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