx_http_headers_in_t, x_forwarded_for),
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126 ngx_http_process_header_line },
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0
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127 #endif
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28
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128
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122
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129 #if (NGX_HTTP_REALIP)
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130 { ngx_string("X-Real-IP"),
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131 offsetof(ngx_http_headers_in_t, x_real_ip),
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132 ngx_http_process_header_line },
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133 #endif
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134
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38
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135 #if (NGX_HTTP_HEADERS)
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58
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136 { ngx_string("Accept"), offsetof(ngx_http_headers_in_t, accept),
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137 ngx_http_process_header_line },
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138
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38
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139 { ngx_string("Accept-Language"),
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58
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140 offsetof(ngx_http_headers_in_t, accept_language),
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141 ngx_http_process_header_line },
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38
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142 #endif
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143
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186
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144 #if (NGX_HTTP_DAV)
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145 { ngx_string("Depth"), offsetof(ngx_http_headers_in_t, depth),
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146 ngx_http_process_header_line },
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147
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148 { ngx_string("Destination"), offsetof(ngx_http_headers_in_t, destination),
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149 ngx_http_process_header_line },
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230
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150
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276
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151 { ngx_string("Overwrite"), offsetof(ngx_http_headers_in_t, overwrite),
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152 ngx_http_process_header_line },
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153
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230
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154 { ngx_string("Date"), offsetof(ngx_http_headers_in_t, date),
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155 ngx_http_process_header_line },
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186
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156 #endif
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157
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58
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158 { ngx_string("Cookie"), 0, ngx_http_process_cookie },
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159
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160 { ngx_null_string, 0, NULL }
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0
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161 };
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162
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163
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50
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164 void
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165 ngx_http_init_connection(ngx_connection_t *c)
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0
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166 {
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167 ngx_event_t *rev;
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168 ngx_http_log_ctx_t *ctx;
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169
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50
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170 ctx = ngx_palloc(c->pool, sizeof(ngx_http_log_ctx_t));
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171 if (ctx == NULL) {
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0
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172 ngx_http_close_connection(c);
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173 return;
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174 }
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175
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10
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176 ctx->client = &c->addr_text;
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177 ctx->request = NULL;
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214
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178 ctx->current_request = NULL;
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32
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179
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180 c->log->connection = c->number;
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181 c->log->handler = ngx_http_log_error;
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0
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182 c->log->data = ctx;
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32
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183 c->log->action = "reading client request line";
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184
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0
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185 c->log_error = NGX_ERROR_INFO;
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186
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187 rev = c->read;
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58
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188 rev->handler = ngx_http_init_request;
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118
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189 c->write->handler = ngx_http_empty_handler;
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0
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190
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116
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191 #if (NGX_STAT_STUB)
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192 ngx_atomic_fetch_add(ngx_stat_reading, 1);
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193 #endif
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194
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0
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195 if (rev->ready) {
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196 /* the deferred accept(), rtsig, aio, iocp */
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197
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160
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198 if (ngx_use_accept_mutex) {
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112
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199 ngx_post_event(rev, &ngx_posted_events);
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0
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200 return;
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201 }
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202
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203 ngx_http_init_request(rev);
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204 return;
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205 }
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206
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207 ngx_add_timer(rev, c->listening->post_accept_timeout);
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208
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209 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) {
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116
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210 #if (NGX_STAT_STUB)
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211 ngx_atomic_fetch_add(ngx_stat_reading, -1);
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212 #endif
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0
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213 ngx_http_close_connection(c);
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214 return;
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215 }
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216 }
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217
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218
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190
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219 static void
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220 ngx_http_init_request(ngx_event_t *rev)
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0
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221 {
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298
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222 ngx_time_t *tp;
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190
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223 socklen_t len;
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122
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224 ngx_uint_t i;
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225 struct sockaddr_in sin;
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226 ngx_connection_t *c;
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227 ngx_http_request_t *r;
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142
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228 ngx_http_in_port_t *hip;
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229 ngx_http_in_addr_t *hia;
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122
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230 ngx_http_log_ctx_t *ctx;
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231 ngx_http_connection_t *hc;
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232 ngx_http_core_srv_conf_t *cscf;
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233 ngx_http_core_loc_conf_t *clcf;
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234 ngx_http_core_main_conf_t *cmcf;
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0
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235 #if (NGX_HTTP_SSL)
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122
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236 ngx_http_ssl_srv_conf_t *sscf;
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0
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237 #endif
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238
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116
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239 #if (NGX_STAT_STUB)
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240 ngx_atomic_fetch_add(ngx_stat_reading, -1);
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241 #endif
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242
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0
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243 c = rev->data;
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244
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245 if (rev->timedout) {
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246 ngx_log_error(NGX_LOG_INFO, c->log, NGX_ETIMEDOUT, "client timed out");
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247
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248 ngx_http_close_connection(c);
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249 return;
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250 }
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251
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252 hc = c->data;
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253
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116
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254 if (hc == NULL) {
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50
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255 hc = ngx_pcalloc(c->pool, sizeof(ngx_http_connection_t));
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256 if (hc == NULL) {
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0
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257 ngx_http_close_connection(c);
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258 return;
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259 }
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260 }
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261
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262 r = hc->request;
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263
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264 if (r) {
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265 ngx_memzero(r, sizeof(ngx_http_request_t));
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266
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267 r->pipeline = hc->pipeline;
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268
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269 if (hc->nbusy) {
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270 r->header_in = hc->busy[0];
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271 }
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272
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273 } else {
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50
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274 r = ngx_pcalloc(c->pool, sizeof(ngx_http_request_t));
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275 if (r == NULL) {
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0
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276 ngx_http_close_connection(c);
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277 return;
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278 }
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279
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280 hc->request = r;
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281 }
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282
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283 c->data = r;
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284 r->http_connection = hc;
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285
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286 c->sent = 0;
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287 r->signature = NGX_HTTP_MODULE;
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288
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289 /* find the server configuration for the address:port */
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290
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291 /* AF_INET only */
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292
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190
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293 hip = c->listening->servers;
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142
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294 hia = hip->addrs;
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295
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296 r->port = hip->port;
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297 r->port_text = &hip->port_text;
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0
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298
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299 i = 0;
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300
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142
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301 if (hip->naddrs > 1) {
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0
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302
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303 /*
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304 * There are several addresses on this port and one of them
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305 * is the "*:port" wildcard so getsockname() is needed to determine
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306 * the server address.
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307 *
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308 * AcceptEx() already gave this address.
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309 */
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310
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10
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311 #if (NGX_WIN32)
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0
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312 if (c->local_sockaddr) {
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313 r->in_addr =
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314 ((struct sockaddr_in *) c->local_sockaddr)->sin_addr.s_addr;
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315
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28
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316 } else
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0
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317 #endif
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28
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318 {
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0
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319 len = sizeof(struct sockaddr_in);
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28
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320 if (getsockname(c->fd, (struct sockaddr *) &sin, &len) == -1) {
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0
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321 ngx_connection_error(c, ngx_socket_errno,
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322 "getsockname() failed");
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323 ngx_http_close_connection(c);
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324 return;
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325 }
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326
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28
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327 r->in_addr = sin.sin_addr.s_addr;
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0
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328 }
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329
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190
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330 /* the last address is "*" */
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0
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331
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142
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332 for ( /* void */ ; i < hip->naddrs - 1; i++) {
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333 if (hia[i].addr == r->in_addr) {
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0
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334 break;
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335 }
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336 }
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337
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338 } else {
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142
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339 r->in_addr = hia[0].addr;
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0
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340 }
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341
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142
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342 r->virtual_names = hia[i].virtual_names;
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0
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343
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344 /* the default server configuration for the address:port */
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142
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345 cscf = hia[i].core_srv_conf;
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0
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346
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347 r->main_conf = cscf->ctx->main_conf;
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348 r->srv_conf = cscf->ctx->srv_conf;
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349 r->loc_conf = cscf->ctx->loc_conf;
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350
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142
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351 r->server_name = cscf->server_name;
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352
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58
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353 rev->handler = ngx_http_process_request_line;
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0
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354
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355 #if (NGX_HTTP_SSL)
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356
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357 sscf = ngx_http_get_module_srv_conf(r, ngx_http_ssl_module);
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358 if (sscf->enable) {
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359
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360 if (c->ssl == NULL) {
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96
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361 if (ngx_ssl_create_connection(&sscf->ssl, c, NGX_SSL_BUFFER)
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56
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362 == NGX_ERROR)
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0
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363 {
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364 ngx_http_close_connection(c);
|
|
|
365 return;
|
|
|
366 }
|
|
|
367
|
|
58
|
368 rev->handler = ngx_http_ssl_handshake;
|
|
0
|
369 }
|
|
|
370
|
|
62
|
371 r->main_filter_need_in_memory = 1;
|
|
0
|
372 }
|
|
|
373
|
|
|
374 #endif
|
|
|
375
|
|
|
376 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
377 c->log->file = clcf->err_log->file;
|
|
|
378 if (!(c->log->log_level & NGX_LOG_DEBUG_CONNECTION)) {
|
|
|
379 c->log->log_level = clcf->err_log->log_level;
|
|
|
380 }
|
|
|
381
|
|
|
382 if (c->buffer == NULL) {
|
|
|
383 c->buffer = ngx_create_temp_buf(c->pool,
|
|
|
384 cscf->client_header_buffer_size);
|
|
|
385 if (c->buffer == NULL) {
|
|
|
386 ngx_http_close_connection(c);
|
|
|
387 return;
|
|
|
388 }
|
|
|
389 }
|
|
|
390
|
|
|
391 if (r->header_in == NULL) {
|
|
|
392 r->header_in = c->buffer;
|
|
|
393 }
|
|
|
394
|
|
50
|
395 r->pool = ngx_create_pool(cscf->request_pool_size, c->log);
|
|
|
396 if (r->pool == NULL) {
|
|
0
|
397 ngx_http_close_connection(c);
|
|
|
398 return;
|
|
|
399 }
|
|
|
400
|
|
|
401
|
|
|
402 if (ngx_list_init(&r->headers_out.headers, r->pool, 20,
|
|
130
|
403 sizeof(ngx_table_elt_t))
|
|
|
404 == NGX_ERROR)
|
|
0
|
405 {
|
|
|
406 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
407 return;
|
|
|
408 }
|
|
|
409
|
|
|
410 r->ctx = ngx_pcalloc(r->pool, sizeof(void *) * ngx_http_max_module);
|
|
|
411 if (r->ctx == NULL) {
|
|
|
412 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
413 return;
|
|
|
414 }
|
|
|
415
|
|
122
|
416 cmcf = ngx_http_get_module_main_conf(r, ngx_http_core_module);
|
|
|
417
|
|
|
418 r->variables = ngx_pcalloc(r->pool, cmcf->variables.nelts
|
|
|
419 * sizeof(ngx_http_variable_value_t));
|
|
|
420 if (r->variables == NULL) {
|
|
|
421 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
422 return;
|
|
|
423 }
|
|
|
424
|
|
0
|
425 c->single_connection = 1;
|
|
132
|
426 c->destroyed = 0;
|
|
|
427
|
|
0
|
428 r->connection = c;
|
|
|
429
|
|
102
|
430 r->main = r;
|
|
|
431
|
|
298
|
432 tp = ngx_timeofday();
|
|
|
433 r->start_sec = tp->sec;
|
|
|
434 r->start_msec = tp->msec;
|
|
46
|
435
|
|
180
|
436 r->method = NGX_HTTP_UNKNOWN;
|
|
|
437
|
|
0
|
438 r->headers_in.content_length_n = -1;
|
|
|
439 r->headers_in.keep_alive_n = -1;
|
|
|
440 r->headers_out.content_length_n = -1;
|
|
|
441 r->headers_out.last_modified_time = -1;
|
|
|
442
|
|
226
|
443 r->uri_changes = NGX_HTTP_MAX_URI_CHANGES + 1;
|
|
|
444 r->subrequests = NGX_HTTP_MAX_SUBREQUESTS + 1;
|
|
|
445
|
|
0
|
446 r->http_state = NGX_HTTP_READING_REQUEST_STATE;
|
|
|
447
|
|
54
|
448 ctx = c->log->data;
|
|
|
449 ctx->request = r;
|
|
214
|
450 ctx->current_request = r;
|
|
58
|
451 r->log_handler = ngx_http_log_error_handler;
|
|
54
|
452
|
|
0
|
453 #if (NGX_STAT_STUB)
|
|
110
|
454 ngx_atomic_fetch_add(ngx_stat_reading, 1);
|
|
26
|
455 r->stat_reading = 1;
|
|
110
|
456 ngx_atomic_fetch_add(ngx_stat_requests, 1);
|
|
0
|
457 #endif
|
|
|
458
|
|
58
|
459 rev->handler(rev);
|
|
0
|
460 }
|
|
|
461
|
|
|
462
|
|
|
463 #if (NGX_HTTP_SSL)
|
|
|
464
|
|
50
|
465 static void
|
|
|
466 ngx_http_ssl_handshake(ngx_event_t *rev)
|
|
0
|
467 {
|
|
10
|
468 u_char buf[1];
|
|
|
469 ssize_t n;
|
|
0
|
470 ngx_int_t rc;
|
|
|
471 ngx_connection_t *c;
|
|
|
472 ngx_http_request_t *r;
|
|
|
473
|
|
|
474 c = rev->data;
|
|
|
475 r = c->data;
|
|
|
476
|
|
|
477 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, rev->log, 0,
|
|
|
478 "http check ssl handshake");
|
|
|
479
|
|
|
480 if (rev->timedout) {
|
|
54
|
481 ngx_log_error(NGX_LOG_INFO, c->log, NGX_ETIMEDOUT, "client timed out");
|
|
|
482 c->timedout = 1;
|
|
|
483 ngx_http_close_request(r, NGX_HTTP_REQUEST_TIME_OUT);
|
|
0
|
484 return;
|
|
|
485 }
|
|
|
486
|
|
132
|
487 n = recv(c->fd, (char *) buf, 1, MSG_PEEK);
|
|
0
|
488
|
|
|
489 if (n == -1 && ngx_socket_errno == NGX_EAGAIN) {
|
|
|
490 return;
|
|
|
491 }
|
|
|
492
|
|
|
493 if (n == 1) {
|
|
|
494 if (buf[0] == 0x80 /* SSLv2 */ || buf[0] == 0x16 /* SSLv3/TLSv1 */) {
|
|
|
495 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, rev->log, 0,
|
|
10
|
496 "https ssl handshake: 0x%02Xd", buf[0]);
|
|
0
|
497
|
|
|
498 rc = ngx_ssl_handshake(c);
|
|
|
499
|
|
96
|
500 if (rc == NGX_AGAIN) {
|
|
|
501 c->ssl->handler = ngx_http_ssl_handshake_handler;
|
|
0
|
502 return;
|
|
|
503 }
|
|
|
504
|
|
96
|
505 ngx_http_ssl_handshake_handler(c);
|
|
|
506
|
|
|
507 return;
|
|
0
|
508
|
|
|
509 } else {
|
|
|
510 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, rev->log, 0,
|
|
|
511 "plain http");
|
|
|
512
|
|
|
513 r->plain_http = 1;
|
|
|
514 }
|
|
|
515 }
|
|
|
516
|
|
58
|
517 rev->handler = ngx_http_process_request_line;
|
|
0
|
518 ngx_http_process_request_line(rev);
|
|
|
519 }
|
|
|
520
|
|
96
|
521
|
|
|
522 static void
|
|
|
523 ngx_http_ssl_handshake_handler(ngx_connection_t *c)
|
|
|
524 {
|
|
|
525 ngx_http_request_t *r;
|
|
|
526
|
|
|
527 if (c->ssl->handshaked) {
|
|
|
528
|
|
|
529 /*
|
|
|
530 * The majority of browsers do not send the "close notify" alert.
