add ddns-scripts (package by Eric Bishop)
git-svn-id: svn://svn.openwrt.org/openwrt/packages@10705 3c298f89-4303-0410-b956-a3cf2f4a3e73
This commit is contained in:
nbd
121
net/ddns-scripts/files/usr/lib/ddns/dynamic_dns_functions.sh
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121
net/ddns-scripts/files/usr/lib/ddns/dynamic_dns_functions.sh
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@ -0,0 +1,121 @@
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# /usr/lib/dynamic_dns/dynamic_dns_functions.sh
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#
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# Written by Eric Paul Bishop, Janary 2008
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# Distributed under the terms of the GNU General Public License (GPL) version 2.0
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#
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# This script is (loosely) based on the one posted by exobyte in the forums here:
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# http://forum.openwrt.org/viewtopic.php?id=14040
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. /etc/functions.sh
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include /lib/network
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#loads all options for a given package and section
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#also, sets all_option_variables to a list of the variable names
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load_all_config_options()
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{
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pkg_name="$1"
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section_id="$2"
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ALL_OPTION_VARIABLES=""
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# this callback loads all the variables
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# in the section_id section when we do
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# config_load. We need to redefine
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# the option_cb for different sections
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# so that the active one isn't still active
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# after we're done with it. For reference
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# the $1 variable is the name of the option
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# and $2 is the name of the section
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config_cb()
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{
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if [ ."$2" = ."$section_id" ]; then
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option_cb()
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{
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ALL_OPTION_VARIABLES="$ALL_OPTION_VARIABLES $1"
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}
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else
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option_cb() { return 0; }
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fi
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}
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config_load "$pkg_name"
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for var in $ALL_OPTION_VARIABLES
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do
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config_get "$var" "$section_id" "$var"
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done
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}
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get_current_ip()
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{
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#if ip source is not defined, assume we want to get ip from wan
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if [ "$ip_source" != "interface" ] && [ "$ip_source" != "web" ]
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then
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ip_source="network"
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ip_network="wan"
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fi
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if [ "$ip_source" = "network" ]
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then
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if [ -z "$ip_network" ]
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then
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ip_network="wan"
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fi
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scan_interfaces
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config_load /var/state/network
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config_get ip_interface $ip_network ifname
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fi
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current_ip='';
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if [ "$ip_source" = "network" ] || [ "$ip_source" = "interface" ]
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then
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current_ip=$(ifconfig $ip_interface | grep -o 'inet addr:[0-9.]*' | grep -o "$ip_regex")
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else
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# get ip from web
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# we check each url in order in ip_url variable, and if no ips are found we use dyndns ip checker
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# ip is set to FIRST expression in page that matches the ip_regex regular expression
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for addr in $ip_url
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do
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if [ -z "$current_ip" ]
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then
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current_ip=$(echo $( wget -O - $addr 2>/dev/null) | grep -o "$ip_regex")
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fi
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done
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#here we hard-code the dyndns checkip url in case no url was specified
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if [ -z "$current_ip" ]
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then
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current_ip=$(echo $( wget -O - http://checkip.dyndns.org 2>/dev/null) | grep -o "$ip_regex")
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fi
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fi
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echo "$current_ip"
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}
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verbose_echo()
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{
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if [ "$verbose_mode" = 1 ]
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then
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echo $1
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fi
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}
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start_daemon_for_all_ddns_sections()
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{
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SECTIONS=""
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config_cb()
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{
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SECTIONS="$SECTIONS $2"
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}
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config_load "ddns"
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for section in $SECTIONS
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do
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/usr/lib/ddns/dynamic_dns_updater.sh $section 0&
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done
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}
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309
net/ddns-scripts/files/usr/lib/ddns/dynamic_dns_updater.sh
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309
net/ddns-scripts/files/usr/lib/ddns/dynamic_dns_updater.sh
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#!/bin/sh
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# /usr/lib/dynamic_dns/dynamic_dns_updater.sh
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#
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# Written by Eric Paul Bishop, Janary 2008
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# Distributed under the terms of the GNU General Public License (GPL) version 2.0
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#
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# This script is (loosely) based on the one posted by exobyte in the forums here:
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# http://forum.openwrt.org/viewtopic.php?id=14040
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#
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. /usr/lib/ddns/dynamic_dns_functions.sh
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. /usr/lib/ddns/shell_get.sh
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service_id=$1
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if [ -z "$service_id" ]
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then
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echo "ERRROR: You must specify a service id (the section name in the /etc/config/ddns file) to initialize dynamic DNS."
