2002-08-07 00:39:45 +08:00
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#include <ngx_config.h>
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2002-08-26 23:18:19 +08:00
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#include <ngx_core.h>
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#include <ngx_string.h>
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2002-09-02 22:48:24 +08:00
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#include <ngx_files.h>
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2002-08-07 00:39:45 +08:00
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#include <ngx_log.h>
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#include <ngx_alloc.h>
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2002-12-03 00:09:40 +08:00
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#include <ngx_array.h>
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#include <ngx_table.h>
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2002-08-07 00:39:45 +08:00
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#include <ngx_hunk.h>
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#include <ngx_connection.h>
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2002-12-15 14:25:09 +08:00
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#include <ngx_inet.h>
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2002-08-07 00:39:45 +08:00
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#include <ngx_http.h>
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2002-09-11 23:18:33 +08:00
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#include <ngx_http_config.h>
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2002-09-16 23:01:44 +08:00
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#include <ngx_http_core.h>
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2002-08-07 00:39:45 +08:00
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2002-09-02 22:48:24 +08:00
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/* STUB */
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#include <ngx_http_output_filter.h>
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int ngx_http_static_handler(ngx_http_request_t *r);
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2002-09-11 23:18:33 +08:00
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int ngx_http_index_handler(ngx_http_request_t *r);
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2002-12-03 00:09:40 +08:00
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int ngx_http_proxy_handler(ngx_http_request_t *r);
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2002-12-11 02:05:12 +08:00
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/**/
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2002-09-02 22:48:24 +08:00
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2002-08-26 23:18:19 +08:00
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int ngx_http_init_connection(ngx_connection_t *c);
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2002-08-07 00:39:45 +08:00
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static int ngx_http_init_request(ngx_event_t *ev);
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2002-12-11 02:05:12 +08:00
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static int ngx_http_process_request_header(ngx_event_t *ev);
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2002-08-07 00:39:45 +08:00
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2002-08-30 00:59:54 +08:00
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static int ngx_http_process_request_line(ngx_http_request_t *r);
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2002-12-11 02:05:12 +08:00
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static int ngx_http_process_request_headers(ngx_http_request_t *r);
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2002-09-02 22:48:24 +08:00
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static int ngx_http_process_request_header_line(ngx_http_request_t *r);
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2002-08-07 00:39:45 +08:00
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2002-12-15 14:25:09 +08:00
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static int ngx_http_event_request_handler(ngx_http_request_t *r);
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2002-09-02 22:48:24 +08:00
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static int ngx_http_writer(ngx_event_t *ev);
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2002-12-15 14:25:09 +08:00
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static int ngx_http_block_read(ngx_event_t *ev);
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static int ngx_http_read_discarded_body(ngx_event_t *ev);
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2002-09-13 22:47:42 +08:00
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static int ngx_http_keepalive_handler(ngx_event_t *ev);
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2002-12-15 14:25:09 +08:00
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static int ngx_http_set_lingering_close(ngx_http_request_t *r);
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static int ngx_http_lingering_close_handler(ngx_event_t *ev);
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2002-09-12 22:42:29 +08:00
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2002-12-11 02:05:12 +08:00
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#if 0
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int ngx_http_special_response(ngx_http_request_t *r, int error);
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int ngx_http_redirect(ngx_http_request_t *r, int redirect);
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int ngx_http_error(ngx_http_request_t *r, int error);
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int ngx_http_close_request(ngx_http_request_t *r);
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#endif
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2002-08-07 00:39:45 +08:00