|
|
|
531 * Among them are MSIE, old Mozilla, Netscape 4, Konqueror,
|
|
|
532 * and Links. And what is more, MSIE ignores the server's alert.
|
|
|
533 *
|
|
|
534 * Opera and recent Mozilla send the alert.
|
|
|
535 */
|
|
|
536
|
|
|
537 c->ssl->no_wait_shutdown = 1;
|
|
|
538
|
|
|
539 c->read->handler = ngx_http_process_request_line;
|
|
|
540 /* STUB: epoll edge */ c->write->handler = ngx_http_empty_handler;
|
|
|
541
|
|
|
542 ngx_http_process_request_line(c->read);
|
|
|
543
|
|
|
544 return;
|
|
|
545 }
|
|
|
546
|
|
|
547 r = c->data;
|
|
|
548
|
|
|
549 ngx_http_close_request(r, NGX_HTTP_BAD_REQUEST);
|
|
|
550
|
|
|
551 return;
|
|
|
552 }
|
|
|
553
|
|
306
|
554 #ifdef SSL_CTRL_SET_TLSEXT_HOSTNAME
|
|
|
555
|
|
|
556 int
|
|
|
557 ngx_http_ssl_servername(ngx_ssl_conn_t *ssl_conn, int *ad, void *arg)
|
|
|
558 {
|
|
|
559 u_char *p;
|
|
|
560 ngx_uint_t hash;
|
|
|
561 const char *servername;
|
|
|
562 ngx_connection_t *c;
|
|
|
563 ngx_http_request_t *r;
|
|
|
564 ngx_http_ssl_srv_conf_t *sscf;
|
|
|
565
|
|
|
566 servername = SSL_get_servername(ssl_conn, TLSEXT_NAMETYPE_host_name);
|
|
|
567
|
|
|
568 if (servername == NULL) {
|
|
|
569 return SSL_TLSEXT_ERR_NOACK;
|
|
|
570 }
|
|
|
571
|
|
|
572 c = ngx_ssl_get_connection(ssl_conn);
|
|
|
573
|
|
|
574 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
|
575 "SSL server name: \"%s\"", servername);
|
|
|
576
|
|
|
577 r = c->data;
|
|
|
578
|
|
|
579 if (r->virtual_names == NULL) {
|
|
|
580 return SSL_TLSEXT_ERR_NOACK;
|
|
|
581 }
|
|
|
582
|
|
|
583 /* it seems browsers send low case server name */
|
|
|
584
|
|
|
585 hash = 0;
|
|
|
586
|
|
|
587 for (p = (u_char *) servername; *p; p++) {
|
|
|
588 hash = ngx_hash(hash, *p);
|
|
|
589 }
|
|
|
590
|
|
|
591 ngx_http_find_virtual_server(r, (u_char *) servername,
|
|
|
592 p - (u_char *) servername, hash);
|
|
|
593
|
|
|
594 sscf = ngx_http_get_module_srv_conf(r, ngx_http_ssl_module);
|
|
|
595
|
|
|
596 SSL_set_SSL_CTX(ssl_conn, sscf->ssl.ctx);
|
|
|
597
|
|
|
598 return SSL_TLSEXT_ERR_OK;
|
|
|
599 }
|
|
|
600
|
|
|
601 #endif
|
|
96
|
602
|
|
0
|
603 #endif
|
|
|
604
|
|
|
605
|
|
50
|
606 static void
|
|
|
607 ngx_http_process_request_line(ngx_event_t *rev)
|
|
0
|
608 {
|
|
342
|
609 ssize_t n;
|
|
|
610 ngx_int_t rc, rv;
|
|
|
611 ngx_connection_t *c;
|
|
|
612 ngx_http_request_t *r;
|
|
|
613 ngx_http_core_srv_conf_t *cscf;
|
|
0
|
614
|
|
|
615 c = rev->data;
|
|
|
616 r = c->data;
|
|
|
617
|
|
|
618 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, rev->log, 0,
|
|
|
619 "http process request line");
|
|
|
620
|
|
|
621 if (rev->timedout) {
|
|
54
|
622 ngx_log_error(NGX_LOG_INFO, c->log, NGX_ETIMEDOUT, "client timed out");
|
|
|
623 c->timedout = 1;
|
|
|
624 ngx_http_close_request(r, NGX_HTTP_REQUEST_TIME_OUT);
|
|
0
|
625 return;
|
|
|
626 }
|
|
|
627
|
|
|
628 rc = NGX_AGAIN;
|
|
|
629
|
|
|
630 for ( ;; ) {
|
|
|
631
|
|
|
632 if (rc == NGX_AGAIN) {
|
|
|
633 n = ngx_http_read_request_header(r);
|
|
|
634
|
|
|
635 if (n == NGX_AGAIN || n == NGX_ERROR) {
|
|
|
636 return;
|
|
|
637 }
|
|
|
638 }
|
|
|
639
|
|
|
640 rc = ngx_http_parse_request_line(r, r->header_in);
|
|
|
641
|
|
|
642 if (rc == NGX_OK) {
|
|
|
643
|
|
|
644 /* the request line has been parsed successfully */
|
|
|
645
|
|
10
|
646 r->request_line.len = r->request_end - r->request_start;
|
|
|
647 r->request_line.data = r->request_start;
|
|
|
648
|
|
0
|
649
|
|
|
650 if (r->args_start) {
|
|
|
651 r->uri.len = r->args_start - 1 - r->uri_start;
|
|
|
652 } else {
|
|
|
653 r->uri.len = r->uri_end - r->uri_start;
|
|
|
654 }
|
|
|
655
|
|
18
|
656
|
|
2
|
657 if (r->complex_uri || r->quoted_uri) {
|
|
10
|
658
|
|
50
|
659 r->uri.data = ngx_palloc(r->pool, r->uri.len + 1);
|
|
|
660 if (r->uri.data == NULL) {
|
|
10
|
661 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
662 return;
|
|
|
663 }
|
|
|
664
|
|
342
|
665 cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
|
|
|
666
|
|
|
667 rc = ngx_http_parse_complex_uri(r, cscf->merge_slashes);
|
|
0
|
668
|
|
54
|
669 if (rc == NGX_HTTP_PARSE_INVALID_REQUEST) {
|
|
|
670 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
|
671 "client sent invalid request");
|
|
|
672 ngx_http_finalize_request(r, NGX_HTTP_BAD_REQUEST);
|
|
0
|
673 return;
|
|
|
674 }
|
|
|
675
|
|
|
676 } else {
|
|
10
|
677 r->uri.data = r->uri_start;
|
|
0
|
678 }
|
|
|
679
|
|
18
|
680
|
|
10
|
681 r->unparsed_uri.len = r->uri_end - r->uri_start;
|
|
|
682 r->unparsed_uri.data = r->uri_start;
|
|
|
683
|
|
0
|
684
|
|
58
|
685 r->method_name.len = r->method_end - r->request_start + 1;
|
|
|
686 r->method_name.data = r->request_line.data;
|
|
0
|
687
|
|
10
|
688
|
|
28
|
689 if (r->http_protocol.data) {
|
|
|
690 r->http_protocol.len = r->request_end - r->http_protocol.data;
|
|
|
691 }
|
|
|
692
|
|
|
693
|
|
0
|
694 if (r->uri_ext) {
|
|
|
695 if (r->args_start) {
|
|
|
696 r->exten.len = r->args_start - 1 - r->uri_ext;
|
|
|
697 } else {
|
|
|
698 r->exten.len = r->uri_end - r->uri_ext;
|
|
|
699 }
|
|
|
700
|
|
10
|
701 r->exten.data = r->uri_ext;
|
|
0
|
702 }
|
|
|
703
|
|
10
|
704
|
|
0
|
705 if (r->args_start && r->uri_end > r->args_start) {
|
|
|
706 r->args.len = r->uri_end - r->args_start;
|
|
10
|
707 r->args.data = r->args_start;
|
|
0
|
708 }
|
|
|
709
|
|
10
|
710
|
|
|
711 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
|
712 "http request line: \"%V\"", &r->request_line);
|
|
|
713
|
|
0
|
714 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
10
|
715 "http uri: \"%V\"", &r->uri);
|
|
0
|
716
|
|
|
717 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
10
|
718 "http args: \"%V\"", &r->args);
|
|
0
|
719
|
|
|
720 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
10
|
721 "http exten: \"%V\"", &r->exten);
|
|
|
722
|
|
0
|
723 if (r->http_version < NGX_HTTP_VERSION_10) {
|
|
308
|
724 ngx_http_process_request(r);
|
|
0
|
725 return;
|
|
|
726 }
|
|
|
727
|
|
|
728
|
|
|
729 if (ngx_list_init(&r->headers_in.headers, r->pool, 20,
|
|
130
|
730 sizeof(ngx_table_elt_t))
|
|
|
731 == NGX_ERROR)
|
|
0
|
732 {
|
|
|
733 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
734 return;
|
|
|
735 }
|
|
|
736
|
|
|
737
|
|
48
|
738 if (ngx_array_init(&r->headers_in.cookies, r->pool, 2,
|
|
130
|
739 sizeof(ngx_table_elt_t *))
|
|
|
740 == NGX_ERROR)
|
|
0
|
741 {
|
|
|
742 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
743 return;
|
|
|
744 }
|
|
|
745
|
|
32
|
746 c->log->action = "reading client request headers";
|
|
0
|
747
|
|
58
|
748 rev->handler = ngx_http_process_request_headers;
|
|
0
|
749 ngx_http_process_request_headers(rev);
|
|
|
750
|
|
|
751 return;
|
|
54
|
752 }
|
|
|
753
|
|
|
754 if (rc != NGX_AGAIN) {
|
|
0
|
755
|
|
|
756 /* there was error while a request line parsing */
|
|
|
757
|
|
54
|
758 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
|
759 ngx_http_client_errors[rc - NGX_HTTP_CLIENT_ERROR]);
|
|
|
760 ngx_http_finalize_request(r, NGX_HTTP_BAD_REQUEST);
|
|
0
|
761 return;
|
|
|
762 }
|
|
|
763
|
|
|
764 /* NGX_AGAIN: a request line parsing is still incomplete */
|
|
|
765
|
|
|
766 if (r->header_in->pos == r->header_in->end) {
|
|
|
767
|
|
|
768 rv = ngx_http_alloc_large_header_buffer(r, 1);
|
|
|
769
|
|
|
770 if (rv == NGX_ERROR) {
|
|
|
771 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
772 return;
|
|
|
773 }
|
|
|
774
|
|
|
775 if (rv == NGX_DECLINED) {
|
|
54
|
776 r->request_line.len = r->header_in->end - r->request_start;
|
|
|
777 r->request_line.data = r->request_start;
|
|
|
778
|
|
|
779 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
|
780 "client sent too long URI");
|
|
|
781 ngx_http_finalize_request(r, NGX_HTTP_REQUEST_URI_TOO_LARGE);
|
|
0
|
782 return;
|
|
|
783 }
|
|
|
784 }
|
|
|
785 }
|
|
|
786 }
|
|
|
787
|
|
|
788
|
|
50
|
789 static void
|
|
|
790 ngx_http_process_request_headers(ngx_event_t *rev)
|
|
0
|
791 {
|
|
56
|
792 ssize_t n;
|
|
|
793 ngx_int_t rc, rv;
|
|
|
794 ngx_str_t header;
|
|
198
|
795 ngx_uint_t i;
|
|
58
|
796 ngx_table_elt_t *h;
|
|
56
|
797 ngx_connection_t *c;
|
|
|
798 ngx_http_header_t *hh;
|
|
|
799 ngx_http_request_t *r;
|
|
60
|
800 ngx_http_core_srv_conf_t *cscf;
|
|
56
|
801 ngx_http_core_main_conf_t *cmcf;
|
|
0
|
802
|
|
|
803 c = rev->data;
|
|
|
804 r = c->data;
|
|
|
805
|
|
|
806 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, rev->log, 0,
|
|
|
807 "http process request header line");
|
|
|
808
|
|
|
809 if (rev->timedout) {
|
|
54
|
810 ngx_log_error(NGX_LOG_INFO, c->log, NGX_ETIMEDOUT, "client timed out");
|
|
|
811 c->timedout = 1;
|
|
|
812 ngx_http_close_request(r, NGX_HTTP_REQUEST_TIME_OUT);
|
|
0
|
813 return;
|
|
|
814 }
|
|
|
815
|
|
56
|
816 cmcf = ngx_http_get_module_main_conf(r, ngx_http_core_module);
|
|
60
|
817 cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
|
|
56
|
818
|
|
0
|
819 rc = NGX_AGAIN;
|
|
|
820
|
|
|
821 for ( ;; ) {
|
|
|
822
|
|
|
823 if (rc == NGX_AGAIN) {
|
|
|
824
|
|
|
825 if (r->header_in->pos == r->header_in->end) {
|
|
|
826
|
|
|
827 rv = ngx_http_alloc_large_header_buffer(r, 0);
|
|
|
828
|
|
|
829 if (rv == NGX_ERROR) {
|
|
|
830 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
831 return;
|
|
|
832 }
|
|
|
833
|
|
|
834 if (rv == NGX_DECLINED) {
|
|
54
|
835 header.len = r->header_in->end - r->header_name_start;
|
|
|
836 header.data = r->header_name_start;
|
|
80
|
837
|
|
|
838 if (header.len > NGX_MAX_ERROR_STR - 300) {
