mirror of
https://github.com/nginx/nginx.git
synced 2024-12-16 14:19:00 +08:00
1534 lines
42 KiB
C
1534 lines
42 KiB
C
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#include <ngx_config.h>
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#include <ngx_core.h>
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#include <ngx_event.h>
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#include <ngx_http.h>
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static void ngx_http_init_request(ngx_event_t *ev);
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static void ngx_http_process_request_line(ngx_event_t *rev);
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static void ngx_http_process_request_headers(ngx_event_t *rev);
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static ssize_t ngx_http_read_request_header(ngx_http_request_t *r);
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static int ngx_http_process_request_header(ngx_http_request_t *r);
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static void ngx_http_set_write_handler(ngx_http_request_t *r);
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static void ngx_http_block_read(ngx_event_t *ev);
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static void ngx_http_read_discarded_body_event(ngx_event_t *rev);
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static int ngx_http_read_discarded_body(ngx_http_request_t *r);
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static void ngx_http_set_keepalive(ngx_http_request_t *r);
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static void ngx_http_keepalive_handler(ngx_event_t *ev);
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static void ngx_http_set_lingering_close(ngx_http_request_t *r);
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static void ngx_http_lingering_close_handler(ngx_event_t *ev);
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static void ngx_http_client_error(ngx_http_request_t *r,
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int client_error, int error);
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static size_t ngx_http_log_error(void *data, char *buf, size_t len);
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/* NGX_HTTP_PARSE_... errors */
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static char *client_header_errors[] = {
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"client %s sent invalid method",
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"client %s sent invalid request",
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"client %s sent too long URI",
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"client %s sent invalid method in HTTP/0.9 request",
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"client %s sent invalid header, URL: %s",
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"client %s sent too long header line, URL: %s",
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"client %s sent HTTP/1.1 request without \"Host\" header, URL: %s",
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"client %s sent invalid \"Content-Length\" header, URL: %s"
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};
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static void ngx_http_dummy(ngx_event_t *wev)
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{
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return;
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}
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void ngx_http_init_connection(ngx_connection_t *c)
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{
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ngx_event_t *rev;
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ngx_http_log_ctx_t *ctx;
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c->addr_text.data = ngx_palloc(c->pool, c->listening->addr_text_max_len);
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if (c->addr_text.data == NULL) {
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ngx_http_close_connection(c);
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return;
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}
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c->addr_text.len = ngx_sock_ntop(c->listening->family, c->sockaddr,
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c->addr_text.data,
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c->listening->addr_text_max_len);
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if (c->addr_text.len == 0) {
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ngx_http_close_connection(c);
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return;
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}
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if (!(ctx = ngx_pcalloc(c->pool, sizeof(ngx_http_log_ctx_t)))) {
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ngx_http_close_connection(c);
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return;
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}
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ctx->connection = c->number;
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ctx->client = c->addr_text.data;
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ctx->action = "reading client request line";
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c->log->data = ctx;
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c->log->handler = ngx_http_log_error;
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rev = c->read;
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rev->event_handler = ngx_http_init_request;
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if (rev->ready) {
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/* deferred accept, aio, iocp, epoll */
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ngx_http_init_request(rev);
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return;
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}
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ngx_add_timer(rev, c->listening->post_accept_timeout);
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if (ngx_handle_read_event(rev, 0) == NGX_ERROR) {
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ngx_http_close_connection(c);
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return;
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}
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#if 0
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/* TODO: learn SO_SNDBUF (to use in zerocopy) via kqueue's EV_CLEAR event */
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c->write->ready = 0;
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c->write->event_handler = ngx_http_dummy;
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if (ngx_handle_write_event(c->write, 0) == NGX_ERROR) {
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ngx_http_close_connection(c);
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return;
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}
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#endif
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}
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static void ngx_http_init_request(ngx_event_t *rev)
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{
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int i;
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socklen_t len;
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struct sockaddr_in addr_in;
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ngx_connection_t *c;
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ngx_http_request_t *r;
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ngx_http_in_port_t *in_port;
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ngx_http_in_addr_t *in_addr;
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ngx_http_server_name_t *server_name;
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ngx_http_core_srv_conf_t *cscf;
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ngx_http_core_loc_conf_t *clcf;
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c = rev->data;
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if (rev->timedout) {
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ngx_log_error(NGX_LOG_INFO, c->log, NGX_ETIMEDOUT, "client timed out");
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ngx_http_close_connection(c);
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return;
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}
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if (c->data) {
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r = c->data;
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ngx_memzero(r, sizeof(ngx_http_request_t));
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} else {
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if (!(r = ngx_pcalloc(c->pool, sizeof(ngx_http_request_t)))) {
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ngx_http_close_connection(c);
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return;
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}
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}
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/* find the server configuration for the address:port */
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/* AF_INET only */
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in_port = c->servers;
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in_addr = in_port->addrs.elts;
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ngx_log_debug(rev->log, "IN: %08x" _ in_port);
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r->port = in_port->port;
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r->port_name = &in_port->port_name;
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i = 0;
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if (in_port->addrs.nelts > 1) {
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/*
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* There're the several addresses on this port and one of them
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* is "*:port" so getsockname() is needed to determine
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* the server address.