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2002-10-05 01:58:04 +08:00
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static int ngx_http_close_connection(ngx_event_t *ev);
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2002-08-26 23:18:19 +08:00
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static size_t ngx_http_log_error(void *data, char *buf, size_t len);
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2002-08-07 00:39:45 +08:00
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2002-08-26 23:18:19 +08:00
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2002-08-30 00:59:54 +08:00
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static char *header_errors[] = {
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"client %s sent invalid method",
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"client %s sent invalid request",
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2002-09-13 22:47:42 +08:00
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"client %s sent too long URI",
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2002-08-30 00:59:54 +08:00
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"client %s sent HEAD method in HTTP/0.9 request"
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};
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2002-12-03 00:09:40 +08:00
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static ngx_http_header_t headers_in[] = {
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{ 4, "Host", offsetof(ngx_http_headers_in_t, host) },
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{ 10, "Connection", offsetof(ngx_http_headers_in_t, connection) },
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2002-12-15 14:25:09 +08:00
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{ 17, "If-Modified-Since",
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offsetof(ngx_http_headers_in_t,if_modified_since) },
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2002-12-03 00:09:40 +08:00
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{ 10, "User-Agent", offsetof(ngx_http_headers_in_t, user_agent) },
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{ 0, NULL, 0 }
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};
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2002-08-07 00:39:45 +08:00
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int ngx_http_init_connection(ngx_connection_t *c)
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{
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2002-08-26 23:18:19 +08:00
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ngx_event_t *ev;
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struct sockaddr *addr;
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2002-09-16 23:01:44 +08:00
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ngx_http_server_t *srv;
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2002-08-26 23:18:19 +08:00
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ngx_http_log_ctx_t *ctx;
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2002-08-07 00:39:45 +08:00
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ev = c->read;
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ev->event_handler = ngx_http_init_request;
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2002-10-05 01:58:04 +08:00
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2002-09-16 23:01:44 +08:00
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srv = (ngx_http_server_t *) c->server;
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2002-08-07 00:39:45 +08:00
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2002-09-13 22:47:42 +08:00
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ngx_test_null(c->pool,
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ngx_create_pool(srv->connection_pool_size, ev->log),
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NGX_ERROR);
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2002-08-07 00:39:45 +08:00
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2002-10-05 01:58:04 +08:00
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ngx_test_null(c->requests, ngx_create_array(c->pool, 10, sizeof(char *)),
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NGX_ERROR);
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ev->close_handler = ngx_http_close_connection;
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c->write->close_handler = ngx_http_close_connection;
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2002-08-26 23:18:19 +08:00
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ngx_test_null(addr, ngx_palloc(c->pool, c->socklen), NGX_ERROR);
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ngx_memcpy(addr, c->sockaddr, c->socklen);
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c->sockaddr = addr;
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2002-12-11 02:05:12 +08:00
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ngx_test_null(c->addr_text.data, ngx_palloc(c->pool, c->addr_text.len),
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2002-08-26 23:18:19 +08:00
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NGX_ERROR);
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2002-12-11 02:05:12 +08:00
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2002-12-17 23:48:27 +08:00
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c->addr_text.len = ngx_inet_ntop(c->family,
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(char *)c->sockaddr + c->addr,
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c->addr_text.data, c->addr_text.len);
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2002-12-19 15:08:55 +08:00
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if (c->addr_text.len == 0)
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2002-12-17 23:48:27 +08:00
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return NGX_ERROR;
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2002-08-26 23:18:19 +08:00
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ngx_test_null(ctx, ngx_pcalloc(c->pool, sizeof(ngx_http_log_ctx_t)),