|
|
|
839 header.len = NGX_MAX_ERROR_STR - 300;
|
|
|
840 header.data[header.len++] = '.';
|
|
|
841 header.data[header.len++] = '.';
|
|
|
842 header.data[header.len++] = '.';
|
|
|
843 }
|
|
|
844
|
|
54
|
845 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
|
846 "client sent too long header line: \"%V\"",
|
|
|
847 &header);
|
|
330
|
848 ngx_http_finalize_request(r, NGX_HTTP_BAD_REQUEST);
|
|
0
|
849 return;
|
|
|
850 }
|
|
|
851 }
|
|
|
852
|
|
|
853 n = ngx_http_read_request_header(r);
|
|
|
854
|
|
|
855 if (n == NGX_AGAIN || n == NGX_ERROR) {
|
|
|
856 return;
|
|
|
857 }
|
|
|
858 }
|
|
|
859
|
|
|
860 rc = ngx_http_parse_header_line(r, r->header_in);
|
|
|
861
|
|
|
862 if (rc == NGX_OK) {
|
|
|
863
|
|
60
|
864 if (r->invalid_header && cscf->ignore_invalid_headers) {
|
|
52
|
865
|
|
|
866 /* there was error while a header line parsing */
|
|
|
867
|
|
|
868 header.len = r->header_end - r->header_name_start;
|
|
|
869 header.data = r->header_name_start;
|
|
|
870
|
|
54
|
871 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
|
872 "client sent invalid header line: \"%V\"",
|
|
52
|
873 &header);
|
|
|
874 continue;
|
|
|
875 }
|
|
|
876
|
|
0
|
877 /* a header line has been parsed successfully */
|
|
|
878
|
|
50
|
879 h = ngx_list_push(&r->headers_in.headers);
|
|
|
880 if (h == NULL) {
|
|
0
|
881 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
882 return;
|
|
|
883 }
|
|
|
884
|
|
56
|
885 h->hash = r->header_hash;
|
|
|
886
|
|
0
|
887 h->key.len = r->header_name_end - r->header_name_start;
|
|
|
888 h->key.data = r->header_name_start;
|
|
|
889 h->key.data[h->key.len] = '\0';
|
|
|
890
|
|
|
891 h->value.len = r->header_end - r->header_start;
|
|
|
892 h->value.data = r->header_start;
|
|
|
893 h->value.data[h->value.len] = '\0';
|
|
|
894
|
|
198
|
895 h->lowcase_key = ngx_palloc(r->pool, h->key.len);
|
|
|
896 if (h->lowcase_key == NULL) {
|
|
|
897 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
898 return;
|
|
|
899 }
|
|
|
900
|
|
|
901 if (h->key.len == r->lowcase_index) {
|
|
|
902 ngx_memcpy(h->lowcase_key, r->lowcase_header, h->key.len);
|
|
|
903
|
|
|
904 } else {
|
|
|
905 for (i = 0; i < h->key.len; i++) {
|
|
216
|
906 h->lowcase_key[i] = ngx_tolower(h->key.data[i]);
|
|
0
|
907 }
|
|
|
908 }
|
|
|
909
|
|
198
|
910 hh = ngx_hash_find(&cmcf->headers_in_hash, h->hash,
|
|
|
911 h->lowcase_key, h->key.len);
|
|
|
912
|
|
|
913 if (hh && hh->handler(r, h, hh->offset) != NGX_OK) {
|
|
|
914 return;
|
|
|
915 }
|
|
|
916
|
|
0
|
917 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
10
|
918 "http header: \"%V: %V\"",
|
|
|
919 &h->key, &h->value);
|
|
0
|
920
|
|
|
921 continue;
|
|
54
|
922 }
|
|
|
923
|
|
|
924 if (rc == NGX_HTTP_PARSE_HEADER_DONE) {
|
|
0
|
925
|
|
|
926 /* a whole header has been parsed successfully */
|
|
|
927
|
|
|
928 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
929 "http header done");
|
|
|
930
|
|
24
|
931 r->request_length += r->header_in->pos - r->header_in->start;
|
|
|
932
|
|
0
|
933 r->http_state = NGX_HTTP_PROCESS_REQUEST_STATE;
|
|
|
934
|
|
|
935 rc = ngx_http_process_request_header(r);
|
|
|
936
|
|
|
937 if (rc != NGX_OK) {
|
|
|
938 return;
|
|
|
939 }
|
|
|
940
|
|
308
|
941 ngx_http_process_request(r);
|
|
86
|
942
|
|
0
|
943 return;
|
|
54
|
944 }
|
|
|
945
|
|
|
946 if (rc == NGX_AGAIN) {
|
|
|
947
|
|
|
948 /* a header line parsing is still not complete */
|
|
|
949
|
|
|
950 continue;
|
|
0
|
951 }
|
|
|
952
|
|
54
|
953 /* rc == NGX_HTTP_PARSE_INVALID_HEADER: "\r" is not followed by "\n" */
|
|
|
954
|
|
|
955 header.len = r->header_end - r->header_name_start;
|
|
|
956 header.data = r->header_name_start;
|
|
|
957 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
|
958 "client sent invalid header line: \"%V\\r...\"",
|
|
|
959 &header);
|
|
330
|
960 ngx_http_finalize_request(r, NGX_HTTP_BAD_REQUEST);
|
|
54
|
961 return;
|
|
0
|
962 }
|
|
|
963 }
|
|
|
964
|
|
|
965
|
|
50
|
966 static ssize_t
|
|
|
967 ngx_http_read_request_header(ngx_http_request_t *r)
|
|
0
|
968 {
|
|
|
969 ssize_t n;
|
|
|
970 ngx_event_t *rev;
|
|
230
|
971 ngx_connection_t *c;
|
|
0
|
972 ngx_http_core_srv_conf_t *cscf;
|
|
|
973
|
|
230
|
974 c = r->connection;
|
|
|
975 rev = c->read;
|
|
0
|
976
|
|
|
977 n = r->header_in->last - r->header_in->pos;
|
|
|
978
|
|
|
979 if (n > 0) {
|
|
|
980 return n;
|
|
|
981 }
|
|
|
982
|
|
72
|
983 if (rev->ready) {
|
|
230
|
984 n = c->recv(c, r->header_in->last,
|
|
|
985 r->header_in->end - r->header_in->last);
|
|
72
|
986 } else {
|
|
|
987 n = NGX_AGAIN;
|
|
0
|
988 }
|
|
|
989
|
|
|
990 if (n == NGX_AGAIN) {
|
|
|
991 if (!r->header_timeout_set) {
|
|
|
992 cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
|
|
|
993 ngx_add_timer(rev, cscf->client_header_timeout);
|
|
|
994 r->header_timeout_set = 1;
|
|
|
995 }
|
|
|
996
|
|
|
997 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) {
|
|
|
998 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
999 return NGX_ERROR;
|
|
|
1000 }
|
|
|
1001
|
|
|
1002 return NGX_AGAIN;
|
|
|
1003 }
|
|
|
1004
|
|
|
1005 if (n == 0) {
|
|
230
|
1006 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
0
|
1007 "client closed prematurely connection");
|
|
|
1008 }
|
|
|
1009
|
|
|
1010 if (n == 0 || n == NGX_ERROR) {
|
|
272
|
1011 c->error = 1;
|
|
|
1012 c->log->action = "reading client request headers";
|
|
|
1013
|
|
|
1014 ngx_http_finalize_request(r, NGX_HTTP_BAD_REQUEST);
|
|
0
|
1015 return NGX_ERROR;
|
|
|
1016 }
|
|
|
1017
|
|
|
1018 r->header_in->last += n;
|
|
|
1019
|
|
|
1020 return n;
|
|
|
1021 }
|
|
|
1022
|
|
|
1023
|
|
50
|
1024 static ngx_int_t
|
|
|
1025 ngx_http_alloc_large_header_buffer(ngx_http_request_t *r,
|
|
|
1026 ngx_uint_t request_line)
|
|
0
|
1027 {
|
|
|
1028 u_char *old, *new;
|
|
|
1029 ngx_buf_t *b;
|
|
|
1030 ngx_http_connection_t *hc;
|
|
|
1031 ngx_http_core_srv_conf_t *cscf;
|
|
|
1032
|
|
|
1033 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1034 "http alloc large header buffer");
|
|
|
1035
|
|
|
1036 if (request_line && r->state == 0) {
|
|
|
1037
|
|
|
1038 /* the client fills up the buffer with "\r\n" */
|
|
|
1039
|
|
24
|
1040 r->request_length += r->header_in->end - r->header_in->start;
|
|
|
1041
|
|
0
|
1042 r->header_in->pos = r->header_in->start;
|
|
|
1043 r->header_in->last = r->header_in->start;
|
|
|
1044
|
|
|
1045 return NGX_OK;
|
|
|
1046 }
|
|
|
1047
|
|
|
1048 old = request_line ? r->request_start : r->header_name_start;
|
|
|
1049
|
|
|
1050 cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
|
|
|
1051
|
|
|
1052 if (r->state != 0
|
|
|
1053 && (size_t) (r->header_in->pos - old)
|
|
|
1054 >= cscf->large_client_header_buffers.size)
|
|
|
1055 {
|
|
|
1056 return NGX_DECLINED;
|
|
|
1057 }
|
|
|
1058
|
|
|
1059 hc = r->http_connection;
|
|
|
1060
|
|
|
1061 if (hc->nfree) {
|
|
|
1062 b = hc->free[--hc->nfree];
|
|
|
1063
|
|
|
1064 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
10
|
1065 "http large header free: %p %uz",
|
|
0
|
1066 b->pos, b->end - b->last);
|
|
|
1067
|
|
|
1068 } else if (hc->nbusy < cscf->large_client_header_buffers.num) {
|
|
|
1069
|
|
|
1070 if (hc->busy == NULL) {
|
|
|
1071 hc->busy = ngx_palloc(r->connection->pool,
|
|
|
1072 cscf->large_client_header_buffers.num * sizeof(ngx_buf_t *));
|
|
|
1073 if (hc->busy == NULL) {
|
|
|
1074 return NGX_ERROR;
|
|
|
1075 }
|
|
|
1076 }
|
|
|
1077
|
|
|
1078 b = ngx_create_temp_buf(r->connection->pool,
|
|
|
1079 cscf->large_client_header_buffers.size);
|
|
|
1080 if (b == NULL) {
|
|
|
1081 return NGX_ERROR;
|
|
|
1082 }
|
|
|
1083
|
|
|
1084 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
10
|
1085 "http large header alloc: %p %uz",
|
|
0
|
1086 b->pos, b->end - b->last);
|
|
|
1087
|
|
|
1088 } else {
|
|
|
1089 return NGX_DECLINED;
|
|
|
1090 }
|
|
|
1091
|
|
|
1092 hc->busy[hc->nbusy++] = b;
|
|
|
1093
|
|
|
1094 if (r->state == 0) {
|
|
|
1095 /*
|
|
|
1096 * r->state == 0 means that a header line was parsed successfully
|
|
|
1097 * and we do not need to copy incomplete header line and
|
|
|
1098 * to relocate the parser header pointers
|
|
|
1099 */
|
|
|
1100
|
|
24
|
1101 r->request_length += r->header_in->end - r->header_in->start;
|
|
|
1102
|
|
0
|
1103 r->header_in = b;
|
|
|
1104
|
|
|
1105 return NGX_OK;
|
|
|
1106 }
|
|
|
1107
|
|
|
1108 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
1109 "http large header copy: %d", r->header_in->pos - old);
|
|
|
1110
|
|
24
|
1111 r->request_length += old - r->header_in->start;
|
|
|
1112
|
|
0
|
1113 new = b->start;
|
|
|
1114
|
|
|
1115 ngx_memcpy(new, old, r->header_in->pos - old);
|
|
|
1116
|
|
|
1117 b->pos = new + (r->header_in->pos - old);
|
|
|
1118 b->last = new + (r->header_in->pos - old);
|
|
|
1119
|
|
|
1120 if (request_line) {
|
|
|
1121 r->request_start = new;
|
|
|
1122
|
|
|
1123 if (r->request_end) {
|
|
|
1124 r->request_end = new + (r->request_end - old);
|
|
|
1125 }
|
|
|
1126
|
|
|
1127 r->method_end = new + (r->method_end - old);
|
|
|
1128
|
|
|
1129 r->uri_start = new + (r->uri_start - old);
|
|
|
1130 r->uri_end = new + (r->uri_end - old);
|
|
|
1131
|
|
|
1132 if (r->schema_start) {
|
|
|
1133 r->schema_start = new + (r->schema_start - old);
|
|
|
1134 r->schema_end = new + (r->schema_end - old);
|
|
|
1135 }
|
|
|
1136
|
|
|
1137 if (r->host_start) {
|
|
|
1138 r->host_start = new + (r->host_start - old);
|
|
270
|
