Andrew's git - logparse.git/blob

19dba198cf926ace2dbdcc9048e33c4ffc531bf7
   1#! /usr/bin/python
   2
   3import argparse, logging, os, shutil, re, subprocess, sys, requests, glob, socket, sensors, datetime, time, operator, premailer, locale
   4from sys import stdin
   5from collections import namedtuple, defaultdict
   6from shutil import copyfile
   7import yaml
   8import ast
   9import logging.handlers
  10import types
  11import traceback # debugging only
  12
  13reload(sys)
  14sys.setdefaultencoding('utf-8')     # force utf-8 because anything else should die
  15
  16locale.setlocale(locale.LC_ALL, '') # inherit system locale
  17
  18scriptdir = os.path.dirname(os.path.realpath(__file__))
  19
  20
  21diskstat = namedtuple('diskstat', ['cap', 'alloc', 'free', 'ratio'])
  22drivetemp = namedtuple('drivetemp', ['path', 'name', 'temp', 'units'])
  23config = {
  24    'output': '~/var/www/logparse/summary.html',
  25    'header': scriptdir + '/header.html',
  26    'css': scriptdir + '/main.css',
  27    'title': 'logparse',
  28    'maxlist': 10,
  29    'maxcmd': 3,
  30    'resolve-domains': 'fqdn',
  31    'mail': {
  32        'to': '',
  33        'from': '',
  34        'subject': 'logparse from $hostname$'
  35    },
  36    'rotate': 'y',
  37    'hddtemp': {
  38        'drives': ['/dev/sda'],
  39        'port': 7634,
  40        'show-model': False, 
  41    },
  42    'apache': {
  43        'resolve-domains': '',
  44    },
  45    'sshd': {
  46        'resolve-domains': '',
  47    },
  48    'smbd': {
  49        'resolve-domains': '',
  50    },
  51    'httpd': {
  52        'resolve-domains': '',
  53    },
  54    'du': {
  55        'paths': ['/', '/etc', '/home'],
  56        'force-write': 'n',
  57    },
  58    'hostname-path': '/etc/hostname',
  59    'logs': {
  60        'auth': '/var/log/auth.log',
  61        'cron': '/var/log/cron.log',
  62        'sys': '/var/log/syslog',
  63        'smb': '/var/log/samba',
  64        'zfs': '/var/log/zpool.log',
  65        'alloc': '/var/log/du.log',
  66        'postfix': '/var/log/mail.log',
  67        'httpd': '/var/log/apache2'
  68    }
  69}
  70
  71
  72HTTPDSTATUS = "http://localhost/server-status"
  73MAILPATH = "/mnt/andrew/temp/logparse/mail.html"
  74MAILOUT = ""
  75HTMLOUT = ""
  76TXTOUT = ""
  77VERSION = "v0.1"
  78#DEG = u'\N{DEGREE SIGN}'.encode('utf-8')
  79DEG = "&deg;".encode('unicode_escape')
  80CEL = "C"
  81
  82# Set up logging
  83logging.basicConfig(level=logging.DEBUG)
  84logger = logging.getLogger('logparse')
  85loghandler = logging.handlers.SysLogHandler(address = '/dev/log')
  86loghandler.setFormatter(logging.Formatter(fmt='logparse.py[' + str(os.getpid()) + ']: %(message)s'))
  87logger.addHandler(loghandler)
  88
  89
  90# Get arguments
  91parser = argparse.ArgumentParser(description='grab logs of some common services and send them by email')
  92parser.add_argument('-f', '--function', help='run a specified function with parameters (for debugging purposes',required=False)
  93parser.add_argument('-t','--to', help='mail recipient (\"to\" address)',required=False)
  94
  95def __main__():
  96    logger.info("Beginning log analysis at " + str(datenow) + ' ' + str(timenow))
  97
  98    loadconf(scriptdir + "/logparse.yaml")
  99
 100    # check if user wants to test an isolated function
 101    debugfunc = parser.parse_args().function
 102    if debugfunc is not None:
 103        logger.debug("executing a single function: " + debugfunc)
 104        eval(debugfunc)
 105        sys.exit()
 106        
 107    if not config['mail']['to']:
 108        logger.info("no recipient address provided, outputting to stdout")
 109    else:
 110        logger.info("email will be sent to " + config['mail']['to'])
 111
 112    global LOCALDOMAIN
 113    LOCALDOMAIN = getlocaldomain()
 114
 115    global pathfilter
 116    global pathpattern
 117    pathfilter = {"auth": config['logs']['auth'], "cron": config['logs']['cron'], "sys": config['logs']['sys'], "postfix": config['logs']['postfix'], "smb": config['logs']['smb'], "zfs": config['logs']['zfs'], "alloc": config['logs']['alloc'], "httpd": config['logs']['httpd'], "header": config['header']}
