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Merge pull request #78 from YunoHost/misc-improvements

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Misc improvements
This commit is contained in:
Alexandre Aubin 2020-04-03 04:44:42 +02:00 committed by GitHub
commit c0e77e690c
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2 changed files with 592 additions and 98 deletions
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270
lib/nginxparser/nginxparser.py Normal file
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@ -0,0 +1,270 @@
"""Very low-level nginx config parser based on pyparsing."""
# Taken from https://github.com/certbot/certbot (Apache licensed)
# Itself forked from https://github.com/fatiherikli/nginxparser (MIT Licensed)
import copy
import logging
from pyparsing import (
Literal, White, Forward, Group, Optional, OneOrMore, QuotedString, Regex, ZeroOrMore, Combine)
from pyparsing import stringEnd
from pyparsing import restOfLine
import six
logger = logging.getLogger(__name__)
class RawNginxParser(object):
# pylint: disable=expression-not-assigned
# pylint: disable=pointless-statement
"""A class that parses nginx configuration with pyparsing."""
# constants
space = Optional(White()).leaveWhitespace()
required_space = White().leaveWhitespace()
left_bracket = Literal("{").suppress()
right_bracket = space + Literal("}").suppress()
semicolon = Literal(";").suppress()
dquoted = QuotedString('"', multiline=True, unquoteResults=False, escChar='\\')
squoted = QuotedString("'", multiline=True, unquoteResults=False, escChar='\\')
quoted = dquoted | squoted
head_tokenchars = Regex(r"(\$\{)|[^{};\s'\"]") # if (last_space)
tail_tokenchars = Regex(r"(\$\{)|[^{;\s]") # else
tokenchars = Combine(head_tokenchars + ZeroOrMore(tail_tokenchars))
paren_quote_extend = Combine(quoted + Literal(')') + ZeroOrMore(tail_tokenchars))
# note: ')' allows extension, but then we fall into else, not last_space.
token = paren_quote_extend | tokenchars | quoted
whitespace_token_group = space + token + ZeroOrMore(required_space + token) + space
assignment = whitespace_token_group + semicolon
comment = space + Literal('#') + restOfLine
block = Forward()
# order matters! see issue 518, and also http { # server { \n}
contents = Group(comment) | Group(block) | Group(assignment)
block_begin = Group(whitespace_token_group)
block_innards = Group(ZeroOrMore(contents) + space).leaveWhitespace()
block << block_begin + left_bracket + block_innards + right_bracket
script = OneOrMore(contents) + space + stringEnd
script.parseWithTabs().leaveWhitespace()
def __init__(self, source):
self.source = source
def parse(self):
"""Returns the parsed tree."""
return self.script.parseString(self.source)
def as_list(self):
"""Returns the parsed tree as a list."""
return self.parse().asList()
class RawNginxDumper(object):
# pylint: disable=too-few-public-methods
"""A class that dumps nginx configuration from the provided tree."""
def __init__(self, blocks):
self.blocks = blocks
def __iter__(self, blocks=None):
"""Iterates the dumped nginx content."""
blocks = blocks or self.blocks
for b0 in blocks:
if isinstance(b0, six.string_types):
yield b0
continue
item = copy.deepcopy(b0)
if spacey(item[0]):
yield item.pop(0) # indentation
if not item:
continue
if isinstance(item[0], list): # block
yield "".join(item.pop(0)) + '{'
for parameter in item.pop(0):
for line in self.__iter__([parameter]): # negate "for b0 in blocks"
yield line
yield '}'
else: # not a block - list of strings
semicolon = ";"
if isinstance(item[0], six.string_types) and item[0].strip() == '#': # comment
semicolon = ""
yield "".join(item) + semicolon
def __str__(self):
"""Return the parsed block as a string."""
return ''.join(self)
# Shortcut functions to respect Python's serialization interface
# (like pyyaml, picker or json)
def loads(source):
"""Parses from a string.
:param str source: The string to parse
:returns: The parsed tree
:rtype: list
"""
return UnspacedList(RawNginxParser(source).as_list())
def load(_file):
"""Parses from a file.
:param file _file: The file to parse
:returns: The parsed tree
:rtype: list
"""
return loads(_file.read())
def dumps(blocks):
"""Dump to a string.
:param UnspacedList block: The parsed tree
:param int indentation: The number of spaces to indent
:rtype: str
"""
return str(RawNginxDumper(blocks.spaced))
def dump(blocks, _file):
"""Dump to a file.