1139 if (r->host_end) {
|
|
|
1140 r->host_end = new + (r->host_end - old);
|
|
|
1141 }
|
|
0
|
1142 }
|
|
|
1143
|
|
|
1144 if (r->port_start) {
|
|
|
1145 r->port_start = new + (r->port_start - old);
|
|
|
1146 r->port_end = new + (r->port_end - old);
|
|
|
1147 }
|
|
|
1148
|
|
|
1149 if (r->uri_ext) {
|
|
|
1150 r->uri_ext = new + (r->uri_ext - old);
|
|
|
1151 }
|
|
|
1152
|
|
|
1153 if (r->args_start) {
|
|
|
1154 r->args_start = new + (r->args_start - old);
|
|
|
1155 }
|
|
|
1156
|
|
354
|
1157 if (r->http_protocol.data) {
|
|
|
1158 r->http_protocol.data = new + (r->http_protocol.data - old);
|
|
|
1159 }
|
|
|
1160
|
|
0
|
1161 } else {
|
|
|
1162 r->header_name_start = new;
|
|
|
1163 r->header_name_end = new + (r->header_name_end - old);
|
|
|
1164 r->header_start = new + (r->header_start - old);
|
|
|
1165 r->header_end = new + (r->header_end - old);
|
|
|
1166 }
|
|
|
1167
|
|
|
1168 r->header_in = b;
|
|
|
1169
|
|
|
1170 return NGX_OK;
|
|
|
1171 }
|
|
|
1172
|
|
|
1173
|
|
50
|
1174 static ngx_int_t
|
|
58
|
1175 ngx_http_process_header_line(ngx_http_request_t *r, ngx_table_elt_t *h,
|
|
|
1176 ngx_uint_t offset)
|
|
|
1177 {
|
|
|
1178 ngx_table_elt_t **ph;
|
|
|
1179
|
|
|
1180 ph = (ngx_table_elt_t **) ((char *) &r->headers_in + offset);
|
|
|
1181
|
|
|
1182 if (*ph == NULL) {
|
|
|
1183 *ph = h;
|
|
|
1184 }
|
|
|
1185
|
|
|
1186 return NGX_OK;
|
|
|
1187 }
|
|
|
1188
|
|
|
1189
|
|
|
1190 static ngx_int_t
|
|
72
|
1191 ngx_http_process_unique_header_line(ngx_http_request_t *r, ngx_table_elt_t *h,
|
|
|
1192 ngx_uint_t offset)
|
|
|
1193 {
|
|
|
1194 ngx_table_elt_t **ph;
|
|
|
1195
|
|
|
1196 ph = (ngx_table_elt_t **) ((char *) &r->headers_in + offset);
|
|
|
1197
|
|
|
1198 if (*ph == NULL) {
|
|
|
1199 *ph = h;
|
|
|
1200 return NGX_OK;
|
|
|
1201 }
|
|
|
1202
|
|
|
1203 ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
|
|
230
|
1204 "client sent duplicate header line: \"%V: %V\", "
|
|
|
1205 "previous value: \"%V: %V\"",
|
|
|
1206 &h->key, &h->value, &(*ph)->key, &(*ph)->value);
|
|
72
|
1207
|
|
|
1208 ngx_http_finalize_request(r, NGX_HTTP_BAD_REQUEST);
|
|
|
1209
|
|
|
1210 return NGX_ERROR;
|
|
|
1211 }
|
|
|
1212
|
|
|
1213
|
|
|
1214 static ngx_int_t
|
|
336
|
1215 ngx_http_process_connection(ngx_http_request_t *r, ngx_table_elt_t *h,
|
|
|
1216 ngx_uint_t offset)
|
|
|
1217 {
|
|
340
|
1218 if (ngx_strcasestrn(h->value.data, "close", 5 - 1)) {
|
|
336
|
1219 r->headers_in.connection_type = NGX_HTTP_CONNECTION_CLOSE;
|
|
|
1220
|
|
340
|
1221 } else if (ngx_strcasestrn(h->value.data, "keep-alive", 10 - 1)) {
|
|
336
|
1222 r->headers_in.connection_type = NGX_HTTP_CONNECTION_KEEP_ALIVE;
|
|
|
1223 }
|
|
|
1224
|
|
|
1225 return NGX_OK;
|
|
|
1226 }
|
|
|
1227
|
|
|
1228
|
|
|
1229 static ngx_int_t
|
|
58
|
1230 ngx_http_process_cookie(ngx_http_request_t *r, ngx_table_elt_t *h,
|
|
|
1231 ngx_uint_t offset)
|
|
|
1232 {
|
|
|
1233 ngx_table_elt_t **cookie;
|
|
|
1234
|
|
|
1235 cookie = ngx_array_push(&r->headers_in.cookies);
|
|
72
|
1236 if (cookie) {
|
|
|
1237 *cookie = h;
|
|
|
1238 return NGX_OK;
|
|
58
|
1239 }
|
|
|
1240
|
|
72
|
1241 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
|
|
|
1242
|
|
|
1243 return NGX_ERROR;
|
|
58
|
1244 }
|
|
|
1245
|
|
|
1246
|
|
|
1247 static ngx_int_t
|
|
50
|
1248 ngx_http_process_request_header(ngx_http_request_t *r)
|
|
0
|
1249 {
|
|
308
|
1250 size_t len;
|
|
|
1251 u_char *host, *ua, *user_agent, ch;
|
|
|
1252 ngx_uint_t hash;
|
|
0
|
1253
|
|
|
1254 if (r->headers_in.host) {
|
|
198
|
1255
|
|
|
1256 hash = 0;
|
|
|
1257
|
|
0
|
1258 for (len = 0; len < r->headers_in.host->value.len; len++) {
|
|
26
|
1259 ch = r->headers_in.host->value.data[len];
|
|
|
1260
|
|
|
1261 if (ch == ':') {
|
|
0
|
1262 break;
|
|
|
1263 }
|
|
26
|
1264
|
|
198
|
1265 ch = ngx_tolower(ch);
|
|
|
1266 r->headers_in.host->value.data[len] = ch;
|
|
|
1267 hash = ngx_hash(hash, ch);
|
|
0
|
1268 }
|
|
54
|
1269
|
|
198
|
1270 if (len && r->headers_in.host->value.data[len - 1] == '.') {
|
|
58
|
1271 len--;
|
|
198
|
1272 hash = ngx_hash_key(r->headers_in.host->value.data, len);
|
|
58
|
1273 }
|
|
|
1274
|
|
0
|
1275 r->headers_in.host_name_len = len;
|
|
|
1276
|
|
198
|
1277 if (r->virtual_names) {
|
|
306
|
1278
|
|
|
1279 host = r->host_start;
|
|
|
1280
|
|
|
1281 if (host == NULL) {
|
|
|
1282 host = r->headers_in.host->value.data;
|
|
|
1283 len = r->headers_in.host_name_len;
|
|
|
1284
|
|
|
1285 } else {
|
|
|
1286 len = r->host_end - host;
|
|
|
1287 }
|
|
|
1288
|
|
|
1289 ngx_http_find_virtual_server(r, host, len, hash);
|
|
198
|
1290 }
|
|
0
|
1291
|
|
|
1292 } else {
|
|
|
1293 if (r->http_version > NGX_HTTP_VERSION_10) {
|
|
54
|
1294 ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
|
|
|
1295 "client sent HTTP/1.1 request without \"Host\" header");
|
|
|
1296 ngx_http_finalize_request(r, NGX_HTTP_BAD_REQUEST);
|
|
|
1297 return NGX_ERROR;
|
|
0
|
1298 }
|
|
54
|
1299
|
|
0
|
1300 r->headers_in.host_name_len = 0;
|
|
|
1301 }
|
|
|
1302
|
|
|
1303 if (r->headers_in.content_length) {
|
|
|
1304 r->headers_in.content_length_n =
|
|
212
|
1305 ngx_atoof(r->headers_in.content_length->value.data,
|
|
0
|
1306 r->headers_in.content_length->value.len);
|
|
|
1307
|
|
|
1308 if (r->headers_in.content_length_n == NGX_ERROR) {
|
|
54
|
1309 ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
|
|
|
1310 "client sent invalid \"Content-Length\" header");
|
|
130
|
1311 ngx_http_finalize_request(r, NGX_HTTP_LENGTH_REQUIRED);
|
|
54
|
1312 return NGX_ERROR;
|
|
0
|
1313 }
|
|
|
1314 }
|
|
|
1315
|
|
188
|
1316 if (r->method & (NGX_HTTP_POST|NGX_HTTP_PUT)
|
|
|
1317 && r->headers_in.content_length_n == -1)
|
|
|
1318 {
|
|
54
|
1319 ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
|
|
|
1320 "client sent POST method without \"Content-Length\" header");
|
|
130
|
1321 ngx_http_finalize_request(r, NGX_HTTP_LENGTH_REQUIRED);
|
|
|
1322 return NGX_ERROR;
|
|
|
1323 }
|
|
|
1324
|
|
336
|
1325 if (r->method & NGX_HTTP_TRACE) {
|
|
294
|
1326 ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
|
|
|
1327 "client sent TRACE method");
|
|
|
1328 ngx_http_finalize_request(r, NGX_HTTP_NOT_ALLOWED);
|
|
|
1329 return NGX_ERROR;
|
|
|
1330 }
|
|
|
1331
|
|
130
|
1332 if (r->headers_in.transfer_encoding
|
|
340
|
1333 && ngx_strcasestrn(r->headers_in.transfer_encoding->value.data,
|
|
|
1334 "chunked", 7 - 1))
|
|
130
|
1335 {
|
|
|
1336 ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
|
|
|
1337 "client sent \"Transfer-Encoding: chunked\" header");
|
|
|
1338 ngx_http_finalize_request(r, NGX_HTTP_LENGTH_REQUIRED);
|
|
54
|
1339 return NGX_ERROR;
|
|
0
|
1340 }
|
|
|
1341
|
|
336
|
1342 if (r->headers_in.connection_type == NGX_HTTP_CONNECTION_KEEP_ALIVE) {
|
|
|
1343 if (r->headers_in.keep_alive) {
|
|
|
1344 r->headers_in.keep_alive_n =
|
|
|
1345 ngx_atotm(r->headers_in.keep_alive->value.data,
|
|
|
1346 r->headers_in.keep_alive->value.len);
|
|
0
|
1347 }
|
|
|
1348 }
|
|
|
1349
|
|
|
1350 if (r->headers_in.user_agent) {
|
|
|
1351
|
|
|
1352 /*
|
|
|
1353 * check some widespread browsers while the headers are still
|
|
|
1354 * in CPU cache
|
|
|
1355 */
|
|
|
1356
|
|
|
1357 user_agent = r->headers_in.user_agent->value.data;
|
|
|
1358
|
|
340
|
1359 ua = ngx_strstrn(user_agent, "MSIE", 4 - 1);
|
|
0
|
1360
|
|
|
1361 if (ua && ua + 8 < user_agent + r->headers_in.user_agent->value.len) {
|
|
|
1362
|
|
|
1363 r->headers_in.msie = 1;
|
|
|
1364
|
|
|
1365 if (ua[4] == ' ' && ua[5] == '4' && ua[6] == '.') {
|
|
|
1366 r->headers_in.msie4 = 1;
|
|
|
1367 }
|
|
|
1368
|
|
|
1369 #if 0
|
|
|
1370 /* MSIE ignores the SSL "close notify" alert */
|
|
22
|
1371 if (c->ssl) {
|
|
96
|
1372 c->ssl->no_send_shutdown = 1;
|
|
22
|
1373 }
|
|
0
|
1374 #endif
|
|
|
1375 }
|
|
|
1376
|
|
340
|
1377 if (ngx_strstrn(user_agent, "Opera", 5 - 1)) {
|
|
0
|
1378 r->headers_in.opera = 1;
|
|
|
1379 r->headers_in.msie = 0;
|
|
|
1380 r->headers_in.msie4 = 0;
|
|
|
1381 }
|
|
|
1382
|
|
|
1383 if (!r->headers_in.msie && !r->headers_in.opera) {
|
|
|
1384
|
|
340
|
1385 if (ngx_strstrn(user_agent, "Gecko/", 6 - 1)) {
|
|
0
|
1386 r->headers_in.gecko = 1;
|
|
|
1387
|
|
340
|
1388 } else if (ngx_strstrn(user_agent, "Konqueror", 9 - 1)) {
|
|
0
|
1389 r->headers_in.konqueror = 1;
|
|
|
1390 }
|
|
|
1391 }
|
|
|
1392 }
|
|
|
1393
|
|
308
|
1394 return NGX_OK;
|
|
|
1395 }
|
|
|
1396
|
|
|
1397
|
|
|
1398 static void
|
|
|
1399 ngx_http_process_request(ngx_http_request_t *r)
|
|
|
1400 {
|
|
|
1401 ngx_connection_t *c;
|
|
218
|
1402 #if (NGX_HTTP_SSL)
|
|
308
|
1403 long rc;
|
|
|
1404 ngx_http_ssl_srv_conf_t *sscf;
|
|
|
1405 #endif
|
|
|
1406
|
|
|
1407 c = r->connection;
|
|
|
1408
|
|
354
|
1409 if (r->plain_http) {
|
|
|
1410 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
|
1411 "client sent plain HTTP request to HTTPS port");
|
|
|
1412 ngx_http_finalize_request(r, NGX_HTTP_TO_HTTPS);
|
|
|
1413 return;
|
|
|
1414 }
|
|
|
1415
|
|
308
|
1416 #if (NGX_HTTP_SSL)
|
|
|
1417
|
|
|
1418 if (c->ssl) {
|
|
218
|
1419 sscf = ngx_http_get_module_srv_conf(r, ngx_http_ssl_module);
|
|
|
1420
|
|
|
1421 if (sscf->verify) {
|
|
308
|
1422 rc = SSL_get_verify_result(c->ssl->connection);
|
|
218
|
1423
|
|
|
1424 if (rc != X509_V_OK) {
|
|
308
|
1425 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
220
|
1426 "client SSL certificate verify error: (%l:%s)",
|
|
218
|
1427 rc, X509_verify_cert_error_string(rc));
