| /* |
| TODO: Win32 inet_ntoa |
| ngx_inet_ntop |
| */ |
| |
| #include <ngx_config.h> |
| #include <ngx_core.h> |
| #include <ngx_string.h> |
| #include <ngx_files.h> |
| #include <ngx_log.h> |
| #include <ngx_alloc.h> |
| #include <ngx_hunk.h> |
| #include <ngx_connection.h> |
| #include <ngx_http.h> |
| #include <ngx_http_config.h> |
| #include <ngx_http_core.h> |
| |
| /* STUB */ |
| #include <ngx_http_output_filter.h> |
| int ngx_http_static_handler(ngx_http_request_t *r); |
| int ngx_http_index_handler(ngx_http_request_t *r); |
| /* */ |
| |
| int ngx_http_init_connection(ngx_connection_t *c); |
| |
| static int ngx_http_init_request(ngx_event_t *ev); |
| static int ngx_http_process_request(ngx_event_t *ev); |
| |
| static int ngx_http_process_request_line(ngx_http_request_t *r); |
| static int ngx_http_process_request_header(ngx_http_request_t *r); |
| static int ngx_http_process_request_header_line(ngx_http_request_t *r); |
| |
| static int ngx_http_block_read(ngx_event_t *ev); |
| static int ngx_http_read_discarded_body(ngx_event_t *ev); |
| |
| static int ngx_http_event_handler(ngx_http_request_t *r); |
| static int ngx_http_handler(ngx_http_request_t *r); |
| static int ngx_http_set_default_handler(ngx_http_request_t *r); |
| |
| static int ngx_http_writer(ngx_event_t *ev); |
| static int ngx_http_set_lingering_close(ngx_http_request_t *r); |
| static int ngx_http_keepalive_handler(ngx_event_t *ev); |
| static int ngx_http_lingering_close(ngx_event_t *ev); |
| |
| static int ngx_http_special_response(ngx_http_request_t *r, int error); |
| static int ngx_http_redirect(ngx_http_request_t *r, int redirect); |
| static int ngx_http_error(ngx_http_request_t *r, int error); |
| |
| static int ngx_http_close_request(ngx_http_request_t *r); |
| static int ngx_http_close_connection(ngx_event_t *ev); |
| static size_t ngx_http_log_error(void *data, char *buf, size_t len); |
| |
| |
| |
| static char *header_errors[] = { |
| "client %s sent invalid method", |
| "client %s sent invalid request", |
| "client %s sent too long URI", |
| "client %s sent HEAD method in HTTP/0.9 request" |
| }; |
| |
| |
| |
| int ngx_http_init_connection(ngx_connection_t *c) |
| { |
| ngx_event_t *ev; |
| struct sockaddr *addr; |
| ngx_http_server_t *srv; |
| ngx_http_log_ctx_t *ctx; |
| |
| ev = c->read; |
| ev->event_handler = ngx_http_init_request; |
| |
| srv = (ngx_http_server_t *) c->server; |
| |
| ngx_test_null(c->pool, |
| ngx_create_pool(srv->connection_pool_size, ev->log), |
| NGX_ERROR); |
| |
| ngx_test_null(c->requests, ngx_create_array(c->pool, 10, sizeof(char *)), |
| NGX_ERROR); |
| |
| ev->close_handler = ngx_http_close_connection; |
| c->write->close_handler = ngx_http_close_connection; |
| |
| ngx_test_null(addr, ngx_palloc(c->pool, c->socklen), NGX_ERROR); |
| ngx_memcpy(addr, c->sockaddr, c->socklen); |
| c->sockaddr = addr; |
| |
| ngx_test_null(c->addr_text, ngx_palloc(c->pool, c->addr_textlen), |
| NGX_ERROR); |
| #if (WIN32) |
| c->addr_text = inet_ntoa((struct in_addr *) |
| ((char *)c->sockaddr + c->addr)); |