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* AcceptEx() already gave this address.
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*/
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#if (WIN32)
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if (c->local_sockaddr) {
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r->in_addr =
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((struct sockaddr_in *) c->local_sockaddr)->sin_addr.s_addr;
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} else {
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#endif
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len = sizeof(struct sockaddr_in);
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if (getsockname(c->fd, (struct sockaddr *) &addr_in, &len) == -1) {
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ngx_log_error(NGX_LOG_CRIT, rev->log, ngx_socket_errno,
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"getsockname() failed");
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ngx_http_close_connection(c);
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return;
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}
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#if (WIN32)
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}
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#endif
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r->in_addr = addr_in.sin_addr.s_addr;
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/* the last in_port->addrs address is "*" */
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for ( /* void */ ; i < in_port->addrs.nelts - 1; i++) {
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if (in_addr[i].addr == r->in_addr) {
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break;
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}
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}
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} else {
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r->in_addr = in_addr[0].addr;
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}
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r->virtual_names = &in_addr[i].names;
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/* the default server configuration for the address:port */
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cscf = in_addr[i].core_srv_conf;
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r->main_conf = cscf->ctx->main_conf;
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r->srv_conf = cscf->ctx->srv_conf;
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r->loc_conf = cscf->ctx->loc_conf;
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server_name = cscf->server_names.elts;
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r->server_name = &server_name->name;
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clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
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c->log->file = clcf->err_log->file;
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c->log->log_level = clcf->err_log->log_level;
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if (c->buffer == NULL) {
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c->buffer =
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ngx_create_temp_hunk(c->pool, cscf->client_header_buffer_size);
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if (c->buffer == NULL) {
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ngx_http_close_connection(c);
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return;
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}
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}
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if (!(r->pool = ngx_create_pool(cscf->request_pool_size, c->log))) {
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ngx_http_close_connection(c);
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return;
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}
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r->cleanup.elts = ngx_palloc(r->pool, 5 * sizeof(ngx_http_cleanup_t));
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if (r->cleanup.elts == NULL) {
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ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
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ngx_http_close_connection(c);
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return;
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}
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/*
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* set by ngx_pcalloc():
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*
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* r->cleanup.nelts = 0;
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*/
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r->cleanup.nalloc = 5;
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r->cleanup.size = sizeof(ngx_http_cleanup_t);
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r->cleanup.pool = r->pool;
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/* TODO: ngx_init_table */
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if (!(r->headers_out.headers = ngx_create_table(r->pool, 20))) {
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ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
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ngx_http_close_connection(c);
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return;
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}
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r->ctx = ngx_pcalloc(r->pool, sizeof(void *) * ngx_http_max_module);
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if (r->ctx == NULL) {
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ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
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ngx_http_close_connection(c);
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return;
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}
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c->sent = 0;
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c->data = r;
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r->connection = c;
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r->pipeline = c->pipeline;
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r->header_in = c->buffer;
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r->file.fd = NGX_INVALID_FILE;
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r->headers_in.content_length_n = -1;
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r->headers_in.keep_alive_n = -1;
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r->headers_out.content_length_n = -1;
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r->headers_out.last_modified_time = -1;
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rev->event_handler = ngx_http_process_request_line;
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ngx_http_process_request_line(rev);
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}
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static void ngx_http_process_request_line(ngx_event_t *rev)
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{
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int rc, offset;
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ssize_t n;
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ngx_connection_t *c;
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ngx_http_request_t *r;
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ngx_http_log_ctx_t *ctx;
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ngx_http_core_srv_conf_t *cscf;
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c = rev->data;
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r = c->data;
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ngx_log_debug(rev->log, "http process request line");
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if (rev->timedout) {
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ngx_http_client_error(r, 0, NGX_HTTP_REQUEST_TIME_OUT);
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return;
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}
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n = ngx_http_read_request_header(r);
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if (n == NGX_AGAIN || n == NGX_ERROR) {
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return;
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}
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rc = ngx_http_parse_request_line(r);
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if (rc == NGX_OK) {
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/* the request line has been parsed successfully */
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/* TODO: we need to handle such URIs */
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if (r->unusual_uri) {
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r->request_line.len = r->request_end - r->request_start;
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r->request_line.data = r->request_start;
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r->request_line.data[r->request_line.len] = '\0';
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ngx_http_client_error(r, NGX_HTTP_PARSE_INVALID_REQUEST,
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NGX_HTTP_BAD_REQUEST);
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return;
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}
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cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
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if (r->http_version >= NGX_HTTP_VERSION_10
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&& cscf->large_client_header == 0
