mirror of
https://github.com/tanrax/maza-ad-blocking.git
synced 2024-12-26 19:05:34 +01:00
a6a0bb0b6c
The [Shellcheck](https://www.shellcheck.net) linter raised a few issues with the previous version of this script; see Issue #6 for short discussion. This commit simply implements the changes recommended by Shellcheck.
158 lines
3.7 KiB
Bash
Executable File
158 lines
3.7 KiB
Bash
Executable File
#!/usr/bin/env bash
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# START
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set -e
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# VARIABLES
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URL_DNS_LIST="https://pgl.yoyo.org/adservers/serverlist.php?showintro=0&mimetype=plaintext"
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NAME_OSX="Darwin"
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THIS_OS=$(uname -mrs)
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PROGNAME=$(basename "$0")
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[[ -z "${XDG_CONFIG_HOME}" ]] && CONFIG=$HOME/.maza/ || CONFIG=$XDG_CONFIG_HOME/maza
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HOST_FILE=/etc/hosts
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COLOR_RED=$(tput setaf 1)
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COLOR_GREEN=$(tput setaf 2)
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COLOR_RESET=$(tput sgr0)
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LIST="list"
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LIST_DNSMASQ="dnsmasq.conf"
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START_TAG="## MAZA - List ad blocking"
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PROJECT="### https://github.com/tanrax/maza-ad-blocking"
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AUTHOR="### Created by Andros Fenollosa (https://programadorwebvalencia.com/)"
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END_TAG="## END MAZA"
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# Create sed cross system
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custom-sed() {
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if [[ $THIS_OS = *$NAME_OSX* ]]; then
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# Check if OSX and install GSED
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if [ -x "$(command -v gsed)" ]; then
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gsed "$@"
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else
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echo "${COLOR_RED}ERROR. You must install gsed if you are using OSX${COLOR_RESET}"
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exit 1
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fi
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else
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# Linux
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sed "$@"
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fi
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}
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export -f custom-sed
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# FUNCTIONS
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## HELP
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usage() {
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if [ "$*" != "" ] ; then
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echo "Error: $*"
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fi
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cat << EOF
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Usage: $PROGNAME [OPTION]
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Simple and efficient local ad blocking throughout the network.
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Options:
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status Check if it's active or not
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update Update the list of DNS to be blocked
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start Activate blocking DNS.
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stop Stop blocking DNS.
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--help Display this usage message and exit
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EOF
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exit 1
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}
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status() {
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if grep -qF "$START_TAG" "$HOST_FILE";then
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echo "${COLOR_GREEN}ENABLED${COLOR_RESET}"
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else
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echo "${COLOR_RED}DISABLED${COLOR_RESET}"
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fi
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}
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update() {
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# Make conf folder
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rm -f "$CONFIG$LIST"
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rm -f "$CONFIG$LIST_DNSMASQ"
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mkdir -p "$CONFIG"
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# Download DNS list
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curl -L -s "$URL_DNS_LIST" -o "$CONFIG$LIST"
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# Clear list
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## Remove comments
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custom-sed -i.bak '/^#/ d' "$CONFIG$LIST"
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# Make dnsmasq format
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## 127.0.0.1 doubleclick.net to address=/doubleclick.net/127.0.0.1
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cp "$CONFIG$LIST" "$CONFIG$LIST_DNSMASQ"
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custom-sed -i.bak 's/127.0.0.1 /address=\//g' "$CONFIG$LIST_DNSMASQ"
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custom-sed -i.bak 's/$/\/127.0.0.1/g' "$CONFIG$LIST_DNSMASQ"
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## Add start tag DNS list in first line
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custom-sed -i.bak "1i\\$AUTHOR" "$CONFIG$LIST"
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custom-sed -i.bak "1i\\$PROJECT" "$CONFIG$LIST"
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custom-sed -i.bak "1i\\$START_TAG" "$CONFIG$LIST"
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## Add end tag DNS list in first line
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echo "$END_TAG" >> "$CONFIG/$LIST"
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## Add start tag DNS dnsmasq in first line
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custom-sed -i.bak "1i\\$AUTHOR" "$CONFIG$LIST_DNSMASQ"
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custom-sed -i.bak "1i\\$PROJECT" "$CONFIG$LIST_DNSMASQ"
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custom-sed -i.bak "1i\\$START_TAG" "$CONFIG$LIST_DNSMASQ"
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## Add end tag DNS DNSMASQ in first line
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echo "$END_TAG" >> "$CONFIG$LIST_DNSMASQ"
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# Remove temp file
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rm "$CONFIG$LIST.bak"
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rm "$CONFIG$LIST_DNSMASQ.bak"
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# Notify user
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echo "${COLOR_GREEN}List updated!${COLOR_RESET}"
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}
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start() {
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update
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# Add List to host file
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cat "$CONFIG/$LIST" >> "$HOST_FILE"
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# Notify user
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echo "${COLOR_GREEN}ENABLED!${COLOR_RESET}"
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}
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stop() {
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# Remove list to host file
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custom-sed -i "/$START_TAG/,/$END_TAG/d" "$HOST_FILE"
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# Remove DNSMASQ
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cat /dev/null > "$CONFIG$LIST_DNSMASQ"
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# Notify user
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echo "${COLOR_GREEN}DISABLED!${COLOR_RESET}"
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}
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# CONTROLE ARGUMENTS
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isArg=""
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while [ $# -gt 0 ] ; do
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case "$1" in
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--help)
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usage
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;;
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status)
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isArg="1"
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status
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;;
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update)
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isArg="1"
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update
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;;
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start)
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isArg="1"
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start
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;;
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stop)
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isArg="1"
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stop
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;;
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*)
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esac
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shift
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done
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if [ -z $isArg ] ; then
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usage "Not enough arguments"
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fi
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