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40 lines
1.9 KiB
40 lines
1.9 KiB
#!/bin/bash
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# author: phga
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# date: 2020-07-28
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# desc: Script to fetch grades from primuss...Not more, not less
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DEST="https://www3.primuss.de/cgi-bin/login/index.pl?FH=fhin"
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NOTEN="https://www3.primuss.de/cgi-bin/pg_Notenbekanntgabe/index.pl"
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SHIBBLE="https://www3.primuss.de/Shibboleth.sso/SAML2/POST"
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FU="https://www3.primuss.de/cgi-bin/pg_Notenbekanntgabe/showajax.pl"
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USERNAME=phg0107
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PASSWORD=lelelele
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TMPPATH=$(mktemp -d)
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FINALFILE=/some/path/to/result.txt
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COOKIES=$TMPPATH/.cookies
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HEADERS=$TMPPATH/.headers
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curl -s -L -c $COOKIES -D $HEADERS "$DEST" > /dev/null
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LOGIN=$(cat $HEADERS | rg -o -e "Location: (.*)" -r '$1' | tail -1 | sed 's/\;.*?/?/')
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# Remove trailing \r
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LOGIN=${LOGIN%$'\r'}
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# This was quite helpful to look at the POST data and headers sent by client
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# --trace-ascii stdout
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# The param format and -d option were super crucial for this shit to work
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VALS=($(curl -s -b $COOKIES -c $COOKIES -d "j_username=$USERNAME&j_password=$PASSWORD&_eventId_proceed=" $LOGIN | rg -o -e 'value="(.*)"' -r '$1'))
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RELAYSTATE=$(echo ${VALS[0]} | sed 's/:/%3A/g')
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# OIDDDAAAA die Plus-Zeichen eyyyy >:(
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SAMLRESP=$(echo ${VALS[1]} | sed 's/=/%3D/g' | sed 's/+/%2B/g')
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SESSION=$(curl -L -s -b $COOKIES -c $COOKIES -d "RelayState=$RELAYSTATE&SAMLResponse=$SAMLRESP" $SHIBBLE | rg -o -e 'name="Session" value="(.*)"' -r '$1' | head -1)
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AJAXDATA=$(curl -s -b $COOKIES -c $COOKIES -d "User=$USERNAME&Session=$SESSION&Language=de&FH=fhin&Portal=1" $NOTEN | rg -o -e 'data: *"(.*)"' -r '$1' | head -1)
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# Finally...
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cp $FINALFILE $TMPPATH
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curl -s -b $COOKIES -c $COOKIES -d $AJAXDATA $FU | awk 'f{ if (/<\/tbody>/){printf "%s", buf; f=0; buf=""} else buf = buf $0 ORS}; /<tbody>/{f=1}' | rg -o -e '<b>(.*)</b>' -r '$1' | sudo -u http tee $FINALFILE
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# If there is a change in the file, send an email
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D=$(diff $FINALFILE $TMPPATH/noten.html)
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if [ "$D" != "" ]; then
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cat $FINALFILE | mail -s "NEUE NOTEN" meine@mail.de
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fi
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rm -rf $TMPPATH |