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return 1
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fi
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#default mode is verbose_mode, but easily turned off with second parameter
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verbose_mode="1"
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if [ -n "$2" ]
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then
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verbose_mode="$2"
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fi
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###############################################################
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# Leave this comment here, to clearly document variable names
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# that are expected/possible
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#
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# Now use load_all_config_options to load config
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# options, which is a much more flexible solution.
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#
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#
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#config_load "ddns"
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#
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#config_get enabled $service_id enabled
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#config_get service_name $service_id service_name
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#config_get update_url $service_id update_url
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#
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#
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#config_get username $service_id username
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#config_get password $service_id password
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#config_get domain $service_id domain
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#
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#
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#config_get ip_source $service_id ip_source
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#config_get ip_interface $service_id ip_interface
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#config_get ip_network $service_id ip_network
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#config_get ip_url $service_id ip_url
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#
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#config_get force_interval $service_id force_interval
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#config_get force_unit $service_id force_unit
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#
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#config_get check_interval $service_id check_interval
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#config_get check_unit $service_id check_unit
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#########################################################
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load_all_config_options "ddns" "$service_id"
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#some defaults
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if [ -z "$check_interval" ]
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then
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check_interval=600
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fi
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if [ -z "$check_unit" ]
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then
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check_unit="seconds"
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fi
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if [ -z "$force_interval" ]
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then
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force_interval=72
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fi
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if [ -z "$force_unit" ]
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then
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force_unit="hours"
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fi
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#some constants
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retrieve_prog="/usr/bin/wget --no-check-certificate -O - ";
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if [ -h "/usr/bin/wget" ]
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then
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busybox_wget=$(ls -l /usr/bin/wget | awk ' { if ($0~/busybox/) { print "BUSYBOX"}} ')
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if [ -n "$busybox_wget" ]; then
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retrieve_prog="shell_get"
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fi
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fi
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verbose_echo "retrieve_prog=\"$retrieve_prog\""
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service_file="/usr/lib/ddns/services"
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ip_regex="[0-9]\{1,3\}\.[0-9]\{1,3\}\.[0-9]\{1,3\}\.[0-9]\{1,3\}"
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NEWLINE_IFS='
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'
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#determine what update url we're using if the service_name is supplied
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if [ -n "$service_name" ]
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then
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#remove any lines not containing data, and then make sure fields are enclosed in double quotes
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quoted_services=$(cat $service_file | grep "^[\t ]*[^#]" | awk ' gsub("\x27", "\"") { if ($1~/^[^\"]*$/) $1="\""$1"\"" }; { if ( $NF~/^[^\"]*$/) $NF="\""$NF"\"" }; { print $0 }' )
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#echo "quoted_services = $quoted_services"
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OLD_IFS=$IFS
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IFS=$NEWLINE_IFS
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for service_line in $quoted_services
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do
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#grep out proper parts of data and use echo to remove quotes
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next_name=$(echo $service_line | grep -o "^[\t ]*\"[^\"]*\"" | xargs -r -n1 echo)
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next_url=$(echo $service_line | grep -o "\"[^\"]*\"[\t ]*$" | xargs -r -n1 echo)
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if [ "$next_name" = "$service_name" ]
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then
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update_url=$next_url
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fi
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done
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IFS=$OLD_IFS
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fi
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verbose_echo "update_url=$update_url"
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#if this service isn't enabled then quit
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if [ "$enabled" != "1" ]
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then
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return 0
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fi
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#compute update interval in seconds
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case "$force_unit" in
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"days" )
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force_interval_seconds=$(($force_interval*60*60*24))
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;;
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"hours" )
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force_interval_seconds=$(($force_interval*60*60))
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;;
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"minutes" )
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force_interval_seconds=$(($force_interval*60))
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;;
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"seconds" )
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force_interval_seconds=$force_interval
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;;
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* )
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#default is hours
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force_interval_seconds=$(($force_interval*60*60))
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;;
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esac
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#compute check interval in seconds
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case "$check_unit" in
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"days" )
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check_interval_seconds=$(($check_interval*60*60*24))
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;;
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"hours" )
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check_interval_seconds=$(($check_interval*60*60))
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;;
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"minutes" )
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check_interval_seconds=$(($check_interval*60))
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;;
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"seconds" )
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check_interval_seconds=$check_interval
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;;
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* )
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#default is seconds
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check_interval_seconds=$check_interval
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;;
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esac
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verbose_echo "force seconds = $force_interval_seconds"
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verbose_echo "check seconds = $check_interval_seconds"
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#kill old process if it exists & set new pid file
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if [ -d /var/run/dynamic_dns ]
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then
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#if process is already running, stop it
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if [ -e "/var/run/dynamic_dns/$service_id.pid" ]
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then
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old_pid=$(cat /var/run/dynamic_dns/$service_id.pid)
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test_match=$(ps | grep "^[\t ]*$old_pid")
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verbose_echo "old process id (if it exists) = \"$test_match\""
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if [ -n "$test_match" ]
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then
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kill $old_pid
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fi
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fi
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else
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#make dir since it doesn't exist
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mkdir /var/run/dynamic_dns
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fi
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echo $$ > /var/run/dynamic_dns/$service_id.pid
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#determine when the last update was
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current_time=$(date +%s)
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last_update=$(( $current_time - (2*$force_interval_seconds) ))
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if [ -e "/var/run/dynamic_dns/$service_id.update" ]
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then
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last_update=$(cat /var/run/dynamic_dns/$service_id.update)
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fi
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time_since_update=$(($current_time - $last_update))
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human_time_since_update=$(( $time_since_update / ( 60 * 60 ) ))
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verbose_echo "time_since_update = $human_time_since_update hours"
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registered_ip=$(echo $(nslookup "$domain" 2>/dev/null) | grep -o "Name:.*" | grep -o "$ip_regex")
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#do update and then loop endlessly, checking ip every check_interval and forcing an updating once every force_interval
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while [ true ]
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do
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current_ip=$(get_current_ip)
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current_time=$(date +%s)
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time_since_update=$(($current_time - $last_update))
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verbose_echo "Running IP check..."
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verbose_echo "current system ip = $current_ip"
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verbose_echo "registered domain ip = $registered_ip"
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if [ "$current_ip" != "$registered_ip" ] || [ $force_interval_seconds -lt $time_since_update ]
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then
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verbose_echo "update necessary, performing update ..."
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#do replacement
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final_url=$update_url
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for option_var in $ALL_OPTION_VARIABLES
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do
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replace_name=$(echo "\[$option_var\]" | tr 'a-z' 'A-Z')
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replace_value=$(eval echo "\$$option_var")
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final_url=$(echo $final_url | sed s/"$replace_name"/"$replace_value"/g )
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done
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final_url=$(echo $final_url | sed s/"\[IP\]"/"$current_ip"/g )
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verbose_echo "updating with url=\"$final_url\""
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#here we actually connect, and perform the update
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update_output=$( $retrieve_prog "$final_url" )
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verbose_echo "Update Output:"
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verbose_echo "$update_output"
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verbose_echo ""
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#save the time of the update
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current_time=$(date +%s)
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last_update=$current_time
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time_since_update='0'
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registered_ip=$current_ip
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human_time=$(date)
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verbose_echo "update complete, time is: $human_time"
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echo "$last_update" > "/var/run/dynamic_dns/$service_id.update"
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else
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human_time=$(date)
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human_time_since_update=$(( $time_since_update / ( 60 * 60 ) ))
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verbose_echo "update unnecessary"
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verbose_echo "time since last update = $human_time_since_update hours"
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verbose_echo "the time is now $human_time"
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fi
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#sleep for 10 minutes, then re-check ip && time since last update
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sleep $check_interval_seconds
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||||
done
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#should never get here since we're a daemon, but I'll throw it in anyway
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return 0
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||||
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||||
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||||
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29
net/ddns-scripts/files/usr/lib/ddns/services
Normal file
29
net/ddns-scripts/files/usr/lib/ddns/services
Normal file
@ -0,0 +1,29 @@
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# This file contains the update urls for various dynamic dns services.
