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| author | Evgeniy Khramtsov <xramtsov@gmail.com> | 2009-03-13 16:38:28 +0000 |
|---|---|---|
| committer | Evgeniy Khramtsov <xramtsov@gmail.com> | 2009-03-13 16:38:28 +0000 |
| commit | 9aadefa5b031fe4cef4e8d8716b1cee05929b8b0 (patch) | |
| tree | 5134b4496615ae5ffab089c339df389069214e92 /tools | |
| parent | * src/ejabberd_captcha.erl: fixes previous commit (diff) | |
* tools/captcha.sh: sample CAPTCHA script.
SVN Revision: 1993
Diffstat (limited to 'tools')
| -rwxr-xr-x | tools/captcha.sh | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/tools/captcha.sh b/tools/captcha.sh new file mode 100755 index 00000000..2b18d93a --- /dev/null +++ b/tools/captcha.sh @@ -0,0 +1,21 @@ +#!/bin/sh + +SIGN=$(($RANDOM % 2)) + +R1=$(($RANDOM % 20)) +R2=$(($RANDOM % 10 + 40)) + +if [ $SIGN -eq "0" ]; then + S1=$(( -1*($RANDOM % 20 + 50) )) + S2=$(( $RANDOM % 20 + 50 )) +else + S2=$(( -1*($RANDOM % 20 + 50) )) + S1=$(( $RANDOM % 20 + 50 )) +fi + +convert -size 140x60 xc:white \ + -pointsize 30 -draw "text 20,30 '$1'" \ + -roll -$R2+$R1 -swirl $S1 \ + -roll +$R2-$R1 -swirl $S2 \ + +repage -resize 120x60 \ + -quality 90 -depth 8 png:- |