| #else |
| inet_ntop(c->family, (char *)c->sockaddr + c->addr, |
| c->addr_text, c->addr_textlen); |
| #endif |
| |
| ngx_test_null(ctx, ngx_pcalloc(c->pool, sizeof(ngx_http_log_ctx_t)), |
| NGX_ERROR); |
| ctx->client = c->addr_text; |
| ctx->action = "reading client request line"; |
| c->log->data = ctx; |
| c->log->handler = ngx_http_log_error; |
| |
| #if (HAVE_DEFERRED_ACCEPT) |
| if (ev->ready) { |
| return ngx_http_init_request(ev); |
| } else { |
| #endif |
| ngx_add_timer(ev, c->post_accept_timeout); |
| #if (USE_KQUEUE) |
| return ngx_add_event(ev, NGX_READ_EVENT, NGX_CLEAR_EVENT); |
| #else |
| #if (HAVE_AIO_EVENT) |
| if (ngx_event_type == NGX_AIO_EVENT) |
| return ngx_http_init_request(ev); |
| else |
| #endif |
| #if (HAVE_CLEAR_EVENT) |
| if (ngx_event_type == NGX_KQUEUE_EVENT) |
| return ngx_add_event(ev, NGX_READ_EVENT, NGX_CLEAR_EVENT); |
| else |
| #endif |
| return ngx_add_event(ev, NGX_READ_EVENT, NGX_LEVEL_EVENT); |
| #endif /* USE_KQUEUE */ |
| #if (HAVE_DEFERRED_ACCEPT) |
| } |
| #endif |
| } |
| |
| |
| static int ngx_http_init_request(ngx_event_t *ev) |
| { |
| ngx_connection_t *c; |
| ngx_http_server_t *srv; |
| ngx_http_request_t *r; |
| |
| c = (ngx_connection_t *) ev->data; |
| srv = (ngx_http_server_t *) c->server; |
| |
| ngx_test_null(r, ngx_pcalloc(c->pool, sizeof(ngx_http_request_t)), |
| NGX_ERROR); |
| |
| c->data = r; |
| r->connection = c; |
| r->server = srv; |
| |
| r->srv_conf = ngx_srv_conf; |
| r->loc_conf = ngx_loc_conf; |
| |
| if (c->buffer == NULL) { |
| ngx_test_null(c->buffer, |
| ngx_create_temp_hunk(c->pool, srv->header_buffer_size, |
| 0, 0), |
| NGX_ERROR); |
| } else { |
| r->header_read = 1; |
| } |
| |
| r->header_in = c->buffer; |
| |
| ngx_test_null(r->pool, ngx_create_pool(srv->request_pool_size, ev->log), |
| ngx_http_close_request(r)); |
| |
| ngx_test_null(r->ctx, ngx_pcalloc(r->pool, sizeof(void *) * ngx_max_module), |
| ngx_http_close_request(r)); |
| |
| ev->event_handler = ngx_http_process_request; |
| r->state_handler = ngx_http_process_request_line; |
| r->process_header = 1; |
| r->header_timeout = 1; |
| |
| return ngx_http_process_request(ev); |
| } |
| |
| |
| static int ngx_http_process_request(ngx_event_t *ev) |
| { |
| int n, rc; |
| ngx_connection_t *c ; |
| ngx_http_request_t *r; |
| ngx_http_log_ctx_t *ctx; |
| |
| c = (ngx_connection_t *) ev->data; |
| r = (ngx_http_request_t *) c->data; |
| |
| ngx_log_debug(ev->log, "http process request"); |
| |
| if (r->header_read) { |
| r->header_read = 0; |
| ngx_log_debug(ev->log, "http preread %d" _ |
| r->header_in->last.mem - r->header_in->pos.mem); |
| |
| } else { |
| n = ngx_event_recv(c, r->header_in->last.mem, |
| r->header_in->end - r->header_in->last.mem); |
| |
| if (n == NGX_AGAIN) { |
| if (r->header_timeout) { |
| r->header_timeout = 0; |
| ngx_del_timer(ev); |
| ngx_add_timer(ev, r->server->header_timeout); |
| } |
| return NGX_AGAIN; |
| } |
| |
| if (n == NGX_ERROR) |
| return ngx_http_close_request(r); |
| |
| ngx_log_debug(ev->log, "http read %d" _ n); |
