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author | Mickaël Rémond <mremond@process-one.net> | 2019-05-25 11:21:30 +0200 |
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committer | GitHub <noreply@github.com> | 2019-05-25 11:21:30 +0200 |
commit | b90fe4c5c93e9196b87d6ef2af1df76c5e08423b (patch) | |
tree | 409b49fae7041e1c4993487bc824790fac1fe020 /tools | |
parent | Fix last commit (diff) |
Improve captcha.sh script documentation
Diffstat (limited to 'tools')
-rwxr-xr-x | tools/captcha.sh | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/tools/captcha.sh b/tools/captcha.sh index 560a048a..9fa4a52c 100755 --- a/tools/captcha.sh +++ b/tools/captcha.sh @@ -1,5 +1,18 @@ #!/bin/sh +# This script is an example captcha script. +# It takes the text to recognize in the captcha image as a parameter. +# It return the image binary as a result. ejabberd support PNG, JPEG and GIF. + +# The whole idea of the captcha script is to let server admins adapt it to +# their own needs. The goal is to be able to make the captcha generation as +# unique as possible, to make the captcha challenge difficult to bypass by +# a bot. +# Server admins are thus supposed to write and use their own captcha generators. + +# This script relies on ImageMagick. +# It is NOT compliant with ImageMagick forks like GraphicsMagick. + INPUT=$1 if test -n ${BASH_VERSION:-''} ; then |