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