Mercurial > hg > nginx
changeset 142:cb77c084acdb
nginx-0.0.1-2003-10-09-11:00:45 import
| author | Igor Sysoev <igor@sysoev.ru> |
|---|---|
| date | Thu, 09 Oct 2003 07:00:45 +0000 |
| parents | 656d468f4ead |
| children | 5526213be452 |
| files | src/core/ngx_hunk.h src/http/modules/ngx_http_not_modified_filter.c src/http/modules/ngx_http_static_handler.c src/http/ngx_http.h src/http/ngx_http_event.c src/http/ngx_http_output_filter.c src/http/ngx_http_request.c src/http/ngx_http_special_response.c src/http/ngx_http_write_filter.c src/os/unix/ngx_freebsd_init.c src/os/unix/ngx_freebsd_sendfile_chain.c |
| diffstat | 11 files changed, 1676 insertions(+), 1557 deletions(-) [+] |
line wrap: on
line diff
--- a/src/core/ngx_hunk.h Wed Oct 08 15:32:54 2003 +0000 +++ b/src/core/ngx_hunk.h Thu Oct 09 07:00:45 2003 +0000 @@ -75,6 +75,14 @@ #define ngx_hunk_in_memory_only(h) \ ((h->type & (NGX_HUNK_IN_MEMORY|NGX_HUNK_FILE)) == NGX_HUNK_IN_MEMORY) +/* + ((h->type & (NGX_HUNK_TEMP|NGX_HUNK_MEMORY|NGX_HUNK_MMAP|NGX_HUNK_FILE)) \ + == (h->type & (NGX_HUNK_TEMP|NGX_HUNK_MEMORY|NGX_HUNK_MMAP))) + +*/ + +#define ngx_hunk_special(h) \ + (h->type == (h->type & (NGX_HUNK_FLUSH|NGX_HUNK_LAST))) ngx_hunk_t *ngx_create_temp_hunk(ngx_pool_t *pool, int size,
--- a/src/http/modules/ngx_http_not_modified_filter.c Wed Oct 08 15:32:54 2003 +0000 +++ b/src/http/modules/ngx_http_not_modified_filter.c Thu Oct 09 07:00:45 2003 +0000 @@ -39,7 +39,7 @@ if (r->headers_out.status != NGX_HTTP_OK || r->headers_in.if_modified_since == NULL - || r->headers_out.last_modified_time == NULL) + || r->headers_out.last_modified_time == -1) { return next_header_filter(r); } @@ -50,7 +50,7 @@ ngx_log_debug(r->connection->log, "%d %d" _ ims _ r->headers_out.last_modified_time); - /* I think that the date equality is correcter */ + /* I think that the equality of the dates is correcter */ if (ims != NGX_ERROR && ims == r->headers_out.last_modified_time) { r->headers_out.status = NGX_HTTP_NOT_MODIFIED;
--- a/src/http/modules/ngx_http_static_handler.c Wed Oct 08 15:32:54 2003 +0000 +++ b/src/http/modules/ngx_http_static_handler.c Thu Oct 09 07:00:45 2003 +0000 @@ -118,6 +118,7 @@ } /* we need to allocate all before the header would be sent */ + ngx_test_null(h, ngx_pcalloc(r->pool, sizeof(ngx_hunk_t)), NGX_HTTP_INTERNAL_SERVER_ERROR); @@ -132,18 +133,28 @@ } if (r->header_only) { + ngx_http_finalize_request(r, rc); + +#if 0 if (rc == NGX_AGAIN) { ngx_http_set_write_handler(r); } else { ngx_http_finalize_request(r, 0); } +#endif return NGX_OK; } - h->type = NGX_HUNK_FILE|NGX_HUNK_LAST; +#if 0 + h->type = r->main ? NGX_HUNK_FILE : NGX_HUNK_FILE|NGX_HUNK_LAST; +#else + h->type = NGX_HUNK_FILE; +#endif + + h->file_pos = 0; h->file_last = ngx_file_size(r->file.info); @@ -152,6 +163,9 @@ rc = ngx_http_output_filter(r, h); + ngx_http_finalize_request(r, rc); + +#if 0 if (r->main == NULL) { if (rc == NGX_AGAIN) { ngx_http_set_write_handler(r); @@ -160,6 +174,7 @@ ngx_http_finalize_request(r, 0); } } +#endif return NGX_OK; }
--- a/src/http/ngx_http.h Wed Oct 08 15:32:54 2003 +0000 +++ b/src/http/ngx_http.h Thu Oct 09 07:00:45 2003 +0000 @@ -54,6 +54,7 @@ void ngx_http_set_write_handler(ngx_http_request_t *r); +int ngx_http_send_last(ngx_http_request_t *r); void ngx_http_close_request(ngx_http_request_t *r, int error); void ngx_http_close_connection(ngx_connection_t *c);
--- a/src/http/ngx_http_event.c Wed Oct 08 15:32:54 2003 +0000 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000 @@ -1,1502 +0,0 @@ - -#include <ngx_config.h> -#include <ngx_core.h> -#include <ngx_event.h> -#include <ngx_http.h> - - -static void ngx_http_init_request(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 void ngx_http_writer(ngx_event_t *ev); - -static void ngx_http_block_read(ngx_event_t *ev); -static void ngx_http_read_discarded_body_event(ngx_event_t *rev); -static int ngx_http_read_discarded_body(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 void ngx_http_empty_handler(ngx_event_t *wev); - -static void ngx_http_header_parse_error(ngx_http_request_t *r, int parse_err); -static size_t ngx_http_log_error(void *data, char *buf, size_t len); - - -/* NGX_HTTP_PARSE_ ... errors */ - -static char *header_errors[] = { - "client %s sent invalid method", - "client %s sent invalid request", - "client %s sent too long URI", - "client %s sent invalid method in HTTP/0.9 request", - - "client %s sent invalid header, URL: %s", - "client %s sent too long header line, URL: %s", - "client %s sent HTTP/1.1 request without \"Host\" header, URL: %s", - "client %s sent invalid \"Content-Length\" header, URL: %s" -}; - - - -static ngx_http_header_t headers_in[] = { - { ngx_string("Host"), offsetof(ngx_http_headers_in_t, host) }, - { ngx_string("Connection"), offsetof(ngx_http_headers_in_t, connection) }, - { ngx_string("If-Modified-Since"), - offsetof(ngx_http_headers_in_t, if_modified_since) }, - { ngx_string("Content-Length"), - offsetof(ngx_http_headers_in_t, content_length) }, - { ngx_string("Accept-Encoding"), - offsetof(ngx_http_headers_in_t, accept_encoding) }, - - { ngx_string("Range"), offsetof(ngx_http_headers_in_t, range) }, -#if 0 - { ngx_string("If-Range"), offsetof(ngx_http_headers_in_t, if_range) }, -#endif - - { ngx_string("User-Agent"), offsetof(ngx_http_headers_in_t, user_agent) }, - - { ngx_null_string, 0 } -}; - - -void ngx_http_init_connection(ngx_connection_t *c) -{ - int event; - ngx_event_t *rev; - ngx_http_log_ctx_t *lctx; - - c->addr_text.data = ngx_palloc(c->pool, c->listening->addr_text_max_len); - if (c->addr_text.data == NULL) { - ngx_http_close_connection(c); - return; - } - - c->addr_text.len = ngx_sock_ntop(c->listening->family, c->sockaddr, - c->addr_text.data, - c->listening->addr_text_max_len); - if (c->addr_text.len == 0) { - ngx_http_close_connection(c); - return; - } - - lctx = ngx_pcalloc(c->pool, sizeof(ngx_http_log_ctx_t)); - if (lctx == NULL) { - ngx_http_close_connection(c); - return; - } - - lctx->client = c->addr_text.data; - lctx->action = "reading client request line"; - c->log->data = lctx; - c->log->handler = ngx_http_log_error; - - rev = c->read; - rev->event_handler = ngx_http_init_request; - - if (rev->ready) { - /* deferred accept */ - ngx_http_init_request(rev); - return; - } - - ngx_add_timer(rev, c->listening->post_accept_timeout); - rev->timer_set = 1; - - if (ngx_event_flags & (NGX_HAVE_AIO_EVENT|NGX_HAVE_EDGE_EVENT)) { - /* aio, iocp, epoll */ - ngx_http_init_request(rev); - return; - } - - if (ngx_event_flags & NGX_HAVE_CLEAR_EVENT) { - /* kqueue */ - event = NGX_CLEAR_EVENT; - - } else { - /* select, poll, /dev/poll */ - event = NGX_LEVEL_EVENT; - } - - if (ngx_add_event(rev, NGX_READ_EVENT, event) == NGX_ERROR) { - ngx_http_close_connection(c); - } -} - - -static void ngx_http_init_request(ngx_event_t *rev) -{ - int i; - socklen_t len; - struct sockaddr_in addr_in; - ngx_connection_t *c; - ngx_http_request_t *r; - ngx_http_in_port_t *in_port; - ngx_http_in_addr_t *in_addr; - ngx_http_server_name_t *server_name; - ngx_http_core_srv_conf_t *cscf; - ngx_http_core_loc_conf_t *clcf; - - c = rev->data; - - r = ngx_pcalloc(c->pool, sizeof(ngx_http_request_t)); - if (r == NULL) { - ngx_http_close_connection(c); - return; - } - - /* find the server configuration for the address:port */ - - /* AF_INET only */ - - in_port = c->servers; - in_addr = in_port->addrs.elts; - -ngx_log_debug(rev->log, "IN: %08x" _ in_port); - - r->port = in_port->port; - r->port_name = &in_port->port_name; - - i = 0; - - if (in_port->addrs.nelts > 1) { - - /* - * there're the several addresses on this port and one of them - * is "*:port" so getsockname() is needed to determine - * the server address. - * AcceptEx() already gave this address. - */ - -#if (WIN32) - if (c->local_sockaddr) { - r->in_addr = - ((struct sockaddr_in *) c->local_sockaddr)->sin_addr.s_addr; - - } else { -#endif - len = sizeof(struct sockaddr_in); - if (getsockname(c->fd, (struct sockaddr *) &addr_in, &len) == -1) { - ngx_log_error(NGX_LOG_CRIT, rev->log, ngx_socket_errno, - "getsockname() failed"); - ngx_http_close_connection(c); - return; - } -#if (WIN32) - } -#endif - - r->in_addr = addr_in.sin_addr.s_addr; - - /* the last in_port->addrs address is "*" */ - - for ( /* void */ ; i < in_port->addrs.nelts - 1; i++) { - if (in_addr[i].addr == r->in_addr) { - break; - } - } - - } else { - r->in_addr = in_addr[0].addr; - } - - r->virtual_names = &in_addr[i].names; - - /* the default server configuration for the address:port */ - cscf = in_addr[i].core_srv_conf; - - r->main_conf = cscf->ctx->main_conf; - r->srv_conf = cscf->ctx->srv_conf; - r->loc_conf = cscf->ctx->loc_conf; - - server_name = cscf->server_names.elts; - r->server_name = &server_name->name; - - clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module); - c->log->file = clcf->err_log->file; - c->log->log_level = clcf->err_log->log_level; - - if (c->buffer == NULL) { - c->buffer = ngx_create_temp_hunk(c->pool, - cscf->client_header_buffer_size, - 0, 0); - if (c->buffer == NULL) { - ngx_http_close_connection(c); - return; - } - } - - r->pool = ngx_create_pool(cscf->request_pool_size, c->log); - if (r->pool == NULL) { - ngx_http_close_connection(c); - return; - } - - r->headers_out.headers = ngx_create_table(r->pool, 10); - if (r->headers_out.headers == NULL) { - ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR); - ngx_http_close_connection(c); - return; - } - - r->ctx = ngx_pcalloc(r->pool, sizeof(void *) * ngx_http_max_module); - if (r->ctx == NULL) { - ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR); - ngx_http_close_connection(c); - return; - } - - c->sent = 0; - c->data = r; - r->connection = c; - r->pipeline = c->pipeline; - r->header_in = c->buffer; - - r->file.fd = NGX_INVALID_FILE; - - r->headers_in.content_length_n = -1; - r->headers_out.content_length = -1; - r->headers_out.last_modified_time = -1; - - rev->event_handler = ngx_http_process_request_line; - ngx_http_process_request_line(rev); -} - - -static void