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  • Committer: Robert Collins
  • Date: 2005-10-17 08:15:09 UTC
  • mto: This revision was merged to the branch mainline in revision 1459.
  • Revision ID: robertc@lifelesslap.robertcollins.net-20051017081509-f108fef422640aba
gpg signing of content

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bzrlib/gpg.py
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"""GPG signing and checking logic."""
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import errno
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import subprocess
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import bzrlib.errors as errors
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class GPGStrategy(object):
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    """GPG Signing and checking facilities."""
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    def _command_line(self):
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        return self._config.gpg_signing_command() + ' --clearsign'
 
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        return [self._config.gpg_signing_command(), '--clearsign']
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    def __init__(self, config):
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        self._config = config
 
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    def sign(self, content):
 
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        try:
 
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            process = subprocess.Popen(self._command_line(),
 
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                                       stdin=subprocess.PIPE,
 
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                                       stdout=subprocess.PIPE)
 
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            try:
 
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                result = process.communicate(content)[0]
 
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                if process.returncode is None:
 
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                    process.wait()
 
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                if process.returncode != 0:
 
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                    raise errors.SigningFailed(self._command_line())
 
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                return result
 
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            except IOError, e:
 
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                if e.errno == errno.EPIPE:
 
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                    raise errors.SigningFailed(self._command_line())
 
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        except ValueError:
 
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            # bad subprocess parameters, should never happen.
 
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            raise
 
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        except OSError, e:
 
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            if e.errno == errno.ENOENT:
 
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                # gpg is not installed
 
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                raise errors.SigningFailed(self._command_line())
 
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            else:
 
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                raise