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-rw-r--r--src/http/ngx_http_event.c1502
1 files changed, 0 insertions, 1502 deletions
diff --git a/src/http/ngx_http_event.c b/src/http/ngx_http_event.c
deleted file mode 100644
index ea8120764..000000000
--- a/src/http/ngx_http_event.c
+++ /dev/null
@@ -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);
- }
-}
generated by cgit v1.2.3 (git 2.25.1) at 2025-07-19 15:19:25 +0000