Print the headers when forwarding inline/quoted. Fixes bug #53916.

2004-02-23  Jeffrey Stedfast  <fejj@ximian.com>

	* em-format-quote.c (emfq_format_message): Print the headers when
	forwarding inline/quoted. Fixes bug #53916.

svn path=/trunk/; revision=24833

1 files changed, 208 insertions, 6 deletions

diff --git a/mail/em-format-quote.c b/mail/em-format-quote.c
index 3d242c0956..c0b7855f58 100644
--- a/mail/em-format-quote.c
+++ b/mail/em-format-quote.c
@@ -30,6 +30,12 @@
 #include <camel/camel-stream-filter.h>
 #include <camel/camel-mime-filter-tohtml.h>
 #include <camel/camel-mime-filter-enriched.h>
+#include <camel/camel-string-utils.h>
+#include <camel/camel-mime-message.h>
+#include <camel/camel-url.h>
+
+#include <gal/util/e-iconv.h>
+
 #include "em-format-quote.h"
 
 struct _EMFormatQuotePrivate {
@@ -147,6 +153,203 @@ emfq_format_error(EMFormat *emf, CamelStream *stream, const char *txt)
 }
 
 static void
+emfq_format_text_header (EMFormatQuote *emfq, CamelStream *stream, const char *label, const char *value, guint32 flags, int is_html)
+{
+	const char *fmt, *html;
+	char *mhtml = NULL;
+	
+	if (value == NULL)
+		return;
+	
+	while (*value == ' ')
+		value++;
+	
+	if (!is_html)
+		html = mhtml = camel_text_to_html (value, 0, 0);
+	else
+		html = value;
+	
+	if (flags & EM_FORMAT_HEADER_BOLD)
+		fmt = "<b>%s</b>: %s<br>";
+	else
+		fmt = "%s: %s<br>";
+	
+	camel_stream_printf (stream, fmt, label, html);
+	g_free (mhtml);
+}
+
+static char *addrspec_hdrs[] = {
+	"sender", "from", "reply-to", "to", "cc", "bcc",
+	"resent-sender", "resent-from", "resent-reply-to",
+	"resent-to", "resent-cc", "resent-bcc", NULL
+};
+
+#if 0
+/* FIXME: include Sender and Resent-* headers too? */
+/* For Translators only: The following strings are used in the header table in the preview pane */
+static char *i18n_hdrs[] = {
+	N_("From"), N_("Reply-To"), N_("To"), N_("Cc"), N_("Bcc")
+};
+#endif
+
+static void
+emfq_format_address (GString *out, struct _camel_header_address *a)
+{
+	guint32 flags = CAMEL_MIME_FILTER_TOHTML_CONVERT_SPACES;
+	char *name, *mailto, *addr;
+	
+	while (a) {
+		if (a->name)
+			name = camel_text_to_html (a->name, flags, 0);
+		else
+			name = NULL;
+		
+		switch (a->type) {
+		case CAMEL_HEADER_ADDRESS_NAME:
+			if (name && *name) {
+				char *real, *mailaddr;
+
+				g_string_append_printf (out, "%s &lt;", name);
+				/* rfc2368 for mailto syntax and url encoding extras */
+				real = camel_header_encode_phrase (a->name);
+				mailaddr = g_strdup_printf ("%s <%s>", real, a->v.addr);
+				g_free (real);
+				mailto = camel_url_encode (mailaddr, "?=&()");
+				g_free (mailaddr);
+			} else {
+				mailto = camel_url_encode (a->v.addr, "?=&()");
+			}
+			addr = camel_text_to_html (a->v.addr, flags, 0);
+			g_string_append_printf (out, "<a href=\"mailto:%s\">%s</a>", mailto, addr);
+			g_free (mailto);
+			g_free (addr);
+			
+			if (name && *name)
+				g_string_append (out, "&gt;");
+			break;
+		case CAMEL_HEADER_ADDRESS_GROUP:
+			g_string_append_printf (out, "%s: ", name);
+			emfq_format_address (out, a->v.members);
+			g_string_append_printf (out, ";");
+			break;
+		default:
+			g_warning ("Invalid address type");
+			break;
+		}
+		
+		g_free (name);
+		
+		a = a->next;
+		if (a)
+			g_string_append (out, ", ");
+	}
+}
+
+static void
+emfq_format_header (EMFormat *emf, CamelStream *stream, CamelMedium *part, const char *namein, guint32 flags, const char *charset)
+{
+	CamelMimeMessage *msg = (CamelMimeMessage *) part;