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&& r->header_in->pos == r->header_in->end)
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{
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/* no space for "\r\n" at the end of the header */
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ngx_http_client_error(r, NGX_HTTP_PARSE_TOO_LONG_URI,
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NGX_HTTP_REQUEST_URI_TOO_LARGE);
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return;
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}
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/* copy unparsed URI */
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r->unparsed_uri.len = r->uri_end - r->uri_start;
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r->unparsed_uri.data = ngx_palloc(r->pool, r->unparsed_uri.len + 1);
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if (r->unparsed_uri.data == NULL) {
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ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
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ngx_http_close_connection(c);
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return;
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}
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ngx_cpystrn(r->unparsed_uri.data, r->uri_start,
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r->unparsed_uri.len + 1);
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/* copy URI */
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if (r->args_start) {
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r->uri.len = r->args_start - 1 - r->uri_start;
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} else {
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r->uri.len = r->uri_end - r->uri_start;
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}
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if (!(r->uri.data = ngx_palloc(r->pool, r->uri.len + 1))) {
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ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
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ngx_http_close_connection(c);
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return;
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}
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if (r->complex_uri) {
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rc = ngx_http_parse_complex_uri(r);
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} else {
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ngx_cpystrn(r->uri.data, r->uri_start, r->uri.len + 1);
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}
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r->request_line.len = r->request_end - r->request_start;
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if (cscf->large_client_header) {
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/*
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* if the large client headers are enabled then
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* we need to copy a request line
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*/
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r->request_line.data = ngx_palloc(r->pool, r->request_line.len + 1);
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if (r->request_line.data == NULL) {
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ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
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ngx_http_close_connection(c);
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return;
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}
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ngx_cpystrn(r->request_line.data, r->request_start,
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r->request_line.len + 1);
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} else {
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r->request_line.data = r->request_start;
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r->request_line.data[r->request_line.len] = '\0';
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}
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if (rc != NGX_OK) {
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/*
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* we check ngx_http_parse_complex_uri() result here to log
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* the request line
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*/
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ngx_http_client_error(r, rc, NGX_HTTP_BAD_REQUEST);
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return;
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}
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if (r->uri_ext) {
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/* copy URI extention */
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if (r->args_start) {
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r->exten.len = r->args_start - 1 - r->uri_ext;
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} else {
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r->exten.len = r->uri_end - r->uri_ext;
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}
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if (!(r->exten.data = ngx_palloc(r->pool, r->exten.len + 1))) {
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ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
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ngx_http_close_connection(c);
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return;
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}
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ngx_cpystrn(r->exten.data, r->uri_ext, r->exten.len + 1);
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}
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if (r->args_start && r->uri_end > r->args_start) {
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/* copy URI arguments */
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r->args.len = r->uri_end - r->args_start;
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if (!(r->args.data = ngx_palloc(r->pool, r->args.len + 1))) {
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ngx_http_close_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
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ngx_http_close_connection(c);
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return;
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}
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ngx_cpystrn(r->args.data, r->args_start, r->args.len + 1);
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}
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#if 1 /* DEBUG */
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if (r->exten.data == NULL) { r->exten.data = ""; }
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if (r->args.data == NULL) { r->args.data = ""; }
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ngx_log_debug(c->log, "HTTP: %d, %d, '%s', '%s', '%s'" _
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r->method _ r->http_version _
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r->uri.data _ r->exten.data _ r->args.data);
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if (r->exten.data[0] == '\0') { r->exten.data = NULL; }
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if (r->args.data[0] == '\0') { r->args.data = NULL; }
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#endif
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if (r->http_version < NGX_HTTP_VERSION_10) {
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rev->event_handler = ngx_http_block_read;
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ngx_http_handler(r);
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return;
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}
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ctx = c->log->data;
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ctx->action = "reading client request headers";
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ctx->url = r->unparsed_uri.data;
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/* TODO: ngx_init_table */
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r->headers_in.headers = ngx_create_table(r->pool, 20);
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if (cscf->large_client_header
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&& r->header_in->pos == r->header_in->last)
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{
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r->header_in->pos = r->header_in->last = r->header_in->start;
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}
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rev->event_handler = ngx_http_process_request_headers;
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ngx_http_process_request_headers(rev);
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return;
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} else if (rc != NGX_AGAIN) {
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/* there was error while a request line parsing */
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ngx_http_client_error(r, rc, NGX_HTTP_BAD_REQUEST);
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return;
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}
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/* NGX_AGAIN: a request line parsing is still not complete */
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if (r->header_in->last == r->header_in->end) {
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/*
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* If it's a pipelined request and a request line is not complete
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* then we have to copy it to the start of the r->header_in hunk.
