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  src/http/ngx_http_request.c - nginx-1.7.10
 Global variables defined
 
 Functions defined
 
 Source code
  
 
 
 
- #include <ngx_config.h>
 
- #include <ngx_core.h>
 
- #include <ngx_http.h>
 
 
 
- static void ngx_http_wait_request_handler(ngx_event_t *ev);
 
- static void ngx_http_process_request_line(ngx_event_t *rev);
 
- static void ngx_http_process_request_headers(ngx_event_t *rev);
 
- static ssize_t ngx_http_read_request_header(ngx_http_request_t *r);
 
- static ngx_int_t ngx_http_alloc_large_header_buffer(ngx_http_request_t *r,
 
-     ngx_uint_t request_line);
 
 
- static ngx_int_t ngx_http_process_header_line(ngx_http_request_t *r,
 
-     ngx_table_elt_t *h, ngx_uint_t offset);
 
- static ngx_int_t ngx_http_process_unique_header_line(ngx_http_request_t *r,
 
-     ngx_table_elt_t *h, ngx_uint_t offset);
 
- static ngx_int_t ngx_http_process_multi_header_lines(ngx_http_request_t *r,
 
-     ngx_table_elt_t *h, ngx_uint_t offset);
 
- static ngx_int_t ngx_http_process_host(ngx_http_request_t *r,
 
-     ngx_table_elt_t *h, ngx_uint_t offset);
 
- static ngx_int_t ngx_http_process_connection(ngx_http_request_t *r,
 
-     ngx_table_elt_t *h, ngx_uint_t offset);
 
- static ngx_int_t ngx_http_process_user_agent(ngx_http_request_t *r,
 
-     ngx_table_elt_t *h, ngx_uint_t offset);
 
 
- static ngx_int_t ngx_http_validate_host(ngx_str_t *host, ngx_pool_t *pool,
 
-     ngx_uint_t alloc);
 
- static ngx_int_t ngx_http_set_virtual_server(ngx_http_request_t *r,
 
-     ngx_str_t *host);
 
- static ngx_int_t ngx_http_find_virtual_server(ngx_connection_t *c,
 
-     ngx_http_virtual_names_t *virtual_names, ngx_str_t *host,
 
-     ngx_http_request_t *r, ngx_http_core_srv_conf_t **cscfp);
 
 
- static void ngx_http_request_handler(ngx_event_t *ev);
 
- static void ngx_http_terminate_request(ngx_http_request_t *r, ngx_int_t rc);
 
- static void ngx_http_terminate_handler(ngx_http_request_t *r);
 
- static void ngx_http_finalize_connection(ngx_http_request_t *r);
 
- static ngx_int_t ngx_http_set_write_handler(ngx_http_request_t *r);
 
- static void ngx_http_writer(ngx_http_request_t *r);
 
- static void ngx_http_request_finalizer(ngx_http_request_t *r);
 
 
- static void ngx_http_set_keepalive(ngx_http_request_t *r);
 
- static void ngx_http_keepalive_handler(ngx_event_t *ev);
 
- static void ngx_http_set_lingering_close(ngx_http_request_t *r);
 
- static void ngx_http_lingering_close_handler(ngx_event_t *ev);
 
- static ngx_int_t ngx_http_post_action(ngx_http_request_t *r);
 
- static void ngx_http_close_request(ngx_http_request_t *r, ngx_int_t error);
 
- static void ngx_http_log_request(ngx_http_request_t *r);
 
 
- static u_char *ngx_http_log_error(ngx_log_t *log, u_char *buf, size_t len);
 
- static u_char *ngx_http_log_error_handler(ngx_http_request_t *r,
 
-     ngx_http_request_t *sr, u_char *buf, size_t len);
 
 
- #if (NGX_HTTP_SSL)
 
- static void ngx_http_ssl_handshake(ngx_event_t *rev);
 
- static void ngx_http_ssl_handshake_handler(ngx_connection_t *c);
 
- #endif
 
 
 
- static char *ngx_http_client_errors[] = {
 
 
-     
 
-     "client sent invalid method",
 
 
-     
 
-     "client sent invalid request",
 
 
-     
 
-     "client sent invalid method in HTTP/0.9 request"
 
- };
 
 
 
- ngx_http_header_t  ngx_http_headers_in[] = {
 
-     { ngx_string("Host"), offsetof(ngx_http_headers_in_t, host),
 
-                  ngx_http_process_host },
 
 
-     { ngx_string("Connection"), offsetof(ngx_http_headers_in_t, connection),
 
-                  ngx_http_process_connection },
 
 
-     { ngx_string("If-Modified-Since"),
 
-                  offsetof(ngx_http_headers_in_t, if_modified_since),
 
-                  ngx_http_process_unique_header_line },
 
 
-     { ngx_string("If-Unmodified-Since"),
 
-                  offsetof(ngx_http_headers_in_t, if_unmodified_since),
 
-                  ngx_http_process_unique_header_line },
 
 
-     { ngx_string("If-Match"),
 
-                  offsetof(ngx_http_headers_in_t, if_match),
 
-                  ngx_http_process_unique_header_line },
 
 
-     { ngx_string("If-None-Match"),
 
-                  offsetof(ngx_http_headers_in_t, if_none_match),
 
-                  ngx_http_process_unique_header_line },
 
 
-     { ngx_string("User-Agent"), offsetof(ngx_http_headers_in_t, user_agent),
 
-                  ngx_http_process_user_agent },
 
 
-     { ngx_string("Referer"), offsetof(ngx_http_headers_in_t, referer),
 
-                  ngx_http_process_header_line },
 
 
-     { ngx_string("Content-Length"),
 
-                  offsetof(ngx_http_headers_in_t, content_length),
 
-                  ngx_http_process_unique_header_line },
 
 
-     { ngx_string("Content-Type"),
 
-                  offsetof(ngx_http_headers_in_t, content_type),
 
-                  ngx_http_process_header_line },
 
 
-     { ngx_string("Range"), offsetof(ngx_http_headers_in_t, range),
 
-                  ngx_http_process_header_line },
 
 
-     { ngx_string("If-Range"),
 
-                  offsetof(ngx_http_headers_in_t, if_range),
 
-                  ngx_http_process_unique_header_line },
 
 
-     { ngx_string("Transfer-Encoding"),
 
-                  offsetof(ngx_http_headers_in_t, transfer_encoding),
 
-                  ngx_http_process_header_line },
 
 
-     { ngx_string("Expect"),
 
-                  offsetof(ngx_http_headers_in_t, expect),
 
-                  ngx_http_process_unique_header_line },
 
 
-     { ngx_string("Upgrade"),
 
-                  offsetof(ngx_http_headers_in_t, upgrade),
 
-                  ngx_http_process_header_line },
 
 
- #if (NGX_HTTP_GZIP)
 
-     { ngx_string("Accept-Encoding"),
 
-                  offsetof(ngx_http_headers_in_t, accept_encoding),
 
-                  ngx_http_process_header_line },
 
 
-     { ngx_string("Via"), offsetof(ngx_http_headers_in_t, via),
 
-                  ngx_http_process_header_line },
 
- #endif
 
 
-     { ngx_string("Authorization"),
 
-                  offsetof(ngx_http_headers_in_t, authorization),
 
-                  ngx_http_process_unique_header_line },
 
 
-     { ngx_string("Keep-Alive"), offsetof(ngx_http_headers_in_t, keep_alive),
 
-                  ngx_http_process_header_line },
 
 
- #if (NGX_HTTP_X_FORWARDED_FOR)
 
-     { ngx_string("X-Forwarded-For"),
 
-                  offsetof(ngx_http_headers_in_t, x_forwarded_for),
 
-                  ngx_http_process_multi_header_lines },
 
- #endif
 
 
- #if (NGX_HTTP_REALIP)
 
-     { ngx_string("X-Real-IP"),
 
-                  offsetof(ngx_http_headers_in_t, x_real_ip),
 
-                  ngx_http_process_header_line },
 
- #endif
 
 
- #if (NGX_HTTP_HEADERS)
 
-     { ngx_string("Accept"), offsetof(ngx_http_headers_in_t, accept),
 
-                  ngx_http_process_header_line },
 
 
-     { ngx_string("Accept-Language"),
 
-                  offsetof(ngx_http_headers_in_t, accept_language),
 
-                  ngx_http_process_header_line },
 
- #endif
 
 
- #if (NGX_HTTP_DAV)
 
-     { ngx_string("Depth"), offsetof(ngx_http_headers_in_t, depth),
 
-                  ngx_http_process_header_line },
 
 
-     { ngx_string("Destination"), offsetof(ngx_http_headers_in_t, destination),
 
-                  ngx_http_process_header_line },
 
 
-     { ngx_string("Overwrite"), offsetof(ngx_http_headers_in_t, overwrite),
 
-                  ngx_http_process_header_line },
 
 
-     { ngx_string("Date"), offsetof(ngx_http_headers_in_t, date),
 
-                  ngx_http_process_header_line },
 
- #endif
 
 
-     { ngx_string("Cookie"), offsetof(ngx_http_headers_in_t, cookies),
 
-                  ngx_http_process_multi_header_lines },
 
 
-     { ngx_null_string, 0, NULL }
 
- };
 
 
 
- void
 
- ngx_http_init_connection(ngx_connection_t *c)
 
- {
 
-     ngx_uint_t              i;
 
-     ngx_event_t            *rev;
 
-     struct sockaddr_in     *sin;
 
-     ngx_http_port_t        *port;
 
-     ngx_http_in_addr_t     *addr;
 
-     ngx_http_log_ctx_t     *ctx;
 
-     ngx_http_connection_t  *hc;
 
- #if (NGX_HAVE_INET6)
 
-     struct sockaddr_in6    *sin6;
 
-     ngx_http_in6_addr_t    *addr6;
 
- #endif
 
 
-     hc = ngx_pcalloc(c->pool, sizeof(ngx_http_connection_t));
 
-     if (hc == NULL) {
 
-         ngx_http_close_connection(c);
 
-         return;
 
-     }
 
 
-     c->data = hc;
 
 
-     
 
 
-     port = c->listening->servers;
 
 
-     if (port->naddrs > 1) {
 
 
-         
 
 
-         if (ngx_connection_local_sockaddr(c, NULL, 0) != NGX_OK) {
 
-             ngx_http_close_connection(c);
 
-             return;
 
-         }
 
 
-         switch (c->local_sockaddr->sa_family) {
 
 
- #if (NGX_HAVE_INET6)
 
-         case AF_INET6:
 
-             sin6 = (struct sockaddr_in6 *) c->local_sockaddr;
 
 
-             addr6 = port->addrs;
 
 
-             
 
 
-             for (i = 0; i < port->naddrs - 1; i++) {
 
-                 if (ngx_memcmp(&addr6[i].addr6, &sin6->sin6_addr, 16) == 0) {
 
-                     break;
 
-                 }
 
-             }
 
 
-             hc->addr_conf = &addr6[i].conf;
 
 
-             break;
 
- #endif
 
 
-         default: 
 
-             sin = (struct sockaddr_in *) c->local_sockaddr;
 
 
-             addr = port->addrs;
 
 
-             
 
 
-             for (i = 0; i < port->naddrs - 1; i++) {
 
-                 if (addr[i].addr == sin->sin_addr.s_addr) {
 
-                     break;
 
-                 }
 
-             }
 
 
-             hc->addr_conf = &addr[i].conf;
 
 
-             break;
 
-         }
 
 
-     } else {
 
 
-         switch (c->local_sockaddr->sa_family) {
 
 
- #if (NGX_HAVE_INET6)
 
-         case AF_INET6:
 
-             addr6 = port->addrs;
 
-             hc->addr_conf = &addr6[0].conf;
 
-             break;
 
- #endif
 
 
-         default: 
 
-             addr = port->addrs;
 
-             hc->addr_conf = &addr[0].conf;
 
-             break;
 
-         }
 
-     }
 
 
-     
 
-     hc->conf_ctx = hc->addr_conf->default_server->ctx;
 
 
-     ctx = ngx_palloc(c->pool, sizeof(ngx_http_log_ctx_t));
 
-     if (ctx == NULL) {
 
-         ngx_http_close_connection(c);
 
-         return;
 
-     }
 
 
-     ctx->connection = c;
 
-     ctx->request = NULL;
 
-     ctx->current_request = NULL;
 
 
-     c->log->connection = c->number;
 
-     c->log->handler = ngx_http_log_error;
 
-     c->log->data = ctx;
 
-     c->log->action = "waiting for request";
 
 
-     c->log_error = NGX_ERROR_INFO;
 
 
-     rev = c->read;
 
-     rev->handler = ngx_http_wait_request_handler;
 
-     c->write->handler = ngx_http_empty_handler;
 
 
- #if (NGX_HTTP_SPDY)
 
-     if (hc->addr_conf->spdy) {
 
-         rev->handler = ngx_http_spdy_init;
 
-     }
 
- #endif
 
 
- #if (NGX_HTTP_SSL)
 
-     {
 
-     ngx_http_ssl_srv_conf_t  *sscf;
 
 
-     sscf = ngx_http_get_module_srv_conf(hc->conf_ctx, ngx_http_ssl_module);
 
 
-     if (sscf->enable || hc->addr_conf->ssl) {
 
 
-         c->log->action = "SSL handshaking";
 
 
-         if (hc->addr_conf->ssl && sscf->ssl.ctx == NULL) {
 
-             ngx_log_error(NGX_LOG_ERR, c->log, 0,
 
-                           "no \"ssl_certificate\" is defined "
 
-                           "in server listening on SSL port");
 
-             ngx_http_close_connection(c);
 
-             return;
 
-         }
 
 
-         hc->ssl = 1;
 
 
-         rev->handler = ngx_http_ssl_handshake;
 
-     }
 
-     }
 
- #endif
 
 
-     if (hc->addr_conf->proxy_protocol) {
 
-         hc->proxy_protocol = 1;
 
-         c->log->action = "reading PROXY protocol";
 
-     }
 
 
-     if (rev->ready) {
 
-         
 
 
-         if (ngx_use_accept_mutex) {
 
-             ngx_post_event(rev, &ngx_posted_events);
 
-             return;
 
-         }
 
 
-         rev->handler(rev);
 
-         return;
 
-     }
 
 
-     ngx_add_timer(rev, c->listening->post_accept_timeout);
 
-     ngx_reusable_connection(c, 1);
 
 
-     if (ngx_handle_read_event(rev, 0) != NGX_OK) {
 
-         ngx_http_close_connection(c);
 
-         return;
 
-     }
 
- }
 
 
 
