170 lines
6.6 KiB
Python
170 lines
6.6 KiB
Python
import textwrap
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from urllib.parse import urlparse
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from django.utils.translation import ugettext_lazy as _
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from orchestra.contrib.orchestration import ServiceController
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from .. import settings
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class MoodleMuBackend(ServiceController):
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"""
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Creates a Moodle site on a Moodle multisite installation
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// config.php
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// map custom domains to sites
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$site_map = array(
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// "<HTTP_HOST>" => ["<SITE_NAME>", "<WWWROOT>"],
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);
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$site = getenv("SITE");
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if ( $site == '' ) {
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$http_host = $_SERVER['HTTP_HOST'];
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if (array_key_exists($http_host, $site_map)) {
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$site = $site_map[$http_host][0];
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$wwwroot = $site_map[$http_host][1];
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} elseif (strpos($http_host, '-courses.') !== false) {
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$site = array_shift((explode("-courses.", $http_host)));
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$wwwroot = "https://{$site}-courses.pangea.org";
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} else {
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$site = array_shift((explode(".", $http_host)));
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$wwwroot = "https://{$site}-courses.pangea.org";
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}
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} else {
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$wwwroot = "https://{$site}-courses.pangea.org";
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foreach ($site_map as $key => $value) {
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if ($value[0] == $site) {
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$wwwroot = $value[1];
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break;
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}
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}
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}
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$prefix = str_replace('-', '_', $site);
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$CFG->prefix = "${prefix}_";
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$CFG->wwwroot = $wwwroot;
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$CFG->dataroot = "/home/pangea/moodledata/{$site}/";
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"""
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verbose_name = _("Moodle multisite")
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model = 'saas.SaaS'
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default_route_match = "saas.service == 'moodle'"
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def save(self, webapp):
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context = self.get_context(webapp)
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self.delete_site_map(context)
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if context['custom_url']:
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self.insert_site_map(context)
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self.append(textwrap.dedent("""\
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mkdir -p %(moodledata_path)s
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chown %(user)s:%(user)s %(moodledata_path)s
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export SITE=%(site_name)s
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CHANGE_PASSWORD=0
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php %(moodle_path)s/admin/cli/install_database.php \\
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--fullname="%(site_name)s" \\
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--shortname="%(site_name)s" \\
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--adminpass="%(password)s" \\
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--adminemail="%(email)s" \\
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--non-interactive \\
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--agree-license \\
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--allow-unstable || CHANGE_PASSWORD=1
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""") % context
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)
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if context['password']:
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self.append(textwrap.dedent("""\
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mysql \\
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--host="%(db_host)s" \\
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--user="%(db_user)s" \\
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--password="%(db_pass)s" \\
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--execute='UPDATE %(db_prefix)s_user
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SET password=MD5("%(password)s")
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WHERE username="admin";' \\
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%(db_name)s
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""") % context
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)
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if context['crontab']:
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context['escaped_crontab'] = context['crontab'].replace('$', '\\$')
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self.append(textwrap.dedent("""\
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# Configuring Moodle crontabs
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if ! crontab -u %(user)s -l | grep 'Moodle:"%(site_name)s"' > /dev/null; then
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cat << EOF | su %(user)s --shell /bin/bash -c 'crontab'
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$(crontab -u %(user)s -l)
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# %(banner)s - Moodle:"%(site_name)s"
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%(escaped_crontab)s
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EOF
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fi""") % context
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)
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def delete_site_map(self, context):
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self.append(textwrap.dedent("""\
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sed -i '/^\s*"[^\s]*"\s*=>\s*\["%(site_name)s",\s*".*/d' %(moodle_path)s/config.php
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""") % context
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)
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def insert_site_map(self, context):
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self.append(textwrap.dedent("""\
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regex='\s*\$site_map\s+=\s+array\('
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newline=' "%(custom_domain)s" => ["%(site_name)s", "%(custom_url)s"], // %(banner)s'
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sed -i -r "s#$regex#\$site_map = array(\\n$newline#" %(moodle_path)s/config.php
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""") % context
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)
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def delete(self, saas):
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context = self.get_context(saas)
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self.append(textwrap.dedent("""
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rm -rf %(moodledata_path)s
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# Delete tables with prefix %(db_prefix)s
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mysql -Nrs \\
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--host="%(db_host)s" \\
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--user="%(db_user)s" \\
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--password="%(db_pass)s" \\
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--execute='SET GROUP_CONCAT_MAX_LEN=10000;
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SET @tbls = (SELECT GROUP_CONCAT(TABLE_NAME)
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FROM information_schema.TABLES
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WHERE TABLE_SCHEMA = "%(db_name)s"
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AND TABLE_NAME LIKE "%(db_prefix)s_%%");
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SET @delStmt = CONCAT("DROP TABLE ", @tbls);
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-- SELECT @delStmt;
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PREPARE stmt FROM @delStmt;
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EXECUTE stmt;
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DEALLOCATE PREPARE stmt;' \\
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%(db_name)s
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""") % context
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)
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if context['crontab']:
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context['crontab_regex'] = '\\|'.join(context['crontab'].splitlines())
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context['crontab_regex'] = context['crontab_regex'].replace('*', '\\*')
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self.append(textwrap.dedent("""\
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crontab -u %(user)s -l \\
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| grep -v 'Moodle:"%(site_name)s"\\|%(crontab_regex)s' \\
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| su %(user)s --shell /bin/bash -c 'crontab'
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""") % context
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)
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self.delete_site_map(context)
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def get_context(self, saas):
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context = {
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'banner': self.get_banner(),
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'name': saas.name,
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'site_name': saas.name,
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'full_name': "%s course" % saas.name.capitalize(),
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'moodle_path': settings.SAAS_MOODLE_PATH,
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'user': settings.SAAS_MOODLE_SYSTEMUSER,
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'db_user': settings.SAAS_MOODLE_DB_USER,
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'db_pass': settings.SAAS_MOODLE_DB_PASS,
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'db_name': settings.SAAS_MOODLE_DB_NAME,
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'db_host': settings.SAAS_MOODLE_DB_HOST,
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'db_prefix': saas.name.replace('-', '_'),
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'email': saas.account.email,
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'password': getattr(saas, 'password', None),
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'custom_url': saas.custom_url.rstrip('/'),
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'custom_domain': urlparse(saas.custom_url).netloc if saas.custom_url else None,
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}
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context.update({
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'crontab': settings.SAAS_MOODLE_CRONTAB % context,
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'db_name': context['db_name'] % context,
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'moodledata_path': settings.SAAS_MOODLE_DATA_PATH % context,
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})
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return context
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