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* We have to copy it here only if the large client headers
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* are enabled otherwise a request line had been already copied
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* to the start of the r->header_in hunk in ngx_http_set_keepalive().
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*/
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cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
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if (cscf->large_client_header) {
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offset = r->request_start - r->header_in->start;
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if (offset == 0) {
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ngx_http_client_error(r, NGX_HTTP_PARSE_TOO_LONG_URI,
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NGX_HTTP_REQUEST_URI_TOO_LARGE);
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|
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_client_error(r, NGX_HTTP_PARSE_TOO_LONG_URI,
|
|
NGX_HTTP_REQUEST_URI_TOO_LARGE);
|
|
}
|
|
}
|
|
|
|
return;
|
|
}
|
|
|
|
|
|
static void ngx_http_process_request_headers(ngx_event_t *rev)
|
|
{
|
|
int rc, i, offset;
|
|
ssize_t n;
|
|
ngx_table_elt_t *h;
|
|
ngx_connection_t *c;
|
|
ngx_http_request_t *r;
|
|
ngx_http_core_srv_conf_t *cscf;
|
|
|
|
c = rev->data;
|
|
r = c->data;
|
|
|
|
ngx_log_debug(rev->log, "http process request header line");
|
|
|
|
if (rev->timedout) {
|
|
ngx_http_client_error(r, 0, NGX_HTTP_REQUEST_TIME_OUT);
|
|
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_http_add_header(&r->headers_in, ngx_http_headers_in);
|
|
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; ngx_http_headers_in[i].name.len != 0; i++) {
|
|
if (ngx_http_headers_in[i].name.len != h->key.len) {
|
|
continue;
|
|
}
|
|
|
|
if (ngx_strcasecmp(ngx_http_headers_in[i].name.data,
|
|
h->key.data) == 0)
|
|
{
|
|
*((ngx_table_elt_t **) ((char *) &r->headers_in
|
|
+ ngx_http_headers_in[i].offset)) = h;
|
|
break;
|
|
}
|
|
}
|
|
|
|
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");
|
|
|
|
rc = ngx_http_process_request_header(r);
|
|
|
|
if (rc != NGX_OK) {
|
|
ngx_http_client_error(r, rc, NGX_HTTP_BAD_REQUEST);
|
|
return;
|
|
}
|
|
|
|
if (rev->timer_set) {
|
|
ngx_del_timer(rev);
|
|
}
|
|
|
|
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_client_error(r, rc, 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_client_error(r, NGX_HTTP_PARSE_TOO_LONG_HEADER,
|
|
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_client_error(r, NGX_HTTP_PARSE_TOO_LONG_HEADER,
|
|
NGX_HTTP_BAD_REQUEST);
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
static ssize_t ngx_http_read_request_header(ngx_http_request_t *r)
|
|
{
|
|
