...
SSLCertificateFile    /vol1/seafile/ssl/cacert.pem
SSLCertificateKeyFile /vol1/seafile/ssl/privkey.pem

FastCGIExternalServer /vol1/seafile/seafile-server-2.0.1/seahub/seahub.fcgi -host 127.0.0.1:8000

DocumentRoot /vol1/seafile/seafile-server-2.0.1/seahub
Alias /media /vol1/seafile/seafile-server-2.0.1/seahub/media
RewriteEngine On
RewriteRule ^/(media.*)$ /$1 [QSA,L,PT]
RewriteCond %{REQUEST_FILENAME} !-f
RewriteRule ^(.*)$ /seahub.fcgi/$1 [QSA,L,E=HTTP_AUTHORIZATION:%{HTTP:Authorization}]
...