- static void
 
- ngx_http_wait_request_handler(ngx_event_t *rev)
 
- {
 
-     u_char                    *p;
 
-     size_t                     size;
 
-     ssize_t                    n;
 
-     ngx_buf_t                 *b;
 
-     ngx_connection_t          *c;
 
-     ngx_http_connection_t     *hc;
 
-     ngx_http_core_srv_conf_t  *cscf;
 
 
-     c = rev->data;
 
 
-     ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "http wait request handler");
 
 
-     if (rev->timedout) {
 
-         ngx_log_error(NGX_LOG_INFO, c->log, NGX_ETIMEDOUT, "client timed out");
 
-         ngx_http_close_connection(c);
 
-         return;
 
-     }
 
 
-     if (c->close) {
 
-         ngx_http_close_connection(c);
 
-         return;
 
-     }
 
 
-     hc = c->data;
 
-     cscf = ngx_http_get_module_srv_conf(hc->conf_ctx, ngx_http_core_module);
 
 
-     size = cscf->client_header_buffer_size;
 
 
-     b = c->buffer;
 
 
-     if (b == NULL) {
 
-         b = ngx_create_temp_buf(c->pool, size);
 
-         if (b == NULL) {
 
-             ngx_http_close_connection(c);
 
-             return;
 
-         }
 
 
-         c->buffer = b;
 
 
-     } else if (b->start == NULL) {
 
 
-         b->start = ngx_palloc(c->pool, size);
 
-         if (b->start == NULL) {
 
-             ngx_http_close_connection(c);
 
-             return;
 
-         }
 
 
-         b->pos = b->start;
 
-         b->last = b->start;
 
-         b->end = b->last + size;
 
-     }
 
 
-     n = c->recv(c, b->last, size);
 
 
-     if (n == NGX_AGAIN) {
 
 
-         if (!rev->timer_set) {
 
-             ngx_add_timer(rev, c->listening->post_accept_timeout);
 
-             ngx_reusable_connection(c, 1);
 
-         }
 
 
-         if (ngx_handle_read_event(rev, 0) != NGX_OK) {
 
-             ngx_http_close_connection(c);
 
-             return;
 
-         }
 
 
-         
 
 
-         if (ngx_pfree(c->pool, b->start) == NGX_OK) {
 
-             b->start = NULL;
 
-         }
 
 
-         return;
 
-     }
 
 
-     if (n == NGX_ERROR) {
 
-         ngx_http_close_connection(c);
 
-         return;
 
-     }
 
 
-     if (n == 0) {
 
-         ngx_log_error(NGX_LOG_INFO, c->log, 0,
 
-                       "client closed connection");
 
-         ngx_http_close_connection(c);
 
-         return;
 
-     }
 
 
-     b->last += n;
 
 
-     if (hc->proxy_protocol) {
 
-         hc->proxy_protocol = 0;
 
 
-         p = ngx_proxy_protocol_parse(c, b->pos, b->last);
 
 
-         if (p == NULL) {
 
-             ngx_http_close_connection(c);
 
-             return;
 
-         }
 
 
-         b->pos = p;
 
 
-         if (b->pos == b->last) {
 
-             c->log->action = "waiting for request";
 
-             b->pos = b->start;
 
-             b->last = b->start;
 
-             ngx_post_event(rev, &ngx_posted_events);
 
-             return;
 
-         }
 
-     }
 
 
-     c->log->action = "reading client request line";
 
 
-     ngx_reusable_connection(c, 0);
 
 
-     c->data = ngx_http_create_request(c);
 
-     if (c->data == NULL) {
 
-         ngx_http_close_connection(c);
 
-         return;
 
-     }
 
 
-     rev->handler = ngx_http_process_request_line;
 
-     ngx_http_process_request_line(rev);
 
- }
 
 
 
- ngx_http_request_t *
 
- ngx_http_create_request(ngx_connection_t *c)
 
- {
 
-     ngx_pool_t                 *pool;
 
-     ngx_time_t                 *tp;
 
-     ngx_http_request_t         *r;
 
-     ngx_http_log_ctx_t         *ctx;
 
-     ngx_http_connection_t      *hc;
 
-     ngx_http_core_srv_conf_t   *cscf;
 
-     ngx_http_core_loc_conf_t   *clcf;
 
-     ngx_http_core_main_conf_t  *cmcf;
 
 
-     c->requests++;
 
 
-     hc = c->data;
 
 
-     cscf = ngx_http_get_module_srv_conf(hc->conf_ctx, ngx_http_core_module);
 
 
-     pool = ngx_create_pool(cscf->request_pool_size, c->log);
 
-     if (pool == NULL) {
 
-         return NULL;
 
-     }
 
 
-     r = ngx_pcalloc(pool, sizeof(ngx_http_request_t));
 
-     if (r == NULL) {
 
-         ngx_destroy_pool(pool);
 
-         return NULL;
 
-     }
 
 
-     r->pool = pool;
 
 
-     r->http_connection = hc;
 
-     r->signature = NGX_HTTP_MODULE;
 
-     r->connection = c;
 
 
-     r->main_conf = hc->conf_ctx->main_conf;
 
-     r->srv_conf = hc->conf_ctx->srv_conf;
 
-     r->loc_conf = hc->conf_ctx->loc_conf;
 
 
-     r->read_event_handler = ngx_http_block_reading;
 
 
-     clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
 
 
-     ngx_http_set_connection_log(r->connection, clcf->error_log);
 
 
-     r->header_in = hc->nbusy ? hc->busy[0] : c->buffer;
 
 
-     if (ngx_list_init(&r->headers_out.headers, r->pool, 20,
 
-                       sizeof(ngx_table_elt_t))
 
-         != NGX_OK)
 
-     {
 
-         ngx_destroy_pool(r->pool);
 
-         return NULL;
 
-     }
 
 
-     r->ctx = ngx_pcalloc(r->pool, sizeof(void *) * ngx_http_max_module);
 
-     if (r->ctx == NULL) {
 
-         ngx_destroy_pool(r->pool);
 
-         return NULL;
 
-     }
 
 
-     cmcf = ngx_http_get_module_main_conf(r, ngx_http_core_module);
 
 
-     r->variables = ngx_pcalloc(r->pool, cmcf->variables.nelts
 
-                                         * sizeof(ngx_http_variable_value_t));
 
-     if (r->variables == NULL) {
 
-         ngx_destroy_pool(r->pool);
 
-         return NULL;
 
-     }
 
 
- #if (NGX_HTTP_SSL)
 
-     if (c->ssl) {
 
-         r->main_filter_need_in_memory = 1;
 
-     }
 
- #endif
 
 
-     r->main = r;
 
-     r->count = 1;
 
 
-     tp = ngx_timeofday();
 
-     r->start_sec = tp->sec;
 
-     r->start_msec = tp->msec;
 
 
-     r->method = NGX_HTTP_UNKNOWN;
 
-     r->http_version = NGX_HTTP_VERSION_10;
 
 
-     r->headers_in.content_length_n = -1;
 
-     r->headers_in.keep_alive_n = -1;
 
-     r->headers_out.content_length_n = -1;
 
-     r->headers_out.last_modified_time = -1;
 
 
-     r->uri_changes = NGX_HTTP_MAX_URI_CHANGES + 1;
 
-     r->subrequests = NGX_HTTP_MAX_SUBREQUESTS + 1;
 
 
-     r->http_state = NGX_HTTP_READING_REQUEST_STATE;
 
 
-     ctx = c->log->data;
 
-     ctx->request = r;
 
-     ctx->current_request = r;
 
-     r->log_handler = ngx_http_log_error_handler;
 
 
- #if (NGX_STAT_STUB)
 
-     (void) ngx_atomic_fetch_add(ngx_stat_reading, 1);
 
-     r->stat_reading = 1;
 
-     (void) ngx_atomic_fetch_add(ngx_stat_requests, 1);
 
- #endif
 
 
-     return r;
 
- }
 
 
 
- #if (NGX_HTTP_SSL)
 
 
- static void
 
- ngx_http_ssl_handshake(ngx_event_t *rev)
 
- {
 
-     u_char                   *p, buf[NGX_PROXY_PROTOCOL_MAX_HEADER + 1];
 
-     size_t                    size;
 
-     ssize_t                   n;
 
-     ngx_err_t                 err;
 
-     ngx_int_t                 rc;
 
-     ngx_connection_t         *c;
 
-     ngx_http_connection_t    *hc;
 
-     ngx_http_ssl_srv_conf_t  *sscf;
 
 
-     c = rev->data;
 
-     hc = c->data;
 
 
-     ngx_log_debug0(NGX_LOG_DEBUG_HTTP, rev->log, 0,
 
-                    "http check ssl handshake");
 
 
-     if (rev->timedout) {
 
-         ngx_log_error(NGX_LOG_INFO, c->log, NGX_ETIMEDOUT, "client timed out");
 
-         ngx_http_close_connection(c);
 
-         return;
 
-     }
 
 
-     if (c->close) {
 
-         ngx_http_close_connection(c);
 
-         return;
 
-     }
 
 
-     size = hc->proxy_protocol ? sizeof(buf) : 1;
 
 
-     n = recv(c->fd, (char *) buf, size, MSG_PEEK);
 
 
-     err = ngx_socket_errno;
 
 
-     ngx_log_debug1(NGX_LOG_DEBUG_HTTP, rev->log, 0, "http recv(): %d", n);
 
 
-     if (n == -1) {
 
-         if (err == NGX_EAGAIN) {
 
 
-             if (!rev->timer_set) {
 
-                 ngx_add_timer(rev, c->listening->post_accept_timeout);
 
-                 ngx_reusable_connection(c, 1);
 
-             }
 
 
-             if (ngx_handle_read_event(rev, 0) != NGX_OK) {
 
-                 ngx_http_close_connection(c);
 
-             }
 
 
-             return;
 
-         }
 
 
-         ngx_connection_error(c, err, "recv() failed");
 
-         ngx_http_close_connection(c);
 
 
-         return;
 
-     }
 
 
-     if (hc->proxy_protocol) {
 
-         hc->proxy_protocol = 0;
 
 
-         p = ngx_proxy_protocol_parse(c, buf, buf + n);
 
 
-         if (p == NULL) {
 
-             ngx_http_close_connection(c);
 
-             return;
 
-         }
 
 
-         size = p - buf;
 
 
-         if (c->recv(c, buf, size) != (ssize_t) size) {
 
-             ngx_http_close_connection(c);
 
-             return;
 
-         }
 
 
-         c->log->action = "SSL handshaking";
 
 
-         if (n == (ssize_t) size) {
 
-             ngx_post_event(rev, &ngx_posted_events);
 
-             return;
 
-         }
 
 
-         n = 1;
 
-         buf[0] = *p;
 
-     }
 
 
-     if (n == 1) {
 
-         if (buf[0] & 0x80  || buf[0] == 0x16 ) {
 
-             ngx_log_debug1(NGX_LOG_DEBUG_HTTP, rev->log, 0,
 
-                            "https ssl handshake: 0x%02Xd", buf[0]);
 
 
-             sscf = ngx_http_get_module_srv_conf(hc->conf_ctx,
 
-                                                 ngx_http_ssl_module);
 
 
-             if (ngx_ssl_create_connection(&sscf->ssl, c, NGX_SSL_BUFFER)
 
-                 != NGX_OK)
 
-             {
 
-                 ngx_http_close_connection(c);
 
-                 return;
 
-             }
 
 
-             rc = ngx_ssl_handshake(c);
 
 
-             if (rc == NGX_AGAIN) {
 
 
-                 if (!rev->timer_set) {
 
-                     ngx_add_timer(rev, c->listening->post_accept_timeout);
 
-                 }
 
 
-                 ngx_reusable_connection(c, 0);
 
 
-                 c->ssl->handler = ngx_http_ssl_handshake_handler;
 
-                 return;
 
-             }
 
 
-             ngx_http_ssl_handshake_handler(c);
 
 
-             return;
 
-         }
 
 
-         ngx_log_debug0(NGX_LOG_DEBUG_HTTP, rev->log, 0, "plain http");
 
 
-         c->log->action = "waiting for request";
 
 
-         rev->handler = ngx_http_wait_request_handler;
 
-         ngx_http_wait_request_handler(rev);
 
 
-         return;
 
-     }
 
 
-     ngx_log_error(NGX_LOG_INFO, c->log, 0, "client closed connection");
 
-     ngx_http_close_connection(c);
 
- }
 
 
 
- static void
 
- ngx_http_ssl_handshake_handler(ngx_connection_t *c)
 
- {
 
-     if (c->ssl->handshaked) {
 
 
-         
 
 
-         c->ssl->no_wait_shutdown = 1;
 
 
- #if (NGX_HTTP_SPDY                                                            \
 
-      && (defined TLSEXT_TYPE_application_layer_protocol_negotiation           \
 
-          || defined TLSEXT_TYPE_next_proto_neg))
 
-         {
 
-         unsigned int             len;
 
-         const unsigned char     *data;
 
-         static const ngx_str_t   spdy = ngx_string(NGX_SPDY_NPN_NEGOTIATED);
 
 
- #ifdef TLSEXT_TYPE_application_layer_protocol_negotiation
 
-         SSL_get0_alpn_selected(c->ssl->connection, &data, &len);
 
 
- #ifdef TLSEXT_TYPE_next_proto_neg
 
-         if (len == 0) {
 
-             SSL_get0_next_proto_negotiated(c->ssl->connection, &data, &len);
 
-         }
 
- #endif
 
 
- #else 
 
-         SSL_get0_next_proto_negotiated(c->ssl->connection, &data, &len);
 
- #endif
 
 
-         if (len == spdy.len && ngx_strncmp(data, spdy.data, spdy.len) == 0) {
 
-             ngx_http_spdy_init(c->read);
 
-             return;
 
-         }
 
-         }
 
- #endif
 
 
-         c->log->action = "waiting for request";
 
 
-         c->read->handler = ngx_http_wait_request_handler;
 
-          c->write->handler = ngx_http_empty_handler;
 
 
-         ngx_reusable_connection(c, 1);
 
 
-         ngx_http_wait_request_handler(c->read);
 
 
-         return;
 
-     }
 
 
-     if (c->read->timedout) {
 
-         ngx_log_error(NGX_LOG_INFO, c->log, NGX_ETIMEDOUT, "client timed out");
 
-     }
 
 
-     ngx_http_close_connection(c);
 
- }
 
 
- #ifdef SSL_CTRL_SET_TLSEXT_HOSTNAME
 
 
- int
 
- ngx_http_ssl_servername(ngx_ssl_conn_t *ssl_conn, int *ad, void *arg)
 
