vinetto-beta-0.07/0040755000076500007650000000000010634315631012537 5ustar katokatovinetto-beta-0.07/CHANGELOG0100644000076500007650000000000010572235456013743 0ustar katokatovinetto-beta-0.07/COPYING0100644000076500007650000003542710572235456013611 0ustar katokato GNU GENERAL PUBLIC LICENSE Version 2, June 1991 Copyright (C) 1989, 1991 Free Software Foundation, Inc. 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA Everyone is permitted to copy and distribute verbatim copies of this license document, but changing it is not allowed. Preamble The licenses for most software are designed to take away your freedom to share and change it. By contrast, the GNU General Public License is intended to guarantee your freedom to share and change free software--to make sure the software is free for all its users. This General Public License applies to most of the Free Software Foundation's software and to any other program whose authors commit to using it. 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IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. END OF TERMS AND CONDITIONS vinetto-beta-0.07/INSTALL0100644000076500007650000000121010572235456013566 0ustar katokato Vinetto http://vinetto.sourceforge.net Michel Roukine Prerequisites ------------- a) Python-2.3 or later. b) PIL (Python Imaging Library) 1.1.5 or later. To download PIL, go to : http://www.pythonware.com/products/pil/ Installation ------------ This is a standard Python Distutils distribution. To install vinetto, run the following commands as a super user: 1) tar xvzf vinetto-XXX.tar.gz 2) cd vinetto-XXX 3) python setup.py install This will install vinetto in appropriated path and resource files in /usr/share/vinetto. vinetto-beta-0.07/README0100644000076500007650000000656210634315110013415 0ustar katokato Vinetto http://vinetto.sourceforge.net Michel Roukine Version beta 0.07 (June 14 2007) ------------------ Introduction ------------ Vinetto is a forensics tool to examine Thumbs.db files. It is a command line python script that works on Linux, Mac OS X and Cygwin(win32). License ------- This program is distributed under the GNU General Public License - see the accompanying COPYING file for more details. Thanks ------ Many thanks to Christophe Monniez (d-fence.be) for the idea of this tool and for his encouragements. The vinetto code was written with grateful thanks to Martin Schwartz, author of Laola and its Hacking guide to the binary structure of Ole / Compound Documents. Project overview ---------------- 1 - Context : The Windows systems (98, ME, 2000 and XP) can store thumbnails and metadata of the picture files contained in the directories of its FAT32 or NTFS filesystems. Thumbnails and associated metadata are stored in Thumbs.db files. Thumbs.db files are undocumented OLE structured files. Once a picture file has been deleted from the filesystem, the related thumbnail and associated metada remain stored in the Thumbs.db file. So, the data contained in those thumbs.db files are an helpful source of information for the forensics investigator. 2 - What the software is intended to do : Vinetto extracts thumbnails and associated metadata from the Thumbs.db files. Moreover [when vinetto will be 0.98 beta] it will function according to three modes: -> elementary mode : in this mode vinetto will only extract thumbnails and metadata from chosen Thumbs.db file. -> directory mode : in this mode vinetto will check for consistency between directory content and related Thumbs.db file i.e. it will report thumbnails that have a missing associated file into the directory. -> filesystem mode : in this mode vinetto will process whole FAT or NTFS partition. 3 - What purpose it will serve : Vinetto will help *nix-based forensics investigators to : -> easily preview thumbnails of deleted pictures on Windows systems, -> obtain informations (dates, path, ...) about those deleted images. 4 - Misc. : Vinetto is intended to be integrated into forensics liveCD like FCCU GNU/Linux Forensic Boot CD. Requirements ------------ Python-2.3 or later. PIL (Python Imaging Library) 1.1.5 or later. PIL is used to attempt correct reconstitution the Type 1 thumbnails. Current known limitations ------------------------- AFAIK Windows(R)(TM) uses two format types to store thumbnails in its Thumbs.db files. I called these formats Type 1 and Type 2. Type 2 is compliant to jpeg format. But Type 1 seems to be a family of jpeg-alike formats with special headers, huffman and quantization tables. *** Currently, vinetto does not manage to reconstitute correctly some Type 1 thumbnails. *** Usage ----- usage: vinetto [OPTIONS] [-s] [-U] [-o DIR] file options: --version show program's version number and exit -h, --help show this help message and exit -o DIR write thumbnails to DIR -H write html report to DIR -U use utf8 encodings -s create symlink of the image realname to the numbered name in DIR/.thumbs Metadata list will be written on standard output. -------------- June 14 2007 Michel Roukine vinetto-beta-0.07/res/0040755000076500007650000000000010634315666013340 5ustar katokatovinetto-beta-0.07/res/header0100644000076500007650000000023610572235455014507 0ustar katokatoJFIF``C     C   vinetto-beta-0.07/res/HtRepTemplate.html0100644000076500007650000000567110572235455016750 0ustar katokato Vinetto -H report

