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iOS 探討之 程式碼混淆

#!/usr/bin/env bash
TABLENAME=symbols
SYMBOL_DB_FILE="symbols"
STRING_SYMBOL_FILE="func.list"
HEAD_FILE="$PROJECT_DIR/$PROJECT_NAME/codeObfuscation.h"
export LC_CTYPE=C
#維護資料庫方便日後作排重
createTable() {
echo "create table $TABLENAME(src text, des text);" | sqlite3 $SYMBOL_DB_FILE
}
insertValue() {
echo "insert into $TABLENAME values('$1' ,'$2');" | sqlite3 $SYMBOL_DB_FILE
}
query() {
echo "select * from $TABLENAME where src='$1';" | sqlite3 $SYMBOL_DB_FILE
}
ramdomString() {
openssl rand -base64 64 | tr -cd 'a-zA-Z' |head -c 16
}
rm -f $SYMBOL_DB_FILE
rm -f $HEAD_FILE
createTable
touch $HEAD_FILE
echo '#ifndef Project_codeObfuscation_h'
echo "//confuse string at `date`" >> $HEAD_FILE
cat "$STRING_SYMBOL_FILE" | while read -ra line; do
if [[ ! -z "$line" ]]; then
ramdom=`ramdomString`
echo $line $ramdom
insertValue $line $ramdom
echo "#define $line $ramdom" >> $HEAD_FILE
fi
done
echo "#endif" >> $HEAD_FILE
sqlite3 $SYMBOL_DB_FILE .dump