- {
 
-     ngx_str_t                  host;
 
-     const char                *servername;
 
-     ngx_connection_t          *c;
 
-     ngx_http_connection_t     *hc;
 
-     ngx_http_ssl_srv_conf_t   *sscf;
 
-     ngx_http_core_loc_conf_t  *clcf;
 
-     ngx_http_core_srv_conf_t  *cscf;
 
 
-     servername = SSL_get_servername(ssl_conn, TLSEXT_NAMETYPE_host_name);
 
 
-     if (servername == NULL) {
 
-         return SSL_TLSEXT_ERR_NOACK;
 
-     }
 
 
-     c = ngx_ssl_get_connection(ssl_conn);
 
 
-     ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
 
-                    "SSL server name: \"%s\"", servername);
 
 
-     host.len = ngx_strlen(servername);
 
 
-     if (host.len == 0) {
 
-         return SSL_TLSEXT_ERR_NOACK;
 
-     }
 
 
-     host.data = (u_char *) servername;
 
 
-     if (ngx_http_validate_host(&host, c->pool, 1) != NGX_OK) {
 
-         return SSL_TLSEXT_ERR_NOACK;
 
-     }
 
 
-     hc = c->data;
 
 
-     if (ngx_http_find_virtual_server(c, hc->addr_conf->virtual_names, &host,
 
-                                      NULL, &cscf)
 
-         != NGX_OK)
 
-     {
 
-         return SSL_TLSEXT_ERR_NOACK;
 
-     }
 
 
-     hc->ssl_servername = ngx_palloc(c->pool, sizeof(ngx_str_t));
 
-     if (hc->ssl_servername == NULL) {
 
-         return SSL_TLSEXT_ERR_NOACK;
 
-     }
 
 
-     *hc->ssl_servername = host;
 
 
-     hc->conf_ctx = cscf->ctx;
 
 
-     clcf = ngx_http_get_module_loc_conf(hc->conf_ctx, ngx_http_core_module);
 
 
-     ngx_http_set_connection_log(c, clcf->error_log);
 
 
-     sscf = ngx_http_get_module_srv_conf(hc->conf_ctx, ngx_http_ssl_module);
 
 
-     if (sscf->ssl.ctx) {
 
-         SSL_set_SSL_CTX(ssl_conn, sscf->ssl.ctx);
 
 
-         
 
 
-         SSL_set_verify(ssl_conn, SSL_CTX_get_verify_mode(sscf->ssl.ctx),
 
-                        SSL_CTX_get_verify_callback(sscf->ssl.ctx));
 
 
-         SSL_set_verify_depth(ssl_conn, SSL_CTX_get_verify_depth(sscf->ssl.ctx));
 
 
- #ifdef SSL_CTRL_CLEAR_OPTIONS
 
-         
 
-         SSL_clear_options(ssl_conn, SSL_get_options(ssl_conn) &
 
-                                     ~SSL_CTX_get_options(sscf->ssl.ctx));
 
- #endif
 
 
-         SSL_set_options(ssl_conn, SSL_CTX_get_options(sscf->ssl.ctx));
 
-     }
 
 
-     return SSL_TLSEXT_ERR_OK;
 
- }
 
 
- #endif
 
 
- #endif
 
 
 
- static void
 
- ngx_http_process_request_line(ngx_event_t *rev)
 
- {
 
-     ssize_t              n;
 
-     ngx_int_t            rc, rv;
 
-     ngx_str_t            host;
 
-     ngx_connection_t    *c;
 
-     ngx_http_request_t  *r;
 
 
-     c = rev->data;
 
-     r = c->data;
 
 
-     ngx_log_debug0(NGX_LOG_DEBUG_HTTP, rev->log, 0,
 
-                    "http process request line");
 
 
-     if (rev->timedout) {
 
-         ngx_log_error(NGX_LOG_INFO, c->log, NGX_ETIMEDOUT, "client timed out");
 
-         c->timedout = 1;
 
-         ngx_http_close_request(r, NGX_HTTP_REQUEST_TIME_OUT);
 
-         return;
 
-     }
 
 
-     rc = NGX_AGAIN;
 
 
-     for ( ;; ) {
 
 
-         if (rc == NGX_AGAIN) {
 
-             n = ngx_http_read_request_header(r);
 
 
-             if (n == NGX_AGAIN || n == NGX_ERROR) {
 
-                 return;
 
-             }
 
-         }
 
 
-         rc = ngx_http_parse_request_line(r, r->header_in);
 
 
-         if (rc == NGX_OK) {
 
 
-             
 
 
-             r->request_line.len = r->request_end - r->request_start;
 
-             r->request_line.data = r->request_start;
 
-             r->request_length = r->header_in->pos - r->request_start;
 
 
-             ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
 
-                            "http request line: \"%V\"", &r->request_line);
 
 
-             r->method_name.len = r->method_end - r->request_start + 1;
 
-             r->method_name.data = r->request_line.data;
 
 
-             if (r->http_protocol.data) {
 
-                 r->http_protocol.len = r->request_end - r->http_protocol.data;
 
-             }
 
 
-             if (ngx_http_process_request_uri(r) != NGX_OK) {
 
-                 return;
 
-             }
 
 
-             if (r->host_start && r->host_end) {
 
 
-                 host.len = r->host_end - r->host_start;
 
-                 host.data = r->host_start;
 
 
-                 rc = ngx_http_validate_host(&host, r->pool, 0);
 
 
-                 if (rc == NGX_DECLINED) {
 
-                     ngx_log_error(NGX_LOG_INFO, c->log, 0,
 
-                                   "client sent invalid host in request line");
 
-                     ngx_http_finalize_request(r, NGX_HTTP_BAD_REQUEST);
 
-                     return;
 
-                 }
 
 
-                 if (rc == NGX_ERROR) {
 
-                     ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
 
-                     return;
 
-                 }
 
 
-                 if (ngx_http_set_virtual_server(r, &host) == NGX_ERROR) {
 
-                     return;
 
-                 }
 
 
-                 r->headers_in.server = host;
 
-             }
 
 
-             if (r->http_version < NGX_HTTP_VERSION_10) {
 
 
-                 if (r->headers_in.server.len == 0
 
-                     && ngx_http_set_virtual_server(r, &r->headers_in.server)
 
-                        == NGX_ERROR)
 
-                 {
 
-                     return;
 
-                 }
 
 
-                 ngx_http_process_request(r);
 
-                 return;
 
-             }
 
 
 
-             if (ngx_list_init(&r->headers_in.headers, r->pool, 20,
 
-                               sizeof(ngx_table_elt_t))
 
-                 != NGX_OK)
 
-             {
 
-                 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
 
-                 return;
 
-             }
 
 
-             c->log->action = "reading client request headers";
 
 
-             rev->handler = ngx_http_process_request_headers;
 
-             ngx_http_process_request_headers(rev);
 
 
-             return;
 
-         }
 
 
-         if (rc != NGX_AGAIN) {
 
 
-             
 
 
-             ngx_log_error(NGX_LOG_INFO, c->log, 0,
 
-                           ngx_http_client_errors[rc - NGX_HTTP_CLIENT_ERROR]);
 
-             ngx_http_finalize_request(r, NGX_HTTP_BAD_REQUEST);
 
-             return;
 
-         }
 
 
-         
 
 
-         if (r->header_in->pos == r->header_in->end) {
 
 
-             rv = ngx_http_alloc_large_header_buffer(r, 1);
 
 
-             if (rv == NGX_ERROR) {
 
-                 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
 
-                 return;
 
-             }
 
 
-             if (rv == NGX_DECLINED) {
 
-                 r->request_line.len = r->header_in->end - r->request_start;
 
-                 r->request_line.data = r->request_start;
 
 
-                 ngx_log_error(NGX_LOG_INFO, c->log, 0,
 
-                               "client sent too long URI");
 
-                 ngx_http_finalize_request(r, NGX_HTTP_REQUEST_URI_TOO_LARGE);
 
-                 return;
 
-             }
 
-         }
 
-     }
 
- }
 
 
 
- ngx_int_t
 
- ngx_http_process_request_uri(ngx_http_request_t *r)
 
- {
 
-     ngx_http_core_srv_conf_t  *cscf;
 
 
-     if (r->args_start) {
 
-         r->uri.len = r->args_start - 1 - r->uri_start;
 
-     } else {
 
-         r->uri.len = r->uri_end - r->uri_start;
 
-     }
 
 
-     if (r->complex_uri || r->quoted_uri) {
 
 
-         r->uri.data = ngx_pnalloc(r->pool, r->uri.len + 1);
 
-         if (r->uri.data == NULL) {
 
-             ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
 
-             return NGX_ERROR;
 
-         }
 
 
-         cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
 
 
-         if (ngx_http_parse_complex_uri(r, cscf->merge_slashes) != NGX_OK) {
 
-             r->uri.len = 0;
 
 
-             ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
 
-                           "client sent invalid request");
 
-             ngx_http_finalize_request(r, NGX_HTTP_BAD_REQUEST);
 
-             return NGX_ERROR;
 
-         }
 
 
-     } else {
 
-         r->uri.data = r->uri_start;
 
-     }
 
 
-     r->unparsed_uri.len = r->uri_end - r->uri_start;
 
-     r->unparsed_uri.data = r->uri_start;
 
 
-     r->valid_unparsed_uri = r->space_in_uri ? 0 : 1;
 
 
-     if (r->uri_ext) {
 
-         if (r->args_start) {
 
-             r->exten.len = r->args_start - 1 - r->uri_ext;
 
-         } else {
 
-             r->exten.len = r->uri_end - r->uri_ext;
 
-         }
 
 
-         r->exten.data = r->uri_ext;
 
-     }
 
 
-     if (r->args_start && r->uri_end > r->args_start) {
 
-         r->args.len = r->uri_end - r->args_start;
 
-         r->args.data = r->args_start;
 
-     }
 
 
- #if (NGX_WIN32)
 
-     {
 
-     u_char  *p, *last;
 
 
-     p = r->uri.data;
 
-     last = r->uri.data + r->uri.len;
 
 
-     while (p < last) {
 
 
-         if (*p++ == ':') {
 
 
-             
 
 
-             if (p < last && *p == '$') {
 
-                 ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
 
-                               "client sent unsafe win32 URI");
 
-                 ngx_http_finalize_request(r, NGX_HTTP_BAD_REQUEST);
 
-                 return NGX_ERROR;
 
-             }
 
-         }
 
-     }
 
 
-     p = r->uri.data + r->uri.len - 1;
 
 
-     while (p > r->uri.data) {
 
 
-         if (*p == ' ') {
 
-             p--;
 
-             continue;
 
-         }
 
 
-         if (*p == '.') {
 
-             p--;
 
-             continue;
 
-         }
 
 
-         break;
 
-     }
 
 
-     if (p != r->uri.data + r->uri.len - 1) {
 
-         r->uri.len = p + 1 - r->uri.data;
 
-         ngx_http_set_exten(r);
 
-     }
 
 
-     }
 
- #endif
 
 
-     ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
 
-                    "http uri: \"%V\"", &r->uri);
 
 
-     ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
 
-                    "http args: \"%V\"", &r->args);
 
 
-     ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
 
-                    "http exten: \"%V\"", &r->exten);
 
 
-     return NGX_OK;
 
- }
 
 
 
- static void
 
- ngx_http_process_request_headers(ngx_event_t *rev)
 
- {
 
-     u_char                     *p;
 
-     size_t                      len;
 
-     ssize_t                     n;
 
-     ngx_int_t                   rc, rv;
 
-     ngx_table_elt_t            *h;
 
-     ngx_connection_t           *c;
 
-     ngx_http_header_t          *hh;
 
-     ngx_http_request_t         *r;
 
-     ngx_http_core_srv_conf_t   *cscf;
 
-     ngx_http_core_main_conf_t  *cmcf;
 
 
-     c = rev->data;
 
-     r = c->data;
 
 
-     ngx_log_debug0(NGX_LOG_DEBUG_HTTP, rev->log, 0,
 
-                    "http process request header line");
 
 
-     if (rev->timedout) {
 
-         ngx_log_error(NGX_LOG_INFO, c->log, NGX_ETIMEDOUT, "client timed out");
 
-         c->timedout = 1;
 
-         ngx_http_close_request(r, NGX_HTTP_REQUEST_TIME_OUT);
 
-         return;
 
-     }
 
 
-     cmcf = ngx_http_get_module_main_conf(r, ngx_http_core_module);
 
 
-     rc = NGX_AGAIN;
 
 
-     for ( ;; ) {
 
 
-         if (rc == NGX_AGAIN) {
 
 
-             if (r->header_in->pos == r->header_in->end) {
 
 
-                 rv = ngx_http_alloc_large_header_buffer(r, 0);
 
 
-                 if (rv == NGX_ERROR) {
 
-                     ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
 
-                     return;
 
-                 }
 
 
-                 if (rv == NGX_DECLINED) {
 
-                     p = r->header_name_start;
 
 
-                     r->lingering_close = 1;
 
 
-                     if (p == NULL) {
 
-                         ngx_log_error(NGX_LOG_INFO, c->log, 0,
 
-                                       "client sent too large request");
 
-                         ngx_http_finalize_request(r,
 
-                                             NGX_HTTP_REQUEST_HEADER_TOO_LARGE);
 
-                         return;
 
-                     }
 
 
-                     len = r->header_in->end - p;
 
 
-                     if (len > NGX_MAX_ERROR_STR - 300) {
 
-                         len = NGX_MAX_ERROR_STR - 300;
 
-                     }
 
 
-                     ngx_log_error(NGX_LOG_INFO, c->log, 0,
 
-                                 "client sent too long header line: \"%*s...\"",
 
-                                 len, r->header_name_start);
 
 
-                     ngx_http_finalize_request(r,
 
-                                             NGX_HTTP_REQUEST_HEADER_TOO_LARGE);
 
-                     return;
 
-                 }
 
-             }
 
 
-             n = ngx_http_read_request_header(r);
 
 
-             if (n == NGX_AGAIN || n == NGX_ERROR) {
 
-                 return;
 
-             }
 
-         }
 
 
-         
 
-         cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
 
 
-         rc = ngx_http_parse_header_line(r, r->header_in,
 
-                                         cscf->underscores_in_headers);
 
 
-         if (rc == NGX_OK) {
 
 
-             r->request_length += r->header_in->pos - r->header_name_start;
 