:param UnspacedList block: The parsed tree
:param file _file: The file to dump to
:param int indentation: The number of spaces to indent
:rtype: NoneType
"""
return _file.write(dumps(blocks))
spacey = lambda x: (isinstance(x, six.string_types) and x.isspace()) or x == ''
class UnspacedList(list):
"""Wrap a list [of lists], making any whitespace entries magically invisible"""
def __init__(self, list_source):
# ensure our argument is not a generator, and duplicate any sublists
self.spaced = copy.deepcopy(list(list_source))
self.dirty = False
# Turn self into a version of the source list that has spaces removed
# and all sub-lists also UnspacedList()ed
list.__init__(self, list_source)
for i, entry in reversed(list(enumerate(self))):
if isinstance(entry, list):
sublist = UnspacedList(entry)
list.__setitem__(self, i, sublist)
self.spaced[i] = sublist.spaced
elif spacey(entry):
# don't delete comments
if "#" not in self[:i]:
list.__delitem__(self, i)
def _coerce(self, inbound):
"""
Coerce some inbound object to be appropriately usable in this object
:param inbound: string or None or list or UnspacedList
:returns: (coerced UnspacedList or string or None, spaced equivalent)
:rtype: tuple
"""
if not isinstance(inbound, list): # str or None
return (inbound, inbound)
else:
if not hasattr(inbound, "spaced"):
inbound = UnspacedList(inbound)
return (inbound, inbound.spaced)
def insert(self, i, x):
item, spaced_item = self._coerce(x)
slicepos = self._spaced_position(i) if i < len(self) else len(self.spaced)
self.spaced.insert(slicepos, spaced_item)
if not spacey(item):
list.insert(self, i, item)
self.dirty = True
def append(self, x):
item, spaced_item = self._coerce(x)
self.spaced.append(spaced_item)
if not spacey(item):
list.append(self, item)
self.dirty = True
def extend(self, x):
item, spaced_item = self._coerce(x)
self.spaced.extend(spaced_item)
list.extend(self, item)
self.dirty = True
def __add__(self, other):
l = copy.deepcopy(self)
l.extend(other)
l.dirty = True
return l
def pop(self, _i=None):
raise NotImplementedError("UnspacedList.pop() not yet implemented")
def remove(self, _):
raise NotImplementedError("UnspacedList.remove() not yet implemented")
def reverse(self):
raise NotImplementedError("UnspacedList.reverse() not yet implemented")
def sort(self, _cmp=None, _key=None, _Rev=None):
raise NotImplementedError("UnspacedList.sort() not yet implemented")
def __setslice__(self, _i, _j, _newslice):
raise NotImplementedError("Slice operations on UnspacedLists not yet implemented")
def __setitem__(self, i, value):
if isinstance(i, slice):
raise NotImplementedError("Slice operations on UnspacedLists not yet implemented")
item, spaced_item = self._coerce(value)
self.spaced.__setitem__(self._spaced_position(i), spaced_item)
if not spacey(item):
list.__setitem__(self, i, item)
self.dirty = True
def __delitem__(self, i):
self.spaced.__delitem__(self._spaced_position(i))
list.__delitem__(self, i)
self.dirty = True
def __deepcopy__(self, memo):
new_spaced = copy.deepcopy(self.spaced, memo=memo)
l = UnspacedList(new_spaced)
l.dirty = self.dirty
return l
def is_dirty(self):
"""Recurse through the parse tree to figure out if any sublists are dirty"""
if self.dirty:
return True
return any((isinstance(x, UnspacedList) and x.is_dirty() for x in self))
def _spaced_position(self, idx):
"Convert from indexes in the unspaced list to positions in the spaced one"
pos = spaces = 0
# Normalize indexes like list[-1] etc, and save the result
if idx < 0:
idx = len(self) + idx
if not 0 <= idx < len(self):
raise IndexError("list index out of range")
idx0 = idx
