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✎ Editing: alt-mysql-reconfigure ← Back

#!/usr/bin/env python
# -*- mode:python; coding:utf-8; -*-
# author: Eugene Zamriy <ezamriy@cloudlinux.com>,
#         Sergey Fokin <sfokin@cloudlinux.com>
# editor: Eduard Chiganov <echiganov@cloudlinux.com>
# created: 29.07.2015 15:46
# edited: Eduard Chiganov 05.2025 16:20
# description: Selects correct alt-php MySQL binding according to the system
#              configuration.

import getopt
import glob
import logging
import os
import platform
import re
import subprocess
import sys
import traceback
from decimal import Decimal

try:
    import rpm
except:
    class rpm:
        RPMMIRE_REGEX = None
        class pattern:
            def __init__(self, packages):
                self.packages = packages
            def pattern(self, field, flag, pattern):
                regexp = re.compile(pattern)
                self.packages = list(filter(regexp.match, self.packages))
            def __getitem__(self, item):
                return self.packages[item]
        class TransactionSet:
            @staticmethod
            def dbMatch():
                return rpm.pattern(os.popen('rpm -qa').readlines())

VER_PATTERNS = {"18.1": "5.6", "18.1.0": "5.6", "18.0": "5.5", "18.0.0": "5.5",
                "18": "5.5", "16": "5.1", "15": "5.0", "20.1": "5.7",
                "20.2": "5.7", "20.3": "5.7", "21.0": "8.0", "21.2": "8.0", "24.0.5": "8.4"}

def is_debian():
    """
    Check if we running on Debian/Ubuntu

@rtype  : bool
    @return  True or False
    """
    if os.path.exists("/etc/redhat-release"):
        return False
    return True

def is_plesk():
    """
    Check is it environment with installed plesk panel

@rtype  : bool
    @return  True or False
    """
    if not os.path.exists("/usr/sbin/plesk"):
        return False
    return True

def has_cagefs():
    """
    Check if we're in environment with enabled cagefs

@rtype  : bool
    @return  True or False
    """
    if not os.path.exists("/usr/sbin/cagefsctl"):
        return False

with open(os.devnull, 'wb') as devnull:
        result = subprocess.call(
            ["/usr/sbin/cagefsctl", "--cagefs-status"],
            stdout=devnull,
            stderr=devnull
        )
    return result == 0

def is_bare_plesk():
    """
    Check is it environment with installed plesk panel on clean ELS system without cagefs

@rtype  : bool
    @return  True or False
    """
    return is_plesk() and not has_cagefs()

def configure_logging(verbose):
    """
    Logging configuration function.

@type verbose:  bool
    @param verbose: Enable additional debug output if True, display only errors
        otherwise.
    """
    if verbose:
        level = logging.DEBUG
    else:
        level = logging.ERROR
    handler = logging.StreamHandler()
    handler.setLevel(level)
    log_format = "%(levelname)-8s: %(message)s"
    formatter = logging.Formatter(log_format, "%H:%M:%S %d.%m.%y")
    handler.setFormatter(formatter)
    logger = logging.getLogger()
    logger.addHandler(handler)
    logger.setLevel(level)
    return logger

def symlink_abs_path(path):
    """
    Recursively resolves symlink.

@type path:  str
    @param path: Symlink path.

@rtype:      str
    @return:     Resolved symlink absolute path.
    """
    processed_symlinks = set()
    if not isinstance(path, str):
        return None
    while os.path.islink(path):
        if path in processed_symlinks:
            return None
        path = os.path.join(os.path.dirname(path), os.readlink(path))
        processed_symlinks.add(path)
    return os.path.abspath(path)

def create_symlink_to_mysqli_ini(source_dir, target_dir):
    """
    Creates or updates a symbolic link to mysqli.ini.

@type source_dir: str
    @param source_dir: Directory containing the actual mysqli.ini file.

@type target_dir: str
    @param target_dir: Directory where the symlink will be created or updated.

