Nominatim/nominatim/tools/exec_utils.py
Sarah Hoffmann a2edbbf78a cannot use capture_output in subprocess.run
Only available since Python 3.7.
2021-07-06 22:57:42 +02:00

147 lines
5.1 KiB
Python

"""
Helper functions for executing external programs.
"""
import logging
import subprocess
import urllib.request as urlrequest
from urllib.parse import urlencode
from nominatim.version import NOMINATIM_VERSION
from nominatim.db.connection import get_pg_env
LOG = logging.getLogger()
def run_legacy_script(script, *args, nominatim_env=None, throw_on_fail=False):
""" Run a Nominatim PHP script with the given arguments.
Returns the exit code of the script. If `throw_on_fail` is True
then throw a `CalledProcessError` on a non-zero exit.
"""
cmd = ['/usr/bin/env', 'php', '-Cq',
str(nominatim_env.phplib_dir / 'admin' / script)]
cmd.extend([str(a) for a in args])
env = nominatim_env.config.get_os_env()
env['NOMINATIM_DATADIR'] = str(nominatim_env.data_dir)
env['NOMINATIM_SQLDIR'] = str(nominatim_env.sqllib_dir)
env['NOMINATIM_CONFIGDIR'] = str(nominatim_env.config_dir)
env['NOMINATIM_DATABASE_MODULE_SRC_PATH'] = str(nominatim_env.module_dir)
if not env['NOMINATIM_OSM2PGSQL_BINARY']:
env['NOMINATIM_OSM2PGSQL_BINARY'] = str(nominatim_env.osm2pgsql_path)
proc = subprocess.run(cmd, cwd=str(nominatim_env.project_dir), env=env,
check=throw_on_fail)
return proc.returncode
def run_api_script(endpoint, project_dir, extra_env=None, phpcgi_bin=None,
params=None):
""" Execute a Nominiatim API function.
The function needs a project directory that contains the website
directory with the scripts to be executed. The scripts will be run
using php_cgi. Query parameters can be added as named arguments.
Returns the exit code of the script.
"""
log = logging.getLogger()
webdir = str(project_dir / 'website')
query_string = urlencode(params or {})
env = dict(QUERY_STRING=query_string,
SCRIPT_NAME='/{}.php'.format(endpoint),
REQUEST_URI='/{}.php?{}'.format(endpoint, query_string),
CONTEXT_DOCUMENT_ROOT=webdir,
SCRIPT_FILENAME='{}/{}.php'.format(webdir, endpoint),
HTTP_HOST='localhost',
HTTP_USER_AGENT='nominatim-tool',
REMOTE_ADDR='0.0.0.0',
DOCUMENT_ROOT=webdir,
REQUEST_METHOD='GET',
SERVER_PROTOCOL='HTTP/1.1',
GATEWAY_INTERFACE='CGI/1.1',
REDIRECT_STATUS='CGI')
if extra_env:
env.update(extra_env)
if phpcgi_bin is None:
cmd = ['/usr/bin/env', 'php-cgi']
else:
cmd = [str(phpcgi_bin)]
proc = subprocess.run(cmd, cwd=str(project_dir), env=env,
stdout=subprocess.PIPE,
stderr=subprocess.PIPE,
check=False)
if proc.returncode != 0 or proc.stderr:
if proc.stderr:
log.error(proc.stderr.decode('utf-8').replace('\\n', '\n'))
else:
log.error(proc.stdout.decode('utf-8').replace('\\n', '\n'))
return proc.returncode or 1
result = proc.stdout.decode('utf-8')
content_start = result.find('\r\n\r\n')
print(result[content_start + 4:].replace('\\n', '\n'))
return 0
def run_php_server(server_address, base_dir):
""" Run the built-in server from the given directory.
"""
subprocess.run(['/usr/bin/env', 'php', '-S', server_address],
cwd=str(base_dir), check=True)
def run_osm2pgsql(options):
""" Run osm2pgsql with the given options.
"""
env = get_pg_env(options['dsn'])
cmd = [str(options['osm2pgsql']),
'--hstore', '--latlon', '--slim',
'--with-forward-dependencies', 'false',
'--log-progress', 'true',
'--number-processes', str(options['threads']),
'--cache', str(options['osm2pgsql_cache']),
'--output', 'gazetteer',
'--style', str(options['osm2pgsql_style'])
]
if options['append']:
cmd.append('--append')
else:
cmd.append('--create')
if options['flatnode_file']:
cmd.extend(('--flat-nodes', options['flatnode_file']))
for key, param in (('slim_data', '--tablespace-slim-data'),
('slim_index', '--tablespace-slim-index'),
('main_data', '--tablespace-main-data'),
('main_index', '--tablespace-main-index')):
if options['tablespaces'][key]:
cmd.extend((param, options['tablespaces'][key]))
if options.get('disable_jit', False):
env['PGOPTIONS'] = '-c jit=off -c max_parallel_workers_per_gather=0'
cmd.append(str(options['import_file']))
subprocess.run(cmd, cwd=options.get('cwd', '.'), env=env, check=True)
def get_url(url):
""" Get the contents from the given URL and return it as a UTF-8 string.
"""
headers = {"User-Agent" : "Nominatim/{0[0]}.{0[1]}.{0[2]}-{0[3]}".format(NOMINATIM_VERSION)}
try:
with urlrequest.urlopen(urlrequest.Request(url, headers=headers)) as response:
return response.read().decode('utf-8')
except:
LOG.fatal('Failed to load URL: %s', url)
raise