 
-             if (r->invalid_header && cscf->ignore_invalid_headers) {
 
 
-                 
 
 
-                 ngx_log_error(NGX_LOG_INFO, c->log, 0,
 
-                               "client sent invalid header line: \"%*s\"",
 
-                               r->header_end - r->header_name_start,
 
-                               r->header_name_start);
 
-                 continue;
 
-             }
 
 
-             
 
 
-             h = ngx_list_push(&r->headers_in.headers);
 
-             if (h == NULL) {
 
-                 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
 
-                 return;
 
-             }
 
 
-             h->hash = r->header_hash;
 
 
-             h->key.len = r->header_name_end - r->header_name_start;
 
-             h->key.data = r->header_name_start;
 
-             h->key.data[h->key.len] = '\0';
 
 
-             h->value.len = r->header_end - r->header_start;
 
-             h->value.data = r->header_start;
 
-             h->value.data[h->value.len] = '\0';
 
 
-             h->lowcase_key = ngx_pnalloc(r->pool, h->key.len);
 
-             if (h->lowcase_key == NULL) {
 
-                 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
 
-                 return;
 
-             }
 
 
-             if (h->key.len == r->lowcase_index) {
 
-                 ngx_memcpy(h->lowcase_key, r->lowcase_header, h->key.len);
 
 
-             } else {
 
-                 ngx_strlow(h->lowcase_key, h->key.data, h->key.len);
 
-             }
 
 
-             hh = ngx_hash_find(&cmcf->headers_in_hash, h->hash,
 
-                                h->lowcase_key, h->key.len);
 
 
-             if (hh && hh->handler(r, h, hh->offset) != NGX_OK) {
 
-                 return;
 
-             }
 
 
-             ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
 
-                            "http header: \"%V: %V\"",
 
-                            &h->key, &h->value);
 
 
-             continue;
 
-         }
 
 
-         if (rc == NGX_HTTP_PARSE_HEADER_DONE) {
 
 
-             
 
 
-             ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
 
-                            "http header done");
 
 
-             r->request_length += r->header_in->pos - r->header_name_start;
 
 
-             r->http_state = NGX_HTTP_PROCESS_REQUEST_STATE;
 
 
-             rc = ngx_http_process_request_header(r);
 
 
-             if (rc != NGX_OK) {
 
-                 return;
 
-             }
 
 
-             ngx_http_process_request(r);
 
 
-             return;
 
-         }
 
 
-         if (rc == NGX_AGAIN) {
 
 
-             
 
 
-             continue;
 
-         }
 
 
-         
 
 
-         ngx_log_error(NGX_LOG_INFO, c->log, 0,
 
-                       "client sent invalid header line: \"%*s\\r...\"",
 
-                       r->header_end - r->header_name_start,
 
-                       r->header_name_start);
 
-         ngx_http_finalize_request(r, NGX_HTTP_BAD_REQUEST);
 
-         return;
 
-     }
 
- }
 
 
 
- static ssize_t
 
- ngx_http_read_request_header(ngx_http_request_t *r)
 
- {
 
-     ssize_t                    n;
 
-     ngx_event_t               *rev;
 
-     ngx_connection_t          *c;
 
-     ngx_http_core_srv_conf_t  *cscf;
 
 
-     c = r->connection;
 
-     rev = c->read;
 
 
-     n = r->header_in->last - r->header_in->pos;
 
 
-     if (n > 0) {
 
-         return n;
 
-     }
 
 
-     if (rev->ready) {
 
-         n = c->recv(c, r->header_in->last,
 
-                     r->header_in->end - r->header_in->last);
 
-     } else {
 
-         n = NGX_AGAIN;
 
-     }
 
 
-     if (n == NGX_AGAIN) {
 
-         if (!rev->timer_set) {
 
-             cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
 
-             ngx_add_timer(rev, cscf->client_header_timeout);
 
-         }
 
 
-         if (ngx_handle_read_event(rev, 0) != NGX_OK) {
 
-             ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
 
-             return NGX_ERROR;
 
-         }
 
 
-         return NGX_AGAIN;
 
-     }
 
 
-     if (n == 0) {
 
-         ngx_log_error(NGX_LOG_INFO, c->log, 0,
 
-                       "client prematurely closed connection");
 
-     }
 
 
-     if (n == 0 || n == NGX_ERROR) {
 
-         c->error = 1;
 
-         c->log->action = "reading client request headers";
 
 
-         ngx_http_finalize_request(r, NGX_HTTP_BAD_REQUEST);
 
-         return NGX_ERROR;
 
-     }
 
 
-     r->header_in->last += n;
 
 
-     return n;
 
- }
 
 
 
- static ngx_int_t
 
- ngx_http_alloc_large_header_buffer(ngx_http_request_t *r,
 
-     ngx_uint_t request_line)
 
- {
 
-     u_char                    *old, *new;
 
-     ngx_buf_t                 *b;
 
-     ngx_http_connection_t     *hc;
 
-     ngx_http_core_srv_conf_t  *cscf;
 
 
-     ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
 
-                    "http alloc large header buffer");
 
 
-     if (request_line && r->state == 0) {
 
 
-         
 
 
-         r->header_in->pos = r->header_in->start;
 
-         r->header_in->last = r->header_in->start;
 
 
-         return NGX_OK;
 
-     }
 
 
-     old = request_line ? r->request_start : r->header_name_start;
 
 
-     cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
 
 
-     if (r->state != 0
 
-         && (size_t) (r->header_in->pos - old)
 
-                                      >= cscf->large_client_header_buffers.size)
 
-     {
 
-         return NGX_DECLINED;
 
-     }
 
 
-     hc = r->http_connection;
 
 
-     if (hc->nfree) {
 
-         b = hc->free[--hc->nfree];
 
 
-         ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
 
-                        "http large header free: %p %uz",
 
-                        b->pos, b->end - b->last);
 
 
-     } else if (hc->nbusy < cscf->large_client_header_buffers.num) {
 
 
-         if (hc->busy == NULL) {
 
-             hc->busy = ngx_palloc(r->connection->pool,
 
-                   cscf->large_client_header_buffers.num * sizeof(ngx_buf_t *));
 
-             if (hc->busy == NULL) {
 
-                 return NGX_ERROR;
 
-             }
 
-         }
 
 
-         b = ngx_create_temp_buf(r->connection->pool,
 
-                                 cscf->large_client_header_buffers.size);
 
-         if (b == NULL) {
 
-             return NGX_ERROR;
 
-         }
 
 
-         ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
 
-                        "http large header alloc: %p %uz",
 
-                        b->pos, b->end - b->last);
 
 
-     } else {
 
-         return NGX_DECLINED;
 
-     }
 
 
-     hc->busy[hc->nbusy++] = b;
 
 
-     if (r->state == 0) {
 
-         
 
 
-         r->header_in = b;
 
 
-         return NGX_OK;
 
-     }
 
 
-     ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
 
-                    "http large header copy: %d", r->header_in->pos - old);
 
 
-     new = b->start;
 
 
-     ngx_memcpy(new, old, r->header_in->pos - old);
 
 
-     b->pos = new + (r->header_in->pos - old);
 
-     b->last = new + (r->header_in->pos - old);
 
 
-     if (request_line) {
 
-         r->request_start = new;
 
 
-         if (r->request_end) {
 
-             r->request_end = new + (r->request_end - old);
 
-         }
 
 
-         r->method_end = new + (r->method_end - old);
 
 
-         r->uri_start = new + (r->uri_start - old);
 
-         r->uri_end = new + (r->uri_end - old);
 
 
-         if (r->schema_start) {
 
-             r->schema_start = new + (r->schema_start - old);
 
-             r->schema_end = new + (r->schema_end - old);
 
-         }
 
 
-         if (r->host_start) {
 
-             r->host_start = new + (r->host_start - old);
 
-             if (r->host_end) {
 
-                 r->host_end = new + (r->host_end - old);
 
-             }
 
-         }
 
 
-         if (r->port_start) {
 
-             r->port_start = new + (r->port_start - old);
 
-             r->port_end = new + (r->port_end - old);
 
-         }
 
 
-         if (r->uri_ext) {
 
-             r->uri_ext = new + (r->uri_ext - old);
 
-         }
 
 
-         if (r->args_start) {
 
-             r->args_start = new + (r->args_start - old);
 
-         }
 
 
-         if (r->http_protocol.data) {
 
-             r->http_protocol.data = new + (r->http_protocol.data - old);
 
-         }
 
 
-     } else {
 
-         r->header_name_start = new;
 
-         r->header_name_end = new + (r->header_name_end - old);
 
-         r->header_start = new + (r->header_start - old);
 
-         r->header_end = new + (r->header_end - old);
 
-     }
 
 
-     r->header_in = b;
 
 
-     return NGX_OK;
 
- }
 
 
 
- static ngx_int_t
 
- ngx_http_process_header_line(ngx_http_request_t *r, ngx_table_elt_t *h,
 
-     ngx_uint_t offset)
 
- {
 
-     ngx_table_elt_t  **ph;
 
 
-     ph = (ngx_table_elt_t **) ((char *) &r->headers_in + offset);
 
 
-     if (*ph == NULL) {
 
-         *ph = h;
 
-     }
 
 
-     return NGX_OK;
 
- }
 
 
 
- static ngx_int_t
 
- ngx_http_process_unique_header_line(ngx_http_request_t *r, ngx_table_elt_t *h,
 
-     ngx_uint_t offset)
 
- {
 
-     ngx_table_elt_t  **ph;
 
 
-     ph = (ngx_table_elt_t **) ((char *) &r->headers_in + offset);
 
 
-     if (*ph == NULL) {
 
-         *ph = h;
 
-         return NGX_OK;
 
-     }
 
 
-     ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
 
-                   "client sent duplicate header line: \"%V: %V\", "
 
-                   "previous value: \"%V: %V\"",
 
-                   &h->key, &h->value, &(*ph)->key, &(*ph)->value);
 
 
-     ngx_http_finalize_request(r, NGX_HTTP_BAD_REQUEST);
 
 
-     return NGX_ERROR;
 
- }
 
 
 
- static ngx_int_t
 
- ngx_http_process_host(ngx_http_request_t *r, ngx_table_elt_t *h,
 
-     ngx_uint_t offset)
 
- {
 
-     ngx_int_t  rc;
 
-     ngx_str_t  host;
 
 
-     if (r->headers_in.host == NULL) {
 
-         r->headers_in.host = h;
 
-     }
 
 
-     host = h->value;
 
 
-     rc = ngx_http_validate_host(&host, r->pool, 0);
 
 
-     if (rc == NGX_DECLINED) {
 
-         ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
 
-                       "client sent invalid host header");
 
-         ngx_http_finalize_request(r, NGX_HTTP_BAD_REQUEST);
 
-         return NGX_ERROR;
 
-     }
 
 
-     if (rc == NGX_ERROR) {
 
-         ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
 
-         return NGX_ERROR;
 
-     }
 
 
-     if (r->headers_in.server.len) {
 
-         return NGX_OK;
 
-     }
 
 
-     if (ngx_http_set_virtual_server(r, &host) == NGX_ERROR) {
 
-         return NGX_ERROR;
 
-     }
 
 
-     r->headers_in.server = host;
 
 
-     return NGX_OK;
 
- }
 
 
 
- static ngx_int_t
 
- ngx_http_process_connection(ngx_http_request_t *r, ngx_table_elt_t *h,
 
-     ngx_uint_t offset)
 
- {
 
-     if (ngx_strcasestrn(h->value.data, "close", 5 - 1)) {
 
-         r->headers_in.connection_type = NGX_HTTP_CONNECTION_CLOSE;
 
 
-     } else if (ngx_strcasestrn(h->value.data, "keep-alive", 10 - 1)) {
 
-         r->headers_in.connection_type = NGX_HTTP_CONNECTION_KEEP_ALIVE;
 
-     }
 
 
-     return NGX_OK;
 
- }
 
 
 
- static ngx_int_t
 
- ngx_http_process_user_agent(ngx_http_request_t *r, ngx_table_elt_t *h,
 
-     ngx_uint_t offset)
 
- {
 
-     u_char  *user_agent, *msie;
 
 
-     if (r->headers_in.user_agent) {
 
-         return NGX_OK;
 
-     }
 
 
-     r->headers_in.user_agent = h;
 
 
-     
 
 
-     user_agent = h->value.data;
 
 
-     msie = ngx_strstrn(user_agent, "MSIE ", 5 - 1);
 
 
-     if (msie && msie + 7 < user_agent + h->value.len) {
 
 
-         r->headers_in.msie = 1;
 
 
-         if (msie[6] == '.') {
 
 
-             switch (msie[5]) {
 
-             case '4':
 
-             case '5':
 
-                 r->headers_in.msie6 = 1;
 
-                 break;
 
-             case '6':
 
-                 if (ngx_strstrn(msie + 8, "SV1", 3 - 1) == NULL) {
 
-                     r->headers_in.msie6 = 1;
 
-                 }
 
-                 break;
 
-             }
 
-         }
 
 
- #if 0
 
- #endif
 
-     }
 
 
-     if (ngx_strstrn(user_agent, "Opera", 5 - 1)) {
 
-         r->headers_in.opera = 1;
 
-         r->headers_in.msie = 0;
 
-         r->headers_in.msie6 = 0;
 
-     }
 
 
-     if (!r->headers_in.msie && !r->headers_in.opera) {
 
 
-         if (ngx_strstrn(user_agent, "Gecko/", 6 - 1)) {
 
-             r->headers_in.gecko = 1;
 
 
-         } else if (ngx_strstrn(user_agent, "Chrome/", 7 - 1)) {
 
-             r->headers_in.chrome = 1;
 
 
-         } else if (ngx_strstrn(user_agent, "Safari/", 7 - 1)
 
-                    && ngx_strstrn(user_agent, "Mac OS X", 8 - 1))
 
-         {
 
-             r->headers_in.safari = 1;
 
 
-         } else if (ngx_strstrn(user_agent, "Konqueror", 9 - 1)) {
 
-             r->headers_in.konqueror = 1;
 
-         }
 
-     }
 
 
-     return NGX_OK;
 
- }
 
 
 
- static ngx_int_t
 
- ngx_http_process_multi_header_lines(ngx_http_request_t *r, ngx_table_elt_t *h,
 
-     ngx_uint_t offset)
 
- {
 
-     ngx_array_t       *headers;
 
-     ngx_table_elt_t  **ph;
 
 
-     headers = (ngx_array_t *) ((char *) &r->headers_in + offset);
 
 
-     if (headers->elts == NULL) {
 
-         if (ngx_array_init(headers, r->pool, 1, sizeof(ngx_table_elt_t *))
 
-             != NGX_OK)
 
-         {
 
-             ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
 
-             return NGX_ERROR;
 