@rtype: bool
    @return: True if symlink is created or updated successfully, False otherwise.
    """
    source_path = os.path.join(source_dir, 'mysqli.ini')
    target_path = os.path.join(target_dir, 'mysqli.ini')

if is_bare_plesk():
        return False
    else:
        try:
            # Remove the target file/symlink if it exists (mimic --force)
            if os.path.exists(target_path) and not os.path.islink(target_path):
                os.remove(target_path)

if source_path == symlink_abs_path(target_path):
                logging.debug(u"%s is already configured to %s" % (target_path, source_path))
                return True

# Create the symlink
            os.symlink(source_path, target_path)
            logging.info(u"Symlink created or updated: %s -> %s" % (target_path, source_path))
            return True

except Exception as e:
            logging.error(u"Error creating or updating symlink: %s" % str(e))
            return False

def find_interpreter_versions(interpreter="php"):
    """
    Returns list of installed alt-php versions and their base directories.

@rtype:  list
    @return: List of version (e.g. 44, 55) and base directory tuples.
    """
    int_versions = []
    if interpreter == "ea-php":
        base_path_regex = "/opt/cpanel/ea-php[0-9][0-9]/root/"
    else:
        base_path_regex = "/opt/alt/%s[0-9][0-9]" % interpreter
    for int_dir in glob.glob(base_path_regex):
        int_versions.append((int_dir[-2:], int_dir))
    int_versions.sort()
    return int_versions

def find_mysql_executable(mysql="mysql"):
    """
    Detects MySQL binary full path.

@type mysql:  str
    @param mysql: MySQL binary name (default is "mysql").

@rtype:       str or None
    @return:      MySQL binary full path or None if nothing is found.
    """
    for path in os.environ["PATH"].split(os.pathsep):
        mysql_path = os.path.join(path, mysql)
        if os.path.exists(mysql_path) and os.access(mysql_path, os.X_OK):
            if os.path.islink(mysql_path):
                return os.readlink(mysql_path)
            else:
                return mysql_path

def is_percona(major, minor):
    """
    Check if Percona server is installed

@type major:  str
    @param major: major version of sql server
    @type minor:  str
    @param minor: minor version of sql server

@rtype:       bool
    @return:      True or False
    """
    if is_debian():
        if not os.system("dpkg -l | grep -i percona-server"):
            return True
    else:
        ts = rpm.TransactionSet()
        mi = ts.dbMatch()
        pattern = "Percona-Server-shared-{0}{1}|cl-Percona{0}{1}-shared".format(
            major, minor)
        mi.pattern('name', rpm.RPMMIRE_REGEX, pattern)
        for _ in mi:
            mysql_type = "percona"
            return True
    return False

def parse_mysql_version(version):
    """
    Extracts MySQL engine type and version from the version string
    (mysql -V output).

@type version:  str
    @param version: MySQL version string (mysql -V output).

@rtype:         tuple
    @return:        MySQL engine type (e.g. mariadb, mysql) and version (e.g.
        5.6, 10.0) tuple.
    """
    ver_rslt = ""
    if re.search(r"mysql", version, re.IGNORECASE):
        ver_rslt = re.search(r"mysql\s+Ver\s+.*?Distrib\s+((\d+)\.(\d+)\S*?),?\s+for",
                             version)
        if not ver_rslt:
            ver_rslt = re.search(r"mysql\s+Ver\s+((\d+)\.(\d+)\S*)", version)
    else:
        ver_rslt = re.search(r"mariadb\s+from\s+((\d+)\.(\d+)\S*?),?\s+", version)
        if not ver_rslt:
            ver_rslt = re.search(r"mariadb\s+Ver\s+.*?Distrib\s+((\d+)\.(\d+)\S*?),?"
                             r"\s+for", version)
    if not ver_rslt:
        return None, None
    full_ver, major, minor = ver_rslt.groups()
    mysql_type = "mysql"
    mysql_ver = "%s.%s" % (major, minor)
    if re.search(r"mariadb", full_ver, re.IGNORECASE):
        mysql_type = "mariadb"
    # NOTE: there are no way to detect Percona by "mysql -V" output, so we
    #       are looking for Percona-Server-shared* or cl-Percona*-shared package installed
    if is_percona(major, minor):
        mysql_type = "percona"
    return mysql_type, mysql_ver

def get_mysql_version(mysql_path):
    """
    Returns MySQL engine type and version of specified MySQL executable.