 118    pathfilter = dict((re.escape(k), v) for k, v in pathfilter.iteritems())
 119    pathpattern = re.compile("|".join(pathfilter.keys()))
 120
 121    global varfilter
 122    global varpattern
 123    varfilter = {"$title$": config['title'], "$date$": datenow, "$time$": timenow, "$hostname$": hostname(), "$version$": VERSION, "$css$": os.path.relpath(config['css'], os.path.dirname(config['output']))}
 124    varfilter = dict((re.escape(k), v) for k, v in varfilter.iteritems())
 125    varpattern = re.compile("|".join(varfilter.keys()))
 126
 127    global tempfile
 128    tempfile = open(config['output'], 'w+')
 129    tempfile.write(header(config['header']))
 130    opentag('div', 1, 'main')
 131    sshd()
 132    sudo()
 133    cron()
 134    nameget()
 135    httpd()
 136    smbd()
 137    postfix()
 138    zfs()
 139    temp()
 140    du()
 141    for tag in ['div', 'body', 'html']:
 142        closetag(tag, 1)
 143    tempfile.close()
 144    mailprep(config['output'], MAILPATH)
 145    if (config['mail']['to']):
 146        logger.debug("sending email")
 147        ms = subject(config['mail']['subject'])
 148        cmd = "/bin/cat " + MAILPATH + " | /usr/bin/mail --debug-level=10 -a 'Content-type: text/html' -s '" + ms + "' " + config['mail']['to']
 149        logger.debug(cmd)
 150        subprocess.call(cmd, shell=True)
 151        logger.info("sent email")
 152
 153
 154def writetitle(title):
 155    if (title == '' or '\n' in title):
 156        logger.error("invalid title")
 157        return
 158        logger.debug("writing title for " + title)
 159    tag('h2', 0, title)
 160
 161def writedata(subtitle, data = None):   # write title and data to tempfile
 162    if (subtitle == ""):
 163        loggger.warning("no subtitle provided.. skipping section")
 164        return
 165
 166    if (data == None or len(data) == 0):
 167        logger.debug("no data provided.. just printing subtitle")
 168        tag('p', 0, subtitle)
 169    else:
 170        logger.debug("received data " + str(data))
 171        subtitle += ':'
 172        if (len(data) == 1):
 173            tag('p', 0, subtitle + ' ' + data[0])
 174        else:
 175            tag('p', 0, subtitle)
 176            opentag('ul', 1)
 177            for datum in data:
 178                tag('li', 0, datum)
 179            closetag('ul', 1)
 180
 181def opentag(tag, block = 0, id = None, cl = None):   # write html opening tag
 182    if (block == 1):
 183        tempfile.write('\n')
 184    tempfile.write('<' + tag)
 185    if (id != None):
 186        tempfile.write(" id='" + id + "'")
 187    if (cl != None):
 188        tempfile.write(" class='" + cl + "'")
 189    tempfile.write('>')
 190    if (block == 1):
 191        tempfile.write('\n')
 192
 193def closetag(tag, block = 0):  # write html closing tag
 194    if (block == 0):
 195        tempfile.write("</" + tag + ">")
 196    else:
 197        tempfile.write("\n</" + tag + ">\n")
 198
 199def tag(tag, block = 0, content = ""):  # write html opening tag, content, and html closing tag
 200    opentag(tag, block)
 201    tempfile.write(content)
 202    closetag(tag, block)
 203
 204def header(template):   # return a parsed html header from file
 205    try:
 206        copyfile(config['css'], config['dest'] + '/' + os.path.basename(config['css']))
 207        logger.debug("copied main.css")
 208    except Exception as e:
 209        logger.warning("could not copy main.css - " + str(e))
 210    headercontent = open(template, 'r').read()
 211    headercontent = varpattern.sub(lambda m: varfilter[re.escape(m.group(0))], headercontent)
 212    return headercontent
 213
 214def subject(template):
 215    r = varpattern.sub(lambda m: varfilter[re.escape(m.group(0))], template)
 216    logger.debug("returning subject line " + r)
 217    return r
 218
 219def hostname(): # get the hostname of current server
 220    hnfile = open(config['hostname-path'], 'r')
 221    hn = re.search('^(.*)\n*', hnfile.read()).group(1)
 222    return hn
 223
 224def getlocaldomain(): # get the parent fqdn of current server
 225    domain = socket.getfqdn().split('.', 1) # Note: if socket.fetfqdn() returns localhost, make sure the first entry in /etc/hosts contains the fqdn
