Re: [evolution-patches] fix for bug #62771 (User-Agent doesn't get decoded in mail view)



On Wed, 2004-08-11 at 12:09 -0400, Jeffrey Stedfast wrote:
> On Wed, 2004-08-11 at 11:06 +0800, Not Zed wrote:
> > 
> > Don't like this, it just duplicates a bunch of code.  See attached
> > (totally untested but i think the logic is right).
> > 
> > I don't really like it as a ctext decoder anyway, it isn't actually
> > decoding to the rfc, it is just a simplistic scanner which will
> > 'probably work in most cases'.  e.g. it doesn't handle \ properly in
> > comments.  Then again, this is hardly a major issue.
> > 
> > The other problem is that it is necessarily a one-way conversion (you
> > will have to lose the comment structure), perhaps it should be called
> > _format rather than _decode, to match the rest of the api (i put this
> > in the patch). 
> > 
> 
> yea, I apparently overlooked 'quoted-pair', but I'm thinking we should
> handle it before committing a fix. if we're gonna do it, might as well
> do it right, etc.
> 
> I do agree that _format() might be a better name and as I mentioned in
> my original patch mail, I figured we should merge it into
> header_decode_text() as well.
> 
> I'll send an updated patch when I finish it.
> 
> Jeff
> 
> > 
> > Plain text document attachment (62771.b.diff)
> > Index: camel/camel-mime-utils.c
> > ===================================================================
> > RCS file: /cvs/gnome/evolution/camel/camel-mime-utils.c,v
> > retrieving revision 1.212
> > diff -u -3 -r1.212 camel-mime-utils.c
> > --- camel/camel-mime-utils.c	30 Jul 2004 15:30:38 -0000	1.212
> > +++ camel/camel-mime-utils.c	11 Aug 2004 03:03:33 -0000
> > @@ -57,6 +57,9 @@
> >  #include "broken-date-parser.h"
> >  #endif
> >  
> > +/* syntactic helper for more direct table lookups */
> > +#define cm_is_mask(x, m) ((camel_mime_special_table[(unsigned char)(x)] & (m)) == 0)
> > +
> >  #if 0
> >  int strdup_count = 0;
> >  int malloc_count = 0;
> > @@ -1119,13 +1122,15 @@
> >  }
> >  
> >  /* decodes a simple text, rfc822 + rfc2047 */
> > +/* If ctext is set, look for rfc2047 encoded words not separated by whitespace */
> >  static char *
> > -header_decode_text (const char *in, size_t inlen, const char *default_charset)
> > +header_decode_text (const char *in, size_t inlen, const char *default_charset, int ctext)
> >  {
> >  	GString *out;
> >  	const char *inptr, *inend, *start, *chunk, *locale_charset;
> >  	char *dword = NULL;
> > -	
> > +	int mask;
> > +
> >  	locale_charset = e_iconv_locale_charset ();
> >  	
> >  	out = g_string_new ("");
> > @@ -1133,9 +1138,14 @@
> >  	inend = inptr + inlen;
> >  	chunk = NULL;
> >  
> > +	if (ctext)
> > +		mask = (CAMEL_MIME_IS_SPECIAL|CAMEL_MIME_IS_SPACE|CAMEL_MIME_IS_CTRL);
> > +	else
> > +		mask = (CAMEL_MIME_IS_LWSP);
> > +
> >  	while (inptr < inend) {
> >  		start = inptr;
> > -		while (inptr < inend && camel_mime_is_lwsp(*inptr))
> > +		while (inptr < inend && !cm_is_mask(*inptr, mask))
> >  			inptr++;
> >  
> >  		if (inptr == inend) {
> > @@ -1148,7 +1158,7 @@
> >  		}
> >  
> >  		start = inptr;
> > -		while (inptr < inend && !camel_mime_is_lwsp(*inptr))
> > +		while (inptr < inend && cm_is_mask(*inptr, mask))
> >  			inptr++;
> >  
> >  		dword = rfc2047_decode_word(start, inptr-start);
> > @@ -1178,7 +1188,15 @@
> >  {
> >  	if (in == NULL)
> >  		return NULL;
> > -	return header_decode_text (in, strlen (in), default_charset);
> > +	return header_decode_text (in, strlen (in), default_charset, FALSE);
> > +}
> > +
> > +char *
> > +camel_header_format_ctext(const char *in, const char *default_charset)
> > +{
> > +	if (in == NULL)
> > +		return NULL;
> > +	return header_decode_text (in, strlen (in), default_charset, TRUE);
> >  }
> >  
> >  /* how long a sequence of pre-encoded words should be less than, to attempt to 
> > @@ -2830,7 +2848,7 @@
> >  	node->next = NULL;
> >  	node->name = name;
> >  	if (strncmp(value, "=?", 2) == 0
> > -	    && (node->value = header_decode_text(value, strlen(value), NULL))) {
> > +	    && (node->value = header_decode_text(value, strlen(value), NULL, FALSE))) {
> >  		g_free(value);
> >  	} else if (!g_utf8_validate(value, -1, NULL)) {
> >  		const char * charset = e_iconv_locale_charset();
> > Index: camel/camel-mime-utils.h
> > ===================================================================
> > RCS file: /cvs/gnome/evolution/camel/camel-mime-utils.h,v
> > retrieving revision 1.56
> > diff -u -3 -r1.56 camel-mime-utils.h
> > --- camel/camel-mime-utils.h	18 Jun 2004 20:07:09 -0000	1.56
> > +++ camel/camel-mime-utils.h	11 Aug 2004 03:03:33 -0000
> > @@ -193,6 +193,8 @@
> >  /* decode/encode a string type, like a subject line */
> >  char *camel_header_decode_string (const char *in, const char *default_charset);
> >  char *camel_header_encode_string (const unsigned char *in);
> > +/* decode ( text | comment ), this is a one-way op */
> > +char *camel_header_format_ctext(const char *in, const char *default_charset);
> >  
> >  /* encode a phrase, like the real name of an address */
> >  char *camel_header_encode_phrase (const unsigned char *in);
-- 
Jeffrey Stedfast
Evolution Hacker - Novell, Inc.
fejj ximian com  - www.novell.com
? 55303-2.patch
? 55303.patch
? 62377.patch
? 62771-mailer.patch
? mail-session.diff
? ms.c
Index: ChangeLog
===================================================================
RCS file: /cvs/gnome/evolution/mail/ChangeLog,v
retrieving revision 1.3430
diff -u -r1.3430 ChangeLog
--- ChangeLog	10 Aug 2004 19:10:06 -0000	1.3430
+++ ChangeLog	11 Aug 2004 16:48:52 -0000
@@ -1,3 +1,12 @@
+2004-08-10  Jeffrey Stedfast  <fejj novell com>
+
+	Partial fix for bug #62771
+
+	* em-format-quote.c (emfq_format_header): Same.
+
+	* em-format-html.c (efh_format_header): Decode the
+	X-Mailer/User-Agent headers.
+
 2004-08-06  Jeffrey Stedfast  <fejj novell com>
 
