Diff: apps/webserver/httpd-cgi.c

Revision:

0:685224d2f66d

Child:

1:b4d28172cacd

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/apps/webserver/httpd-cgi.c	Sat Jun 14 16:02:21 2014 +0000
@@ -0,0 +1,203 @@
+/**
+ * \addtogroup httpd
+ * @{
+ */
+
+/**
+ * \file
+ *         Web server script interface
+ * \author
+ *         Adam Dunkels <adam@sics.se>
+ *
+ */
+
+/*
+ * Copyright (c) 2001-2006, Adam Dunkels.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote
+ *    products derived from this software without specific prior
+ *    written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
+ * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
+ * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * This file is part of the uIP TCP/IP stack.
+ *
+ * $Id: httpd-cgi.c,v 1.2 2006/06/11 21:46:37 adam Exp $
+ *
+ */
+
+#include "uip.h"
+#include "psock.h"
+#include "httpd.h"
+#include "httpd-cgi.h"
+#include "httpd-fs.h"
+
+#include <stdio.h>
+#include <string.h>
+
+HTTPD_CGI_CALL(file, "file-stats", file_stats);
+HTTPD_CGI_CALL(tcp, "tcp-connections", tcp_stats);
+HTTPD_CGI_CALL(net, "net-stats", net_stats);
+
+static const struct httpd_cgi_call *calls[] = { &file, &tcp, &net, NULL };
+
+/*---------------------------------------------------------------------------*/
+static
+PT_THREAD(nullfunction(struct httpd_state *s, char *ptr))
+{
+  PSOCK_BEGIN(&s->sout);
+  PSOCK_END(&s->sout);
+}
+/*---------------------------------------------------------------------------*/
+httpd_cgifunction
+httpd_cgi(char *name)
+{
+  const struct httpd_cgi_call **f;
+
+  /* Find the matching name in the table, return the function. */
+  for(f = calls; *f != NULL; ++f) {
+    if(strncmp((*f)->name, name, strlen((*f)->name)) == 0) {
+      return (*f)->function;
+    }
+  }
+  return nullfunction;
+}
+/*---------------------------------------------------------------------------*/
+static unsigned short
+generate_file_stats(void *arg)
+{
+  char *f = (char *)arg;
+  return snprintf((char *)uip_appdata, UIP_APPDATA_SIZE, "%5u", httpd_fs_count(f));
+}
+/*---------------------------------------------------------------------------*/
+static
+PT_THREAD(file_stats(struct httpd_state *s, char *ptr))
+{
+  PSOCK_BEGIN(&s->sout);
+
+  PSOCK_GENERATOR_SEND(&s->sout, generate_file_stats, strchr(ptr, ' ') + 1);
+  
+  PSOCK_END(&s->sout);
+}
+/*---------------------------------------------------------------------------*/
+static const char closed[] =   /*  "CLOSED",*/
+{0x43, 0x4c, 0x4f, 0x53, 0x45, 0x44, 0};
+static const char syn_rcvd[] = /*  "SYN-RCVD",*/
+{0x53, 0x59, 0x4e, 0x2d, 0x52, 0x43, 0x56,
+ 0x44,  0};
+static const char syn_sent[] = /*  "SYN-SENT",*/
+{0x53, 0x59, 0x4e, 0x2d, 0x53, 0x45, 0x4e,
+ 0x54,  0};
+static const char established[] = /*  "ESTABLISHED",*/
+{0x45, 0x53, 0x54, 0x41, 0x42, 0x4c, 0x49, 0x53, 0x48,
+ 0x45, 0x44, 0};
+static const char fin_wait_1[] = /*  "FIN-WAIT-1",*/
+{0x46, 0x49, 0x4e, 0x2d, 0x57, 0x41, 0x49,
+ 0x54, 0x2d, 0x31, 0};
+static const char fin_wait_2[] = /*  "FIN-WAIT-2",*/
+{0x46, 0x49, 0x4e, 0x2d, 0x57, 0x41, 0x49,
+ 0x54, 0x2d, 0x32, 0};
+static const char closing[] = /*  "CLOSING",*/
+{0x43, 0x4c, 0x4f, 0x53, 0x49,
+ 0x4e, 0x47, 0};
+static const char time_wait[] = /*  "TIME-WAIT,"*/
+{0x54, 0x49, 0x4d, 0x45, 0x2d, 0x57, 0x41,
+ 0x49, 0x54, 0};
+static const char last_ack[] = /*  "LAST-ACK"*/
+{0x4c, 0x41, 0x53, 0x54, 0x2d, 0x41, 0x43,
+ 0x4b, 0};
+
+static const char *states[] = {
+  closed,
+  syn_rcvd,
+  syn_sent,
+  established,
+  fin_wait_1,
+  fin_wait_2,
+  closing,
+  time_wait,
+  last_ack};
+  
+
+static unsigned short
+generate_tcp_stats(void *arg)
+{
+  struct uip_conn *conn;
+  struct httpd_state *s = (struct httpd_state *)arg;
+    
+  conn = &uip_conns[s->count];
+  return snprintf((char *)uip_appdata, UIP_APPDATA_SIZE,
+		 "<tr><td>%d</td><td>%u.%u.%u.%u:%u</td><td>%s</td><td>%u</td><td>%u</td><td>%c %c</td></tr>\r\n",
+		 htons(conn->lport),
+		 htons(conn->ripaddr[0]) >> 8,
+		 htons(conn->ripaddr[0]) & 0xff,
+		 htons(conn->ripaddr[1]) >> 8,
+		 htons(conn->ripaddr[1]) & 0xff,
+		 htons(conn->rport),
+		 states[conn->tcpstateflags & UIP_TS_MASK],
+		 conn->nrtx,
+		 conn->timer,
+		 (uip_outstanding(conn))? '*':' ',
+		 (uip_stopped(conn))? '!':' ');
+}
+/*---------------------------------------------------------------------------*/
+static
+PT_THREAD(tcp_stats(struct httpd_state *s, char *ptr))
+{
+  
+  PSOCK_BEGIN(&s->sout);
+
+  for(s->count = 0; s->count < UIP_CONNS; ++s->count) {
+    if((uip_conns[s->count].tcpstateflags & UIP_TS_MASK) != UIP_CLOSED) {
+      PSOCK_GENERATOR_SEND(&s->sout, generate_tcp_stats, s);
+    }
+  }
+
+  PSOCK_END(&s->sout);
+}
+/*---------------------------------------------------------------------------*/
+static unsigned short
+generate_net_stats(void *arg)
+{
+  struct httpd_state *s = (struct httpd_state *)arg;
+  return snprintf((char *)uip_appdata, UIP_APPDATA_SIZE,
+		  "%5u\n", ((uip_stats_t *)&uip_stat)[s->count]);
+}
+
+static
+PT_THREAD(net_stats(struct httpd_state *s, char *ptr))
+{
+  PSOCK_BEGIN(&s->sout);
+
+#if UIP_STATISTICS
+
+  for(s->count = 0; s->count < sizeof(uip_stat) / sizeof(uip_stats_t);
+      ++s->count) {
+    PSOCK_GENERATOR_SEND(&s->sout, generate_net_stats, s);
+  }
+  
+#endif /* UIP_STATISTICS */
+  
+  PSOCK_END(&s->sout);
+}
+/*---------------------------------------------------------------------------*/
+/** @} */