|
|
|
1428 ngx_http_finalize_request(r, NGX_HTTPS_CERT_ERROR);
|
|
308
|
1429 return;
|
|
218
|
1430 }
|
|
|
1431
|
|
308
|
1432 if (SSL_get_peer_certificate(c->ssl->connection)
|
|
218
|
1433 == NULL)
|
|
|
1434 {
|
|
308
|
1435 ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
218
|
1436 "client sent no required SSL certificate");
|
|
|
1437 ngx_http_finalize_request(r, NGX_HTTPS_NO_CERT);
|
|
308
|
1438 return;
|
|
218
|
1439 }
|
|
|
1440 }
|
|
|
1441 }
|
|
|
1442
|
|
|
1443 #endif
|
|
|
1444
|
|
308
|
1445 if (c->read->timer_set) {
|
|
|
1446 ngx_del_timer(c->read);
|
|
|
1447 }
|
|
|
1448
|
|
|
1449 #if (NGX_STAT_STUB)
|
|
|
1450 ngx_atomic_fetch_add(ngx_stat_reading, -1);
|
|
|
1451 r->stat_reading = 0;
|
|
|
1452 ngx_atomic_fetch_add(ngx_stat_writing, 1);
|
|
|
1453 r->stat_writing = 1;
|
|
|
1454 #endif
|
|
|
1455
|
|
|
1456 c->read->handler = ngx_http_request_handler;
|
|
|
1457 c->write->handler = ngx_http_request_handler;
|
|
326
|
1458 r->read_event_handler = ngx_http_block_reading;
|
|
308
|
1459
|
|
|
1460 ngx_http_handler(r);
|
|
|
1461
|
|
|
1462 return;
|
|
0
|
1463 }
|
|
|
1464
|
|
|
1465
|
|
162
|
1466 static void
|
|
306
|
1467 ngx_http_find_virtual_server(ngx_http_request_t *r, u_char *host, size_t len,
|
|
|
1468 ngx_uint_t hash)
|
|
26
|
1469 {
|
|
142
|
1470 ngx_http_core_loc_conf_t *clcf;
|
|
|
1471 ngx_http_core_srv_conf_t *cscf;
|
|
326
|
1472 #if (NGX_PCRE)
|
|
|
1473 ngx_int_t n;
|
|
|
1474 ngx_uint_t i;
|
|
|
1475 ngx_str_t name;
|
|
|
1476 ngx_http_server_name_t *sn;
|
|
|
1477 #endif
|
|
|
1478
|
|
|
1479 cscf = ngx_hash_find_combined(&r->virtual_names->names, hash, host, len);
|
|
312
|
1480
|
|
|
1481 if (cscf) {
|
|
|
1482 goto found;
|
|
26
|
1483 }
|
|
|
1484
|
|
326
|
1485 #if (NGX_PCRE)
|
|
|
1486
|
|
|
1487 if (r->virtual_names->nregex) {
|
|
|
1488
|
|
|
1489 name.len = len;
|
|
|
1490 name.data = host;
|
|
|
1491
|
|
|
1492 sn = r->virtual_names->regex;
|
|
|
1493
|
|
|
1494 for (i = 0; i < r->virtual_names->nregex; i++) {
|
|
|
1495
|
|
|
1496 n = ngx_regex_exec(sn[i].regex, &name, NULL, 0);
|
|
|
1497
|
|
|
1498 if (n == NGX_REGEX_NO_MATCHED) {
|
|
|
1499 continue;
|
|
|
1500 }
|
|
|
1501
|
|
|
1502 if (n < 0) {
|
|
|
1503 ngx_log_error(NGX_LOG_ALERT, r->connection->log, 0,
|
|
|
1504 ngx_regex_exec_n
|
|
|
1505 " failed: %d on \"%V\" using \"%V\"",
|
|
|
1506 n, &name, &sn[i].name);
|
|
|
1507 return;
|
|
|
1508 }
|
|
|
1509
|
|
|
1510 /* match */
|
|
|
1511
|
|
|
1512 cscf = sn[i].core_srv_conf;
|
|
|
1513
|
|
|
1514 goto found;
|
|
|
1515 }
|
|
|
1516 }
|
|
|
1517
|
|
|
1518 #endif
|
|
|
1519
|
|
212
|
1520 cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
|
|
|
1521
|
|
|
1522 if (cscf->wildcard) {
|
|
|
1523 r->server_name.len = len;
|
|
|
1524 r->server_name.data = host;
|
|
|
1525 }
|
|
|
1526
|
|
162
|
1527 return;
|
|
58
|
1528
|
|
|
1529 found:
|
|
|
1530
|
|
142
|
1531 r->server_name.len = len;
|
|
|
1532 r->server_name.data = host;
|
|
|
1533
|
|
|
1534 r->srv_conf = cscf->ctx->srv_conf;
|
|
|
1535 r->loc_conf = cscf->ctx->loc_conf;
|
|
58
|
1536
|
|
|
1537 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
1538 r->connection->log->file = clcf->err_log->file;
|
|
|
1539
|
|
|
1540 if (!(r->connection->log->log_level & NGX_LOG_DEBUG_CONNECTION)) {
|
|
|
1541 r->connection->log->log_level = clcf->err_log->log_level;
|
|
26
|
1542 }
|
|
|
1543
|
|
162
|
1544 return;
|
|
26
|
1545 }
|
|
|
1546
|
|
|
1547
|
|
58
|
1548 static void
|
|
|
1549 ngx_http_request_handler(ngx_event_t *ev)
|
|
|
1550 {
|
|
|
1551 ngx_connection_t *c;
|
|
|
1552 ngx_http_request_t *r;
|
|
214
|
1553 ngx_http_log_ctx_t *ctx;
|
|
58
|
1554
|
|
|
1555 c = ev->data;
|
|
|
1556 r = c->data;
|
|
|
1557
|
|
214
|
1558 ctx = c->log->data;
|
|
|
1559 ctx->current_request = r;
|
|
|
1560
|
|
58
|
1561 if (ev->write) {
|
|
|
1562 r->write_event_handler(r);
|
|
|
1563
|
|
|
1564 } else {
|
|
|
1565 r->read_event_handler(r);
|
|
|
1566 }
|
|
|
1567 }
|
|
|
1568
|
|
|
1569
|
|
50
|
1570 void
|
|
58
|
1571 ngx_http_finalize_request(ngx_http_request_t *r, ngx_int_t rc)
|
|
0
|
1572 {
|
|
330
|
1573 ngx_connection_t *c;
|
|
58
|
1574 ngx_http_request_t *pr;
|
|
214
|
1575 ngx_http_log_ctx_t *ctx;
|
|
0
|
1576 ngx_http_core_loc_conf_t *clcf;
|
|
|
1577
|
|
58
|
1578 if (rc == NGX_DONE) {
|
|
118
|
1579 /* the request pool may be already destroyed */
|
|
58
|
1580 return;
|
|
|
1581 }
|
|
|
1582
|
|
330
|
1583 c = r->connection;
|
|
|
1584
|
|
|
1585 ngx_log_debug3(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
132
|
1586 "http finalize request: %d, \"%V?%V\"",
|
|
|
1587 rc, &r->uri, &r->args);
|
|
|
1588
|
|
230
|
1589 if (rc == NGX_DECLINED) {
|
|
|
1590 r->content_handler = NULL;
|
|
|
1591 r->write_event_handler = ngx_http_core_run_phases;
|
|
|
1592 ngx_http_core_run_phases(r);
|
|
|
1593 return;
|
|
|
1594 }
|
|
|
1595
|
|
248
|
1596 if (r != r->main && r->post_subrequest) {
|
|
|
1597 rc = r->post_subrequest->handler(r, r->post_subrequest->data, rc);
|
|
216
|
1598 }
|
|
|
1599
|
|
330
|
1600 if (rc == NGX_ERROR || rc == NGX_HTTP_REQUEST_TIME_OUT || c->error) {
|
|
282
|
1601 if (rc > 0 && r->headers_out.status == 0) {
|
|
|
1602 r->headers_out.status = rc;
|
|
190
|
1603 }
|
|
|
1604
|
|
162
|
1605 if (ngx_http_post_action(r) == NGX_OK) {
|
|
|
1606 return;
|
|
|
1607 }
|
|
|
1608
|
|
118
|
1609 ngx_http_close_request(r, 0);
|
|
0
|
1610 return;
|
|
|
1611 }
|
|
|
1612
|
|
186
|
1613 if (rc >= NGX_HTTP_SPECIAL_RESPONSE
|
|
|
1614 || rc == NGX_HTTP_CREATED
|
|
|
1615 || rc == NGX_HTTP_NO_CONTENT)
|
|
|
1616 {
|
|
136
|
1617 if (rc == NGX_HTTP_CLOSE) {
|
|
|
1618 ngx_http_close_request(r, rc);
|
|
|
1619 return;
|
|
|
1620 }
|
|
|
1621
|
|
146
|
1622 if (r == r->main) {
|
|
330
|
1623 if (c->read->timer_set) {
|
|
|
1624 ngx_del_timer(c->read);
|
|
118
|
1625 }
|
|
|
1626
|
|
330
|
1627 if (c->write->timer_set) {
|
|
|
1628 ngx_del_timer(c->write);
|
|
118
|
1629 }
|
|
|
1630 }
|
|
|
1631
|
|
|
1632 ngx_http_finalize_request(r, ngx_http_special_response_handler(r, rc));
|
|
|
1633 return;
|
|
|
1634 }
|
|
|
1635
|
|
146
|
1636 if (r != r->main || rc == NGX_AGAIN) {
|
|
74
|
1637 if (ngx_http_set_write_handler(r) != NGX_OK) {
|
|
|
1638 return;
|
|
|
1639 }
|
|
58
|
1640 }
|
|
|
1641
|
|
|
1642 r->done = 1;
|
|
|
1643
|
|
330
|
1644 if (r != c->data) {
|
|
|
1645 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
132
|
1646 "http finalize non-active request: \"%V?%V\"",
|
|
|
1647 &r->uri, &r->args);
|
|
58
|
1648 return;
|
|
|
1649 }
|
|
|
1650
|
|
146
|
1651 if (r != r->main) {
|
|
58
|
1652
|
|
|
1653 pr = r->parent;
|
|
|
1654
|
|
330
|
1655 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
132
|
1656 "http parent request: \"%V?%V\"", &pr->uri, &pr->args);
|
|
76
|
1657
|
|
58
|
1658 if (rc != NGX_AGAIN) {
|
|
330
|
1659 c->data = pr;
|
|
58
|
1660 }
|
|
|
1661
|
|
330
|
1662 ctx = c->log->data;
|
|
214
|
1663 ctx->current_request = pr;
|
|
|
1664
|
|
58
|
1665 if (pr->postponed) {
|
|
|
1666
|
|
330
|
1667 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
132
|
1668 "http request: \"%V?%V\" has postponed",
|
|
|
1669 &pr->uri, &pr->args);
|
|
76
|
1670
|
|
58
|
1671 if (rc != NGX_AGAIN && pr->postponed->request == r) {
|
|
|
1672 pr->postponed = pr->postponed->next;
|
|
146
|
1673 }
|
|
|
1674
|
|
|
1675 if (r->fast_subrequest) {
|
|
194
|
1676
|
|
|
1677 if (rc == NGX_AGAIN) {
|
|
|
1678 r->fast_subrequest = 0;
|
|
|
1679 }
|
|
|
1680
|
|
330
|
1681 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
146
|
1682 "http fast subrequest: \"%V?%V\" done",
|
|
|
1683 &r->uri, &r->args);
|
|
|
1684 return;
|
|
58
|
1685 }
|
|
|
1686
|
|
194
|
1687 if (rc != NGX_AGAIN) {
|
|
330
|
1688 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
194
|
1689 "http wake parent request: \"%V?%V\"",
|
|
|
1690 &pr->uri, &pr->args);
|
|
|
1691
|
|
|
1692 pr->write_event_handler(pr);
|
|
|
1693 }
|
|
58
|
1694 }
|
|
|
1695
|
|
|
1696 return;
|
|
|
1697 }
|
|
0
|
1698
|
|
118
|
1699 if (rc == NGX_AGAIN) {
|
|
0
|
1700 return;
|
|
76
|
1701 }
|
|
|
1702
|
|
330
|
1703 if (c->buffered) {
|
|
74
|
1704 (void) ngx_http_set_write_handler(r);
|
|
0
|
1705 return;
|
|
|
1706 }
|
|
|
1707
|
|
178
|
1708 if (!r->post_action) {
|
|
|
1709 r->request_complete = 1;
|
|
|
1710 }
|
|
|
1711
|
|
162
|
1712 if (ngx_http_post_action(r) == NGX_OK) {
|
|
126
|
1713 return;
|
|
|
1714 }
|
|
|
1715
|
|
330
|
1716 if (c->read->timer_set) {
|
|
|
1717 ngx_del_timer(c->read);
|
|
|
1718 }
|
|
|
1719
|
|
|
1720 if (c->write->timer_set) {
|
|
|
1721 c->write->delayed = 0;
|
|
|
1722 ngx_del_timer(c->write);
|
|
0
|
1723 }
|
|
|
1724
|
|
330
|
1725 if (c->destroyed) {
|
|
|
1726 return;
|
|
0
|
1727 }
|
|
|
1728
|
|
330
|
1729 if (c->read->eof) {
|
|
|
1730 ngx_http_close_request(r, 0);
|
|
138
|
1731 return;
|
|
|
1732 }
|
|
|
1733
|
|
162
|
1734 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
0
|
1735
|
|
|
1736 if (!ngx_terminate
|
|
|
1737 && !ngx_exiting
|
|
|
1738 && r->keepalive != 0
|
|
|
1739 && clcf->keepalive_timeout > 0)
|
|
|
1740 {
|
|
|
1741 ngx_http_set_keepalive(r);
|
|
|
1742 return;
|
|
|
1743
|
|
|
1744 } else if (r->lingering_close && clcf->lingering_timeout > 0) {
|
|
|
1745 ngx_http_set_lingering_close(r);
|
|
|
1746 return;
|
|
|
1747 }
|
|
|
1748
|
|
|
1749 ngx_http_close_request(r, 0);
|
|
|
1750 }
|
|
|
1751
|
|
|
1752
|
|
74
|
1753 static ngx_int_t
|
|
50
|
1754 ngx_http_set_write_handler(ngx_http_request_t *r)
