/*
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) version 3.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with the program; if not, see <http://www.gnu.org/licenses/>
*
*
* Authors:
* Jeffrey Stedfast <fejj@ximian.com>
*
* Copyright (C) 1999-2008 Novell, Inc. (www.novell.com)
*
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <string.h>
#include <glib/gi18n.h>
#include <gconf/gconf-client.h>
#include "em-stripsig-filter.h"
#include "em-format-quote.h"
struct _EMFormatQuotePrivate {
gint dummy;
};
static void emfq_format_clone(EMFormat *, CamelFolder *, const gchar *, CamelMimeMessage *, EMFormat *);
static void emfq_format_error(EMFormat *emf, CamelStream *stream, const gchar *txt);
static void emfq_format_message(EMFormat *, CamelStream *, CamelMimePart *, const EMFormatHandler *);
static void emfq_format_source(EMFormat *, CamelStream *, CamelMimePart *);
static void emfq_format_attachment(EMFormat *, CamelStream *, CamelMimePart *, const gchar *, const EMFormatHandler *);
static void emfq_builtin_init(EMFormatQuoteClass *efhc);
static gpointer parent_class;
static void
emfq_init(GObject *o)
{
EMFormatQuote *emfq =(EMFormatQuote *) o;
/* we want to convert url's etc */
emfq->text_html_flags = CAMEL_MIME_FILTER_TOHTML_PRE | CAMEL_MIME_FILTER_TOHTML_CONVERT_URLS
| CAMEL_MIME_FILTER_TOHTML_CONVERT_ADDRESSES;
}
static void
emfq_finalize (GObject *object)
{
EMFormatQuote *emfq =(EMFormatQuote *) object;
if (emfq->stream)
g_object_unref (emfq->stream);
g_free(emfq->credits);
/* Chain up to parent's finalize() method. */
G_OBJECT_CLASS (parent_class)->finalize (object);
}
static void
emfq_base_init(EMFormatQuoteClass *emfqclass)
{
emfq_builtin_init(emfqclass);
}
static void
emfq_class_init (EMFormatQuoteClass *class)
{
GObjectClass *object_class;
EMFormatClass *format_class;
parent_class = g_type_class_peek_parent (class);
g_type_class_add_private (class, sizeof (EMFormatQuotePrivate));
object_class = G_OBJECT_CLASS (class);
object_class->finalize = emfq_finalize;
format_class = EM_FORMAT_CLASS (class);
format_class->format_clone = emfq_format_clone;
format_class->format_error = emfq_format_error;
format_class->format_source = emfq_format_source;
format_class->format_attachment = emfq_format_attachment;
}
GType
em_format_quote_get_type (void)
{
static GType type = 0;
if (G_UNLIKELY (type == 0)) {
static const GTypeInfo type_info = {
sizeof (EMFormatQuoteClass),
(GBaseInitFunc) emfq_base_init,
(GBaseFinalizeFunc) NULL,
(GClassInitFunc) emfq_class_init,
(GClassFinalizeFunc) NULL,
NULL, /* class_data */
sizeof (EMFormatQuote),
0, /* n_preallocs */
(GInstanceInitFunc) emfq_init,
NULL /* value_table */
};
type = g_type_register_static (
EM_TYPE_FORMAT, "EMFormatQuote", &type_info, 0);
}
return type;
}
EMFormatQuote *
em_format_quote_new (const gchar *credits,
CamelStream *stream,
guint32 flags)
{
EMFormatQuote *emfq;
emfq = g_object_new (EM_TYPE_FORMAT_QUOTE, NULL);
emfq->credits = g_strdup (credits);
emfq->stream = stream;
g_object_ref (stream);
emfq->flags = flags;
return emfq;
}
static void
emfq_format_empty_line(EMFormat *emf, CamelStream *stream, CamelMimePart *part, const EMFormatHandler *info)
{
camel_stream_printf(stream, "<br>\n");
}
static void
emfq_format_clone(EMFormat *emf, CamelFolder *folder, const gchar *uid, CamelMimeMessage *msg, EMFormat *src)
{
EMFormatQuote *emfq = (EMFormatQuote *) emf;
const EMFormatHandler *handle;