ngx_http_process_request_line(ngx_event_t *rev) -{ - int rc, offset; - ssize_t n; - ngx_connection_t *c; - ngx_http_request_t *r; - ngx_http_log_ctx_t *lctx; - ngx_http_core_srv_conf_t *cscf; - - c = rev->data; - r = c->data; - - ngx_log_debug(rev->log, "http process request line"); - - if (rev->timedout) { - ngx_http_close_request(r, NGX_HTTP_REQUEST_TIME_OUT); - ngx_http_close_connection(c); - return; - } - - n = ngx_http_read_request_header(r); - - if (n == NGX_AGAIN || n == NGX_ERROR) { - return; - } - - rc = ngx_http_parse_request_line(r); - - if (rc == NGX_OK) { - - /* the request line has been parsed successfully */ - - /* STUB: we need to handle such URIs */ - if (r->complex_uri || r->unusual_uri) { - r->request_line.len = r->request_end - r->request_start; - r->request_line.data = r->request_start; - r->request_line.data[r->request_line.len] = '\0'; - - ngx_http_header_parse_error(r, NGX_HTTP_PARSE_INVALID_REQUEST); - ngx_http_finalize_request(r, NGX_HTTP_BAD_REQUEST); - return; - } - - cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module); - - if (r->http_version >= NGX_HTTP_VERSION_10 - && cscf->large_client_header == 0 - && r->header_in->pos == r->header_in->end) - { - /* no space for "\r\n" at the end of the header */ - - ngx_http_header_parse_error(r, NGX_HTTP_PARSE_TOO_LONG_URI); - ngx_http_finalize_request(r, NGX_HTTP_REQUEST_URI_TOO_LARGE); - return; - } - - /* copy URI */ - - if (r->args_start) { - r->uri.len = r->args_start - 1 - r->uri_start; - } else { - r->uri.len = r->uri_end - r->uri_start; - } - - r->uri.data = ngx_palloc(r->pool, r->uri.len + 1); - if (r->uri.data == NULL) { - ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR); - ngx_http_close_connection(c); - return; - } - - ngx_cpystrn(r->uri.data, r->uri_start, r->uri.len + 1); - -#if 1 /* THINK: needed to log url on errors in proxy only ? */ - - /* copy unparsed URI */ - - r->unparsed_uri.len = r->uri_end - r->uri_start; - r->unparsed_uri.data = ngx_palloc(r->pool, r->unparsed_uri.len + 1); - if (r->unparsed_uri.data == NULL) { - ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR); - ngx_http_close_connection(c); - return; - } - - ngx_cpystrn(r->unparsed_uri.data, r->uri_start, - r->unparsed_uri.len + 1); - -#endif - - r->request_line.len = r->request_end - r->request_start; - - /* if the large client headers are enabled then - we need to copy a request line */ - - if (cscf->large_client_header) { - - r->request_line.data = ngx_palloc(r->pool, r->request_line.len + 1); - if (r->request_line.data == NULL) { - ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR); - ngx_http_close_connection(c); - return; - } - - ngx_cpystrn(r->request_line.data, r->request_start, - r->request_line.len + 1); - - } else { - r->request_line.data = r->request_start; - r->request_line.data[r->request_line.len] = '\0'; - } - - /* copy URI extention if it exists */ - - 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 = ngx_palloc(r->pool, r->exten.len + 1); - if (r->exten.data == NULL) { - ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR); - ngx_http_close_connection(c); - return; - } - - ngx_cpystrn(r->exten.data, r->uri_ext, r->exten.len + 1); - } - - /* copy URI arguments if they exist */ - - if (r->args_start && r->uri_end > r->args_start) { - r->args.len = r->uri_end - r->args_start; - - r->args.data = ngx_palloc(r->pool, r->args.len + 1); - if (r->args.data == NULL) { - ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR); - ngx_http_close_connection(c); - return; - } - - ngx_cpystrn(r->args.data, r->args_start, r->args.len + 1); - } - -#if 1 /* DEBUG */ - if (r->exten.data == NULL) { r->exten.data = ""; } - if (r->args.data == NULL) { r->args.data = ""; } - ngx_log_debug(c->log, "HTTP: %d, %d, '%s', '%s', '%s'" _ - r->method _ r->http_version _ - r->uri.data _ r->exten.data _ r->args.data); - if (r->exten.data[0] == '\0') { r->exten.data = NULL; } - if (r->args.data[0] == '\0') { r->args.data = NULL; } -#endif - - if (r->http_version < NGX_HTTP_VERSION_10) { - rev->event_handler = ngx_http_block_read; - ngx_http_handler(r); - return; - } - - lctx = c->log->data; - lctx->action = "reading client request headers"; - lctx->url = r->unparsed_uri.data; - r->headers_in.headers = ngx_create_table(r->pool, 10); - - if (cscf->large_client_header - && r->header_in->pos == r->header_in->last) - { - r->header_in->pos = r->header_in->last = r->header_in->start; - } - - rev->event_handler = ngx_http_process_request_headers; - ngx_http_process_request_headers(rev); - - return; - - } else if (rc != NGX_AGAIN) { - - /* there was error while a request line parsing */ - - ngx_http_header_parse_error(r, rc); - ngx_http_finalize_request(r, NGX_HTTP_BAD_REQUEST); - - return; - } - - /* NGX_AGAIN: a request line parsing is still not complete */ - - if (r->header_in->last == r->header_in->end) { - - /* If it's a pipelined request and a request line is not complete - then we need to copy it to the start of the r->header_in hunk. - We need to copy it here only if the large client headers - are enabled otherwise a request line had been already copied - to the start of the r->header_in hunk in ngx_http_set_keepalive() */ - - cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module); - - if (cscf->large_client_header) { - offset = r->request_start - r->header_in->start; - - if (offset == 0) { - ngx_http_header_parse_error(r, NGX_HTTP_PARSE_TOO_LONG_URI); - ngx_http_finalize_request(r, NGX_HTTP_REQUEST_URI_TOO_LARGE); - - return; - } - - ngx_memcpy(r->header_in->start, r->request_start, - r->header_in->last - r->request_start); - - r->header_in->pos -= offset; - r->header_in->last -= offset; - r->request_start = r->header_in->start; - r->request_end -= offset; - r->uri_start -= offset; - r->uri_end -= offset; - if (r->uri_ext) { - r->uri_ext -= offset; - } - if (r->args_start) { - r->args_start -= offset; - } - - } else { - ngx_http_header_parse_error(r, NGX_HTTP_PARSE_TOO_LONG_URI); - ngx_http_finalize_request(r, NGX_HTTP_REQUEST_URI_TOO_LARGE); - } - } - - return; -} - - -static void ngx_http_process_request_headers(ngx_event_t *rev) -{ - int rc, i, offset; - size_t len; - ssize_t n; - ngx_table_elt_t *h; - ngx_connection_t *c; - ngx_http_request_t *r; - ngx_http_server_name_t *name; - ngx_http_core_srv_conf_t *cscf; - ngx_http_core_loc_conf_t *clcf; - - c = rev->data; - r = c->data; - - ngx_log_debug(rev->log, "http process request header line"); - - if (rev->timedout) { - ngx_http_close_request(r, NGX_HTTP_REQUEST_TIME_OUT); - ngx_http_close_connection(c); - return; - } - - cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module); - - 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_header_line(r, r->header_in); - - if (rc == NGX_OK) { - - /* a header line has been parsed successfully */ - - h = ngx_push_table(r->headers_in.headers); - if (h == NULL) { - ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR); - ngx_http_close_connection(c); - return; - } - - h->key.len = r->header_name_end - r->header_name_start; - h->value.len = r->header_end - r->header_start; - - /* if the large client headers are enabled then - we need to copy the header name and value */ - - if (cscf->large_client_header) { - h->key.data = ngx_palloc(r->pool, - h->key.len + 1 + h->value.len + 1); - if (h->key.data == NULL) { - ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR); - ngx_http_close_connection(c); - return; - } - - h->value.data = h->key.data + h->key.len + 1; - ngx_cpystrn(h->key.data, r->header_name_start, h->key.len + 1); - ngx_cpystrn(h->value.data, r->header_start, h->value.len + 1); - - } else { - h->key.data = r->header_name_start; - h->key.data[h->key.len] = '\0'; - h->value.data = r->header_start; - h->value.data[h->value.len] = '\0'; - } - - for (i = 0; headers_in[i].name.len != 0; i++) { - if (headers_in[i].name.len != h->key.len) { - continue; - } - - if (ngx_strcasecmp(headers_in[i].name.data, h->key.data) == 0) { - *((ngx_table_elt_t **) - ((char *) &r->headers_in + headers_in[i].offset)) = h; - } - } - - ngx_log_debug(r->connection->log, "HTTP header: '%s: %s'" _ - h->key.data _ h->value.data); - - if (cscf->large_client_header - && r->header_in->pos == r->header_in->last) - { - r->header_in->pos = r->header_in->last = r->header_in->start; - } - - continue; - - } else if (rc == NGX_HTTP_PARSE_HEADER_DONE) { - - /* a whole header has been parsed successfully */ - - ngx_log_debug(r->connection->log, "HTTP header done"); - - if (r->headers_in.host) { - for (len = 0; len < r->headers_in.host->value.len; len++) { - if (r->headers_in.host->value.data[len] == ':') { - break; - } - } - r->headers_in.host_name_len = len; - - /* find the name based server configuration */ - - name = r->virtual_names->elts; - for (i = 0; i < r->virtual_names->nelts; i++) { - if (r->headers_in.host_name_len != name[i].name.len) { - continue; - } - - if (ngx_strncasecmp(r->headers_in.host->value.data, - name[i].name.data, - r->headers_in.host_name_len) == 0) - { - r->srv_conf = name[i].core_srv_conf->ctx->srv_conf; - r->loc_conf = name[i].core_srv_conf->ctx->loc_conf; - - clcf = ngx_http_get_module_loc_conf(r, - ngx_http_core_module); - c->log->file = clcf->err_log->file; - c->log->log_level = clcf->err_log->log_level; - - break; - } - } - - } else { - if (r->http_version > NGX_HTTP_VERSION_10) { - ngx_http_header_parse_error(r, - NGX_HTTP_PARSE_NO_HOST_HEADER); - ngx_http_finalize_request(r, NGX_HTTP_BAD_REQUEST); - return; - } - r->headers_in.host_name_len = 0; - } - - if (r->headers_in.content_length) { - r->headers_in.content_length_n = - ngx_atoi(r->headers_in.content_length->value.data, - r->headers_in.content_length->value.len); - if (r->headers_in.content_length_n == NGX_ERROR) { - ngx_http_header_parse_error(r, - NGX_HTTP_PARSE_INVALID_CL_HEADER); - ngx_http_finalize_request(r, NGX_HTTP_BAD_REQUEST); - return; - } - } - - rev->event_handler = ngx_http_block_read; - ngx_http_handler(r); - return; - - } else if (rc != NGX_AGAIN) { - - /* there was