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53 lines
2.3 KiB
53 lines
2.3 KiB
#!/bin/sh
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# captive portal auto-login script for german DB hotspots via portal login API
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# Copyright (c) 2020 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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trm_domain="wifi.bahn.de"
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trm_useragent="$(uci_get travelmate global trm_useragent "Mozilla/5.0 (Linux x86_64; rv:80.0) Gecko/20100101 Firefox/80.0")"
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trm_maxwait="$(uci_get travelmate global trm_maxwait "30")"
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trm_fetch="$(command -v curl)"
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# initial get request to receive all header information
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#
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"${trm_fetch}" --user-agent "${trm_useragent}" --referer "http://www.example.com" --silent --connect-timeout $((trm_maxwait/6)) --include --cookie-jar "/tmp/${trm_domain}.cookie" --output /dev/null "http://${trm_domain}"
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# extract the session cookie and the hotspot location
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#
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if [ -s "/tmp/${trm_domain}.cookie" ]
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then
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php_token="$(awk 'BEGIN{FS="[ ;]"}/^Set-Cookie:/{print $2}' "/tmp/${trm_domain}.cookie")"
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location="$(awk '/^Location:/{print $2}' "/tmp/${trm_domain}.cookie")"
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rm -f "/tmp/${trm_domain}.cookie"
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else
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exit 2
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fi
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# post request to subscribe to the portal API
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#
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if [ -n "${php_token}" ] && [ -n "${location}" ]
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then
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"${trm_fetch}" --user-agent "${trm_useragent}" --referer "${location}" --silent --connect-timeout $((trm_maxwait/6)) --include --cookie-jar "/tmp/${trm_domain}.cookie" --header "Cookie: ${php_token}" --data "action=subscribe&type=one&connect_policy_accept=false&user_login=&user_password=&user_password_confirm=&email_address=&prefix=&phone=&policy_accept=false&gender=&interests=" --output /dev/null "https://${trm_domain}/portal_api.php"
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else
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exit 3
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fi
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# extract additional login and password information from the portal API
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#
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if [ -s "/tmp/${trm_domain}.cookie" ]
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then
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login="$(awk 'BEGIN{FS="[\"]"}/^\{\"info/{print $12}' "/tmp/${trm_domain}.cookie")"
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password="$(awk 'BEGIN{FS="[\"]"}/^\{\"info/{print $16}' "/tmp/${trm_domain}.cookie")"
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rm -f "/tmp/${trm_domain}.cookie"
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else
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exit 4
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fi
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# final post request to authenticate to the portal API
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#
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if [ -n "${login}" ] && [ -n "${password}" ]
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then
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"${trm_fetch}" --user-agent "${trm_useragent}" --referer "${location}" --silent --connect-timeout $((trm_maxwait/6)) --header "Cookie: ${php_token}" --data "action=authenticate&login=${login}&password=${password}&policy_accept=false&from_ajax=true&wispr_mode=false" "https://${trm_domain}/portal_api.php"
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else
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exit 5
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fi
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