moulinette/yunohost_app.py
2013-02-26 23:13:49 +01:00

478 lines
16 KiB
Python

# -*- coding: utf-8 -*-
import os
import sys
import json
import shutil
import stat
import yaml
from yunohost import YunoHostError, YunoHostLDAP, win_msg, random_password
from yunohost_domain import domain_list, domain_add
repo_path = '/var/cache/yunohost/repo'
apps_path = '/usr/share/yunohost/apps'
apps_setting_path= '/etc/yunohost/apps/'
install_tmp = '/tmp/yunohost/install'
app_tmp_folder = install_tmp + '/from_file'
a2_template_path = '/etc/yunohost/apache/templates'
a2_app_conf_path = '/etc/yunohost/apache/domains'
lemon_tmp_conf = '/tmp/tmplemonconf'
def app_listlists():
"""
List fetched lists
Returns:
Dict of lists
"""
list_list = []
try:
for filename in os.listdir(repo_path):
if '.json' in filename:
list_list.append(filename[:len(filename)-5])
except OSError:
raise YunoHostError(1, _("No list found"))
return { 'Lists' : list_list }
def app_fetchlist(url=None, name=None):
"""
Fetch application list
Keyword arguments:
url -- Custom list URL
name -- Name of the app list
Returns:
True | YunoHostError
"""
# Create app path if not exists
try: os.listdir(repo_path)
except OSError: os.makedirs(repo_path)
if not url:
url = 'http://fapp.yunohost.org/app/list/raw'
name = "fapp"
else:
if not name: raise YunoHostError(22, _("You must indicate a name for your custom list"))
if os.system('wget "'+ url +'" -O "'+ repo_path +'/'+ name +'.json"') != 0:
raise YunoHostError(1, _("List server connection failed"))
win_msg(_("List successfully fetched"))
def app_removelist(name):
"""
Remove specified application list
Keyword arguments:
name -- Name of the list to remove
"""
try:
os.remove(repo_path +'/'+ name + '.json')
except OSError:
raise YunoHostError(22, _("Unknown list"))
win_msg(_("List successfully removed"))
def app_list(offset=None, limit=None, filter=None, raw=False):
"""
List available applications
Keyword arguments:
offset -- App to begin with
limit -- Number of apps to list
filter -- Name filter
raw -- Return the full app_dict
Returns:
Dict of apps
"""
# TODO: List installed applications
if offset: offset = int(offset)
else: offset = 0
if limit: limit = int(limit)
else: limit = 1000
applists = os.listdir(repo_path)
app_dict = {}
list_dict = {}
if not applists: app_fetchlist()
for applist in applists:
if '.json' in applist:
with open(repo_path +'/'+ applist) as json_list:
app_dict.update(json.loads(str(json_list.read())))
if len(app_dict) > (0 + offset) and limit > 0:
i = 0 + offset
sorted_app_dict = {}
for sorted_keys in sorted(app_dict.keys())[i:]:
if i <= limit:
sorted_app_dict[sorted_keys] = app_dict[sorted_keys]
i += 1
for app_id, app_info in sorted_app_dict.items():
if (filter and ((filter in app_id) or (filter in app_info['manifest']['name']))) or not filter:
if raw:
list_dict[app_id] = app_info
else:
list_dict[app_id] = {
'Name': app_info['manifest']['name'],
'Version': app_info['manifest']['version'],
'Description': app_info['manifest']['description']
}
return list_dict
def app_install(app, domain, path='/', label=None, public=False, protected=True):
"""
Install selected app
Keyword arguments:
app -- AppID to install (or filename)
domain -- Web domain for the app
path -- Subpath of the domain