 226    if len(domain) != 2:
 227        logger.warning('Could not get domain of this server, only hostname. Please consider updating /etc/hosts')
 228        return ''
 229    else:
 230        return domain[-1]
 231
 232def resolve(ip, fqdn = 'host-only'):        # try to resolve an ip to hostname
 233    # Possible values for fqdn:
 234    #   fqdn            show full hostname and domain
 235    #   fqdn-implicit   show hostname and domain unless local
 236    #   host-only       only show hostname
 237    #   ip              never resolve anything
 238    # resolve-domains defined in individual sections of the config take priority over global config
 239    
 240    if not fqdn:
 241        fqdn = config['resolve-domains']
 242
 243    if fqdn == 'ip':
 244        return(ip)
 245
 246    try:
 247        socket.inet_aton(ip)  # succeeds if text contains ip
 248        hn = socket.gethostbyaddr(ip)[0] # resolve ip to hostname
 249        if fqdn == 'fqdn-implicit' and hn.split('.', 1)[1] == LOCALDOMAIN:
 250            return(hn.split('.')[0])
 251        elif fqdn == 'fqdn' or fqdn == 'fqdn-implicit':
 252            return(hn)
 253        elif fqdn == 'host-only':
 254            return(hn.split('.')[0])
 255        else:
 256            logger.warning("invalid value for fqdn config")
 257            return(hn)
 258    except socket.herror:
 259        # cannot resolve ip
 260        logger.debug(ip + " cannot be found, might not exist anymore")
 261        return(ip)
 262    except (OSError, socket.error): # socket.error for Python 2 compatibility
 263        # already a hostname
 264        logger.debug(ip + " is already a hostname")
 265        return(ip)
 266    except Exception as err:
 267        logger.warning("failed to resolve hostname for " + ip + ": " + str(err))
 268        return(ip)  # return ip if no hostname exists
 269
 270def plural(noun, quantity): # return "1 noun" or "n nouns"
 271    if (quantity == 1):
 272        return(str(quantity) + " " + noun)
 273    else:
 274        return(str(quantity) + " " + noun + "s")
 275
 276def parsesize(num, suffix='B'):     # return human-readable size from number of bytes
 277    for unit in ['','Ki','Mi','Gi','Ti','Pi','Ei','Zi']:
 278        if abs(num) < 1024.0:
 279            return "%3.1f %s%s" % (num, unit, suffix)
 280        num /= 1024.0
 281    return "%.1f%s%s" % (num, 'Yi', suffix)
 282
 283def readlog(path = None, mode = 'r'):   # read file, substituting known paths
 284    if (path == None):
 285        logger.error("no path provided")
 286        return
 287    else:
 288        path = pathpattern.sub(lambda m: pathfilter[re.escape(m.group(0))], path)
 289        if (os.path.isfile(path) is False):
 290            logger.error(path + " does not exist")
 291            return ''
 292        else:
 293            return open(path, mode).read()
 294
 295def writelog(path = None, content = "", mode = 'w'):   # read file, substituting known paths
 296    if (path == None or content == None):
 297        logger.error("invalid usage of writelog")
 298        return
 299    else:
 300        path = pathpattern.sub(lambda m: pathfilter[re.escape(m.group(0))], path)
 301        file = open(path, mode)
 302        file.write(content)
 303        file.close()
 304        logger.debug("written to file " + path)
 305
 306def getusage(path):     # Get disk usage statistics
 307    disk = os.statvfs(path)
 308    cap = float(disk.f_bsize*disk.f_blocks)                     # disk capacity
 309    alloc = float(disk.f_bsize*(disk.f_blocks-disk.f_bfree))    # size of path
 310    free = float(disk.f_bsize*disk.f_bfree)                     # free space on disk (blocks, not usable space)
 311    ratio = alloc / cap * 100                                   # percentage used
 312    return diskstat(cap, alloc, free, ratio)
 313
 314def orderbyfreq(l):     # order a list by the frequency of its elements and remove duplicates
 315    temp_l = l[:]
 316    l = list(set(l))
 317    l = [[i, temp_l.count(i)] for i in l]   # add count of each element
 318    l.sort(key=lambda x:temp_l.count(x[0])) # sort by count