@type mysql_path:  str
    @param mysql_path: MySQL executable path.

@rtype:            tuple
    @return:           MySQL engine type (mariadb or mysql) and version (e.g.
        5.6, 10.0) tuple.
    """
    proc = subprocess.Popen([mysql_path, "-V"], stdout=subprocess.PIPE,
                            stderr=subprocess.STDOUT, universal_newlines=True)
    out, _ = proc.communicate()
    if proc.returncode != 0:
        raise Exception(u"cannot execute \"%s -V\": %s" % (mysql_path, out))
    ver_string = out.strip()
    logging.debug(u"SQL version string is '%s'" % ver_string)
    return parse_mysql_version(ver_string)

def detect_so_version(so_path):
    """
    Parameters
    ----------
    so_path         : str or unicode
        Absolute path to .so library

Returns
    -------
    tuple
        Tuple of MySQL type name and MySQL version

"""
    mysql_ver = None
    for ver_pattern in VER_PATTERNS:
        if re.search(re.escape(".so.%s" % ver_pattern), so_path):
            mysql_ver = VER_PATTERNS[ver_pattern]
            if is_debian():
                mysql_ver = mysql_ver.replace(".", "")
    # in some Percona builds .so was renamed to libperconaserverclient.so
    if "libperconaserverclient.so" in so_path:
        return "percona", mysql_ver
    # search for markers (mariadb/percona) in .so strings
    proc = subprocess.Popen(["strings", so_path], stdout=subprocess.PIPE,
                            stderr=subprocess.STDOUT, universal_newlines=True)
    out, _ = proc.communicate()
    if proc.returncode != 0:
        raise Exception(u"cannot execute \"strings %s\": %s" % (so_path, out))
    mysql_type = "mysql"
    for line in out.split("\n"):
        if re.search(r"percona", line, re.IGNORECASE):
            return "percona", mysql_ver
        maria_version = re.search(r"^(1[0-1]\.[0-9]+)\.[0-9]*(-MariaDB)?$", line,
                                  re.IGNORECASE)
        if maria_version is not None and len(maria_version.groups()) != 0:
            return "mariadb", maria_version.group(1)
        if re.search(r"5\.5.*?-MariaDB", line, re.IGNORECASE):
            return "mariadb", "5.5"
        if re.search(r"mariadb", line, re.IGNORECASE):
            mysql_type = "mariadb"
    return mysql_type, mysql_ver

def detect_lib_dir():
    """
    Returns
    -------
    str
        lib if running on 32-bit system, lib64 otherwise

"""
    if is_debian():
        return "lib/x86_64-linux-gnu"
    if platform.architecture()[0] == "64bit":
        return "lib64"
    else:
        return "lib"

def get_int_files_root_path(int_name, int_ver):
    """
    Parameters
    ----------
    int_name        : str or unicode
        Interpreter name (php, python)
    int_ver         : str or unicode
        Interpreter version (44, 70, 27, etc.)

Returns
    -------
    str
        Absolute path to interpreter root

"""
    if int_name == "php":
        return "/opt/alt/php%s" % int_ver
    elif int_name == "ea-php":
        return "/opt/cpanel/ea-php%s/root/" % int_ver
    elif int_name == "python":
        return "/opt/alt/python%s" % int_ver
    else:
        raise NotImplementedError("Unknown interpreter")

def get_dst_so_path(int_name, int_ver, so_name):
    """
    Parameters
    ----------
    int_name        : str or unicode
        Interpreter name (php, python)
    int_ver         : str or unicode
        Interpreter version (44, 70, 27, etc.)
    so_name         : str or unicode
        MySQL shared library name