|
|
0
|
1755 {
|
|
|
1756 ngx_event_t *wev;
|
|
|
1757 ngx_http_core_loc_conf_t *clcf;
|
|
|
1758
|
|
58
|
1759 r->http_state = NGX_HTTP_WRITING_REQUEST_STATE;
|
|
|
1760
|
|
326
|
1761 r->read_event_handler = ngx_http_test_reading;
|
|
74
|
1762 r->write_event_handler = ngx_http_writer;
|
|
|
1763
|
|
0
|
1764 wev = r->connection->write;
|
|
|
1765
|
|
|
1766 if (wev->ready && wev->delayed) {
|
|
74
|
1767 return NGX_OK;
|
|
0
|
1768 }
|
|
|
1769
|
|
58
|
1770 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
0
|
1771 if (!wev->delayed) {
|
|
|
1772 ngx_add_timer(wev, clcf->send_timeout);
|
|
|
1773 }
|
|
|
1774
|
|
2
|
1775 if (ngx_handle_write_event(wev, clcf->send_lowat) == NGX_ERROR) {
|
|
0
|
1776 ngx_http_close_request(r, 0);
|
|
74
|
1777 return NGX_ERROR;
|
|
0
|
1778 }
|
|
74
|
1779
|
|
|
1780 return NGX_OK;
|
|
0
|
1781 }
|
|
|
1782
|
|
|
1783
|
|
58
|
1784 static void
|
|
|
1785 ngx_http_writer(ngx_http_request_t *r)
|
|
0
|
1786 {
|
|
|
1787 int rc;
|
|
58
|
1788 ngx_event_t *wev;
|
|
0
|
1789 ngx_connection_t *c;
|
|
|
1790 ngx_http_core_loc_conf_t *clcf;
|
|
|
1791
|
|
58
|
1792 c = r->connection;
|
|
|
1793 wev = c->write;
|
|
|
1794
|
|
132
|
1795 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, wev->log, 0,
|
|
|
1796 "http writer handler: \"%V?%V\"", &r->uri, &r->args);
|
|
0
|
1797
|
|
|
1798 if (wev->timedout) {
|
|
|
1799 if (!wev->delayed) {
|
|
54
|
1800 ngx_log_error(NGX_LOG_INFO, c->log, NGX_ETIMEDOUT,
|
|
|
1801 "client timed out");
|
|
|
1802 c->timedout = 1;
|
|
116
|
1803
|
|
162
|
1804 ngx_http_finalize_request(r, NGX_HTTP_REQUEST_TIME_OUT);
|
|
0
|
1805 return;
|
|
|
1806 }
|
|
|
1807
|
|
|
1808 wev->timedout = 0;
|
|
|
1809 wev->delayed = 0;
|
|
|
1810
|
|
|
1811 if (!wev->ready) {
|
|
102
|
1812 clcf = ngx_http_get_module_loc_conf(r->main, ngx_http_core_module);
|
|
0
|
1813 ngx_add_timer(wev, clcf->send_timeout);
|
|
|
1814
|
|
2
|
1815 if (ngx_handle_write_event(wev, clcf->send_lowat) == NGX_ERROR) {
|
|
118
|
1816 ngx_http_close_request(r, 0);
|
|
0
|
1817 }
|
|
|
1818
|
|
|
1819 return;
|
|
|
1820 }
|
|
|
1821
|
|
|
1822 } else {
|
|
|
1823 if (wev->delayed) {
|
|
|
1824 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, wev->log, 0,
|
|
|
1825 "http writer delayed");
|
|
|
1826
|
|
102
|
1827 clcf = ngx_http_get_module_loc_conf(r->main, ngx_http_core_module);
|
|
2
|
1828
|
|
|
1829 if (ngx_handle_write_event(wev, clcf->send_lowat) == NGX_ERROR) {
|
|
118
|
1830 ngx_http_close_request(r, 0);
|
|
0
|
1831 }
|
|
|
1832
|
|
|
1833 return;
|
|
|
1834 }
|
|
|
1835 }
|
|
|
1836
|
|
132
|
1837 rc = ngx_http_output_filter(r, NULL);
|
|
|
1838
|
|
|
1839 if (c->destroyed) {
|
|
|
1840 return;
|
|
58
|
1841 }
|
|
|
1842
|
|
132
|
1843 ngx_log_debug3(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
|
1844 "http writer output filter: %d, \"%V?%V\"",
|
|
|
1845 rc, &r->uri, &r->args);
|
|
0
|
1846
|
|
|
1847 if (rc == NGX_AGAIN) {
|
|
102
|
1848 clcf = ngx_http_get_module_loc_conf(r->main, ngx_http_core_module);
|
|
0
|
1849 if (!wev->ready && !wev->delayed) {
|
|
|
1850 ngx_add_timer(wev, clcf->send_timeout);
|
|
|
1851 }
|
|
|
1852
|
|
2
|
1853 if (ngx_handle_write_event(wev, clcf->send_lowat) == NGX_ERROR) {
|
|
118
|
1854 ngx_http_close_request(r, 0);
|
|
0
|
1855 }
|
|
|
1856
|
|
254
|
1857 if (r == r->main || r->buffered) {
|
|
146
|
1858 return;
|
|
|
1859 }
|
|
|
1860
|
|
|
1861 rc = NGX_OK;
|
|
0
|
1862 }
|
|
|
1863
|
|
132
|
1864 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, wev->log, 0,
|
|
|
1865 "http writer done: \"%V?%V\"", &r->uri, &r->args);
|
|
0
|
1866
|
|
|
1867 ngx_http_finalize_request(r, rc);
|
|
|
1868 }
|
|
|
1869
|
|
|
1870
|
|
326
|
1871 void
|
|
|
1872 ngx_http_block_reading(ngx_http_request_t *r)
|
|
0
|
1873 {
|
|
318
|
1874 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
326
|
1875 "http reading blocked");
|
|
318
|
1876
|
|
|
1877 /* aio does not call this handler */
|
|
|
1878
|
|
|
1879 if ((ngx_event_flags & NGX_USE_LEVEL_EVENT)
|
|
|
1880 && r->connection->read->active)
|
|
|
1881 {
|
|
|
1882 if (ngx_del_event(r->connection->read, NGX_READ_EVENT, 0)
|
|
|
1883 == NGX_ERROR)
|
|
|
1884 {
|
|
|
1885 ngx_http_close_request(r, 0);
|
|
|
1886 }
|
|
|
1887 }
|
|
|
1888 }
|
|
|
1889
|
|
|
1890
|
|
|
1891 static void
|
|
326
|
1892 ngx_http_test_reading(ngx_http_request_t *r)
|
|
318
|
1893 {
|
|
276
|
1894 int n;
|
|
|
1895 char buf[1];
|
|
|
1896 ngx_err_t err;
|
|
|
1897 ngx_event_t *rev;
|
|
|
1898 ngx_connection_t *c;
|
|
|
1899
|
|
|
1900 c = r->connection;
|
|
|
1901 rev = c->read;
|
|
|
1902
|
|
326
|
1903 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "http test reading");
|
|
276
|
1904
|
|
|
1905 #if (NGX_HAVE_KQUEUE)
|
|
|
1906
|
|
|
1907 if (ngx_event_flags & NGX_USE_KQUEUE_EVENT) {
|
|
|
1908
|
|
|
1909 if (!rev->pending_eof) {
|
|
|
1910 return;
|
|
|
1911 }
|
|
|
1912
|
|
|
1913 rev->eof = 1;
|
|
|
1914 c->error = 1;
|
|
|
1915 err = rev->kq_errno;
|
|
|
1916
|
|
|
1917 goto closed;
|
|
|
1918 }
|
|
|
1919
|
|
|
1920 #endif
|
|
|
1921
|
|
|
1922 n = recv(c->fd, buf, 1, MSG_PEEK);
|
|
|
1923
|
|
|
1924 if (n == 0) {
|
|
|
1925 rev->eof = 1;
|
|
|
1926 c->error = 1;
|
|
|
1927 err = 0;
|
|
|
1928
|
|
|
1929 goto closed;
|
|
|
1930
|
|
|
1931 } else if (n == -1) {
|
|
|
1932 err = ngx_socket_errno;
|
|
|
1933
|
|
|
1934 if (err != NGX_EAGAIN) {
|
|
|
1935 rev->eof = 1;
|
|
|
1936 c->error = 1;
|
|
|
1937
|
|
|
1938 goto closed;
|
|
|
1939 }
|
|
|
1940 }
|
|
0
|
1941
|
|
|
1942 /* aio does not call this handler */
|
|
|
1943
|
|
276
|
1944 if ((ngx_event_flags & NGX_USE_LEVEL_EVENT) && rev->active) {
|
|
|
1945
|
|
|
1946 if (ngx_del_event(rev, NGX_READ_EVENT, 0) == NGX_ERROR) {
|
|
0
|
1947 ngx_http_close_request(r, 0);
|
|
|
1948 }
|
|
|
1949 }
|
|
276
|
1950
|
|
|
1951 return;
|
|
|
1952
|
|
|
1953 closed:
|
|
|
1954
|
|
|
1955 if (err) {
|
|
|
1956 rev->error = 1;
|
|
|
1957 }
|
|
|
1958
|
|
|
1959 ngx_log_error(NGX_LOG_INFO, c->log, err,
|
|
|
1960 "client closed prematurely connection");
|
|
|
1961
|
|
286
|
1962 ngx_http_finalize_request(r, 0);
|
|
0
|
1963 }
|
|
|
1964
|
|
|
1965
|
|
50
|
1966 static void
|
|
|
1967 ngx_http_set_keepalive(ngx_http_request_t *r)
|
|
0
|
1968 {
|
|
2
|
1969 int tcp_nodelay;
|
|
0
|
1970 ngx_int_t i;
|
|
|
1971 ngx_buf_t *b, *f;
|
|
|
1972 ngx_event_t *rev, *wev;
|
|
|
1973 ngx_connection_t *c;
|
|
|
1974 ngx_http_connection_t *hc;
|
|
|
1975 ngx_http_core_srv_conf_t *cscf;
|
|
|
1976 ngx_http_core_loc_conf_t *clcf;
|
|
|
1977
|
|
|
1978 c = r->connection;
|
|
|
1979 rev = c->read;
|
|
|
1980
|
|
326
|
1981 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
1982
|
|
0
|
1983 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "set http keepalive handler");
|
|
|
1984
|
|
326
|
1985 if (r->discard_body) {
|
|
|
1986 r->lingering_time = ngx_time() + (time_t) (clcf->lingering_time / 1000);
|
|
|
1987 ngx_add_timer(rev, clcf->lingering_timeout);
|
|
|
1988 return;
|
|
|
1989 }
|
|
|
1990
|
|
32
|
1991 c->log->action = "closing request";
|
|
0
|
1992
|
|
|
1993 hc = r->http_connection;
|
|
|
1994 b = r->header_in;
|
|
|
1995
|
|
|
1996 if (b->pos < b->last) {
|
|
|
1997
|
|
|
1998 /* the pipelined request */
|
|
|
1999
|
|
|
2000 if (b != c->buffer) {
|
|
|
2001
|
|
4
|
2002 /*
|
|
|
2003 * If the large header buffers were allocated while the previous
|
|
|
2004 * request processing then we do not use c->buffer for
|
|
|
2005 * the pipelined request (see ngx_http_init_request()).
|
|
126
|
2006 *
|
|
4
|
2007 * Now we would move the large header buffers to the free list.
|
|
|
2008 */
|
|
0
|
2009
|
|
|
2010 cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
|
|
|
2011
|
|
|
2012 if (hc->free == NULL) {
|
|
|
2013 hc->free = ngx_palloc(c->pool,
|
|
|
2014 cscf->large_client_header_buffers.num * sizeof(ngx_buf_t *));
|
|
|
2015
|
|
|
2016 if (hc->free == NULL) {
|
|
26
|
2017 ngx_http_close_request(r, 0);
|
|
0
|
2018 return;
|
|
|
2019 }
|
|
|
2020 }
|
|
|
2021
|
|
|
2022 for (i = 0; i < hc->nbusy - 1; i++) {
|
|
|
2023 f = hc->busy[i];
|
|
|
2024 hc->free[hc->nfree++] = f;
|
|
|
2025 f->pos = f->start;
|
|
|
2026 f->last = f->start;
|
|
|
2027 }
|
|
|
2028
|
|
|
2029 hc->busy[0] = b;
|
|
|
2030 hc->nbusy = 1;
|
|
|
2031 }
|
|
|
2032 }
|
|
|
2033
|
|
118
|
2034 ngx_http_request_done(r, 0);
|
|
|
2035
|
|
0
|
2036 c->data = hc;
|
|
|
2037
|
|
|
2038 ngx_add_timer(rev, clcf->keepalive_timeout);
|
|
|
2039
|
|
58
|
2040 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) {
|
|
0
|
2041 ngx_http_close_connection(c);
|
|
|
2042 return;
|
|
|
2043 }
|
|
|
2044
|
|
|
2045 wev = c->write;
|
|
58
|
2046 wev->handler = ngx_http_empty_handler;
|
|
0
|
2047
|
|
|
2048 if (b->pos < b->last) {
|
|
|
2049
|
|
|
2050 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "pipelined request");
|
|
|
2051
|
|
116
|
2052 #if (NGX_STAT_STUB)
|
|
|
2053 ngx_atomic_fetch_add(ngx_stat_reading, 1);
|
|
|
2054 #endif
|
|
|
2055
|
|
0
|
2056 hc->pipeline = 1;
|
|
32
|
2057 c->log->action = "reading client pipelined request line";
|
|
116
|
2058
|
|
0
|
2059 ngx_http_init_request(rev);
|
|
|
2060 return;
|
|
|
2061 }
|
|
|
2062
|
|
|
2063 hc->pipeline = 0;
|
|
|
2064
|
|
4
|
2065 /*
|
|
|
2066 * To keep a memory footprint as small as possible for an idle
|
|
|
2067 * keepalive connection we try to free the ngx_http_request_t and
|
|
|
2068 * c->buffer's memory if they were allocated outside the c->pool.
