# coding:utf-8

# ---------------------------------------------------------------------------------
# MW-Linux面板
# ---------------------------------------------------------------------------------
# copyright (c) 2018-∞(https://github.com/midoks/mdserver-web) All rights reserved.
# ---------------------------------------------------------------------------------
# Author: midoks <midoks@163.com>
# ---------------------------------------------------------------------------------

import os
import pwd
import time

from admin import model

import core.mw as mw
import thisdb

def setFileAccept(filename):
    auth = 'www:www'
    if mw.getOs() == 'darwin':
        user = mw.execShell("who | sed -n '2, 1p' |awk '{print $1}'")[0].strip()
        auth = user + ':staff'
    os.system('chown -R ' + auth + ' ' + filename)
    os.system('chmod -R 755 ' + filename)

def createDir(path):
    try:
        if not checkFileName(path):
            return mw.returnData(False, '目录名中不能包含特殊字符!')
        if os.path.exists(path):
            return mw.returnData(False, '指定目录已存在!')
        os.makedirs(path)
        setFileAccept(path)
        msg = mw.getInfo('创建目录[{1}]成功!', (path,))
        mw.writeLog('文件管理', msg)
        return mw.returnData(True, '目录创建成功!')
    except Exception as e:
        print(e)
        return mw.returnData(False, '目录创建失败!')

# 检查敏感目录
def checkDir(path):
    path = path.replace('//', '/')
    if path[-1:] == '/':
        path = path[:-1]

    sense_dir = ('',
        '/',
        '/*',
        '/www',
        '/root',
        '/boot',
        '/bin',
        '/etc',
        '/home',
        '/dev',
        '/sbin',
        '/var',
        '/usr',
        '/tmp',
        '/sys',
        '/proc',
        '/media',
        '/mnt',
        '/opt',
        '/lib',
        '/srv',
        '/selinux',
        '/www/server',
        mw.getRootDir())
    return not path in sense_dir

def getFileBody(path):
    if not os.path.exists(path):
        return mw.returnData(False, '文件不存在', (path,))

    if os.path.getsize(path) > 2097152:
        return mw.returnData(False, '不能在线编辑大于2MB的文件!')

    if os.path.isdir(path):
        return mw.returnData(False, '这不是一个文件!')

    fp = open(path, 'rb')
    data = {}
    data['status'] = True
    if fp:
        srcBody = fp.read()
        fp.close()

        encoding_list = ['utf-8', 'GBK', 'BIG5']
        for el in encoding_list:
            try:
                data['encoding'] = el
                data['data'] = srcBody.decode(data['encoding'])
                break
            except Exception as ex:
                if el == 'BIG5':
                    return mw.returnData(False, '文件编码不被兼容，无法正确读取文件!' + str(ex))
    else:
        return mw.returnData(False, '文件未正常打开!')
    return mw.returnData(True, 'OK', data)

def saveBody(path, data, encoding):
    if not os.path.exists(path):
        return mw.returnData(False, '文件不存在')
    try:
        if encoding == 'ascii':
            encoding = 'utf-8'

        data = data.encode(encoding, errors='ignore').decode(encoding)
        fp = open(path, 'w+', encoding=encoding)
        fp.write(data)
        fp.close()

        if path.find("web_conf") > 0:
            mw.restartWeb()
        mw.writeLog('文件管理', '文件[{1}]保存成功', (path,))
        return mw.returnData(True, '文件保存成功')
    except Exception as ex:
        return mw.returnData(False, '文件保存错误:' + str(ex))

