add (maybe) workable code

bwifi.sh

@@ -0,0 +1,56 @@
+#!/usr/bin/env bash
+
+username=1970111222
+password=123123321
+
+# get authorizing location from 302 response header
+# use an IP address to bypass the DNS lookup
+echo 'sending a http request...'
+res_headers=$(curl --request GET --head --no-progress-meter http://119.29.29.29/)
+echo 'response received'
+
+if ! grep "Server: DrcomServer" <<< $res_headers ; then
+    echo "didn't receive a response from DrcomServer, you may be online now."
+    exit 1
+fi
+
+auth_host=$(sed -n -E 's/Location: (.*)/\1/p' <<< $res_headers | tr -d '[:space:]')
+auth_host="${auth_host}/a70.htm"
+
+echo auth host: $auth_host
+# known auth host: 10.1.206.13
+# - 10.1.206.13
+# - 192.168.211.3
+
+# for wireless, which will be redirected to this location, a "@bistu" is required,
+if [ "$auth_host" == *"10.1.206.13"* ] ; then
+    username="${username}@bistu"
+fi
+
+# form data
+title=$(curl --no-progress-meter --include \
+            --data-urlencode "DDDDD=$username" \
+            --data-urlencode "upass=$password" \
+            --data-urlencode "R1=0" \
+            --data-urlencode "R2=" \
+            --data-urlencode "R3=0" \
+            --data-urlencode "R6=0" \
+            --data-urlencode "para=00" \
+            --data-urlencode "0MKKey=123456" \
+            --data-urlencode "buttonClicked=" \
+            --data-urlencode "redirect_url=" \
+            --data-urlencode "err_flag=" \
+            --data-urlencode "username=" \
+            --data-urlencode "password=" \
+            --data-urlencode "user=" \
+            --data-urlencode "cmd=" \
+            --data-urlencode "Login=" \
+            $auth_host | iconv --from-code=gb2312 --to-code=utf-8 | sed -n -E 's#<title>(.*)</title>#\1#p')
+
+echo auth result page title: $title
+if [ "$title" == "认证成功页" ] ; then
+    echo "auth result: success"
+else
+    echo "auth result: failed"
+fi
+