# Count the number of spaces in the spaced list before idx in the unspaced one
while idx != -1:
if spacey(self.spaced[pos]):
spaces += 1
else:
idx -= 1
pos += 1
return idx0 + spaces

416
package_linter.py
View file

@ -8,9 +8,144 @@ import json
import shlex
import urllib.request
import codecs
import subprocess
reader = codecs.getreader("utf-8")
return_code = 0
# ############################################################################
# Helper list
# ############################################################################
# Generated March 31st using:
# cat /path/to/yunohost/data/helpers.d/* | grep "^ynh_" | tr -d '(){ ' > helperlist
# for HELPER in $(cat helperlist); do REQUIRE=$(grep -whB1 "^$HELPER" /path/to/yunohost/data/helpers.d/* | grep Requires | grep -o -E "[0-9].[0-9].[0-9]"); echo "'$HELPER': '$REQUIRE'",; done
official_helpers = {
'ynh_wait_dpkg_free': '3.3.1',
'ynh_package_is_installed': '2.2.4',
'ynh_package_version': '2.2.4',
'ynh_apt': '2.4.0',
'ynh_package_update': '2.2.4',
'ynh_package_install': '2.2.4',
'ynh_package_remove': '2.2.4',
'ynh_package_autoremove': '2.2.4',
'ynh_package_autopurge': '2.7.2',
'ynh_package_install_from_equivs': '2.2.4',
'ynh_install_app_dependencies': '2.6.4',
'ynh_remove_app_dependencies': '2.6.4',
'ynh_backup': '2.4.0',
'ynh_restore': '2.6.4',
'ynh_restore_file': '2.6.4',
'ynh_bind_or_cp': '',
'ynh_store_file_checksum': '2.6.4',
'ynh_backup_if_checksum_is_different': '2.6.4',
'ynh_delete_file_checksum': '3.3.1',
'ynh_backup_before_upgrade': '2.7.2',
'ynh_restore_upgradebackup': '2.7.2',
'ynh_add_fail2ban_config': '3.5.0',
'ynh_remove_fail2ban_config': '3.5.0',
'ynh_handle_getopts_args': '3.2.2',
'ynh_die': '2.4.0',
'ynh_print_info': '3.2.0',
'ynh_no_log': '2.6.4',
'ynh_print_log': '3.2.0',
'ynh_print_warn': '3.2.0',
'ynh_print_err': '3.2.0',
'ynh_exec_err': '3.2.0',
'ynh_exec_warn': '3.2.0',
'ynh_exec_warn_less': '3.2.0',
'ynh_exec_quiet': '3.2.0',
'ynh_exec_fully_quiet': '3.2.0',
'ynh_print_OFF': '3.2.0',
'ynh_print_ON': '3.2.0',
'ynh_script_progression': '3.5.0',
'ynh_return': '3.6.0',
'ynh_debug': '3.5.0',
'ynh_debug_exec': '3.5.0',
'ynh_use_logrotate': '2.6.4',
'ynh_remove_logrotate': '2.6.4',
'ynh_mysql_connect_as': '2.2.4',
'ynh_mysql_execute_as_root': '2.2.4',
'ynh_mysql_execute_file_as_root': '2.2.4',
'ynh_mysql_create_db': '2.2.4',
'ynh_mysql_drop_db': '2.2.4',
'ynh_mysql_dump_db': '2.2.4',
'ynh_mysql_create_user': '2.2.4',
'ynh_mysql_user_exists': '2.2.4',
'ynh_mysql_drop_user': '2.2.4',
'ynh_mysql_setup_db': '2.6.4',
'ynh_mysql_remove_db': '2.6.4',
'ynh_find_port': '2.6.4',
'ynh_port_available': '',
'ynh_validate_ip': '2.2.4',
'ynh_validate_ip4': '2.2.4',
'ynh_validate_ip6': '2.2.4',
'ynh_add_nginx_config': '2.7.2',
'ynh_remove_nginx_config': '2.7.2',
'ynh_install_n': '2.7.1',
'ynh_use_nodejs': '2.7.1',
'ynh_install_nodejs': '2.7.1',
'ynh_remove_nodejs': '2.7.1',
'ynh_cron_upgrade_node': '2.7.1',
'ynh_add_fpm_config': '2.7.2',
'ynh_remove_fpm_config': '2.7.2',
'ynh_psql_connect_as': '3.5.0',
'ynh_psql_execute_as_root': '3.5.0',
'ynh_psql_execute_file_as_root': '3.5.0',
'ynh_psql_create_db': '3.5.0',
'ynh_psql_drop_db': '3.5.0',
'ynh_psql_dump_db': '3.5.0',
'ynh_psql_create_user': '3.5.0',
'ynh_psql_user_exists': '',
'ynh_psql_database_exists': '',
'ynh_psql_drop_user': '3.5.0',
'ynh_psql_setup_db': '',
'ynh_psql_remove_db': '',
'ynh_psql_test_if_first_run': '',
'ynh_app_setting_get': '2.2.4',
'ynh_app_setting_set': '2.2.4',
'ynh_app_setting_delete': '2.2.4',
'ynh_add_skipped_uris': '3.6.0',
'ynh_add_unprotected_uris': '3.6.0',
'ynh_add_protected_uris': '3.6.0',
'ynh_app_setting': '',
'ynh_webpath_available': '2.6.4',