|
|
|
2069 * The large header buffers are always allocated outside the c->pool and
|
|
|
2070 * are freed too.
|
|
|
2071 */
|
|
|
2072
|
|
0
|
2073 if (ngx_pfree(c->pool, r) == NGX_OK) {
|
|
|
2074 hc->request = NULL;
|
|
|
2075 }
|
|
|
2076
|
|
|
2077 b = c->buffer;
|
|
|
2078
|
|
|
2079 if (ngx_pfree(c->pool, b->start) == NGX_OK) {
|
|
4
|
2080
|
|
|
2081 /*
|
|
|
2082 * the special note for ngx_http_keepalive_handler() that
|
|
|
2083 * c->buffer's memory was freed
|
|
|
2084 */
|
|
|
2085
|
|
0
|
2086 b->pos = NULL;
|
|
|
2087
|
|
|
2088 } else {
|
|
|
2089 b->pos = b->start;
|
|
|
2090 b->last = b->start;
|
|
|
2091 }
|
|
|
2092
|
|
10
|
2093 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, c->log, 0, "hc free: %p %d",
|
|
0
|
2094 hc->free, hc->nfree);
|
|
|
2095
|
|
|
2096 if (hc->free) {
|
|
|
2097 for (i = 0; i < hc->nfree; i++) {
|
|
|
2098 ngx_pfree(c->pool, hc->free[i]);
|
|
|
2099 hc->free[i] = NULL;
|
|
|
2100 }
|
|
|
2101
|
|
|
2102 hc->nfree = 0;
|
|
|
2103 }
|
|
|
2104
|
|
10
|
2105 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, c->log, 0, "hc busy: %p %d",
|
|
0
|
2106 hc->busy, hc->nbusy);
|
|
|
2107
|
|
|
2108 if (hc->busy) {
|
|
|
2109 for (i = 0; i < hc->nbusy; i++) {
|
|
|
2110 ngx_pfree(c->pool, hc->busy[i]);
|
|
|
2111 hc->busy[i] = NULL;
|
|
|
2112 }
|
|
|
2113
|
|
|
2114 hc->nbusy = 0;
|
|
|
2115 }
|
|
|
2116
|
|
58
|
2117 rev->handler = ngx_http_keepalive_handler;
|
|
0
|
2118
|
|
132
|
2119 if (wev->active && (ngx_event_flags & NGX_USE_LEVEL_EVENT)) {
|
|
|
2120 if (ngx_del_event(wev, NGX_WRITE_EVENT, 0) == NGX_ERROR) {
|
|
|
2121 ngx_http_close_connection(c);
|
|
|
2122 return;
|
|
0
|
2123 }
|
|
|
2124 }
|
|
|
2125
|
|
32
|
2126 c->log->action = "keepalive";
|
|
0
|
2127
|
|
|
2128 if (c->tcp_nopush == NGX_TCP_NOPUSH_SET) {
|
|
50
|
2129 if (ngx_tcp_push(c->fd) == -1) {
|
|
0
|
2130 ngx_connection_error(c, ngx_socket_errno, ngx_tcp_push_n " failed");
|
|
|
2131 ngx_http_close_connection(c);
|
|
|
2132 return;
|
|
|
2133 }
|
|
2
|
2134
|
|
0
|
2135 c->tcp_nopush = NGX_TCP_NOPUSH_UNSET;
|
|
22
|
2136 tcp_nodelay = ngx_tcp_nodelay_and_tcp_nopush ? 1 : 0;
|
|
2
|
2137
|
|
|
2138 } else {
|
|
22
|
2139 tcp_nodelay = 1;
|
|
|
2140 }
|
|
|
2141
|
|
32
|
2142 if (tcp_nodelay
|
|
|
2143 && clcf->tcp_nodelay
|
|
|
2144 && c->tcp_nodelay == NGX_TCP_NODELAY_UNSET)
|
|
|
2145 {
|
|
22
|
2146 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "tcp_nodelay");
|
|
|
2147
|
|
|
2148 if (setsockopt(c->fd, IPPROTO_TCP, TCP_NODELAY,
|
|
184
|
2149 (const void *) &tcp_nodelay, sizeof(int))
|
|
|
2150 == -1)
|
|
22
|
2151 {
|
|
|
2152 ngx_connection_error(c, ngx_socket_errno,
|
|
|
2153 "setsockopt(TCP_NODELAY) failed");
|
|
|
2154 ngx_http_close_connection(c);
|
|
|
2155 return;
|
|
2
|
2156 }
|
|
22
|
2157
|
|
32
|
2158 c->tcp_nodelay = NGX_TCP_NODELAY_SET;
|
|
0
|
2159 }
|
|
|
2160
|
|
|
2161 #if 0
|
|
4
|
2162 /* if ngx_http_request_t was freed then we need some other place */
|
|
0
|
2163 r->http_state = NGX_HTTP_KEEPALIVE_STATE;
|
|
|
2164 #endif
|
|
|
2165
|
|
290
|
2166 c->idle = 1;
|
|
|
2167
|
|
0
|
2168 if (rev->ready) {
|
|
|
2169 ngx_http_keepalive_handler(rev);
|
|
|
2170 }
|
|
|
2171 }
|
|
|
2172
|
|
|
2173
|
|
50
|
2174 static void
|
|
|
2175 ngx_http_keepalive_handler(ngx_event_t *rev)
|
|
0
|
2176 {
|
|
50
|
2177 size_t size;
|
|
|
2178 ssize_t n;
|
|
|
2179 ngx_buf_t *b;
|
|
|
2180 ngx_connection_t *c;
|
|
0
|
2181
|
|
|
2182 c = rev->data;
|
|
|
2183
|
|
|
2184 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "http keepalive handler");
|
|
|
2185
|
|
290
|
2186 if (rev->timedout || c->close) {
|
|
0
|
2187 ngx_http_close_connection(c);
|
|
|
2188 return;
|
|
|
2189 }
|
|
|
2190
|
|
18
|
2191 #if (NGX_HAVE_KQUEUE)
|
|
0
|
2192
|
|
4
|
2193 if (ngx_event_flags & NGX_USE_KQUEUE_EVENT) {
|
|
136
|
2194 if (rev->pending_eof) {
|
|
32
|
2195 c->log->handler = NULL;
|
|
0
|
2196 ngx_log_error(NGX_LOG_INFO, c->log, rev->kq_errno,
|
|
10
|
2197 "kevent() reported that client %V closed "
|
|
32
|
2198 "keepalive connection", &c->addr_text);
|
|
22
|
2199 #if (NGX_HTTP_SSL)
|
|
|
2200 if (c->ssl) {
|
|
96
|
2201 c->ssl->no_send_shutdown = 1;
|
|
22
|
2202 }
|
|
|
2203 #endif
|
|
0
|
2204 ngx_http_close_connection(c);
|
|
|
2205 return;
|
|
|
2206 }
|
|
|
2207 }
|
|
|
2208
|
|
|
2209 #endif
|
|
|
2210
|
|
|
2211 b = c->buffer;
|
|
|
2212 size = b->end - b->start;
|
|
|
2213
|
|
|
2214 if (b->pos == NULL) {
|
|
4
|
2215
|
|
|
2216 /*
|
|
|
2217 * The c->buffer's memory was freed by ngx_http_set_keepalive().
|
|
|
2218 * However, the c->buffer->start and c->buffer->end were not changed
|
|
|
2219 * to keep the buffer size.
|
|
|
2220 */
|
|
|
2221
|
|
50
|
2222 b->pos = ngx_palloc(c->pool, size);
|
|
|
2223 if (b->pos == NULL) {
|
|
0
|
2224 ngx_http_close_connection(c);
|
|
|
2225 return;
|
|
|
2226 }
|
|
|
2227
|
|
|
2228 b->start = b->pos;
|
|
|
2229 b->last = b->pos;
|
|
|
2230 b->end = b->pos + size;
|
|
|
2231 }
|
|
|
2232
|
|
|
2233 /*
|
|
|
2234 * MSIE closes a keepalive connection with RST flag
|
|
|
2235 * so we ignore ECONNRESET here.
|
|
|
2236 */
|
|
|
2237
|
|
|
2238 c->log_error = NGX_ERROR_IGNORE_ECONNRESET;
|
|
|
2239 ngx_set_socket_errno(0);
|
|
|
2240
|
|
|
2241 n = c->recv(c, b->last, size);
|
|
|
2242 c->log_error = NGX_ERROR_INFO;
|
|
|
2243
|
|
|
2244 if (n == NGX_AGAIN) {
|
|
58
|
2245 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) {
|
|
24
|
2246 ngx_http_close_connection(c);
|
|
|
2247 }
|
|
|
2248
|
|
0
|
2249 return;
|
|
|
2250 }
|
|
|
2251
|
|
|
2252 if (n == NGX_ERROR) {
|
|
|
2253 ngx_http_close_connection(c);
|
|
|
2254 return;
|
|
|
2255 }
|
|
|
2256
|
|
32
|
2257 c->log->handler = NULL;
|
|
0
|
2258
|
|
|
2259 if (n == 0) {
|
|
|
2260 ngx_log_error(NGX_LOG_INFO, c->log, ngx_socket_errno,
|
|
32
|
2261 "client %V closed keepalive connection", &c->addr_text);
|
|
0
|
2262 ngx_http_close_connection(c);
|
|
|
2263 return;
|
|
|
2264 }
|
|
|
2265
|
|
|
2266 b->last += n;
|
|
32
|
2267
|
|
116
|
2268 #if (NGX_STAT_STUB)
|
|
|
2269 ngx_atomic_fetch_add(ngx_stat_reading, 1);
|
|
|
2270 #endif
|
|
|
2271
|
|
32
|
2272 c->log->handler = ngx_http_log_error;
|
|
|
2273 c->log->action = "reading client request line";
|
|
0
|
2274
|
|
290
|
2275 c->idle = 0;
|
|
|
2276
|
|
0
|
2277 ngx_http_init_request(rev);
|
|
|
2278 }
|
|
|
2279
|
|
|
2280
|
|
50
|
2281 static void
|
|
|
2282 ngx_http_set_lingering_close(ngx_http_request_t *r)
|
|
126
|
2283 {
|
|
0
|
2284 ngx_event_t *rev, *wev;
|
|
|
2285 ngx_connection_t *c;
|
|
|
2286 ngx_http_core_loc_conf_t *clcf;
|
|
|
2287
|
|
|
2288 c = r->connection;
|
|
|
2289
|
|
|
2290 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
2291
|
|
|
2292 rev = c->read;
|
|
58
|
2293 rev->handler = ngx_http_lingering_close_handler;
|
|
0
|
2294
|
|
106
|
2295 r->lingering_time = ngx_time() + (time_t) (clcf->lingering_time / 1000);
|
|
0
|
2296 ngx_add_timer(rev, clcf->lingering_timeout);
|
|
|
2297
|
|
58
|
2298 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) {
|
|
0
|
2299 ngx_http_close_request(r, 0);
|
|
|
2300 return;
|
|
|
2301 }
|
|
|
2302
|
|
|
2303 wev = c->write;
|
|
58
|
2304 wev->handler = ngx_http_empty_handler;
|
|
0
|
2305
|
|
132
|
2306 if (wev->active && (ngx_event_flags & NGX_USE_LEVEL_EVENT)) {
|
|
|
2307 if (ngx_del_event(wev, NGX_WRITE_EVENT, 0) == NGX_ERROR) {
|
|
|
2308 ngx_http_close_request(r, 0);
|
|
|
2309 return;
|
|
0
|
2310 }
|
|
|
2311 }
|
|
|
2312
|
|
|
2313 if (ngx_shutdown_socket(c->fd, NGX_WRITE_SHUTDOWN) == -1) {
|
|
|
2314 ngx_connection_error(c, ngx_socket_errno,
|
|
|
2315 ngx_shutdown_socket_n " failed");
|
|
|
2316 ngx_http_close_request(r, 0);
|
|
|
2317 return;
|
|
|
2318 }
|
|
|
2319
|
|
|
2320 if (rev->ready) {
|
|
|
2321 ngx_http_lingering_close_handler(rev);
|
|
|
2322 }
|
|
|
2323 }
|
|
|
2324
|
|
|
2325
|
|
50
|
2326 static void
|
|
|
2327 ngx_http_lingering_close_handler(ngx_event_t *rev)
|
|
0
|
2328 {
|
|
|
2329 ssize_t n;
|
|
|
2330 ngx_msec_t timer;
|
|
|
2331 ngx_connection_t *c;
|
|
|
2332 ngx_http_request_t *r;
|
|
|
2333 ngx_http_core_loc_conf_t *clcf;
|
|
|
2334 u_char buffer[NGX_HTTP_LINGERING_BUFFER_SIZE];
|
|
|
2335
|
|
|
2336 c = rev->data;
|
|
|
2337 r = c->data;
|
|
|
2338
|
|
|
2339 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
|
2340 "http lingering close handler");
|
|
|
2341
|
|
|
2342 if (rev->timedout) {
|
|
126
|
2343 c->timedout = 1;
|
|
0
|
2344 ngx_http_close_request(r, 0);
|
|
|
2345 return;
|
|
|
2346 }
|
|
|
2347
|
|
346
|
2348 timer = (ngx_msec_t) (r->lingering_time - ngx_time());
|
|
0
|
2349 if (timer <= 0) {
|
|
|
2350 ngx_http_close_request(r, 0);
|
|
|
2351 return;
|
|
|
2352 }
|
|
|
2353
|
|
|
2354 do {
|
|
|
2355 n = c->recv(c, buffer, NGX_HTTP_LINGERING_BUFFER_SIZE);
|
|
|
2356
|
|
|
2357 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0, "lingering read: %d", n);
|
|
|
2358
|
|
|
2359 if (n == NGX_ERROR || n == 0) {
|
|
|
2360 ngx_http_close_request(r, 0);
|
|
|
2361 return;
|
|
|
2362 }
|
|
|
2363
|
|
|
2364 } while (rev->ready);
|
|
|
2365
|
|
58
|
2366 if (ngx_handle_read_event(rev, 0) == NGX_ERROR) {
|
|
26
|
2367 ngx_http_close_request(r, 0);