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NGX_ERROR);
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2002-12-11 02:05:12 +08:00
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ctx->client = c->addr_text.data;
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2002-08-26 23:18:19 +08:00
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ctx->action = "reading client request line";
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c->log->data = ctx;
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c->log->handler = ngx_http_log_error;
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2002-08-07 00:39:45 +08:00
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#if (HAVE_DEFERRED_ACCEPT)
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2002-08-30 00:59:54 +08:00
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if (ev->ready) {
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2002-08-07 00:39:45 +08:00
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return ngx_http_init_request(ev);
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2002-08-30 00:59:54 +08:00
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} else {
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2002-08-07 00:39:45 +08:00
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#endif
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2002-12-11 02:05:12 +08:00
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/* STUB: post_accept_timeout should be in http_conf */
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2002-08-30 00:59:54 +08:00
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ngx_add_timer(ev, c->post_accept_timeout);
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2002-08-26 23:18:19 +08:00
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#if (USE_KQUEUE)
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2002-08-07 00:39:45 +08:00
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return ngx_add_event(ev, NGX_READ_EVENT, NGX_CLEAR_EVENT);
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#else
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2002-08-26 23:18:19 +08:00
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#if (HAVE_AIO_EVENT)
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if (ngx_event_type == NGX_AIO_EVENT)
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return ngx_http_init_request(ev);
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else
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#endif
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#if (HAVE_CLEAR_EVENT)
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if (ngx_event_type == NGX_KQUEUE_EVENT)
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return ngx_add_event(ev, NGX_READ_EVENT, NGX_CLEAR_EVENT);
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else
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#endif
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2002-08-30 00:59:54 +08:00
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return ngx_add_event(ev, NGX_READ_EVENT, NGX_LEVEL_EVENT);
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#endif /* USE_KQUEUE */
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#if (HAVE_DEFERRED_ACCEPT)
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}
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2002-08-07 00:39:45 +08:00
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#endif
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}
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2002-08-26 23:18:19 +08:00
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2002-09-13 22:47:42 +08:00
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static int ngx_http_init_request(ngx_event_t *ev)
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2002-08-07 00:39:45 +08:00
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{
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2002-08-26 23:18:19 +08:00
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ngx_connection_t *c;
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ngx_http_server_t *srv;
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ngx_http_request_t *r;
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2002-08-07 00:39:45 +08:00
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2002-08-26 23:18:19 +08:00
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c = (ngx_connection_t *) ev->data;
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srv = (ngx_http_server_t *) c->server;
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2002-08-07 00:39:45 +08:00
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2002-08-26 23:18:19 +08:00
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ngx_test_null(r, ngx_pcalloc(c->pool, sizeof(ngx_http_request_t)),
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NGX_ERROR);
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2002-08-07 00:39:45 +08:00
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c->data = r;
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r->connection = c;
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2002-08-20 22:48:28 +08:00
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r->server = srv;
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2002-12-15 14:25:09 +08:00
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r->file.fd = NGX_INVALID_FILE;
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2002-08-07 00:39:45 +08:00
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2002-12-11 02:05:12 +08:00
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/* STUB */
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2002-09-11 23:18:33 +08:00
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r->srv_conf = ngx_srv_conf;
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r->loc_conf = ngx_loc_conf;
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2002-12-11 02:05:12 +08:00
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/**/