# 获取文件权限描述
def getFileStatsDesc(
    filename: str | None = None,
    path: str | None = None,
):
    if path is None or filename is None:
        return ';;;;;'
    filename = filename.replace('//', '/')
    try:
        stat = os.stat(filename)
        accept = str(oct(stat.st_mode)[-3:])
        mtime = str(int(stat.st_mtime))
        user = ''
        try:
            user = str(pwd.getpwuid(stat.st_uid).pw_name)
        except:
            user = str(stat.st_uid)
        size = str(stat.st_size)
        link = ''
        if os.path.islink(filename):
            link = ' -> ' + os.readlink(filename)

        if path:
            path_t = (path + '/').replace('//', '/')
            filename = filename.replace(path_t, '', 1)

        return filename + ';' + size + ';' + mtime + ';' + accept + ';' + user + ';' + link
    except Exception as e:
        print(str(e))
        return ';;;;;'


def sortFileList(path, ftype = 'mtime', sort = 'desc'):
    flist = os.listdir(path)
    if ftype == 'mtime':
        if sort == 'desc':
            flist = sorted(flist, key=lambda f: os.path.getmtime(os.path.join(path,f)), reverse=True)
        if sort == 'asc':
            flist = sorted(flist, key=lambda f: os.path.getmtime(os.path.join(path,f)), reverse=False)

    if ftype == 'size':
        if sort == 'desc':
            flist = sorted(flist, key=lambda f: os.path.getsize(os.path.join(path,f)), reverse=True)
        if sort == 'asc':
            flist = sorted(flist, key=lambda f: os.path.getsize(os.path.join(path,f)), reverse=False)

    if ftype == 'fname':
        if sort == 'desc':
            flist = sorted(flist, key=lambda f: os.path.join(path,f), reverse=True)
        if sort == 'asc':
            flist = sorted(flist, key=lambda f: os.path.join(path,f), reverse=False)
    return flist

def sortAllFileList(path, ftype = 'mtime', sort = 'desc', search = '',limit = 3000):
    count = 0
    flist = []
    for d_list in os.walk(path):
        if count >= limit:
            break

        for d in d_list[1]:
            if count >= limit:
                break
            if d.lower().find(search) != -1:
                filename = d_list[0] + '/' + d
                if not os.path.exists(filename):
                    continue
                count += 1
                flist.append(filename)

        for f in d_list[2]:
            if count >= limit:
                break

            if f.lower().find(search) != -1:
                filename = d_list[0] + '/' + f
                if not os.path.exists(filename):
                    continue
                count += 1
                flist.append(filename)

    if ftype == 'mtime':
        if sort == 'desc':
            flist = sorted(flist, key=lambda f: os.path.getmtime(f), reverse=True)
        if sort == 'asc':
            flist = sorted(flist, key=lambda f: os.path.getmtime(f), reverse=False)

    if ftype == 'size':
        if sort == 'desc':
            flist = sorted(flist, key=lambda f: os.path.getsize(f), reverse=True)
        if sort == 'asc':
            flist = sorted(flist, key=lambda f: os.path.getsize(f), reverse=False)
    return flist

def getAllDirList(path, page=1, size=10, order = '', search=None):
    if page < 1:
        page == 1

    data = {}
    dirnames = []
    filenames = []
    
    max_limit = 3000
    order_split = order.split(' ')
    if len(order_split) < 2:
        flist = sortAllFileList(path, order_split[0],'',search, max_limit)
    else:
        flist = sortAllFileList(path, order_split[0], order_split[1], search, max_limit)

    count = len(flist)
    start = (page - 1) * size
    end = start + size
    if end > count:
        end = count

    plist = flist[start:end]
    for dst_file in plist:
        if not os.path.exists(dst_file):
            continue
        stat = getFileStatsDesc(dst_file, path)
        if os.path.isdir(dst_file):
            dirnames.append(stat)
        else:
            filenames.append(stat)

    data['count'] = count
    data['dir'] = dirnames
    data['files'] = filenames
    data['path'] = path.replace('//', '/')
    return data

def getDirList(path, page=1, size=10, order = '', search=None):
    if page < 1:
        page == 1

    data = {}
    dirnames = []
    filenames = []

