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author | Fabian Affolter <fabian@bernewireless.net> | 2010-12-08 23:27:15 +0100 |
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committer | Fabian Affolter <fabian@bernewireless.net> | 2010-12-08 23:27:15 +0100 |
commit | e833a7a76b231cd346f09c9a422ecb855d1cc6b4 (patch) | |
tree | e2762fc31e1162a6859dbd6cd7b5c28208296d9d /build/lib/Bcfg2/Client/Tools/POSIX.py | |
parent | baf5854f414c2a35887e3fbbcfd094e12e7c6ee7 (diff) | |
download | bcfg2-e833a7a76b231cd346f09c9a422ecb855d1cc6b4.tar.gz bcfg2-e833a7a76b231cd346f09c9a422ecb855d1cc6b4.tar.bz2 bcfg2-e833a7a76b231cd346f09c9a422ecb855d1cc6b4.zip |
Merge with upstream
Diffstat (limited to 'build/lib/Bcfg2/Client/Tools/POSIX.py')
-rw-r--r-- | build/lib/Bcfg2/Client/Tools/POSIX.py | 766 |
1 files changed, 766 insertions, 0 deletions
diff --git a/build/lib/Bcfg2/Client/Tools/POSIX.py b/build/lib/Bcfg2/Client/Tools/POSIX.py new file mode 100644 index 000000000..d2611130c --- /dev/null +++ b/build/lib/Bcfg2/Client/Tools/POSIX.py @@ -0,0 +1,766 @@ +"""All POSIX Type client support for Bcfg2.""" +__revision__ = '$Revision$' + +from stat import S_ISVTX, S_ISGID, S_ISUID, S_IXUSR, S_IWUSR, S_IRUSR, S_IXGRP +from stat import S_IWGRP, S_IRGRP, S_IXOTH, S_IWOTH, S_IROTH, ST_MODE, S_ISDIR +from stat import S_IFREG, ST_UID, ST_GID, S_ISREG, S_IFDIR, S_ISLNK, ST_MTIME +import binascii +from datetime import datetime +import difflib +import errno +import grp +import logging +import os +import pwd +import shutil +import stat +import time +import Bcfg2.Client.Tools +import Bcfg2.Options +from Bcfg2.Client import XML + +log = logging.getLogger('posix') + +# map between dev_type attribute and stat constants +device_map = {'block': stat.S_IFBLK, + 'char': stat.S_IFCHR, + 'fifo': stat.S_IFIFO} + + +def calcPerms(initial, perms): + """This compares ondisk permissions with specified ones.""" + pdisp = [{1:S_ISVTX, 2:S_ISGID, 4:S_ISUID}, + {1:S_IXUSR, 2:S_IWUSR, 4:S_IRUSR}, + {1:S_IXGRP, 2:S_IWGRP, 4:S_IRGRP}, + {1:S_IXOTH, 2:S_IWOTH, 4:S_IROTH}] + tempperms = initial + if len(perms) == 3: + perms = '0%s' % (perms) + pdigits = [int(perms[digit]) for digit in range(4)] + for index in range(4): + for (num, perm) in list(pdisp[index].items()): + if pdigits[index] & num: + tempperms |= perm + return tempperms + + +def normGid(entry): + """ + This takes a group name or gid and + returns the corresponding gid or False. + """ + try: + try: + return int(entry.get('group')) + except: + return int(grp.getgrnam(entry.get('group'))[2]) + except (OSError, KeyError): + log.error('GID normalization failed for %s' % (entry.get('name'))) + return False + + +def normUid(entry): + """ + This takes a user name or uid and + returns the corresponding uid or False. + """ + try: + try: + return int(entry.get('owner')) + except: + return int(pwd.getpwnam(entry.get('owner'))[2]) + except (OSError, KeyError): + log.error('UID normalization failed for %s' % (entry.get('name'))) + return False + + +class POSIX(Bcfg2.Client.Tools.Tool): + """POSIX File support code.""" + name = 'POSIX' + __handles__ = [('Path', 'device'), + ('Path', 'directory'), + ('Path', 'file'), + ('Path', 'hardlink'), + ('Path', 'nonexistent'), + ('Path', 'permissions'), + ('Path', 'symlink')] + __req__ = {'Path': ['name', 'type']} + + # grab paranoid options from /etc/bcfg2.conf + opts = {'ppath': Bcfg2.Options.PARANOID_PATH, + 'max_copies': Bcfg2.Options.PARANOID_MAX_COPIES} + setup = Bcfg2.Options.OptionParser(opts) + setup.parse([]) + ppath = setup['ppath'] + max_copies = setup['max_copies'] + + def canInstall(self, entry): + """Check if entry is complete for installation.""" + if Bcfg2.Client.Tools.Tool.canInstall(self, entry): + if (entry.tag, + entry.get('type'), + entry.text, + entry.get('empty', 'false')) == ('Path', + 'file', + None, + 'false'): + return False + return True + else: + return False + + def gatherCurrentData(self, entry): + if entry.tag == 'Path' and entry.get('type') == 