django-orchestra/orchestra/contrib/webapps/backends/moodle.py

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import os
import textwrap
from django.utils.translation import gettext_lazy as _
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from orchestra.contrib.orchestration import ServiceController, replace
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from django.template import Template, Context
from orchestra.settings import NEW_SERVERS
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from .. import settings
from . import WebAppServiceMixin
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class MoodleController(WebAppServiceMixin, ServiceController):
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"""
Installs the latest version of Moodle available on download.moodle.org
"""
verbose_name = _("Moodle")
model = 'webapps.WebApp'
default_route_match = "webapp.type == 'moodle-php'"
doc_settings = (settings,
('WEBAPPS_DEFAULT_MYSQL_DATABASE_HOST',)
)
def save(self, webapp):
context = self.get_context(webapp)
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perms = Template(textwrap.dedent("""\
{% if sftpuser %}
chown -R {{sftpuser}}:{{sftpuser}} {{home}}/webapps/{{app_name}}
{% else %}
chown -R {{user}}:{{group}} {{home}}/webapps/{{app_name}}
{% endif %}
"""
))
linenohub = Template(textwrap.dedent("""\
{% if sftpuser %}
nohup su - {{sftpuser}} --shell /bin/bash << 'EOF' > $stdout 2> $stderr &
{% else %}
nohup su - {{user}} --shell /bin/bash << 'EOF' > $stdout 2> $stderr &
{% endif %}
"""
))
context.update({'perms' : perms.render(Context(context)), 'linenohub' : linenohub.render(Context(context)) })
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self.append(textwrap.dedent("""\
if [[ $(ls "%(app_path)s" | wc -l) -gt 1 ]]; then
echo "App directory not empty." 2> /dev/null
exit 0
fi
mkdir -p %(app_path)s
# Prevent other backends from writting here
touch %(app_path)s/.lock
# Weekly caching
mkdir %(cms_cache_dir)s &> /dev/null || true
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moodle_date=$(date -r $(readlink %(cms_cache_dir)s/moodle) +%%s || echo 0)
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if [[ $moodle_date -lt $(($(date +%%s)-7*24*60*60)) ]]; then
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moodle_url=$(wget https://download.moodle.org/releases/latest/ -O - -q \\
| tr ' ' '\\n' \\
| grep 'moodle-latest.*.tgz"' \\
| sed -E 's#href="([^"]+)".*#\\1#' \\
| head -n 1 \\
| sed "s#download.php/#download.php/direct/#")
filename=${moodle_url##*/}
wget $moodle_url -O - --no-check-certificate \\
| tee %(cms_cache_dir)s/$filename \\
| tar -xzvf - -C %(app_path)s --strip-components=1
rm -f %(cms_cache_dir)s/moodle
ln -s %(cms_cache_dir)s/$filename %(cms_cache_dir)s/moodle
else
tar -xzvf %(cms_cache_dir)s/moodle -C %(app_path)s --strip-components=1
fi
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# mkdir %(app_path)s/moodledata && {
# chmod 750 %(app_path)s/moodledata
# echo -n 'order deny,allow\\ndeny from all' > %(app_path)s/moodledata/.htaccess
# }
mkdir %(home)s/webapps/%(app_name)s/moodledata && {
chmod 750 %(home)s/webapps/%(app_name)s/moodledata
echo -n 'order deny,allow\\ndeny from all' > %(home)s/webapps/%(app_name)s/moodledata/.htaccess
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}
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if [[ ! -e %(app_path)s/config.php ]]; then
cp %(app_path)s/config-dist.php %(app_path)s/config.php
sed -i "s#dbtype\s*= '.*#dbtype = '%(db_type)s';#" %(app_path)s/config.php
sed -i "s#dbhost\s*= '.*#dbhost = '%(db_host)s';#" %(app_path)s/config.php
sed -i "s#dbname\s*= '.*#dbname = '%(db_name)s';#" %(app_path)s/config.php
sed -i "s#dbuser\s*= '.*#dbuser = '%(db_user)s';#" %(app_path)s/config.php
sed -i "s#dbpass\s*= '.*#dbpass = '%(password)s';#" %(app_path)s/config.php
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sed -i "s#dataroot\s*= '.*#dataroot = '%(home)s/webapps/%(app_name)s/moodledata';#" %(app_path)s/config.php
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sed -i "s#wwwroot\s*= '.*#wwwroot = '%(www_root)s';#" %(app_path)s/config.php
fi
rm %(app_path)s/.lock
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# chown -R %(user)s:%(group)s %(app_path)s
%(perms)s
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# Run install moodle cli command on the background, because it takes so long...
stdout=$(mktemp)
stderr=$(mktemp)
%(linenohub)s
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php -d max_input_vars=5000 %(app_path)s/admin/cli/install_database.php \\
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--fullname="%(site_name)s" \\
--shortname="%(site_name)s" \\
--adminpass="%(password)s" \\
--adminemail="%(email)s" \\
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--agree-license
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EOF
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pid=$!
sleep 2
if ! ps -p $pid > /dev/null; then
cat $stdout
cat $stderr >&2
exit_code=$(wait $pid)
fi
rm $stdout $stderr
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""") % context
)
def get_context(self, webapp):
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context = super(MoodleController, self).get_context(webapp)
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contents = webapp.content_set.all()
context.update({
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'db_type': 'mariadb',
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'db_name': webapp.data['db_name'],
'db_user': webapp.data['db_user'],
'password': webapp.data['password'],
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'db_host': 'localhost' if webapp.target_server.name in NEW_SERVERS else settings.WEBAPPS_DEFAULT_MYSQL_DATABASE_HOST,
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'email': webapp.account.email,
'site_name': "%s Courses" % webapp.account.get_full_name(),
'cms_cache_dir': os.path.normpath(settings.WEBAPPS_CMS_CACHE_DIR),
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'www_root': contents[0].website.get_absolute_url() if contents else 'http://empty',
'sftpuser': webapp.sftpuser.username if webapp.target_server.name in NEW_SERVERS else None ,
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})
return replace(context, '"', "'")