Debian shared

This guide is intended to systems where can be more than one DAViCal installation, and permissions are not open to other users in the system or in Apache websites.

Systems tested:
 * Debian 9
 * See for other Debian versions

Software versions tested:
 * DAViCal 1.1.7
 * PostgreSql 9.6

Install guide
Install HTTP service: sudo apt update sudo apt install task-web-server

Install DAViCal (includes postgresql and php by dependencies): sudo apt --install-recommends install davical davical-doc sudo apt --install-recommends install davical=1.1.7-1~bpo9+1 libawl-php=0.59-1~bpo9+1 davical-doc
 * 1) You can need to specify version if you want latest DAViCal:

Prepare the DAViCal database values DatabaseName=mycaldb DBUsername_dba=mycaluser_dba DBUsername_app=mycaluser_app DBPassword=12345 AdminPassword=1234

Add open permissions temporarily for the installation scripts: MediumPgVersion="$(psql --version | grep -ie "sql" | tr -s " " "\n" | tail --lines=1 | cut -f 1,2 -d ".")" PgConfig="/etc/postgresql/${MediumPgVersion}/main/pg_hba.conf" sudo mv "$PgConfig" "${PgConfig}.davical-bak" sudo cp -a "${PgConfig}.davical-bak" "$PgConfig" echo "# Permissions for the DAViCal CMS" | sudo tee "$PgConfig" echo "local $DatabaseName $DBUsername_dba trust" | sudo tee -a "$PgConfig" echo "local $DatabaseName $DBUsername_app trust" | sudo tee -a "$PgConfig" echo "" | sudo tee -a "$PgConfig" sudo cat "${PgConfig}.davical-bak" | sudo tee -a "$PgConfig" sudo systemctl reload postgresql
 * 1) Service name can be only "postgresql" or more:

Apply a temporary patch to creation script: CScript="/usr/share/davical/dba/create-database.sh" sudo mv "$CScript" "${CScript}.davical-bak" sudo cp -a "${CScript}.davical-bak" "$CScript" cat "${CScript}.davical-bak" | sed -e "s/DBNAME=.*/DBNAME=${DatabaseName}/g" | sed -e "s/AWL_DBAUSER=.*/AWL_DBAUSER=${DBUsername_dba}/g" | sed -e "s/AWL_APPUSER=.*/AWL_APPUSER=${DBUsername_app}/g" | sudo tee "$CScript"

Apply a temporary patch to update script: UScript="/usr/share/davical/dba/update-davical-database" sudo mv "$UScript" "${UScript}.davical-bak" sudo cp -a "${UScript}.davical-bak" "$UScript" cat "${UScript}.davical-bak" | sed -e "s/\$dbname = .*/\$dbname = \"${DatabaseName}\";/g" | sed -e "s/\$dbuser = .*/\$dbuser = \"${DBUsername_dba}\";/g" | sed -e "s/\$appuser = .*/\$appuser = \"${DBUsername_app}\";/g" | sed -e "s/\$dbpass = .*/\$dbpass = \"${DBPassword}\";/g" | sudo tee "$UScript"

(only fresh install) Run main installation script and take note of the shown password for the 'admin' user: sudo su -l postgres -c "$CScript" "$DatabaseName" "$AdminPassword"

(only restoration of a backup) Restore data and run update script: echo "DROP DATABASE IF EXISTS mycaldb;" | sudo su -l postgres -c psql echo "DROP USER IF EXISTS mycaluser_dba;" | sudo su -l postgres -c psql sudo su -l postgres -c "psql --quiet --file mycaluser_dba.pgdump" echo "DROP USER IF EXISTS mycaluser_app;" | sudo su -l postgres -c psql sudo su -l postgres -c "psql --quiet --file mycaluser_app.pgdump" sudo su -l postgres -c "psql --quiet --file mycaldb.pgdump" sudo su -l postgres -c "$UScript"

Restore installation scripts to original: sudo mv "${UScript}.davical-bak" "$UScript" sudo mv "${CScript}.davical-bak" "$CScript"

(only fresh install) Set password authentication for the database: echo "ALTER USER $DBUsername_dba WITH PASSWORD '${DBPassword}';" | sudo su -l postgres -c psql echo "ALTER USER $DBUsername_app WITH PASSWORD '${DBPassword}';" | sudo su -l postgres -c psql

Allow these authenticated access to PostgreSql: echo "# Permissions for the DAViCal CMS" | sudo tee "$PgConfig" echo "local $DatabaseName $DBUsername_dba password" | sudo tee -a "$PgConfig" echo "local $DatabaseName $DBUsername_app password" | sudo tee -a "$PgConfig" echo "" | sudo tee -a "$PgConfig" sudo cat "${PgConfig}.davical-bak" | sudo tee -a "$PgConfig" sudo systemctl reload postgresql
 * 1) Service name can be only "postgresql" or more:

Setup CMS parameters at /etc/davical/config.php
 * Pending to check if package updates overwrite config.php

Create or restore Apache virtualhost with its profile content as in this example:  ServerName	caldav.example.net DocumentRoot	/usr/share/davical/htdocs DirectoryIndex	index.php index.html Alias	/images/ /usr/share/davical/htdocs/images/  AllowOverride None Order allow,deny Allow from all  php_value include_path	/usr/share/awl/inc php_value magic_quotes_gpc	0 php_value magic_quotes_runtime	0 php_value register_globals	0 php_value error_reporting	"E_ALL & ~E_NOTICE" php_value default_charset	"utf-8" php_admin_value open_basedir   /usr/share/davical/:/usr/share/awl/inc/:/etc/davical/  (Apache may need to be configured in ports.conf to listen also ports 8008 and 8800)

Enable Apache website: sudo a2ensite caldav.example.net

Login to DAViCAL Admin
If all is going well you should now be able to browse to the site pages and log in as 'admin' with the password set during installation.

Backup all data
env PGPASSWORD=12345 pg_dump --create --inserts --attribute-inserts --disable-dollar-quoting --username=mycaluser -f "mycaldb.pgdump" mycaldb
 * Database (example for accessing mycaldb with user "mycaluser" and password "12345")

cat /dev/null > mycaluser_dba.pgdump sudo su -l postgres -c "pg_dumpall --roles-only" | grep -e " ROLE mycaluser_dba;" >> mycaluser_dba.pgdump sudo su -l postgres -c "pg_dumpall --roles-only" | grep -e " ROLE mycaluser_dba " >> mycaluser_dba.pgdump cat /dev/null > mycaluser_app.pgdump sudo su -l postgres -c "pg_dumpall --roles-only" | grep -e " ROLE mycaluser_app;" >> mycaluser_app.pgdump sudo su -l postgres -c "pg_dumpall --roles-only" | grep -e " ROLE mycaluser_app " >> mycaluser_app.pgdump
 * PostgreSql users/roles (example for mycaluser_dba + mycaluser_app)

/etc/davical/caldav.example.net-conf.php
 * CMS configuration:

/etc/apache2/sites-available/caldav.example.net
 * Apache site profile:

Reset the admin password
Useful after an installation, when we want to be sure of our wanted password (example for database name "mycaldb" and password "1234") echo "UPDATE usr SET password = '**1234' WHERE user_no=1;" | sudo su -l postgres -c "psql --dbname mycaldb"

TroubleShooting
See Problems and Solutions and Frequently Asked Questions