| |
| if (n == 0) { |
| if (c->unexpected_eof) |
| ngx_log_error(NGX_LOG_INFO, c->log, 0, |
| "client prematurely closed connection"); |
| return ngx_http_close_request(r); |
| } |
| |
| r->header_in->last.mem += n; |
| } |
| |
| /* state_handlers are called in following order: |
| ngx_http_process_request_line(r) |
| ngx_http_process_request_header(r) */ |
| |
| do { |
| rc = (r->state_handler)(r); |
| |
| if (rc == NGX_ERROR) |
| return rc; |
| |
| /* rc == NGX_OK || rc == NGX_AGAIN */ |
| |
| } while (r->process_header |
| && r->header_in->pos.mem < r->header_in->last.mem); |
| |
| if (r->header_timeout) { |
| r->header_timeout = 0; |
| ngx_del_timer(ev); |
| ngx_add_timer(ev, r->server->header_timeout); |
| } |
| |
| return rc; |
| } |
| |
| |
| static int ngx_http_process_request_line(ngx_http_request_t *r) |
| { |
| int rc, len; |
| char **request; |
| ngx_connection_t *c; |
| ngx_http_log_ctx_t *ctx; |
| |
| rc = ngx_read_http_request_line(r); |
| |
| c = r->connection; |
| |
| if (rc == NGX_OK) { |
| ngx_test_null(r->uri, |
| ngx_palloc(r->pool, r->uri_end - r->uri_start + 1), |
| ngx_http_close_request(r)); |
| ngx_cpystrn(r->uri, r->uri_start, r->uri_end - r->uri_start + 1); |
| |
| 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); |
| |
| if (r->uri_ext) { |
| ngx_test_null(r->exten, |
| ngx_palloc(r->pool, r->uri_end - r->uri_ext + 1), |
| ngx_http_close_request(r)); |
| ngx_cpystrn(r->exten, r->uri_ext, r->uri_end - r->uri_ext + 1); |
| } |
| |
| ngx_log_debug(r->connection->log, "HTTP: %d, %d, %s %s" _ |
| r->method _ r->http_version _ r->uri _ r->exten); |
| |
| if (r->http_version == 9) |
| return ngx_http_event_handler(r); |
| |
| /* TODO: check too long URI - no space for header, compact buffer */ |
| |
| r->state_handler = ngx_http_process_request_header; |
| ctx = r->connection->log->data; |
| ctx->action = "reading client request headers"; |
| |
| return NGX_OK; |
| } |
| |
| if (r->header_in->last.mem >= r->header_in->end) { |
| rc == NGX_HTTP_PARSE_TOO_LONG_URI; |
| |
| } else if (rc == NGX_AGAIN) { |
| return NGX_AGAIN; |
| } |
| |
| ctx = r->connection->log->data; |
| r->connection->log->handler = NULL; |
| ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, |
| header_errors[rc - NGX_HTTP_PARSE_INVALID_METHOD], |
| ctx->client); |
| r->connection->log->handler = ngx_http_log_error; |
| |
| return ngx_http_error(r, (rc == NGX_HTTP_PARSE_TOO_LONG_URI) ? |
| NGX_HTTP_REQUEST_URI_TOO_LARGE: |
| NGX_HTTP_BAD_REQUEST); |
| } |
| |
| |
| static int ngx_http_process_request_header(ngx_http_request_t *r) |
| { |
| int rc; |
| ngx_http_log_ctx_t *ctx; |
| |
| for ( ;; ) { |
| rc = ngx_read_http_header_line(r); |
| |
| /* TODO: check too long header, compact buffer */ |
| |
| if (rc == NGX_OK) { |
| if (ngx_http_process_request_header_line(r) == NGX_ERROR) |
| return ngx_http_error(r, NGX_HTTP_BAD_REQUEST); |
| |
| } else if (rc == NGX_HTTP_PARSE_HEADER_DONE) { |
| ngx_log_debug(r->connection->log, "HTTP header done"); |
| return ngx_http_event_handler(r); |
| |