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2002-09-11 23:18:33 +08:00
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2002-09-16 23:01:44 +08:00
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if (c->buffer == NULL) {
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ngx_test_null(c->buffer,
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ngx_create_temp_hunk(c->pool, srv->header_buffer_size,
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0, 0),
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NGX_ERROR);
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} else {
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r->header_read = 1;
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}
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r->header_in = c->buffer;
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2002-09-02 22:48:24 +08:00
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ngx_test_null(r->pool, ngx_create_pool(srv->request_pool_size, ev->log),
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2002-08-30 00:59:54 +08:00
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ngx_http_close_request(r));
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2002-08-07 00:39:45 +08:00
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2002-09-11 23:18:33 +08:00
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ngx_test_null(r->ctx, ngx_pcalloc(r->pool, sizeof(void *) * ngx_max_module),
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ngx_http_close_request(r));
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2002-12-15 14:25:09 +08:00
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r->headers_out.headers = ngx_create_table(r->pool, 10);
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r->headers_out.content_length = -1;
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r->headers_out.last_modified_time = -1;
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2002-12-11 02:05:12 +08:00
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ev->event_handler = ngx_http_process_request_header;
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2002-08-30 00:59:54 +08:00
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r->state_handler = ngx_http_process_request_line;
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2002-09-13 22:47:42 +08:00
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r->header_timeout = 1;
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2002-08-26 23:18:19 +08:00
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2002-12-11 02:05:12 +08:00
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return ngx_http_process_request_header(ev);
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2002-08-07 00:39:45 +08:00
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}
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2002-08-26 23:18:19 +08:00
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2002-12-11 02:05:12 +08:00
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static int ngx_http_process_request_header(ngx_event_t *ev)
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2002-08-07 00:39:45 +08:00
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{
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2002-08-30 00:59:54 +08:00
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int n, rc;
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2002-08-26 23:18:19 +08:00
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ngx_connection_t *c ;
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ngx_http_request_t *r;
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2002-09-13 22:47:42 +08:00
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ngx_http_log_ctx_t *ctx;
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2002-08-26 23:18:19 +08:00
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c = (ngx_connection_t *) ev->data;
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r = (ngx_http_request_t *) c->data;
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2002-08-07 00:39:45 +08:00
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ngx_log_debug(ev->log, "http process request");
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2002-09-16 23:01:44 +08:00
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if (r->header_read) {
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r->header_read = 0;
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ngx_log_debug(ev->log, "http preread %d" _
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r->header_in->last.mem - r->header_in->pos.mem);
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2002-08-07 00:39:45 +08:00
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2002-09-16 23:01:44 +08:00
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} else {
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n = ngx_event_recv(c, r->header_in->last.mem,
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r->header_in->end - r->header_in->last.mem);
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if (n == NGX_AGAIN) {
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if (r->header_timeout) {
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r->header_timeout = 0;
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ngx_del_timer(ev);
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2002-12-11 02:05:12 +08:00
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/* STUB: r->server->header_timeout
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OR r->srv_conf->header_timeout ? */
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2002-09-16 23:01:44 +08:00
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ngx_add_timer(ev, r->server->header_timeout);
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}
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return NGX_AGAIN;
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2002-08-30 00:59:54 +08:00
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}
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2002-08-07 00:39:45 +08:00