-         }
 
-     }
 
 
-     ph = ngx_array_push(headers);
 
-     if (ph == NULL) {
 
-         ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
 
-         return NGX_ERROR;
 
-     }
 
 
-     *ph = h;
 
-     return NGX_OK;
 
- }
 
 
 
- ngx_int_t
 
- ngx_http_process_request_header(ngx_http_request_t *r)
 
- {
 
-     if (r->headers_in.server.len == 0
 
-         && ngx_http_set_virtual_server(r, &r->headers_in.server)
 
-            == NGX_ERROR)
 
-     {
 
-         return NGX_ERROR;
 
-     }
 
 
-     if (r->headers_in.host == NULL && r->http_version > NGX_HTTP_VERSION_10) {
 
-         ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
 
-                    "client sent HTTP/1.1 request without \"Host\" header");
 
-         ngx_http_finalize_request(r, NGX_HTTP_BAD_REQUEST);
 
-         return NGX_ERROR;
 
-     }
 
 
-     if (r->headers_in.content_length) {
 
-         r->headers_in.content_length_n =
 
-                             ngx_atoof(r->headers_in.content_length->value.data,
 
-                                       r->headers_in.content_length->value.len);
 
 
-         if (r->headers_in.content_length_n == NGX_ERROR) {
 
-             ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
 
-                           "client sent invalid \"Content-Length\" header");
 
-             ngx_http_finalize_request(r, NGX_HTTP_BAD_REQUEST);
 
-             return NGX_ERROR;
 
-         }
 
-     }
 
 
-     if (r->method & NGX_HTTP_TRACE) {
 
-         ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
 
-                       "client sent TRACE method");
 
-         ngx_http_finalize_request(r, NGX_HTTP_NOT_ALLOWED);
 
-         return NGX_ERROR;
 
-     }
 
 
-     if (r->headers_in.transfer_encoding) {
 
-         if (r->headers_in.transfer_encoding->value.len == 7
 
-             && ngx_strncasecmp(r->headers_in.transfer_encoding->value.data,
 
-                                (u_char *) "chunked", 7) == 0)
 
-         {
 
-             r->headers_in.content_length = NULL;
 
-             r->headers_in.content_length_n = -1;
 
-             r->headers_in.chunked = 1;
 
 
-         } else if (r->headers_in.transfer_encoding->value.len != 8
 
-             || ngx_strncasecmp(r->headers_in.transfer_encoding->value.data,
 
-                                (u_char *) "identity", 8) != 0)
 
-         {
 
-             ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
 
-                           "client sent unknown \"Transfer-Encoding\": \"%V\"",
 
-                           &r->headers_in.transfer_encoding->value);
 
-             ngx_http_finalize_request(r, NGX_HTTP_NOT_IMPLEMENTED);
 
-             return NGX_ERROR;
 
-         }
 
-     }
 
 
-     if (r->headers_in.connection_type == NGX_HTTP_CONNECTION_KEEP_ALIVE) {
 
-         if (r->headers_in.keep_alive) {
 
-             r->headers_in.keep_alive_n =
 
-                             ngx_atotm(r->headers_in.keep_alive->value.data,
 
-                                       r->headers_in.keep_alive->value.len);
 
-         }
 
-     }
 
 
-     return NGX_OK;
 
- }
 
 
 
- void
 
- ngx_http_process_request(ngx_http_request_t *r)
 
- {
 
-     ngx_connection_t  *c;
 
 
-     c = r->connection;
 
 
- #if (NGX_HTTP_SSL)
 
 
-     if (r->http_connection->ssl) {
 
-         long                      rc;
 
-         X509                     *cert;
 
-         ngx_http_ssl_srv_conf_t  *sscf;
 
 
-         if (c->ssl == NULL) {
 
-             ngx_log_error(NGX_LOG_INFO, c->log, 0,
 
-                           "client sent plain HTTP request to HTTPS port");
 
-             ngx_http_finalize_request(r, NGX_HTTP_TO_HTTPS);
 
-             return;
 
-         }
 
 
-         sscf = ngx_http_get_module_srv_conf(r, ngx_http_ssl_module);
 
 
-         if (sscf->verify) {
 
-             rc = SSL_get_verify_result(c->ssl->connection);
 
 
-             if (rc != X509_V_OK
 
-                 && (sscf->verify != 3 || !ngx_ssl_verify_error_optional(rc)))
 
-             {
 
-                 ngx_log_error(NGX_LOG_INFO, c->log, 0,
 
-                               "client SSL certificate verify error: (%l:%s)",
 
-                               rc, X509_verify_cert_error_string(rc));
 
 
-                 ngx_ssl_remove_cached_session(sscf->ssl.ctx,
 
-                                        (SSL_get0_session(c->ssl->connection)));
 
 
-                 ngx_http_finalize_request(r, NGX_HTTPS_CERT_ERROR);
 
-                 return;
 
-             }
 
 
-             if (sscf->verify == 1) {
 
-                 cert = SSL_get_peer_certificate(c->ssl->connection);
 
 
-                 if (cert == NULL) {
 
-                     ngx_log_error(NGX_LOG_INFO, c->log, 0,
 
-                                   "client sent no required SSL certificate");
 
 
-                     ngx_ssl_remove_cached_session(sscf->ssl.ctx,
 
-                                        (SSL_get0_session(c->ssl->connection)));
 
 
-                     ngx_http_finalize_request(r, NGX_HTTPS_NO_CERT);
 
-                     return;
 
-                 }
 
 
-                 X509_free(cert);
 
-             }
 
-         }
 
-     }
 
 
- #endif
 
 
-     if (c->read->timer_set) {
 
-         ngx_del_timer(c->read);
 
-     }
 
 
- #if (NGX_STAT_STUB)
 
-     (void) ngx_atomic_fetch_add(ngx_stat_reading, -1);
 
-     r->stat_reading = 0;
 
-     (void) ngx_atomic_fetch_add(ngx_stat_writing, 1);
 
-     r->stat_writing = 1;
 
- #endif
 
 
-     c->read->handler = ngx_http_request_handler;
 
-     c->write->handler = ngx_http_request_handler;
 
-     r->read_event_handler = ngx_http_block_reading;
 
 
-     ngx_http_handler(r);
 
 
-     ngx_http_run_posted_requests(c);
 
- }
 
 
 
- static ngx_int_t
 
- ngx_http_validate_host(ngx_str_t *host, ngx_pool_t *pool, ngx_uint_t alloc)
 
- {
 
-     u_char  *h, ch;
 
-     size_t   i, dot_pos, host_len;
 
 
-     enum {
 
-         sw_usual = 0,
 
-         sw_literal,
 
-         sw_rest
 
-     } state;
 
 
-     dot_pos = host->len;
 
-     host_len = host->len;
 
 
-     h = host->data;
 
 
-     state = sw_usual;
 
 
-     for (i = 0; i < host->len; i++) {
 
-         ch = h[i];
 
 
-         switch (ch) {
 
 
-         case '.':
 
-             if (dot_pos == i - 1) {
 
-                 return NGX_DECLINED;
 
-             }
 
-             dot_pos = i;
 
-             break;
 
 
-         case ':':
 
-             if (state == sw_usual) {
 
-                 host_len = i;
 
-                 state = sw_rest;
 
-             }
 
-             break;
 
 
-         case '[':
 
-             if (i == 0) {
 
-                 state = sw_literal;
 
-             }
 
-             break;
 
 
-         case ']':
 
-             if (state == sw_literal) {
 
-                 host_len = i + 1;
 
-                 state = sw_rest;
 
-             }
 
-             break;
 
 
-         case '\0':
 
-             return NGX_DECLINED;
 
 
-         default:
 
 
-             if (ngx_path_separator(ch)) {
 
-                 return NGX_DECLINED;
 
-             }
 
 
-             if (ch >= 'A' && ch <= 'Z') {
 
-                 alloc = 1;
 
-             }
 
 
-             break;
 
-         }
 
-     }
 
 
-     if (dot_pos == host_len - 1) {
 
-         host_len--;
 
-     }
 
 
-     if (host_len == 0) {
 
-         return NGX_DECLINED;
 
-     }
 
 
-     if (alloc) {
 
-         host->data = ngx_pnalloc(pool, host_len);
 
-         if (host->data == NULL) {
 
-             return NGX_ERROR;
 
-         }
 
 
-         ngx_strlow(host->data, h, host_len);
 
-     }
 
 
-     host->len = host_len;
 
 
-     return NGX_OK;
 
- }
 
 
 
- static ngx_int_t
 
- ngx_http_set_virtual_server(ngx_http_request_t *r, ngx_str_t *host)
 
- {
 
-     ngx_int_t                  rc;
 
-     ngx_http_connection_t     *hc;
 
-     ngx_http_core_loc_conf_t  *clcf;
 
-     ngx_http_core_srv_conf_t  *cscf;
 
 
- #if (NGX_SUPPRESS_WARN)
 
-     cscf = NULL;
 
- #endif
 
 
-     hc = r->http_connection;
 
 
- #if (NGX_HTTP_SSL && defined SSL_CTRL_SET_TLSEXT_HOSTNAME)
 
 
-     if (hc->ssl_servername) {
 
-         if (hc->ssl_servername->len == host->len
 
-             && ngx_strncmp(hc->ssl_servername->data,
 
-                            host->data, host->len) == 0)
 
-         {
 
- #if (NGX_PCRE)
 
-             if (hc->ssl_servername_regex
 
-                 && ngx_http_regex_exec(r, hc->ssl_servername_regex,
 
-                                           hc->ssl_servername) != NGX_OK)
 
-             {
 
-                 ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
 
-                 return NGX_ERROR;
 
-             }
 
- #endif
 
-             return NGX_OK;
 
-         }
 
-     }
 
 
- #endif
 
 
-     rc = ngx_http_find_virtual_server(r->connection,
 
-                                       hc->addr_conf->virtual_names,
 
-                                       host, r, &cscf);
 
 
-     if (rc == NGX_ERROR) {
 
-         ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
 
-         return NGX_ERROR;
 
-     }
 
 
- #if (NGX_HTTP_SSL && defined SSL_CTRL_SET_TLSEXT_HOSTNAME)
 
 
-     if (hc->ssl_servername) {
 
-         ngx_http_ssl_srv_conf_t  *sscf;
 
 
-         if (rc == NGX_DECLINED) {
 
-             cscf = hc->addr_conf->default_server;
 
-             rc = NGX_OK;
 
-         }
 
 
-         sscf = ngx_http_get_module_srv_conf(cscf->ctx, ngx_http_ssl_module);
 
 
-         if (sscf->verify) {
 
-             ngx_log_error(NGX_LOG_INFO, r->connection->log, 0,
 
-                           "client attempted to request the server name "
 
-                           "different from that one was negotiated");
 
-             ngx_http_finalize_request(r, NGX_HTTP_BAD_REQUEST);
 
-             return NGX_ERROR;
 
-         }
 
-     }
 
 
- #endif
 
 
-     if (rc == NGX_DECLINED) {
 
-         return NGX_OK;
 
-     }
 
 
-     r->srv_conf = cscf->ctx->srv_conf;
 
-     r->loc_conf = cscf->ctx->loc_conf;
 
 
-     clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
 
 
-     ngx_http_set_connection_log(r->connection, clcf->error_log);
 
 
-     return NGX_OK;
 
- }
 
 
 
- static ngx_int_t
 
- ngx_http_find_virtual_server(ngx_connection_t *c,
 
-     ngx_http_virtual_names_t *virtual_names, ngx_str_t *host,
 
-     ngx_http_request_t *r, ngx_http_core_srv_conf_t **cscfp)
 
- {
 
-     ngx_http_core_srv_conf_t  *cscf;
 
 
-     if (virtual_names == NULL) {
 
-         return NGX_DECLINED;
 
-     }
 
 
-     cscf = ngx_hash_find_combined(&virtual_names->names,
 
-                                   ngx_hash_key(host->data, host->len),
 
-                                   host->data, host->len);
 
 
-     if (cscf) {
 
-         *cscfp = cscf;
 
-         return NGX_OK;
 
-     }
 
 
- #if (NGX_PCRE)
 
 
-     if (host->len && virtual_names->nregex) {
 
-         ngx_int_t                n;
 
-         ngx_uint_t               i;
 
-         ngx_http_server_name_t  *sn;
 
 
-         sn = virtual_names->regex;
 
 
- #if (NGX_HTTP_SSL && defined SSL_CTRL_SET_TLSEXT_HOSTNAME)
 
 
-         if (r == NULL) {
 
-             ngx_http_connection_t  *hc;
 
 
-             for (i = 0; i < virtual_names->nregex; i++) {
 
 
-                 n = ngx_regex_exec(sn[i].regex->regex, host, NULL, 0);
 
 
-                 if (n == NGX_REGEX_NO_MATCHED) {
 
-                     continue;
 
-                 }
 
 
-                 if (n >= 0) {
 
-                     hc = c->data;
 
-                     hc->ssl_servername_regex = sn[i].regex;
 
 
-                     *cscfp = sn[i].server;
 
-                     return NGX_OK;
 
-                 }
 
 
-                 ngx_log_error(NGX_LOG_ALERT, c->log, 0,
 
-                               ngx_regex_exec_n " failed: %i "
 
-                               "on \"%V\" using \"%V\"",
 
-                               n, host, &sn[i].regex->name);
 
 
-                 return NGX_ERROR;
 
-             }
 
 
-             return NGX_DECLINED;
 
-         }
 
 
- #endif 
 
 
-         for (i = 0; i < virtual_names->nregex; i++) {
 
 
-             n = ngx_http_regex_exec(r, sn[i].regex, host);
 
 
-             if (n == NGX_DECLINED) {
 
-                 continue;
 
-             }
 
 
-             if (n == NGX_OK) {
 
-                 *cscfp = sn[i].server;
 
-                 return NGX_OK;
 
-             }
 
 
-             return NGX_ERROR;
 
-         }
 
-     }
 
 
- #endif 
 
 
-     return NGX_DECLINED;
 
- }
 
 
 
- static void
 
- ngx_http_request_handler(ngx_event_t *ev)
 
- {
 
-     ngx_connection_t    *c;
 
-     ngx_http_request_t  *r;
 
 
-     c = ev->data;
 
-     r = c->data;
 
 
-     ngx_http_set_log_request(c->log, r);
 
 
-     ngx_log_debug2(NGX_LOG_DEBUG_HTTP, c->log, 0,
 
-                    "http run request: \"%V?%V\"", &r->uri, &r->args);
 
 
-     if (ev->write) {
 
-         r->write_event_handler(r);
 