'ynh_webpath_register': '2.6.4',
'ynh_permission_create': '3.7.0',
'ynh_permission_delete': '3.7.0',
'ynh_permission_exists': '3.7.0',
'ynh_permission_url': '3.7.0',
'ynh_permission_update': '3.7.0',
'ynh_string_random': '2.2.4',
'ynh_replace_string': '2.6.4',
'ynh_replace_special_string': '2.7.7',
'ynh_sanitize_dbid': '2.2.4',
'ynh_normalize_url_path': '2.6.4',
'ynh_add_systemd_config': '2.7.2',
'ynh_remove_systemd_config': '2.7.2',
'ynh_systemd_action': '',
'ynh_clean_check_starting': '',
'ynh_user_exists': '2.2.4',
'ynh_user_get_info': '2.2.4',
'ynh_user_list': '2.4.0',
'ynh_system_user_exists': '2.2.4',
'ynh_system_group_exists': '',
'ynh_system_user_create': '2.6.4',
'ynh_system_user_delete': '2.6.4',
'ynh_exit_properly': '',
'ynh_abort_if_errors': '2.6.4',
'ynh_setup_source': '2.6.4',
'ynh_local_curl': '2.6.4',
'ynh_render_template': '',
'ynh_get_debian_release': '2.7.1',
'ynh_mkdir_tmp': '',
'ynh_secure_remove': '2.6.4',
'ynh_get_plain_key': '2.2.4',
'ynh_read_manifest': '3.5.0',
'ynh_app_upstream_version': '3.5.0',
'ynh_app_package_version': '3.5.0',
'ynh_check_app_version_changed': '3.5.0',
}
# ############################################################################
@ -49,6 +184,9 @@ def header(app):
Official helpers - https://yunohost.org/#/packaging_apps_helpers_en
Experimental helpers - https://github.com/YunoHost-Apps/Experimental_helpers
If you believe this linter returns false negative (warnings / errors which shouldn't happen),
please report them on https://github.com/YunoHost/package_linter/issues
Analyzing package {header}{app}{end}"""
.format(header=c.HEADER, bold=c.BOLD, end=c.END, app=app))
@ -61,16 +199,24 @@ def print_warning_not_reliable(str):
print(c.MAYBE_FAIL + "?", str, c.END)
warning_count = 0
def print_warning(str):
global warning_count
warning_count += 1
print(c.WARNING + "!", str, c.END)
error_count = 0
def print_error(str):
global return_code
return_code = 1
global error_count
error_count += 1
print(c.FAIL + "✘", str, c.END)
def print_happy(str):
print(c.OKGREEN + "☺ ", str, "♥")
def urlopen(url):
try:
conn = urllib.request.urlopen(url)
@ -84,35 +230,84 @@ def urlopen(url):
def file_exists(file_path):
return os.path.isfile(file_path) and os.stat(file_path).st_size > 0
def spdx_licenses():
cachefile = ".spdx_licenses"
if os.path.exists(cachefile):
return open(cachefile).read()
link = "https://spdx.org/licenses/"
content = urlopen(link)['content']
open(cachefile, "w").write(content)
return content
# ############################################################################
# Actual high-level checks
# ############################################################################
scriptnames = ["_common.sh", "install", "remove", "upgrade", "backup", "restore"]
class App():
def __init__(self, path):
print_header("LOADING APP")
self.path = path
scripts = ["install", "remove", "upgrade", "backup", "restore"]
self.scripts = {f: Script(self.path, f) for f in scripts}
self.scripts = {f: Script(self.path, f) for f in scriptnames}
def analyze(self):
self.misc_file_checks()
self.check_helper_consistency()
self.check_source_management()
self.check_manifest()
self.misc_file_checks()
self.check_helpers_usage()
self.check_source_management()
# Copypasta of lines from __init__ instead of using
# self.script.values() because dict are unordered until python 3.7
scripts = ["install", "remove", "upgrade", "backup", "restore"]
for script in [self.scripts[s] for s in scripts]:
if script.exists:
for script in [self.scripts[s] for s in scriptnames if self.scripts[s].exists]:
script.analyze()
def check_helpers_usage(self):
print_header("HELPERS USAGE")