label -- User defined name for the app
public -- Allow app public access
protected -- App is protected by the SSO
Returns:
Win | Fail
"""
is_webapp = False
with YunoHostLDAP() as yldap:
try: os.listdir(install_tmp)
except OSError: os.makedirs(install_tmp)
# Check if install from file or git
if "." in app:
manifest = _extract_app_tarball(app)
else:
manifest = _fetch_app_from_git(app)
if '__' in manifest['yunohost']['uid']:
raise YunoHostError(22, _("App uid is invalid"))
instance_number = _installed_instance_number(manifest['yunohost']['uid']) + 1
if instance_number > 1:
if not ('multi_instance' in manifest['yunohost'] and (manifest['yunohost']['multi_instance'] == 'yes' or manifest['yunohost']['multi_instance'] == 'true')):
raise YunoHostError(1, _("App is already installed"))
unique_app_id = manifest['yunohost']['uid'] +'__'+ str(instance_number)
script_var_dict = { 'APP_DIR': app_tmp_folder }
if 'dependencies' in manifest: _install_app_dependencies(manifest['dependencies'])
if 'webapp' in manifest['yunohost']:
is_webapp = True
if 'db' in manifest['yunohost']['webapp']:
db_user = unique_app_id
db_pwd = random_password()
script_var_dict['DB_USER'] = db_user
script_var_dict['DB_PWD'] = db_pwd
script_var_dict['DB_NAME'] = db_user
_init_app_db(db_user, db_pwd, manifest['yunohost']['webapp']['db'])
if 'script_path' in manifest['yunohost']:
_exec_app_script(step='install', path=app_tmp_folder +'/'+ manifest['yunohost']['script_path'], var_dict=script_var_dict, app_type=manifest['type'])
if is_webapp:
# Handle domain if ain't already created
try:
domain_list(filter="virtualdomain="+ domain)
except YunoHostError:
domain_add([domain])
_apache_config(domain)
_lemon_config(domain)
# Copy files to the right place
try: os.listdir(apps_path)
except OSError: os.makedirs(apps_path)
app_final_path = apps_path +'/'+ unique_app_id
# TMP: Remove old application
if os.path.exists(app_final_path): shutil.rmtree(app_final_path)
os.system('cp -a "'+ app_tmp_folder +'" "'+ app_final_path +'"')
os.system('chown -R www-data: "'+ app_final_path +'"')
shutil.rmtree(app_final_path + manifest['yunohost']['script_path'])
app_setting_path = apps_setting_path +'/'+ unique_app_id
# TMP: Remove old settings
if os.path.exists(app_setting_path): shutil.rmtree(app_setting_path)
os.makedirs(app_setting_path)
if is_webapp:
yaml_dict = {
'uid' : manifest['yunohost']['uid'],
'instance' : instance_number,
'name': manifest['name'],
'public': public,
'protected': protected,
'domain': domain,
'path': path,
}
if 'db' in manifest['yunohost']['webapp']:
yaml_dict['db_pwd'] = db_pwd
yaml_dict['db_user'] = db_user
if label: yaml_dict['label'] = label
else: yaml_dict['label'] = manifest['name']
with open(app_setting_path +'/app_setting.yml', 'w') as f:
yaml.safe_dump(yaml_dict, f, default_flow_style=False)
win_msg(_("App setting file created"))
if 'script_path' in manifest['yunohost']:
os.system('cp -a "'+ app_tmp_folder +'/'+ manifest['yunohost']['script_path'] +'" '+ app_setting_path)
shutil.rmtree(app_tmp_folder)
if os.system('chmod 400 -R '+ app_setting_path) == 0:
win_msg(_("Installation complete"))
else:
raise YunoHostError(22, _("Error during permission setting"))
def _extract_app_tarball(path):
"""
