Check tahoelafs server creation

src/freedombone-app-tahoelafs

         return
     fi
 
-    if grep -q "$public_key" $tahoelafs_storage_file; then
-        return
-    fi
-    if [ ! -f $tahoelafs_storage_file ]; then
-        echo 'storage:' > $tahoelafs_storage_file
+    if [ ! -f ${tahoelafs_storage_file} ]; then
+        echo 'storage:' > ${tahoelafs_storage_file}
     else
-        echo '# storage' >> $tahoelafs_storage_file
+        if grep -q "${public_key}" ${tahoelafs_storage_file}; then
+            return
+        fi
+        echo '# storage' >> ${tahoelafs_storage_file}
     fi
-    echo "  $public_key" >> $tahoelafs_storage_file
-    echo "    ann:" >> $tahoelafs_storage_file
-    echo "      nickname: $nick" >> $tahoelafs_storage_file
-    echo "      anonymous-storage-FURL: $furl" >> $tahoelafs_storage_file
-    chown tahoelafs:debian-tor $tahoelafs_storage_file
+    echo "  ${public_key}" >> ${tahoelafs_storage_file}
+    echo "    ann:" >> ${tahoelafs_storage_file}
+    echo "      nickname: ${nick}" >> ${tahoelafs_storage_file}
+    echo "      anonymous-storage-FURL: ${furl}" >> ${tahoelafs_storage_file}
+    chown tahoelafs:debian-tor ${tahoelafs_storage_file}
 
     if ! grep -q "HidServAuth ${storage_hostname}" /etc/tor/torrc; then
         echo "HidServAuth ${storage_hostname}" >> /etc/tor/torrc
     create_tahoelafs_stealth_node /home/tahoelafs/storage /home/tahoelafs/client ${node_nick} ${client_nick}
 
     add_tahoelafs_server "$(get_tahoelafs_storage_hostname)" "$(get_tahoelafs_public_key)" "${node_nick}" "$(get_tahoelafs_furl)"
+    if ! grep -q "HidServAuth $(get_tahoelafs_storage_hostname)" /etc/tor/torrc; then
+        echo $'Unable to create tahoelafs server'
+        exit 738752
+    fi
 
     # start the storage node
     su -c '/home/tahoelafs/tahoelafs/venv/bin/python2 /home/tahoelafs/tahoelafs/venv/bin/tahoe start /home/tahoelafs/storage' - tahoelafs