# Check for custom helpers definition that are now official...
cmd = "grep -IhEro 'ynh_\w+ *\( *\)' '%s/scripts' | tr -d '() '" % self.path
custom_helpers = subprocess.check_output(cmd, shell=True).decode('utf-8').strip().split("\n")
custom_helpers = [c.split("__")[0] for c in custom_helpers]
for custom_helper in custom_helpers:
if custom_helper in official_helpers.keys():
print_warning("%s is now an official helper since version '%s'" % (custom_helper, official_helpers[custom_helper] or '?'))
# Check for helpers usage that do not match version required in manifest...
if self.yunohost_version_req:
cmd = "grep -IhEro 'ynh_\w+' %s/scripts" % self.path
helpers_used = subprocess.check_output(cmd, shell=True).decode('utf-8').strip().split("\n")
helpers_used = sorted(set(helpers_used))
manifest_req = [int(i) for i in self.yunohost_version_req.strip(">= ").split('.')] + [0,0,0]
def validate_version_requirement(helper_req):
if helper_req == '':
return True
helper_req = [int(i) for i in helper_req.split('.')]
for i in range(0,len(helper_req)):
if helper_req[i] == manifest_req[i]:
continue
return helper_req[i] <= manifest_req[i]
return True
for helper in [h for h in helpers_used if h in official_helpers.keys()]:
if helper in custom_helpers:
continue
helper_req = official_helpers[helper]
if not validate_version_requirement(helper_req):
major_diff = manifest_req[0] > int(helper_req[0])
message = "Using official helper %s implies requiring at least version %s, but manifest only requires %s" % (helper, helper_req, self.yunohost_version_req)
if major_diff:
print_error(message)
else:
print_warning(message)
def misc_file_checks(self):
print_header("MISC FILE CHECKS")
@ -133,7 +328,7 @@ class App():
elif filename in non_mandatory:
print_warning("Consider adding a file %s" % filename)
else:
print_error("File %s is mandatory" % filename)
print_error("Providing a %s is mandatory" % filename)
#
# Deprecated php-fpm.ini thing
@ -152,7 +347,7 @@ class App():
# - Spot path traversal issue vulnerability
#
for filename in os.listdir(self.path + "/conf"):
for filename in os.listdir(self.path + "/conf") if os.path.exists(self.path + "/conf") else []:
# Ignore subdirs or filename not containing nginx in the name
if not os.path.isfile(self.path + "/conf/" + filename) or "nginx" not in filename:
continue
@ -171,36 +366,74 @@ class App():
#
# Path traversal issues
#
lines = open(self.path + "/conf/" + filename).readlines()
lines = [line.strip() for line in lines if not line.strip().startswith("#")]
# Let's find the first location line
location_line = None
path_traversal_vulnerable = False
lines_iter = lines.__iter__()
for line in lines_iter:
if line.startswith("location"):
location_line = line.split()
break
# Look at the next lines for an 'alias' directive
if location_line is not None:
for line in lines_iter:
if line.startswith("location"):
# Entering a new location block ... abort here
# and assume there's no alias block later...
break
if line.startswith("alias"):
# We should definitely check for path traversal issue
# Does the location target ends with / ?
target = location_line[-2] if location_line[-1] == "{" else location_line[-1]
if not target.endswith("/"):
path_traversal_vulnerable = True
break
if path_traversal_vulnerable:
def find_location_with_alias(locationblock):
if locationblock[0][0] != "location":
return
location = locationblock[0][-1]
for line in locationblock[1]:
instruction = line[0]
if instruction == "alias":
yield (location, line)
elif isinstance(instruction, list) and instruction and instruction[0] == "location":
yield from find_location_with_alias(instruction)
else:
continue
def find_path_traversal_issue(nginxconf):
for block in nginxconf:
for location, alias in find_location_with_alias(block):
alias_path = alias[-1]
# For path traversal issues to occur, both of those are needed :
# - location /foo { (*without* a / after foo)
# - alias /var/www/foo/ (*with* a / after foo)
#
# Note that we also consider a positive the case where
# the alias folder (e.g. /var/www/foo/) does not ends
# with / if __FINALPATH__ ain't used ... that probably
# means that the app is not using the standard nginx
# helper, and therefore it is likely to be replaced by
# something ending with / ...
if not location.endswith("/") \
and (alias_path.endswith("/") or "__FINALPATH__" not in alias_path):
yield location
do_path_traversal_check = False
try:
import pyparsing, six
do_path_traversal_check = True
except:
# If inside a venv, try to magically install pyparsing
if 'VIRTUAL_ENV' in os.environ:
try:
print("(Trying to auto install pyparsing...)")
