ch-main

#!/usr/bin/env bash
# set -x

## Description: hack charles script!!
## Project layout:
##      charles.hack*    -- Main script (bash)
##      naming.resource  -- version def
##      temp.java        -- template of java code
## Parameter: First parameter should be version number
## Optional option:
##      -s | --save      -- save new version to resource file
##      -m | --manual    -- input manual name of file, and method A, B, C
## Usage:
##      $project/charles.hack
##                       -- auto get version from 'Application' folder
##      $project/charles.hack v4.2.1
##                       -- support version
##      $project/charles.hack v1.1 -m asdf fdsa qwer vcxz
##                       -- manual version, by 'name&method'
##      $project/charles.hack v1.1 --save -m asdf fdsa qwer vcxz
##                       -- manual version with 'save' new declare to resource file
## How to get 'name&method'
## 1.   Look for file which contain 'Unregistered' string.
## 2.   It should have a lot of declare variable
## 3.   that will be my file name, It's it match following condition
## 4.   find the 'public' method that have 2 duplication name
## 4.1. one get 'zero' parameter and return 'boolean'
## 4.2. one get '2' parameter and return 'string'
## 5.   last method get 'zero' parameter and return 'string'
## The --manual should be "3" "5" "4.1" "4.2"
## Creator: KC
## Date:    19/01/61 - DD/MM/YY

script_location="$(cd "$(dirname "$0")" || exit 1 && pwd)"
this="${script_location}/charles.hack"
resource="${script_location}/naming.resource"
java_tmp="${script_location}/temp.java"
java_extension=".java"
class_extension=".class"

app="/Applications/Charles.app"
app_content="${app}/Contents"
charles="$app_content/Java/charles.jar"
dir=/tmp/charles_crack

# resource use to hack charles
# 1 - version
# 2 - license, java file name
# 3 - user register name, method name
# 4 - check license status, method name
# 5 - update license, method name
java_resource_name=("v0.0.0" "xxxx.java" "aaaa" "bbbb" "cccc")

ret=1

_load_resource() {
    if ! result="$(grep "$1 " <"$resource")"; then
        java_resource_name=("$1")
        echo "not support version $1" && return 1
    fi

    arr=($result)
    if [ "${#arr[@]}" -ne 4 ] && [ "${#arr[@]}" -ne 5 ]; then
        echo "Invalid resource @$result" && exit 2
    fi

    v="${arr[0]}"
    m1="${arr[1]}"
    m2="${arr[2]}"
    m3="${arr[3]}"
    m4="${arr[4]}"

    java_resource_name=("$v" "${m1}${java_extension}" "$m2" "$m3" "$m4")
}

_save_resource() {
    echo "${java_resource_name[*]}" >>"$resource"
}

_get_version() {
    echo "${java_resource_name[0]}"
}

_get_app_version() {
    grep CFBundleVersion -A 1 <"${app_content}/Info.plist" | grep -Eo "[0-9.]+"
}

_get_filename() {
    echo "${java_resource_name[1]}"
}

_get_name() {
    echo "${java_resource_name[1]//$java_extension/}"
}

_update_java() {
    local content name m1 m2 m3

    name="%{name}"
    m1="%{method1}"
    m2="%{method2}"
    m3="%{method3}"

    content="$(cat "$java_tmp")"
    content="${content//$name/${java_resource_name[1]//$java_extension/}}"
    content="${content//$m1/${java_resource_name[2]}}"
    content="${content//$m2/${java_resource_name[3]}}"
    [ -z "${java_resource_name[4]}" ] &&
        content="${content//$m3/${java_resource_name[3]}}" ||
        content="${content//$m3/${java_resource_name[4]}}"

    # dry run
    # echo "$content"
    # exit 123
    echo "$content" >"${dir}/${java_resource_name[1]}"
}

manual=false
save=false
while [ ${#@} -ne 0 ]; do
    # start with v and follow with number or dot
    if [[ $1 =~ v[0-9.] ]]; then
        _load_resource "$1" || manual=true
    elif [[ $1 == "--save" ]] || [[ $1 == "-s" ]]; then
        save=true
    elif [[ $1 == "--manual" ]] || [[ $1 == "-m" ]]; then
        ! $manual && break
        shift
        java_resource_name+=($@)
        if [ "${#java_resource_name[@]}" -ne 4 ] && [ "${#java_resource_name[@]}" -ne 5 ]; then
            echo "Invalid resource @${java_resource_name[*]}" && exit 2
        fi
    else
        grep "^## " <"$0" | tr -d "#" && exit 0
    fi
    shift
done

[[ $(_get_version) == "v0.0.0" ]] &&
    _load_resource "$(_get_app_version)" || manual=true

header="Automatic"

if $manual; then
    if [ ${#java_resource_name[@]} -eq 1 ]; then
        echo "Never manual assign name!!" && exit 4
    else
        header="Manual"
    fi
fi

printf '%20s version  -- %s\n' "$header" "${java_resource_name[0]}"
printf '%20s filename -- %s\n' "$header" "${java_resource_name[1]}"
printf '%20s m-user   -- %s\n' "$header" "${java_resource_name[2]}"
printf '%20s m-valid  -- %s\n' "$header" "${java_resource_name[3]}"
printf '%20s m-sign   -- %s\n' "$header" "${java_resource_name[4]}"
read -r

mkdir "$dir" 2>/dev/null || echo "crack exist!"
cd "$dir" || exit 1

printf "%20s          -- " "Create java"
_update_java && echo "COMPLETE!" && ret=0 || echo "FAILURE!"
printf "%20s          -- " "Recompack jar file"
javac -encoding UTF-8 "$(_get_filename)" -d . && jar -uvf $charles "com/xk72/charles/$(_get_name)$class_extension" &>/tmp/ch.log && echo "COMPLETE!" && ret=0 || echo "FAILURE!"

if [ $ret -eq 0 ]; then
    cd "$HOME" || exit 5
    rm -r "$dir"
fi

$save && _save_resource

exit "$ret"