/[scripts]/trunk/webthumb
This is repository of my old source code which isn't updated any more. Go to git.rot13.org for current projects!
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Contents of /trunk/webthumb

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Revision 60 - (show annotations)
Wed Feb 6 19:48:56 2008 UTC (13 years, 8 months ago) by dpavlin
File size: 4010 byte(s)
- use Xvfb instead of vncserver, check if it's installed
- commented out debugging Xnest
- create clean profile for each screenshot
- kill browser and than X server to work-around firefox session saver

1 #!/bin/sh
2 #
3 # This script is based on work of mendel from
4 # http://www.lafferty.ca/software/webshots/webshot
5 # webshot: hackish thing to take a picture of a whole webpage.
6 #
7 # idea from sippey (http://www.sippey.com/2004/blog-snaps/)
8 # inspiration from bradfitz
9 #
10 # usage: webshot url filename
11 #
12 # JPEG seems to be the best format.
13 #
14 # Modified by Dobrica Pavlinusic 2004-07-25
15 # - include signal grabbing
16 # - dynamic vncserver display
17 # - correct WindowID parsing
18 # - wait for browser to load full page (useful on slow links)
19 #
20 # It will need follwing external utilities:
21 # vncserver
22 # mozilla-firefox
23 # HEAD (part or LWP perl library, it can be commented out)
24 # nc (netcat, to simulate web server)
25 # xwininfo (standard part of X-clients)
26 # xwit (not so standard command, but very useful)
27 # import (part of ImageMagick package)
28 #
29 # It will create snapshot of following size
30 W=1024
31 H=768
32
33 # and then resize it to (comment out to disable)
34 #RESIZE=200x
35
36 # some configurable paths
37 BROWSER=mozilla-firefox
38 XSERVER=Xvfb
39 XWIT=xwit
40 URL=$1
41 FILE=${2:-screenshot.jpg}
42
43 FRAMESET="`mktemp`.html"
44 PROFILE_DIR=`mktemp -d`
45 PORT=8888
46
47 if [ -z "$URL" ] ; then
48 echo "usage: $0 http://url.to.capture [screenshot.jpg]"
49 exit 1
50 fi
51
52 if [ -z "`which $XWIT`" ] ; then
53 echo "$0 really need $XWIT to operate. please install it."
54 exit 1
55 fi
56
57 if [ -z "`which $XSERVER`" ] ; then
58 echo "$0 really need $XSERVER to operate. please install it."
59 exit 1
60 fi
61
62 echo -n "testing URL $URL "
63 if HEAD $URL >/dev/null ; then
64 echo "ok"
65 else
66 echo "FAILED"
67 exit 1
68 fi
69
70 echo "starting X server $XSERVER"
71
72 export DISPLAY=:42
73
74 $XSERVER -ac -screen 0 ${W}x${H}x24 $DISPLAY &
75 # debug server
76 #Xnest -display :0 -ac -geometry ${W}x${H} -depth 24 $DISPLAY &
77
78 XSERVER_PID=$!
79 echo "using pid $xserver_pid for X server"
80
81 function kill_x_server() {
82 kill $BROWSER_PID
83 kill $XSERVER_PID
84 rm -f $FRAMESET
85 rm -fr $PROFILE_DIR
86 }
87 trap 'echo "QUIT!" >&2; kill_x_server; exit 1' INT QUIT TERM SEGV
88
89 # create frameset to load site and after site is loaded trigger this script
90 cat > $FRAMESET <<END_OF_FRAMESET
91 <html>
92 <head>
93 <frameset rows="0,*" border=0 frameborder=no framespacing=0 onload="window.frames['trigger_frame'].window.location.replace('http://localhost:$PORT');">
94 <frame src="about:blank" name="trigger_frame" scrolling=no marginwidth=0 marginheight=0>
95 <frame src="$URL" name="page_frame" scrolling=no>
96 </frameset>
97 </head>
98 </html>
99 END_OF_FRAMESET
100
101 echo "Using frameset html $FRAMESET"
102
103 echo "preview available with: xwd -display $DISPLAY -root | xwud"
104
105 echo "making 'Screenshot' profile in $PROFILE_DIR"
106 $BROWSER -CreateProfile "Screenshot $PROFILE_DIR" | grep Success
107
108 echo "launching browser $BROWSER with $URL"
109 $BROWSER -P Screenshot -width $W -height $H $FRAMESET &
110 BROWSER_PID=$!
111
112 echo "staring web server (wait for page to load)"
113
114 # there is hard-coded limit here:
115 # we will wait 60sec for page to load and render
116
117 echo -e "HTTP/1.0 304 Not modified\r\n\r\n" | nc -l -w 60 -p $PORT >/dev/null
118
119 # get Mozilla Firefox window id (for resize)
120 WINDOW_ID=`xwininfo -display $DISPLAY -root -tree | grep gecko | cut -d\" -f1 | sort -n | head -1`
121
122 if [ -z "$WINDOW_ID" ] ; then
123 echo "can't find window with name 'Mozilla Firefox'"
124 exit 1
125 fi
126
127 # move window to foreground
128 $XWIT -display $DISPLAY -id $WINDOW_ID -pop
129
130 echo "resizing window $WINDOW_ID to maximum size"
131 $XWIT -display $DISPLAY -id $WINDOW_ID -move 0 0
132 $XWIT -display $DISPLAY -id $WINDOW_ID -resize $W $H
133
134
135 echo -n "wating for browser ping..."
136 while ! ( $BROWSER -remote "ping();" 2>&1 ) >/dev/null ; do
137 echo -n "."
138 sleep 1
139 done
140 echo
141
142 # try to deduce inside area of window
143
144 DUMP_ID=`xwininfo -display $DISPLAY -id $WINDOW_ID -tree | grep 0x | grep -v ${W}x${H} | grep ${W}x | head -1 | sed 's/^ *//' | cut -d' ' -f1`
145
146 if [ -z "$DUMP_ID" ] ; then
147 echo "can't find inside area of window. Using whole browser!"
148 DUMP_ID=$WINDOW_ID
149 fi
150
151 echo "saving window $DUMP_ID to $FILE"
152 if [ ! -z "$RESIZE" ] ; then
153 RESIZE="-geometry $RESIZE"
154 fi
155
156 import -window $DUMP_ID $RESIZE $FILE
157
158 kill_x_server
159

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