#!/bin/sh

generateCreditCards=0
generateAutofill=0
helpme=0
generateConflict=0
clearAllItems=0

usage() {
	echo 'Usage: Generate random credit card entries (-c) or autofill (-a). Both can be specified. x will generate a conflict item, K to clear all'
         exit 2
}

args=`getopt cahxK $*`
test  $? -eq  0 || usage
set -- $args
for i
do
	   case "$i"
	   in
			-c)
					   generateCreditCards=1;
					   shift;;
			-a)
					   generateAutofill=1;
					   shift;;
			-x)
				generateConflict=1;
				shift;;
			-K)
				clearAllItems=1;
				shift;;
			-h)
					   helpme=1
					   shift; break;;
			--)
					   shift; break;;
	   esac
done

test "$helpme" -ne 0 && usage

if [ $generateCreditCards -eq 0 -a $generateAutofill -eq 0 -a $generateConflict -eq 0 ]
then
	generateCreditCards=1
fi

# end of option processing
           
# Set expiration date
exp=`date "+%Y-%m-%dT%H:%M:%SZ"`

# Make up a credit card number
amexcc=`echo $((RANDOM%372711122299888+372711122299111))`
visacc=`echo $((RANDOM%4888123456789888+4888123456789111))`
mccc=`echo $((RANDOM%5523123456789888+5523123456789111))`
cclist=($amexcc $visacc $mccc)

idx=`echo $((RANDOM%3+0))`

cctypes=("American Express" "Visa" "Master Card")
ccnumber=${cclist[idx]}

ccholders=("Sam" "Ella" "Alice" "Bob" "Mallory" "Eve")
cardholderName=${ccholders[$RANDOM % ${#ccholders[@]} ]}
cardholderName=`hostname | head -c 18`
cardholderShortName=`hostname | head -c 8`

cardnamestring="$cardholderShortName""’s ""${cctypes[idx]}"

cat <<EOF > ccdata.plist
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
        <key>CardNameUIString</key>
        <string>$cardnamestring</string>
        <key>CardNumber</key>
        <string>$ccnumber</string>
        <key>CardholderName</key>
        <string>$cardholderName</string>
        <key>ExpirationDate</key>
        <date>$exp</date>
</dict>
</plist>
EOF

plutil -convert binary1 -o ccdata.bin ccdata.plist

# debug output
cat ccdata.plist

uid=`uuidgen`

# Create a random credit card item in the keychain

if [ $generateCreditCards -ne 0 ]
then
	security item -v -a -f ccdata.bin class=genp,sync=1,acct="$uid",agrp="com.apple.safari.credit-cards",icmt="This keychain item is used by Safari to automatically fill credit card information in web forms.",type=7477,pdmn=ak,svce="SafariCreditCardEntries",labl="Safari Credit Card Entry: $cardnamestring"
	if [ "$?" -ne "0" ]; then
		echo "credit card item add failed; is the device locked? "
	fi
fi

if [ $generateAutofill -ne 0 ]
then
	`echo $((RANDOM%9999)) > tweakpw`
	email=${ccholders[$RANDOM % ${#ccholders[@]} ]}
	security item -v -a -f tweakpw class=inet,acct="$email@gmail.com",agrp="com.apple.cfnetwork",atyp=form,desc="Web form password",labl="accounts.google.com ($email@gmail.com)",pdmn=ak,port=0,ptcl=htps,srvr=accounts.google.com,type=7477,sync=1
         if [ "$?" -ne "0" ]; then
 		echo "autofill item add failed; is the device locked? "
	fi
fi

if [ $generateConflict -ne 0 ]
then
        `echo "1234" > tweakpw`
        email="conflict"
        security item -v -a -f tweakpw class=inet,acct="$email@gmail.com",agrp="com.apple.cfnetwork",atyp=form,desc="Web form password",labl="accounts.google.com ($email@gmail.com)",pdmn=ak,port=0,ptcl=htps,srvr=accounts.google.com,type=7477,sync=1
         if [ "$?" -ne "0" ]; then
                echo "conflict item add failed; is the device locked? "
        fi
fi

if  [ $clearAllItems -ne 0 ]
then
	echo "Deleting all tweak inet and genp items"
	security item -D class=genp,type=7477,sync=1,pdmn=ak,svce="SafariCreditCardEntries"
	security item -D class=inet,type=7477,ptcl=htps,srvr=accounts.google.com,sync=1
fi