error while a header line parsing */ - - ngx_http_header_parse_error(r, rc); - ngx_http_finalize_request(r, NGX_HTTP_BAD_REQUEST); - - return; - } - - /* NGX_AGAIN: a header line parsing is still not complete */ - - if (r->header_in->last == r->header_in->end) { - - /* if the large client headers are enabled then - we need to compact r->header_in hunk */ - - if (cscf->large_client_header) { - offset = r->header_name_start - r->header_in->start; - - if (offset == 0) { - ngx_http_header_parse_error(r, - NGX_HTTP_PARSE_TOO_LONG_HEADER); - ngx_http_finalize_request(r, NGX_HTTP_BAD_REQUEST); - return; - } - - ngx_memcpy(r->header_in->start, r->header_name_start, - r->header_in->last - r->header_name_start); - - r->header_in->last -= offset; - r->header_in->pos -= offset; - r->header_name_start = r->header_in->start; - r->header_name_end -= offset; - r->header_start -= offset; - r->header_end -= offset; - - } else { - ngx_http_header_parse_error(r, NGX_HTTP_PARSE_TOO_LONG_HEADER); - ngx_http_finalize_request(r, NGX_HTTP_BAD_REQUEST); - return; - } - } - } -} - - -static ssize_t ngx_http_read_request_header(ngx_http_request_t *r) -{ - int event; - ssize_t n; - ngx_event_t *rev; - ngx_http_core_srv_conf_t *cscf; - - rev = r->connection->read; - - n = r->header_in->last - r->header_in->pos; - - if (n > 0) { - rev->ready = 0; - return n; - } - - n = ngx_recv(r->connection, r->header_in->last, - r->header_in->end - r->header_in->last); - - if (n == NGX_AGAIN) { - if (!r->header_timeout_set) { - if (rev->timer_set) { - ngx_del_timer(rev); - } else { - rev->timer_set = 1; - } - - cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module); - - ngx_add_timer(rev, cscf->client_header_timeout); - r->header_timeout_set = 1; - } - - if (!rev->active) { - if (ngx_event_flags & NGX_HAVE_CLEAR_EVENT) { - /* kqueue */ - event = NGX_CLEAR_EVENT; - - } else { - /* select, poll, /dev/poll */ - event = NGX_LEVEL_EVENT; - } - - if (ngx_add_event(rev, NGX_READ_EVENT, event) == NGX_ERROR) { - ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR); - ngx_http_close_connection(r->connection); - return NGX_ERROR; - } - } - - return NGX_AGAIN; - } - - if (n == 0) { - ngx_log_error(NGX_LOG_INFO, r->connection->log, 0, - "client closed prematurely connection"); - } - - if (n == 0 || n == NGX_ERROR) { - ngx_http_close_request(r, NGX_HTTP_BAD_REQUEST); - ngx_http_close_connection(r->connection); - return NGX_ERROR; - } - - r->header_in->last += n; - - return n; -} - - -void ngx_http_finalize_request(ngx_http_request_t *r, int error) -{ - int rc; - ngx_event_t *rev, *wev; - - rc = error; - - if (rc >= NGX_HTTP_SPECIAL_RESPONSE) { - - rev = r->connection->read; - if (rev->timer_set) { - ngx_del_timer(rev); - rev->timer_set = 0; - } - - wev = r->connection->write; - if (wev->timer_set) { - ngx_del_timer(wev); - wev->timer_set = 0; - } - - rc = ngx_http_special_response_handler(r, rc); - - if (rc == NGX_AGAIN) { - return; - } - - if (rc == NGX_ERROR) { - ngx_http_close_request(r, 0); - ngx_http_close_connection(r->connection); - return; - } - - } else if (rc == NGX_ERROR) { - r->keepalive = 0; - r->lingering_close = 0; - } - - rev = r->connection->read; - if (rev->timer_set) { - ngx_del_timer(rev); - rev->timer_set = 0; - } - - wev = r->connection->write; - if (wev->timer_set) { - ngx_del_timer(wev); - wev->timer_set = 0; - } - - if (r->keepalive != 0) { - ngx_http_set_keepalive(r); - - } else if (r->lingering_close) { - ngx_http_set_lingering_close(r); - - } else { - ngx_http_close_request(r, 0); - ngx_http_close_connection(r->connection); - } -} - - -void ngx_http_set_write_handler(ngx_http_request_t *r) -{ - int event; - ngx_event_t *wev; - ngx_http_core_loc_conf_t *clcf; - - wev = r->connection->write; - wev->event_handler = ngx_http_writer; - - if (wev->delayed && wev->ready) { - return; - } - - clcf = ngx_http_get_module_loc_conf(r->main ? r->main : r, - ngx_http_core_module); - ngx_add_timer(wev, clcf->send_timeout); - wev->timer_set = 1; - - if (ngx_event_flags & (NGX_HAVE_AIO_EVENT|NGX_HAVE_EDGE_EVENT)) { - /* aio, iocp, epoll */ - return; - } - -#if (HAVE_LOWAT_EVENT) /* kqueue's NOTE_LOWAT */ - - if (ngx_event_flags & NGX_HAVE_LOWAT_EVENT) { - wev->lowat = clcf->send_lowat; - } - -#endif - - if (ngx_event_flags & NGX_HAVE_CLEAR_EVENT) { - /* kqueue */ - event = NGX_CLEAR_EVENT; - - } else { - /* select, poll, /dev/poll */ - event = NGX_LEVEL_EVENT; - } - - if (ngx_add_event(wev, NGX_WRITE_EVENT, event) == NGX_ERROR) { - ngx_http_close_request(r, 0); - ngx_http_close_connection(r->connection); - } -} - - -static void ngx_http_writer(ngx_event_t *wev) -{ - int rc; - ngx_event_t *rev; - ngx_connection_t *c; - ngx_http_request_t *r; - ngx_http_core_loc_conf_t *clcf; - - c = wev->data; - r = c->data; - - rc = ngx_http_output_filter(r, NULL); - - ngx_log_debug(c->log, "writer output filter: %d" _ rc); - - if (rc == NGX_AGAIN) { - - clcf = ngx_http_get_module_loc_conf(r->main ? r->main : r, - ngx_http_core_module); - if (wev->timer_set) { - ngx_del_timer(wev); - } else { - wev->timer_set = 1; - } - - ngx_add_timer(wev, clcf->send_timeout); - - return; - } - - if (rc == NGX_ERROR) { - ngx_http_close_request(r, 0); - ngx_http_close_connection(c); - return; - } - - /* rc == NGX_OK */ - - ngx_log_debug(c->log, "http writer done"); - - rev = r->connection->read; - if (rev->timer_set) { - ngx_del_timer(rev); - rev->timer_set = 0; - } - - if (wev->timer_set) { - ngx_del_timer(wev); - wev->timer_set = 0; - } - - if (r->keepalive != 0) { - ngx_http_set_keepalive(r); - - } else if (r->lingering_close) { - ngx_http_set_lingering_close(r); - - } else { - ngx_http_close_request(r, 0); - ngx_http_close_connection(r->connection); - } -} - - -static void ngx_http_block_read(ngx_event_t *rev) -{ - ngx_connection_t *c; - ngx_http_request_t *r; - - ngx_log_debug(rev->log, "http read blocked"); - - /* aio does not call this handler */ - - if (ngx_event_flags & NGX_USE_LEVEL_EVENT) { - - /* select, poll, /dev/poll */ - - rev->blocked = 1; - - if (ngx_del_event(rev, NGX_READ_EVENT, 0) == NGX_ERROR) { - c = (ngx_connection_t *) rev->data; - r = (ngx_http_request_t *) c->data; - ngx_http_close_request(r, 0); - ngx_http_close_connection(c); - } - } - - /* kqueue, epoll */ - - return; -} - - -int ngx_http_discard_body(ngx_http_request_t *r) -{ - ssize_t size; - ngx_event_t *rev; - - rev = r->connection->read; - - ngx_log_debug(rev->log, "set discard body"); - - if (rev->timer_set) { - ngx_del_timer(rev); - rev->timer_set = 0; - } - - if (r->headers_in.content_length_n > 0) { - - size = r->header_in->last - r->header_in->pos; - - if (size) { - if (r->headers_in.content_length_n > size) { - r->headers_in.content_length_n -= size; - - } else { - r->header_in->pos += r->headers_in.content_length_n; - r->headers_in.content_length_n = 0; - return NGX_OK; - } - } - - rev->event_handler = ngx_http_read_discarded_body_event; - - if (rev->blocked) { - if (ngx_event_flags & NGX_USE_LEVEL_EVENT) { - if (ngx_add_event(rev, NGX_READ_EVENT, NGX_LEVEL_EVENT) - == NGX_ERROR) { - return NGX_HTTP_INTERNAL_SERVER_ERROR; - } - } - - rev->blocked = 0; - return ngx_http_read_discarded_body(r); - } - } - - return NGX_OK; -} - - -static void ngx_http_read_discarded_body_event(ngx_event_t *rev) -{ - int rc; - ngx_connection_t *c; - ngx_http_request_t *r; - - c = rev->data; - r = c->data; - - rc = ngx_http_read_discarded_body(r); - - if (rc != NGX_OK) { - ngx_http_close_request(r, rc); - ngx_http_close_connection(c); - } -} - - -static int ngx_http_read_discarded_body(ngx_http_request_t *r) -{ - ssize_t size, n; - ngx_http_core_loc_conf_t *clcf; - - ngx_log_debug(r->connection->log, "http read discarded body"); - - clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module); - - if (r->discarded_buffer == NULL) { - r->discarded_buffer = ngx_palloc(r->pool, clcf->discarded_buffer_size); - if (r->discarded_buffer == NULL) { - return NGX_HTTP_INTERNAL_SERVER_ERROR; - } - } - - size = r->headers_in.content_length_n; - if (size > clcf->discarded_buffer_size) { - size = clcf->discarded_buffer_size; - } - - n = ngx_recv(r->connection, r->discarded_buffer, size); - if (n == NGX_ERROR) { - return NGX_HTTP_BAD_REQUEST; - } - - if (n == NGX_AGAIN) { - return NGX_OK; - } - - r->headers_in.content_length_n -= n; - - return NGX_OK; -} - - -static void ngx_http_set_keepalive(ngx_http_request_t *r) -{ - int len, blocked; - ngx_hunk_t *h; - ngx_event_t *rev, *wev; - ngx_connection_t *c; - ngx_http_log_ctx_t *ctx; - ngx_http_core_srv_conf_t *cscf; - ngx_http_core_loc_conf_t *clcf; - - c = r->connection; - rev = c->read; - - ngx_log_debug(c->log, "set http keepalive handler"); - - ctx = (ngx_http_log_ctx_t *) c->log->data; - ctx->action = "closing request"; - ngx_http_close_request(r, 0); - - if (rev->timer_set) { - ngx_del_timer(rev); - } else { - rev->timer_set = 1; - } - - clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module); - - ngx_add_timer(rev, clcf->keepalive_timeout); - - if (rev->blocked && (ngx_event_flags & NGX_USE_LEVEL_EVENT)) { - if (ngx_add_event(rev, NGX_READ_EVENT, NGX_LEVEL_EVENT) == NGX_ERROR) { - ngx_http_close_connection(c); - return; - } - - blocked = 1; - rev->blocked = 0; - - } else { - blocked = 0; - } - - h = c->buffer; - - /* pipelined request */ - if (h->pos < h->last) { - - /* We do not know here whether a pipelined request is complete - so if the large client headers are not enabled - we need to copy the data to the start of c->buffer. - This copy should be rare because clients that support - pipelined requests (Mozilla 1.x, Opera 6.x) are still rare */ - - cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module); - - if (!cscf->large_client_header) { - len = h->last - h->pos; - ngx_memcpy(h->start, h->pos, len); - h->pos = h->start; - h->last = h->start + len; - } - - ngx_log_debug(c->log, "pipelined request"); - - c->pipeline = 1; - ctx->action = "reading client pipelined request line"; - ngx_http_init_request(rev); - return; - } - - c->pipeline = 0; - - h->pos = h->last = h->start; - rev->event_handler = ngx_http_keepalive_handler; - wev = c->write; - - if (wev->active) { - if (ngx_event_flags & NGX_USE_LEVEL_EVENT) { - if (ngx_del_event(wev, NGX_WRITE_EVENT, 0) == NGX_ERROR) { - ngx_http_close_connection(c); - return; - } - - } else if ((ngx_event_flags & NGX_HAVE_AIO_EVENT) == 0) { - wev->event_handler = ngx_http_empty_handler; - } - } - - ctx->action = "keepalive"; - - if (c->tcp_nopush) { - if (ngx_tcp_push(c->fd) == NGX_ERROR) { - ngx_log_error(NGX_LOG_CRIT, c->log, ngx_socket_errno, - ngx_tcp_push_n " failed"); - ngx_http_close_connection(c); - return; - } - c->tcp_nopush = 0; - } - - if ((ngx_event_flags & NGX_HAVE_AIO_EVENT) || blocked) { - ngx_http_keepalive_handler(rev); - } -} - - -static void ngx_http_keepalive_handler(ngx_event_t *rev) -{ - ssize_t n; - ngx_connection_t *c; - ngx_http_log_ctx_t *lctx; - - c = (ngx_connection_t *) rev->data; - - ngx_log_debug(c->log, "http keepalive handler"); - - if (rev->timedout) { - ngx_http_close_connection(c); - return; - } - - /* MSIE closes a keepalive connection with RST flag - so we ignore ECONNRESET here */ - - rev->ignore_econnreset = 1; - ngx_set_socket_errno(0); - n = ngx_recv(c, c->buffer->last, c->buffer->end - c->buffer->last); - rev->ignore_econnreset = 0; - - if (n == NGX_AGAIN) { - return; - } - - if (n == NGX_ERROR) { - ngx_http_close_connection(c); - return; - } - - lctx = (ngx_http_log_ctx_t *) rev->log->data; - rev->log->handler = NULL; - - if (n == 0) { - ngx_log_error(NGX_LOG_INFO, c->log, ngx_socket_errno, - "client %s closed keepalive connection", lctx->client); - ngx_http_close_connection(c); - return; - } - - c->buffer->last += n; - rev->log->handler = ngx_http_log_error; - lctx->action = "reading client request line"; - - ngx_http_init_request(rev); -} - - -static void ngx_http_set_lingering_close(ngx_http_request_t *r) -{ - ngx_event_t *rev; - ngx_connection_t *c; - 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); - - r->lingering_time = ngx_time() + clcf->lingering_time / 1000; - rev->event_handler = ngx_http_lingering_close_handler; - - if (rev->timer_set) { - ngx_del_timer(rev); - } else { - rev->timer_set = 1; - } - - ngx_add_timer(rev, clcf->lingering_timeout); - - if (rev->blocked && (ngx_event_flags & NGX_USE_LEVEL_EVENT)) { - if (ngx_add_event(rev, NGX_READ_EVENT, NGX_LEVEL_EVENT) == NGX_ERROR) { - ngx_http_close_request(r, 0); - ngx_http_close_connection(c); - return; - } - rev->blocked = 0; - } - - if (c->write->active) { - if (ngx_event_flags & NGX_USE_LEVEL_EVENT) { - if (ngx_del_event(c->write, NGX_WRITE_EVENT, 0) == NGX_ERROR) { - ngx_http_close_request(r, 0); - ngx_http_close_connection(c); - return; - } - - } else if ((ngx_event_flags & NGX_HAVE_AIO_EVENT) == 0) { - c->write->event_handler = ngx_http_empty_handler; - } - } - - if (ngx_shutdown_socket(c->fd, NGX_WRITE_SHUTDOWN) == -1) { - ngx_log_error(NGX_LOG_CRIT, c->log, ngx_socket_errno, - ngx_shutdown_socket_n " failed"); - ngx_http_close_request(r, 0); - ngx_http_close_connection(c); - return; - } - - if (rev->ready || (ngx_event_flags & NGX_HAVE_AIO_EVENT)) { - 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; - - c = rev->data; - r = c->data; - - ngx_log_debug(c->log, "http lingering close handler"); - - if (rev->timedout) { - ngx_http_close_request(r, 0); - ngx_http_close_connection(c); - return; - } - - timer = r->lingering_time - ngx_time(); - if (timer <= 0) { - ngx_http_close_request(r, 0); - ngx_http_close_connection(c); - return; - } - - clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module); - - if (r->discarded_buffer == NULL) { - - /* TODO: r->header_in->start (if large headers are enabled) - or the end of parsed header (otherwise) - instead of r->header_in->last */ - - if (r->header_in->end - r->header_in->last - >= clcf->discarded_buffer_size) { - r->discarded_buffer = r->header_in->last; - - } else { - r->discarded_buffer = ngx_palloc(c->pool, - clcf->discarded_buffer_size); - if (r->discarded_buffer) { - ngx_http_close_request(r, 0); - ngx_http_close_connection(c); - return; - } - } - } - - do { - n = ngx_recv(c, r->discarded_buffer, clcf->discarded_buffer_size); - - ngx_log_debug(c->log, "lingering read: %d" _ n); - - if (n == NGX_ERROR || n == 0) { - ngx_http_close_request(r, 0); - ngx_http_close_connection(c); - return; - } - - } while (rev->ready); - - timer *= 1000; - if (timer > clcf->lingering_timeout) { - timer = clcf->lingering_timeout; - } - - if (rev->timer_set) { - ngx_del_timer(rev); - } else { - rev->timer_set = 1; - } - ngx_add_timer(rev, timer); - - return; -} - - -static void ngx_http_empty_handler(ngx_event_t *wev) -{ - ngx_log_debug(wev->log, "http empty handler"); - - return; -} - - -void ngx_http_close_request(ngx_http_request_t *r, int error) -{ - ngx_http_log_ctx_t *ctx; - - ngx_log_debug(r->connection->log, "close http request"); - - if (r->pool == NULL) { - ngx_log_error(NGX_LOG_ALERT, r->connection->log, 0, - "http request already closed"); - return; - } - - if (error) { - r->headers_out.status = error; - } - - ngx_http_log_handler(r); - - if (r->file.fd != NGX_INVALID_FILE) { - if (ngx_close_file(r->file.fd) == NGX_FILE_ERROR) { - ngx_log_error(NGX_LOG_ALERT, r->connection->log, ngx_errno, - ngx_close_file_n " \"%s\" failed", r->file.name.data); - } - } - - /* ctx->url was allocated from r->pool */ - ctx = (ngx_http_log_ctx_t *) r->connection->log->data; - ctx->url = NULL; - - ngx_destroy_pool(r->pool); -} - - -void ngx_http_close_connection(ngx_connection_t *c) -{ - ngx_log_debug(c->log, "close connection: %d" _ c->fd); - - if (c->pool == NULL) { - ngx_log_error(NGX_LOG_ALERT, c->log, 0, "connection already closed"); - return; - } - - if (c->read->timer_set) { - ngx_del_timer(c->read); - c->read->timer_set = 0; - } - - if (c->write->timer_set) { - ngx_del_timer(c->write); - c->write->timer_set = 0; - } - - if (ngx_del_conn) { - ngx_del_conn(c); - - } else { - if (c->read->active) { - ngx_del_event(c->read, NGX_READ_EVENT, NGX_CLOSE_EVENT); - } - - if (c->write->active) { - ngx_del_event(c->write, NGX_WRITE_EVENT, NGX_CLOSE_EVENT); - } - } - - if (ngx_close_socket(c->fd) == -1) { - ngx_log_error(NGX_LOG_ALERT, c->log, ngx_socket_errno, - ngx_close_socket_n " failed"); - } - - c->fd = -1; - - ngx_destroy_pool(c->pool); -} - - -static void ngx_http_header_parse_error(ngx_http_request_t *r, int parse_err) -{ - ngx_http_log_ctx_t *ctx; - - ctx = r->connection->log->data; - r->connection->log->handler = NULL; - - if (ctx->url) { - ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, - header_errors[parse_err - NGX_HTTP_PARSE_INVALID_METHOD], - ctx->client, ctx->url); - - } else { - ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, - header_errors[parse_err - NGX_HTTP_PARSE_INVALID_METHOD], - ctx->client); - } - - r->connection->log->handler = ngx_http_log_error; -} - - -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->action && ctx->url) { - return ngx_snprintf(buf, len, " while %s, client: %s, URL: %s", - ctx->action, ctx->client, ctx->url); - - } else if (ctx->action == NULL && ctx->url) { - return ngx_snprintf(buf, len, ", client: %s, URL: %s", - ctx->client, ctx->url); - - } else { - return ngx_snprintf(buf, len, " while %s, client: %s", - ctx->action, ctx->client); - } -}
--- a/src/http/ngx_http_output_filter.c Wed Oct 08 15:32:54 2003 +0000 +++ b/src/http/ngx_http_output_filter.c Thu Oct 09 07:00:45 2003 +0000 @@ -72,10 +72,11 @@ #define ngx_next_filter (*ngx_http_top_body_filter) #define need_to_copy(r, hunk) \ - (((r->filter & NGX_HTTP_FILTER_NEED_IN_MEMORY) \ - && (hunk->type & NGX_HUNK_IN_MEMORY) == 0) \ - || ((r->filter & NGX_HTTP_FILTER_NEED_TEMP) \ - && (hunk->type & (NGX_HUNK_MEMORY|NGX_HUNK_MMAP)))) + (!ngx_hunk_special(hunk) \ + && (((r->filter & NGX_HTTP_FILTER_NEED_IN_MEMORY) \ + && (hunk->type & NGX_HUNK_IN_MEMORY) == 0) \ + || ((r->filter & NGX_HTTP_FILTER_NEED_TEMP) \ + && (hunk->type & (NGX_HUNK_MEMORY|NGX_HUNK_MMAP))))) @@ -201,6 +202,8 @@ *ctx->last_out = ce; ctx->last_out = &ce->next; ctx->hunk = NULL; + + break; } if (ctx->out == NULL && last != NGX_NONE) {
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/src/http/ngx_http_request.c Thu Oct 09 07:00:45 2003 +0000 @@ -0,0 +1,1541 @@ + +#include <ngx_config.h> +#include <ngx_core.h> +#include <ngx_event.h> +#include <ngx_http.h> + + +static void ngx_http_init_request(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 void ngx_http_writer(ngx_event_t *ev); + +static void ngx_http_block_read(ngx_event_t *ev); +static void ngx_http_read_discarded_body_event(ngx_event_t *rev); +static int ngx_http_read_discarded_body(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 void ngx_http_empty_handler(ngx_event_t *wev); + +static void ngx_http_header_parse_error(ngx_http_request_t *r, int parse_err); +static size_t ngx_http_log_error(void *data, char *buf, size_t len); + + +/* NGX_HTTP_PARSE_ ... errors */ + +static char *header_errors[] = { + "client %s sent invalid method", + "client %s sent invalid request", + "client %s sent too long URI", + "client %s sent invalid method in HTTP/0.9 request", + + "client %s sent invalid header, URL: %s", + "client %s sent too long header line, URL: %s", + "client %s sent HTTP/1.1 request without \"Host\" header, URL: %s", + "client %s sent invalid \"Content-Length\" header, URL: %s" +}; + + + +static ngx_http_header_t headers_in[] = { + { ngx_string("Host"), offsetof(ngx_http_headers_in_t, host) }, + { ngx_string("Connection"), offsetof(ngx_http_headers_in_t, connection) }, + { ngx_string("If-Modified-Since"), + offsetof(ngx_http_headers_in_t, if_modified_since) }, + { ngx_string("Content-Length"), + offsetof(ngx_http_headers_in_t, content_length) }, + { ngx_string("Accept-Encoding"), + offsetof(ngx_http_headers_in_t, accept_encoding) }, + + { ngx_string("Range"), offsetof(ngx_http_headers_in_t, range) }, +#if 0 + { ngx_string("If-Range"), offsetof(ngx_http_headers_in_t, if_range) }, +#endif + + { ngx_string("User-Agent"), offsetof(ngx_http_headers_in_t, user_agent) }, + + { ngx_null_string, 