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Get download url from mega.nz
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#!/bin/bash | |
# Copyright 2018, 2019, 2020 Azure Zanculmarktum | |
# All rights reserved. | |
# | |
# Redistribution and use of this script, with or without modification, is | |
# permitted provided that the following conditions are met: | |
# | |
# 1. Redistributions of this script must retain the above copyright | |
# notice, this list of conditions and the following disclaimer. | |
# | |
# THIS SOFTWARE IS PROVIDED BY THE AUTHOR "AS IS" AND ANY EXPRESS OR IMPLIED | |
# WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF | |
# MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO | |
# EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | |
# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, | |
# PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; | |
# OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, | |
# WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR | |
# OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF | |
# ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
# Dependencies: | |
# openssl | |
# Usage: | |
# $ ./megafetch.sh https://mega.nz/#!abcdefgh!1234567890abcdefghijklmnopqrstuvwxyzABCDEFG | |
# http://gfs208n103.userstorage.mega.co.nz/dl/-abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ1234567890abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ1234567890A | |
# file.name | |
# abcefghijklmnopqrstuvwxyz0123456 | |
# 1234567890abcdef0000000000000000 | |
# $ wget -O file.name http://gfs208n103.userstorage.mega.co.nz/dl/-abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ1234567890abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ1234567890A | |
# $ cat file.name | openssl enc -d -aes-128-ctr -K abcefghijklmnopqrstuvwxyz0123456 -iv 1234567890abcdef0000000000000000 > file.name.new | |
# $ mv -f file.name.new file.name | |
URL="" | |
if [[ $1 =~ ^https?:\/\/mega(\.co)?\.nz ]]; then | |
URL="$1" | |
fi | |
if [[ ! $URL ]]; then | |
echo "Usage: ${0##*/} url" >&2 | |
exit 1 | |
fi | |
CURL="curl -Y 1 -y 10" | |
missing=false | |
for cmd in openssl; do | |
if [[ ! $(command -v "$cmd" 2>&1) ]]; then | |
missing=true | |
echo "${0##*/}: $cmd: command not found" >&2 | |
fi | |
done | |
if $missing; then | |
exit 1 | |
fi | |
if [[ $URL =~ .*/file/[^#]*#[^#]* ]]; then | |
id="${URL#*file/}"; id="${id%%#*}" | |
key="${URL##*file/}"; key="${key##*#}" | |
else | |
id="${URL#*!}"; id="${id%%!*}" | |
key="${URL##*!}" | |
fi | |
raw_hex=$(echo "${key}=" | tr '\-_' '+/' | tr -d ',' | base64 -d -i 2>/dev/null | od -v -An -t x1 | tr -d '\n ') | |
hex=$(printf "%016x" \ | |
$(( 0x${raw_hex:0:16} ^ 0x${raw_hex:32:16} )) \ | |
$(( 0x${raw_hex:16:16} ^ 0x${raw_hex:48:16} )) | |
) | |
json=$($CURL -s -H 'Content-Type: application/json' -d '[{"a":"g", "g":"1", "p":"'"$id"'"}]' 'https://g.api.mega.co.nz/cs?id=&ak=') || exit 1; json="${json#"[{"}"; json="${json%"}]"}" | |
file_url="${json##*'"g":'}"; file_url="${file_url%%,*}"; file_url="${file_url//'"'/}" | |
json=$($CURL -s -H 'Content-Type: application/json' -d '[{"a":"g", "p":"'"$id"'"}]' 'https://g.api.mega.co.nz/cs?id=&ak=') || exit 1 | |
at="${json##*'"at":'}"; at="${at%%,*}"; at="${at//'"'/}" | |
json=$(echo "${at}==" | tr '\-_' '+/' | tr -d ',' | openssl enc -a -A -d -aes-128-cbc -K "$hex" -iv "00000000000000000000000000000000" -nopad | tr -d '\0'); json="${json#"MEGA{"}"; json="${json%"}"}" | |
file_name="${json##*'"n":'}" | |
if [[ $file_name == *,* ]]; then | |
file_name="${file_name%%,*}" | |
fi | |
file_name="${file_name//'"'/}" | |
#$CURL -s "$file_url" | openssl enc -d -aes-128-ctr -K "$hex" -iv "${raw_hex:32:16}0000000000000000" > "$file_name" | |
echo "$file_url" | |
echo "$file_name" | |
echo "$hex" | |
echo "${raw_hex:32:16}0000000000000000" |
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I get this error:
It does output the *.userstorage.mega.co.nz download link, but when I wget it, it's not the file content. Do I need to decrypt that as well?