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| author | jhugunin <jhugunin> | 2003-01-03 23:19:47 +0000 |
|---|---|---|
| committer | jhugunin <jhugunin> | 2003-01-03 23:19:47 +0000 |
| commit | 8ec8f0c0c6c68d9b13c3bc3416c3234eddd48379 (patch) | |
| tree | 8a2e07ba2a0048aae570053e019e02bd093f175f /lib/jython/Lib/base64.py | |
| parent | f685f979a4d3eb3844f74850deece1da265bc975 (diff) | |
| download | aspectj-8ec8f0c0c6c68d9b13c3bc3416c3234eddd48379.tar.gz aspectj-8ec8f0c0c6c68d9b13c3bc3416c3234eddd48379.zip | |
making jython-2.1 available for scripting
Diffstat (limited to 'lib/jython/Lib/base64.py')
| -rw-r--r-- | lib/jython/Lib/base64.py | 81 |
1 files changed, 81 insertions, 0 deletions
diff --git a/lib/jython/Lib/base64.py b/lib/jython/Lib/base64.py new file mode 100644 index 000000000..db212518e --- /dev/null +++ b/lib/jython/Lib/base64.py @@ -0,0 +1,81 @@ +#! /usr/bin/env python
+
+"""Conversions to/from base64 transport encoding as per RFC-1521."""
+
+# Modified 04-Oct-95 by Jack to use binascii module
+
+import binascii
+
+__all__ = ["encode","decode","encodestring","decodestring"]
+
+MAXLINESIZE = 76 # Excluding the CRLF
+MAXBINSIZE = (MAXLINESIZE/4)*3
+
+def encode(input, output):
+ """Encode a file."""
+ while 1:
+ s = input.read(MAXBINSIZE)
+ if not s: break
+ while len(s) < MAXBINSIZE:
+ ns = input.read(MAXBINSIZE-len(s))
+ if not ns: break
+ s = s + ns
+ line = binascii.b2a_base64(s)
+ output.write(line)
+
+def decode(input, output):
+ """Decode a file."""
+ while 1:
+ line = input.readline()
+ if not line: break
+ s = binascii.a2b_base64(line)
+ output.write(s)
+
+def encodestring(s):
+ """Encode a string."""
+ import StringIO
+ f = StringIO.StringIO(s)
+ g = StringIO.StringIO()
+ encode(f, g)
+ return g.getvalue()
+
+def decodestring(s):
+ """Decode a string."""
+ import StringIO
+ f = StringIO.StringIO(s)
+ g = StringIO.StringIO()
+ decode(f, g)
+ return g.getvalue()
+
+def test():
+ """Small test program"""
+ import sys, getopt
+ try:
+ opts, args = getopt.getopt(sys.argv[1:], 'deut')
+ except getopt.error, msg:
+ sys.stdout = sys.stderr
+ print msg
+ print """usage: %s [-d|-e|-u|-t] [file|-]
+ -d, -u: decode
+ -e: encode (default)
+ -t: encode and decode string 'Aladdin:open sesame'"""%sys.argv[0]
+ sys.exit(2)
+ func = encode
+ for o, a in opts:
+ if o == '-e': func = encode
+ if o == '-d': func = decode
+ if o == '-u': func = decode
+ if o == '-t': test1(); return
+ if args and args[0] != '-':
+ func(open(args[0], 'rb'), sys.stdout)
+ else:
+ func(sys.stdin, sys.stdout)
+
+def test1():
+ s0 = "Aladdin:open sesame"
+ s1 = encodestring(s0)
+ s2 = decodestring(s1)
+ print s0, `s1`, s2
+
+if __name__ == '__main__':
+ test()
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