0 } +}; + + +void ngx_http_init_connection(ngx_connection_t *c) +{ + int event; + ngx_event_t *rev; + ngx_http_log_ctx_t *lctx; + + c->addr_text.data = ngx_palloc(c->pool, c->listening->addr_text_max_len); + if (c->addr_text.data == NULL) { + ngx_http_close_connection(c); + return; + } + + c->addr_text.len = ngx_sock_ntop(c->listening->family, c->sockaddr, + c->addr_text.data, + c->listening->addr_text_max_len); + if (c->addr_text.len == 0) { + ngx_http_close_connection(c); + return; + } + + lctx = ngx_pcalloc(c->pool, sizeof(ngx_http_log_ctx_t)); + if (lctx == NULL) { + ngx_http_close_connection(c); + return; + } + + lctx->client = c->addr_text.data; + lctx->action = "reading client request line"; + c->log->data = lctx; + c->log->handler = ngx_http_log_error; + + rev = c->read; + rev->event_handler = ngx_http_init_request; + + if (rev->ready) { + /* deferred accept */ + ngx_http_init_request(rev); + return; + } + + ngx_add_timer(rev, c->listening->post_accept_timeout); + rev->timer_set = 1; + + if (ngx_event_flags & (NGX_HAVE_AIO_EVENT|NGX_HAVE_EDGE_EVENT)) { + /* aio, iocp, epoll */ + ngx_http_init_request(rev); + return; + } + + if (ngx_event_flags & NGX_HAVE_CLEAR_EVENT) { + /* kqueue */ + event = NGX_CLEAR_EVENT; + + } else { + /* select, poll, /dev/poll */ + event = NGX_LEVEL_EVENT; + } + + if (ngx_add_event(rev, NGX_READ_EVENT, event) == NGX_ERROR) { + ngx_http_close_connection(c); + } +} + + +static void ngx_http_init_request(ngx_event_t *rev) +{ + int i; + socklen_t len; + struct sockaddr_in addr_in; + ngx_connection_t *c; + ngx_http_request_t *r; + ngx_http_in_port_t *in_port; + ngx_http_in_addr_t *in_addr; + ngx_http_server_name_t *server_name; + ngx_http_core_srv_conf_t *cscf; + ngx_http_core_loc_conf_t *clcf; + + c = rev->data; + + r = ngx_pcalloc(c->pool, sizeof(ngx_http_request_t)); + if (r == NULL) { + ngx_http_close_connection(c); + return; + } + + /* find the server configuration for the address:port */ + + /* AF_INET only */ + + in_port = c->servers; + in_addr = in_port->addrs.elts; + +ngx_log_debug(rev->log, "IN: %08x" _ in_port); + + r->port = in_port->port; + r->port_name = &in_port->port_name; + + i = 0; + + if (in_port->addrs.nelts > 1) { + + /* + * there're the several addresses on this port and one of them + * is "*:port" so getsockname() is needed to determine + * the server address. + * AcceptEx() already gave this address. + */ + +#if (WIN32) + if (c->local_sockaddr) { + r->in_addr = + ((struct sockaddr_in *) c->local_sockaddr)->sin_addr.s_addr; + + } else { +#endif + len = sizeof(struct sockaddr_in); + if (getsockname(c->fd, (struct sockaddr *) &addr_in, &len) == -1) { + ngx_log_error(NGX_LOG_CRIT, rev->log, ngx_socket_errno, + "getsockname() failed"); + ngx_http_close_connection(c); + return; + } +#if (WIN32) + } +#endif + + r->in_addr = addr_in.sin_addr.s_addr; + + /* the last in_port->addrs address is "*" */ + + for ( /* void */ ; i < in_port->addrs.nelts - 1; i++) { + if (in_addr[i].addr == r->in_addr) { + break; + } + } + + } else { + r->in_addr = in_addr[0].addr; + } + + r->virtual_names = &in_addr[i].names; + + /* the default server configuration for the address:port */ + cscf = in_addr[i].core_srv_conf; + + r->main_conf = cscf->ctx->main_conf; + r->srv_conf = cscf->ctx->srv_conf; + r->loc_conf = cscf->ctx->loc_conf; + + server_name = cscf->server_names.elts; + r->server_name = &server_name->name; + + clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module); + c->log->file = clcf->err_log->file; + c->log->log_level = clcf->err_log->log_level; + + if (c->buffer == NULL) { + c->buffer = ngx_create_temp_hunk(c->pool, + cscf->client_header_buffer_size, + 0, 0); + if (c->buffer == NULL) { + ngx_http_close_connection(c); + return; + } + } + + r->pool = ngx_create_pool(cscf->request_pool_size, c->log); + if (r->pool == NULL) { + ngx_http_close_connection(c); + return; + } + + r->headers_out.headers = ngx_create_table(r->pool, 10); + if (r->headers_out.headers == NULL) { + ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR); + ngx_http_close_connection(c); + return; + } + + r->ctx = ngx_pcalloc(r->pool, sizeof(void *) * ngx_http_max_module); + if (r->ctx == NULL) { + ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR); + ngx_http_close_connection(c); + return; + } + + c->sent = 0; + c->data = r; + r->connection = c; + r->pipeline = c->pipeline; + r->header_in = c->buffer; + + r->file.fd = NGX_INVALID_FILE; + + r->headers_in.content_length_n = -1; + r->headers_out.content_length = -1; + r->headers_out.last_modified_time = -1; + + rev->event_handler = ngx_http_process_request_line; + ngx_http_process_request_line(rev); +} + + +static void ngx_http_process_request_line(ngx_event_t *rev) +{ + int rc, offset; + ssize_t n; + ngx_connection_t *c; + ngx_http_request_t *r; + ngx_http_log_ctx_t *lctx; + ngx_http_core_srv_conf_t *cscf; + + c = rev->data; + r = c->data; + + ngx_log_debug(rev->log, "http process request line"); + + if (rev->timedout) { + ngx_http_close_request(r, NGX_HTTP_REQUEST_TIME_OUT); + ngx_http_close_connection(c); + return; + } + + n = ngx_http_read_request_header(r); + + if (n == NGX_AGAIN || n == NGX_ERROR) { + return; + } + + rc = ngx_http_parse_request_line(r); + + if (rc == NGX_OK) { + + /* the request line has been parsed successfully */ + + /* STUB: we need to handle such URIs */ + if (r->complex_uri || r->unusual_uri) { + r->request_line.len = r->request_end - r->request_start; + r->request_line.data = r->request_start; + r->request_line.data[r->request_line.len] = '\0'; + + ngx_http_header_parse_error(r, NGX_HTTP_PARSE_INVALID_REQUEST); + ngx_http_finalize_request(r, NGX_HTTP_BAD_REQUEST); + return; + } + + cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module); + + if (r->http_version >= NGX_HTTP_VERSION_10 + && cscf->large_client_header == 0 + && r->header_in->pos == r->header_in->end) + { + /* no space for "\r\n" at the end of the header */ + + ngx_http_header_parse_error(r, NGX_HTTP_PARSE_TOO_LONG_URI); + ngx_http_finalize_request(r, NGX_HTTP_REQUEST_URI_TOO_LARGE); + return; + } + + /* copy URI */ + + if (r->args_start) { + r->uri.len = r->args_start - 1 - r->uri_start; + } else { + r->uri.len = r->uri_end - r->uri_start; + } + + r->uri.data = ngx_palloc(r->pool, r->uri.len + 1); + if (r->uri.data == NULL) { + ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR); + ngx_http_close_connection(c); + return; + } + + ngx_cpystrn(r->uri.data, r->uri_start, r->uri.len + 1); + +#if 1 /* THINK: needed to log url on errors in proxy only ? */ + + /* copy unparsed URI */ + + r->unparsed_uri.len = r->uri_end - r->uri_start; + r->unparsed_uri.data = ngx_palloc(r->pool, r->unparsed_uri.len + 1); + if (r->unparsed_uri.data == NULL) { + ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR); + ngx_http_close_connection(c); + return; + } + + ngx_cpystrn(r->unparsed_uri.data, r->uri_start, + r->unparsed_uri.len + 1); + +#endif + + r->request_line.len = r->request_end - r->request_start; + + /* if the large client headers are enabled then + we need to copy a request line */ + + if (cscf->large_client_header) { + + r->request_line.data = ngx_palloc(r->pool, r->request_line.len + 1); + if (r->request_line.data == NULL) { + ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR); + ngx_http_close_connection(c); + return; + } + + ngx_cpystrn(r->request_line.data, r->request_start, + r->request_line.len + 1); + + } else { + r->request_line.data = r->request_start; + r->request_line.data[r->request_line.len] = '\0'; + } + + /* copy URI extention if it exists */ + + 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 = ngx_palloc(r->pool, r->exten.len + 1); + if (r->exten.data == NULL) { + ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR); + ngx_http_close_connection(c); + return; + } + + ngx_cpystrn(r->exten.data, r->uri_ext, r->exten.len + 1); + } + + /* copy URI arguments if they exist */ + + if (r->args_start && r->uri_end > r->args_start) { + r->args.len = r->uri_end - r->args_start; + + r->args.data = ngx_palloc(r->pool, r->args.len + 1); + if (r->args.data == NULL) { + ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR); + ngx_http_close_connection(c); + return; + } + + ngx_cpystrn(r->args.data, r->args_start, r->args.len + 1); + } + +#if 1 /* DEBUG */ + if (r->exten.data == NULL) { r->exten.data = ""; } + if (r->args.data == NULL) { r->args.data = ""; } + ngx_log_debug(c->log, "HTTP: %d, %d, '%s', '%s', '%s'" _ + r->method _ r->http_version _ + r->uri.data _ r->exten.data _ r->args.data); + if (r->exten.data[0] == '\0') { r->exten.data = NULL; } + if (r->args.data[0] == '\0') { r->args.data = NULL; } +#endif + + if (r->http_version < NGX_HTTP_VERSION_10) { + rev->event_handler = ngx_http_block_read; + ngx_http_handler(r); + return; + } + + lctx = c->log->data; + lctx->action = "reading client request headers"; + lctx->url = r->unparsed_uri.data; + r->headers_in.headers = ngx_create_table(r->pool, 10); + + if (cscf->large_client_header + && r->header_in->pos == r->header_in->last) + { + r->header_in->pos = r->header_in->last = r->header_in->start; + } + + rev->event_handler = ngx_http_process_request_headers; + ngx_http_process_request_headers(rev); + + return; + + } else if (rc != NGX_AGAIN) { + + /* there was error while a request line parsing */ + + ngx_http_header_parse_error(r, rc); + ngx_http_finalize_request(r, NGX_HTTP_BAD_REQUEST); + + return; + } + + /* NGX_AGAIN: a request line parsing is still not complete */ + + if (r->header_in->last == r->header_in->end) { + + /* If it's a pipelined request and a request line is not complete + then we need to copy it to the start of the r->header_in hunk. + We need to copy it here only if the large client headers + are enabled otherwise a request line had been already copied + to the start of the r->header_in hunk in ngx_http_set_keepalive() */ + + cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module); + + if (cscf->large_client_header) { + offset = r->request_start - r->header_in->start; + + if (offset == 0) { + ngx_http_header_parse_error(r, NGX_HTTP_PARSE_TOO_LONG_URI); + ngx_http_finalize_request(r, NGX_HTTP_REQUEST_URI_TOO_LARGE); + + return; + } + + ngx_memcpy(r->header_in->start, r->request_start, + r->header_in->last - r->request_start); + + r->header_in->pos -= offset; + r->header_in->last -= offset; + r->request_start = r->header_in->start; + r->request_end -= offset; + r->uri_start -= offset; + r->uri_end -= offset; + if (r->uri_ext) { + r->uri_ext -= offset; + } + if (r->args_start) { + r->args_start -= offset; + } + + } else { + ngx_http_header_parse_error(r, NGX_HTTP_PARSE_TOO_LONG_URI); + ngx_http_finalize_request(r, NGX_HTTP_REQUEST_URI_TOO_LARGE); + } + } + + return; +} + + +static void ngx_http_process_request_headers(ngx_event_t *rev) +{ + int rc, i, offset; + size_t len; + ssize_t n; + ngx_table_elt_t *h; + ngx_connection_t *c; + ngx_http_request_t *r; + ngx_http_server_name_t *name; + ngx_http_core_srv_conf_t *cscf; + ngx_http_core_loc_conf_t *clcf; + + c = rev->data; + r = c->data; + + ngx_log_debug(rev->log, "http process request header line"); + + if (rev->timedout) { + ngx_http_close_request(r, NGX_HTTP_REQUEST_TIME_OUT); + ngx_http_close_connection(c); + return; + } + + cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module); + + 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_header_line(r, r->header_in); + + if (rc == NGX_OK) { + + /* a header line has been parsed successfully */ + + h = ngx_push_table(r->headers_in.headers); + if (h == NULL) { + ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR); + ngx_http_close_connection(c); + return; + } + + h->key.len = r->header_name_end - r->header_name_start; + h->value.len = r->header_end - r->header_start; + + /* if the large client headers are enabled then + we need to copy the header name and value */ + + if (cscf->large_client_header) { + h->key.data = ngx_palloc(r->pool, + h->key.len + 1 + h->value.len + 1); + if (h->key.data == NULL) { + ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR); + ngx_http_close_connection(c); + return; + } + + h->value.data = h->key.data + h->key.len + 1; + ngx_cpystrn(h->key.data, r->header_name_start, h->key.len + 1); + ngx_cpystrn(h->value.data, r->header_start, h->value.len + 1); + + } else { + h->key.data = r->header_name_start; + h->key.data[h->key.len] = '\0'; + h->value.data = r->header_start; + h->value.data[h->value.len] = '\0'; + } + + for (i = 0; headers_in[i].name.len != 0; i++) { + if (headers_in[i].name.len != h->key.len) { + continue; + } + + if (ngx_strcasecmp(headers_in[i].name.data, h->key.data) == 0) { + *((ngx_table_elt_t **) + ((char *) &r->headers_in + headers_in[i].offset)) = h; + } + } + + ngx_log_debug(r->connection->log, "HTTP header: '%s: %s'" _ + h->key.data _ h->value.data); + + if (cscf->large_client_header + && r->header_in->pos == r->header_in->last) + { + r->header_in->pos = r->header_in->last = r->header_in->start; + } + + continue; + + } else if (rc == NGX_HTTP_PARSE_HEADER_DONE) { + + /* a whole header has been parsed successfully */ + + ngx_log_debug(r->connection->log, "HTTP header done"); + + if (r->headers_in.host) { + for (len = 0; len < r->headers_in.host->value.len; len++) { + if (r->headers_in.host->value.data[len] == ':') { + break; + } + } + r->headers_in.host_name_len = len; + + /* find the name based server configuration */ + + name = r->virtual_names->elts; + for (i = 0; i < r->virtual_names->nelts; i++) { + if (r->headers_in.host_name_len != name[i].name.len) { + continue; + } + + if (ngx_strncasecmp(r->headers_in.host->value.data, + name[i].name.data, + r->headers_in.host_name_len) == 0) + { + r->srv_conf = name[i].core_srv_conf->ctx->srv_conf; + r->loc_conf = name[i].core_srv_conf->ctx->loc_conf; + + clcf = ngx_http_get_module_loc_conf(r, + ngx_http_core_module); + c->log->file = clcf->err_log->file; + c->log->log_level = clcf->err_log->log_level; + + break; + } + } + + } else { + if (r->http_version > NGX_HTTP_VERSION_10) { + ngx_http_header_parse_error(r, + NGX_HTTP_PARSE_NO_HOST_HEADER); + ngx_http_finalize_request(r, NGX_HTTP_BAD_REQUEST); + return; + } + r->headers_in.host_name_len = 0; + } + + if (r->headers_in.content_length) { + r->headers_in.content_length_n = + ngx_atoi(r->headers_in.content_length->value.data, + r->headers_in.content_length->value.len); + if (r->headers_in.content_length_n == NGX_ERROR) { + ngx_http_header_parse_error(r, + NGX_HTTP_PARSE_INVALID_CL_HEADER); + ngx_http_finalize_request(r, NGX_HTTP_BAD_REQUEST); + return; + } + } + + rev->event_handler = ngx_http_block_read; + ngx_http_handler(r); + return; + + } else if (rc != NGX_AGAIN) { + + /* there was error while a header line parsing */ + + ngx_http_header_parse_error(r, rc); + ngx_http_finalize_request(r, NGX_HTTP_BAD_REQUEST); + + return; + } + + /* NGX_AGAIN: a header line parsing is still not complete */ + + if (r->header_in->last == r->header_in->end) { + + /* if the large client headers are enabled then + we need to compact r->header_in hunk */ + + if (cscf->large_client_header) { + offset = r->header_name_start - r->header_in->start; + + if (offset == 0) { + ngx_http_header_parse_error(r, + NGX_HTTP_PARSE_TOO_LONG_HEADER); + ngx_http_finalize_request(r, NGX_HTTP_BAD_REQUEST); + return; + } + + ngx_memcpy(r->header_in->start, r->header_name_start, + r->header_in->last - r->header_name_start); + + r->header_in->last -= offset; + r->header_in->pos -= offset; + r->header_name_start = r->header_in->start; + r->header_name_end -= offset; + r->header_start -= offset; + r->header_end -= offset; + + } else { + ngx_http_header_parse_error(r, NGX_HTTP_PARSE_TOO_LONG_HEADER); + ngx_http_finalize_request(r, NGX_HTTP_BAD_REQUEST); + return; + } + } + } +} + + +static ssize_t ngx_http_read_request_header(ngx_http_request_t *r) +{ + int event; + ssize_t n; + ngx_event_t *rev; + ngx_http_core_srv_conf_t *cscf; + + rev = r->connection->read; + + n = r->header_in->last - r->header_in->pos; + + if (n > 0) { + rev->ready = 0; + return n; + } + + n = ngx_recv(r->connection, r->header_in->last, + r->header_in->end - r->header_in->last); + + if (n == NGX_AGAIN) { + if (!r->header_timeout_set) { + if (rev->timer_set) { + ngx_del_timer(rev); + } else { + rev->timer_set = 1; + } + + cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module); + + ngx_add_timer(rev, cscf->client_header_timeout); + r->header_timeout_set = 1; + } + + if (!rev->active) { + if (ngx_event_flags & NGX_HAVE_CLEAR_EVENT) { + /* kqueue */ + event = NGX_CLEAR_EVENT; + + } else { + /* select, poll, /dev/poll */ + event = NGX_LEVEL_EVENT; + } + + if (ngx_add_event(rev, NGX_READ_EVENT, event) == NGX_ERROR) { + ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR); + ngx_http_close_connection(r->connection); + return NGX_ERROR; + } + } + + return NGX_AGAIN; + } + + if (n == 0) { + ngx_log_error(NGX_LOG_INFO, r->connection->log, 0, + "client closed prematurely connection"); + } + + if (n == 0 || n == NGX_ERROR) { + ngx_http_close_request(r, NGX_HTTP_BAD_REQUEST); + ngx_http_close_connection(r->connection); + return NGX_ERROR; + } + + r->header_in->last += n; + + return n; +} + + +void ngx_http_finalize_request(ngx_http_request_t *r, int error) +{ + int rc; + ngx_event_t *rev, *wev; + + if (r->main) { + return; + } + + rc = error; + + if (rc >= NGX_HTTP_SPECIAL_RESPONSE) { + + rev = r->connection->read; + if (rev->timer_set) { + ngx_del_timer(rev); + rev->timer_set = 0; + } + + wev = r->connection->write; + if (wev->timer_set) { + ngx_del_timer(wev); + wev->timer_set = 0; + } + + rc = ngx_http_special_response_handler(r, rc); + + if (rc == NGX_AGAIN) { + return; + } + + if (rc == NGX_ERROR) { + ngx_http_close_request(r, 0); + ngx_http_close_connection(r->connection); + return; + } + +#if 1 + return; +#endif + + } else if (rc == NGX_ERROR) { + r->keepalive = 0; + r->lingering_close = 0; + + } else { + if (ngx_http_send_last(r) == NGX_ERROR) { + ngx_http_close_request(r, 0); + ngx_http_close_connection(r->connection); + return; + } + + if (rc == NGX_AGAIN) { + ngx_http_set_write_handler(r); + return; + } + } + + rev = r->connection->read; + if (rev->timer_set) { + ngx_del_timer(rev); + rev->timer_set = 0; + } + + wev = r->connection->write; + if (wev->timer_set) { + ngx_del_timer(wev); + wev->timer_set = 0; + } + + if (r->keepalive != 0) { + ngx_http_set_keepalive(r); + + } else if (r->lingering_close) { + ngx_http_set_lingering_close(r); + + } else { + ngx_http_close_request(r, 0); + ngx_http_close_connection(r->connection); + } + + return; +} + + +void ngx_http_set_write_handler(ngx_http_request_t *r) +{ + int event; + ngx_event_t *wev; + ngx_http_core_loc_conf_t *clcf; + + wev = r->connection->write; + wev->event_handler = ngx_http_writer; + + if (wev->delayed && wev->ready) { + return; + } + + clcf = ngx_http_get_module_loc_conf(r->main ? r->main : r, + ngx_http_core_module); + ngx_add_timer(wev, clcf->send_timeout); + wev->timer_set = 1; + + if (ngx_event_flags & (NGX_HAVE_AIO_EVENT|NGX_HAVE_EDGE_EVENT)) { + /* aio, iocp, epoll */ + return; + } + +#if (HAVE_LOWAT_EVENT) /* kqueue's NOTE_LOWAT */ + + if (ngx_event_flags & NGX_HAVE_LOWAT_EVENT) { + wev->lowat = clcf->send_lowat; + } + +#endif + + if (ngx_event_flags & NGX_HAVE_CLEAR_EVENT) { + /* kqueue */ + event = NGX_CLEAR_EVENT; + + } else { + /* select, poll, /dev/poll */ + event = NGX_LEVEL_EVENT; + } + + if (ngx_add_event(wev, NGX_WRITE_EVENT, event) == NGX_ERROR) { + ngx_http_close_request(r, 0); + ngx_http_close_connection(r->connection); + } + + return; +} + + +static void ngx_http_writer(ngx_event_t *wev) +{ + int rc; + ngx_event_t *rev; + ngx_connection_t *c; + ngx_http_request_t *r; + ngx_http_core_loc_conf_t *clcf; + + c = wev->data; + r = c->data; + + rc = ngx_http_output_filter(r, NULL); + + ngx_log_debug(c->log, "writer output filter: %d" _ rc); + + if (rc == NGX_AGAIN) { + + clcf = ngx_http_get_module_loc_conf(r->main ? r->main : r, + ngx_http_core_module); + if (wev->timer_set) { + ngx_del_timer(wev); + } else { + wev->timer_set = 1; + } + + ngx_add_timer(wev, clcf->send_timeout); + + return; + } + + if (rc == NGX_ERROR) { + ngx_http_close_request(r, 0); + ngx_http_close_connection(c); + return; + } + + /* rc == NGX_OK */ + + ngx_log_debug(c->log, "http writer done"); + + rev = r->connection->read; + if (rev->timer_set) { + ngx_del_timer(rev); + rev->timer_set = 0; + } + + if (wev->timer_set) { + ngx_del_timer(wev); + wev->timer_set = 0; + } + + if (r->keepalive != 0) { + ngx_http_set_keepalive(r); + + } else if (r->lingering_close) { + ngx_http_set_lingering_close(r); + + } else { + ngx_http_close_request(r, 0); + ngx_http_close_connection(r->connection); + } + + return; +} + + +static void ngx_http_block_read(ngx_event_t *rev) +{ + ngx_connection_t *c; + ngx_http_request_t *r; + + ngx_log_debug(rev->log, "http read blocked"); + + /* aio does not call this handler */ + + if (ngx_event_flags & NGX_USE_LEVEL_EVENT) { + + /* select, poll, /dev/poll */ + + rev->blocked = 1; + + if (ngx_del_event(rev, NGX_READ_EVENT, 0) == NGX_ERROR) { + c = (ngx_connection_t *) rev->data; + r = (ngx_http_request_t *) c->data; + ngx_http_close_request(r, 0); + ngx_http_close_connection(c); + } + } + + /* kqueue, epoll */ + + return; +} + + +int ngx_http_discard_body(ngx_http_request_t *r) +{ + ssize_t size; + ngx_event_t *rev; + + rev = r->connection->read; + + ngx_log_debug(rev->log, "set discard body"); + + if (rev->timer_set) { + ngx_del_timer(rev); + rev->timer_set = 0; + } + + if (r->headers_in.content_length_n > 0) { + + size = r->header_in->last - r->header_in->pos; + + if (size) { + if (r->headers_in.content_length_n > size) { + r->headers_in.content_length_n -= size; + + } else { + r->header_in->pos += r->headers_in.content_length_n; + r->headers_in.content_length_n = 0; + return NGX_OK; + } + } + + rev->event_handler = ngx_http_read_discarded_body_event; + + if (rev->blocked) { + if (ngx_event_flags & NGX_USE_LEVEL_EVENT) { + if (ngx_add_event(rev, NGX_READ_EVENT, NGX_LEVEL_EVENT) + == NGX_ERROR) { + return NGX_HTTP_INTERNAL_SERVER_ERROR; + } + } + + rev->blocked = 0; + return ngx_http_read_discarded_body(r); + } + } + + return NGX_OK; +} + + +static void ngx_http_read_discarded_body_event(ngx_event_t *rev) +{ + int rc; + ngx_connection_t *c; + ngx_http_request_t *r; + + c = rev->data; + r = c->data; + + rc = ngx_http_read_discarded_body(r); + + if (rc != NGX_OK) { + ngx_http_close_request(r, rc); + ngx_http_close_connection(c); + } + + return; +} + + +static int ngx_http_read_discarded_body(ngx_http_request_t *r) +{ + ssize_t size, n; + ngx_http_core_loc_conf_t *clcf; + + ngx_log_debug(r->connection->log, "http read discarded body"); + + clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module); + + if (r->discarded_buffer == NULL) { + r->discarded_buffer = ngx_palloc(r->pool, clcf->discarded_buffer_size); + if (r->discarded_buffer == NULL) { + return NGX_HTTP_INTERNAL_SERVER_ERROR; + } + } + + size = r->headers_in.content_length_n; + if (size > clcf->discarded_buffer_size) { + size = clcf->discarded_buffer_size; + } + + n = ngx_recv(r->connection, r->discarded_buffer, size); + if (n == NGX_ERROR) { + return NGX_HTTP_BAD_REQUEST; + } + + if (n == NGX_AGAIN) { + return NGX_OK; + } + + r->headers_in.content_length_n -= n; + + return NGX_OK; +} + + +static void ngx_http_set_keepalive(ngx_http_request_t *r) +{ + int len, blocked; + ngx_hunk_t *h; + ngx_event_t *rev, *wev; + ngx_connection_t *c; + ngx_http_log_ctx_t *ctx; + ngx_http_core_srv_conf_t *cscf; + ngx_http_core_loc_conf_t *clcf; + + c = r->connection; + rev = c->read; + + ngx_log_debug(c->log, "set http keepalive handler"); + + ctx = (ngx_http_log_ctx_t *) c->log->data; + ctx->action = "closing request"; + ngx_http_close_request(r, 0); + + if (rev->timer_set) { + ngx_del_timer(rev); + } else { + rev->timer_set = 1; + } + + clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module); + + ngx_add_timer(rev, clcf->keepalive_timeout); + + if (rev->blocked && (ngx_event_flags & NGX_USE_LEVEL_EVENT)) { + if (ngx_add_event(rev, NGX_READ_EVENT, NGX_LEVEL_EVENT) == NGX_ERROR) { + ngx_http_close_connection(c); + return; + } + + blocked = 1; + rev->blocked = 0; + + } else { + blocked = 0; + } + + h = c->buffer; + + /* pipelined request */ + if (h->pos < h->last) { + + /* We do not know here whether a pipelined request is complete + so if the large client headers are not enabled + we need to copy the data to the start of c->buffer. + This copy should be rare because clients that support + pipelined requests (Mozilla 1.x, Opera 6.x) are still rare */ + + cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module); + + if (!cscf->large_client_header) { + len = h->last - h->pos; + ngx_memcpy(h->start, h->pos, len); + h->pos = h->start; + h->last = h->start + len; + } + + ngx_log_debug(c->log, "pipelined request"); + + c->pipeline = 1; + ctx->action = "reading client pipelined request line"; + ngx_http_init_request(rev); + return; + } + + c->pipeline = 0; + + h->pos = h->last = h->start; + rev->event_handler = ngx_http_keepalive_handler; + wev = c->write; + + if (wev->active) { + if (ngx_event_flags & NGX_USE_LEVEL_EVENT) { + if (ngx_del_event(wev, NGX_WRITE_EVENT, 0) == NGX_ERROR) { + ngx_http_close_connection(c); + return; + } + + } else if ((ngx_event_flags & NGX_HAVE_AIO_EVENT) == 0) { + wev->event_handler = ngx_http_empty_handler; + } + } + + ctx->action = "keepalive"; + + if (c->tcp_nopush) { + if (ngx_tcp_push(c->fd) == NGX_ERROR) { + ngx_log_error(NGX_LOG_CRIT, c->log, ngx_socket_errno, + ngx_tcp_push_n " failed"); + ngx_http_close_connection(c); + return; + } + c->tcp_nopush = 0; + } + + if ((ngx_event_flags & NGX_HAVE_AIO_EVENT) || blocked) { + ngx_http_keepalive_handler(rev); + } +} + + +static void ngx_http_keepalive_handler(ngx_event_t *rev) +{ + ssize_t n; + ngx_connection_t *c; + ngx_http_log_ctx_t *lctx; + + c = (ngx_connection_t *) rev->data; + + ngx_log_debug(c->log, "http keepalive handler"); + + if (rev->timedout) { + ngx_http_close_connection(c); + return; + } + + /* MSIE closes a keepalive connection with RST flag + so we ignore ECONNRESET here */ + + rev->ignore_econnreset = 1; + ngx_set_socket_errno(0); + n = ngx_recv(c, c->buffer->last, c->buffer->end - c->buffer->last); + rev->ignore_econnreset = 0; + + if (n == NGX_AGAIN) { + return; + } + + if (n == NGX_ERROR) { + ngx_http_close_connection(c); + return; + } + + lctx = (ngx_http_log_ctx_t *) rev->log->data; + rev->log->handler = NULL; + + if (n == 0) { + ngx_log_error(NGX_LOG_INFO, c->log, ngx_socket_errno, + "client %s closed keepalive connection", lctx->client); + ngx_http_close_connection(c); + return; + } + + c->buffer->last += n; + rev->log->handler = ngx_http_log_error; + lctx->action = "reading client request line"; + + ngx_http_init_request(rev); +} + + +static void ngx_http_set_lingering_close(ngx_http_request_t *r) +{ + ngx_event_t *rev; + ngx_connection_t *c; + 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); + + r->lingering_time = ngx_time() + clcf->lingering_time / 1000; + rev->event_handler = ngx_http_lingering_close_handler; + + if (rev->timer_set) { + ngx_del_timer(rev); + } else { + rev->timer_set = 1; + } + + ngx_add_timer(rev, clcf->lingering_timeout); + + if (rev->blocked && (ngx_event_flags & NGX_USE_LEVEL_EVENT)) { + if (ngx_add_event(rev, NGX_READ_EVENT, NGX_LEVEL_EVENT) == NGX_ERROR) { + ngx_http_close_request(r, 0); + ngx_http_close_connection(c); + return; + } + rev->blocked = 0; + } + + if (c->write->active) { + if (ngx_event_flags & NGX_USE_LEVEL_EVENT) { + if (ngx_del_event(c->write, NGX_WRITE_EVENT, 0) == NGX_ERROR) { + ngx_http_close_request(r, 0); + ngx_http_close_connection(c); + return; + } + + } else if ((ngx_event_flags & NGX_HAVE_AIO_EVENT) == 0) { + c->write->event_handler = ngx_http_empty_handler; + } + } + + if (ngx_shutdown_socket(c->fd, NGX_WRITE_SHUTDOWN) == -1) { + ngx_log_error(NGX_LOG_CRIT, c->log, ngx_socket_errno, + ngx_shutdown_socket_n " failed"); + ngx_http_close_request(r, 0); + ngx_http_close_connection(c); + return; + } + + if (rev->ready || (ngx_event_flags & NGX_HAVE_AIO_EVENT)) { + 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; + + c = rev->data; + r = c->data; + + ngx_log_debug(c->log, "http lingering close handler"); + + if (rev->timedout) { + ngx_http_close_request(r, 0); + ngx_http_close_connection(c); + return; + } + + timer = r->lingering_time - ngx_time(); + if (timer <= 0) { + ngx_http_close_request(r, 0); + ngx_http_close_connection(c); + return; + } + + clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module); + + if (r->discarded_buffer == NULL) { + + /* TODO: r->header_in->start (if large headers are enabled) + or the end of parsed header (otherwise) + instead of r->header_in->last */ + + if (r->header_in->end - r->header_in->last + >= clcf->discarded_buffer_size) { + r->discarded_buffer = r->header_in->last; + + } else { + r->discarded_buffer = ngx_palloc(c->pool, + clcf->discarded_buffer_size); + if (r->discarded_buffer) { + ngx_http_close_request(r, 0); + ngx_http_close_connection(c); + return; + } + } + } + + do { + n = ngx_recv(c, r->discarded_buffer, clcf->discarded_buffer_size); + + ngx_log_debug(c->log, "lingering read: %d" _ n); + + if (n == NGX_ERROR || n == 0) { + ngx_http_close_request(r, 0); + ngx_http_close_connection(c); + return; + } + + } while (rev->ready); + + timer *= 1000; + if (timer > clcf->lingering_timeout) { + timer = clcf->lingering_timeout; + } + + if (rev->timer_set) { + ngx_del_timer(rev); + } else { + rev->timer_set = 1; + } + ngx_add_timer(rev, timer); + + return; +} + + +static void ngx_http_empty_handler(ngx_event_t *wev) +{ + ngx_log_debug(wev->log, "http empty handler"); + + return; +} + + +int ngx_http_send_last(ngx_http_request_t *r) +{ + ngx_hunk_t *h; + + ngx_test_null(h, ngx_calloc_hunk(r->pool), NGX_ERROR); + h->type = NGX_HUNK_LAST; + + return ngx_http_output_filter(r, h); +} + + +void ngx_http_close_request(ngx_http_request_t *r, int error) +{ + ngx_http_log_ctx_t *ctx; + + ngx_log_debug(r->connection->log, "close http request"); + + if (r->pool == NULL) { + ngx_log_error(NGX_LOG_ALERT, r->connection->log, 0, + "http request already closed"); + return; + } + + if (error) { + r->headers_out.status = error; + } + + ngx_http_log_handler(r); + + if (r->file.fd != NGX_INVALID_FILE) { + if (ngx_close_file(r->file.fd) == NGX_FILE_ERROR) { + ngx_log_error(NGX_LOG_ALERT, r->connection->log, ngx_errno, + ngx_close_file_n " \"%s\" failed", r->file.name.data); + } + } + + /* ctx->url was allocated from r->pool */ + ctx = (ngx_http_log_ctx_t *) r->connection->log->data; + ctx->url = NULL; + + ngx_destroy_pool(r->pool); +} + + +void ngx_http_close_connection(ngx_connection_t *c) +{ + ngx_log_debug(c->log, "close connection: %d" _ c->fd); + + if (c->pool == NULL) { + ngx_log_error(NGX_LOG_ALERT, c->log, 0, "connection already closed"); + return; + } + + if (c->read->timer_set) { + ngx_del_timer(c->read); + c->read->timer_set = 0; + } + + if (c->write->timer_set) { + ngx_del_timer(c->write); + c->write->timer_set = 0; + } + + if (ngx_del_conn) { + ngx_del_conn(c); + + } else { + if (c->read->active) { + ngx_del_event(c->read, NGX_READ_EVENT, NGX_CLOSE_EVENT); + } + + if (c->write->active) { + ngx_del_event(c->write, NGX_WRITE_EVENT, NGX_CLOSE_EVENT); + } + } + + if (ngx_close_socket(c->fd) == -1) { + ngx_log_error(NGX_LOG_ALERT, c->log, ngx_socket_errno, + ngx_close_socket_n " failed"); + } + + c->fd = -1; + + ngx_destroy_pool(c->pool); +} + + +static void ngx_http_header_parse_error(ngx_http_request_t *r, int parse_err) +{ + ngx_http_log_ctx_t *ctx; + + ctx = r->connection->log->data; + r->connection->log->handler = NULL; + + if (ctx->url) { + ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, + header_errors[parse_err - NGX_HTTP_PARSE_INVALID_METHOD], + ctx->client, ctx->url); + + } else { + ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, + header_errors[parse_err - NGX_HTTP_PARSE_INVALID_METHOD], + ctx->client); + } + + r->connection->log->handler = ngx_http_log_error; +} + + +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->action && ctx->url) { + return ngx_snprintf(buf, len, " while %s, client: %s, URL: %s", + ctx->action, ctx->client, ctx->url); + + } else if (ctx->action == NULL && ctx->url) { + return ngx_snprintf(buf, len, ", client: %s, URL: %s", + ctx->client, ctx->url); + + } else { + return ngx_snprintf(buf, len, " while %s, client: %s", + ctx->action, ctx->client); + } +}
--- a/src/http/ngx_http_special_response.c Wed Oct 08 15:32:54 2003 +0000 +++ b/src/http/ngx_http_special_response.c Thu Oct 09 07:00:45 2003 +0000 @@ -199,15 +199,19 @@ } rc = ngx_http_send_header(r); + if (rc == NGX_ERROR) { return NGX_ERROR; } if (r->header_only) { + ngx_http_finalize_request(r, rc); +#if 0 if (rc == NGX_AGAIN) { ngx_http_set_write_handler(r); return NGX_AGAIN; } +#endif return NGX_OK; } @@ -248,12 +252,16 @@ rc = ngx_http_output_filter(r, h); + ngx_http_finalize_request(r, rc); + +#if 0 if (r->main == NULL) { if (rc == NGX_AGAIN) { ngx_http_set_write_handler(r); return NGX_AGAIN; } } +#endif return NGX_OK;
--- a/src/http/ngx_http_write_filter.c Wed Oct 08 15:32:54 2003 +0000 +++ b/src/http/ngx_http_write_filter.c Thu Oct 09 07:00:45 2003 +0000 @@ -130,14 +130,16 @@ last _ flush _ size); #endif - /* avoid the output if there is no last hunk, no flush point and - size of the hunks is smaller then "buffer_output" */ + /* + * avoid the output if there is no last hunk, no flush point and + * size of the hunks is smaller then "buffer_output" + */ if (!last && flush == 0 && size < conf->buffer_output) { return NGX_OK; } - if (r->connection->write->delayed) { + if (!r->connection->write->ready || r->connection->write->delayed) { return NGX_AGAIN; }
--- a/src/os/unix/ngx_freebsd_init.c Wed Oct 08 15:32:54 2003 +0000 +++ b/src/os/unix/ngx_freebsd_init.c Thu Oct 09 07:00:45 2003 +0000 @@ -93,26 +93,30 @@ #if (HAVE_FREEBSD_SENDFILE) - /* The determination of the sendfile() nbytes bug is complex enough. - There're two sendfile() syscalls: a new 393 has no bug while - an old 336 has the bug in some versions and has not in others. - Besides libc_r wrapper also emulates the bug in some versions. - There's no way to say exactly if a given FreeBSD version has bug. - Here is the algorithm that works at least for RELEASEs - and for syscalls only (not libc_r wrapper). */ - - /* detect the new sendfile() version available at the compile time - to allow an old binary to run correctly on an updated FreeBSD system. */ + /* + * The determination of the sendfile() nbytes bug is complex enough. + * There're two sendfile() syscalls: a new 393 has no bug while + * an old 336 has the bug in some versions and has not in others. + * Besides libc_r wrapper also emulates the bug in some versions. + * There's no way to say exactly if a given FreeBSD version has the bug. + * Here is the algorithm that works at least for RELEASEs + * and for syscalls only (not libc_r wrapper). + * + * We detect the new sendfile() version available at the compile time + * to allow an old binary to run correctly on an updated FreeBSD system. + */ #if (__FreeBSD__ == 4 && __FreeBSD_version >= 460102) \ || __FreeBSD_version == 460002 || __FreeBSD_version >= 500039 /* a new syscall without the bug */ + ngx_freebsd_sendfile_nbytes_bug = 0; #else /* an old syscall that can have the bug */ + ngx_freebsd_sendfile_nbytes_bug = 1; #endif
--- a/src/os/unix/ngx_freebsd_sendfile_chain.c Wed Oct 08 15:32:54 2003 +0000 +++ b/src/os/unix/ngx_freebsd_sendfile_chain.c Thu Oct 09 07:00:45 2003 +0000 @@ -1,23 +1,24 @@ #include <ngx_config.h> #include <ngx_core.h> +#include <ngx_event.h> #include <ngx_freebsd_init.h> /* - sendfile() often sends 4K pages over ethernet in 3 packets: 2x1460 and 1176 - or in 6 packets: 5x1460 and 892. Besides although sendfile() allows - to pass the header and the trailer it never sends the header or the trailer - with the part of the file in one packet. So we use TCP_NOPUSH (similar - to Linux's TCP_CORK) to postpone the sending - it not only sends the header - and the first part of the file in one packet but also sends 4K pages - in the full packets. - - Until FreeBSD 4.5 the turning TCP_NOPUSH off does not not flush - the pending data that less than MSS and the data sent with 5 second delay. - So we use TCP_NOPUSH on FreeBSD prior to 4.5 only if the connection - is not needed not keepalive. -*/ + * sendfile() often sends 4K pages over ethernet in 3 packets: 2x1460 and 1176 + * or in 6 packets: 5x1460 and 892. Besides although sendfile() allows + * to pass the header and the trailer it never sends the header or the trailer + * with the part of the file in one packet. So we use TCP_NOPUSH (similar + * to Linux's TCP_CORK) to postpone the sending - it not only sends the header + * and the first part of the file in one packet but also sends 4K pages + * in the full packets. + * + * Until FreeBSD 4.5 the turning TCP_NOPUSH off does not not flush + * the pending data that less than MSS and the data sent with 5 second delay. + * So we use TCP_NOPUSH on FreeBSD prior to 4.5 only if the connection + * is not needed to be keepalive. + */ ngx_chain_t *ngx_freebsd_sendfile_chain(ngx_connection_t *c, ngx_chain_t *in) @@ -47,12 +48,23 @@ NGX_CHAIN_ERROR); /* create the header iovec */ - if (ngx_hunk_in_memory_only(ce->hunk)) { + +#if 0 + if (ngx_hunk_in_memory_only(ce->hunk) || ngx_hunk_special(ce->hunk)) { +#endif prev = NULL; iov = NULL; /* create the iovec and coalesce the neighbouring chain entries */ - while (ce && ngx_hunk_in_memory_only(ce->hunk)) { + + for ( /* void */; ce; ce = ce->next) { + if (ngx_hunk_special(ce->hunk)) { + continue; + } + + if (!ngx_hunk_in_memory_only(ce->hunk)) { + break; + } if (prev == ce->hunk->pos) { iov->iov_len += ce->hunk->last - ce->hunk->pos; @@ -67,24 +79,39 @@ } hsize += ce->hunk->last - ce->hunk->pos; - - ce = ce->next; } +#if 0 } +#endif /* TODO: coalesce the neighbouring file hunks */ + if (ce && (ce->hunk->type & NGX_HUNK_FILE)) { file = ce->hunk; ce = ce->next; } /* create the trailer iovec */ - if (ce && ngx_hunk_in_memory_only(ce->hunk)) { + +#if 0 + if (ce + && (ngx_hunk_in_memory_only(ce->hunk) + || ngx_hunk_special(ce->hunk))) + { +#endif prev = NULL; iov = NULL; /* create the iovec and coalesce the neighbouring chain entries */ - while (ce && ngx_hunk_in_memory_only(ce->hunk)) { + + for ( /* void */; ce; ce = ce->next) { + if (ngx_hunk_special(ce->hunk)) { + continue; + } + + if (!ngx_hunk_in_memory_only(ce->hunk)) { + break; + } if (prev == ce->hunk->pos) { iov->iov_len += ce->hunk->last - ce->hunk->pos; @@ -97,10 +124,10 @@ iov->iov_len = ce->hunk->last - ce->hunk->pos; prev = ce->hunk->last; } - - ce = ce->next; } +#if 0 } +#endif tail = ce; @@ -155,28 +182,36 @@ #endif } else { - rc = writev(c->fd, (struct iovec *) header.elts, header.nelts); + if (hsize) { + rc = writev(c->fd, (struct iovec *) header.elts, header.nelts); - if (rc == -1) { - err = ngx_errno; - if (err == NGX_EAGAIN) { - ngx_log_error(NGX_LOG_INFO, c->log, err, "writev() EAGAIN"); + if (rc == -1) { + err = ngx_errno; + if (err == NGX_EAGAIN) { + ngx_log_error(NGX_LOG_INFO, c->log, err, + "writev() EAGAIN"); - } else if (err == NGX_EINTR) { - eintr = 1; - ngx_log_error(NGX_LOG_INFO, c->log, err, "writev() EINTR"); + } else if (err == NGX_EINTR) { + eintr = 1; + ngx_log_error(NGX_LOG_INFO, c->log, err, + "writev() EINTR"); - } else { - ngx_log_error(NGX_LOG_CRIT, c->log, err, "writev() failed"); - return NGX_CHAIN_ERROR; + } else { + ngx_log_error(NGX_LOG_CRIT, c->log, err, + "writev() failed"); + return NGX_CHAIN_ERROR; + } } - } - sent = rc > 0 ? rc : 0; + sent = rc > 0 ? rc : 0; #if (NGX_DEBUG_WRITE_CHAIN) - ngx_log_debug(c->log, "writev: %qd" _ sent); + ngx_log_debug(c->log, "writev: %qd" _ sent); #endif + + } else { + sent = 0; + } } c->sent += sent; @@ -221,5 +256,9 @@ } while ((tail && tail == ce) || eintr); + if (ce) { + c->write->ready = 0; + } + return ce; }