| } else if (rc == NGX_AGAIN) { |
| return NGX_AGAIN; |
| |
| } else if (rc == NGX_HTTP_PARSE_INVALID_HEADER) { |
| ctx = r->connection->log->data; |
| r->connection->log->handler = NULL; |
| ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, |
| "client %s sent invalid header", ctx->client); |
| r->connection->log->handler = ngx_http_log_error; |
| |
| return ngx_http_error(r, NGX_HTTP_BAD_REQUEST); |
| } |
| } |
| } |
| |
| |
| static int ngx_http_process_request_header_line(ngx_http_request_t *r) |
| { |
| /* STUB */ |
| *r->header_name_end = '\0'; |
| *r->header_end = '\0'; |
| ngx_log_debug(r->connection->log, "HTTP header: '%s: %s'" _ |
| r->header_name_start _ r->header_start); |
| |
| return NGX_OK; |
| } |
| |
| |
| /* ******************** */ |
| |
| void ngx_http_discard_body(ngx_http_request_t *r) |
| { |
| ngx_log_debug(r->connection->log, "set discard body"); |
| |
| ngx_del_timer(r->connection->read); |
| |
| if (r->client_content_length) |
| r->connection->read->event_handler = ngx_http_read_discarded_body; |
| } |
| |
| static int ngx_http_read_discarded_body(ngx_event_t *ev) |
| { |
| 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); |
| if (n == NGX_ERROR) |
| return NGX_ERROR; |
| |
| if (n == NGX_AGAIN) |
| return NGX_OK; |
| |
| r->client_content_length -= n; |
| /* XXX: what if r->client_content_length == 0 ? */ |
| return NGX_OK; |
| } |
| |
| 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; |
| } |
| |
| /* ******************** */ |
| |
| |
| static int ngx_http_event_handler(ngx_http_request_t *r) |
| { |
| int rc; |
| ngx_msec_t timeout; |
| |
| rc = ngx_http_handler(r); |
| |
| /* transfer 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; |
| } |
| |
| static int ngx_http_handler(ngx_http_request_t *r) |
| { |
| int rc; |
| |
| ngx_del_timer(r->connection->read); |
| r->header_timeout = 0; |
| |
| r->process_header = 0; |
| r->state_handler = NULL; |
| r->connection->unexpected_eof = 0; |
| r->lingering_close = 1; |
| |
| r->connection->read->event_handler = ngx_http_block_read; |
| |
| /* STUB: should find handler */ |
| #if 1 |
| r->filter = NGX_HTTP_FILTER_NEED_IN_MEMORY; |
| #endif |
| rc = ngx_http_set_default_handler(r); |
| |
| if (rc >= NGX_HTTP_SPECIAL_RESPONSE) |
| return ngx_http_special_response(r, rc); |
| |
| rc = r->handler(r); |
| |
| return rc; |
| } |
| |
| int ngx_http_internal_redirect(ngx_http_request_t *r, char *uri) |
| { |
| ngx_log_debug(r->connection->log, "internal redirect: '%s'" _ uri); |
| |
| r->uri = uri; |
| r->uri_start = uri; |
| r->uri_end = uri + strlen(uri); |
| return ngx_http_handler(r); |
| } |
| |
| static int ngx_http_set_default_handler(ngx_http_request_t *r) |
| { |
| int err, rc; |
| char *name, *loc, *file; |
| |
| ngx_test_null(r->headers_out, |
| ngx_pcalloc(r->pool, sizeof(ngx_http_headers_out_t)), |
| NGX_HTTP_INTERNAL_SERVER_ERROR); |
| |
| if (*(r->uri_end - 1) == '/') { |
| r->handler = ngx_http_index_handler; |
| return NGX_OK; |
| } |
| |
| /* 20 bytes is spare space for some index name, i.e. index.html */ |