    count = getCount(path, search)
    order_split = order.strip().split(' ')
    if len(order_split) < 2:
        flist = sortFileList(path, order_split[0], '')
    else:
        flist = sortFileList(path, order_split[0], order_split[1])

    start = (page - 1) * size
    end = start + size
    if end > count:
        end = count

    
    if search or search != '':
        nlist = []
        for f in flist:
            if f.lower().find(search) == -1:
                continue
            nlist.append(f)
        plist = nlist[start:end]
    else:
        plist = flist[start:end]
    
    for filename in plist:
        abs_file = path + '/' + filename
        if not os.path.exists(abs_file):
            continue

        stats = getFileStatsDesc(abs_file, path)
        if os.path.isdir(abs_file):
            dirnames.append(stats)
        else:
            filenames.append(stats)

    data['count'] = count
    data['dir'] = dirnames
    data['files'] = filenames
    data['path'] = path.replace('//', '/')
    return data

# 检测文件名
def checkFileName(filename):
    nots = ['\\', '&', '*', '|', ';']
    if filename.find('/') != -1:
        filename = filename.split('/')[-1]
    for n in nots:
        if n in filename:
            return False
    return True


# 获取目录大小
def getDirSize(filePath, size=0):
    for root, dirs, files in os.walk(filePath):
        for f in files:
            size += os.path.getsize(os.path.join(root, f))
            # print(f)
    return size

# 获取目录大小(bash)
def getDirSizeByBash(path):
    tmp = mw.execShell('du -sh ' + path)
    return tmp[0].split()[0].lower()

# 计算文件数量
def getCount(path, search = None):
    i = 0
    for name in os.listdir(path):
        if name == '.' or name == '..':
            continue
        if search:
            if name.lower().find(search) == -1:
                continue
        i += 1
    return i

# 获取文件权限
def getAccess(fname):
    data = {}
    try:
        stat = os.stat(fname)
        data['chmod'] = str(oct(stat.st_mode)[-3:])
        data['chown'] = pwd.getpwuid(stat.st_uid).pw_name
    except Exception as e:
        # print(e)
        data['chmod'] = 755
        data['chown'] = 'www'
    return data

def fileDelete(path):
    if not os.path.exists(path):
        return mw.returnData(False, '指定文件不存在!')

    # 检查是否为.user.ini
    if path.find('.user.ini') >= 0:
        cmd = "which chattr && chattr -i {0}".format(path)
        mw.execShell(cmd)

    try:
        recycle_bin = thisdb.getOption('recycle_bin')
        if recycle_bin == 'open':
            if mvRecycleBin(path):
                return mw.returnData(True, '已将文件移动到回收站!')
            return mw.returnData(False, '移动到回收站失败!') 
        os.remove(path)
        mw.writeLog('文件管理', mw.getInfo('删除文件[{1}]成功!', (path,)))
        return mw.returnData(True, '删除文件成功!')
    except Exception as e:
        return mw.returnData(False, '删除文件失败!')

def dirDelete(path):
    if not os.path.exists(path):
        return mw.returnData(False, '指定文件不存在!')

    # 检查是否为.user.ini
    if path.find('.user.ini'):
        os.system("which chattr && chattr -i '" + path + "'")
    try:
        recycle_bin = thisdb.getOption('recycle_bin')
        if recycle_bin == 'open':
            if mvRecycleBin(path):
                return mw.returnData(True, '已将文件移动到回收站!')
        mw.execShell('rm -rf ' + path)
        mw.writeLog('文件管理', '删除{1}成功！', (path,))
        return mw.returnData(True, '删除文件成功!')
    except:
        return mw.returnData(False, '删除文件失败!')

