Title:           [Bash] something
Author:          someone_
Pastebin link:   http://pastebin.com/13bnUJBn
First Edit:      Wednesday 22nd of August 2012 07:29:18 AM CDT
Last Edit:       Wednesday 22nd of August 2012 07:29:18 AM CDT

#!/system/bin/sh
 
name=`basename $0`
 
usage () {
        echo "$name - 4chan thread downloader"
        echo ""
        echo "Usage: $name [4chan thread URL] <time value and/or return target>"
        echo ""
        echo "  <time value>"
        echo "     1: run script once"
        echo "     Between 9 and 1000: Set the initial"
        echo "      waiting time between runs"
        echo "     Default: 10 seconds"
        echo ""
        echo "  <return target>"
        echo "     Set the target path of the 'Return'"
        echo "      link"
        echo "     Default: ./"
        exit 0
}
 
[ $# -eq 0 ] && usage
 
for arg in $@; do
        urltest=$(echo "$arg" | sed -e "s_^https_http_" | egrep -o "^http://boards.4chan.org/[a-z0-9]+/res/[0-9]+")
        timetest=$(echo "$arg" |egrep "^[0-9]{1,3}$")
        if [ $urltest ]; then
                URL="$urltest"
        elif [ $timetest ]; then
                SLP="$arg"
        else
                RET="$arg"
        fi
done
 
[ ! $URL ] && usage
 
echo "4chan downloader"
 
LOC=$(echo "$URL" | sed 's_.*/\([^/]\+\)/res/\(.\+\)_\1\_\2_')
 
if [ ! $LOC ]; then
        echo "Can't determine the thread's number"
        echo "Use valid URL without hash or search tags"
        echo ""
        usage
fi
 
ST="static.4chan.org"
 
[ ! $SLP ] && SLP="10"
[ ! $RET ] && RET="./"
 
if [ -s /system/build.prop ]; then
        for path in $(echo "$PATH" | sed "s_:_\n_g"); do
                if [ -s ${path}/busybox ]; then
                        alias echo="${path}/busybox echo -ne"
                        alias read="${path}/busybox sh read -n 1 Q"
                        alias sed="${path}/busybox sed"
                        break
                fi
        done
else
        alias echo="echo -ne"
fi
 
SLAP=$SLP
 
NO=$(echo "$LOC" | grep -o '[0-9]\+$')
N="\n"
R="\r"
LM=""
 
thejob () {
        if [ ! -d $LOC ]; then
                mkdir $LOC
        fi
 
        if [ ! -d $LOC/misc ]; then
                mkdir $LOC/misc
        fi
 
        egrep "//.\.thumbs\.4chan\.org/[a-z0-9]+/thumb/[0-9]*s\.jpg" $LOC.html -o | sed 's_^//_http://_g' > $LOC/misc/misc
 
        egrep "//${ST}/image/(spoiler[^\x2E]*\.png|filedeleted-res\.gif|favicon[^\x2E]*\.ico|[a-z]*icon\.gif)" $LOC.html -o | sed 's_^//_http://_g' >> $LOC/misc/misc
 
        egrep "//${ST}/image/country/[a-z]*/?[\w]+\...." $LOC.html -o | sed 's_^//_http://_g' >> $LOC/misc/misc
 
        egrep "//${ST}/css/[a-z]+\.[0-9]+\.css" $LOC.html -o | sed -e 's_^//_http:&_' | head -n1 > $LOC/misc/css
 
        egrep "//${ST}/css/[a-z]+\.[0-9]+\.css" $LOC.html -o | sed -e 's_^//_http:&_' | egrep 'tomorrow|prettify' >> $LOC/misc/css
 
        egrep "//${ST}/image/title/[a-z]+/[0-9a-z]+\.(jpg|png|gif)" $LOC.html -o | sed 's_^//_http://_g' > $LOC/misc/logo
 
        egrep "//images\.4chan\.org/[a-z0-9]+/src/[0-9]*\.(jpg|png|gif)" $LOC.html -o | sed 's_^//_http://_g' > $LOC/images
 