ssize_t n;
|
|
ngx_event_t *rev;
|
|
ngx_http_core_srv_conf_t *cscf;
|
|
|
|
rev = r->connection->read;
|
|
|
|
n = r->header_in->last - r->header_in->pos;
|
|
|
|
if (n > 0) {
|
|
return n;
|
|
}
|
|
|
|
if (!rev->ready) {
|
|
return NGX_AGAIN;
|
|
}
|
|
|
|
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) {
|
|
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 (ngx_handle_read_event(rev, 0) == 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;
|
|
}
|
|
|
|
|
|
static int ngx_http_process_request_header(ngx_http_request_t *r)
|
|
{
|
|
int i;
|
|
size_t len;
|
|
ngx_http_server_name_t *name;
|
|
ngx_http_core_loc_conf_t *clcf;
|
|
|
|
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);
|
|
r->connection->log->file = clcf->err_log->file;
|
|
r->connection->log->log_level = clcf->err_log->log_level;
|
|
|
|
break;
|
|
}
|
|
}
|
|
|
|
} else {
|
|
if (r->http_version > NGX_HTTP_VERSION_10) {
|
|
return NGX_HTTP_PARSE_NO_HOST_HEADER;
|
|
}
|
|
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) {
|
|
return NGX_HTTP_PARSE_INVALID_CL_HEADER;
|
|
}
|
|
}
|
|
|
|
if (r->headers_in.connection) {
|
|
if (r->headers_in.connection->value.len == 5
|
|
&& ngx_strcasecmp(r->headers_in.connection->value.data, "close")
|
|
== 0)
|
|
{
|
|
r->headers_in.connection_type = NGX_HTTP_CONNECTION_CLOSE;
|
|
|
|
} else if (r->headers_in.connection->value.len == 10
|
|
&& ngx_strcasecmp(r->headers_in.connection->value.data,
|
|
"keep-alive") == 0)
|
|
{
|
|
r->headers_in.connection_type = NGX_HTTP_CONNECTION_KEEP_ALIVE;
|
|
|
|
if (r->headers_in.keep_alive) {
|
|
r->headers_in.keep_alive_n =
|
|
ngx_atoi(r->headers_in.keep_alive->value.data,
|
|
r->headers_in.keep_alive->value.len);
|
|
}
|
|
}
|
|
}
|
|
|
|
return NGX_OK;
|
|
}
|
|
|
|
|
|
void ngx_http_finalize_request(ngx_http_request_t *r, int rc)
|
|
{
|
|
/* r can be already destroyed when rc == NGX_DONE */
|
|
|
|
if (rc == NGX_DONE || r->main) {
|
|
return;
|
|
}
|
|
|
|
ngx_log_debug(r->connection->log, "finalize http request");
|
|
|
|
if (rc >= NGX_HTTP_SPECIAL_RESPONSE) {
|
|
|
|
if (r->connection->read->timer_set) {
|
|
ngx_del_timer(r->connection->read);
|
|
}
|
|
|
|
if (r->connection->write->timer_set) {
|
|
ngx_del_timer(r->connection->write);
|
|
}
|
|
|
|
ngx_http_finalize_request(r, ngx_http_special_response_handler(r, rc));
|
|
|
|
return;
|
|
|
|
} else if (rc == NGX_ERROR) {
|
|
ngx_http_close_request(r, 0);
|
|
ngx_http_close_connection(r->connection);
|
|
return;
|
|
|
|
} else if (rc == NGX_AGAIN) {
|
|
ngx_http_set_write_handler(r);
|
|
return;
|
|
}
|
|
|
|
if (r->connection->read->timer_set) {
|
|
ngx_del_timer(r->connection->read);
|
|
}
|
|
|
|
if (r->connection->write->timer_set) {
|
|
ngx_del_timer(r->connection->write);
|
|
}
|
|
|
|
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_set_write_handler(ngx_http_request_t *r)
