From a27acace6b1f0965ab995249c8607f1ae9a1724d Mon Sep 17 00:00:00 2001
From: helge <helge@d1b88da0-ebda-0310-925b-ed51d893ca5b>
Date: Tue, 5 Oct 2004 12:34:15 +0000
Subject: [PATCH] fixed content decoding

git-svn-id: http://svn.opengroupware.org/SOGo/trunk@357 d1b88da0-ebda-0310-925b-ed51d893ca5b
---
 SOGo/UI/Mailer/ChangeLog               |  8 ++++
 SOGo/UI/Mailer/UIxMailPartTextViewer.m | 23 ------------
 SOGo/UI/Mailer/UIxMailPartViewer.h     |  2 +
 SOGo/UI/Mailer/UIxMailPartViewer.m     | 51 ++++++++++++++++++++++++++
 SOGo/UI/Mailer/Version                 |  2 +-
 5 files changed, 62 insertions(+), 24 deletions(-)

diff --git a/SOGo/UI/Mailer/ChangeLog b/SOGo/UI/Mailer/ChangeLog
index 7d4259c3..12789f63 100644
--- a/SOGo/UI/Mailer/ChangeLog
+++ b/SOGo/UI/Mailer/ChangeLog
@@ -1,5 +1,13 @@
 2004-10-05  Helge Hess  <helge.hess@opengroupware.org>
 
+	* v0.9.19
+
+	* UIxMailPartViewer.m: added content decoding for QP, base64 and 7bit,
+	  added proper charset decoding
+	
+	* UIxMailPartTextViewer.m: moved content => NSString conversion to
+	  UIxMailPartViewer.m
+	
 	* v0.9.18
 	
 	* UIxMailPartViewer.m: added support methods for caches, added -sleep
diff --git a/SOGo/UI/Mailer/UIxMailPartTextViewer.m b/SOGo/UI/Mailer/UIxMailPartTextViewer.m
index d0c28c2a..990a4060 100644
--- a/SOGo/UI/Mailer/UIxMailPartTextViewer.m
+++ b/SOGo/UI/Mailer/UIxMailPartTextViewer.m
@@ -37,27 +37,4 @@
 
 /* accessors */
 
-- (NSString *)flatContentAsString {
-  /* Note: we even have the line count in the body-info! */
-  NSString *charset, *enc;
-  NSString *s;
-  NSData   *content;
-  
-  if ((content = [self flatContent]) == nil) {
-    [self logWithFormat:@"ERROR: got no text content: %@", [self partPath]];
-    return nil;
-  }
-
-  charset =
-    [[[self bodyInfo] objectForKey:@"parameterList"] objectForKey:@"charset"];
-  enc = [[self bodyInfo] objectForKey:@"encoding"];
-
-  // TODO: properly decode charset, might need to handle encoding?
-  
-  s = [[NSString alloc] initWithData:content encoding:NSUTF8StringEncoding];
-  if (s == nil)
-    [self logWithFormat:@"ERROR: could not convert content to text!"];
-  return [s autorelease];
-}
-
 @end /* UIxMailPartTextViewer */
diff --git a/SOGo/UI/Mailer/UIxMailPartViewer.h b/SOGo/UI/Mailer/UIxMailPartViewer.h
index a5551f08..551085e7 100644
--- a/SOGo/UI/Mailer/UIxMailPartViewer.h
+++ b/SOGo/UI/Mailer/UIxMailPartViewer.h
@@ -48,6 +48,8 @@
 - (id)bodyInfo;
 
 - (NSData *)flatContent;
+- (NSData *)decodedFlatContent;
+- (NSString *)flatContentAsString;
 
 /* caches */
 
diff --git a/SOGo/UI/Mailer/UIxMailPartViewer.m b/SOGo/UI/Mailer/UIxMailPartViewer.m
index e172aac4..f032bb7b 100644
--- a/SOGo/UI/Mailer/UIxMailPartViewer.m
+++ b/SOGo/UI/Mailer/UIxMailPartViewer.m
@@ -22,6 +22,7 @@
 #include "UIxMailPartViewer.h"
 #include "UIxMailRenderingContext.h"
 #include "WOContext+UIxMailer.h"
+#include <NGExtensions/NSString+Encoding.h>
 #include "common.h"
 
 @implementation UIxMailPartViewer
@@ -81,4 +82,54 @@
   return self->flatContent;
 }
 
+- (NSData *)decodedFlatContent {
+  NSString *enc;
+  
+  enc = [[[self bodyInfo] objectForKey:@"encoding"] lowercaseString];
+  
+  if ([enc isEqualToString:@"7bit"])
+    return [self flatContent];
+  
+  if ([enc isEqualToString:@"base64"])
+    return [[self flatContent] dataByDecodingBase64];
+
+  if ([enc isEqualToString:@"quoted-printable"])
+    return [[self flatContent] dataByDecodingQuotedPrintable];
+  
+  [self logWithFormat:@"ERROR: unsupported MIME encoding: %@", enc];
+  return [self flatContent];
+}
+
+- (NSString *)flatContentAsString {
+  /* Note: we even have the line count in the body-info! */
+  NSString *charset;
+  NSString *s;
+  NSData   *content;
+  
+  if ((content = [self decodedFlatContent]) == nil) {
+    [self logWithFormat:@"ERROR: got no text content: %@", [self partPath]];
+    return nil;
+  }
+  
+  charset =
+    [[[self bodyInfo] objectForKey:@"parameterList"] objectForKey:@"charset"];
+  charset = [charset lowercaseString];
+  
+  // TODO: properly decode charset, might need to handle encoding?
+  
+  if ([charset length] > 0) {
+    s = [NSString stringWithData:content usingEncodingNamed:charset];
+  }
+  else {
+    s = [[NSString alloc] initWithData:content encoding:NSUTF8StringEncoding];
+    s = [s autorelease];
+  }
+  if (s == nil) {
+    [self logWithFormat:
+	    @"ERROR: could not convert content to text, charset: '%@'",
+	    charset];
+  }
+  return s;
+}
+
 @end /* UIxMailPartViewer */
diff --git a/SOGo/UI/Mailer/Version b/SOGo/UI/Mailer/Version
index cd35ad0f..93c8cd1d 100644
--- a/SOGo/UI/Mailer/Version
+++ b/SOGo/UI/Mailer/Version
@@ -1,3 +1,3 @@
 # $Id$
 
-SUBMINOR_VERSION:=18
+SUBMINOR_VERSION:=19
-- 
2.39.5