 	* em-folder-tree-model.c (em_folder_tree_model_get_selected):
Index: em-format-html.c
===================================================================
RCS file: /cvs/gnome/evolution/mail/em-format-html.c,v
retrieving revision 1.62
diff -u -r1.62 em-format-html.c
--- em-format-html.c	10 Jul 2004 01:31:04 -0000	1.62
+++ em-format-html.c	11 Aug 2004 16:48:53 -0000
@@ -1552,7 +1552,7 @@
 	} else if (!strcmp(name, "x-evolution-mailer")) {
 		/* pseudo-header */
 		label = _("Mailer");
-		txt = header->value;
+		txt = value = camel_header_format_ctext (header->value, charset);
 		flags |= EM_FORMAT_HEADER_BOLD;
 	} else if (!strcmp(name, "date") || !strcmp(name, "resent-date")) {
 		int msg_offset, local_tz;
Index: em-format-quote.c
===================================================================
RCS file: /cvs/gnome/evolution/mail/em-format-quote.c,v
retrieving revision 1.12
diff -u -r1.12 em-format-quote.c
--- em-format-quote.c	10 Jul 2004 01:31:04 -0000	1.12
+++ em-format-quote.c	11 Aug 2004 16:48:53 -0000
@@ -309,6 +309,8 @@
 			if (!(txt = camel_medium_get_header (part, "user-agent")))
 				return;
 		
+		txt = value = camel_header_format_ctext (txt, charset);
+		
 		label = _("Mailer");
 		flags |= EM_FORMAT_HEADER_BOLD;
 	} else if (!strcmp (name, "date") || !strcmp (name, "resent-date")) {
? 24026.patch
? 62136.patch
? 62771-camel.patch
? body
? body.c
? body.txt
? body2.txt
? build.patch
? charset-map.c
? charset-map.diff
? class.sh
? cmsutil.c
? date.patch
? flags
? foo
? foo.txt
? foo2.txt
? gw-body.txt
? iso
? iso.c
? lang.patch
? namespace.sh
? smime
? providers/imap4/reconnect.patch
? tests/data/camel-mime-tests.tar.gz
Index: ChangeLog
===================================================================
RCS file: /cvs/gnome/evolution/camel/ChangeLog,v
retrieving revision 1.2237
diff -u -r1.2237 ChangeLog
--- ChangeLog	6 Aug 2004 19:24:03 -0000	1.2237
+++ ChangeLog	11 Aug 2004 16:45:26 -0000
@@ -1,3 +1,15 @@
+2004-08-11  Jeffrey Stedfast  <fejj novell com>
+
+	Fix for bug #62771
+
+	* camel-mime-utils.c (string_append_quoted_pair): New function to
+	append a string of text that may contain quoted-pairs.
+	(header_decode_text): Now takes a ctext argument specifying
+	whether or not to expect comments and to handle them.
+	(camel_header_decode_string): Pass FALSE as ctext argument.
+	(camel_header_format_ctext): New function to format text|comment
+	header field bodies.
+
 2004-08-06  Jeffrey Stedfast  <fejj novell com>
 
