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authorRichard van der Hoff <richard@matrix.org>2016-12-03 13:08:53 +0000
committerRichard van der Hoff <richard@matrix.org>2016-12-03 13:08:53 +0000
commit59984e9f5872348e709fd52a729084b722bf8828 (patch)
treeb79d0ef4b9f00385a442527eb098f1e9d7413dd4 /docs/CAPTCHA_SETUP.rst
parentMerge pull request #1664 from kyrias/preview-url-resource-encoding (diff)
parentMerge pull request #1667 from matrix-org/rav/update_readme (diff)
downloadsynapse-59984e9f5872348e709fd52a729084b722bf8828.tar.xz
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+Captcha can be enabled for this home server. This file explains how to do that.
+The captcha mechanism used is Google's ReCaptcha. This requires API keys from Google.
+
+Getting keys
+------------
+Requires a public/private key pair from:
+
+https://developers.google.com/recaptcha/
+
+
+Setting ReCaptcha Keys
+----------------------
+The keys are a config option on the home server config. If they are not
+visible, you can generate them via --generate-config. Set the following value::
+
+  recaptcha_public_key: YOUR_PUBLIC_KEY
+  recaptcha_private_key: YOUR_PRIVATE_KEY
+
+In addition, you MUST enable captchas via::
+
+  enable_registration_captcha: true
+
+Configuring IP used for auth
+----------------------------
+The ReCaptcha API requires that the IP address of the user who solved the
+captcha is sent. If the client is connecting through a proxy or load balancer,
+it may be required to use the X-Forwarded-For (XFF) header instead of the origin
+IP address. This can be configured as an option on the home server like so::
+
+  captcha_ip_origin_is_x_forwarded: true