Vinetto -- thumbnails extraction report

 

__DATEREPORT__
 

 
 

File metadata:
 

Directory: __TDBDIRNAME__
Filename: __TDBFNAME__
Modification: __TDBMTIME__
File size: __FILESIZE__
MD5 digest:__MD5__
 

__ROOTENTRYTST__

 
__ROWNUMBER__    
__IMGTAG__0
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__IMGTAG__2
__IMGTAG__3
__IMGTAG__4
     __TNID__0 __TNID__1 __TNID__2 __TNID__3 __TNID__4
 

Orphan Catalog entries:
 

__ORPHANENTRY__
 

__TYPEXTRACT__

 
__VVERSION__ vinetto-beta-0.07/res/huffman0100644000076500007650000000033010572235455014676 0ustar katokato }!1AQa"q2#BR$3br %&'()*456789:CDEFGHIJSTUVWXYZcdefghijstuvwxyzvinetto-beta-0.07/res/quantization0100644000076500007650000000010510572235455016000 0ustar katokatoC    $.' ",#(7),01444'9=82<.342vinetto-beta-0.07/setup.py0100755000076500007650000000104410572235456014257 0ustar katokatofrom distutils.core import setup setup (name='vinetto', version='0.06alpha', scripts=['vinetto'], py_modules=['vinutils', 'vinreport'], data_files=[('/usr/share/vinetto', ['res/header', 'res/huffman', \ 'res/quantization', \ 'res/HtRepTemplate.html'])], description='vinetto : a forensics tool to examine Thumbs.db files.', author='Michel Roukine', author_email='rukin@users.sf.net', url='http://vinetto.sourceforge.net/', license='GNU GPL', platforms='LINUX', ) vinetto-beta-0.07/TODO0100644000076500007650000000000010572235456013221 0ustar katokatovinetto-beta-0.07/vinetto0100755000076500007650000003637010572235456014172 0ustar katokato#!/usr/local/bin/python # -*- coding: UTF-8 -*- """ ----------------------------------------------------------------------------- Vinetto : a forensics tool to examine Thumbs.db files Copyright (C) 2005, 2006 by Michel Roukine This file is part of Vinetto. Vinetto is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. Vinetto is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with the vinetto package; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA ----------------------------------------------------------------------------- """ __revision__ = "$Revision: 59 $" __version__ = "0.06" __author__ = 'Michel Roukine' import sys import os import StringIO import md5 import vinreport from optparse import OptionParser from struct import unpack from binascii import unhexlify from time import ctime from vinutils import addCatEntry, nbCatEnt, nbTNstr, TNfname, catIndxOutOfSeq, \ tnStreamOutOfSeq, addTNStream, extractStats PPS_TYPES = ["undefined", "storage", "stream", "undefined", "undefined", "root"] EOI = unhexlify('ffd9') HEADER1 = unhexlify('0c00') PIL = "" NUMBERED_THUMBS_DIR = ".thumbs" def getargs(): """Return arguments passed to vinetto on the command line. """ verstr = "%prog " + __version__ + " (r" + __revision__[11:-2] +")\n\n" +\ "Copyright (C) 2005-2006 Michel Roukine.\n" + \ "Vinetto is open source software," + \ " see http://vinetto.sourceforge.net/" parser = OptionParser(usage="%prog [OPTIONS] [-s] [-U] [-o DIR] file", version=verstr) parser.add_option("-o", dest="outputdir", help="write thumbnails to DIR", metavar="DIR") parser.set_defaults(htmlrep=False) parser.add_option("-H", action="store_true", dest="htmlrep", help="write html report to DIR") parser.set_defaults(encoding=False) parser.add_option("-U", action="store_true", dest="encoding", help="use utf8 encodings") parser.set_defaults(symlinks=False) parser.add_option("-s", action="store_true", dest="symlinks", help="create symlink of the image realname to the numbered name in