GConfClient *gconf;
/* Chain up to parent's format_clone() method. */
EM_FORMAT_CLASS (parent_class)->format_clone (emf, folder, uid, msg, src);
gconf = gconf_client_get_default ();
camel_stream_reset(emfq->stream);
if (gconf_client_get_bool(gconf, "/apps/evolution/mail/composer/top_signature", NULL))
emfq_format_empty_line(emf, emfq->stream, (CamelMimePart *)msg, NULL);
g_object_unref (gconf);
handle = em_format_find_handler(emf, "x-evolution/message/prefix");
if (handle)
handle->handler(emf, emfq->stream, (CamelMimePart *)msg, handle, FALSE);
handle = em_format_find_handler(emf, "x-evolution/message/rfc822");
if (handle)
handle->handler(emf, emfq->stream, (CamelMimePart *)msg, handle, FALSE);
camel_stream_flush(emfq->stream);
g_signal_emit_by_name(emf, "complete");
}
static void
emfq_format_error(EMFormat *emf, CamelStream *stream, const gchar *txt)
{
/* FIXME: should we even bother writing error text for quoting? probably not... */
}
static void
emfq_format_text_header (EMFormatQuote *emfq, CamelStream *stream, const gchar *label, const gchar *value, guint32 flags, gint is_html)
{
const gchar *html;
gchar *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)
camel_stream_printf (stream, "<b>%s</b>: %s<br>", label, html);
else
camel_stream_printf (stream, "%s: %s<br>", label, html);
g_free (mhtml);
}
static const gchar *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 gchar *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;
gchar *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) {
gchar *real, *mailaddr;
g_string_append_printf (out, "%s <", name);
/* rfc2368 for mailto syntax and url encoding extras */
if ((real = camel_header_encode_phrase ((guchar *)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, "?=&()");
}
} 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, ">");
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
canon_header_name (gchar *name)
{
gchar *inptr = name;
/* canonicalise the header name... first letter is
* capitalised and any letter following a '-' also gets
* capitalised */
if (*inptr >= 'a' && *inptr <= 'z')
*inptr -= 0x20;
inptr++;
while (*inptr) {
if (inptr[-1] == '-' && *inptr >= 'a' && *inptr <= 'z')
*inptr -= 0x20;
else if (*inptr >= 'A' && *inptr <= 'Z')
*inptr += 0x20;
inptr++;
}
}
static void
emfq_format_header (EMFormat *emf, CamelStream *stream, CamelMedium *part, const gchar *namein, guint32 flags, const gchar *charset)
{
CamelMimeMessage *msg = (CamelMimeMessage *) part;
EMFormatQuote *emfq = (EMFormatQuote *) emf;
gchar *name, *buf, *value = NULL;
const gchar *txt, *label;
gboolean addrspec = FALSE;
gint is_html = FALSE;
gint i;
name = g_alloca (strlen (namein) + 1);
strcpy (name, namein);
canon_header_name (name);
for (i = 0; addrspec_hdrs[i]; i++) {
if (!strcmp (name, addrspec_hdrs[i])) {
addrspec = TRUE;
break;
}
}
label = _(name);
if (addrspec) {
struct _camel_header_address *addrs;
GString *html;
if (!(txt = camel_medium_get_header (part, name)))
return;
buf = camel_header_unfold (txt);
if (!(addrs = camel_header_address_decode (txt, emf->charset ? emf->charset : emf->default_charset))) {
g_free (buf);
return;
}
g_free (buf);
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")))
if (!(txt = camel_medium_get_header (part, "x-newsreader")))
if (!(txt = camel_medium_get_header (part, "x-mimeole")))
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")) {
