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?? Editing: isp.py

# Copyright © Cloud Linux GmbH & Cloud Linux Software, Inc 2010-2024 All Rights Reserved
#
# Licensed under CLOUD LINUX LICENSE AGREEMENT
# http://cloudlinux.com/docs/LICENSE.TXT
import os
import pwd
import sys

import cldetectlib as detect
import secureio
from clcommon import clcaptain
from clcommon.utils import ExternalProgramFailed

# Create user wrapper for ISP.
# Call also from cl-selector with username and PHP ver only
def ispmanager_create_user_wrapper(username, user_php_ver, user_data=None, is_write_log=False):
    # Only for ISP Manager v4.x
    detect.getCP()
    if not detect.is_ispmanager() or not detect.CP_VERSION.startswith('4'):
        return

# 1. Check rights
    if user_data is None:
        user_data = pwd.getpwnam(username)

uid = user_data.pw_uid
    gid = user_data.pw_gid
    process_uid = os.geteuid()

if process_uid != uid:
        # we work not as the specified user, drop permissions required
        drop_perm = True
    else:
        # we run under user, drop not needed
        uid = None
        gid = None
        drop_perm = False

# 2. Create wrapper with the proper content (if it isn't present) in user dir
    user_wrapper_file = os.path.join(user_data.pw_dir, 'php-bin/php')
    write_wrapper(user_wrapper_file, user_php_ver, uid, gid, drop_perm, is_write_log)

# 3. Create wrapper with the proper content (if it isn't present) in /var/www/php-bin/[user]
    PATH_MASK = "/var/www/php-bin/%s"
    user_wrapper_file = os.path.join(PATH_MASK % username, "php")
    write_wrapper(user_wrapper_file, user_php_ver, uid, gid, drop_perm, is_write_log)

# Creates user wrapper
def write_wrapper(wrapper_filename, user_php_ver, uid, gid, drop_perm, is_write_log):
    def create_wrapper():
        if drop_perm:
            secureio.write_file_secure([s_wrapper_contents], wrapper_filename, uid, gid, drop_perm, 0o555, is_write_log)
        else:
            try:
                clcaptain.write(wrapper_filename, s_wrapper_contents)
                os.chmod(wrapper_filename, 0o555)
            except (OSError, IOError, ExternalProgramFailed) as e:
                secureio.logging("Error: failed to write file " + wrapper_filename + ": " + str(e), secureio.SILENT_FLAG, 1, is_write_log)

dir_name = os.path.dirname(wrapper_filename)

if os.path.isdir(dir_name):
        # wrapper backup file
        bak_wrapper_filename = wrapper_filename+'.cagefs.bak'

# determine wrapper content
        if user_php_ver == 'native':
            s_wrapper_contents = "#!/usr/bin/php-cgi\n"
        else:
            s_wrapper_contents = "#!/usr/local/bin/php-cgi-etc\n"

if not os.path.lexists(wrapper_filename):
            # there is no wrapper, create it
            create_wrapper()
            return

# wrapper already present
        try:
            content = secureio.read_file_secure(wrapper_filename, uid, gid, False, is_write_log)
        except (OSError, IOError) as e:
            secureio.logging("Error: failed to read file " + wrapper_filename + ": " + str(e), secureio.SILENT_FLAG, 1, is_write_log)
            return

if not content:
            # empty wrapper, create it
            create_wrapper()
            return

# change wrapper content according to required PHP version
        if content[0].strip() == "#!/usr/local/bin/php-cgi-etc":
            # alt version wrapper found
            if user_php_ver == 'native':
                # and switch to native
                if os.path.lexists(bak_wrapper_filename) and os.path.getsize(bak_wrapper_filename) > 0:
                    # backup copy present and is not empty, restore it to wrapper
                    rename_file_secure(bak_wrapper_filename, wrapper_filename, uid, gid, write_log=is_write_log)
                else:
                    # if backup copy is absent or empty, create our native wrapper
                    create_wrapper()
        else:
            # native wrapper found
            if user_php_ver != 'native':
                # switch to alt version
                # make backup copy old wrapper: copy php to php.cagefs.bak
                if drop_perm:
                    secureio.write_file_secure(content, bak_wrapper_filename, uid, gid, drop_perm, 0o444, is_write_log)
                else:
                    try:
                        clcaptain.write(bak_wrapper_filename, ''.join(content))
                        os.chmod(bak_wrapper_filename, 0o444)
                    except (OSError, IOError, ExternalProgramFailed) as e:
                        secureio.logging("Error: failed to write file " + bak_wrapper_filename + ": " + str(e), secureio.SILENT_FLAG, 1, is_write_log)
                # create wrapper
                create_wrapper()

# rename file with drop permissions
def rename_file_secure(old_filename, new_filename, uid=None, gid=None, exit_on_error=False, write_log=True):
    drop_perm = (uid is not None) and (gid is not None)
    if drop_perm:
        secureio.set_user_perm(uid, gid)

is_error = False

# if backup present, rename it to wrapper
    try:
        os.rename(old_filename, new_filename)
        os.chmod(new_filename, 0o555)
    except (OSError, IOError) as e:
        secureio.logging("Error: failed to rename " + old_filename + " to " + new_filename + ": " + str(e), secureio.SILENT_FLAG, 1, write_log)
        is_error = True

if drop_perm:
        secureio.set_root_perm()

if is_error and exit_on_error:
        sys.exit(1)

return is_error

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