+	EMFormatQuote *emfq = (EMFormatQuote *) emf;
+	char *name, *value = NULL, *p;
+	const char *txt, *label;
+	int addrspec = 0, i;
+	int is_html = FALSE;
+	
+	name = g_alloca (strlen (namein) + 1);
+	strcpy (name, namein);
+	camel_strdown (name);
+	
+	for (i = 0; addrspec_hdrs[i]; i++) {
+		if (!strcmp (name, addrspec_hdrs[i])) {
+			addrspec = 1;
+			break;
+		}
+	}
+	
+	if (addrspec) {
+		struct _camel_header_address *addrs;
+		GString *html;
+		
+		if (!(txt = camel_medium_get_header (part, name)))
+			return;
+		
+		if (!(addrs = camel_header_address_decode (txt, emf->charset ? emf->charset : emf->default_charset)))
+			return;
+		
+		/* canonicalise the header name... first letter is
+		 * capitalised and any letter following a '-' also gets
+		 * capitalised */
+		p = name;
+		*p -= 0x20;
+		do {
+			p++;
+			if (p[-1] == '-' && *p >= 'a' && *p <= 'z')
+				*p -= 0x20;
+		} while (*p);
+		
+		label = _(name);
+		
+		html = g_string_new ("");
+		emfq_format_address (html, addrs);
+		camel_header_address_unref (addrs);
+		txt = value = html->str;
+		g_string_free (html, FALSE);
+		flags |= EM_FORMAT_HEADER_BOLD;
+		is_html = TRUE;
+	} else if (!strcmp (name, "subject")) {
+		txt = camel_mime_message_get_subject (msg);
+		label = _("Subject");
+		flags |= EM_FORMAT_HEADER_BOLD;
+	} else if (!strcmp (name, "x-evolution-mailer")) { /* pseudo-header */
+		if (!(txt = camel_medium_get_header (part, "x-mailer")))
+			if (!(txt = camel_medium_get_header (part, "user-agent")))
+				return;
+		
+		label = _("Mailer");
+		flags |= EM_FORMAT_HEADER_BOLD;
+	} else if (!strcmp (name, "date") || !strcmp (name, "resent-date")) {
+		if (!(txt = camel_medium_get_header (part, name)))
+			return;
+		
+		if (!strcmp (name, "date"))
+			label = _("Date");
+		else
+			label = "Resent-Date";
+		
+		flags |= EM_FORMAT_HEADER_BOLD;
+	} else {
+		txt = camel_medium_get_header (part, name);
+		value = camel_header_decode_string (txt, charset);
+		txt = value;
+		label = namein;
+	}
+	
+	emfq_format_text_header (emfq, stream, label, txt, flags, is_html);
+	
+	g_free (value);
+}
+
+static void
+emfq_format_headers (EMFormatQuote *emfq, CamelStream *stream, CamelMedium *part)
+{
+	EMFormat *emf = (EMFormat *) emfq;
+	CamelContentType *ct;
+	const char *charset;
+	EMFormatHeader *h;
+	
+	ct = camel_mime_part_get_content_type ((CamelMimePart *) part);
+	charset = camel_content_type_param (ct, "charset");
+	charset = e_iconv_charset_name (charset);	
+	
+	/* dump selected headers */
+	h = (EMFormatHeader *) emf->header_list.head;
+	while (h->next) {
+		emfq_format_header (emf, stream, part, h->name, h->flags, charset);
+		h = h->next;
+	}
+}
+
+static void
 emfq_format_message(EMFormat *emf, CamelStream *stream, CamelMedium *part)
 {
 	EMFormatQuote *emfq = (EMFormatQuote *) emf;
@@ -160,12 +363,11 @@ emfq_format_message(EMFormat *emf, CamelStream *stream, CamelMedium *part)
 				    "<font color=\"#%06x\">\n",
 				    emfq->citation_colour & 0xffffff);
 	
-	if (emfq->flags & EM_FORMAT_QUOTE_HEADERS) {
-		camel_stream_printf(stream, "<b>To: </b> Header goes here<br>");
-	}
-
-	em_format_part(emf, stream, (CamelMimePart *)part);
-
+	if (emfq->flags & EM_FORMAT_QUOTE_HEADERS)
+		emfq_format_headers (emfq, stream, part);
+	
+	em_format_part (emf, stream, (CamelMimePart *) part);
+	
 	if (emfq->flags & EM_FORMAT_QUOTE_CITE)
 		camel_stream_write_string(stream, "</blockquote></font><!--+GtkHTML:<DATA class=\"ClueFlow\" clear=\"orig\">-->");
 }