Mustafa Kamoona / Mbed 2 deprecated WifiFlexManager Featured

For Wifi personal security mode. It is always cumbersome to change the password whenever there is a breach in the network. and even more annoying is to distribute the passwords to the clients/guests. WifiFlexManager is a project that can change the password (with a random predefined length string) whenever the admin sends a specific IR code (through android app) and can retrieve the current password or the connected users (Through Bluetooth screen). So as a client who wants to get connected to the router, you only need to point your phone's IR towards the mbed and press a button, and the current password will be shown at your phone's screen.

Dependencies:   EthernetInterface HTTPServer RemoteIR SDFileSystem mbed-rpc mbed-rtos mbed

Diff: main.cpp

Revision:
4:779396fc3f76
Parent:
3:e8334a5aeeff
--- a/main.cpp	Mon May 04 02:19:07 2015 +0000
+++ b/main.cpp	Mon May 04 03:39:37 2015 +0000
@@ -35,7 +35,7 @@
 //Function that calls the function that lists users
 TCPSocketConnection socket;
 
-char username[]=" root\r\n";
+char username[]="root\r\n";
 char password[]="password\r\n";
 char chngpwd[]="nvram set wl_wpa_psk=PleaseVote1forkamoona\r\n";
 char getusers[]="cat /proc/net/arp\r\n";
@@ -96,7 +96,6 @@
     int n;
     //End DB init
 
-
     //IR Init
     uint8_t buf1[32];
     uint8_t buf2[32];
@@ -185,54 +184,89 @@
     printf("sd = %d\n", sd);
     printf("c = %c\n", c);
     char BTbuf[100], title[100];
-    char shift[]="       ";   // 7 Characters string
+    char shift[strlen(check)];
     char buf[] = " ";
     bool res=false;
     FILE *fp;
     if (sd)
-        {   
+    {   
         if (c=='u')
             fp=fopen("/sd/Wifi/users.txt", "w");
         else if (c=='p')
             fp=fopen("/sd/Wifi/pass.txt", "w");    
-        if(fp == NULL) {
+        if(fp == NULL) 
+        {
             error("Could not open file for write\n");       
-                        }
         }
+    }
+    int negState = 0;
+    int negCnt = 0;
+    char negAns[3];
+    
     while (res==false)
     {
         int n = socket.receive(buf, 1);
-        if (sd)
-           {
-               fprintf(fp, "%c",buf[0]);
-               
+        
+        if (negState == 1 && negCnt < 3)
+        {
+            if (buf[0] == DO)
+            {
+                negAns[negCnt] = WONT;
+                negCnt ++;
+            }
+            else
+            {
+                negAns[negCnt] = buf[0];
+                negCnt ++;
             }
-        printf("%c",buf[0]);
-        HC06.printf("%c",buf[0]);
-        for (int k=0;k<6;k++)
-            shift[k]=shift[k+1];
-        shift[6]=buf[0];
-        if (strcmp(shift,check) == 0)
+        }
+        else if (negCnt >= 3)
+        {
+            negCnt = 0;
+            negState = 0;
+            socket.send_all(negAns, sizeof(negAns));
+        }
+    
+        if (buf[0] == IAC)
         {
-            printf("Prompt Reached!\n");
-            res = true;
+            negCnt = 0;
+            negState = 1;
+            negAns[negCnt] = IAC;
+            negCnt ++;
+        }
+        
+        printf("Last received is %s\n",buf);
+        
+        if (negState == 0)
+        {
+            if (sd)
+            {
+                fprintf(fp, "%c",buf[0]);
+            }
+            printf("%c",buf[0]);
+            HC06.printf("%c",buf[0]);
+            for (int k=0;k<strlen(check);k++)
+                shift[k]=shift[k+1];
+            shift[strlen(check)]=buf[0];
+            if (strcmp(shift,check) == 0)
+            {
+                printf("Prompt Reached!\n");
+                res = true;
+            }
         }
     } 
+    
     if (sd)
     {
         printf("Closing file on SD...\n");
-       
         fgets(BTbuf, sizeof BTbuf, fp); /* expect string like "title: TITLE WITH SPACES" */
         sscanf(buf, "%*s %99[^\n]", title);
-        
         HC06.printf("%s",BTbuf);
         printf("%s",BTbuf);
         HC06.printf("%s",title);
         printf("%s",title);
-
         fclose(fp);
     }
-    
 }
 
 /*void lsusrsf(void) //callstring is a sting passed to be sent by the TCP socket
@@ -247,22 +281,27 @@
         printf("Unable to connect to (%s) on port (%d)\n", ECHO_SERVER_ADDRESS, ECHO_SERVER_PORT);
         wait(1);
     }
-    char negot[]={255,253,1,255,254,31};
-    socket.send_all(negot, sizeof(negot) - 1);
+    //char negot[]={255,253,1,255,254,31};
+    //socket.send_all(negot, sizeof(negot) - 1);
+    
+    int requirelogin = 1;
     
-    printf("Entering function: \n");
-    char log[] = login;
-    cursor(&log[0],false,'a');
-    printf("Exiting function: \n");
-    socket.send_all(username, sizeof(username) - 1); 
-    printf("Sent username!\n");
+    if (requirelogin == 1)
+    {
+        printf("Entering function: \n");
+        char log[] = login;
+        cursor(&log[0],false,'a');
+        printf("Exiting function: \n");
+        socket.send_all(username, sizeof(username) - 1); 
+        printf("Sent username!\n");
 
-    printf("Entering function: \n");
-    char paspmt[] = passcurs;
-    cursor(&paspmt[0],false,'a');
-    printf("Exiting function: \n");
-    socket.send_all(password, sizeof(password) - 1);  
-    printf("Sent password!\n");
+        printf("Entering function: \n");
+        char paspmt[] = passcurs;
+        cursor(&paspmt[0],false,'a');
+        printf("Exiting function: \n");
+        socket.send_all(password, sizeof(password) - 1);  
+        printf("Sent password!\n");
+    }
     
     printf("Entering function: \n");
     char curspmt[] = cursr;