 	* providers/imap4/camel-imap4-summary.c (untagged_fetch_all): Call
Index: camel-mime-utils.c
===================================================================
RCS file: /cvs/gnome/evolution/camel/camel-mime-utils.c,v
retrieving revision 1.212
diff -u -r1.212 camel-mime-utils.c
--- camel-mime-utils.c	30 Jul 2004 15:30:38 -0000	1.212
+++ camel-mime-utils.c	11 Aug 2004 16:45:26 -0000
@@ -1118,39 +1118,71 @@
 	
 }
 
+static void
+string_append_quoted_pair (GString *str, const char *in, int inlen)
+{
+	register const char *inptr = in;
+	const char *inend = in + inlen;
+	const char *start;
+	
+	while (inptr < inend) {
+		start = inptr;
+		while (inptr < inend && *inptr != '\\')
+			inptr++;
+		
+		g_string_append_len (str, start, inptr - start);
+		inptr++;
+		
+		if (inptr < inend)
+			g_string_append_c (str, *inptr++);
+	}
+}
+
 /* decodes a simple text, rfc822 + rfc2047 */
 static char *
-header_decode_text (const char *in, size_t inlen, const char *default_charset)
+header_decode_text (const char *in, size_t inlen, int ctext, const char *default_charset)
 {
 	GString *out;
 	const char *inptr, *inend, *start, *chunk, *locale_charset;
 	char *dword = NULL;
+	guint32 mask;
 	
 	locale_charset = e_iconv_locale_charset ();
 	
+	if (ctext)
+		mask = (CAMEL_MIME_IS_SPECIAL | CAMEL_MIME_IS_SPACE | CAMEL_MIME_IS_CTRL);
+	else
+		mask = (CAMEL_MIME_IS_LWSP);
+	
 	out = g_string_new ("");
 	inptr = in;
 	inend = inptr + inlen;
 	chunk = NULL;
-
+	
 	while (inptr < inend) {
 		start = inptr;
-		while (inptr < inend && camel_mime_is_lwsp(*inptr))
+		while (inptr < inend && camel_mime_is_type (*inptr, mask))
 			inptr++;
-
+		
 		if (inptr == inend) {
-			g_string_append_len(out, start, inptr-start);
+			if (ctext)
+				string_append_quoted_pair (out, start, inptr - start);
+			else
+				g_string_append_len (out, start, inptr - start);
 			break;
 		} else if (dword == NULL) {
-			g_string_append_len(out, start, inptr-start);
+			if (ctext)
+				string_append_quoted_pair (out, start, inptr - start);
+			else
+				g_string_append_len (out, start, inptr - start);
 		} else {
 			chunk = start;
 		}
-
+		
 		start = inptr;
-		while (inptr < inend && !camel_mime_is_lwsp(*inptr))
+		while (inptr < inend && !camel_mime_is_type (*inptr, mask))
 			inptr++;
-
+		
 		dword = rfc2047_decode_word(start, inptr-start);
 		if (dword) {
 			g_string_append(out, dword);
@@ -1178,7 +1210,15 @@
 {
 	if (in == NULL)
 		return NULL;
-	return header_decode_text (in, strlen (in), default_charset);
+	return header_decode_text (in, strlen (in), FALSE, default_charset);
+}
+
+char *
+camel_header_format_ctext (const char *in, const char *default_charset)
+{
+	if (in == NULL)
+		return NULL;
+	return header_decode_text (in, strlen (in), TRUE, default_charset);
 }
 
 /* how long a sequence of pre-encoded words should be less than, to attempt to 
@@ -2830,7 +2870,7 @@
 	node->next = NULL;
 	node->name = name;
 	if (strncmp(value, "=?", 2) == 0
-	    && (node->value = header_decode_text(value, strlen(value), NULL))) {
+	    && (node->value = header_decode_text(value, strlen(value), FALSE, NULL))) {
 		g_free(value);
 	} else if (!g_utf8_validate(value, -1, NULL)) {
 		const char * charset = e_iconv_locale_charset();
Index: camel-mime-utils.h
===================================================================
RCS file: /cvs/gnome/evolution/camel/camel-mime-utils.h,v
retrieving revision 1.56
diff -u -r1.56 camel-mime-utils.h
--- camel-mime-utils.h	18 Jun 2004 20:07:09 -0000	1.56
+++ camel-mime-utils.h	11 Aug 2004 16:45:26 -0000
@@ -194,6 +194,9 @@
 char *camel_header_decode_string (const char *in, const char *default_charset);
 char *camel_header_encode_string (const unsigned char *in);
 
+/* decode (text | comment) - a one-way op */
+char *camel_header_format_ctext (const char *in, const char *default_charset);
+
 /* encode a phrase, like the real name of an address */
 char *camel_header_encode_phrase (const unsigned char *in);
 

Attachment: smime.p7s
Description: S/MIME cryptographic signature



[Date Prev][Date Next]   [Thread Prev][Thread Next]   [Thread Index] [Date Index] [Author Index]