 
-     } else {
 
-         r->read_event_handler(r);
 
-     }
 
 
-     ngx_http_run_posted_requests(c);
 
- }
 
 
 
- void
 
- ngx_http_run_posted_requests(ngx_connection_t *c)
 
- {
 
-     ngx_http_request_t         *r;
 
-     ngx_http_posted_request_t  *pr;
 
 
-     for ( ;; ) {
 
 
-         if (c->destroyed) {
 
-             return;
 
-         }
 
 
-         r = c->data;
 
-         pr = r->main->posted_requests;
 
 
-         if (pr == NULL) {
 
-             return;
 
-         }
 
 
-         r->main->posted_requests = pr->next;
 
 
-         r = pr->request;
 
 
-         ngx_http_set_log_request(c->log, r);
 
 
-         ngx_log_debug2(NGX_LOG_DEBUG_HTTP, c->log, 0,
 
-                        "http posted request: \"%V?%V\"", &r->uri, &r->args);
 
 
-         r->write_event_handler(r);
 
-     }
 
- }
 
 
 
- ngx_int_t
 
- ngx_http_post_request(ngx_http_request_t *r, ngx_http_posted_request_t *pr)
 
- {
 
-     ngx_http_posted_request_t  **p;
 
 
-     if (pr == NULL) {
 
-         pr = ngx_palloc(r->pool, sizeof(ngx_http_posted_request_t));
 
-         if (pr == NULL) {
 
-             return NGX_ERROR;
 
-         }
 
-     }
 
 
-     pr->request = r;
 
-     pr->next = NULL;
 
 
-     for (p = &r->main->posted_requests; *p; p = &(*p)->next) {  }
 
 
-     *p = pr;
 
 
-     return NGX_OK;
 
- }
 
 
 
- void
 
- ngx_http_finalize_request(ngx_http_request_t *r, ngx_int_t rc)
 
- {
 
-     ngx_connection_t          *c;
 
-     ngx_http_request_t        *pr;
 
-     ngx_http_core_loc_conf_t  *clcf;
 
 
-     c = r->connection;
 
 
-     ngx_log_debug5(NGX_LOG_DEBUG_HTTP, c->log, 0,
 
-                    "http finalize request: %d, \"%V?%V\" a:%d, c:%d",
 
-                    rc, &r->uri, &r->args, r == c->data, r->main->count);
 
 
-     if (rc == NGX_DONE) {
 
-         ngx_http_finalize_connection(r);
 
-         return;
 
-     }
 
 
-     if (rc == NGX_OK && r->filter_finalize) {
 
-         c->error = 1;
 
-     }
 
 
-     if (rc == NGX_DECLINED) {
 
-         r->content_handler = NULL;
 
-         r->write_event_handler = ngx_http_core_run_phases;
 
-         ngx_http_core_run_phases(r);
 
-         return;
 
-     }
 
 
-     if (r != r->main && r->post_subrequest) {
 
-         rc = r->post_subrequest->handler(r, r->post_subrequest->data, rc);
 
-     }
 
 
-     if (rc == NGX_ERROR
 
-         || rc == NGX_HTTP_REQUEST_TIME_OUT
 
-         || rc == NGX_HTTP_CLIENT_CLOSED_REQUEST
 
-         || c->error)
 
-     {
 
-         if (ngx_http_post_action(r) == NGX_OK) {
 
-             return;
 
-         }
 
 
-         if (r->main->blocked) {
 
-             r->write_event_handler = ngx_http_request_finalizer;
 
-         }
 
 
-         ngx_http_terminate_request(r, rc);
 
-         return;
 
-     }
 
 
-     if (rc >= NGX_HTTP_SPECIAL_RESPONSE
 
-         || rc == NGX_HTTP_CREATED
 
-         || rc == NGX_HTTP_NO_CONTENT)
 
-     {
 
-         if (rc == NGX_HTTP_CLOSE) {
 
-             ngx_http_terminate_request(r, rc);
 
-             return;
 
-         }
 
 
-         if (r == r->main) {
 
-             if (c->read->timer_set) {
 
-                 ngx_del_timer(c->read);
 
-             }
 
 
-             if (c->write->timer_set) {
 
-                 ngx_del_timer(c->write);
 
-             }
 
-         }
 
 
-         c->read->handler = ngx_http_request_handler;
 
-         c->write->handler = ngx_http_request_handler;
 
 
-         ngx_http_finalize_request(r, ngx_http_special_response_handler(r, rc));
 
-         return;
 
-     }
 
 
-     if (r != r->main) {
 
 
-         if (r->buffered || r->postponed) {
 
 
-             if (ngx_http_set_write_handler(r) != NGX_OK) {
 
-                 ngx_http_terminate_request(r, 0);
 
-             }
 
 
-             return;
 
-         }
 
 
-         pr = r->parent;
 
 
-         if (r == c->data) {
 
 
-             r->main->count--;
 
-             r->main->subrequests++;
 
 
-             if (!r->logged) {
 
 
-                 clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
 
 
-                 if (clcf->log_subrequest) {
 
-                     ngx_http_log_request(r);
 
-                 }
 
 
-                 r->logged = 1;
 
 
-             } else {
 
-                 ngx_log_error(NGX_LOG_ALERT, c->log, 0,
 
-                               "subrequest: \"%V?%V\" logged again",
 
-                               &r->uri, &r->args);
 
-             }
 
 
-             r->done = 1;
 
 
-             if (pr->postponed && pr->postponed->request == r) {
 
-                 pr->postponed = pr->postponed->next;
 
-             }
 
 
-             c->data = pr;
 
 
-         } else {
 
 
-             ngx_log_debug2(NGX_LOG_DEBUG_HTTP, c->log, 0,
 
-                            "http finalize non-active request: \"%V?%V\"",
 
-                            &r->uri, &r->args);
 
 
-             r->write_event_handler = ngx_http_request_finalizer;
 
 
-             if (r->waited) {
 
-                 r->done = 1;
 
-             }
 
-         }
 
 
-         if (ngx_http_post_request(pr, NULL) != NGX_OK) {
 
-             r->main->count++;
 
-             ngx_http_terminate_request(r, 0);
 
-             return;
 
-         }
 
 
-         ngx_log_debug2(NGX_LOG_DEBUG_HTTP, c->log, 0,
 
-                        "http wake parent request: \"%V?%V\"",
 
-                        &pr->uri, &pr->args);
 
 
-         return;
 
-     }
 
 
-     if (r->buffered || c->buffered || r->postponed || r->blocked) {
 
 
-         if (ngx_http_set_write_handler(r) != NGX_OK) {
 
-             ngx_http_terminate_request(r, 0);
 
-         }
 
 
-         return;
 
-     }
 
 
-     if (r != c->data) {
 
-         ngx_log_error(NGX_LOG_ALERT, c->log, 0,
 
-                       "http finalize non-active request: \"%V?%V\"",
 
-                       &r->uri, &r->args);
 
-         return;
 
-     }
 
 
-     r->done = 1;
 
-     r->write_event_handler = ngx_http_request_empty_handler;
 
 
-     if (!r->post_action) {
 
-         r->request_complete = 1;
 
-     }
 
 
-     if (ngx_http_post_action(r) == NGX_OK) {
 
-         return;
 
-     }
 
 
-     if (c->read->timer_set) {
 
-         ngx_del_timer(c->read);
 
-     }
 
 
-     if (c->write->timer_set) {
 
-         c->write->delayed = 0;
 
-         ngx_del_timer(c->write);
 
-     }
 
 
-     if (c->read->eof) {
 
-         ngx_http_close_request(r, 0);
 
-         return;
 
-     }
 
 
-     ngx_http_finalize_connection(r);
 
- }
 
 
 
- static void
 
- ngx_http_terminate_request(ngx_http_request_t *r, ngx_int_t rc)
 
- {
 
-     ngx_http_cleanup_t    *cln;
 
-     ngx_http_request_t    *mr;
 
-     ngx_http_ephemeral_t  *e;
 
 
-     mr = r->main;
 
 
-     ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
 
-                    "http terminate request count:%d", mr->count);
 
 
-     if (rc > 0 && (mr->headers_out.status == 0 || mr->connection->sent == 0)) {
 
-         mr->headers_out.status = rc;
 
-     }
 
 
-     cln = mr->cleanup;
 
-     mr->cleanup = NULL;
 
 
-     while (cln) {
 
-         if (cln->handler) {
 
-             cln->handler(cln->data);
 
-         }
 
 
-         cln = cln->next;
 
-     }
 
 
-     ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
 
-                    "http terminate cleanup count:%d blk:%d",
 
-                    mr->count, mr->blocked);
 
 
-     if (mr->write_event_handler) {
 
 
-         if (mr->blocked) {
 
-             return;
 
-         }
 
 
-         e = ngx_http_ephemeral(mr);
 
-         mr->posted_requests = NULL;
 
-         mr->write_event_handler = ngx_http_terminate_handler;
 
-         (void) ngx_http_post_request(mr, &e->terminal_posted_request);
 
-         return;
 
-     }
 
 
-     ngx_http_close_request(mr, rc);
 
- }
 
 
 
- static void
 
- ngx_http_terminate_handler(ngx_http_request_t *r)
 
- {
 
-     ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
 
-                    "http terminate handler count:%d", r->count);
 
 
-     r->count = 1;
 
 
-     ngx_http_close_request(r, 0);
 
- }
 
 
 
- static void
 
- ngx_http_finalize_connection(ngx_http_request_t *r)
 
- {
 
-     ngx_http_core_loc_conf_t  *clcf;
 
 
- #if (NGX_HTTP_SPDY)
 
-     if (r->spdy_stream) {
 
-         ngx_http_close_request(r, 0);
 
-         return;
 
-     }
 
- #endif
 
 
-     clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
 
 
-     if (r->main->count != 1) {
 
 
-         if (r->discard_body) {
 
-             r->read_event_handler = ngx_http_discarded_request_body_handler;
 
-             ngx_add_timer(r->connection->read, clcf->lingering_timeout);
 
 
-             if (r->lingering_time == 0) {
 
-                 r->lingering_time = ngx_time()
 
-                                       + (time_t) (clcf->lingering_time / 1000);
 
-             }
 
-         }
 
 
-         ngx_http_close_request(r, 0);
 
-         return;
 
-     }
 
 
-     if (!ngx_terminate
 
-          && !ngx_exiting
 
-          && r->keepalive
 
-          && clcf->keepalive_timeout > 0)
 
-     {
 
-         ngx_http_set_keepalive(r);
 
-         return;
 
-     }
 
 
-     if (clcf->lingering_close == NGX_HTTP_LINGERING_ALWAYS
 
-         || (clcf->lingering_close == NGX_HTTP_LINGERING_ON
 
-             && (r->lingering_close
 
-                 || r->header_in->pos < r->header_in->last
 
-                 || r->connection->read->ready)))
 
-     {
 
-         ngx_http_set_lingering_close(r);
 
-         return;
 
-     }
 
 
-     ngx_http_close_request(r, 0);
 
- }
 
 
 
- static ngx_int_t
 
- ngx_http_set_write_handler(ngx_http_request_t *r)
 
- {
 
-     ngx_event_t               *wev;
 
-     ngx_http_core_loc_conf_t  *clcf;
 
 
-     r->http_state = NGX_HTTP_WRITING_REQUEST_STATE;
 
 
-     r->read_event_handler = r->discard_body ?
 
-                                 ngx_http_discarded_request_body_handler:
 
-                                 ngx_http_test_reading;
 
-     r->write_event_handler = ngx_http_writer;
 
 
- #if (NGX_HTTP_SPDY)
 
-     if (r->spdy_stream) {
 
-         return NGX_OK;
 
-     }
 
- #endif
 
 
-     wev = r->connection->write;
 
 
-     if (wev->ready && wev->delayed) {
 
-         return NGX_OK;
 
-     }
 
 
-     clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
 
-     if (!wev->delayed) {
 
-         ngx_add_timer(wev, clcf->send_timeout);
 
-     }
 
 
-     if (ngx_handle_write_event(wev, clcf->send_lowat) != NGX_OK) {
 
-         ngx_http_close_request(r, 0);
 
-         return NGX_ERROR;
 
-     }
 
 
-     return NGX_OK;
 
- }
 
 
 
- static void
 
- ngx_http_writer(ngx_http_request_t *r)
 
- {
 
-     int                        rc;
 
-     ngx_event_t               *wev;
 
-     ngx_connection_t          *c;
 
-     ngx_http_core_loc_conf_t  *clcf;
 
 
-     c = r->connection;
 
-     wev = c->write;
 
 
-     ngx_log_debug2(NGX_LOG_DEBUG_HTTP, wev->log, 0,
 
-                    "http writer handler: \"%V?%V\"", &r->uri, &r->args);
 
 
-     clcf = ngx_http_get_module_loc_conf(r->main, ngx_http_core_module);
 
 
-     if (wev->timedout) {
 
-         if (!wev->delayed) {
 
-             ngx_log_error(NGX_LOG_INFO, c->log, NGX_ETIMEDOUT,
 
-                           "client timed out");
 
-             c->timedout = 1;
 
 
-             ngx_http_finalize_request(r, NGX_HTTP_REQUEST_TIME_OUT);
 
-             return;
 
-         }
 
 
-         wev->timedout = 0;
 
-         wev->delayed = 0;
 
 
-         if (!wev->ready) {
 
-             ngx_add_timer(wev, clcf->send_timeout);
 
 
-             if (ngx_handle_write_event(wev, clcf->send_lowat) != NGX_OK) {
 
-                 ngx_http_close_request(r, 0);
 
-             }
 
 
-             return;
 
-         }
 
 
-     }
 
 
-     if (wev->delayed || r->aio) {
 
-         ngx_log_debug0(NGX_LOG_DEBUG_HTTP, wev->log, 0,
 
-                        "http writer delayed");
 
 
-         if (ngx_handle_write_event(wev, clcf->send_lowat) != NGX_OK) {
 
-             ngx_http_close_request(r, 0);
 
-         }
 
 
-         return;
 
-     }
 
 
-     rc = ngx_http_output_filter(r, NULL);
 
 
-     ngx_log_debug3(NGX_LOG_DEBUG_HTTP, c->log, 0,
 
-                    "http writer output filter: %d, \"%V?%V\"",
 
-                    rc, &r->uri, &r->args);
 
 
-     if (rc == NGX_ERROR) {
 
-         ngx_http_finalize_request(r, rc);
 
-         return;
 
-     }
 
 
-     if (r->buffered || r->postponed || (r == r->main && c->buffered)) {
 
 
- #if (NGX_HTTP_SPDY)
 