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2002-09-16 23:01:44 +08:00
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if (n == NGX_ERROR)
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return ngx_http_close_request(r);
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2002-08-30 00:59:54 +08:00
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2002-09-16 23:01:44 +08:00
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ngx_log_debug(ev->log, "http read %d" _ n);
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2002-08-07 00:39:45 +08:00
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2002-09-16 23:01:44 +08:00
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if (n == 0) {
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2002-12-11 02:05:12 +08:00
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ngx_log_error(NGX_LOG_INFO, c->log, 0,
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"client has prematurely closed connection");
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2002-09-16 23:01:44 +08:00
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return ngx_http_close_request(r);
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}
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2002-08-07 00:39:45 +08:00
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2002-09-16 23:01:44 +08:00
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r->header_in->last.mem += n;
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}
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2002-08-07 00:39:45 +08:00
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2002-08-30 00:59:54 +08:00
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/* state_handlers are called in following order:
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ngx_http_process_request_line(r)
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2002-12-11 02:05:12 +08:00
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ngx_http_process_request_headers(r) */
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2002-08-07 00:39:45 +08:00
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2002-08-30 00:59:54 +08:00
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do {
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rc = (r->state_handler)(r);
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2002-08-07 00:39:45 +08:00
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2002-08-30 00:59:54 +08:00
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if (rc == NGX_ERROR)
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return rc;
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2002-08-07 00:39:45 +08:00
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2002-12-11 02:05:12 +08:00
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} while (rc == NGX_AGAIN && r->header_in->pos.mem < r->header_in->last.mem);
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2002-09-02 22:48:24 +08:00
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2002-09-13 22:47:42 +08:00
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if (r->header_timeout) {
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r->header_timeout = 0;
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2002-08-30 00:59:54 +08:00
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ngx_del_timer(ev);
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|
|
ngx_add_timer(ev, r->server->header_timeout);
|
|
|
|
}
|
|
|
|
|
2002-12-11 02:05:12 +08:00
|
|
|
if (rc == NGX_OK)
|
2002-12-15 14:25:09 +08:00
|
|
|
return ngx_http_event_request_handler(r);
|
2002-12-11 02:05:12 +08:00
|
|
|
else
|
|
|
|
return rc;
|
2002-08-07 00:39:45 +08:00
|
|
|
}
|
|
|
|
|
2002-09-13 22:47:42 +08:00
|
|
|
|
2002-08-30 00:59:54 +08:00
|
|
|
static int ngx_http_process_request_line(ngx_http_request_t *r)
|
2002-08-07 00:39:45 +08:00
|
|
|
{
|
2002-10-05 01:58:04 +08:00
|
|
|
int rc, len;
|
|
|
|
char **request;
|
|
|
|
ngx_connection_t *c;
|
2002-08-30 00:59:54 +08:00
|
|
|
ngx_http_log_ctx_t *ctx;
|
|
|
|
|
|
|
|
rc = ngx_read_http_request_line(r);
|
|
|
|
|
2002-10-05 01:58:04 +08:00
|
|
|
c = r->connection;
|
|
|
|
|
2002-08-30 00:59:54 +08:00
|
|
|
if (rc == NGX_OK) {
|
2002-12-15 14:25:09 +08:00
|
|
|
r->uri.len = (r->args_start ? r->args_start - 1 : r->uri_end)
|
|
|
|
- r->uri_start;
|
2002-12-11 02:05:12 +08:00
|
|
|
ngx_test_null(r->uri.data, ngx_palloc(r->pool, r->uri.len + 1),
|
2002-08-30 00:59:54 +08:00
|
|
|
ngx_http_close_request(r));
|
2002-12-11 02:05:12 +08:00
|
|
|
ngx_cpystrn(r->uri.data, r->uri_start, r->uri.len + 1);
|
2002-08-07 00:39:45 +08:00
|
|
|
|
2002-12-03 23:45:38 +08:00
|
|
|
r->request_line.len = r->request_end - r->header_in->start;
|
|
|
|
ngx_test_null(r->request_line.data,
|
|
|
|
ngx_palloc(r->pool, r->request_line.len + 1),
|
|
|
|
ngx_http_close_request(r));
|
|
|
|
ngx_cpystrn(r->request_line.data, r->header_in->start,
|
|
|
|
r->request_line.len + 1);
|
|
|
|
|
|
|
|
/* TEMP */
|
2002-10-05 01:58:04 +08:00
|
|
|
ngx_test_null(request, ngx_push_array(c->requests),
|
|
|
|
ngx_http_close_request(r));
|
|
|
|
|
|
|
|
if (r->request_end)
|
|
|
|
len = r->request_end - r->header_in->start + 1;
|
|
|
|
else
|
|
|
|
len = 1;
|
|
|
|
c->requests_len += len;
|
|
|
|
ngx_test_null(*request, ngx_palloc(c->pool, len),
|
|
|
|
ngx_http_close_request(r));
|
|
|
|
ngx_cpystrn(*request, r->header_in->start, len);
|
|
|
|
|
|
|
|
ngx_log_debug(c->log, "REQ: '%s'" _ *request);
|
2002-12-03 23:45:38 +08:00
|
|
|
/* */
|
2002-10-05 01:58:04 +08:00
|
|
|
|
2002-09-16 23:01:44 +08:00
|
|
|
if (r->uri_ext) {
|
2002-12-15 14:25:09 +08:00
|
|
|
r->exten.len = (r->args_start ? r->args_start - 1 : r->uri_end)
|
|
|
|
- r->uri_ext;
|
2002-12-11 02:05:12 +08:00
|
|
|
ngx_test_null(r->exten.data,
|
|
|
|
ngx_palloc(r->pool, r->exten.len + 1),
|
2002-09-16 23:01:44 +08:00
|
|
|
ngx_http_close_request(r));
|
2002-12-11 02:05:12 +08:00
|
|
|
ngx_cpystrn(r->exten.data, r->uri_ext, r->exten.len + 1);
|
2002-09-16 23:01:44 +08:00
|
|
|
}
|
|
|
|
|
|
|
|
ngx_log_debug(r->connection->log, "HTTP: %d, %d, %s %s" _