 319    l = [i[0] + ' (' + str(i[1]) + ')' for i in l]  # put element and count into string
 320    l = l[::-1]     # reverse
 321    return l
 322
 323def addtag(l, tag):  # add prefix and suffix tags to each item in a list
 324    l2 = ['<' + tag + '>' + i + '</' + tag + '>' for i in l]
 325    return l2
 326
 327def truncl(input, limit):      # truncate list
 328    if (len(input) > limit):
 329        more = str(len(input) - limit)
 330        output = input[:limit]
 331        output.append("+ " + more + " more")
 332        return(output)
 333    else:
 334        return(input)
 335
 336def mailprep(inputpath, output, *stylesheet):
 337    logger.debug("converting stylesheet to inline tags")
 338    old = readlog(inputpath)
 339    logger.debug(config['css'])
 340    pm = premailer.Premailer(old, external_styles=config['css'])
 341    MAILOUT = pm.transform()
 342    logger.info("converted stylesheet to inline tags")
 343    file = open(output, 'w')
 344    file.write(MAILOUT)
 345    file.close()
 346    logger.info("written to temporary mail file")
 347
 348
 349
 350#
 351#
 352#
 353
 354def sshd():
 355    logger.debug("starting sshd section")
 356    opentag('div', 1, 'sshd', 'section')
 357    matches = re.findall('.*sshd.*Accepted publickey for .* from .*', readlog('auth'))    # get all logins
 358    users = []  # list of users with format [username, number of logins] for each item
 359    data = []
 360    num = sum(1 for x in matches)     # total number of logins
 361    for match in matches:
 362        entry = re.search('^.*publickey\sfor\s(\w*)\sfrom\s(\S*)', match)  # [('user', 'ip')]
 363
 364        user = entry.group(1)
 365        ip = entry.group(2)
 366
 367        userhost = user + '@' + resolve(ip, fqdn=config['sshd']['resolve-domains'])
 368        exists = [i for i, item in enumerate(users) if re.search(userhost, item[0])]
 369        if (exists == []):
 370            users.append([userhost, 1])
 371        else:
 372            users[exists[0]][1] += 1
 373
 374    writetitle('sshd')
 375    subtitle = plural('login', num) + ' from'
 376    if (len(users) == 1):             # if only one user, do not display no of logins for this user
 377        logger.debug("found " + str(len(matches)) + " ssh logins for user " + users[0][0])
 378        subtitle += ' ' + users[0][0]
 379        writedata(subtitle)
 380    else:
 381        for user in users:
 382            data.append(user[0] + ' (' + str(user[1]) + ')')
 383            if len(data) > config['maxlist']:     # if there are lots of users, truncate them
 384                data.append('+ ' + str(len(users) - config['maxlist'] - 1) + " more")
 385                break
 386        logger.debug("found " + str(len(matches)) + " ssh logins for users " + str(data))
 387        writedata(subtitle, data)
 388    closetag('div', 1)
 389    logger.info("finished sshd section")
 390
 391#
 392#
 393#
 394
 395def sudo():
 396    logger.debug("starting sudo section")
 397    opentag('div', 1, 'sudo', 'section')
 398    umatches = re.findall('.*sudo:session\): session opened.*', readlog('auth'))
 399    num = sum(1 for line in umatches)    # total number of sessions
 400    users = []
 401    data = []
 402    for match in umatches:
 403        user = re.search('.*session opened for user root by (\S*)\(uid=.*\)', match).group(1)
 404        exists = [i for i, item in enumerate(users) if re.search(user, item[0])]
 405        if (exists == []):
 406            users.append([user, 1])
 407        else:
 408            users[exists[0]][1] += 1
 409    commands = []
 410    cmatches = re.findall('sudo:.*COMMAND\=(.*)', readlog('auth'))
 411    for cmd in cmatches:
 412        commands.append(cmd)
 413#    logger.debug("found the following commands: " + str(commands))
 414
 415    writetitle("sudo")
 416    subtitle = plural("sudo session", num) + " for"
 417    if (len(users) == 1):
 418        logger.debug("found " + str(num) + " sudo session(s) for user " + str(users[0]))
 419        subtitle += ' ' + users[0][0]
 420        writedata(subtitle)
 421    else:
 422        for user in users:
 423            data.append(user[0] + ' (' + str(user[1]) + ')')
 424        logger.debug("found " + str(num) + " sudo sessions for users " + str(data))
