X-Git-Url: https://git.phdru.name/?a=blobdiff_plain;f=mimedecode.py;h=f7f2e7fb2db8d62e2dd679fba3e5374bef78fce1;hb=2b81e4c6b65e7f0e91a98da32fa46c884bedf6aa;hp=9aab1b3e93c499fd9df152484b8481d0dd411f0e;hpb=29fcdcb768fbd333ee3aefa94336013bbcb6f298;p=mimedecode.git

diff --git a/mimedecode.py b/mimedecode.py
index 9aab1b3..f7f2e7f 100755
--- a/mimedecode.py
+++ b/mimedecode.py
@@ -6,11 +6,6 @@ from mimedecode_version import __version__, __author__, __copyright__, __license
 import sys, os
 import email
 
-try:
-    from cStringIO import StringIO
-except ImportError:
-    from StringIO import StringIO
-
 me = os.path.basename(sys.argv[0])
 
 
@@ -30,9 +25,6 @@ Usage: %s [-h|--help] [-V|--version] [-cCDP] [-H|--host=hostname] [-f charset] [
     sys.exit(code)
 
 
-def output(s):
-    gopts.outfile.write(s)
-
 def output_headers(msg):
     unix_from = msg.get_unixfrom()
     if unix_from:
@@ -188,12 +180,6 @@ def recode_charset(msg, s):
 def totext(msg, instring):
     "Convert instring content to text"
 
-    if msg.is_multipart(): # Recursively decode all parts of the multipart message
-        newfile = StringIO(msg.as_string())
-        newfile.seek(0)
-        decode_file(newfile)
-        return
-
     # Decode body and recode charset
     s = decode_body(msg, instring)
     if gopts.recode_charset:
@@ -245,34 +231,40 @@ def decode_part(msg):
     totext(msg, outstring)
 
 
-def decode_file(infile):
-    "Decode the entire message"
+def decode_multipart(msg):
+    "Decode multipart"
 
-    msg = email.message_from_file(infile)
-    boundary = msg.get_boundary()
+    decode_headers(msg)
+    output_headers(msg)
 
-    if msg.is_multipart():
-        decode_headers(msg)
-        output_headers(msg)
+    if msg.preamble: # Preserve the first part, it is probably not a RFC822-message
+        output(msg.preamble) # Usually it is just a few lines of text (MIME warning)
 
-        if msg.preamble: # Preserve the first part, it is probably not a RFC822-message
-            output(msg.preamble) # Usually it is just a few lines of text (MIME warning)
+    boundary = msg.get_boundary()
 
-        for subpart in msg.get_payload():
+    for subpart in msg.get_payload():
+        if boundary:
             output("\n--%s\n" % boundary)
-            decode_part(subpart)
 
+        # Recursively decode all parts of the subpart
+        decode_message(subpart)
+
+    if boundary:
         output("\n--%s--\n" % boundary)
 
-        if msg.epilogue:
-            output(msg.epilogue)
+    if msg.epilogue:
+        output(msg.epilogue)
 
-    else:
-        if msg.has_key("Content-Type"): # Simple one-part message - decode it
-            decode_part(msg)
 
-        else: # Not a message, just text - copy it literally
-            output(msg.as_string())
+def decode_message(msg):
+    "Decode message"
+
+    if msg.is_multipart():
+        decode_multipart(msg)
+    elif msg.has_key("Content-Type"): # Simple one-part message - decode it
+        decode_part(msg)
+    else: # Not a message, just text - copy it literally
+        output(msg.as_string())
 
 
 class GlobalOptions:
@@ -350,9 +342,12 @@ if __name__ == "__main__":
     la = len(arguments)
     if la == 0:
         gopts.input_filename = '-'
-        gopts.output_filename = '-'
         infile = sys.stdin
-        outfile = sys.stdout
+        if gopts.output_filename:
+            outfile = open(gopts.output_filename, 'w')
+        else:
+            gopts.output_filename = '-'
+            outfile = sys.stdout
     elif la in (1, 2):
         if (arguments[0] == '-'):
             gopts.input_filename = '-'
@@ -388,7 +383,10 @@ if __name__ == "__main__":
         gopts.host_name = socket.gethostname()
 
     gopts.outfile = outfile
-    decode_file(infile)
+    output = outfile.write
 
-    infile.close()
-    outfile.close()
+    try:
+        decode_message(email.message_from_file(infile))
+    finally:
+        infile.close()
+        outfile.close()