Unzip or untar application tarball in app_tmp_folder
Keyword arguments:
path -- Path of the tarball
Returns:
Dict manifest
"""
if os.path.exists(app_tmp_folder): shutil.rmtree(app_tmp_folder)
os.makedirs(app_tmp_folder)
if ".zip" in path:
extract_result = os.system('cd '+ os.getcwd() +' && unzip '+ path +' -d '+ app_tmp_folder)
elif ".tar" in path:
extract_result = os.system('cd '+ os.getcwd() +' && tar -C '+ app_tmp_folder +' -xf '+ path)
else:
extract_result = 1
if extract_result != 0:
raise YunoHostError(22, _("Invalid install file"))
with open(app_tmp_folder + '/manifest.webapp') as json_manifest:
manifest = json.loads(str(json_manifest.read()))
win_msg(_("Tarball extracted"))
return manifest
def _fetch_app_from_git(app):
"""
Unzip or untar application tarball in app_tmp_folder
Keyword arguments:
app -- Path of the tarball
Returns:
Dict manifest
"""
global app_tmp_folder
app_tmp_folder = install_tmp +'/'+ app
if os.path.exists(app_tmp_folder): shutil.rmtree(app_tmp_folder)
app_dict = app_list(raw=True)
if app in app_dict:
app_info = app_dict[app]
else:
raise YunoHostError(22, _("App doesn't exists"))
git_result = os.system('git clone '+ app_info['git']['url'] +' -b '+ app_info['git']['branch'] +' '+ app_tmp_folder)
git_result_2 = os.system('cd '+ app_tmp_folder +' && git reset --hard '+ str(app_info['git']['revision']))
if not git_result == git_result_2 == 0:
raise YunoHostError(22, _("Sources fetching failed"))
win_msg(_("Repository fetched"))
return app_info['manifest']
def _install_app_dependencies(dep_dict):
"""
Install debian, npm, gem, pip and pear dependencies of the app
Keyword arguments:
dep_dict -- Dict of dependencies from the manifest
"""
if ('debian' in dep_dict) and (len(dep_dict['debian']) > 0):
#os.system('apt-get update')
if os.system('apt-get install "'+ '" "'.join(dep_dict['debian']) +'"') != 0:
raise YunoHostError(1, _("Dependency installation failed: ") + dependency)
# TODO: Install npm, pip, gem and pear dependencies
win_msg(_("Dependencies installed"))
def _init_app_db(db_user, db_pwd, db_dict):
"""
Create database and initialize it with optionnal attached script
Keyword arguments:
db_user -- Name of the DB user (also used as database name)
db_pwd -- Password for the user
db_dict -- Dict of DB parameters from the manifest
"""
# Need MySQL DB ?
if 'has_mysql_db' in db_dict and ((db_dict['has_mysql_db'] == 'true') or (db_dict['has_mysql_db'] == 'yes')):
mysql_root_pwd = open('/etc/yunohost/mysql', 'rb').read().rstrip()
mysql_command = 'mysql -u root -p'+ mysql_root_pwd +' -e "CREATE DATABASE '+ db_user +' ; GRANT ALL PRIVILEGES ON '+ db_user +'.* TO \''+ db_user +'\'@localhost IDENTIFIED BY \''+ db_pwd +'\';"'
if os.system(mysql_command) != 0:
raise YunoHostError(1, _("MySQL DB creation failed"))
if 'mysql_init_script' in db_dict:
if os.system('mysql -u '+ db_user +' -p'+ db_pwd +' '+ db_user +' < '+ app_tmp_folder + db_dict['mysql_init_script'] +' ;') != 0:
raise YunoHostError(1, _("MySQL DB init failed"))
# TODO: PgSQL/MongoDB ?
win_msg(_("Database initiliazed"))
def _exec_app_script(step, path, var_dict, app_type):
"""
Execute step user script
Keyword arguments:
step -- Name of the script to call regarding the current step (e.g. install|upgrade|remove|etc.)
