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Convert all ghostscript spoofs to test plugins

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This commit is contained in:
James R. Barlow
2020-06-09 00:00:25 -07:00
parent c22f245606
commit 2059e916da
6 changed files with 114 additions and 133 deletions
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tests/spoof/gs_feature_elision.py
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#!/usr/bin/env python3
# © 2016 James R. Barlow: github.com/jbarlow83
#
# Permission is hereby granted, free of charge, to any person obtaining a
# copy of this software and associated documentation files (the
# "Software"), to deal in the Software without restriction, including
# without limitation the rights to use, copy, modify, merge, publish,
# distribute, sublicense, and/or sell copies of the Software, and to
# permit persons to whom the Software is furnished to do so, subject to
# the following conditions:
#
# The above copyright notice and this permission notice shall be included
# in all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
# OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
# IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
# CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
# TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
# SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
import os
import sys
from subprocess import check_call
from gs import real_ghostscript
"""Replicate one type of Ghostscript feature elision warning during
PDF/A creation."""
elision_warning = """GPL Ghostscript 9.20: Setting Overprint Mode to 1
not permitted in PDF/A-2, overprint mode not set"""
def main():
if '--version' in sys.argv:
print('9.20')
print('SPOOFED: ' + os.path.basename(__file__))
sys.exit(0)
gs_args = ['gs'] + sys.argv[1:]
check_call(gs_args)
if '-sDEVICE=pdfwrite' in sys.argv[1:]:
print(elision_warning)
sys.exit(0)
if __name__ == '__main__':
main()
tests/spoof/gs_pdfa_failure.py
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#!/usr/bin/env python3
# © 2016 James R. Barlow: github.com/jbarlow83
#
# Permission is hereby granted, free of charge, to any person obtaining a
# copy of this software and associated documentation files (the
# "Software"), to deal in the Software without restriction, including
# without limitation the rights to use, copy, modify, merge, publish,
# distribute, sublicense, and/or sell copies of the Software, and to
# permit persons to whom the Software is furnished to do so, subject to
# the following conditions:
#
# The above copyright notice and this permission notice shall be included
# in all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
# OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
# IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
# CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
# TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
# SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
import os
import sys
from gs import real_ghostscript
"""Replicate Ghostscript PDF/A conversion failure by suppressing some
arguments"""
def main():
if '--version' in sys.argv:
print('9.20')
print('SPOOFED: ' + os.path.basename(__file__))
sys.exit(0)
# Unless some argument is calling for PDFA generation, forward to
# real ghostscript
if not any(arg.startswith('-dPDFA') for arg in sys.argv):
real_ghostscript(sys.argv)
return
# Remove the two arguments that tell ghostscript to create a PDF/A
# Does not remove the Postscript definition file - not necessary
# to cause PDF/A creation failure
argv = []
for arg in sys.argv:
if arg.startswith('-dPDFA'):
continue
elif arg.startswith('-dPDFACompatibilityPolicy'):
continue
argv.append(arg)
real_ghostscript(argv)
if __name__ == '__main__':
main()
tests/spoof/gs_raster_failure.py
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#!/usr/bin/env python3
# © 2016 James R. Barlow: github.com/jbarlow83
#
# Permission is hereby granted, free of charge, to any person obtaining a
# copy of this software and associated documentation files (the
# "Software"), to deal in the Software without restriction, including
# without limitation the rights to use, copy, modify, merge, publish,
# distribute, sublicense, and/or sell copies of the Software, and to
# permit persons to whom the Software is furnished to do so, subject to
# the following conditions:
#
# The above copyright notice and this permission notice shall be included
# in all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
# OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
# IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
# CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
# TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
# SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
import os
import sys
from gs import real_ghostscript
"""Replicate Ghostscript raster failure while allowing rendering"""
def main():
if '--version' in sys.argv:
print('9.20')
print('SPOOFED: ' + os.path.basename(__file__))
sys.exit(0)
# For non-image rastering calls, use real ghostscript
if '-sDEVICE=pdfwrite' in sys.argv or '-sDEVICE=txtwrite' in sys.argv:
real_ghostscript(sys.argv)
return
# Fail
print("ERROR: Ghost story archive not found", file=sys.stderr)
sys.exit(1)
if __name__ == '__main__':
main()
tests/spoof/gs_render_failure.py
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#!/usr/bin/env python3
# © 2016-18 James R. Barlow: github.com/jbarlow83
#
# Permission is hereby granted, free of charge, to any person obtaining a
# copy of this software and associated documentation files (the
# "Software"), to deal in the Software without restriction, including
# without limitation the rights to use, copy, modify, merge, publish,
# distribute, sublicense, and/or sell copies of the Software, and to
# permit persons to whom the Software is furnished to do so, subject to
# the following conditions:
#
# The above copyright notice and this permission notice shall be included
# in all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
# OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
# IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
# CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
# TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
# SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
"""Replicate Ghostscript render failure while allowing rasterizing"""
import os
import sys
from gs import real_ghostscript
def main():
if '--version' in sys.argv:
print('9.20')
print('SPOOFED: ' + os.path.basename(__file__))
sys.exit(0)
# For any rasterize calls (device != pdfwrite) call real ghostscript
if '-sDEVICE=pdfwrite' not in sys.argv:
real_ghostscript(sys.argv)
return
# Fail
print("ERROR: Casper is not a friendly ghost", file=sys.stderr)
sys.exit(1)
if __name__ == '__main__':
main()