        egrep "^(<!DOCTYPE|<link rel|</head>)" $LOC.html > a
 
        head -n2 a > $LOC.html
 
        cat << EOF >> $LOC.html
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a=b.firstElementChild,c,db=d.body;if(null===b.gA("exp")){s(a,"i-old",a.src);a.gA("style")&&(s(a,"i-olds",a.gA("style")),a.removeAttribute("style"));a.removeAttribute("src");a.src=b.href;s(b,"exp","");}else{a.gA("i-olds")&&(s(a,"style",a.gA("i-olds")),a.removeAttribute("i-olds"));a.src=a.gA("i-old");a.removeAttribute("i-old");b.removeAttribute("exp");c=b.getBoundingClientRect().top;if("i"===db.class){0>c&&(db.scrollTop+=c-42);}else{0>c&&(dE.scrollTop+=c-42);};}}//Hungary is best country</script><style>img[data-md5]+img{max-width:100%!important;}.i img[data-md5]+img{width:100%!important;}.op:after{clear:both;content:'';display:block;}#qp{padding:2px 2px 5px;position:fixed;border:1px solid rgba(128,128,128,0.5);}#qp .post{border:none;margin:0;padding:0;}#qp img{max-height:300px;max-width:500px;}.qphl{outline:2px solid rgba(216,94,49,.7);}.inlined{opacity:.5;}.inline{border:1px solid rgba(128,128,128,0.5);display:table;margin:2px;padding:2px;}.inline .post{background:none;border:none;margin:0;padding:0;}.forwarded{display:none;}.quotelink.forwardlink,.backlink.forwardlink{text-decoration:none;border-bottom:1px dashed;}#ihover{max-height:97%;max-width:75%;padding-bottom:18px;position:fixed;}</style>
EOF
 
        tail -n1 a >> $LOC.html
 
        rm a
 
        sed -i -e '1 s/<script.*$/!>/' -e '2 {s_<script_!>\n&_
                s_<link [^>]*RSS feed[^>]*>__
                s@//'$ST'/image/\(favicon[^\x2E]*\.ico\)@'$LOC'/misc/\1@
                s_<link rel="alternate style[^-]*\(<link[^>]*tomorrow\.[^>]*>\)[^-]*<_\1<_
                s@//'$ST'/css/\([a-z0-9\.]\{1,75\}\.css\)@'$LOC'/misc/\1@g
                s/^/<!/}' -e '$ {s_</head>_<!&_
                s_<div id="boardNavDesktop" class="desktop">_\n_
                s_<div class="boardBanner"_\n<!&_
                s_<hr class="above_\n_
                s_\(<div class="navLinks desktop">.<a href="\.\./\./[^#]*\)#bottom\(">Bottom</a>.\)_\n<!\n<!\1javascript:dE.scrollIntoView(false)\2</div><hr>\n_
                s_\(<form name="delform" id="delform"\)[^>]*_\n<!\1_
                s@//.\.thumbs\.4chan\.org/[^/]*/thumb/\([0-9]*s\.jpg\)@'$LOC'/misc/\1@g
                s@//images\.4chan\.org/[^/]*/src/\([0-9]*\....\)@'$LOC'/\1@g
                s@//'$ST'/image/title/[^/]*/[a-z0-9-]*\.\(...\)@'$LOC'/misc/logo.\1@g
                s@//'$ST'/image/\(spoiler[^\x2E]*\....\)@'$LOC'/misc/\1@g
                s@//'$ST'/image/\(filedeleted-res\.gif\)@'$LOC'/misc/\1@g
                s@//'$ST'/image/country/\([^/]*/\?[^\x2E]*\....\)@'$LOC'/misc/\1@g
                s@//'$ST'/image/\([a-z]*icon.gif\)@'$LOC'/misc/\1@g
                s_\(<a href="\)'$NO'#p_\1#p_g
                s_<a href="#p'$NO'"[^>]*>&gt;&gt;'$NO'_& (OP)_g
                s_\(<a href="[0-9]\+\)\(#p[^>]*>[^<]*\)_\1.html\2 (Cross-thread)_g
                s_\(</div></div></div><hr>\)<div class="mobile"_\1\n_
                s_\(<div class="navLinks navLinksBot desktop">.<a href="\.\./\./"[^>]*>Return</a>. .<a href="\)#top\(">Top</a>.\)_\n<!</form><span style="float:right;">Style: [ <a href="javascript:sT(1);dE.scrollIntoView(false)">Default</a> | <a href="javascript:sT(0);dE.scrollIntoView(false)">Tomorrow</a> ]</span>\1javascript:dE.scrollIntoView()\2\n_
                s@</body>@\n<!</div>&@}' -e '{s:\(<a href="\)\.\./\./\([^>]*>Return</a>\):\1'"$RET"'\2:g
                s_\(<a[^>]*href="\)//_\1http://_g
                s_\(<a[^>]*\) onclick="replyhl[^"]*"_\1_g
                s_\(<a href="javascript:\)quote[^>]*_\1;"_g
                s_<div class="postInfoM_\n_g
                s_<div class="file"_\n<!&_g
                s_<div class="postInfo desktop"_\n<!&_g
                s_<a href="/ic\?/anim\.php?file=[0-9]*" target="\_blank">_<a title="View is supported only on 4chan">_g
                s_\(<input type="checkbox"\)[^>]*_\1_g
                s_<a onclick="toggle..exif[^"]*"_<a_g}' $LOC.html
 