 425        writedata(subtitle, data)
 426    if (len(commands) > 0):
 427        commands = addtag(commands, 'code')
 428        commands = orderbyfreq(commands)
 429        commands = truncl(commands, config['maxcmd'])
 430        writedata("top sudo commands", [c for c in commands])
 431    closetag('div', 1)
 432    logger.info("finished sudo section")
 433
 434#
 435#
 436#
 437
 438def cron():
 439    logger.debug("starting cron section")
 440    opentag('div', 1, 'cron', 'section')
 441    matches = re.findall('.*CMD\s*\(\s*(?!.*cd)(.*)\)', readlog('cron'))
 442    num = sum(1 for line in matches)
 443    commands = []
 444    for match in matches:
 445        commands.append(str(match))
 446    # commands.append([str(match)for match in matches])
 447    #logger.debug("found cron command " + str(commands))
 448    logger.info("found " + str(num) + " cron jobs")
 449    subtitle = str(num) + " cron jobs run"
 450    writetitle("cron")
 451    writedata(subtitle)
 452    if (matches > 0):
 453        commands = addtag(commands, 'code')
 454        commands = orderbyfreq(commands)
 455        commands = truncl(commands, config['maxcmd'])
 456        writedata("top cron commands", [c for c in commands])
 457    closetag('div', 1)
 458    logger.info("finished cron section")
 459
 460#
 461#
 462#
 463
 464def nameget():
 465    logger.debug("starting nameget section")
 466    opentag('div', 1, 'nameget', 'section')
 467    logger.debug("reading syslog.. this may take a while")
 468    syslog = readlog('sys')
 469    failed = re.findall('.*nameget.*downloading of (.*) from .*failed.*', syslog)
 470    n_f = sum(1 for i in failed)
 471    l_f = []
 472    for i in failed:
 473        l_f.append(i if i else '[no destination]')
 474    logger.debug("the following downloads failed: " + str(l_f))
 475    succ = re.findall('.*nameget.*downloaded\s(.*)', syslog)
 476    n_s = sum(1 for i in succ)
 477    l_s = []
 478    for i in succ:
 479        l_s.append(i)
 480    logger.debug("the following downloads succeeded: " + str(l_f))
 481    logger.debug("found " + str(n_s) + " successful downloads, and " + str(n_f) + " failed attempts")
 482    writetitle("nameget")
 483    writedata(str(n_s) + " succeeded", truncl(l_s, config['maxlist']))
 484    writedata(str(n_f) + " failed", truncl(l_f, config['maxlist']))
 485    closetag('div', 1)
 486    logger.info("finished nameget section")
 487
 488#
 489#
 490#
 491
 492def httpd():
 493    logger.info("starting httpd section")
 494    opentag('div', 1, 'httpd', 'section')
 495    accesslog = readlog("httpd/access.log")
 496    a = len(accesslog.split('\n'))
 497    errorlog = readlog("httpd/error.log")
 498    e = len(errorlog.split('\n'))
 499    data_b = 0
 500    ips = []
 501    files = []
 502    useragents = []
 503    errors = []
 504    notfound = []
 505    unprivileged = []
 506
 507    for line in accesslog.split('\n'):
 508        fields = re.search('^(\S*) .*GET (\/.*) HTTP/\d\.\d\" 200 (\d*) \"(.*)\".*\((.*)\;', line)
 509        try:
 510            ips.append(resolve(fields.group(1), fqdn=config['httpd']['resolve-domains']))
 511            files.append(fields.group(2))
 512            useragents.append(fields.group(5))
 513            data_b += int(fields.group(3))
 514        except Exception as error:
 515            if type(error) is AttributeError: # this line is not an access log
 516                pass
 517            else:
 518                logger.warning("error processing httpd access log: " + str(error))
 519                traceback.print_exc()
 520    logger.debug(str(data_b) + " bytes transferred")
 521    data_h = parsesize(data_b)
 522    writetitle("apache")
 523
 524    logger.debug("httpd has transferred " + str(data_b) + " bytes in response to " + str(a) + " requests with " + str(e) + " errors")
 525    if (a > 0):
 526        files = addtag(files, 'code')
 527        files = orderbyfreq(files)
 528        files = truncl(files, config['maxlist'])
 529        writedata(plural(" request", a), files)
 530    if (ips != None):
 531        ips = addtag(ips, 'code')
 532        ips = orderbyfreq(ips)
 533        n_ip = str(len(ips))