Returns
    -------
    str
        Absolute path to MySQL binding destination point

"""
    lib_dir = detect_lib_dir()
    int_path = get_int_files_root_path(int_name, int_ver)
    int_dot_ver = "%s.%s" % (int_ver[0], int_ver[-1])
    if int_name in ["php", "ea-php"]:
        if re.match(r".*_ts.so", so_name):
            return os.path.join(int_path, "usr", lib_dir, "php-zts/modules", re.sub(r'_ts\.so', '.so', so_name))
        else:
            return os.path.join(int_path, "usr", lib_dir, "php/modules", so_name)
    elif int_name == "python":
        if os.path.exists("/opt/alt/python{0}/bin/python{1}".format(int_ver, int_ver[0])):
            proc = subprocess.Popen("/opt/alt/python{0}/bin/python{1} -c \"from distutils.sysconfig import get_python_lib; print(get_python_lib(True))\"".format(int_ver, int_ver[0]),
                                    shell=True,
                                    stdout=subprocess.PIPE,
                                    stderr=subprocess.STDOUT,
                                    universal_newlines=True)
            out, _ = proc.communicate()
            return os.path.join(out.strip(),so_name)
    else:
        raise NotImplementedError("Unknown interpreter")

def get_mysql_pkg_name(int_name, int_ver, mysql_type, mysql_ver, zts=False):
    """
    Parameters
    ----------
    int_name        : str or unicode
        Interpreter name (php, python)
    int_ver         : str or unicode
        Interpreter version (44, 27, 71, etc.)
    mysql_type      : str or unicode
        Mysql base type (mysql, mariadb, percona)
    mysql_ver       : str or unicode
        Mysql version (5.5, 10, 10.1)

Returns
    -------

"""
    if int_name == "php":
        if not zts:
            return "alt-php%s-%s%s" % (int_ver, mysql_type, mysql_ver)
        else:
            return "alt-php%s-%s%s-zts" % (int_ver, mysql_type, mysql_ver)
    elif int_name == "ea-php":
        return "%s%s-php-%s%s" % (int_name, int_ver, mysql_type, mysql_ver)
    elif int_name == "python":
        return "alt-python%s-MySQL-%s%s" % (int_ver, mysql_type, mysql_ver)
    else:
        raise NotImplementedError("Unknown interpreter")

def get_so_list(int_name):
    """
    Parameters
    ----------
    int_name        : str
        Interpreter name (e.g. php, python, etc.)

Returns
    -------

"""
    if int_name == "ea-php":
        return ["mysql.so", "mysqli.so", "pdo_mysql.so"]
    elif int_name == "php":
        if is_bare_plesk():
            return ["mysql.so", "mysqli.so", "pdo_mysql.so"]
        else:
            return ["mysql.so", "mysqli.so", "pdo_mysql.so", "mysql_ts.so",
                    "mysqli_ts.so", "pdo_mysql_ts.so"]
    elif int_name == "python":
        return ["_mysql.so"]
    else:
        raise NotImplementedError("Unknown interpreter")