subprocess.check_output("pip3 install pyparsing six", shell=True)
import pyparsing
print("Ok!")
do_path_traversal_check = True
except Exception as e:
print("Failed :[ : %s" % str(e))
if not do_path_traversal_check:
print("N.B.: The package linter need you to run 'pip3 install pyparsing six' if you want it to be able to check for path traversal issue in nginx confs")
if do_path_traversal_check:
from lib.nginxparser import nginxparser
try:
nginxconf = nginxparser.load(open(self.path + "/conf/" + filename))
except Exception as e:
print_warning_not_reliable("Could not parse nginx conf ... : " + str(e))
nginxconf = []
for location in find_path_traversal_issue(nginxconf):
print_warning(
"The nginx configuration appears vulnerable to path traversal as explained in "
"The nginx configuration (especially location %s) "
"appears vulnerable to path traversal issues as explained in\n"
" https://www.acunetix.com/vulnerabilities/web/path-traversal-via-misconfigured-nginx-alias/\n"
"To fix it, look at the first lines of the nginx conf of the example app : "
"https://github.com/YunoHost/example_ynh/blob/master/conf/nginx.conf"
" To fix it, look at the first lines of the nginx conf of the example app : \n"
" https://github.com/YunoHost/example_ynh/blob/master/conf/nginx.conf" % location
)
def check_helper_consistency(self):
@ -300,7 +533,6 @@ class App():
if "license" in manifest:
for license in manifest['license'].replace('&', ',').split(','):
code_license = '<code property="spdx:licenseId">' + license + '</code>'
link = "https://spdx.org/licenses/"
if license == "nonfree":
print_warning("[YEP-1.3] The correct value for non free license in license field is 'non-free' and not 'nonfree'")
license = "non-free"
@ -315,7 +547,7 @@ class App():
"[YEP-1.3] 'non-free' apps can't be officialized. "
" Their integration is still being discussed, especially for apps with non-free dependencies"
)
elif code_license not in urlopen(link)['content']:
elif code_license not in spdx_licenses():
print_warning(
"[YEP-1.3] The license '%s' is not registered in https://spdx.org/licenses/ . "
"It can be a typo error. If not, you should replace it by 'free' "
@ -412,7 +644,7 @@ class App():
)
if argument["name"] == "is_public" and "help" not in argument.keys():
print_warning(
print_warning_not_reliable(
"Consider adding an 'help' key for argument 'is_public' "
"to explain to the user what it means for *this* app "
"to be public or private :\n"
@ -427,17 +659,7 @@ class App():
"but rather the website or repo of the upstream app itself..."
)
yunohost_version_req = manifest.get("requirements", {}).get("yunohost", None)
if yunohost_version_req:
major_version = yunohost_version_req.split()[-1]
if major_version.startswith("2"):
print_warning(
"YunoHost version requirement is still 2.x ... Good job if "
"it does still work on Jessie !... But are you really sure "
"about that ;) ? be careful that many new helpers you might "
"already be playing with are only available on 3.x..."
)
self.yunohost_version_req = manifest.get("requirements", {}).get("yunohost", None)
class Script():
@ -484,48 +706,29 @@ class Script():
return any(command in line
for line in [' '.join(line) for line in self.lines])
def containsregex(self, regex):
"""
Iterate on lines to check if command is contained in line
For instance, "app setting" is contained in "yunohost app setting $app ..."