|
2002-12-11 02:05:12 +08:00
|
|
|
r->method _ r->http_version _
|
|
|
|
r->uri.data _ r->exten.data);
|
2002-08-30 00:59:54 +08:00
|
|
|
|
2002-09-02 22:48:24 +08:00
|
|
|
if (r->http_version == 9)
|
2002-12-11 02:05:12 +08:00
|
|
|
return NGX_OK;
|
2002-08-30 00:59:54 +08:00
|
|
|
|
2002-09-13 22:47:42 +08:00
|
|
|
/* TODO: check too long URI - no space for header, compact buffer */
|
|
|
|
|
2002-12-03 00:09:40 +08:00
|
|
|
r->headers_in.headers = ngx_create_table(r->pool, 10);
|
|
|
|
|
2002-12-11 02:05:12 +08:00
|
|
|
r->state_handler = ngx_http_process_request_headers;
|
2002-09-02 22:48:24 +08:00
|
|
|
ctx = r->connection->log->data;
|
|
|
|
ctx->action = "reading client request headers";
|
2002-08-30 00:59:54 +08:00
|
|
|
|
2002-12-11 02:05:12 +08:00
|
|
|
return NGX_AGAIN;
|
2002-08-07 00:39:45 +08:00
|
|
|
}
|
|
|
|
|
2002-09-13 22:47:42 +08:00
|
|
|
if (r->header_in->last.mem >= r->header_in->end) {
|
2002-12-07 00:32:33 +08:00
|
|
|
rc = NGX_HTTP_PARSE_TOO_LONG_URI;
|
2002-09-13 22:47:42 +08:00
|
|
|
|
|
|
|
} else if (rc == NGX_AGAIN) {
|
|
|
|
return NGX_AGAIN;
|
|
|
|
}
|
|
|
|
|
2002-08-30 00:59:54 +08:00
|
|
|
ctx = r->connection->log->data;
|
2002-09-02 22:48:24 +08:00
|
|
|
r->connection->log->handler = NULL;
|
2002-09-13 22:47:42 +08:00
|
|
|
ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
|
|
|
|
header_errors[rc - NGX_HTTP_PARSE_INVALID_METHOD],
|
|
|
|
ctx->client);
|
2002-08-30 00:59:54 +08:00
|
|
|
r->connection->log->handler = ngx_http_log_error;
|
|
|
|
|
2002-09-13 22:47:42 +08:00
|
|
|
return ngx_http_error(r, (rc == NGX_HTTP_PARSE_TOO_LONG_URI) ?
|
|
|
|
NGX_HTTP_REQUEST_URI_TOO_LARGE:
|
|
|
|
NGX_HTTP_BAD_REQUEST);
|
2002-08-07 00:39:45 +08:00
|
|
|
}
|
|
|
|
|
2002-09-13 22:47:42 +08:00
|
|
|
|
2002-12-11 02:05:12 +08:00
|
|
|
static int ngx_http_process_request_headers(ngx_http_request_t *r)
|
2002-08-07 00:39:45 +08:00
|
|
|
{
|
2002-08-30 00:59:54 +08:00
|
|
|
int rc;
|
|
|
|
ngx_http_log_ctx_t *ctx;
|
2002-08-07 00:39:45 +08:00
|
|
|
|
2002-08-30 00:59:54 +08:00
|
|
|
for ( ;; ) {
|
2002-12-11 02:05:12 +08:00
|
|
|
rc = ngx_read_http_header_line(r, r->header_in);
|
2002-08-30 00:59:54 +08:00
|
|
|
|
2002-09-13 22:47:42 +08:00
|
|
|
/* TODO: check too long header, compact buffer */
|
|
|
|
|
2002-08-30 00:59:54 +08:00
|
|
|
if (rc == NGX_OK) {
|
2002-09-02 22:48:24 +08:00
|
|
|
if (ngx_http_process_request_header_line(r) == NGX_ERROR)
|
|
|
|
return ngx_http_error(r, NGX_HTTP_BAD_REQUEST);
|
|
|
|
|
2002-09-13 22:47:42 +08:00
|
|
|
} else if (rc == NGX_HTTP_PARSE_HEADER_DONE) {
|
2002-09-02 22:48:24 +08:00
|
|
|
ngx_log_debug(r->connection->log, "HTTP header done");
|
2002-12-15 14:25:09 +08:00
|
|
|
|
|
|
|
if (r->http_version > NGX_HTTP_VERSION_10
|
|
|
|
&& r->headers_in.host == NULL)
|
|
|
|
{
|
|
|
|
return ngx_http_error(r, NGX_HTTP_BAD_REQUEST);
|
|
|
|
} else {
|
|
|
|
return NGX_OK;
|
|
|
|
}
|
2002-08-30 00:59:54 +08:00
|
|
|
|
|
|
|
} else if (rc == NGX_AGAIN) {
|
|
|
|
return NGX_AGAIN;
|
|
|
|
|
2002-09-13 22:47:42 +08:00
|
|
|
} else if (rc == NGX_HTTP_PARSE_INVALID_HEADER) {
|
2002-08-30 00:59:54 +08:00
|
|
|
ctx = r->connection->log->data;
|
2002-09-02 22:48:24 +08:00
|
|
|
r->connection->log->handler = NULL;
|
2002-09-13 22:47:42 +08:00
|
|
|
ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
|
2002-08-30 00:59:54 +08:00
|
|
|
"client %s sent invalid header", ctx->client);
|
|
|
|
r->connection->log->handler = ngx_http_log_error;
|
|
|
|
|
2002-09-02 22:48:24 +08:00
|
|
|
return ngx_http_error(r, NGX_HTTP_BAD_REQUEST);
|
2002-08-30 00:59:54 +08:00
|
|
|
}
|
|
|
|
}
|
2002-09-02 22:48:24 +08:00
|
|
|
}
|
2002-08-07 00:39:45 +08:00
|
|
|
|
2002-09-13 22:47:42 +08:00
|
|
|
|
2002-09-02 22:48:24 +08:00
|
|
|
static int ngx_http_process_request_header_line(ngx_http_request_t *r)
|
|
|
|
{
|
2002-12-03 00:09:40 +08:00
|
|
|
int i;
|
|
|
|
ngx_table_elt_t *h;
|
|
|
|
|
2002-12-03 23:45:38 +08:00
|
|
|
ngx_test_null(h, ngx_push_table(r->headers_in.headers), NGX_ERROR);
|
2002-12-03 00:09:40 +08:00
|
|
|
|
|
|
|
h->key.len = r->header_name_end - r->header_name_start;
|
|
|
|
ngx_test_null(h->key.data, ngx_palloc(r->pool, h->key.len + 1), NGX_ERROR);
|
|
|
|
ngx_cpystrn(h->key.data, r->header_name_start, h->key.len + 1);
|
|
|
|
|
|
|
|
h->value.len = r->header_end - r->header_start;
|
|
|
|
ngx_test_null(h->value.data, ngx_palloc(r->pool, h->value.len + 1),
|
|
|
|
NGX_ERROR);
|
|
|
|
ngx_cpystrn(h->value.data, r->header_start, h->value.len + 1);
|
|
|
|
|
|
|
|
for (i = 0; headers_in[i].len != 0; i++) {
|
|
|
|
if (headers_in[i].len == h->key.len) {
|
|
|
|
if (strcasecmp(headers_in[i].data, h->key.data) == 0) {
|
|
|
|
*((ngx_table_elt_t **)
|
|
|
|
((char *) &r->headers_in + headers_in[i].offset)) = h;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2002-09-02 22:48:24 +08:00
|
|
|
ngx_log_debug(r->connection->log, "HTTP header: '%s: %s'" _
|
2002-12-03 00:09:40 +08:00
|
|
|
h->key.data _ h->value.data);
|
2002-09-02 22:48:24 +08:00
|
|
|
|
|
|
|
return NGX_OK;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
2002-12-15 14:25:09 +08:00
|
|
|
static int ngx_http_event_request_handler(ngx_http_request_t *r)
|
2002-12-11 02:05:12 +08:00
|
|
|
{
|
|
|
|
int rc;
|
|
|
|
ngx_msec_t timeout;
|
|
|
|
|
|
|
|
ngx_del_timer(r->connection->read);
|
|
|
|
r->header_timeout = 0;
|
|
|
|
|
|
|
|
r->state_handler = NULL;
|
|
|
|
r->connection->read->event_handler = ngx_http_block_read;
|
|
|
|
|
|
|
|
rc = ngx_http_handler(r);
|
|
|
|
|
|
|
|
/* handler is still busy */
|
|
|
|
if (rc == NGX_WAITING)
|
|
|
|
return rc;
|
|
|
|
|
|
|
|
/* handler has done its work but transfer is not completed */
|
|
|
|
if (rc == NGX_AGAIN) {
|
|
|
|
#if (HAVE_CLEAR_EVENT)
|
|
|
|
if (ngx_add_event(r->connection->write, NGX_WRITE_EVENT,
|
|
|
|
NGX_CLEAR_EVENT) == NGX_ERROR) {
|
|
|
|
#else
|
|
|
|
if (ngx_add_event(r->connection->write, NGX_WRITE_EVENT,
|
|
|
|
NGX_ONESHOT_EVENT) == NGX_ERROR) {
|
|
|
|
#endif
|
|
|
|
return ngx_http_close_request(r);
|
|
|
|
}
|
|
|
|
|
|
|
|
if (r->connection->sent > 0) {
|
|
|
|
ngx_log_debug(r->connection->log, "sent: " QD_FMT _
|
|
|
|
