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Þ'¯°ÌME[YéïĵÂCå½ Ué©Áû'Ê9%eÔðNU”ë‘ÌsD3/®+UI˜9h.WC”빓$#:pz:YÓ ¿xž* ³$Í +$kñAŠ‹†¢ Uê>¸)_š¬÷©ßAÂÔb9ÇU ¯¾á•9¯ÏÏ÷O÷¼¼Fähal1‰3Ì[Ïr•´UCksNÐ] R‘¸¥H+§Šé†c©vÖÞ0iÓ76s†î!§=ß ¼~Ô'°Ãmäoäš³ªøi1úÉ)³yV8 CLÄØÁ‘WYïi€H6ÖÑiámø^ÈY´°Ñ7¥Û*—Ñ©L«Qƒï—Ùrÿ ›£Ð*š¸ˆL©ˆ$ˆ ÷¾D§9È®«qbqC)–ˆïv´çñsÑVT­Ø, <àïºÀO«Jý·õ àfPìð .wFšir´þ’2_Y *Æ€x\« ì€9š@ Ž|F⇥ˆkZ@hÖÄ0t¿-<“‹qµ¾*ZL¤Ú)&BJpÓF5=$„at*Zš$’ÑtdûÝRI1 2Ž‰$€$I$#‰SÞ’Hë¬ï;Á$¡t$’`<(ñÇt)$‡Ð.Êf¢X’Kt=Éé$‚ˆªè¢oÝëòI%Rgcª÷ŠyI%¡‰ÿ !ñ)´õ $¤ Ô’IIGÿÙ#!/usr/bin/python3 # # Copyright (C) 2007 Enrico Zini # # This program 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 3 of the License, or # (at your option) any later version. # # This program 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 this program. If not, see . # Given a file, search Debian packages that can somehow handle it import sys # Requires python-extractor, python-magic and python-debtags import extractor import magic from debian import debtags import re from optparse import OptionParser import apt VERSION="0.1" mime_map = ( ( r'text/html\b', ("works-with::text","works-with-format::html") ), ( r'text/plain\b', ("works-with::text","works-with-format::plaintext") ), ( r'text/troff\b', ("works-with::text", "works-with-format::man") ), ( r'image/', ("works-with::image",) ), ( r'image/jpeg\b', ("works-with::image:raster","works-with-format::jpg") ), ( r'image/png\b', ("works-with::image:raster","works-with-format::png") ), ( r'application/pdf\b', ("works-with::text","works-with-format::pdf")), ( r'application/postscript\b', ("works-with::text","works-with-format::postscript")), ( r'application/x-iso9660\b', ('works-with-format::iso9660',)), ( r'application/zip\b', ('works-with::archive', 'works-with-format::zip')), ( r'application/x-tar\b', ('works-with::archive', 'works-with-format::tar')), ( r'audio/', ("works-with::audio",) ), ( r'audio/mpeg\b', ("works-with-format::mp3",) ), ( r'audio/x-wav\b', ("works-with-format::wav",) ), ( r'message/rfc822\b', ("works-with::mail",) ), ( r'video/', ("works-with::video",)), ( r'application/x-debian-package\b', ("works-with::software:package",)), ( r'application/vnd.oasis.opendocument.text\b', ("works-with::text",)), ( r'application/vnd.oasis.opendocument.graphics\b', ("works-with::image:vector",)), ( r'application/vnd.oasis.opendocument.spreadsheet\b', ("works-with::spreadsheet",)), ( r'application/vnd.sun.xml.base\b', ("works-with::db",)), ( r'application/rtf\b', ("works-with::text",)), ( r'application/x-dbm\b', ("works-with::db",)), # How do we tell these two apart? # ( 'application/ogg', ('works-with-format::oggvorbis',)), # ( 'application/ogg', ('works-with-format::oggtheora',)), # Missing tags # ( 'application/vnd.oasis.opendocument.presentation', ), # Still unhandled/unhandlable: # works-with::3dmodel - 3D Model # works-with::dictionary - Dictionaries # works-with::dtp - Desktop Publishing (DTP) # works-with::fax - Faxes # works-with::file - Files # works-with::font - Fonts # works-with::logfile - System Logs # works-with::music-notation - Music Notation # works-with::people - People # works-with::pim - Personal Information # works-with::software:source - Source code # works-with::spreadsheet - Spreadsheet # works-with::text - Text # works-with::unicode - Unicode # works-with-format::docbook - Docbook # works-with-format::info - Documentation in Info format # works-with-format::ldif - LDIF # works-with-format::sgml - SGML, Standard Generalized Markup Language # works-with-format::svg - SVG, Scalable Vector Graphics # works-with-format::tex - TeX, LaTeX and DVI # works-with-format::vrml - VRML 3D Model # works-with-format::xml - XML # works-with-format::xml:rss - RSS Rich Site Summary # works-with-format::xml:xslt - XSL Transformations (XSLT) ) extractor = extractor.Extractor() magic = magic.open(magic.MAGIC_MIME) magic.load() def mimetype(fname): keys = extractor.extract(fname) xkeys = {} for k, v in keys: if k in xkeys: xkeys[k].append(v) else: xkeys[k] = [v] namemagic = magic.file(fname) contentmagic = magic.buffer(open(fname, "r").read(4096)) return "mimetype" in xkeys and xkeys['mimetype'][0] or contentmagic or namemagic class Parser(OptionParser): def __init__(self, *args, **kwargs): OptionParser.__init__(self, *args, **kwargs) def error(self, msg): sys.stderr.write("%s: error: %s\n\n" % (self._get_prog_name(), msg)) self.print_help(sys.stderr) sys.exit(2) if __name__ == '__main__': parser = Parser(usage="usage: %prog [options] filename", version="%prog "+ VERSION, description="search Debian packages that can handle a given file") parser.add_option("--tagdb", default="/var/lib/debtags/package-tags", help="Tag database to use (default: %default)") parser.add_option("--action", default=None, help="Show the packages that allow the given action on the file (default: %default)") (options, args) = parser.parse_args() if len(args) == 0: parser.error("Please provide the name of a file to scan") # Read full database fullcoll = debtags.DB() tag_filter = re.compile(r"^special::.+$|^.+::TODO$") fullcoll.read(open(options.tagdb, "r"), lambda x: not tag_filter.match(x)) type = mimetype(args[0]) #print("Mime type:", type, file=sys.stderr) found = set() for match, tags in mime_map: match = re.compile(match) if match.match(type): for t in tags: found.add(t) if len(found) == 0: print("Unhandled mime type:", type, file=sys.stderr) else: if options.action != None: apt_cache = apt.Cache() query = found.copy() query.add("role::program") query.add("use::"+options.action) print("Debtags query:", " && ".join(query)) subcoll = fullcoll.filter_packages_tags(lambda pt: query.issubset(pt[1])) for i in subcoll.iter_packages(): aptpkg = apt_cache[i] desc = aptpkg.raw_description.split("\n")[0] print(i, "-", desc) else: print("Debtags query:", " && ".join(found)) query = found.copy() query.add("role::program") subcoll = fullcoll.filter_packages_tags(lambda pt: query.issubset(pt[1])) uses = map(lambda x:x[5:], filter(lambda x:x.startswith("use::"), subcoll.iter_tags())) print("Available actions:", ", ".join(uses)) # vim:set ts=4 sw=4: