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34 lines
1.5 KiB
34 lines
1.5 KiB
#!/bin/sh
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# captive portal auto-login script for bahn hotspots (DE)
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# Copyright (c) 2020-2021 Dirk Brenken (dev@brenken.org)
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# This is free software, licensed under the GNU General Public License v3.
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# set (s)hellcheck exceptions
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# shellcheck disable=1091,3040
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. "/lib/functions.sh"
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export LC_ALL=C
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export PATH="/usr/sbin:/usr/bin:/sbin:/bin"
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set -o pipefail
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trm_domain="wifi.bahn.de"
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trm_useragent="$(uci_get travelmate global trm_useragent "Mozilla/5.0 (Linux x86_64; rv:90.0) Gecko/20100101 Firefox/90.0")"
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trm_maxwait="$(uci_get travelmate global trm_maxwait "30")"
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trm_fetch="$(command -v curl)"
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# get security token
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#
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"${trm_fetch}" --user-agent "${trm_useragent}" --referer "http://www.example.com" --connect-timeout $((trm_maxwait / 6)) --cookie-jar "/tmp/${trm_domain}.cookie" --silent --show-error --output /dev/null "https://${trm_domain}/en/"
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sec_token="$(awk '/csrf/{print $7}' "/tmp/${trm_domain}.cookie" 2>/dev/null)"
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rm -f "/tmp/${trm_domain}.cookie"
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[ -z "${sec_token}" ] && exit 1
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# final post request
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#
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if [ -z "$redirect_url" ]; then
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raw_html="$("${trm_fetch}" --user-agent "${trm_useragent}" --connect-timeout $((trm_maxwait / 6)) --header "Cookie: csrf=${sec_token}" --data "login=true&CSRFToken=${sec_token}" --silent --show-error "https://${trm_domain}/en/")"
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else
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raw_html="$("${trm_fetch}" --user-agent "${trm_useragent}" --connect-timeout $((trm_maxwait / 6)) --header "Cookie: PHPSESSID=${sec_token}" --data "login=true&PHPSESSID=${sec_token}" --silent --show-error "${redirect_url}")"
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fi
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[ -z "${raw_html}" ] && exit 0 || exit 255
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