'file': + try: + ondisk = os.stat(entry.get('name')) + except OSError: + entry.set('current_exists', 'false') + self.logger.debug("%s %s does not exist" % + (entry.tag, entry.get('name'))) + return False + try: + entry.set('current_owner', str(ondisk[ST_UID])) + entry.set('current_group', str(ondisk[ST_GID])) + except (OSError, KeyError): + pass + entry.set('perms', str(oct(ondisk[ST_MODE])[-4:])) + try: + content = open(entry.get('name')).read() + entry.set('current_bfile', binascii.b2a_base64(content)) + except IOError, error: + self.logger.error("Failed to read %s: %s" % (error.filename, + error.strerror)) + + def Verifydevice(self, entry, _): + """Verify device entry.""" + if entry.get('dev_type') == None or \ + entry.get('owner') == None or \ + entry.get('group') == None: + self.logger.error('Entry %s not completely specified. ' + 'Try running bcfg2-repo-validate.' % (entry.get('name'))) + return False + if entry.get('dev_type') in ['block', 'char']: + # check if major/minor are properly specified + if entry.get('major') == None or \ + entry.get('minor') == None: + self.logger.error('Entry %s not completely specified. ' + 'Try running bcfg2-repo-validate.' % (entry.get('name'))) + return False + try: + # check for file existence + filestat = os.stat(entry.get('name')) + except OSError: + entry.set('current_exists', 'false') + self.logger.debug("%s %s does not exist" % + (entry.tag, entry.get('name'))) + return False + + try: + # attempt to verify device properties as specified in config + dev_type = entry.get('dev_type') + mode = calcPerms(device_map[dev_type], + entry.get('mode', '0600')) + owner = normUid(entry) + group = normGid(entry) + if dev_type in ['block', 'char']: + # check for incompletely specified entries + if entry.get('major') == None or \ + entry.get('minor') == None: + self.logger.error('Entry %s not completely specified. ' + 'Try running bcfg2-repo-validate.' % (entry.get('name'))) + return False + major = int(entry.get('major')) + minor = int(entry.get('minor')) + if major == os.major(filestat.st_rdev) and \ + minor == os.minor(filestat.st_rdev) and \ + mode == filestat.st_mode and \ + owner == filestat.st_uid and \ + group == filestat.st_gid: + return True + else: + return False + elif dev_type == 'fifo' and \ + mode == filestat.st_mode and \ + owner == filestat.st_uid and \ + group == filestat.st_gid: + return True + else: + self.logger.info('Device properties for %s incorrect' % \ + entry.get('name')) + return False + except OSError: + self.logger.debug("%s %s failed to verify" % + (entry.tag, entry.get('name'))) + return False + + def Installdevice(self, entry): + """Install device entries.""" + try: + # check for existing paths and remove them + os.lstat(entry.get('name')) + try: + os.unlink(entry.get('name')) + exists = False + except OSError: + self.logger.info('Failed to unlink %s' % \ + entry.get('name')) + return False + except OSError: + exists = False + + if not exists: + try: + dev_type = entry.get('dev_type') + mode = calcPerms(device_map[dev_type], + entry.get('mode', '0600')) + if dev_type in ['block', 'char']: + # check if major/minor are properly specified + if entry.get('major') == None or \ + entry.get('minor') == None: + self.logger.error('Entry %s not completely specified. ' + 'Try running bcfg2-repo-validate.' % (entry.get('name'))) + return False + major = int(entry.get('major')) + minor = int(entry.get('minor')) + device = os.makedev(major, minor) + os.mknod(entry.get('name'), mode, device) + else: + os.mknod(entry.get('name'), mode) + os.chown(entry.get('name'), normUid(entry), normGid(entry)) + return True + except KeyError: + self.logger.error('Failed to install %s' % entry.get('name')) + except OSError: + self.logger.error('Failed to install %s' % entry.get('name')) + return False + + def Verifydirectory(self, entry, modlist): + """Verify Path type='directory' entry.""" + if entry.get('perms') == None or \ + entry.get('owner') == None or \ + entry.get('group') == None: + self.logger.error('Entry %s not completely specified. ' + 'Try running bcfg2-repo-validate.' % (entry.get('name'))) + return False + while len(entry.get('perms', '')) < 4: + entry.set('perms', '0' + entry.get('perms', '')) + try: + ondisk = os.stat(entry.get('name')) + except OSError: + entry.set('current_exists', 'false') + self.logger.debug("%s %s does not exist" % + (entry.tag, entry.get('name'))) + return False + try: + owner = str(ondisk[ST_UID]) + group = str(ondisk[ST_GID]) + except (OSError, KeyError): + self.logger.error('User/Group resolution failed for path %s' % \ + entry.get('name')) + owner = 'root' + group = '0' + finfo = os.stat(entry.get('name')) + perms = oct(finfo[ST_MODE])[-4:] + if entry.get('mtime', '-1') != '-1': + mtime = str(finfo[ST_MTIME]) + else: + mtime = '-1' + pTrue = ((owner == str(normUid(entry))) and + (group == str(normGid(entry))) and + (perms == entry.get('perms')) and + (mtime == entry.get('mtime', '-1'))) + + pruneTrue = True + ex_ents = [] + if entry.get('prune', 'false') == 'true' \ + and (entry.tag == 'Path' and entry.get('type') == 'directory'): + # check for any extra entries when prune='true' attribute is set + try: + entries = ['/'.join([entry.get('name'), ent]) \ + for ent in os.listdir(entry.get('name'))] + ex_ents = [e for e in entries if e not in modlist] + if ex_ents: + pruneTrue = False + self.logger.debug("Directory %s contains extra entries:" % \ + entry.get('name')) + self.logger.debug(ex_ents) + nqtext = entry.get('qtext', '') + '\n' + nqtext += "Directory %s contains extra entries:" % \ + entry.get('name') + nqtext += ":".join(ex_ents) + entry.set('qtest', nqtext) + [entry.append(XML.Element('Prune', path=x)) \ + for x in ex_ents] + except OSError: + ex_ents = [] + pruneTrue = True + + if not pTrue: + if owner != str(normUid(entry)): + entry.set('current_owner', owner) + self.logger.debug("%s %s ownership wrong" % \ + (entry.tag, entry.get('name'))) + nqtext = entry.get('qtext', '') + '\n' + nqtext += "%s owner wrong. is %s should be %s" % \ + (entry.get('name'), owner, entry.get('owner')) + entry.set('qtext', nqtext) + if group != str(normGid(entry)): + entry.set('current_group', group) + self.logger.debug("%s %s group wrong" % \ + (entry.tag, entry.get('name'))) + nqtext = entry.get('qtext', '') + '\n' + nqtext += "%s group is %s should be %s" % \ + (entry.get('name'), group, entry.get('group')) + entry.set('qtext', nqtext) + if perms != entry.get('perms'): + entry.set('current_perms', perms) + self.logger.debug("%s %s permissions are %s should be %s" % + (entry.tag, + entry.get('name'), + perms, + entry.get('perms'))) + nqtext = entry.get('qtext', '') + '\n' + nqtext += "%s %s perms are %s should be %s" % \ + (entry.tag, + entry.get('name'), + perms, + entry.get('perms')) + entry.set('qtext', nqtext) + if mtime != entry.get('mtime', '-1'): + entry.set('current_mtime', mtime) + self.logger.debug("%s %s mtime is %s should be %s" \ + % (entry.tag, entry.get('name'), mtime, + entry.get('mtime'))) + nqtext = entry.get('qtext', '') + '\n' + nqtext += "%s mtime is %s should be %s" % \ + (entry.get('name'), mtime, entry.get('mtime')) + entry.set('qtext', nqtext) + if entry.get('type') != 'file': + nnqtext = entry.get('qtext') + nnqtext += '\nInstall %s %s: (y/N) ' % (entry.get('type'), + entry.get('name')) + entry.set('qtext', nnqtext) + return pTrue and pruneTrue + + def Installdirectory(self, entry): + """Install Path type='directory' entry.""" + if entry.get('perms') == None or \ + entry.get('owner') == None or \ + entry.get('group') == None: + self.logger.error('Entry %s not completely specified. ' + 'Try running bcfg2-repo-validate.' % \ + (entry.get('name'))) + return False + self.logger.info("Installing directory %s" % (entry.get('name'))) + try: + fmode = os.lstat(entry.get('name')) + if not S_ISDIR(fmode[ST_MODE]): + self.logger.debug("Found a non-directory entry at %s" % \ + (entry.get('name'))) + try: + os.unlink(entry.get('name')) + exists = False + except