DIR/.thumbs") opts, pargs = parser.parse_args() if len(pargs) != 1: parser.error("incorrect number of arguments") if (opts.outputdir == None) and (opts.htmlrep == True): parser.error("-H option requires -o with a directory name") os.system("mkdir " + opts.outputdir + "/" + NUMBERED_THUMBS_DIR) return (pargs[0], opts.outputdir, opts.htmlrep, opts.encoding, opts.symlinks) def getencodings(): """What encoding we use?""" if utf8encoding: fileencoding = 'utf8' else: fileencoding = 'iso-8859-1' return fileencoding def encodefilename(originame): """Convert filename to the global encoding. """ TNname = unicode(originame, 'utf-16-le').encode(getencodings(), 'replace') return TNname def conv2pytime (win32filetime): """Convert win32 timestamp to python time. """ SECS_BETWEEN_EPOCHS = 11644473600 SECS_TO_100NS = 10000000 if win32filetime == 0: return 0 else: return (win32filetime / SECS_TO_100NS) - SECS_BETWEEN_EPOCHS def nextBlock (TDB, Table, indx): """Return next block. """ iFAT = indx / 128 # FAT block number to search in iSECT = indx % 128 # SECTor to search in the FAT block offst = Table [iFAT] * 512 + 0x200 + iSECT*4 return unpack("> sys.stderr, "Error: ", tDBfname, "does not exist" sys.exit(1) elif not os.path.isfile(tDBfname): print >> sys.stderr, "Error: ", tDBfname, "not a file" sys.exit(1) elif not os.access(tDBfname, os.R_OK): print >> sys.stderr, "Error: ", tDBfname, "not readable" sys.exit(1) # Opening Thumbs.db file thumbsDB = open(tDBfname,"rb").read() longueur = len(thumbsDB) if (longueur % 512 ) != 0: print >> sys.stderr, " ** Warning: length " + tDBfname + " : " \ + str(longueur) + ", non multiple 512" # Initializing extraction and optional html report if outputdir != None : if not os.path.exists(outputdir): try : os.mkdir(outputdir) print 'Note: ', outputdir, ' was created' except EnvironmentError, e: print >> sys.stderr, "Error creating", outputdir sys.exit(1) elif not os.path.isdir(outputdir): print >> sys.stderr, 'Error: ', outputdir, ' is not a directory' sys.exit(1) elif not os.access(outputdir, os.W_OK): print >> sys.stderr, 'Error: ', outputdir, ' not writable' sys.exit(1) outputdir += "/" try: import Image PIL = "imported" except ImportError, e: print >> sys.stderr, "" print >> sys.stderr, " ** Warning: Cannot find \"Image\" module." print >> sys.stderr, " Vinetto will only extract Type 2 thumbnails." print >> sys.stderr, "" header = open("/usr/share/vinetto/header","rb").read() quantization = open("/usr/share/vinetto/quantization","rb").read() huffman = open("/usr/share/vinetto/huffman","rb").read() if htmlrep == True: report = vinreport.HtRep(tDBfname, outputdir, getencodings(), __version__ + " (r" + \ __revision__[11:-2] +")") md5tDB = md5.new(thumbsDB).hexdigest() report.SetFileSection(longueur, md5tDB) # ----------------------------------------------------------------------------- # Analyzing header block ... if "\xd0\xcf\x11\xe0\xa1\xb1\x1a\xe1" != thumbsDB[0:8] : print >> sys.stderr, " *** Error " + tDBfname + ": header signature error " sys.exit(8) nbFATblocks = unpack("= 4096 : # stream located in the FAT sr = "" currentStreamBlock = pps_sb while currentStreamBlock != -2: sOffset = 0x200 + currentStreamBlock * 0x200 if bytesToWrite >= 512: sr = sr + thumbsDB[sOffset:sOffset + 512] else: sr = sr + thumbsDB[sOffset:sOffset + bytesToWrite] bytesToWrite = bytesToWrite - 512 currentStreamBlock = nextBlock (thumbsDB, FATblocks, currentStreamBlock) else: # stream located in the MiniFAT sr = "" currentStreamMiniBlock = pps_sb while currentStreamMiniBlock != -2 : # computing offset of the miniBlock to copy # 1 : which block of the miniFATstream ? nb = currentStreamMiniBlock / 8 # 2 : where is this block ? bl = MiniFATstreamBlocks[nb] # 3 : which offset from the start of block ? ioffset = (currentStreamMiniBlock % 8) * 64 sOffset = 0x200 + bl*0x200 + ioffset if bytesToWrite >= 64: sr = sr + thumbsDB[sOffset:sOffset + 64 ] else: sr = sr + thumbsDB[sOffset:sOffset + bytesToWrite] bytesToWrite = bytesToWrite - 64 # computing next currentStreamMiniBlock currentStreamMiniBlock = nextBlock (thumbsDB, MiniFATblocks, currentStreamMiniBlock) # extraction stream processing ... --------------------------------- longueur = len(sr) # is this a Catalog ? if rawname == "Catalog" : # ------------------------------------------------------------- # Skipping catalog header block ... recordLen = unpack("> sys.stderr, " *** Err: missing EOI in stream", SID sys.exit(2) # --------------------------- header 1 ------------------------ # is first header OK ? if sr[0:2] != HEADER1: print >> sys.stderr, \ " *** Err: unrecognized header in stream", SID sys.exit(3) # is length OK ? if unpack("> sys.stderr, " *** Err: length error in stream", SID sys.exit(4) # --------------------------- header 2 ------------------------ # is it a type 2 thumbnail ? (full jpeg) if sr[0x0c:0x10] == "\xff\xd8\xff\xe0" : if outputdir != None : open(outputdir + "/" + NUMBERED_THUMBS_DIR + "/" + TNfname(SIDstr, "2") + ".jpg", \ "wb").write(sr[0x0c:]) elif unpack("> sys.stderr, \ " *** Err : length(2) error in stream", SID sys.exit(5) # Type 1 TN processing ... if (PIL == "imported") and (outputdir != None): type1sr = header[:0x14] type1sr = type1sr + quantization type1sr = type1sr + sr[0x1e:0x34] type1sr = type1sr + huffman type1sr = type1sr + sr[0x34:] im = Image.open(StringIO.StringIO(type1sr)) r, g, b, a = im.split() im = Image.merge("RGB", (b, g, r)) im = im.transpose(Image.FLIP_TOP_BOTTOM) im.save(outputdir + TNfname(SIDstr, "1") + ".jpg", \ "JPEG", quality=100) elif outputdir != None: # Cannot extract : PIL not imported addTNStream(int(SIDstr), "1", "") else : print >> sys.stderr, \ " *** Err : header (2) error in stream", SID sys.exit(6) # ----------------------------------------------------------------- elif pps_type == 5: # Root Entry REtimestamp = pps_ts2 print print " Root Entry modify timestamp :", \ ctime(conv2pytime(REtimestamp)) if htmlrep == True: report.SetREtst (ctime(conv2pytime(REtimestamp))) print print " ------------------------------------------------------" print SID = SID + 1 currentBlock = nextBlock(thumbsDB, FATblocks, currentBlock) print print " ------------------------------------------------------" print if catIndxOutOfSeq() == True: print >> sys.stderr, " * Info: ", tDBfname, "Catalog",\ " index number out of usual sequence" if tnStreamOutOfSeq() == True: print >> sys.stderr, " * Info: ", tDBfname, \ "thumbnail stream index number out of usual sequence" if (outputdir != None) and (nbCatEnt() != nbTNstr()): print >> sys.stderr, " ** Warning: ", tDBfname, " -- number of extracted ", \ "thumbnails does not match number of Catalog entries" statstring = extractStats(outputdir) print statstring if htmlrep == True: report.flush(statstring) vinetto-beta-0.07/vinreport.py0100644000076500007650000002043610572235455015151 0ustar katokato# -*- coding: UTF-8 -*- """ module vinreport.py ----------------------------------------------------------------------------- Vinetto : a forensics tool to examine Thumbs.db files Copyright (C) 2005, 2006 by Michel Roukine This file is part of Vinetto. Vinetto is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. Vinetto is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with the vinetto package; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA ----------------------------------------------------------------------------- """ __revision__ = "$Revision: 47 $" __version__ = "0.02" __author__ = 'Michel Roukine' HtHeader = [] HtPicRow = [] HtOrphans = [] HtFooter = [] IMGTAG = "\"__TNNAME__\"" from time import time, ctime from os.path import dirname, basename, abspath, getmtime from vinutils import getCatEntry class Report: """ Vinetto report SuperClass. """ def __init__ (self, target, outputdir, verstr): """ Initialize a new Report instance. """ self.tDBfname = basename(target) self.tDBdirname = abspath(dirname(target)) self.tDBmtime = getmtime(target) self.outputdir = outputdir self.verstr = verstr class HtRep(Report): """ Html vinetto elementary mode report Class. """ def __init__ (self, tDBfname, outputdir, charset, verstr): """ Initialize a new HtRep instance. """ Report.__init__(self, tDBfname, outputdir, verstr) self.rownumber = 0 separatorID = 0 for ligne in open("/usr/share/vinetto/HtRepTemplate.html", "r").readlines(): if ligne.find("__CHARSET__") > 0: ligne = ligne.replace("__CHARSET__", charset) if ligne.find("__ITS__") >= 0: separatorID += 1 continue if separatorID == 0: HtHeader.append(ligne) elif separatorID == 1: HtPicRow.append(ligne) elif separatorID == 2: HtOrphans.append(ligne) elif separatorID == 3: HtFooter.append(ligne) self.TNidList = [] self.TNtsList = [] self.TNnameList = [] def SetFileSection (self, FileSize, md5): """ Initialize data of the report file section. """ self.FileSize = FileSize self.md5 = md5 def SetREtst (self, REtst): """ Initialize data of the report file section. """ self.REtst = REtst def headwrite (self): """ Writes report header. """ self.repfile = open(self.outputdir + "index.html", "w") for ligne in HtHeader: ligne = ligne.replace("__DATEREPORT__", "Report date : " + ctime(time())) ligne = ligne.replace("__TDBDIRNAME__", self.tDBdirname) ligne = ligne.replace("__TDBFNAME__", self.tDBfname) ligne = ligne.replace("__TDBMTIME__", ctime(self.tDBmtime)) ligne = ligne.replace("__FILESIZE__", str(self.FileSize)) ligne = ligne.replace("__MD5__", self.md5) ligne = ligne.replace("__ROOTENTRYTST__", \ "Root Entry modify timestamp : " + self.REtst) self.repfile.write(ligne) def close(self, statstring): """ Terminate processing HtRep instance. """ for ligne in HtFooter: ligne = ligne.replace("__TYPEXTRACT__", statstring) ligne = ligne.replace("__VVERSION__", "Vinetto " + self.verstr) self.repfile.write(ligne) self.repfile.close() def rowflush(self): """ Process a report line. """ self.rownumber += 1 for ligne in HtPicRow: ligne = ligne.replace("__ROWNUMBER__", str(self.rownumber)) for j in range(len(self.tnId)): ligne = ligne.replace("__TNfilled__" + str(j), "1") buff = IMGTAG.replace("__TNFNAME__", self.tnFname[j]) buff = buff.replace("__TNNAME__", self.tnName[j]) ligne = ligne.replace("__IMGTAG__" + str(j), buff) ligne = ligne.replace("__TNID__" + str(j), self.tnId[j]) for j in range(len(self.tnId),5): ligne = ligne.replace("__TNfilled__" + str(j), "0") ligne = ligne.replace("__IMGTAG__" + str(j), "   ") ligne = ligne.replace("__TNID__" + str(j), " ") self.repfile.write(ligne) self.repfile.write("" + \ "
 