        grep '^<!' $LOC.html > a
 
        sed -i -e '2,$ s_^<!__' a
 
        tr -d '\n' < a > $LOC.html
 
        sed -i -e 's_!>_\n_g' $LOC.html
 
        rm a
 
        # :a;N;$!ba;
 
        cd $LOC
 
        if [ -s a ]; then
                rm $(basename `cat a`) a
        fi
 
        for image in $(cat images); do
                echo $image > a
                wget -q -nc $image
                > a
        done
 
        rm images a
 
        cd misc
 
        if [ -s a ]; then
                rm $(basename `cat a`) a
        fi
 
        for misc in $(cat misc); do
                echo $misc > a
                wget -q -nc $misc
                > a
        done
 
        CSS=$(basename `head -n1 css`)
 
        if [ "$CSSt" != "$CSS" ]; then
                CSSt=CSS
                if [ "$(ls|grep '.css')" ]; then
                        rm *.css
                fi
                wget -q -nc -i css
                wget -q -nc "$(grep -o 'fade-\?[a-z0-9]*\.png' $CSS | sed -e 's_.*_http://'$ST'/image/&_')"
                sed -i -e 's_/image/\(fade[^\x2E]*\.png\)_\1_g' $CSS
        fi
 
        if [ "$(ls|grep logo.)" ]; then
                rm "$(ls|grep logo.)"
        fi
 
        wget -q -i logo -O "logo.$(sed 's_\._\n_g' logo|tail -n1)"
 
        rm misc logo css a
 
        touch .nomedia
 
        cd ../..
}
 
exito () {
        echo "Session completed. Exiting     $N"
        exit 0
}
 
echo "${N}Downloading to $LOC$N${N}------------------------------$N"
 
while true; do
        trap exito 1 2 3 15
 
        stat="$(wget -S --spider "$URL" 2>&1)"
 
        if [ "$(echo "$stat" |grep '404 Not Found')" ]; then
                if [ -s $LOC.html ]; then
                        echo "Thread has 404'd or 4chan is down. Stopping script${N}"
                else
                        echo "Thread does not exist. Stopping script${N}"
                fi
                exit 0
        fi
 
        if [ "$LM" != "$(echo "$stat" |grep Last-Modified)" ]; then
                LM="$(echo "$stat" |grep Last-Modified)"
                SLAP=$SLP
                wget -np -nd -nH -q -erobots=off $URL -O $LOC.html
                thejob
        else
                SLAP=`expr "$SLAP" + "5"`
        fi
 
        trap - 1 2 3 15
 
        if [ $SLP = "1" ]; then
                exito
        fi
 
        echo OK
 
        sleep $SLAP
 
        echo "\b\b  \b\b"
done