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Viewing changes to loggerhead/controllers/download_ui.py

  • Committer: Robey Pointer
  • Date: 2006-12-16 01:44:06 UTC
  • Revision ID: robey@lag.net-20061216014406-gpm7byj28rfaelfu
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loggerhead/controllers/download_ui.py
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#
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# Copyright (C) 2006  Robey Pointer <robey@lag.net>
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# Copyright (C) 2006  Goffredo Baroncelli <kreijack@inwind.it>
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
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#
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import logging
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import mimetypes
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import time
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from paste import httpexceptions
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from paste.request import path_info_pop
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log = logging.getLogger("loggerhead.controllers")
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class DownloadUI (object):
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    def __init__(self, branch):
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        # BranchView object
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        self._branch = branch
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        self.log = branch.log
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    def default(self, request, response):
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        # /download/<rev_id>/<file_id>/[filename]
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        z = time.time()
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        h = self._branch.history
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        h._branch.lock_read()
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        try:
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            args = []
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            while 1:
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                arg = path_info_pop(request.environ)
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                if arg is None:
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                    break
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                args.append(arg)
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            if len(args) < 2:
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                raise httpexceptions.HTTPMovedPermanently(self._branch.url('../changes'))
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            revid = h.fix_revid(args[0])
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            file_id = args[1]
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            path, filename, content = h.get_file(file_id, revid)
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            mime_type, encoding = mimetypes.guess_type(filename)
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            if mime_type is None:
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                mime_type = 'application/octet-stream'
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            self.log.info('/download %s @ %s (%d bytes)', path, h.get_revno(revid), len(content))
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            response.headers['Content-Type'] = mime_type
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            response.headers['Content-Length'] = len(content)
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            response.headers['Content-Disposition'] = 'attachment; filename=%s'%(filename,)
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            response.write(content)
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        finally:
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            h._branch.unlock()