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comparediffs seems to be working nicely
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Scott Morrison
parent
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commit
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2
.gitignore
vendored
2
.gitignore
vendored
@ -15,4 +15,4 @@ pdfparanoia.egg-info/
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/*.pdf
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# temporary pdfs in tests/diff/
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tests/diff/*.pdf
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tests/diff/pdf
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@ -1,23 +1,68 @@
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for url in `cat urls`; do
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echo "Retrieving $url";
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# TODO allow customizing the proxies, or more generally the retrieval mechanisms
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# TODO allow local caching
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curl --socks localhost:1080 $url > 1.pdf
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curl --socks localhost:1083 $url > 2.pdf
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# TODO verify that we actually obtained pdfs
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if diff 1.pdf 2.pdf; then
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echo "PDFs are identical already, no need to use pdfparanoia"
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else
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cat 1.pdf | pdfparanoia > 1.cleaned.pdf
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cat 2.pdf | pdfparanoia > 2.cleaned.pdf
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if diff 1.cleaned.pdf 2.cleaned.pdf; then
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echo "pdfparanoia successful scrubbed the PDFs"
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else
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echo "pdfparanoia failed!"
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fi
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rm 1.cleaned.pdf
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rm 2.cleaned.pdf
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if [ "$#" != "2" ]; then
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echo "Please supply the addresses of two SOCKS proxies:"
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echo "compare host1:port1 host2:port2"
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exit 1
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fi
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proxy1="$1"
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proxy2="$2"
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curl -s --socks $proxy1 http://google.com | grep "The document has moved" > /dev/null
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if [ "$?" != "0" ]; then
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echo "SOCKS proxy $proxy1 doesn't seem to be working."
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exit 2
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fi
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curl -s --socks $proxy2 http://google.com | grep "The document has moved" > /dev/null
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if [ "$?" != "0" ]; then
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echo "SOCKS proxy $proxy2 doesn't seem to be working."
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exit 3
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fi
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echo "--------------------------------------------------------------------------------------------------------------------------------"
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echo "Comparing PDFs downloaded via '$proxy1' and '$proxy2'"
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echo "Please enter URLs, one per line."
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echo
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echo "PDFs which still differ after pdfparanoia will be left in the pdf/ subdirectory, with suffixes .1.cleaned.pdf and .2.cleaned.pdf"
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echo "--------------------------------------------------------------------------------------------------------------------------------"
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echo
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mkdir -p pdf
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while read url; do
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hash=`echo $url | openssl sha1 | cut -d ' ' -f 2`
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echo "Retrieving $url, with hash $hash";
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if [ ! -s pdf/$hash.1.pdf ]; then
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curl --socks $proxy1 -L --cookie cookie.jar -A "Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; Trident/5.0)" -H "Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8" $url > pdf/$hash.1.pdf
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fi
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rm 1.pdf
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rm 2.pdf
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if [ "`head -c 4 pdf/$hash.1.pdf`" == "%PDF" ]; then
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if [ ! -s pdf/$hash.2.pdf ]; then
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curl --socks $proxy2 -L --cookie cookie.jar -A "Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; Trident/5.0)" -H "Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8" $url > pdf/$hash.2.pdf
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fi
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if [ "`head -c 4 pdf/$hash.2.pdf`" == "%PDF" ]; then
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if cmp -s pdf/$hash.1.pdf pdf/$hash.2.pdf; then
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echo "PDFs are identical already, no need to use pdfparanoia"
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else
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echo "PDFs differ, running pdfparanoia"
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if [ ! -s pdf/$hash.1.cleaned.pdf ]; then
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cat pdf/$hash.1.pdf | pdfparanoia > pdf/$hash.1.cleaned.pdf
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fi
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if [ ! -s pdf/$hash.2.cleaned.pdf ]; then
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cat pdf/$hash.2.pdf | pdfparanoia > pdf/$hash.2.cleaned.pdf
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fi
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if cmp -s pdf/$hash.1.cleaned.pdf pdf/$hash.2.cleaned.pdf; then
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echo "pdfparanoia successful scrubbed the PDFs"
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rm pdf/$hash.*.cleaned.pdf
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else
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echo "pdfparanoia failed!"
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fi
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fi
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else
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echo "Download failed from source 2"
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rm pdf/$hash.*.pdf
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fi
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else
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echo "Download failed from source 1"
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rm pdf/$hash.*.pdf
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fi
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echo
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done
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@ -1,8 +1,6 @@
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http://link.springer.com/content/pdf/10.1007/s00440-011-0397-9
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http://msp.org/apde/2012/5-2/apde-v5-n2-p07-s.pdf
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http://annals.math.princeton.edu/wp-content/uploads/annals-v176-n2-p11-s.pdf
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http://www.ams.org/journals/mcom/2012-81-278/S0025-5718-2011-02542-1/S0025-5718-2011-02542-1.pdf
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http://nyjm.albany.edu/j/2009/15-14p.pdf
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http://link.springer.com/content/pdf/10.1007/s00440-011-0397-9
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http://www.worldscientific.com/doi/pdf/10.1142/S2010326311500018
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http://www.sciencedirect.com/science?_ob=MiamiImageURL&_cid=272585&_user=994540&_pii=S0001870812001806&_check=y&_origin=article&_zone=toolbar&_coverDate=10-Sep-2012&view=c&originContentFamily=serial&wchp=dGLzVlt-zSkWb&md5=bfeb5e0619d45362640529aff02baeda&pid=1-s2.0-S0001870812001806-main.pdf
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http://www.ams.org/journals/mcom/2012-81-278/S0025-5718-2011-02542-1/S0025-5718-2011-02542-1.pdf
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http://www.ems-ph.org/journals/show_pdf.php?issn=1661-7207&vol=5&iss=2&rank=6
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http://nyjm.albany.edu/j/2009/15-14p.pdf
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2
tests/diff/urls.denied
Normal file
2
tests/diff/urls.denied
Normal file
@ -0,0 +1,2 @@
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http://msp.org/apde/2012/5-2/apde-v5-n2-p07-s.pdf
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http://www.ems-ph.org/journals/show_pdf.php?issn=1661-7207&vol=5&iss=2&rank=6
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