-         if (r->spdy_stream) {
 
-             return;
 
-         }
 
- #endif
 
 
-         if (!wev->delayed) {
 
-             ngx_add_timer(wev, clcf->send_timeout);
 
-         }
 
 
-         if (ngx_handle_write_event(wev, clcf->send_lowat) != NGX_OK) {
 
-             ngx_http_close_request(r, 0);
 
-         }
 
 
-         return;
 
-     }
 
 
-     ngx_log_debug2(NGX_LOG_DEBUG_HTTP, wev->log, 0,
 
-                    "http writer done: \"%V?%V\"", &r->uri, &r->args);
 
 
-     r->write_event_handler = ngx_http_request_empty_handler;
 
 
-     ngx_http_finalize_request(r, rc);
 
- }
 
 
 
- static void
 
- ngx_http_request_finalizer(ngx_http_request_t *r)
 
- {
 
-     ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
 
-                    "http finalizer done: \"%V?%V\"", &r->uri, &r->args);
 
 
-     ngx_http_finalize_request(r, 0);
 
- }
 
 
 
- void
 
- ngx_http_block_reading(ngx_http_request_t *r)
 
- {
 
-     ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
 
-                    "http reading blocked");
 
 
-     
 
 
-     if ((ngx_event_flags & NGX_USE_LEVEL_EVENT)
 
-         && r->connection->read->active)
 
-     {
 
-         if (ngx_del_event(r->connection->read, NGX_READ_EVENT, 0) != NGX_OK) {
 
-             ngx_http_close_request(r, 0);
 
-         }
 
-     }
 
- }
 
 
 
- void
 
- ngx_http_test_reading(ngx_http_request_t *r)
 
- {
 
-     int                n;
 
-     char               buf[1];
 
-     ngx_err_t          err;
 
-     ngx_event_t       *rev;
 
-     ngx_connection_t  *c;
 
 
-     c = r->connection;
 
-     rev = c->read;
 
 
-     ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "http test reading");
 
 
- #if (NGX_HTTP_SPDY)
 
 
-     if (r->spdy_stream) {
 
-         if (c->error) {
 
-             err = 0;
 
-             goto closed;
 
-         }
 
 
-         return;
 
-     }
 
 
- #endif
 
 
- #if (NGX_HAVE_KQUEUE)
 
 
-     if (ngx_event_flags & NGX_USE_KQUEUE_EVENT) {
 
 
-         if (!rev->pending_eof) {
 
-             return;
 
-         }
 
 
-         rev->eof = 1;
 
-         c->error = 1;
 
-         err = rev->kq_errno;
 
 
-         goto closed;
 
-     }
 
 
- #endif
 
 
- #if (NGX_HAVE_EPOLLRDHUP)
 
 
-     if ((ngx_event_flags & NGX_USE_EPOLL_EVENT) && rev->pending_eof) {
 
-         socklen_t  len;
 
 
-         rev->eof = 1;
 
-         c->error = 1;
 
 
-         err = 0;
 
-         len = sizeof(ngx_err_t);
 
 
-         
 
 
-         if (getsockopt(c->fd, SOL_SOCKET, SO_ERROR, (void *) &err, &len)
 
-             == -1)
 
-         {
 
-             err = ngx_socket_errno;
 
-         }
 
 
-         goto closed;
 
-     }
 
 
- #endif
 
 
-     n = recv(c->fd, buf, 1, MSG_PEEK);
 
 
-     if (n == 0) {
 
-         rev->eof = 1;
 
-         c->error = 1;
 
-         err = 0;
 
 
-         goto closed;
 
 
-     } else if (n == -1) {
 
-         err = ngx_socket_errno;
 
 
-         if (err != NGX_EAGAIN) {
 
-             rev->eof = 1;
 
-             c->error = 1;
 
 
-             goto closed;
 
-         }
 
-     }
 
 
-     
 
 
-     if ((ngx_event_flags & NGX_USE_LEVEL_EVENT) && rev->active) {
 
 
-         if (ngx_del_event(rev, NGX_READ_EVENT, 0) != NGX_OK) {
 
-             ngx_http_close_request(r, 0);
 
-         }
 
-     }
 
 
-     return;
 
 
- closed:
 
 
-     if (err) {
 
-         rev->error = 1;
 
-     }
 
 
-     ngx_log_error(NGX_LOG_INFO, c->log, err,
 
-                   "client prematurely closed connection");
 
 
-     ngx_http_finalize_request(r, NGX_HTTP_CLIENT_CLOSED_REQUEST);
 
- }
 
 
 
- static void
 
- ngx_http_set_keepalive(ngx_http_request_t *r)
 
- {
 
-     int                        tcp_nodelay;
 
-     ngx_int_t                  i;
 
-     ngx_buf_t                 *b, *f;
 
-     ngx_event_t               *rev, *wev;
 
-     ngx_connection_t          *c;
 
-     ngx_http_connection_t     *hc;
 
-     ngx_http_core_srv_conf_t  *cscf;
 
-     ngx_http_core_loc_conf_t  *clcf;
 
 
-     c = r->connection;
 
-     rev = c->read;
 
 
-     clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
 
 
-     ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "set http keepalive handler");
 
 
-     if (r->discard_body) {
 
-         r->write_event_handler = ngx_http_request_empty_handler;
 
-         r->lingering_time = ngx_time() + (time_t) (clcf->lingering_time / 1000);
 
-         ngx_add_timer(rev, clcf->lingering_timeout);
 
-         return;
 
-     }
 
 
-     c->log->action = "closing request";
 
 
-     hc = r->http_connection;
 
-     b = r->header_in;
 
 
-     if (b->pos < b->last) {
 
 
-         
 
 
-         if (b != c->buffer) {
 
 
-             
 
 
-             cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
 
 
-             if (hc->free == NULL) {
 
-                 hc->free = ngx_palloc(c->pool,
 
-                   cscf->large_client_header_buffers.num * sizeof(ngx_buf_t *));
 
 
-                 if (hc->free == NULL) {
 
-                     ngx_http_close_request(r, 0);
 
-                     return;
 
-                 }
 
-             }
 
 
-             for (i = 0; i < hc->nbusy - 1; i++) {
 
-                 f = hc->busy[i];
 
-                 hc->free[hc->nfree++] = f;
 
-                 f->pos = f->start;
 
-                 f->last = f->start;
 
-             }
 
 
-             hc->busy[0] = b;
 
-             hc->nbusy = 1;
 
-         }
 
-     }
 
 
-     
 
-     r->keepalive = 0;
 
 
-     ngx_http_free_request(r, 0);
 
 
-     c->data = hc;
 
 
-     if (ngx_handle_read_event(rev, 0) != NGX_OK) {
 
-         ngx_http_close_connection(c);
 
-         return;
 
-     }
 
 
-     wev = c->write;
 
-     wev->handler = ngx_http_empty_handler;
 
 
-     if (b->pos < b->last) {
 
 
-         ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "pipelined request");
 
 
-         c->log->action = "reading client pipelined request line";
 
 
-         r = ngx_http_create_request(c);
 
-         if (r == NULL) {
 
-             ngx_http_close_connection(c);
 
-             return;
 
-         }
 
 
-         r->pipeline = 1;
 
 
-         c->data = r;
 
 
-         c->sent = 0;
 
-         c->destroyed = 0;
 
 
-         if (rev->timer_set) {
 
-             ngx_del_timer(rev);
 
-         }
 
 
-         rev->handler = ngx_http_process_request_line;
 
-         ngx_post_event(rev, &ngx_posted_events);
 
-         return;
 
-     }
 
 
-     
 
 
-     b = c->buffer;
 
 
-     if (ngx_pfree(c->pool, b->start) == NGX_OK) {
 
 
-         
 
 
-         b->pos = NULL;
 
 
-     } else {
 
-         b->pos = b->start;
 
-         b->last = b->start;
 
-     }
 
 
-     ngx_log_debug2(NGX_LOG_DEBUG_HTTP, c->log, 0, "hc free: %p %d",
 
-                    hc->free, hc->nfree);
 
 
-     if (hc->free) {
 
-         for (i = 0; i < hc->nfree; i++) {
 
-             ngx_pfree(c->pool, hc->free[i]->start);
 
-             hc->free[i] = NULL;
 
-         }
 
 
-         hc->nfree = 0;
 
-     }
 
 
-     ngx_log_debug2(NGX_LOG_DEBUG_HTTP, c->log, 0, "hc busy: %p %d",
 
-                    hc->busy, hc->nbusy);
 
 
-     if (hc->busy) {
 
-         for (i = 0; i < hc->nbusy; i++) {
 
-             ngx_pfree(c->pool, hc->busy[i]->start);
 
-             hc->busy[i] = NULL;
 
-         }
 
 
-         hc->nbusy = 0;
 
-     }
 
 
- #if (NGX_HTTP_SSL)
 
-     if (c->ssl) {
 
-         ngx_ssl_free_buffer(c);
 
-     }
 
- #endif
 
 
-     rev->handler = ngx_http_keepalive_handler;
 
 
-     if (wev->active && (ngx_event_flags & NGX_USE_LEVEL_EVENT)) {
 
-         if (ngx_del_event(wev, NGX_WRITE_EVENT, 0) != NGX_OK) {
 
-             ngx_http_close_connection(c);
 
-             return;
 
-         }
 
-     }
 
 
-     c->log->action = "keepalive";
 
 
-     if (c->tcp_nopush == NGX_TCP_NOPUSH_SET) {
 
-         if (ngx_tcp_push(c->fd) == -1) {
 
-             ngx_connection_error(c, ngx_socket_errno, ngx_tcp_push_n " failed");
 
-             ngx_http_close_connection(c);
 
-             return;
 
-         }
 
 
-         c->tcp_nopush = NGX_TCP_NOPUSH_UNSET;
 
-         tcp_nodelay = ngx_tcp_nodelay_and_tcp_nopush ? 1 : 0;
 
 
-     } else {
 
-         tcp_nodelay = 1;
 
-     }
 
 
-     if (tcp_nodelay
 
-         && clcf->tcp_nodelay
 
-         && c->tcp_nodelay == NGX_TCP_NODELAY_UNSET)
 
-     {
 
-         ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "tcp_nodelay");
 
 
-         if (setsockopt(c->fd, IPPROTO_TCP, TCP_NODELAY,
 
-                        (const void *) &tcp_nodelay, sizeof(int))
 
-             == -1)
 
-         {
 
- #if (NGX_SOLARIS)
 
-             
 
-             c->log_error = NGX_ERROR_IGNORE_EINVAL;
 
- #endif
 
 
-             ngx_connection_error(c, ngx_socket_errno,
 
-                                  "setsockopt(TCP_NODELAY) failed");
 
 
-             c->log_error = NGX_ERROR_INFO;
 
-             ngx_http_close_connection(c);
 
-             return;
 
-         }
 
 
-         c->tcp_nodelay = NGX_TCP_NODELAY_SET;
 
-     }
 
 
- #if 0
 
- #endif
 
 
-     c->idle = 1;
 
-     ngx_reusable_connection(c, 1);
 
 
-     ngx_add_timer(rev, clcf->keepalive_timeout);
 
 
-     if (rev->ready) {
 
-         ngx_post_event(rev, &ngx_posted_events);
 
-     }
 
- }
 
 
 
- static void
 
- ngx_http_keepalive_handler(ngx_event_t *rev)
 
- {
 
-     size_t             size;
 
-     ssize_t            n;
 
-     ngx_buf_t         *b;
 
-     ngx_connection_t  *c;
 
 
-     c = rev->data;
 
 
-     ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0, "http keepalive handler");
 
 
-     if (rev->timedout || c->close) {
 
-         ngx_http_close_connection(c);
 
-         return;
 
-     }
 
 
- #if (NGX_HAVE_KQUEUE)
 
 
-     if (ngx_event_flags & NGX_USE_KQUEUE_EVENT) {
 
-         if (rev->pending_eof) {
 
-             c->log->handler = NULL;
 
-             ngx_log_error(NGX_LOG_INFO, c->log, rev->kq_errno,
 
-                           "kevent() reported that client %V closed "
 
-                           "keepalive connection", &c->addr_text);
 
- #if (NGX_HTTP_SSL)
 
-             if (c->ssl) {
 
-                 c->ssl->no_send_shutdown = 1;
 
-             }
 
- #endif
 
-             ngx_http_close_connection(c);
 
-             return;
 
-         }
 
-     }
 
 
- #endif
 
 
-     b = c->buffer;
 
-     size = b->end - b->start;
 
 
-     if (b->pos == NULL) {
 
 
-         
 
 
-         b->pos = ngx_palloc(c->pool, size);
 
-         if (b->pos == NULL) {
 
-             ngx_http_close_connection(c);
 
-             return;
 
-         }
 
 
-         b->start = b->pos;
 
-         b->last = b->pos;
 
-         b->end = b->pos + size;
 
-     }
 
 
-     
 
 
-     c->log_error = NGX_ERROR_IGNORE_ECONNRESET;
 
-     ngx_set_socket_errno(0);
 
 
-     n = c->recv(c, b->last, size);
 
-     c->log_error = NGX_ERROR_INFO;
 
 
-     if (n == NGX_AGAIN) {
 
-         if (ngx_handle_read_event(rev, 0) != NGX_OK) {
 
-             ngx_http_close_connection(c);
 
-             return;
 
-         }
 
 
-         
 
 
-         if (ngx_pfree(c->pool, b->start) == NGX_OK) {
 
 
-             
 
 
-             b->pos = NULL;
 
-         }
 
 
-         return;
 
-     }
 
 
-     if (n == NGX_ERROR) {
 
-         ngx_http_close_connection(c);
 
-         return;
 
-     }
 
 
-     c->log->handler = NULL;
 
 
-     if (n == 0) {
 
-         ngx_log_error(NGX_LOG_INFO, c->log, ngx_socket_errno,
 
-                       "client %V closed keepalive connection", &c->addr_text);
 
-         ngx_http_close_connection(c);
 
-         return;
 
-     }
 
 
-     b->last += n;
 
 
-     c->log->handler = ngx_http_log_error;
 
-     c->log->action = "reading client request line";
 
 
-     c->idle = 0;
 
-     ngx_reusable_connection(c, 0);
 
 
-     c->data = ngx_http_create_request(c);
 
-     if (c->data == NULL) {
 
-         ngx_http_close_connection(c);
 
-         return;
 
-     }
 
 
-     c->sent = 0;
 
-     c->destroyed = 0;
 
 
-     ngx_del_timer(rev);
 