") for i in range(len(self.tnId)): if self.tnName[i] != "": self.repfile.write("" + self.tnId[i] + " -- " + \ self.tnTs[i].replace(" ", "  ") + " -- " + \ self.tnName[i] + "
\n") else: self.repfile.write("" + self.tnId[i] + " ** " + \ " no matching Catalog entry found " + \ " ** " + "
\n") self.repfile.write("

 
") self.tnId = [] self.tnFname = [] self.tnTs = [] self.tnName = [] def printOrphanCatEnt(self, OrphanICat): """ Print orphan catalog entry. """ if OrphanICat != []: endOrphanSection = False for ligne in HtOrphans: if ligne.find("__ORPHANENTRY__") >= 0: oprhanLine = ligne break else: self.repfile.write(ligne) for iCat in OrphanICat: catEntry = getCatEntry (iCat) Ts = catEntry[0][0] Name = catEntry[0][1] str = "" + ("%04i" % iCat) + " -- " + \ Ts.replace(" ", "  ") + " -- " + Name + "
\n" ligne = oprhanLine.replace("__ORPHANENTRY__", str) self.repfile.write(ligne) for ligne in HtOrphans: if ligne.find("__ORPHANENTRY__") < 0: if endOrphanSection: self.repfile.write(ligne) else: endOrphanSection = True def flush(self, statstring): """ Process the report body and the report end. """ from vinutils import TNStreams from vinutils import Catalog self.headwrite() self.rownumber = 0 self.tnId = [] self.tnFname = [] self.tnTs = [] self.tnName = [] # for (iTN, vType, filename) in TNStreams: for iTN in TNStreams: for (vType, filename) in TNStreams[iTN]: self.tnId.append("%04i" % iTN) self.tnFname.append(filename) catEntry = getCatEntry (iTN) if len(catEntry) == 0: Ts = "" Name = "" elif len(catEntry) >= 1: # duplicate index numbers not properly handled !!! Ts = catEntry[0][0] Name = catEntry[0][1] self.tnTs.append(Ts) self.tnName.append(Name) if len(self.tnId) >= 5: self.rowflush() if len(self.tnId) > 0: self.rowflush() # Scanning for orphan catalog entries OrphanICat = [] for iCat in Catalog: if not TNStreams.has_key(iCat): OrphanICat.append(iCat) self.printOrphanCatEnt(OrphanICat) self.close(statstring) vinetto-beta-0.07/vinutils.py0100644000076500007650000001044210572235455014772 0ustar katokato# -*- coding: UTF-8 -*- """ module vinutils.py ----------------------------------------------------------------------------- Vinetto : a forensics tool to examine Thumbs.db files Copyright (C) 2005, 2006 by Michel Roukine This file is part of Vinetto. Vinetto is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. Vinetto is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with the vinetto package; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA ----------------------------------------------------------------------------- """ __revision__ = "$Revision: 47 $" __version__ = "0.01" __author__ = 'Michel Roukine' Catalog = {} catIndxOutOfSeqFlag = False iCatPrec = None TNStreams = {} tnStreamOutOfSeqFlag = False iTnsPrec = None def catIndxOutOfSeq(): """Return catIndxOutOfSeqFlag value. """ return catIndxOutOfSeqFlag def tnStreamOutOfSeq(): """Return tnStreamOutOfSeqFlag value. """ return tnStreamOutOfSeqFlag def addCatEntry (iCat, timestamp, TNname): """Add a new Catalog entry. """ global catIndxOutOfSeqFlag, iCatPrec if iCatPrec != None: if iCat != (iCatPrec + 1) : catIndxOutOfSeqFlag = True if Catalog.has_key(iCat): Catalog[iCat].append((timestamp, TNname)) else: Catalog[iCat] = [(timestamp, TNname)] iCatPrec = iCat return def addTNStream (iTN, vType, filename): """Add new thumbnail stream references. """ global tnStreamOutOfSeqFlag, iTnsPrec if iTnsPrec != None: if iTN != (iTnsPrec + 1) : tnStreamOutOfSeqFlag = True if TNStreams.has_key(iTN): TNStreams[iTN].append((vType, filename)) else: TNStreams[iTN] = [(vType, filename)] iTnsPrec = iTN return def nbCatEnt (): """Return number of Catalog entry. """ nb = 0 for k in Catalog: nb += len(Catalog[k]) return nb def nbTNstr (*vt): """Return number of extracted/unextracted thumbnails. """ nb = 0 if len(vt) == 0: for k in TNStreams: nb += len(TNStreams[k]) return nb else : nb = 0 for k in TNStreams: for (vType, filename) in TNStreams[k]: if vt[0] == vType : nb += 1 return nb def extractStats(outputdir): """Return extraction statistics. """ extr = {"1":0, "2":0} unextr = {"1":0, "2":0} statstring = "" odstr = "" if outputdir != None: odstr = " to " + outputdir for k in TNStreams: for (vType, filename) in TNStreams[k]: if filename == "" : unextr[vType] += 1 else: extr[vType] += 1 for vt in extr: if extr[vt] > 0: statstring += str(extr[vt]) + " Type " + vt + \ " thumbnails extracted" + odstr + "\n" for vt in unextr: if unextr[vt] > 0: statstring += str(unextr[vt]) + " Type " + vt + \ " thumbnails unextracted" + odstr + "\n" return statstring def getCatEntry(iCat): """Return iCat Catalog entry. """ if Catalog.has_key(iCat): return Catalog[iCat] return [] def fincrement (filename): """ Compute next "valid" filename for a given SID. """ if filename.find("_") < 0: return filename + "_1" else: i = int(filename[filename.find('_') + 1:]) return filename[:filename.find('_') + 1] + str(i + 1) def TNfname(SIDstr, vType): """ Compute filenames for thumbnails. """ computedfn = SIDstr k = int(SIDstr) if TNStreams.has_key(k): # duplicate index numbers for (vtyp, filename) in TNStreams[k]: if computedfn == filename: computedfn = fincrement (filename) addTNStream(k, vType, computedfn) return computedfn