| r->filename_len = r->uri_end - r->uri_start + r->server->doc_root_len + 20; |
| |
| ngx_test_null(r->filename, |
| ngx_palloc(r->pool, r->filename_len), |
| NGX_HTTP_INTERNAL_SERVER_ERROR); |
| |
| r->location = ngx_cpystrn(r->filename, r->server->doc_root, |
| r->server->doc_root_len); |
| file = ngx_cpystrn(r->location, r->uri_start, |
| r->uri_end - r->uri_start + 1); |
| |
| ngx_log_debug(r->connection->log, "HTTP filename: '%s'" _ r->filename); |
| |
| if (ngx_file_type(r->filename, &r->fileinfo) == -1) { |
| err = ngx_errno; |
| ngx_log_error(NGX_LOG_ERR, r->connection->log, err, |
| ngx_file_type_n " %s failed", r->filename); |
| |
| if (err == NGX_ENOENT) |
| return NGX_HTTP_NOT_FOUND; |
| else |
| return NGX_HTTP_INTERNAL_SERVER_ERROR; |
| } |
| |
| if (ngx_is_dir(r->fileinfo)) { |
| ngx_log_debug(r->connection->log, "HTTP DIR: '%s'" _ r->filename); |
| *file++ = '/'; |
| *file = '\0'; |
| r->headers_out->location = r->location; |
| return NGX_HTTP_MOVED_PERMANENTLY; |
| } |
| |
| r->handler = ngx_http_static_handler; |
| |
| return NGX_OK; |
| } |
| |
| |
| static int ngx_http_block_read(ngx_event_t *ev) |
| { |
| ngx_log_debug(ev->log, "http read blocked"); |
| |
| ev->blocked = 1; |
| return ngx_del_event(ev, NGX_READ_EVENT); |
| } |
| |
| |
| 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_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_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; |
| } |
| |
| static int ngx_http_set_lingering_close(ngx_http_request_t *r) |
| { |
| r->lingering_time = ngx_time() + r->server->lingering_time; |
| r->connection->read->event_handler = ngx_http_lingering_close; |
| |
| 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); |
| } |
| |
| if (ngx_shutdown_socket(r->connection->fd, NGX_WRITE_SHUTDOWN) == NGX_ERROR) |
| { |
| 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; |
| } |
| |
| |
| static int ngx_http_keepalive_handler(ngx_event_t *ev) |
| { |
| ssize_t n; |
| ngx_connection_t *c; |
| ngx_http_log_ctx_t *ctx; |
| |
| c = (ngx_connection_t *) ev->data; |
| |
| ngx_log_debug(ev->log, "http keepalive"); |
| |
| if (ev->timedout) |
| return NGX_DONE; |
| |
| n = ngx_event_recv(c, c->buffer->last.mem, |
| c->buffer->end - c->buffer->last.mem); |
| |
| if (n == NGX_AGAIN || n == NGX_ERROR) |
| return n; |
| |
| ctx = (ngx_http_log_ctx_t *) ev->log->data; |
| ev->log->handler = NULL; |
| |
| if (n == 0) { |
| ngx_log_error(NGX_LOG_INFO, ev->log, 0, |
| "client %s closed keepalive connection", ctx->client); |
| return NGX_DONE; |
| } |
| |
| c->buffer->last.mem += n; |
| ev->log->handler = ngx_http_log_error; |
| ctx->action = "reading client request line"; |
| |
| return ngx_http_init_request(ev); |
| } |
| |
| |
| static int ngx_http_lingering_close(ngx_event_t *ev) |
| { |
| ssize_t n; |
| ngx_msec_t timer; |
| 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 lingering close"); |
| |
| if (ev->timedout) |
| return NGX_DONE; |
| |
| timer = r->lingering_time - ngx_time(); |
| if (timer <= 0) |
| return NGX_DONE; |
| |
| 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); |
| } |
| } |
| |
| 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; |
| |
| timer *= 1000; |
| if (timer > r->server->lingering_timeout) |
| timer = r->server->lingering_timeout; |
| |
| ngx_del_timer(ev); |
| ngx_add_timer(ev, timer); |
| |
| return NGX_OK; |
| } |
| |
| |
| static int ngx_http_special_response(ngx_http_request_t *r, int error) |
| { |
| return ngx_http_error(r, error); |
| } |
| |
| |
| static int ngx_http_redirect(ngx_http_request_t *r, int redirect) |
| { |
| /* STUB */ |
| |
| /* log request */ |
| |
| return ngx_http_close_request(r); |
| } |
| |
| |
| static int ngx_http_error(ngx_http_request_t *r, int error) |
| { |
| /* STUB */ |
| ngx_log_debug(r->connection->log, "http error: %d" _ error); |
| |
| /* log request */ |
| |
| return ngx_http_close_request(r); |
| } |
| |
| #if 0 |
| |
| static int ngx_process_http_request(ngx_http_request_t *r) |
| { |
| int fd; |
| struct stat sb; |
| ngx_http_header_out_t *header_out; |
| ngx_chunk_t *header, *ch; |
| |
| int index = (*(r->uri_end - 1) == '/') ? sizeof(NGX_INDEX) : 1; |
| char *name = ngx_palloc(r->pool, |
| r->uri_end - r->uri_start + strlen(ngx_root) + index); |
| strcpy(name, ngx_root); |
| strcat(name, r->uri_start); |
| if (*(r->uri_end - 1) == '/') |
| strcat(name, NGX_INDEX); |
| |
| ngx_log_debug(r->connection->log, "HTTP URI: '%s'", name); |
| |
| if ((fd = open(name, O_RDONLY)) == -1) { |
| ngx_log_error(NGX_LOG_ERR, r->connection->log, errno, |
| "open %s failed", name); |
| return -1; |
| } |
| |
| if (fstat(fd, &sb) == -1) { |
| ngx_log_error(NGX_LOG_ERR, r->connection->log, errno, |
| "fstat %s failed", name); |
| return -1; |
| } |
| |
| header_out = ngx_palloc(r->pool, sizeof(ngx_http_header_out_t)); |
| |
| header_out->status = NGX_HTTP_OK; |
| header_out->content_length = sb.st_size; |
| header_out->last_modified = sb.st_mtime; |
| header_out->content_type = "text/html"; |
| header_out->charset = "koi8-r"; |
| header_out->date = time(NULL); |
| header_out->connection = NGX_HTTP_CONN_CLOSE; |
| |
| /* |
| header_out->connection = NGX_HTTP_CONN_KEEP_ALIVE; |
| r->connection->read->event_handler = ngx_http_init_request; |
| */ |
| |
| header = ngx_http_header(r, header_out); |
| ch = ngx_palloc(r->pool, sizeof(ngx_chunk_t)); |
| ch->ident = fd; |
| ch->offset = 0; |
| ch->size = sb.st_size; |
| ch->next = NULL; |
| header->next = ch; |
| |
| ngx_event_write(r->connection, header); |
| |
| return 0; |
| } |
| |
| #endif |
| |
| static int ngx_http_close_request(ngx_http_request_t *r) |
| { |
| /* |
| if (r->logging) |
| ngx_http_log_request(r); |
| */ |
| |
| ngx_destroy_pool(r->pool); |
| |
| ngx_log_debug(r->connection->log, "http close"); |
| |
| ngx_del_timer(r->connection->read); |
| ngx_del_timer(r->connection->write); |
| |
| return NGX_DONE; |
| } |
| |
| |
| 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); |
| } |
| |
| |
| 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; |
| |
| 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); |
| } |
