48 lines
1.4 KiB
Bash
Executable File
48 lines
1.4 KiB
Bash
Executable File
#!/bin/bash
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data="$(curl -s "https://www.youtube.com/s/player/$1/player_ias.vflset/en_GB/base.js")"
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func="$(grep -P '[a-z]\=a\.split\([\"'"'"']{2}.*a\.join' <<< "$data")"
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echo "full extracted function: $func"
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obfuscatedName="$(grep -Poh '\(""\);[A-Za-z]+' <<< "$func" | sed -s 's/("");//')"
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obfuscatedFunc=$(tr -d '\n' <<< "$data" | grep -Poh "$obfuscatedName\=.*?}}")
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mess="$(grep -Poh "..:function\([a-z]+,[a-z]+\){var" <<< "$obfuscatedFunc" | grep -Poh "^..")"
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rev="$(grep -Poh "..:function\([a-z]+\){[a-z]+.rev" <<< "$obfuscatedFunc" | grep -Poh "^..")"
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splice="$(grep -Poh "..:function\([a-z]+\,[a-z]+\){[a-z]+\." <<< "$obfuscatedFunc" | grep -Poh "^..")"
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echo "mess name: $mess"
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echo "reverse name: $rev"
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echo "splice name: $splice"
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code="$(sed -E 's/.*[a-z]+\.split\(""\);//;s/return.*//' <<< "$func")"
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echo "---"
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IFS=';'
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for i in $code; do
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num="$(grep -Poh ',[0-9]+' <<< "$i" | grep -Poh '[0-9]+')"
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if [[ "$i" == *"$splice"* ]]; then
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echo "a = a[$num:]"
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elif [[ "$i" == *"$rev"* ]]; then
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echo "a.reverse()"
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elif [[ "$i" == *"$mess"* ]]; then
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echo "a = self.mess(a, $num)"
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else
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echo "UNKNOWN????"
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fi
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done
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echo "--- and now, JS"
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for i in $code; do
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num="$(grep -Poh ',[0-9]+' <<< "$i" | grep -Poh '[0-9]+')"
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if [[ "$i" == *"$splice"* ]]; then
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echo "a.splice(0,$num)"
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elif [[ "$i" == *"$rev"* ]]; then
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echo "a.reverse()"
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elif [[ "$i" == *"$mess"* ]]; then
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echo "mess(a,$num)"
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else
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echo "UNKNOWN????"
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fi
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done
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