webpage_capture

#!/bin/sh
#
#
# USAGE: webpage_capture [-p widthxheight] [-t widthxheight] [-frame] [-crop] [-full] webURL [outputDir]
#
# OPTIONS:
#
# -p            widthxheight   input page size (width x height); value in pixels, default = 600x400
# -t            widthxheight   thumbnail size (width x height); value in pixels, default = 200x200
#
#
# Output options are -frame, -crop and -full.  You may specify any combination
# -frame        ouput a "framed" thumbnail
# -crop         ouput a "cropped" thumbnail
# -full         ouput a "full" capture, this is the default if neither -crop nor -full are specified
#
# outputDir     default is "web_capture_files"
#
# the program will echo the names of the files created, one per line, in the form
#   full:fileName_x
#   crop:fileName_y
#   frame:fileName_z
#
###
#


#default values
thumbSize="200x200"
pageSize="600x400"
outputDir="web_capture_files"


crop=0
frame=0
full=0




# set up functions to report Usage and Usage with Description
PROGNAME=`type $0 | awk '{print $3}'`  # search for executable on path
PROGDIR=`dirname $PROGNAME`            # extract directory of program
PROGNAME=`basename $PROGNAME`          # base name of program

usage1() 
	{
	echo >&2 ""
	echo >&2 "$PROGNAME:" "$@"
	sed >&2 -n '/^###/q;  /^#/!q;  s/^#//;  s/^ //;  4,$p' "$PROGDIR/$PROGNAME"
	}
	
# function to report error messages
errMsg()
	{
	echo ""
	echo $1
	echo ""
	usage1
	exit 1
	}
	
	
# test for correct number of arguments and get values
if [ $# -eq 0 ]
	then
	# help information
   echo ""
   usage1
   exit 0
elif [ $# -gt 11 ]
	then
	errMsg "--- TOO MANY ARGUMENTS WERE PROVIDED ---"
else
	while [ $# -gt 0 ]
		do
			# get parameter values
			case "$1" in
		  -h|-help)    # help information
					   echo ""
					   usage1
					   exit 0
					   ;;
	 [0-9]*x[0-9]*)    # get size
					   # test size values
					   size="$1"
					   [ "$size" = "" ] && errMsg "SIZE=$size IS NOT A NUMBER"
					   ;;
		 		-p)    # page-size
					   shift  # to get the next parameter - page-size
					   pageSize="$1"
					   ;;
		 		-t)    # thumb-size
					   shift  # to get the next parameter - thumb-size
					   thumbSize="$1"
					   ;;
		 		-full)    # full
					   full=1
					   ;;
		 		-frame)    # frame
					   frame=1
					   ;;
		 		-crop)    # crop
					   crop=1
					   ;;
 				 -)    # STDIN, end of arguments
  				 	   break
  				 	   ;;
				-*)    # any other - argument
					   errMsg "--- UNKNOWN OPTION ---"
					   ;;					   
		     	 *)    # end of arguments
					   break
					   ;;
			esac
			shift   # next option
	done
	#
	# get infile and outfile
	url=$1
	if [ $2 != 0 ]
	  then
	  outputDir=$2
	fi
fi

if [ $frame -eq 0 -a $crop -eq 0 ]
  then
  full=1
fi

echo "thumbSize:$thumbSize"
echo "pageSize:$pageSize"
echo "url:$url"
echo "outputDir:$outputDir"
#echo "full:$full"
#echo "crop:$crop"
#echo "frame:$frame"

#make the output directory
mkdir -p "$outputDir"


# these variable can be modified to suit needs
pageWidth=600
pageHeigh=400

format=png
captureDelay=2000


thumbWidth=200
thumbHheight=200

appDir=`dirname "$0"`

#create a unique-named file for the caputre
captureFile=`mktemp $outputDir/XXXXXXXX.$format`

#captureFile="$outputDir/CLZfk0IJ.png"
#echo "captureFile:$captureFile"

#create the capture
DISPLAY=:1 "$appDir/CutyCapt" --url="$url" --out="$captureFile" --min-width=600 --min-height=400 --plugins=off --delay=$captureDelay

#crop the image to $widthx$height
convert $captureFile -crop "$pageSize"+0+0 $captureFile

framedThumbFile=`dirname $captureFile`/framedThumb_`basename $captureFile`
croppedThumbFile=`dirname $captureFile`/croppedThumb_`basename $captureFile`

# create the framed thumbnail, output name
if [ $frame -eq 1 ] 
  then
  convert "$captureFile" -resize "$thumbSize" -background transparent -gravity center -extent "$thumbSize" "$framedThumbFile" 
  echo "frame:$framedThumbFile"
fi

#create the cropped thumbnail, ouput name
if [ $crop -eq 1 ] 
  then
  $appDir/aspect "$thumbSize" -m crop "$captureFile" "$croppedThumbFile"
  echo "crop:$croppedThumbFile"
fi

#delete the full file, if not needed, otherwise output name
if [ $full -eq 1 ]
  then
  echo "full:$captureFile"
else
  rm $captureFile
fi