def match_so_to_mysql():
    mysql = find_mysql_executable()
    # If we have no MySQL, then nothing should be done
    if not mysql:
        return
    possible_versions = list(VER_PATTERNS.values())
    possible_versions += ["10", "10.0", "10.1", "10.2", "10.3", "10.4", "10.5",
                          "10.6", "10.11", "11.4","11.04", "11.8"]
    mysql_type, mysql_ver = get_mysql_version(mysql)
    if is_debian():
        mysql_ver = mysql_ver.replace(".", "")
    if mysql_type not in ["mysql", "mariadb", "percona"] or \
            mysql_ver not in possible_versions:
        return
    if mysql_ver == "5.0":
        search_pattern = re.compile(r"(\S*libmysqlclient\.so\.15\S*)")
    elif mysql_ver == "5.1":
        search_pattern = re.compile(r"(\S*libmysqlclient\.so\.16\S*)")
    elif mysql_ver in ("5.5", "10", "10.0", "10.1"):
        search_pattern = re.compile(r"(\S*libmysqlclient\.so\.18\.0\S*)")
    elif mysql_ver == "5.6":
        search_pattern = re.compile(r"(\S*libmysqlclient\.so\.18\.1\S*)")
    elif mysql_ver == "5.7":
        search_pattern = re.compile(r"(\S*libmysqlclient\.so\.20\S*)")
    elif mysql_ver == "8.0":
        search_pattern = re.compile(r"(\S*libmysqlclient\.so\.21\S*)")
    elif mysql_ver == "8.4":
        search_pattern = re.compile(r"(\S*libmysqlclient\.so\.24\S*)")
    elif mysql_ver in ("10.2", "10.3", "10.4", "10.5", "10.6", "10.11", "11.04", "11.4", "11.8"):
        search_pattern = re.compile(r"(\S*libmariadb\.so\.3\S*)")
    else:
        raise Exception(u"Cannot match MySQL library to any version")
    if mysql_type == "percona":
        search_path = ["/usr/%s" % detect_lib_dir()]
    else:
        search_path = ["/usr/local/mysql/lib/",            # Added path for Direect Admin
                       "/usr/%s/" % detect_lib_dir(),
                       "/usr/%s/mysql" % detect_lib_dir(),
                       "/usr/%s/mariadb" % detect_lib_dir()]
    files = []
    for libs_path in search_path:
        if os.path.exists(libs_path):
            for file in os.listdir(libs_path):
                files.append(os.path.join(libs_path, file))
    for one_file in files:
        if search_pattern.match(one_file):
            return (search_pattern.match(one_file).string,
                    mysql_type, mysql_ver)

def get_mysql_so_files():
    proc = subprocess.Popen(["/sbin/ldconfig", "-p"], stdout=subprocess.PIPE,
                            universal_newlines=True)
    out, _ = proc.communicate()
    if proc.returncode != 0:
        raise Exception(u"cannot execute \"ldconfig -p\": %s" % out)
    so_re = re.compile(r"^.*?=>\s*(\S*?(libmysqlclient|"
                       r"libmariadb|"
                       r"libperconaserverclient)\.so\S*)")
    forced_so_file = match_so_to_mysql()
    if forced_so_file:
        so_files = [forced_so_file]
    else:
        so_files = []
    for line in out.split("\n"):
        re_rslt = so_re.search(line)
        if not re_rslt:
            continue
        so_path = symlink_abs_path(re_rslt.group(1))
        if not so_path or not os.path.exists(so_path):
            continue
        mysql_type, mysql_ver = detect_so_version(so_path)
        so_rec = (so_path, mysql_type, mysql_ver)
        if so_rec not in so_files:
            so_files.append(so_rec)
    return so_files

def reconfigure_mysql(int_ver, mysql_type, mysql_ver, force=False,
                      int_name="php"):
    """
    Parameters
    ----------
    int_ver         : str or unicode
        Interpreter version (44, 70, 27, etc.)
    mysql_type      : str or unicode
        MySQL type (mysql, mariadb, percona)
    mysql_ver       : str or unicode
        MySQL version (5.5, 10.1, etc.)
    force           : bool
        Force symlink reconfiguration if True, do nothing otherwise
    int_name        : str or unicode
        Optional, defines interpreter name (php, python). Default is php

Returns
    -------
    bool
        True if reconfiguration was successful, False otherwise