r->connection->sent);
|
|
|
|
timeout = (ngx_msec_t) (r->connection->sent * 10);
|
|
|
|
ngx_log_debug(r->connection->log, "timeout: %d" _ timeout);
|
|
|
|
ngx_add_timer(r->connection->write, timeout);
|
|
|
|
|
|
|
|
} else {
|
|
|
|
ngx_add_timer(r->connection->write, 10000);
|
|
|
|
}
|
|
|
|
|
|
|
|
r->connection->write->event_handler = ngx_http_writer;
|
|
|
|
return rc;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (rc == NGX_ERROR) {
|
|
|
|
/* log http request */
|
|
|
|
return ngx_http_close_request(r);
|
|
|
|
}
|
|
|
|
|
|
|
|
if (rc >= NGX_HTTP_SPECIAL_RESPONSE)
|
|
|
|
return ngx_http_special_response(r, rc);
|
|
|
|
|
|
|
|
/* rc == NGX_OK */
|
|
|
|
|
|
|
|
if (!r->keepalive) {
|
|
|
|
if (r->lingering_close) {
|
|
|
|
return ngx_http_set_lingering_close(r);
|
|
|
|
|
|
|
|
} else {
|
|
|
|
return ngx_http_close_request(r);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
/* keepalive */
|
|
|
|
|
|
|
|
ngx_http_close_request(r);
|
|
|
|
r->connection->buffer->pos.mem = r->connection->buffer->last.mem
|
|
|
|
= r->connection->buffer->start;
|
|
|
|
r->connection->read->event_handler = ngx_http_keepalive_handler;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
2002-12-15 14:25:09 +08:00
|
|
|
static int ngx_http_writer(ngx_event_t *ev)
|
|
|
|
{
|
|
|
|
int rc;
|
|
|
|
ngx_msec_t timeout;
|
|
|
|
ngx_connection_t *c;
|
|
|
|
ngx_http_request_t *r;
|
|
|
|
ngx_http_core_loc_conf_t *conf;
|
|
|
|
|
|
|
|
c = (ngx_connection_t *) ev->data;
|
|
|
|
r = (ngx_http_request_t *) c->data;
|
|
|
|
|
|
|
|
c->sent = 0;
|
|
|
|
|
|
|
|
rc = ngx_http_output_filter(r, NULL);
|
|
|
|
|
|
|
|
ngx_log_debug(ev->log, "output filter in writer: %d" _ rc);
|
|
|
|
|
|
|
|
if (rc == NGX_AGAIN) {
|
|
|
|
|
|
|
|
if (c->sent > 0) {
|
|
|
|
conf = (ngx_http_core_loc_conf_t *)
|
|
|
|
ngx_get_module_loc_conf(r->main ? r->main : r,
|
|
|
|
ngx_http_core_module);
|
|
|
|
|
|
|
|
timeout = (ngx_msec_t) (c->sent * conf->send_timeout);
|
|
|
|
|
|
|
|
ngx_log_debug(ev->log, "sent: " QD_FMT _ c->sent);
|
|
|
|
ngx_log_debug(ev->log, "timeout: %d" _ timeout);
|
|
|
|
|
|
|
|
ngx_del_timer(ev);
|
|
|
|
ngx_add_timer(ev, timeout);
|
|
|
|
}
|
|
|
|
|
|
|
|
if (ev->oneshot)
|
|
|
|
if (ngx_add_event(r->connection->write, NGX_WRITE_EVENT,
|
|
|
|
NGX_ONESHOT_EVENT) == NGX_ERROR) {
|
|
|
|
return ngx_http_close_request(r);
|
|
|
|
}
|
|
|
|
|
|
|
|
return rc;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (rc == NGX_ERROR)
|
|
|
|
return rc;
|
|
|
|
|
|
|
|
/* rc == NGX_OK */
|
|
|
|
|
|
|
|
ngx_log_debug(ev->log, "http writer done");
|
|
|
|
|
|
|
|
if (!r->keepalive) {
|
|
|
|
if (r->lingering_close) {
|
|
|
|
ngx_http_set_lingering_close(r);
|
|
|
|
|
|
|
|
} else {
|
|
|
|
return ngx_http_close_request(r);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
/* keepalive */
|
|
|
|
|
|
|
|
ngx_http_close_request(r);
|
|
|
|
c->buffer->pos.mem = c->buffer->last.mem = c->buffer->start;
|
|
|
|
c->read->event_handler = ngx_http_keepalive_handler;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
2002-12-11 02:05:12 +08:00
|
|
|
static int ngx_http_block_read(ngx_event_t *ev)
|
|
|
|
{
|
|
|
|
ngx_log_debug(ev->log, "http read blocked");
|
|
|
|
|
|
|
|
ev->blocked = 1;
|
2002-12-15 14:25:09 +08:00
|
|
|
return ngx_del_event(ev, NGX_READ_EVENT, 0);
|
2002-12-11 02:05:12 +08:00
|
|
|
}
|
|
|
|
|
|
|
|
|
2002-12-15 14:25:09 +08:00
|
|
|
int ngx_http_discard_body(ngx_http_request_t *r)
|
2002-09-02 22:48:24 +08:00
|
|
|
{
|
|
|
|
ngx_log_debug(r->connection->log, "set discard body");
|
2002-08-07 00:39:45 +08:00
|
|
|
|
2002-08-30 00:59:54 +08:00
|
|
|
ngx_del_timer(r->connection->read);
|
|
|
|
|
2002-09-02 22:48:24 +08:00
|
|
|
if (r->client_content_length)
|
|
|
|
r->connection->read->event_handler = ngx_http_read_discarded_body;
|
2002-12-15 14:25:09 +08:00
|
|
|
|
|
|
|
return NGX_OK;
|
2002-08-07 00:39:45 +08:00
|
|
|
}
|
|
|
|
|
2002-12-11 02:05:12 +08:00
|
|
|
|
2002-09-02 22:48:24 +08:00
|
|
|
static int ngx_http_read_discarded_body(ngx_event_t *ev)
|
2002-08-26 23:18:19 +08:00
|
|
|
{
|
2002-09-02 22:48:24 +08:00
|
|
|
size_t size;
|
|
|
|
ssize_t n;
|
|
|
|
ngx_connection_t *c;
|
|
|
|
ngx_http_request_t *r;
|
|
|
|
|
|
|
|
c = (ngx_connection_t *) ev->data;
|
|
|
|
r = (ngx_http_request_t *) c->data;
|
|
|
|
|
|
|
|
ngx_log_debug(ev->log, "http read discarded body");
|
|
|
|
|
|
|
|
if (ev->timedout)
|
|
|
|
return NGX_ERROR;
|
|
|
|
|
|
|
|
if (r->discarded_buffer == NULL)
|
|
|
|
ngx_test_null(r->discarded_buffer,
|
|
|
|
ngx_palloc(r->pool, r->server->discarded_buffer_size),
|
|
|
|
NGX_ERROR);
|
|
|
|
|
|
|
|
size = r->client_content_length;
|
|
|
|
if (size > r->server->discarded_buffer_size)
|
|
|
|
size = r->server->discarded_buffer_size;
|
|
|
|
|
|
|
|
n = ngx_event_recv(c, r->discarded_buffer, size);
|
2002-09-12 22:42:29 +08:00
|
|
|
if (n == NGX_ERROR)
|
|
|
|
return NGX_ERROR;
|
2002-09-02 22:48:24 +08:00
|
|
|
|
2002-09-12 22:42:29 +08:00
|
|
|
if (n == NGX_AGAIN)
|
|
|
|
return NGX_OK;
|
|
|
|
|
|
|
|
r->client_content_length -= n;
|
|
|
|
/* XXX: what if r->client_content_length == 0 ? */
|
|
|
|
return NGX_OK;
|
2002-09-02 22:48:24 +08:00
|
|
|
}
|
|
|
|
|
2002-12-11 02:05:12 +08:00
|
|
|
|
2002-12-15 14:25:09 +08:00
|
|
|
#if 0
|
2002-09-02 22:48:24 +08:00
|
|
|
static int ngx_http_discarded_read(ngx_event_t *ev)
|
|
|
|
{
|
|
|
|
ssize_t n;
|
|
|
|
ngx_connection_t *c;
|
|
|
|
ngx_http_request_t *r;
|
|
|
|
|
|
|
|
c = (ngx_connection_t *) ev->data;
|
|
|
|
r = (ngx_http_request_t *) c->data;
|
|
|
|
|
|
|
|
ngx_log_debug(ev->log, "http discarded read");
|
|
|
|
|
|
|
|
if (ev->timedout)
|
|
|
|
return NGX_ERROR;
|
|
|
|
|
|
|
|
if (r->discarded_buffer == NULL)
|
|
|
|
ngx_test_null(r->discarded_buffer,
|
|
|
|
ngx_palloc(r->pool, r->server->discarded_buffer_size),
|
|
|
|
NGX_ERROR);
|
|
|
|
|
|
|
|
n = ngx_event_recv(c, r->discarded_buffer,
|
|
|
|
r->server->discarded_buffer_size);
|
|
|
|
|
|
|
|
return n;
|
2002-08-26 23:18:19 +08:00
|
|
|
}
|
2002-12-03 00:09:40 +08:00
|
|
|
#endif
|
|
|
|
|
2002-08-16 23:27:03 +08:00
|
|
|
|
2002-12-15 14:25:09 +08:00
|
|
|