|
|
{
|
|
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->available = clcf->send_lowat;
|
|
if (ngx_handle_write_event(wev, NGX_LOWAT_EVENT) == NGX_ERROR) {
|
|
ngx_http_close_request(r, 0);
|
|
ngx_http_close_connection(r->connection);
|
|
}
|
|
|
|
return;
|
|
}
|
|
|
|
|
|
void ngx_http_writer(ngx_event_t *wev)
|
|
{
|
|
int rc;
|
|
ngx_connection_t *c;
|
|
ngx_http_request_t *r;
|
|
ngx_http_core_loc_conf_t *clcf;
|
|
|
|
ngx_log_debug(wev->log, "http writer handler");
|
|
|
|
c = wev->data;
|
|
r = c->data;
|
|
|
|
#if 0 /* TODO: THINK */
|
|
if (wev->delayed) {
|
|
return;
|
|
}
|
|
#endif
|
|
|
|
if (wev->timedout) {
|
|
ngx_http_client_error(r, 0, NGX_HTTP_REQUEST_TIME_OUT);
|
|
return;
|
|
}
|
|
|
|
rc = ngx_http_output_filter(r, NULL);
|
|
|
|
ngx_log_debug(c->log, "writer output filter: %d" _ rc);
|
|
|
|
if (rc == NGX_AGAIN) {
|
|
if (!wev->ready) {
|
|
clcf = ngx_http_get_module_loc_conf(r->main ? r->main : r,
|
|
ngx_http_core_module);
|
|
ngx_add_timer(wev, clcf->send_timeout);
|
|
}
|
|
|
|
if (ngx_handle_level_write_event(wev) == NGX_ERROR) {
|
|
ngx_http_close_request(r, 0);
|
|
ngx_http_close_connection(r->connection);
|
|
}
|
|
|
|
return;
|
|
}
|
|
|
|
ngx_log_debug(c->log, "http writer done");
|
|
|
|
ngx_http_finalize_request(r, rc);
|
|
}
|
|
|
|
|
|
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) && rev->active) {
|
|
if (ngx_del_event(rev, NGX_READ_EVENT, 0) == NGX_ERROR) {
|
|
c = rev->data;
|
|
r = c->data;
|
|
ngx_http_close_request(r, 0);
|
|
ngx_http_close_connection(c);
|
|
}
|
|
}
|
|
|
|
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);
|
|
}
|
|
|
|
if (r->headers_in.content_length_n <= 0) {
|
|
return NGX_OK;
|
|
}
|
|
|
|
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 (ngx_handle_level_read_event(rev) == NGX_ERROR) {
|
|
return NGX_HTTP_INTERNAL_SERVER_ERROR;
|
|
}
|
|
|
|
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_AGAIN) {
|
|
if (ngx_handle_level_read_event(rev) == NGX_ERROR) {
|
|
ngx_http_close_request(r, rc);
|
|
ngx_http_close_connection(c);
|
|
return;
|
|
}
|
|
}
|
|
|
|
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");
|
|
|
|
if (r->headers_in.content_length_n == 0) {
|
|
return NGX_OK;
|
|
}
|
|
|
|
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_AGAIN;
|
|
}
|
|
|
|
r->headers_in.content_length_n -= n;
|
|
|
|
return NGX_OK;
|
|
}
|
|
|
|
|
|
static void ngx_http_set_keepalive(ngx_http_request_t *r)
|
|
{
|
|
int len;
|
|
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);
|
|
|
|
clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
ngx_add_timer(rev, clcf->keepalive_timeout);
|
|
|
|
if (ngx_handle_level_read_event(rev) == NGX_ERROR) {
|
|
ngx_http_close_connection(c);
|
|
return;
|
|
}
|
|
|
|
h = c->buffer;
|
|
|
|
if (h->pos < h->last) {
|
|
|
|
/*
|
|
* Pipelined request.