"""
    int_dir = get_int_files_root_path(int_name, int_ver)
    if is_bare_plesk():
        so_list = get_so_list(int_name)
        for so_name in so_list:
            src_so = get_dst_so_path(int_name, int_ver, "nd_%s" % so_name)
            dst_so = get_dst_so_path(int_name, int_ver, so_name)
            if os.path.exists(src_so):
                try:
                    if os.path.exists(dst_so):
                        os.remove(dst_so)
                    os.symlink(src_so, dst_so)
                except Exception as e:
                    logging.error(u"Error creating symlink: %s" % str(e))
        return True
    if mysql_type == "mariadb":
        if mysql_ver in ("10", "10.0"):
            mysql_ver = "10"
        elif mysql_ver.startswith("10."):
            mysql_ver = mysql_ver.replace(".", "")
        elif mysql_ver.startswith("11."):
            mysql_ver = mysql_ver.replace(".", "0")
        elif mysql_ver == "5.5":
            # NOTE: there are no special bindings for MariaDB 5.5 in Cloud Linux
            #       so we are using the MySQL one
            mysql_type = "mysql"
    so_list = get_so_list(int_name)
    for so_name in so_list:
        src_so = os.path.join(int_dir, "etc",
                              "%s%s" % (mysql_type, mysql_ver), so_name)
        if not os.path.exists(src_so):
            if (so_name in ("mysqli.so", "pdo_mysql.so") and int_ver == "44") \
                    or (so_name == "mysql.so" and int_ver.startswith("7")) \
                    or (so_name == "mysql.so" and int_ver.startswith("8")) \
                    or (re.match(r".*_ts.so", so_name) and int_ver != 72):
                # NOTE: there are no mysql.so for alt-php7X and mysqli.so /
                #       pdo_mysql.so for alt-php44
                continue
            # TODO: maybe find an appropriate replacement for missing
            #       .so in other alt-php-(mysql|mariadb|percona) packages?
            mysql_pkg_name = get_mysql_pkg_name(int_name, int_ver, mysql_type,
                                                mysql_ver,
                                                bool(re.match(r".*_ts.so",
                                                     so_name)))
            logging.debug(u"%s is not found. Please install "
                          u"%s package" % (so_name, mysql_pkg_name))
            return False
        dst_so = get_dst_so_path(int_name, int_ver, so_name)
        dst_so_real = symlink_abs_path(dst_so)
        if src_so == dst_so_real:
            logging.debug(u"%s is already updated" % dst_so)
            continue
        else:
            force = True
        if not isinstance(dst_so, str):
            return False
        if os.access(dst_so, os.R_OK):
            # seems alt-php is already configured - don't touch without force
            # argument
            if not force:
                logging.debug(u"current %s configuration is ok (%s)" %
                              (dst_so, dst_so_real))
                continue
            os.remove(dst_so)
            os.symlink(src_so, dst_so)
            logging.info(u"%s was reconfigured to %s" % (dst_so, src_so))
        else:
            # seems current alt-php configuration is broken, reconfigure it
            try:
                os.remove(dst_so)
            except:
                pass
            os.symlink(src_so, dst_so)
            logging.info(u"%s was configured to %s" % (dst_so, src_so))
        continue
    return True

def check_alt_path_exists(int_path, int_name, int_ver):
    """
    Parameters
    ----------
    int_path        : str or unicode
        Interpreter directory on the disk (/opt/alt/php51, etc.)
    int_name        : str or unicode
        Interpreter name (php, python)
    int_ver         : str or unicode
        Interpreter version (44, 70, 27, etc.)

Returns
    -------
    bool
        True if interpreter path exists, False otherwise

"""
    if not os.path.isdir(int_path):
        sys.stderr.write("unknown {0} version {1}".format(int_name, int_ver))
        return False
    return True