OSError: + self.logger.info("Failed to unlink %s" % \ + (entry.get('name'))) + return False + else: + self.logger.debug("Found a pre-existing directory at %s" % \ + (entry.get('name'))) + exists = True + except OSError: + # stat failed + exists = False + + if not exists: + parent = "/".join(entry.get('name').split('/')[:-1]) + if parent: + try: + os.stat(parent) + except: + self.logger.debug('Creating parent path for directory %s' % (entry.get('name'))) + for idx in range(len(parent.split('/')[:-1])): + current = '/'+'/'.join(parent.split('/')[1:2+idx]) + try: + sloc = os.stat(current) + except OSError: + try: + os.mkdir(current) + continue + except OSError: + return False + if not S_ISDIR(sloc[ST_MODE]): + try: + os.unlink(current) + os.mkdir(current) + except OSError: + return False + + try: + os.mkdir(entry.get('name')) + except OSError: + self.logger.error('Failed to create directory %s' % \ + (entry.get('name'))) + return False + if entry.get('prune', 'false') == 'true' and entry.get("qtest"): + for pent in entry.findall('Prune'): + pname = pent.get('path') + ulfailed = False + if os.path.isdir(pname): + self.logger.info("Not removing extra directory %s, " + "please check and remove manually" % pname) + continue + try: + self.logger.debug("Unlinking file %s" % pname) + os.unlink(pname) + except OSError: + self.logger.error("Failed to unlink path %s" % pname) + ulfailed = True + if ulfailed: + return False + return self.Installpermissions(entry) + + def Verifyfile(self, entry, _): + """Verify Path type='file' entry.""" + # permissions check + content check + permissionStatus = self.Verifydirectory(entry, _) + tbin = False + if entry.get('encoding', 'ascii') == 'base64': + tempdata = binascii.a2b_base64(entry.text) + tbin = True + elif entry.get('empty', 'false') == 'true': + tempdata = '' + else: + if entry.text == None: + self.logger.error("Cannot verify incomplete Path type='%s' %s" % \ + (entry.get('type'), entry.get('name'))) + return False + tempdata = entry.text + if type(tempdata) == unicode: + try: + tempdata = tempdata.encode(self.setup['encoding']) + except UnicodeEncodeError, e: + self.logger.error("Error encoding file %s:\n %s" % \ + (entry.get('name'), e)) + try: + content = open(entry.get('name')).read() + except IOError, error: + if error.strerror == "No such file or directory": + # print diff for files that don't exist (yet) + content = '' + else: + self.logger.error("Failed to read %s: %s" % \ + (error.filename, error.strerror)) + return False + # comparison should be done with fingerprints or + # md5sum so it would be faster for big binary files + contentStatus = content == tempdata + if not contentStatus: + try: + content.decode('ascii') + isstring = True + except: + isstring = False + if tbin or not isstring: + entry.set('current_bfile', binascii.b2a_base64(content)) + nqtext = entry.get('qtext', '') + nqtext += '\nBinary file, no printable diff' + else: + do_diff = True + rawdiff = [] + start = time.time() + longtime = False + for x in difflib.ndiff(content.split('\n'), + tempdata.split('\n')): + now = time.time() + rawdiff.append(x) + if now - start > 5 and not longtime: + self.logger.info("Diff of %s taking a long time" % \ + (entry.get('name'))) + longtime = True + elif now - start > 30: + self.logger.error("Diff of %s took too long; giving up" % \ + (entry.get('name'))) + do_diff = False + break + if do_diff: + diff = '\n'.join(rawdiff) + entry.set("current_bdiff", binascii.b2a_base64(diff)) +# entry.set("current_diff", diff) + udiff = '\n'.join([x for x in \ + difflib.unified_diff(content.split('\n'), \ + tempdata.split('\n'))]) + try: + eudiff = udiff.encode('ascii') + except: + eudiff = "Binary file: no diff printed" + + nqtext = entry.get('qtext', '') + + if nqtext: + nqtext += '\n' + nqtext += eudiff + else: + entry.set('current_bfile', binascii.b2a_base64(content)) + nqtext = entry.get('qtext', '') + nqtext += '\nDiff took too long to compute, no printable diff' + entry.set('qtext', nqtext) + qtxt = entry.get('qtext', '') + qtxt += "\nInstall %s %s: (y/N): " % (entry.tag, entry.get('name')) + entry.set('qtext', qtxt) + return contentStatus and permissionStatus + + def Installfile(self, entry): + """Install Path type='file' entry.""" + self.logger.info("Installing file %s" % (entry.get('name'))) + + parent = "/".join(entry.get('name').split('/')[:-1]) + if parent: + try: + os.stat(parent) + except: + self.logger.debug('Creating parent path for config file %s' % \ + (entry.get('name'))) + current = '/' + for next in parent.split('/')[1:]: + current += next + '/' + try: + sloc = os.stat(current) + try: + if not S_ISDIR(sloc[ST_MODE]): + self.logger.debug('%s is not a directory; recreating' \ + % (current)) + os.unlink(current) + os.mkdir(current) + except OSError: + return False + except OSError: + try: + self.logger.debug("Creating non-existent path %s" % current) + os.mkdir(current) + except OSError: + return False + + # If we get here, then the parent directory should exist + if (entry.get("paranoid", False) == 'true') and \ + self.setup.get("paranoid", False) and not \ + (entry.get('current_exists', 'true') == 'false'): + bkupnam = entry.get('name').replace('/', '_') + # current list of backups for this file + bkuplist = [f for f in os.listdir(self.ppath) if + f.startswith(bkupnam)] + bkuplist.sort() + if len(bkuplist) == int(self.max_copies): + # remove the oldest backup available + oldest = bkuplist.pop(0) + self.logger.info("Removing %s" % oldest) + try: + os.remove("%s/%s" % (self.ppath, oldest)) + except: + self.logger.error("Failed to remove %s/%s" % \ + (self.ppath, oldest)) + return False + try: + # backup existing file + shutil.copy(entry.get('name'), + "%s/%s_%s" % (self.ppath, bkupnam, datetime.now())) + self.logger.info("Backup of %s saved to %s" % + (entry.get('name'), self.ppath)) + except IOError, e: + self.logger.error("Failed to create backup file for %s" % \ + (entry.get('name'))) + self.logger.error(e) + return False + try: + newfile = open("%s.new"%(entry.get('name')), 'w') + if entry.get('encoding', 'ascii') == 'base64': + filedata = binascii.a2b_base64(entry.text) + elif entry.get('empty', 'false') == 'true': + filedata = '' + else: + if type(entry.text) == unicode: + filedata = entry.text.encode(self.setup['encoding']) + else: + filedata = entry.text + newfile.write(filedata) + newfile.close() + try: + os.chown(newfile.name, normUid(entry), normGid(entry)) + except KeyError: + self.logger.error("Failed to chown %s to %s:%s" % \ + (entry.get('name'), entry.get('owner'), + entry.get('group'))) + os.chown(newfile.name, 0, 0) + os.chmod(newfile.name, calcPerms(S_IFREG, entry.get('perms'))) + os.rename(newfile.name, entry.get('name')) + if entry.get('mtime', '-1') != '-1': + try: + os.utime(entry.get('name'), (int(entry.get('mtime')), + int(entry.get('mtime')))) + except: + self.logger.error("File %s mtime fix failed" \ + % (entry.get('name'))) + return False + return True + except (OSError, IOError), err: + if err.errno == errno.EACCES: + self.logger.info("Failed to open %s for writing" % (entry.get('name'))) + else: + print(err) + return False + + def Verifyhardlink(self, entry, _): + """Verify HardLink entry.""" + if entry.get('to') == None: + self.logger.error('Entry %s not completely specified. ' + 'Try running bcfg2-repo-validate.' % \ + (entry.get('name'))) + return False + try: + if os.path.samefile(entry.get('name'), entry.get('to')): + return True + self.logger.debug("Hardlink %s is incorrect" % \ + entry.get('name')) + entry.set('qtext', "Link %s to %s? [y/N] " % \ + (entry.get('name'), + entry.get('to'))) + return False + except OSError: + entry.set('current_exists', 'false') + entry.set('qtext', "Link %s to %s? [y/N] " % \ + (entry.get('name'), + entry.get('to'))) + return False + + def Installhardlink(self, entry): + """Install HardLink entry.""" + if entry.get('to') == None: + self.logger.error('Entry %s not completely specified. ' + 'Try running bcfg2-repo-validate.' % \ + (entry.get('name'))) + return False + self.logger.info("Installing Hardlink %s" % (entry.get('name'))) + if os.path.lexists(entry.get('name')): + try: + fmode = os.lstat(entry.get('name'))[ST_MODE] + if S_ISREG(fmode) or S_ISLNK(fmode): + self.logger.debug("Non-directory entry already exists at " + "%s. Unlinking entry." % (entry.get('name'))) + os.unlink(entry.get('name')) + elif S_ISDIR(fmode): + self.logger.debug("Directory already exists at %s" % \ + (entry.get('name'))) + self.cmd.run("mv %s/ %s.bak" % \ + (entry.get('name'), + entry.get('name'))) + else: + os.unlink(entry.get('name')) + except OSError: + self.logger.info("Hardlink %s cleanup failed" % \ + (entry.get('name'))) + try: + os.link(entry.get('to'), entry.get('name')) + return True + except OSError: + return False + + def Verifynonexistent(self, entry, _): + """Verify nonexistent entry.""" + # return true if path does _not_ exist + return not os.path.lexists(entry.get('name')) + + def Installnonexistent(self, entry): + '''Remove nonexistent entries''' + try: + os.remove(entry.get('name')) + return True + except OSError: + self.logger.error('Failed to remove %s' % entry.get('name')) + return False + + def Verifypermissions(self, entry, _): + """Verify Path type='permissions' entry""" + return self.Verifydirectory(entry, _) + + def Installpermissions(self, entry): + """Install POSIX permissions""" + if entry.get('perms') == None or \ + entry.get('owner') == None or \ + entry.get('group') == None: + self.logger.error('Entry %s not completely specified. ' + 'Try running bcfg2-repo-validate.' % (entry.get('name'))) + return False + try: + os.chown(entry.get('name'), normUid(entry), normGid(entry)) + os.chmod(entry.get('name'), calcPerms(S_IFDIR, entry.get('perms'))) + return True + except (OSError, KeyError): + self.logger.error('Permission fixup failed for %s' % \ + (entry.get('name'))) + return False + + def Verifysymlink(self, entry, _): + """Verify Path type='symlink' entry.""" + if entry.get('to') == None: + self.logger.error('Entry %s not completely specified. ' + 'Try running bcfg2-repo-validate.' % \ + (entry.get('name'))) + return False + try: + sloc = os.readlink(entry.get('name')) + if sloc == entry.get('to'): + return True + self.logger.debug("Symlink %s points to %s, should be %s" % \ + (entry.get('name'), sloc, entry.get('to'))) + entry.set('current_to', sloc) + entry.set('qtext', "Link %s to %s? [y/N] " % (entry.get('name'), + entry.get('to'))) + return False + except OSError: + entry.set('current_exists', 'false') + entry.set('qtext', "Link %s to %s? [y/N] " % (entry.get('name'), + entry.get('to'))) + return False + + def Installsymlink(self, entry): + """Install Path type='symlink' entry.""" + if entry.get('to') == None: + self.logger.error('Entry %s not completely specified. ' + 'Try running bcfg2-repo-validate.' % \ + (entry.get('name'))) + return False + self.logger.info("Installing symlink %s" % (entry.get('name'))) + if os.path.lexists(entry.get('name')): + try: + fmode = os.lstat(entry.get('name'))[ST_MODE] + if S_ISREG(fmode) or S_ISLNK(fmode): + self.logger.debug("Non-directory entry already exists at " + "%s. Unlinking entry." % \ + (entry.get('name'))) + os.unlink(entry.get('name')) + elif S_ISDIR(fmode): + self.logger.debug("Directory already exists at %s" %\ + (entry.get('name'))) + self.cmd.run("mv %s/ %s.bak" % \ + (entry.get('name'), + entry.get('name'))) + else: + os.unlink(entry.get('name')) + except OSError: + self.logger.info("Symlink %s cleanup failed" %\ + (entry.get('name'))) + try: + os.symlink(entry.get('to'), entry.get('name')) + return True + except OSError: + return False + + def InstallPath(self, entry): + """Dispatch install to the proper method according to type""" + ret = getattr(self, 'Install%s' % entry.get('type')) + return ret(entry) + + def VerifyPath(self, entry, _): + """Dispatch verify to the proper method according to type""" + ret = getattr(self, 'Verify%s' % entry.get('type')) + return ret(entry, _) |