 
-     rev->handler = ngx_http_process_request_line;
 
-     ngx_http_process_request_line(rev);
 
- }
 
 
 
- static void
 
- ngx_http_set_lingering_close(ngx_http_request_t *r)
 
- {
 
-     ngx_event_t               *rev, *wev;
 
-     ngx_connection_t          *c;
 
-     ngx_http_core_loc_conf_t  *clcf;
 
 
-     c = r->connection;
 
 
-     clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
 
 
-     rev = c->read;
 
-     rev->handler = ngx_http_lingering_close_handler;
 
 
-     r->lingering_time = ngx_time() + (time_t) (clcf->lingering_time / 1000);
 
-     ngx_add_timer(rev, clcf->lingering_timeout);
 
 
-     if (ngx_handle_read_event(rev, 0) != NGX_OK) {
 
-         ngx_http_close_request(r, 0);
 
-         return;
 
-     }
 
 
-     wev = c->write;
 
-     wev->handler = ngx_http_empty_handler;
 
 
-     if (wev->active && (ngx_event_flags & NGX_USE_LEVEL_EVENT)) {
 
-         if (ngx_del_event(wev, NGX_WRITE_EVENT, 0) != NGX_OK) {
 
-             ngx_http_close_request(r, 0);
 
-             return;
 
-         }
 
-     }
 
 
-     if (ngx_shutdown_socket(c->fd, NGX_WRITE_SHUTDOWN) == -1) {
 
-         ngx_connection_error(c, ngx_socket_errno,
 
-                              ngx_shutdown_socket_n " failed");
 
-         ngx_http_close_request(r, 0);
 
-         return;
 
-     }
 
 
-     if (rev->ready) {
 
-         ngx_http_lingering_close_handler(rev);
 
-     }
 
- }
 
 
 
- static void
 
- ngx_http_lingering_close_handler(ngx_event_t *rev)
 
- {
 
-     ssize_t                    n;
 
-     ngx_msec_t                 timer;
 
-     ngx_connection_t          *c;
 
-     ngx_http_request_t        *r;
 
-     ngx_http_core_loc_conf_t  *clcf;
 
-     u_char                     buffer[NGX_HTTP_LINGERING_BUFFER_SIZE];
 
 
-     c = rev->data;
 
-     r = c->data;
 
 
-     ngx_log_debug0(NGX_LOG_DEBUG_HTTP, c->log, 0,
 
-                    "http lingering close handler");
 
 
-     if (rev->timedout) {
 
-         ngx_http_close_request(r, 0);
 
-         return;
 
-     }
 
 
-     timer = (ngx_msec_t) r->lingering_time - (ngx_msec_t) ngx_time();
 
-     if ((ngx_msec_int_t) timer <= 0) {
 
-         ngx_http_close_request(r, 0);
 
-         return;
 
-     }
 
 
-     do {
 
-         n = c->recv(c, buffer, NGX_HTTP_LINGERING_BUFFER_SIZE);
 
 
-         ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0, "lingering read: %d", n);
 
 
-         if (n == NGX_ERROR || n == 0) {
 
-             ngx_http_close_request(r, 0);
 
-             return;
 
-         }
 
 
-     } while (rev->ready);
 
 
-     if (ngx_handle_read_event(rev, 0) != NGX_OK) {
 
-         ngx_http_close_request(r, 0);
 
-         return;
 
-     }
 
 
-     clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
 
 
-     timer *= 1000;
 
 
-     if (timer > clcf->lingering_timeout) {
 
-         timer = clcf->lingering_timeout;
 
-     }
 
 
-     ngx_add_timer(rev, timer);
 
- }
 
 
 
- void
 
- ngx_http_empty_handler(ngx_event_t *wev)
 
- {
 
-     ngx_log_debug0(NGX_LOG_DEBUG_HTTP, wev->log, 0, "http empty handler");
 
 
-     return;
 
- }
 
 
 
- void
 
- ngx_http_request_empty_handler(ngx_http_request_t *r)
 
- {
 
-     ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
 
-                    "http request empty handler");
 
 
-     return;
 
- }
 
 
 
- ngx_int_t
 
- ngx_http_send_special(ngx_http_request_t *r, ngx_uint_t flags)
 
- {
 
-     ngx_buf_t    *b;
 
-     ngx_chain_t   out;
 
 
-     b = ngx_calloc_buf(r->pool);
 
-     if (b == NULL) {
 
-         return NGX_ERROR;
 
-     }
 
 
-     if (flags & NGX_HTTP_LAST) {
 
 
-         if (r == r->main && !r->post_action) {
 
-             b->last_buf = 1;
 
 
-         } else {
 
-             b->sync = 1;
 
-             b->last_in_chain = 1;
 
-         }
 
-     }
 
 
-     if (flags & NGX_HTTP_FLUSH) {
 
-         b->flush = 1;
 
-     }
 
 
-     out.buf = b;
 
-     out.next = NULL;
 
 
-     return ngx_http_output_filter(r, &out);
 
- }
 
 
 
- static ngx_int_t
 
- ngx_http_post_action(ngx_http_request_t *r)
 
- {
 
-     ngx_http_core_loc_conf_t  *clcf;
 
 
-     clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
 
 
-     if (clcf->post_action.data == NULL) {
 
-         return NGX_DECLINED;
 
-     }
 
 
-     if (r->post_action && r->uri_changes == 0) {
 
-         return NGX_DECLINED;
 
-     }
 
 
-     ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
 
-                    "post action: \"%V\"", &clcf->post_action);
 
 
-     r->main->count--;
 
 
-     r->http_version = NGX_HTTP_VERSION_9;
 
-     r->header_only = 1;
 
-     r->post_action = 1;
 
 
-     r->read_event_handler = ngx_http_block_reading;
 
 
-     if (clcf->post_action.data[0] == '/') {
 
-         ngx_http_internal_redirect(r, &clcf->post_action, NULL);
 
 
-     } else {
 
-         ngx_http_named_location(r, &clcf->post_action);
 
-     }
 
 
-     return NGX_OK;
 
- }
 
 
 
- static void
 
- ngx_http_close_request(ngx_http_request_t *r, ngx_int_t rc)
 
- {
 
-     ngx_connection_t  *c;
 
 
-     r = r->main;
 
-     c = r->connection;
 
 
-     ngx_log_debug2(NGX_LOG_DEBUG_HTTP, c->log, 0,
 
-                    "http request count:%d blk:%d", r->count, r->blocked);
 
 
-     if (r->count == 0) {
 
-         ngx_log_error(NGX_LOG_ALERT, c->log, 0, "http request count is zero");
 
-     }
 
 
-     r->count--;
 
 
-     if (r->count || r->blocked) {
 
-         return;
 
-     }
 
 
- #if (NGX_HTTP_SPDY)
 
-     if (r->spdy_stream) {
 
-         ngx_http_spdy_close_stream(r->spdy_stream, rc);
 
-         return;
 
-     }
 
- #endif
 
 
-     ngx_http_free_request(r, rc);
 
-     ngx_http_close_connection(c);
 
- }
 
 
 
- void
 
- ngx_http_free_request(ngx_http_request_t *r, ngx_int_t rc)
 
- {
 
-     ngx_log_t                 *log;
 
-     ngx_pool_t                *pool;
 
-     struct linger              linger;
 
-     ngx_http_cleanup_t        *cln;
 
-     ngx_http_log_ctx_t        *ctx;
 
-     ngx_http_core_loc_conf_t  *clcf;
 
 
-     log = r->connection->log;
 
 
-     ngx_log_debug0(NGX_LOG_DEBUG_HTTP, log, 0, "http close request");
 
 
-     if (r->pool == NULL) {
 
-         ngx_log_error(NGX_LOG_ALERT, log, 0, "http request already closed");
 
-         return;
 
-     }
 
 
-     cln = r->cleanup;
 
-     r->cleanup = NULL;
 
 
-     while (cln) {
 
-         if (cln->handler) {
 
-             cln->handler(cln->data);
 
-         }
 
 
-         cln = cln->next;
 
-     }
 
 
- #if (NGX_STAT_STUB)
 
 
-     if (r->stat_reading) {
 
-         (void) ngx_atomic_fetch_add(ngx_stat_reading, -1);
 
-     }
 
 
-     if (r->stat_writing) {
 
-         (void) ngx_atomic_fetch_add(ngx_stat_writing, -1);
 
-     }
 
 
- #endif
 
 
-     if (rc > 0 && (r->headers_out.status == 0 || r->connection->sent == 0)) {
 
-         r->headers_out.status = rc;
 
-     }
 
 
-     log->action = "logging request";
 
 
-     ngx_http_log_request(r);
 
 
-     log->action = "closing request";
 
 
-     if (r->connection->timedout) {
 
-         clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
 
 
-         if (clcf->reset_timedout_connection) {
 
-             linger.l_onoff = 1;
 
-             linger.l_linger = 0;
 
 
-             if (setsockopt(r->connection->fd, SOL_SOCKET, SO_LINGER,
 
-                            (const void *) &linger, sizeof(struct linger)) == -1)
 
-             {
 
-                 ngx_log_error(NGX_LOG_ALERT, log, ngx_socket_errno,
 
-                               "setsockopt(SO_LINGER) failed");
 
-             }
 
-         }
 
-     }
 
 
-     
 
-     ctx = log->data;
 
-     ctx->request = NULL;
 
 
-     r->request_line.len = 0;
 
 
-     r->connection->destroyed = 1;
 
 
-     
 
 
-     pool = r->pool;
 
-     r->pool = NULL;
 
 
-     ngx_destroy_pool(pool);
 
- }
 
 
 
- static void
 
- ngx_http_log_request(ngx_http_request_t *r)
 
- {
 
-     ngx_uint_t                  i, n;
 
-     ngx_http_handler_pt        *log_handler;
 
-     ngx_http_core_main_conf_t  *cmcf;
 
 
-     cmcf = ngx_http_get_module_main_conf(r, ngx_http_core_module);
 
 
-     log_handler = cmcf->phases[NGX_HTTP_LOG_PHASE].handlers.elts;
 
-     n = cmcf->phases[NGX_HTTP_LOG_PHASE].handlers.nelts;
 
 
-     for (i = 0; i < n; i++) {
 
-         log_handler[i](r);
 
-     }
 
- }
 
 
 
- void
 
- ngx_http_close_connection(ngx_connection_t *c)
 
- {
 
-     ngx_pool_t  *pool;
 
 
-     ngx_log_debug1(NGX_LOG_DEBUG_HTTP, c->log, 0,
 
-                    "close http connection: %d", c->fd);
 
 
- #if (NGX_HTTP_SSL)
 
 
-     if (c->ssl) {
 
-         if (ngx_ssl_shutdown(c) == NGX_AGAIN) {
 
-             c->ssl->handler = ngx_http_close_connection;
 
-             return;
 
-         }
 
-     }
 
 
- #endif
 
 
- #if (NGX_STAT_STUB)
 
-     (void) ngx_atomic_fetch_add(ngx_stat_active, -1);
 
- #endif
 
 
-     c->destroyed = 1;
 
 
-     pool = c->pool;
 
 
-     ngx_close_connection(c);
 
 
-     ngx_destroy_pool(pool);
 
- }
 
 
 
- static u_char *
 
- ngx_http_log_error(ngx_log_t *log, u_char *buf, size_t len)
 
- {
 
-     u_char              *p;
 
-     ngx_http_request_t  *r;
 
-     ngx_http_log_ctx_t  *ctx;
 
 
-     if (log->action) {
 
-         p = ngx_snprintf(buf, len, " while %s", log->action);
 
-         len -= p - buf;
 
-         buf = p;
 
-     }
 
 
-     ctx = log->data;
 
 
-     p = ngx_snprintf(buf, len, ", client: %V", &ctx->connection->addr_text);
 
-     len -= p - buf;
 
 
-     r = ctx->request;
 
 
-     if (r) {
 
-         return r->log_handler(r, ctx->current_request, p, len);
 
 
-     } else {
 
-         p = ngx_snprintf(p, len, ", server: %V",
 
-                          &ctx->connection->listening->addr_text);
 
-     }
 
 
-     return p;
 
- }
 
 
 
- static u_char *
 
- ngx_http_log_error_handler(ngx_http_request_t *r, ngx_http_request_t *sr,
 
-     u_char *buf, size_t len)
 
- {
 
-     char                      *uri_separator;
 
-     u_char                    *p;
 
-     ngx_http_upstream_t       *u;
 
-     ngx_http_core_srv_conf_t  *cscf;
 
 
-     cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
 
 
-     p = ngx_snprintf(buf, len, ", server: %V", &cscf->server_name);
 
-     len -= p - buf;
 
-     buf = p;
 
 
-     if (r->request_line.data == NULL && r->request_start) {
 
-         for (p = r->request_start; p < r->header_in->last; p++) {
 
-             if (*p == CR || *p == LF) {
 
-                 break;
 
-             }
 
-         }
 
 
-         r->request_line.len = p - r->request_start;
 
-         r->request_line.data = r->request_start;
 
-     }
 
 
-     if (r->request_line.len) {
 
-         p = ngx_snprintf(buf, len, ", request: \"%V\"", &r->request_line);
 
-         len -= p - buf;
 
-         buf = p;
 
-     }
 
 
-     if (r != sr) {
 
-         p = ngx_snprintf(buf, len, ", subrequest: \"%V\"", &sr->uri);
 
-         len -= p - buf;
 
-         buf = p;
 
-     }
 
 
-     u = sr->upstream;
 
 
-     if (u && u->peer.name) {
 
 
-         uri_separator = "";
 
 
- #if (NGX_HAVE_UNIX_DOMAIN)
 
-         if (u->peer.sockaddr && u->peer.sockaddr->sa_family == AF_UNIX) {
 
-             uri_separator = ":";
 
-         }
 
- #endif
 
 
-         p = ngx_snprintf(buf, len, ", upstream: \"%V%V%s%V\"",
 
-                          &u->schema, u->peer.name,
 
-                          uri_separator, &u->uri);
 
-         len -= p - buf;
 
-         buf = p;
 
-     }
 
 
-     if (r->headers_in.host) {
 
-         p = ngx_snprintf(buf, len, ", host: \"%V\"",
 
-                          &r->headers_in.host->value);
 
-         len -= p - buf;
 
-         buf = p;
 
-     }
 
 
-     if (r->headers_in.referer) {
 
-         p = ngx_snprintf(buf, len, ", referrer: \"%V\"",
 
-                          &r->headers_in.referer->value);
 
-         buf = p;
 
-     }
 
 
-     return buf;
 
- }
 
 
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