# Program getcab.py
"""Extract all cabinet embedded in an .msi file.
Usage: python getcabs.py <.msi file>
Cab files are written to the current directory and are named after their
entries in the Media table.
This is a demonstation of the msidb module.
"""
import sys
import msidb
def main(msi_file_path):
print ("Processing %s" % msi_file_path)
con = msidb.connect(msi_file_path)
try:
cur = con.cursor()
cur.execute("select Cabinet from Media")
for cabinet, in cur:
if cabinet.startswith('#'):
name = cabinet[1:]
cur.execute("select Data from _Streams where Name=?", (name,))
cab_file_name = "%s.cab" % name
data, = cur.fetchone()
print ("Writing %s..." % cab_file_name)
cab_file = open(cab_file_name, 'wb')
try:
cab_file.write(data)
finally:
cab_file.close()
finally:
con.close()
if __name__ == '__main__':
if len(sys.argv) < 2:
print ("usage: python getcabs.py <.msi file>")
else:
main(sys.argv[1])