|
|
24
|
2368 return;
|
|
|
2369 }
|
|
|
2370
|
|
0
|
2371 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
2372
|
|
|
2373 timer *= 1000;
|
|
|
2374
|
|
|
2375 if (timer > clcf->lingering_timeout) {
|
|
|
2376 timer = clcf->lingering_timeout;
|
|
|
2377 }
|
|
|
2378
|
|
|
2379 ngx_add_timer(rev, timer);
|
|
|
2380 }
|
|
|
2381
|
|
|
2382
|
|
50
|
2383 void
|
|
|
2384 ngx_http_empty_handler(ngx_event_t *wev)
|
|
0
|
2385 {
|
|
|
2386 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, wev->log, 0, "http empty handler");
|
|
|
2387
|
|
|
2388 return;
|
|
|
2389 }
|
|
|
2390
|
|
|
2391
|
|
58
|
2392 void
|
|
|
2393 ngx_http_request_empty_handler(ngx_http_request_t *r)
|
|
|
2394 {
|
|
|
2395 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
132
|
2396 "http request empty handler");
|
|
58
|
2397
|
|
|
2398 return;
|
|
|
2399 }
|
|
|
2400
|
|
|
2401
|
|
50
|
2402 ngx_int_t
|
|
130
|
2403 ngx_http_send_special(ngx_http_request_t *r, ngx_uint_t flags)
|
|
0
|
2404 {
|
|
|
2405 ngx_buf_t *b;
|
|
|
2406 ngx_chain_t out;
|
|
|
2407
|
|
50
|
2408 b = ngx_calloc_buf(r->pool);
|
|
|
2409 if (b == NULL) {
|
|
0
|
2410 return NGX_ERROR;
|
|
|
2411 }
|
|
|
2412
|
|
130
|
2413 if (flags & NGX_HTTP_LAST) {
|
|
|
2414 b->last_buf = 1;
|
|
|
2415 }
|
|
|
2416
|
|
|
2417 if (flags & NGX_HTTP_FLUSH) {
|
|
|
2418 b->flush = 1;
|
|
|
2419 }
|
|
|
2420
|
|
0
|
2421 out.buf = b;
|
|
|
2422 out.next = NULL;
|
|
|
2423
|
|
|
2424 return ngx_http_output_filter(r, &out);
|
|
|
2425 }
|
|
|
2426
|
|
|
2427
|
|
162
|
2428 static ngx_int_t
|
|
|
2429 ngx_http_post_action(ngx_http_request_t *r)
|
|
|
2430 {
|
|
|
2431 ngx_http_core_loc_conf_t *clcf;
|
|
|
2432
|
|
|
2433 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
2434
|
|
|
2435 if (clcf->post_action.data == NULL) {
|
|
|
2436 return NGX_DECLINED;
|
|
|
2437 }
|
|
|
2438
|
|
172
|
2439 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
|
2440 "post action: \"%V\"", &clcf->post_action);
|
|
|
2441
|
|
162
|
2442 r->http_version = NGX_HTTP_VERSION_9;
|
|
|
2443 r->header_only = 1;
|
|
178
|
2444 r->post_action = 1;
|
|
162
|
2445
|
|
326
|
2446 r->read_event_handler = ngx_http_block_reading;
|
|
262
|
2447
|
|
162
|
2448 ngx_http_internal_redirect(r, &clcf->post_action, NULL);
|
|
|
2449
|
|
|
2450 return NGX_OK;
|
|
|
2451 }
|
|
|
2452
|
|
|
2453
|
|
|
2454 static void
|
|
58
|
2455 ngx_http_close_request(ngx_http_request_t *r, ngx_int_t error)
|
|
0
|
2456 {
|
|
188
|
2457 ngx_connection_t *c;
|
|
118
|
2458
|
|
|
2459 c = r->connection;
|
|
188
|
2460
|
|
|
2461 ngx_http_request_done(r->main, error);
|
|
118
|
2462 ngx_http_close_connection(c);
|
|
|
2463 }
|
|
|
2464
|
|
|
2465
|
|
162
|
2466 static void
|
|
118
|
2467 ngx_http_request_done(ngx_http_request_t *r, ngx_int_t error)
|
|
|
2468 {
|
|
|
2469 ngx_log_t *log;
|
|
130
|
2470 ngx_uint_t i, n;
|
|
118
|
2471 struct linger linger;
|
|
188
|
2472 ngx_http_cleanup_t *cln;
|
|
118
|
2473 ngx_http_log_ctx_t *ctx;
|
|
130
|
2474 ngx_http_handler_pt *log_handler;
|
|
118
|
2475 ngx_http_core_loc_conf_t *clcf;
|
|
|
2476 ngx_http_core_main_conf_t *cmcf;
|
|
0
|
2477
|
|
|
2478 log = r->connection->log;
|
|
|
2479
|
|
|
2480 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, log, 0, "http close request");
|
|
|
2481
|
|
|
2482 if (r->pool == NULL) {
|
|
80
|
2483 ngx_log_error(NGX_LOG_ALERT, log, 0, "http request already closed");
|
|
0
|
2484 return;
|
|
|
2485 }
|
|
|
2486
|
|
188
|
2487 for (cln = r->cleanup; cln; cln = cln->next) {
|
|
|
2488 if (cln->handler) {
|
|
|
2489 cln->handler(cln->data);
|
|
|
2490 }
|
|
|
2491 }
|
|
|
2492
|
|
0
|
2493 #if (NGX_STAT_STUB)
|
|
116
|
2494
|
|
0
|
2495 if (r->stat_reading) {
|
|
110
|
2496 ngx_atomic_fetch_add(ngx_stat_reading, -1);
|
|
0
|
2497 }
|
|
|
2498
|
|
|
2499 if (r->stat_writing) {
|
|
110
|
2500 ngx_atomic_fetch_add(ngx_stat_writing, -1);
|
|
0
|
2501 }
|
|
116
|
2502
|
|
0
|
2503 #endif
|
|
|
2504
|
|
|
2505 if (error && r->headers_out.status == 0) {
|
|
|
2506 r->headers_out.status = error;
|
|
|
2507 }
|
|
|
2508
|
|
118
|
2509 cmcf = ngx_http_get_module_main_conf(r, ngx_http_core_module);
|
|
|
2510
|
|
130
|
2511 log_handler = cmcf->phases[NGX_HTTP_LOG_PHASE].handlers.elts;
|
|
|
2512 n = cmcf->phases[NGX_HTTP_LOG_PHASE].handlers.nelts;
|
|
|
2513 for (i = 0; i < n; i++) {
|
|
|
2514 log_handler[i](r);
|
|
118
|
2515 }
|
|
0
|
2516
|
|
|
2517 if (r->connection->timedout) {
|
|
|
2518 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
2519
|
|
|
2520 if (clcf->reset_timedout_connection) {
|
|
58
|
2521 linger.l_onoff = 1;
|
|
|
2522 linger.l_linger = 0;
|
|
0
|
2523
|
|
|
2524 if (setsockopt(r->connection->fd, SOL_SOCKET, SO_LINGER,
|
|
58
|
2525 (const void *) &linger, sizeof(struct linger)) == -1)
|
|
0
|
2526 {
|
|
|
2527 ngx_log_error(NGX_LOG_ALERT, log, ngx_socket_errno,
|
|
|
2528 "setsockopt(SO_LINGER) failed");
|
|
|
2529 }
|
|
|
2530 }
|
|
|
2531 }
|
|
|
2532
|
|
58
|
2533 /* the various request strings were allocated from r->pool */
|
|
0
|
2534 ctx = log->data;
|
|
10
|
2535 ctx->request = NULL;
|
|
0
|
2536
|
|
|
2537 r->request_line.len = 0;
|
|
|
2538
|
|
132
|
2539 r->connection->destroyed = 1;
|
|
|
2540
|
|
0
|
2541 ngx_destroy_pool(r->pool);
|
|
|
2542 }
|
|
|
2543
|
|
|
2544
|
|
80
|
2545 static void
|
|
50
|
2546 ngx_http_close_connection(ngx_connection_t *c)
|
|
0
|
2547 {
|
|
28
|
2548 ngx_pool_t *pool;
|
|
|
2549
|
|
0
|
2550 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
|
|
|
2551 "close http connection: %d", c->fd);
|
|
|
2552
|
|
88
|
2553 #if (NGX_HTTP_SSL)
|
|
2
|
2554
|
|
|
2555 if (c->ssl) {
|
|
|
2556 if (ngx_ssl_shutdown(c) == NGX_AGAIN) {
|
|
126
|
2557 c->ssl->handler = ngx_http_close_connection;
|
|
2
|
2558 return;
|
|
|
2559 }
|
|
|
2560 }
|
|
|
2561
|
|
|
2562 #endif
|
|
|
2563
|
|
0
|
2564 #if (NGX_STAT_STUB)
|
|
110
|
2565 ngx_atomic_fetch_add(ngx_stat_active, -1);
|
|
0
|
2566 #endif
|
|
|
2567
|
|
132
|
2568 c->destroyed = 1;
|
|
|
2569
|
|
28
|
2570 pool = c->pool;
|
|
|
2571
|
|
0
|
2572 ngx_close_connection(c);
|
|
28
|
2573
|
|
50
|
2574 ngx_destroy_pool(pool);
|
|
0
|
2575 }
|
|
|
2576
|
|
|
2577
|
|
50
|
2578 static u_char *
|
|
|
2579 ngx_http_log_error(ngx_log_t *log, u_char *buf, size_t len)
|
|
0
|
2580 {
|
|
32
|
2581 u_char *p;
|
|
54
|
2582 ngx_http_request_t *r;
|
|
32
|
2583 ngx_http_log_ctx_t *ctx;
|
|
10
|
2584
|
|
32
|
2585 if (log->action) {
|
|
58
|
2586 p = ngx_snprintf(buf, len, " while %s", log->action);
|
|
10
|
2587 len -= p - buf;
|
|
54
|
2588 buf = p;
|
|
10
|
2589 }
|
|
|
2590
|
|
58
|
2591 ctx = log->data;
|
|
|
2592
|
|
54
|
2593 p = ngx_snprintf(buf, len, ", client: %V", ctx->client);
|
|
58
|
2594 len -= p - buf;
|
|
54
|
2595
|
|
|
2596 r = ctx->request;
|
|
|
2597
|
|
58
|
2598 if (r) {
|
|
214
|
2599 return r->log_handler(r, ctx->current_request, p, len);
|
|
0
|
2600 }
|
|
10
|
2601
|
|
58
|
2602 return p;
|
|
|
2603 }
|
|
|
2604
|
|
|
2605
|
|
|
2606 static u_char *
|
|
214
|
2607 ngx_http_log_error_handler(ngx_http_request_t *r, ngx_http_request_t *sr,
|
|
|
2608 u_char *buf, size_t len)
|
|
58
|
2609 {
|
|
260
|
2610 char *uri_separator;
|
|
|
2611 u_char *p;
|
|
|
2612 ngx_http_upstream_t *u;
|
|
54
|
2613
|
|
|
2614 if (r->server_name.data) {
|
|
|
2615 p = ngx_snprintf(buf, len, ", server: %V", &r->server_name);
|
|
52
|
2616 len -= p - buf;
|
|
54
|
2617 buf = p;
|
|
52
|
2618 }
|
|
|
2619
|
|
348
|
2620 if (r->request_line.data == NULL && r->request_start) {
|
|
|
2621 for (p = r->request_start; p < r->header_in->last; p++) {
|
|
|
2622 if (*p == CR || *p == LF) {
|
|
|
2623 break;
|
|
|
2624 }
|
|
|
2625 }
|
|
|
2626
|
|
|
2627 r->request_line.len = p - r->request_start;
|
|
|
2628 r->request_line.data = r->request_start;
|
|
|
2629 }
|
|
|
2630
|
|
|
2631 if (r->request_line.len) {
|
|
|
2632 p = ngx_snprintf(buf, len, ", request: \"%V\"", &r->request_line);
|
|
54
|
2633 len -= p - buf;
|
|
|
2634 buf = p;
|
|
10
|
2635 }
|
|
|
2636
|
|
214
|
2637 if (r != sr) {
|
|
|
2638 p = ngx_snprintf(buf, len, ", subrequest: \"%V\"", &sr->uri);
|
|
|
2639 len -= p - buf;
|
|
|
2640 buf = p;
|
|
|
2641 }
|
|
|
2642
|
|
|
2643 u = sr->upstream;
|
|
|
2644
|
|
260
|
2645 if (u && u->peer.name) {
|
|
|
2646
|
|
|
2647 uri_separator = "";
|
|
|
2648
|
|
|
2649 #if (NGX_HAVE_UNIX_DOMAIN)
|
|
|
2650 if (u->peer.sockaddr && u->peer.sockaddr->sa_family == AF_UNIX) {
|
|
|
2651 uri_separator = ":";
|
|
|
2652 }
|
|
|
2653 #endif
|
|
214
|
2654
|
|
|
2655 p = ngx_snprintf(buf, len, ", upstream: \"%V%V%s%V\"",
|
|
348
|
2656 &u->schema, u->peer.name,
|
|
260
|
2657 uri_separator, &u->uri);
|
|
214
|
2658 len -= p - buf;
|
|
|
2659 buf = p;
|
|
|
2660 }
|
|
|
2661
|
|
54
|
2662 if (r->headers_in.host) {
|
|
|
2663 p = ngx_snprintf(buf, len, ", host: \"%V\"",
|
|
|
2664 &r->headers_in.host->value);
|
|
|
2665 len -= p - buf;
|
|
|
2666 buf = p;
|
|
|
2667 }
|
|
|
2668
|
|
|
2669 if (r->headers_in.referer) {
|
|
|
2670 p = ngx_snprintf(buf, len, ", referrer: \"%V\"",
|
|
|
2671 &r->headers_in.referer->value);
|
|
|
2672 buf = p;
|
|
|
2673 }
|
|
|
2674
|
|
|
2675 return buf;
|
|
|
2676 }
|