 534        ips = truncl(ips, config['maxlist'])
 535        writedata(plural(" client", n_ip), ips)
 536    if (useragents != None):
 537        useragents = addtag(useragents, 'code')
 538        useragents = orderbyfreq(useragents)
 539        n_ua = str(len(useragents))
 540        useragents = truncl(useragents, config['maxlist'])
 541        writedata(plural(" device", n_ua), useragents)
 542
 543    writedata(data_h + " transferred")
 544    writedata(plural(" error", e))
 545
 546    closetag('div', 1)
 547    logger.info("finished httpd section")
 548
 549#
 550#
 551#
 552
 553def httpdsession():
 554    # logger.debug("starting httpd section")
 555    opentag('div', 1, 'httpd', 'section')
 556    httpdlog = requests.get(HTTPDSTATUS).content
 557    uptime = re.search('.*uptime: (.*)<', httpdlog).group(1)
 558    uptime = re.sub(' minute[s]', 'm', uptime)
 559    uptime = re.sub(' second[s]', 's', uptime)
 560    uptime = re.sub(' day[s]', 's', uptime)
 561    uptime = re.sub(' month[s]', 'mo', uptime)
 562    accesses = re.search('.*accesses: (.*) - .*', httpdlog).group(1)
 563    traffic = re.search('.*Traffic: (.*)', httpdlog).group(1)
 564    return("<br /><strong>httpd session: </strong> up " + uptime + ", " + accesses + " requests, " + traffic + " transferred")
 565    closetag('div', 1)
 566    # logger.info("finished httpd section")
 567
 568#
 569#
 570#
 571
 572def smbd():
 573    logger.debug("starting smbd section")
 574    opentag('div', 1, 'smbd', 'section')
 575    files = glob.glob(config['logs']['smb'] + "/log.*[!\.gz][!\.old]")    # find list of logfiles
 576    # for f in files:
 577
 578        # file_mod_time = os.stat(f).st_mtime
 579
 580        # Time in seconds since epoch for time, in which logfile can be unmodified.
 581        # should_time = time.time() - (30 * 60)
 582
 583        # Time in minutes since last modification of file
 584        # last_time = (time.time() - file_mod_time)
 585        # logger.debug(last_time)
 586
 587        # if (file_mod_time - should_time) < args.time:
 588            # print "CRITICAL: {} last modified {:.2f} minutes. Threshold set to 30 minutes".format(last_time, file, last_time)
 589        # else:
 590
 591        # if (datetime.timedelta(datetime.datetime.now() - datetime.fromtimestamp(os.path.getmtime(f))).days > 7):
 592            # files.remove(f)
 593    logger.debug("found log files " + str(files))
 594    n_auths = 0         # total number of logins from all users
 595    sigma_auths = []    # contains users
 596    output = ""
 597
 598    for file in files:  # one log file for each client
 599
 600        logger.debug("looking at file " + file)
 601
 602        # find the machine (ip or hostname) that this file represents
 603        ip = re.search('log\.(.*)', file).group(1)    # get ip or hostname from file path (/var/log/samba/log.host)
 604        host = resolve(ip, fqdn=config['smbd']['resolve-domains'])
 605        if (host == ip and (config['smbd']['resolve-domains'] or config['resolve-domains']) != 'ip'):    # if ip has disappeared, fall back to a hostname from logfile
 606            newhost = re.findall('.*\]\@\[(.*)\]', readlog(file))
 607            if (len(set(newhost)) == 1):    # all hosts in one file should be the same
 608                host = newhost[0].lower()
 609
 610        # count number of logins from each user-host pair
 611        matches = re.findall('.*(?:authentication for user \[|connect to service .* initially as user )(\S*)(?:\] .*succeeded| \()', readlog(file))
 612        for match in matches:
 613            userhost = match + "@" + host
 614            sigma_auths.append(userhost)
 615            # exists = [i for i, item in enumerate(sigma_auths) if re.search(userhost, item[0])]
 616            # if (exists == []):
 617            #     sigma_auths.append([userhost, 1])
 618            # else:
 619            #     sigma_auths[exists[0]][1] += 1
 620            n_auths += 1
 621    writetitle("samba")
 622    subtitle = plural("login", n_auths) + " from"
 623    if (len(sigma_auths) == 1):             # if only one user, do not display no of logins for this user
 624        subtitle += ' ' + sigma_auths[0][0]