path -- Absolute path of the script's directory
var_dict -- Dictionnary of environnement variable to pass to the script
app_type -- Decides whether to execute as root or as yunohost-app user (e.g. web|privileged|certified)
"""
scripts = [ step, step +'.sh', step +'.py' ]
for script in scripts:
script_path = path +'/'+ script
if os.path.exists(script_path):
st = os.stat(script_path)
os.chmod(script_path, st.st_mode | stat.S_IEXEC)
if app_type == 'privileged' or app_type == 'certified':
user = 'root'
else:
user = 'yunohost-app'
os.system('chown -R '+ user +': '+ app_tmp_folder)
env_vars = ''
for key, value in var_dict.items():
env_vars = env_vars + key + "='"+ value +"' "
command = 'su - '+ user +' -c "'+ env_vars +' sh '+ path +'/'+ script +'"'
if os.system(command) == 0:
win_msg(_("Script executed: ") + script)
else:
raise YunoHostError(1, _("Script execution failed: ") + script)
break
def _apache_config(domain):
"""
Fill Apache configuration templates
Keyword arguments:
domain -- Domain to configure Apache around
"""
# TMP: remove old conf
if os.path.exists(a2_app_conf_path +'/'+ domain +'.conf'): os.remove(a2_app_conf_path +'/'+ domain +'.conf')
if os.path.exists(a2_app_conf_path +'/'+ domain +'.d/'): shutil.rmtree(a2_app_conf_path +'/'+ domain +'.d/')
try: os.listdir(a2_app_conf_path +'/'+ domain +'.d/')
except OSError: os.makedirs(a2_app_conf_path +'/'+ domain +'.d/')
with open(a2_app_conf_path +'/'+ domain +'.conf', 'a') as a2_conf:
for line in open(a2_template_path +'/template.conf.tmp'):
line = line.replace('[domain]',domain)
a2_conf.write(line)
if os.system('service apache2 reload') == 0:
win_msg(_("Apache configured"))
else:
raise YunoHostError(1, _("An error occured during Apache configuration"))
def _lemon_config(domain):
"""
Configure LemonLDAP
Keyword arguments:
domain -- Domain to configure LemonLDAP around
"""
if os.path.exists(lemon_tmp_conf): os.remove(lemon_tmp_conf)
lemon_conf_lines = [
"$tmp->{'exportedHeaders'}->{'"+ domain +"'}->{'Auth-User'} = '$uid';",
"$tmp->{'exportedHeaders'}->{'"+ domain +"'}->{'Remote-User'} = '$uid';",
"$tmp->{'exportedHeaders'}->{'"+ domain +"'}->{'Desc'} = '$description';",
"$tmp->{'exportedHeaders'}->{'"+ domain +"'}->{'Email'} = '$uid';",
"$tmp->{'exportedHeaders'}->{'"+ domain +"'}->{'Name'} = '$cn';",
"$tmp->{'exportedHeaders'}->{'"+ domain +"'}->{'Authorization'} = '\"Basic \".encode_base64(\"$uid:$_password\")';",
"$tmp->{'vhostOptions'}->{'"+ domain +"'}->{'vhostMaintenance'} = 0;",
"$tmp->{'vhostOptions'}->{'"+ domain +"'}->{'vhostPort'} = -1;",
"$tmp->{'vhostOptions'}->{'"+ domain +"'}->{'vhostHttps'} = -1;",
"$tmp->{'locationRules'}->{'"+ domain +"'}->{'default'} = 'accept';",
"$tmp->{'locationRules'}->{'"+ domain +"'}->{'(?#logout)^/logout'} = 'logout_app_sso https://"+ domain +"/';",
]
with open(lemon_tmp_conf,'a') as lemon_conf:
for line in lemon_conf_lines:
lemon_conf.write(line + '\n')
if os.system('/usr/share/lemonldap-ng/bin/lmYnhMoulinette') == 0:
win_msg(_("LemonLDAP configured"))
else:
raise YunoHostError(1, _("An error occured during LemonLDAP configuration"))
def _installed_instance_number(app):
"""
Check if application is installed and return instance number
Keyword arguments:
app -- uid of App to check
Returns:
Number of installed instance
"""
number = 0
installed_apps = os.listdir(apps_setting_path)
for installed_app in installed_apps:
if '__' in installed_app:
if app == installed_app[:installed_app.index('__')]:
if int(installed_app[installed_app.index('__') + 2:]) > number:
number = int(installed_app[installed_app.index('__') + 2:])
return number