"""
return any(re.match(regex, line)
for line in [' '.join(line) for line in self.lines])
def analyze(self):
print_header(self.name.upper() + " SCRIPT")
self.check_verifications_done_before_modifying_system()
self.check_set_usage()
self.check_helper_usage_dependencies()
self.check_deprecated_practices()
self.check_source_common()
def check_verifications_done_before_modifying_system(self):
"""
Check if verifications are done before modifying the system
"""
if not self.contains("ynh_die") and not self.contains("exit"):
return
# FIXME : this really looks like a very small subset of command that
# can be used ... also packagers are not supposed to use apt or service
# anymore ...
modifying_cmds = ("cp", "mkdir", "rm", "chown", "chmod", "apt-get", "apt",
"service", "find", "sed", "mysql", "swapon", "mount",
"dd", "mkswap", "useradd")
cmds_before_exit = []
for cmd in self.lines:
cmd = " ".join(cmd)
if "ynh_die" in cmd or "exit" in cmd:
break
cmds_before_exit.append(cmd)
for modifying_cmd in modifying_cmds:
if any(modifying_cmd in cmd for cmd in cmds_before_exit):
print_warning_not_reliable(
"[YEP-2.4] 'ynh_die' or 'exit' command is executed with system modification before (cmd '%s').\n"
"This system modification is an issue if a verification exit the script.\n"
"You should move this verification before any system modification." % modifying_cmd
)
return
def check_set_usage(self):
if self.name == "_common.sh":
return
present = False
if self.name in ["backup", "remove"]:
@ -554,6 +757,10 @@ class Script():
and suggest herlpers ynh_install_app_dependencies and ynh_remove_app_dependencies
"""
# Skip this in common.sh, sometimes custom not-yet-official helpers need this
if self.name == "_common.sh":
return
if self.contains("ynh_package_install") or self.contains("apt-get install"):
print_warning(
"You should not use `ynh_package_install` or `apt-get install`, "
@ -569,23 +776,32 @@ class Script():
def check_deprecated_practices(self):
if self.contains("yunohost app setting"):
print_warning("'yunohost app setting' shouldn't be used directly. Please use 'ynh_app_setting_(set,get,delete)' instead.")
print_error("Do not use 'yunohost app setting' directly. Please use 'ynh_app_setting_(set,get,delete)' instead.")
if self.contains("yunohost app checkurl"):
print_warning("'yunohost app checkurl' is deprecated. Please use 'ynh_webpath_register' instead.")
print_error("'yunohost app checkurl' is obsolete!!! Please use 'ynh_webpath_register' instead.")
if self.contains("yunohost app checkport"):
print_warning("'yunohost app checkport' is deprecated. Please use 'ynh_find_port' instead.")
print_error("'yunohost app checkport' is obsolete!!! Please use 'ynh_find_port' instead.")
if self.contains("yunohost app initdb"):
print_warning("'yunohost app initdb' is deprecated. Please use 'ynh_mysql_setup_db' instead.")
print_error("'yunohost app initdb' is obsolete!!! Please use 'ynh_mysql_setup_db' instead.")
if self.contains("exit"):
print_warning("'exit' command shouldn't be used. Please use 'ynh_die' instead.")
if self.contains("yunohost service regen-conf"):
print_warning("'yunohost tools regen-conf' has been replaced by 'yunohost tools regen-conf'.")
# Dirty hack to check only the 10 last lines for ssowatconf
# (the "bad" practice being using this at the very end of the script, but some apps legitimately need this in the middle of the script)
oldlines = list(self.lines)
self.lines = self.lines[-10:]
if self.contains("yunohost app ssowatconf"):
print_warning("You probably don't need to run 'yunohost app ssowatconf' in the app script. It's supposed to be ran automatically after the script.")
self.lines = oldlines
if self.contains("rm -rf"):
print_error("[YEP-2.12] You should avoid using 'rm -rf', please use 'ynh_secure_remove' instead")
if self.contains("sed -i"):
print_warning("[YEP-2.12] You should avoid using 'sed -i', please use 'ynh_replace_string' instead")
if self.contains("sudo "):
if self.containsregex(r"sudo \w"): # \w is here to not match sudo -u, legit use because ynh_exec_as not official yet...
print_warning(
"[YEP-2.12] You should not need to use 'sudo', the script is being run as root. "
"(If you need to run a command using a specific user, use 'ynh_exec_as')"
@ -636,7 +852,15 @@ def main():
header(app_path)
App(app_path).analyze()
sys.exit(return_code)
if error_count > 0:
sys.exit(1)
elif warning_count > 3:
print("Still some warnings to be fixed :s")
elif warning_count > 0:
print("Only %s warning remaining! You can do it!" % warning_count)
else:
print_happy("Not even a warning! Congratz and thank you for keeping that package up to date with good practices !")
if __name__ == '__main__':