 625        writedata(subtitle)
 626    else:       # multiple users
 627        sigma_auths = orderbyfreq(sigma_auths)
 628        sigma_auths = truncl(sigma_auths, config['maxlist'])
 629        logger.debug("found " + str(n_auths) + " samba logins for users " + str(sigma_auths))
 630        writedata(subtitle, sigma_auths)
 631    closetag('div', 1)
 632    logger.info("finished smbd section")
 633
 634#
 635#
 636#
 637
 638def postfix():
 639    logger.debug("starting postfix section")
 640    opentag('div', 1, 'postfix', 'section')
 641    messages = re.findall('.*from\=<(.*)>, size\=(\d*),.*\n.*to=<(.*)>', readlog('postfix'))
 642    r = []
 643    s = []
 644    size = 0
 645    for message in messages:
 646        r.append(message[2])
 647        s.append(message[0])
 648        size += int(message[1])
 649    # size = sum([int(x) for x in messages])
 650    size = parsesize(size)
 651    n = str(len(messages))
 652    writetitle("postfix")
 653
 654    if (len(r) > 0):
 655        s = list(set(r))    # unique recipients
 656        if (len(s) > 1):
 657            r = orderbyfreq(r)
 658            r = truncl(r, config['maxlist'])
 659            writedata(n + " messages sent to", r)
 660        else:
 661            writedata(n + " messages sent to " + r[0])
 662    else:
 663        writedata(n + " messages sent")
 664    writedata("total of " + size)
 665    closetag('div', 1)
 666    logger.info("finished postfix section")
 667
 668#
 669#
 670#
 671
 672def zfs():
 673    logger.debug("starting zfs section")
 674    opentag('div', 1, 'zfs', 'section')
 675    zfslog = readlog('zfs')
 676    pool = re.search('.*---\n(\w*)', zfslog).group(1)
 677    scrub = re.search('.*scrub repaired (\d*).* in .*\d*h\d*m with (\d*) errors on (\S*\s)(\S*)\s(\d+\s)', zfslog)
 678    iostat = re.search('.*---\n\w*\s*(\S*)\s*(\S*)\s', zfslog)
 679    scrubrepairs = scruberrors = scrubdate = None
 680    try:
 681        scrubrepairs = scrub.group(1)
 682        scruberrors = scrub.group(2)
 683        scrubdate = scrub.group(3) + scrub.group(5) + scrub.group(4)
 684    except Exception as e:
 685        logger.debug("error getting scrub data: " + str(e))
 686    alloc = iostat.group(1)
 687    free = iostat.group(2)
 688    writetitle("zfs")
 689    if (scrubdate != None):
 690        subtitle = "Scrub of " + pool + " on " + scrubdate
 691        data = [scrubrepairs + " repaired", scruberrors + " errors", alloc + " used", free + " free"]
 692    else:
 693        subtitle = pool
 694        data = [alloc + " used", free + " free"]
 695    writedata(subtitle, data)
 696    closetag('div', 1)
 697    logger.info("finished zfs section")
 698
 699#
 700#
 701#
 702
 703def temp():
 704    logger.debug("starting temp section")
 705    opentag('div', 1, 'temp', 'section')
 706
 707    # cpu temp
 708
 709    sensors.init()
 710    coretemps = []
 711    pkgtemp = 0
 712    systemp = 0
 713    try:
 714        for chip in sensors.iter_detected_chips():
 715            for feature in chip:
 716                if "Core" in feature.label:
 717                    coretemps.append([feature.label, feature.get_value()])
 718                    logger.debug("found core " + feature.label + " at temp " + str(feature.get_value()))
 719                if "CPUTIN" in feature.label:
 720                    pkgtemp = str(feature.get_value())
 721                    logger.debug("found cpu package at temperature " + pkgtemp)
 722                if "SYS" in feature.label:
 723                    systemp = feature.get_value()
 724                    logger.debug("found sys input " + feature.label + " at temp " + str(feature.get_value()))
 725        core_avg = reduce(lambda x, y: x[1] + y[1], coretemps) / len(coretemps)
 726        logger.debug("average cpu temp is " + str(core_avg))
 727        coretemps.append(["avg", str(core_avg)])
 728        coretemps.append(["pkg", pkgtemp])
 729        coretemps = [x[0] + ": " + str(x[1]) + DEG + CEL for x in coretemps]
 730    finally:
 731        sensors.cleanup()
 732
 733    # drive temp
 734
 735    # For this to work, `hddtemp` must be running in daemon mode.
 736    # Start it like this (bash):   sudo hddtemp -d /dev/sda /dev/sdX...