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||||
# Column one contains the service name, column two contains the update url.
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||||
# within the update url there are 4 variables you can use: [USERNAME],
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# [PASSWORD], [DOMAIN] and [IP]. These are substituted for the username,
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||||
# password, and domain name specified in the /etc/config/ddns file when an
|
||||
# update is performed. The IP is substituted for the current ip address of the
|
||||
# router. These variables are case sensitive, while urls generally are not, so
|
||||
# if you need to enter the same text in the url (which seems very unlikely) put
|
||||
# that text in lowercase, while the variables should remain in uppercase
|
||||
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||||
"dyndns.org" "http://[USERNAME]:[PASSWORD]@members.dyndns.org/nic/update?hostname=[DOMAIN]&myip=[IP]"
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||||
"changeip.com" "http://[USERNAME]:[PASSWORD]@nic.changeip.com/nic/update?u=[USERNAME]&p=[PASSWORD]&cmd=update&hostname=[DOMAIN]&ip=[IP]"
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"zoneedit.com" "http://[USERNAME]:[PASSWORD]@http://dynamic.zoneedit.com/auth/dynamic.html?host=[DOMAIN]&dnsto=[IP]"
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||||
#noip is an alias of no-ip, so allow both names for the same service
|
||||
"no-ip.com" "http://dynupdate.no-ip.com/ducupdate.php?username=[USERNAME]&pass=[PASSWORD]&h[]=[DOMAIN]&ip=[IP]"
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"noip.com" "http://dynupdate.no-ip.com/ducupdate.php?username=[USERNAME]&pass=[PASSWORD]&h[]=[DOMAIN]&ip=[IP]"
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||||
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||||
#freedns.afraid.org is weird, you just need an update code, for which we use the password variable
|
||||
"freedns.afraid.org" "http://freedns.afraid.org/dynamic/update.php?[PASSWORD]"
|
||||
|
||||
|
||||
#### ADD YOURS HERE! ######################################################################################
|
||||
# #
|
||||
# There are TONS of dynamic dns services out there. There's a huge list of them at: #
|
||||
# http://www.dmoz.org/Computers/Software/Internet/Servers/Address_Management/Dynamic_DNS_Services/ #
|
||||
# If anyone has time they could update this file to be compatible with a bunch of them #
|
||||
# #
|
||||
###########################################################################################################
|
||||
126
net/ddns-scripts/files/usr/lib/ddns/shell_get.sh
Normal file
126
net/ddns-scripts/files/usr/lib/ddns/shell_get.sh
Normal file
@ -0,0 +1,126 @@
|
||||
#######################################################################
|
||||
#/usr/lib/ddns/shell_get.sh
|
||||
#
|
||||
# Written by Eric Bishop, January 2008
|
||||
# Distributed under the terms of the GNU General Public License (GPL) version 2.0
|
||||
#
|
||||
# This implements a wget-like program ("shell_get 1.0") that can handle
|
||||
# basic http username/password authentication.
|
||||
# It is implemented using the netcat (nc) utility.
|
||||
# This is necessary because the default busybox wget
|
||||
# does not include username/password functionality (it really sucks)
|
||||
##########################################################################
|
||||
|
||||
to_ascii()
|
||||
{
|
||||
dec=$1
|
||||
hex=""
|
||||
if [ $dec -lt 26 ]; then
|
||||
hex=$(($dec + 0x41))
|
||||
elif [ $dec -ge 26 ] && [ $dec -lt 52 ]; then
|
||||