static int ngx_http_keepalive_handler(ngx_event_t *ev)
|
2002-08-26 23:18:19 +08:00
|
|
|
{
|
2002-12-15 14:25:09 +08:00
|
|
|
ssize_t n;
|
|
|
|
ngx_connection_t *c;
|
|
|
|
ngx_http_log_ctx_t *ctx;
|
2002-08-26 23:18:19 +08:00
|
|
|
|
2002-09-02 22:48:24 +08:00
|
|
|
c = (ngx_connection_t *) ev->data;
|
2002-08-26 23:18:19 +08:00
|
|
|
|
2002-12-15 14:25:09 +08:00
|
|
|
ngx_log_debug(ev->log, "http keepalive handler");
|
2002-08-26 23:18:19 +08:00
|
|
|
|
2002-12-15 14:25:09 +08:00
|
|
|
if (ev->timedout)
|
|
|
|
return NGX_DONE;
|
2002-08-26 23:18:19 +08:00
|
|
|
|
2002-12-15 14:25:09 +08:00
|
|
|
n = ngx_event_recv(c, c->buffer->last.mem,
|
|
|
|
c->buffer->end - c->buffer->last.mem);
|
2002-08-26 23:18:19 +08:00
|
|
|
|
2002-12-15 14:25:09 +08:00
|
|
|
if (n == NGX_AGAIN || n == NGX_ERROR)
|
|
|
|
return n;
|
2002-08-26 23:18:19 +08:00
|
|
|
|
2002-12-15 14:25:09 +08:00
|
|
|
ctx = (ngx_http_log_ctx_t *) ev->log->data;
|
|
|
|
ev->log->handler = NULL;
|
2002-09-16 23:01:44 +08:00
|
|
|
|
2002-12-15 14:25:09 +08:00
|
|
|
if (n == 0) {
|
|
|
|
ngx_log_error(NGX_LOG_INFO, ev->log, 0,
|
|
|
|
"client %s closed keepalive connection", ctx->client);
|
|
|
|
return NGX_DONE;
|
2002-09-12 22:42:29 +08:00
|
|
|
}
|
2002-08-26 23:18:19 +08:00
|
|
|
|
2002-12-15 14:25:09 +08:00
|
|
|
c->buffer->last.mem += n;
|
|
|
|
ev->log->handler = ngx_http_log_error;
|
|
|
|
ctx->action = "reading client request line";
|
2002-09-16 23:01:44 +08:00
|
|
|
|
2002-12-15 14:25:09 +08:00
|
|
|
return ngx_http_init_request(ev);
|
2002-09-16 23:01:44 +08:00
|
|
|
}
|
|
|
|
|
2002-12-11 02:05:12 +08:00
|
|
|
|
2002-09-16 23:01:44 +08:00
|
|
|
static int ngx_http_set_lingering_close(ngx_http_request_t *r)
|
|
|
|
{
|
|
|
|
r->lingering_time = ngx_time() + r->server->lingering_time;
|
2002-12-15 14:25:09 +08:00
|
|
|
r->connection->read->event_handler = ngx_http_lingering_close_handler;
|
2002-09-16 23:01:44 +08:00
|
|
|
|
|
|
|
ngx_del_timer(r->connection->read);
|
|
|
|
ngx_add_timer(r->connection->read, r->server->lingering_timeout);
|
|
|
|
|
|
|
|
#if (HAVE_CLEAR_EVENT)
|
|
|
|
if (ngx_add_event(r->connection->read, NGX_READ_EVENT,
|
|
|
|
NGX_CLEAR_EVENT) == NGX_ERROR) {
|
|
|
|
#else
|
|
|
|
if (ngx_add_event(r->connection->read, NGX_READ_EVENT,
|
|
|
|
NGX_ONESHOT_EVENT) == NGX_ERROR) {
|
|
|
|
#endif
|
|
|
|
return ngx_http_close_request(r);
|
|
|
|
}
|
|
|
|
|
2002-12-15 14:25:09 +08:00
|
|
|
if (ngx_shutdown_socket(r->connection->fd, NGX_WRITE_SHUTDOWN) == -1)
|
2002-09-16 23:01:44 +08:00
|
|
|
{
|
|
|
|
ngx_log_error(NGX_LOG_ERR, r->connection->log, ngx_socket_errno,
|
|
|
|
ngx_shutdown_socket_n " failed");
|
|
|
|
return ngx_http_close_request(r);
|
|
|
|
}
|
|
|
|
|
|
|
|
return NGX_OK;
|
2002-08-26 23:18:19 +08:00
|
|
|
}
|
|
|
|
|
|
|
|
|
2002-12-15 14:25:09 +08:00
|
|
|
static int ngx_http_lingering_close_handler(ngx_event_t *ev)
|
2002-08-26 23:18:19 +08:00
|
|
|
{
|
2002-12-15 14:25:09 +08:00
|
|
|
ssize_t n;
|
|
|
|
ngx_msec_t timer;
|
2002-09-13 22:47:42 +08:00
|
|
|
ngx_connection_t *c;
|
|
|
|
ngx_http_request_t *r;
|
|
|
|
|
|
|
|
c = (ngx_connection_t *) ev->data;
|
|
|
|
r = (ngx_http_request_t *) c->data;
|
|
|
|
|
2002-12-15 14:25:09 +08:00
|
|
|
ngx_log_debug(ev->log, "http lingering close handler");
|
2002-09-13 22:47:42 +08:00
|
|
|
|
|
|
|
if (ev->timedout)
|
|
|
|
return NGX_DONE;
|
|
|
|
|
|
|
|
timer = r->lingering_time - ngx_time();
|
|
|
|
if (timer <= 0)
|
|
|
|
return NGX_DONE;
|
|
|
|
|
2002-09-16 23:01:44 +08:00
|
|
|
if (r->discarded_buffer == NULL) {
|
|
|
|
if (r->header_in->end - r->header_in->last.mem
|
|
|
|
>= r->server->discarded_buffer_size) {
|
|
|
|
r->discarded_buffer = r->header_in->last.mem;
|
|
|
|
|
|
|
|
} else {
|
|
|
|
ngx_test_null(r->discarded_buffer,
|
|
|
|
ngx_palloc(c->pool, r->server->discarded_buffer_size),
|
|
|
|
NGX_ERROR);
|
|
|
|
}
|
|
|
|
}
|
2002-09-13 22:47:42 +08:00
|
|
|
|
|
|
|
n = ngx_event_recv(c, r->discarded_buffer,
|
|
|
|
r->server->discarded_buffer_size);
|
|
|
|
|
|
|
|
if (n == NGX_ERROR)
|
|
|
|
return NGX_ERROR;
|
|
|
|
|
|
|
|
if (n == 0)
|
|
|
|
return NGX_DONE;
|
|
|
|
|
2002-09-16 23:01:44 +08:00
|
|
|
timer *= 1000;
|
|
|
|
if (timer > r->server->lingering_timeout)
|
|
|
|
timer = r->server->lingering_timeout;
|
2002-09-13 22:47:42 +08:00
|
|
|
|
|
|
|
ngx_del_timer(ev);
|
2002-09-16 23:01:44 +08:00
|
|
|
ngx_add_timer(ev, timer);
|
2002-09-13 22:47:42 +08:00
|
|
|
|
|
|
|
return NGX_OK;
|
|
|
|
}
|
|
|
|
|
2002-08-20 22:48:28 +08:00
|
|
|
|
2002-10-05 01:58:04 +08:00
|
|
|
static int ngx_http_close_connection(ngx_event_t *ev)
|
|
|
|
{
|
|
|
|
int i, len;
|
|
|
|
char **requests, *requests_line, *prev, *new;
|
|
|
|
ngx_connection_t *c = (ngx_connection_t *) ev->data;
|
|
|
|
|
|
|
|
if (c->requests->nelts > 1) {
|
|
|
|
len = c->requests_len + c->requests->nelts * 2 - 1;
|
|
|
|
|
|
|
|
ngx_test_null(requests_line, ngx_palloc(c->pool, len),
|
|
|
|
ngx_event_close_connection(ev));
|
|
|
|
|
|
|
|
requests = (char **) c->requests->elts;
|
|
|
|
prev = requests_line;
|
|
|
|
new = ngx_cpystrn(prev, requests[0], len);
|
|
|
|
len -= new - prev;
|
|
|
|
prev = new;
|
|
|
|
|
|
|
|
for (i = 1; i < c->requests->nelts; i++) {
|
|
|
|
new = ngx_cpystrn(prev, ", ", len);
|
|
|
|
new = ngx_cpystrn(new, requests[i], len);
|
|
|
|
len -= new - prev;
|
|
|
|
prev = new;
|
|
|
|
}
|
|
|
|
|
|
|
|
} else {
|
|
|
|
requests_line = * (char **) c->requests->elts;
|
|
|
|
}
|
|
|
|
|
|
|
|
ngx_log_error(NGX_LOG_INFO, c->log, 0,
|
|
|
|
"REQUESTS: %d, '%s'", c->requests->nelts, requests_line);
|
|
|
|
|
|
|
|
return ngx_event_close_connection(ev);
|
|
|
|
}
|
|
|
|
|
|
|
|
|
2002-08-26 23:18:19 +08:00
|
|
|
static size_t ngx_http_log_error(void *data, char *buf, size_t len)
|
|
|
|
{
|
|
|
|
ngx_http_log_ctx_t *ctx = (ngx_http_log_ctx_t *) data;
|
2002-09-02 22:48:24 +08:00
|
|
|
|
2002-08-26 23:18:19 +08:00
|
|
|
if (ctx->url)
|
|
|
|
return ngx_snprintf(buf, len, " while %s, client: %s, URL: %s",
|
|
|
|
ctx->action, ctx->client, ctx->url);
|
|
|
|
else
|
|
|
|
return ngx_snprintf(buf, len, " while %s, client: %s",
|
|
|
|
ctx->action, ctx->client);
|
2002-08-07 00:39:45 +08:00
|
|
|
}
|