def main(sys_args):
    try:
        opts, args = getopt.getopt(sys_args, "p:P:e:v",
                                   ["php=", "python=", "ea-php=", "verbose"])
    except getopt.GetoptError as e:
        sys.stderr.write("cannot parse command line arguments: {0}".format(e))
        return 1
    verbose = False
    int_versions = []
    int_name = "php"
    for opt, arg in opts:
        if opt in ("-p", "--php"):
            int_name = "php"
            int_path = "/opt/alt/php%s" % arg
            if check_alt_path_exists(int_path, int_name, arg):
                int_versions.append((arg, int_path))
            else:
                return 1
        elif opt in ("-e", "--ea-php"):
            int_name = "ea-php"
            int_path = "/opt/cpanel/ea-php%s/root/" % arg
            if check_alt_path_exists(int_path, int_name, arg):
                int_versions.append((arg, int_path))
            else:
                return 1
        elif opt == "--python":
            int_name = "python"
            int_path = "/opt/alt/python%s" % arg
            if check_alt_path_exists(int_path, int_name, arg):
                int_versions.append((arg, int_path))
            else:
                return 1
        if opt in ("-v", "--verbose"):
            verbose = True
    log = configure_logging(verbose)
    if int_name == "ea-php":
        int_group = int_name
    else:
        int_group = "alt-%s" % int_name
    if not int_versions:
        int_versions = find_interpreter_versions()
    log.info(u"installed %s versions are\n%s" % (int_group,
             "\n".join(["\t %s: %s" % (int_group, i) for i in int_versions])))
    mysql_so_files = get_mysql_so_files()
    log.info(u"available SQL so files are\n%s" %
             "\n".join(["\t%s (%s-%s)" % i for i in mysql_so_files]))
    # skip reconfigure magick if file exists
    if os.path.exists("/opt/alt/alt-php-config/disable"):
        log.info(u"skip reconfiguration, because '/opt/alt/alt-php-config/disable' exists")
        return True
    try:
        mysql_path = find_mysql_executable()
        if not mysql_path:
            log.info(u"cannot find system SQL binary")
            for int_ver, int_dir in int_versions:
                status = False
                for so_name, so_type, so_ver in mysql_so_files:
                    if reconfigure_mysql(int_ver, so_type, so_ver,
                                         force=False, int_name=int_name):
                        status = True
                        break
                if not status:
                    log.debug(u"alt-%s%s reconfiguration is failed" %
                              (int_name, int_ver))
        else:
            log.debug(u"system SQL binary path is %s" % mysql_path)
            mysql_type, mysql_ver = get_mysql_version(mysql_path)
            log.debug(u"system SQL is %s-%s" % (mysql_type, mysql_ver))
            # check if we have .so for the system SQL version
            mysql_so_exists = False
            for so_name, so_type, so_ver in mysql_so_files:
                if so_type == mysql_type and so_ver == mysql_ver:
                    mysql_so_exists = True
                    break
            # reconfigure alt-php symlinks
            for int_ver, int_dir in int_versions:
                # system SQL was correctly detected and we found .so for it -
                # reconfigure alt-php to use it instead of previous
                # configuration
                if (mysql_so_exists or is_bare_plesk()) and \
                        reconfigure_mysql(int_ver, mysql_type, mysql_ver,
                                          force=True, int_name=int_name):
                    ini_src_path = "%s/etc/php.d.all" % get_int_files_root_path(int_name, int_ver)
                    ini_dst_path = "%s/etc/php.d" % get_int_files_root_path(int_name, int_ver)
                    if int_name == "php":
                        create_symlink_to_mysqli_ini(ini_src_path,ini_dst_path)
                    continue
                # we are unable to detect system SQL or it's .so is missing -
                # reconfigure alt-php to use .so that we have available, but
                # only if current configuration is broken
                status = False
                for so_name, so_type, so_ver in mysql_so_files:
                    if reconfigure_mysql(int_ver, so_type, so_ver, force=False,
                                         int_name=int_name):
                        status = True
                        ini_src_path = "%s/etc/php.d.all" % get_int_files_root_path(int_name, int_ver)
                        ini_dst_path = "%s/etc/php.d" % get_int_files_root_path(int_name, int_ver)
                        if int_name == "php":
                            create_symlink_to_mysqli_ini(ini_src_path,ini_dst_path)
                        break
                if not status:
                    log.debug(u"alt-%s%s reconfiguration is failed" %
                              (int_name, int_ver))
    except Exception as e:
        log.error(u"cannot reconfigure alt-%s SQL bindings: %s. "
                  u"Traceback:\n%s" % (int_name, e,
                                       traceback.format_exc()))
        return 1

if __name__ == "__main__":
    sys.exit(main(sys.argv[1:]))

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