hex=$(( ($dec-26) + 0x61))
|
||||
elif [ $dec -ge 52 ] && [ $dec -lt 62 ]; then
|
||||
hex=$(( ($dec-52) + 0x30))
|
||||
elif [ $dec -eq 62 ]; then
|
||||
hex=43
|
||||
else
|
||||
hex=47
|
||||
fi
|
||||
printf "%x" $hex
|
||||
}
|
||||
|
||||
encode_base64()
|
||||
{
|
||||
original_str=$1
|
||||
|
||||
hex_str=$( echo -n "$original_str" | hexdump -v | awk '{ for ( i = 2; i <= NF; i++ ) { h1=substr($i, 3, 2); h2=substr($i,0,2); printf("%s%s", h1, h2); }}' | awk ' { $0~gsub(/00$/, "") };{ i=1; while(i <= length($0) ){ block= substr($0, i, 3); printf("%s ", block); i=i+3; }}' | awk ' {$0~gsub(/ $/, "")}; { print $0 }' )
|
||||
|
||||
length=$(echo $hex_str | awk '{$0~gsub(/ /, "")}; { print length($0) }')
|
||||
remainder=$(($length % 3 ))
|
||||
if [ $remainder -eq 1 ]; then
|
||||
hex_str=$hex_str'00'
|
||||
elif [ $remainder -eq 2 ]; then
|
||||
hex_str=$hex_str'0'
|
||||
fi
|
||||
|
||||
|
||||
|
||||
|
||||
base_64_str=""
|
||||
for hex_block in $hex_str
|
||||
do
|
||||
char1=$(to_ascii $((0x$hex_block / 64)))
|
||||
char2=$(to_ascii $((0x$hex_block % 64)))
|
||||
base_64_str=$(printf "$base_64_str\x$char1\x$char2")
|
||||
done
|
||||
|
||||
|
||||
if [ $remainder -eq 1 ]; then
|
||||
base_64_str=$(echo "$base_64_str" | awk '{ $0~gsub(/A$/, "=");} { print $0 }' )
|
||||
elif [ $remainder -eq 2 ]; then
|
||||
base_64_str=$(echo "$base_64_str==")
|
||||
fi
|
||||
|
||||
|
||||
echo $base_64_str
|
||||
}
|
||||
|
||||
shell_get()
|
||||
{
|
||||
full_url=$1
|
||||
|
||||
protocol_str=$(echo $full_url | awk ' BEGIN {FS="://"} { if($0~/:\/\//)print $1 }')
|
||||
if [ "$protocol_str" != "http" ] && [ -n "$protocol_str" ] ; then
|
||||
echo "protocol = $protocol_str"
|
||||
echo "Error, unsupported Protocol"
|
||||
echo "Only http connections are supported at this time"
|
||||
return 1;
|
||||
fi
|
||||
|
||||
|
||||
if [ -n "$protocol_str" ] ; then
|
||||
full_url=$(echo $full_url | awk ' {$0~gsub(/http:\/\//, "")}; {print $0}')
|
||||
fi
|
||||
|
||||
|
||||
|
||||
user_pass=$(echo $full_url | awk ' BEGIN {FS="@"}; { if( $0~/@/ && $1~/^[^\?\/]+:[^\?\/]+$/ ) print $1 }')
|
||||
host_and_args=""
|
||||
if [ -n "$user_pass" ]; then
|
||||
host_and_args=$(echo $full_url | awk ' $0~gsub(/^[^@]+@/, "") {print $0}')
|
||||
else
|
||||
host_and_args="$full_url"
|
||||
fi
|
||||
|
||||
host_name=$(echo $host_and_args | awk ' BEGIN {FS="[:?/]"}; {print $1};')
|
||||
port_num=$(echo $host_and_args | awk ' BEGIN {FS="[?/]"}; { if($1~/:/){$1~gsub(/.*:/, ""); print $1;}else {print "80"}};')
|
||||
|
||||
path=$(echo $host_and_args | awk ' { $0~gsub(/^[^\?\/]+/, "")}; {print $0};')
|
||||
path_start_test=$(echo "$path" | grep "^/")
|
||||
if [ -z "$path_start_test" ]; then
|
||||
path="/$path"
|
||||
fi
|
||||
|
||||
|
||||
#echo "full_url=\"$full_url\""
|
||||
#echo "user_pass=\"$user_pass\""
|
||||
#echo "host_name=\"$host_name\""
|
||||
#echo "port_num=\"$port_num\""
|
||||
#echo "path=\"$path\""
|
||||
|
||||
|
||||
retrieved_data=""
|
||||
if [ -n "$user_pass" ]; then
|
||||
auth_str=$(encode_base64 "$user_pass" )
|
||||
#echo -e "GET $path HTTP/1.0\nHost: $host_name\nAuthorization: Basic $auth_str\nUser-Agent: shell_get 1.0\n\n"
|
||||
retrieved_data=$(echo -e "GET $path HTTP/1.0\nHost: $host_name\nAuthorization: Basic $auth_str\nUser-Agent: shell_get 1.0\n\n" | nc "$host_name" $port_num | cat)
|
||||
|
||||
else
|
||||
#echo -e "GET $path HTTP/1.0\nHost: $host_name\nUser-Agent: shell_get 1.0\n\n"
|
||||
retrieved_data=$(echo -e "GET $path HTTP/1.0\nHost: $host_name\nUser-Agent: shell_get 1.0\n\n" | nc "$host_name" $port_num | cat)
|
||||
fi
|
||||
|
||||
echo -e "$retrieved_data"
|
||||
|
||||
}
|
||||
|
||||
Reference in New Issue
Block a user