 737    
 738    received = ''
 739    sumtemp = 0.0 
 740    data = ""
 741    output = []
 742    
 743    try:
 744        hsock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
 745        hsock.connect(("localhost", int(config['hddtemp']['port'])))
 746        logger.debug("tcp socket on port " + str(int(config['hddtemp']['port'])) + " opened for `hddtemp` (ensure daemon is running)")
 747        hsock.sendall('')   # send dummy packet and shut write conn
 748        hsock.shutdown(socket.SHUT_WR)
 749
 750        while 1:
 751            line = hsock.recv(1024)
 752            if line == "":      # exit on blank line
 753                break
 754            logger.debug("received line " + str(line))
 755            data += line
 756        hsock.close()
 757        logger.debug("closed connection, having received " + str(sys.getsizeof(data)) + " bytes")
 758
 759        data = data.lstrip('|').rstrip('|') # remove leading & trailing `|`
 760        drives = data.split('|' * 2) # split into drives
 761
 762        for drive in drives:
 763            fields = drive.split('|')
 764            if fields[0] in config['hddtemp']['drives']:
 765                output.append(fields[0] + (' (' + fields[1] + ')' if config['hddtemp']['show-model'] else '')+ ': ' + fields[2] + DEG + fields[3])
 766                sumtemp += int(fields[2])
 767                logger.debug("added drive " + fields[0])
 768            else:
 769                logger.debug("ignoring drive " + fields[0])
 770
 771        hddavg = int(format(sumtemp/float(len(drives)))) + e + DEG + output[0][-1:] # use units of first drive (last character of output) 
 772        logger.debug("avg disk temp is " + str(hddavg))
 773        output.append("avg: " + str(hddavg))
 774    except Exception as ex:
 775        logger.debug("failed getting hddtemps with error " + str(ex))
 776    finally:
 777        hsock.close()
 778
 779    writetitle("temperatures")
 780    if (systemp != 0):
 781        writedata("sys: " + str(systemp) + DEG)
 782    if (coretemps != ''):
 783        writedata("cores", coretemps)
 784    if (config['hddtemp']['drives'] != ''):
 785        writedata("disks", output)
 786
 787    closetag('div', 1)
 788    logger.info("finished temp section")
 789
 790#
 791#
 792#
 793
 794def du():
 795    logger.debug("starting du section")
 796    opentag('div', 1, 'du', 'section')
 797    out = []
 798    content = readlog('alloc')
 799    contentnew = ""
 800    for path in config['du']['paths']:
 801        alloc_f = getusage(path).alloc
 802        delta = None
 803        try:
 804            alloc_i = re.search(path + '\t(.*)\n', content).group(1)
 805            delta = alloc_f - float(alloc_i)
 806        except:
 807            pass
 808        if (delta == None):
 809            out.append([path, "used " + parsesize(alloc_f)])
 810        else:
 811            out.append([path, "used " + parsesize(alloc_f), "delta " + parsesize(delta)])
 812        contentnew += (path + '\t' + str(alloc_f) + '\n')
 813    if config['rotate'] == 'y' or config['du']['force-write'] == 'y':
 814        writelog('alloc', contentnew) 
 815
 816    writetitle("du")
 817    logger.debug("disk usage data is " + str(out))
 818    for path in out:
 819        writedata(path[0], [p for p in path[1:]])
 820
 821    closetag('div', 1)
 822    logger.info("finished du section")
 823
 824#
 825#
 826#
 827starttime = datetime.datetime.now()
 828timenow = time.strftime("%H:%M:%S")
 829datenow = time.strftime("%x")
 830
 831def loadconf(configfile):
 832    try:
 833        data = yaml.safe_load(open(configfile))
 834        for value in data:
 835            if(type(data[value]) == types.DictType):
 836                for key in data[value].iteritems():
 837                    config[value][key[0]] = key[1]
 838            else:
 839                config[value] = data[value]
 840        config['dest'] = os.path.dirname(config['output'])
 841        if parser.parse_args().to is not None: config['mail']['to'] = parser.parse_args().to
 842    except Exception as e:
 843        logger.warning("error processing config: " + str(e))
 844
 845
 846try:
 847    __main__()
 848finally:
 849    # rotate logs using systemd logrotate
 850    if parser.parse_args().function is None:
 851        if (config['rotate'] == 'y'):
 852            subprocess.call("/usr/sbin/logrotate -f /etc/logrotate.conf", shell=True)
 853            logger.info("rotated logfiles")
 854        else:
 855            logger.debug("user doesn't want to rotate logs")
 856            if (config['rotate'] == 's'):
 857                logger.debug("Here is the output of `logrotate -d /etc/logrotate.conf` (simulated):")
 858                sim = subprocess.check_output("/usr/sbin/logrotate -d /etc/logrotate.conf", shell=True)
 859                logger.debug(sim)
 860    
 861    timenow = time.strftime("%H:%M:%S")
 862    datenow = time.strftime("%x")
 863    logger.info("finished parsing logs at " + datetime.datetime.now().strftime("%x %H:%M:%S") + " (" + str(datetime.datetime.now() - starttime) + ")")