|
|
*
|
|
* 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;
|
|
wev->event_handler = ngx_http_empty_handler;
|
|
|
|
if (wev->active) {
|
|
if (ngx_event_flags & NGX_HAVE_KQUEUE_EVENT) {
|
|
if (ngx_del_event(wev, NGX_WRITE_EVENT, NGX_DISABLE_EVENT)
|
|
== NGX_ERROR)
|
|
{
|
|
ngx_http_close_connection(c);
|
|
return;
|
|
}
|
|
|
|
} else 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;
|
|
}
|
|
}
|
|
}
|
|
|
|
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 (rev->ready) {
|
|
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 *ctx;
|
|
|
|
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;
|
|
}
|
|
|
|
ctx = (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", ctx->client);
|
|
ngx_http_close_connection(c);
|
|
return;
|
|
}
|
|
|
|
c->buffer->last += n;
|
|
rev->log->handler = ngx_http_log_error;
|
|
ctx->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, *wev;
|
|
ngx_connection_t *c;
|
|
ngx_http_core_loc_conf_t *clcf;
|
|
|
|
c = r->connection;
|
|
|
|
clcf = ngx_http_get_module_loc_conf(r, ngx_http_core_module);
|
|
|
|
rev = c->read;
|
|
rev->event_handler = ngx_http_lingering_close_handler;
|
|
|
|
r->lingering_time = ngx_time() + clcf->lingering_time / 1000;
|
|
ngx_add_timer(rev, clcf->lingering_timeout);
|
|
|
|
if (ngx_handle_level_read_event(rev) == NGX_ERROR) {
|
|
ngx_http_close_request(r, 0);
|
|
ngx_http_close_connection(c);
|
|
return;
|
|
}
|
|
|
|
wev = c->write;
|
|
wev->event_handler = ngx_http_empty_handler;
|
|
|
|
if (wev->active) {
|
|
if (ngx_event_flags & NGX_HAVE_KQUEUE_EVENT) {
|
|
if (ngx_del_event(wev, NGX_WRITE_EVENT, NGX_DISABLE_EVENT)
|
|
== NGX_ERROR)
|
|
{
|
|
ngx_http_close_connection(c);
|
|
return;
|
|
}
|
|
|
|
} else 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;
|
|
}
|
|
}
|
|
}
|
|
|
|
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_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;
|
|
}
|
|
|
|
ngx_add_timer(rev, timer);
|
|
|
|
return;
|
|
}
|
|
|
|
|
|
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_chain_t out;
|
|
|
|
ngx_test_null(h, ngx_calloc_hunk(r->pool), NGX_ERROR);
|
|
h->type = NGX_HUNK_LAST;
|
|
out.hunk = h;
|
|
out.next = NULL;
|
|
|
|
return ngx_http_output_filter(r, &out);
|
|
}
|
|
|
|
|
|
void ngx_http_close_request(ngx_http_request_t *r, int error)
|
|
{
|
|
ngx_int_t i;
|
|
ngx_http_log_ctx_t *ctx;
|
|
ngx_http_cleanup_t *cleanup;
|
|
|
|
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);
|
|
|
|
cleanup = r->cleanup.elts;
|
|
for (i = 0; i < r->cleanup.nelts; i++) {
|
|
if (cleanup[i].cache) {
|
|
ngx_http_cache_unlock(cleanup[i].data.cache.hash,
|
|
cleanup[i].data.cache.cache,
|
|
r->connection->log);
|
|
continue;
|
|
}
|
|
|
|
if (ngx_close_file(cleanup[i].data.file.fd) == NGX_FILE_ERROR) {
|
|
ngx_log_error(NGX_LOG_ALERT, r->connection->log, ngx_errno,
|
|
ngx_close_file_n " \"%s\" failed",
|
|
cleanup[i].data.file.name);
|
|
}
|
|
}
|
|
|
|
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 = r->connection->log->data;
|
|
ctx->url = NULL;
|
|
|
|
ngx_destroy_pool(r->pool);
|
|
|
|
return;
|
|
}
|
|
|
|
|
|
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);
|
|
}
|
|
|
|
if (c->write->timer_set) {
|
|
ngx_del_timer(c->write);
|
|
}
|
|
|
|
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);
|
|
|
|
return;
|
|
}
|
|
|
|
|
|
static void ngx_http_client_error(ngx_http_request_t *r,
|
|
int client_error, int error)
|
|
{
|
|
ngx_http_log_ctx_t *ctx;
|
|
|
|
ctx = r->connection->log->data;
|
|
|
|
if (error == NGX_HTTP_REQUEST_TIME_OUT) {
|
|
ngx_log_error(NGX_LOG_INFO, r->connection->log, NGX_ETIMEDOUT,
|
|
"client timed out");
|
|
ngx_http_close_request(r, error);
|
|
ngx_http_close_connection(r->connection);
|
|
return;
|
|
}
|
|
|
|
r->connection->log->handler = NULL;
|
|
|
|
if (ctx->url) {
|
|
ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
|
|
client_header_errors[client_error - NGX_HTTP_CLIENT_ERROR],
|
|
ctx->client, ctx->url);
|
|
|
|
} else {
|
|
ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
|
|
client_header_errors[client_error - NGX_HTTP_CLIENT_ERROR],
|
|
ctx->client);
|
|
}
|
|
|
|
r->connection->log->handler = ngx_http_log_error;
|
|
|
|
ngx_http_finalize_request(r, error);
|
|
}
|
|
|
|
|
|
static size_t ngx_http_log_error(void *data, char *buf, size_t len)
|
|
{
|
|
ngx_http_log_ctx_t *ctx = 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);
|
|
}
|
|
}
|