# 关闭
def toggleRecycleBin():
    recycle_bin = thisdb.getOption('recycle_bin')
    if recycle_bin == 'open':
        thisdb.setOption('recycle_bin','close')
        mw.writeLog('文件管理', '已关闭回收站功能!')
        return mw.returnData(True, '已关闭回收站功能!')
    else:
        thisdb.setOption('recycle_bin','open')
        mw.writeLog('文件管理', '已开启回收站功能!')
        return mw.returnData(True, '已开启回收站功能!')

def getRecycleBin():
    rb_dir = mw.getRecycleBinDir()
    recycle_bin = thisdb.getOption('recycle_bin')

    data = {}
    data['dirs'] = []
    data['files'] = []
    data['status'] = False
    if recycle_bin == 'open': 
        data['status'] = True
    
    for file in os.listdir(rb_dir):
        try:
            tmp = {}
            fname = rb_dir+'/'+ file
            tmp1 = file.split('_mw_')
            tmp2 = tmp1[len(tmp1) - 1].split('_t_')
            tmp['rname'] = file
            tmp['dname'] = file.replace('_mw_', '/').split('_t_')[0]
            tmp['name'] = tmp2[0]
            tmp['time'] = int(float(tmp2[1]))
            if os.path.islink(fname):
                filePath = os.readlink(fname)
                link = ' -> ' + filePath
                if os.path.exists(filePath):
                    tmp['size'] = os.path.getsize(filePath)
                else:
                    tmp['size'] = 0
            else:
                tmp['size'] = os.path.getsize(fname)
            if os.path.isdir(fname):
                data['dirs'].append(tmp)
            else:
                data['files'].append(tmp)
        except Exception as e:
            continue

    return mw.returnJson(True, 'OK', data)

# 移动到回收站
def mvRecycleBin(path):
    rb_dir = mw.getRecycleBinDir()
    rb_file = rb_dir + '/' + path.replace('/', '_mw_') + '_t_' + str(time.time())
    try:
        import shutil
        shutil.move(path, rb_file)
        mw.writeLog('文件管理', mw.getInfo('移动[{1}]到回收站成功!', (path,)))
        return True
    except Exception as e:
        mw.writeLog('文件管理', mw.getInfo('移动[{1}]到回收站失败!', (path,)))
        return False

# 回收站文件恢复
def reRecycleBin(path):
    rb_dir = mw.getRecycleBinDir()
    dst_file = path.replace('_mw_', '/').split('_t_')[0]
    try:
        import shutil
        shutil.move(rb_dir + '/' + path, dst_file)
        msg = mw.getInfo('移动文件[{1}]到回收站成功!', (dst_file,))
        mw.writeLog('文件管理', msg)
        return mw.returnData(True, '恢复成功!')
    except Exception as e:
        msg = mw.getInfo('从回收站恢复[{1}]失败!', (dst_file,))
        mw.writeLog('文件管理', msg)
        return mw.returnData(False, '恢复失败!')


def closeRecycleBin():
    rb_dir = mw.getRecycleBinDir()
    mw.execShell('which chattr && chattr -R -i ' + rb_dir)
    rlist = os.listdir(rb_dir)
    i = 0
    l = len(rlist)
    for name in rlist:
        i += 1
        path = rb_dir + '/' + name
        mw.writeSpeed(name, i, l)
        if os.path.isdir(path):
            shutil.rmtree(path)
        else:
            os.remove(path)
    mw.writeSpeed(None, 0, 0)
    mw.writeLog('文件管理', '已清空回收站!')
    return mw.returnJson(True, '已清空回收站!')


# 设置文件和目录权限
def setMode(path):
    s_path = os.path.dirname(path)
    p_stat = os.stat(s_path)
    os.chown(path, p_stat.st_uid, p_stat.st_gid)
    os.chmod(path, p_stat.st_mode)


def closeLogs():
    log_file = mw.getLogsDir()
    os.system('rm -rf ' + log_file + '/*')
    mw.opWeb('reload')
    # os.system('kill -USR1 `cat ' + mw.getServerDir() +'/openresty/nginx/logs/nginx.pid`')
    mw.writeLog('文件管理', '网站日志已被清空!')
    tmp = getDirSizeByBash(log_file)
    return mw.returnData(True, tmp)