if (!(txt = camel_medium_get_header (part, name)))
return;
flags |= EM_FORMAT_HEADER_BOLD;
} else {
txt = camel_medium_get_header (part, name);
buf = camel_header_unfold (txt);
txt = value = camel_header_decode_string (txt, charset);
g_free (buf);
}
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 gchar *charset;
GList *link;
if (!part)
return;
ct = camel_mime_part_get_content_type ((CamelMimePart *) part);
charset = camel_content_type_param (ct, "charset");
charset = camel_iconv_charset_name (charset);
/* dump selected headers */
link = g_queue_peek_head_link (&emf->header_list);
while (link != NULL) {
EMFormatHeader *h = link->data;
emfq_format_header (
emf, stream, part, h->name, h->flags, charset);
link = g_list_next (link);
}
camel_stream_printf(stream, "<br>\n");
}
static void
emfq_format_message_prefix(EMFormat *emf, CamelStream *stream, CamelMimePart *part, const EMFormatHandler *info)
{
EMFormatQuote *emfq = (EMFormatQuote *) emf;
if (emfq->credits)
camel_stream_printf(stream, "%s<br>\n", emfq->credits);
}
static void
emfq_format_message(EMFormat *emf, CamelStream *stream, CamelMimePart *part, const EMFormatHandler *info)
{
EMFormatQuote *emfq = (EMFormatQuote *) emf;
if (emfq->flags & EM_FORMAT_QUOTE_CITE)
camel_stream_printf(stream, "<!--+GtkHTML:<DATA class=\"ClueFlow\" key=\"orig\" value=\"1\">-->\n"
"<blockquote type=cite>\n");
if (((CamelMimePart *)emf->message) != part) {
camel_stream_printf(stream, "%s</br>\n", _("-------- Forwarded Message --------"));
emfq_format_headers (emfq, stream, (CamelMedium *)part);
} else if (emfq->flags & EM_FORMAT_QUOTE_HEADERS)
emfq_format_headers (emfq, stream, (CamelMedium *)part);
em_format_part (emf, stream, part);
if (emfq->flags & EM_FORMAT_QUOTE_CITE)
camel_stream_write_string(stream, "</blockquote><!--+GtkHTML:<DATA class=\"ClueFlow\" clear=\"orig\">-->");
}
static void
emfq_format_source(EMFormat *emf, CamelStream *stream, CamelMimePart *part)
{
CamelStream *filtered_stream;
CamelMimeFilter *html_filter;
filtered_stream = camel_stream_filter_new ((CamelStream *) stream);
html_filter = camel_mime_filter_tohtml_new (CAMEL_MIME_FILTER_TOHTML_CONVERT_NL
| CAMEL_MIME_FILTER_TOHTML_CONVERT_SPACES
| CAMEL_MIME_FILTER_TOHTML_ESCAPE_8BIT, 0);
camel_stream_filter_add (
CAMEL_STREAM_FILTER (filtered_stream), html_filter);
g_object_unref (html_filter);
em_format_format_text(emf, (CamelStream *)filtered_stream, (CamelDataWrapper *)part);
g_object_unref (filtered_stream);
}
static void
emfq_format_attachment(EMFormat *emf, CamelStream *stream, CamelMimePart *part, const gchar *mime_type, const EMFormatHandler *handle)
{
if (handle && em_format_is_inline(emf, emf->part_id->str, part, handle)) {
gchar *text, *html;
camel_stream_write_string(stream,
"<table border=1 cellspacing=0 cellpadding=0><tr><td><font size=-1>\n");
/* output some info about it */
text = em_format_describe_part(part, mime_type);
html = camel_text_to_html(text, ((EMFormatQuote *)emf)->text_html_flags & CAMEL_MIME_FILTER_TOHTML_CONVERT_URLS, 0);
camel_stream_write_string(stream, html);
g_free(html);
g_free(text);
camel_stream_write_string(stream, "</font></td></tr></table>");
handle->handler(emf, stream, part, handle, FALSE);
}
}
static void
emfq_text_plain(EMFormatQuote *emfq, CamelStream *stream, CamelMimePart *part, EMFormatHandler *info)
{
CamelStream *filtered_stream;
CamelMimeFilter *html_filter;
CamelMimeFilter *sig_strip;
CamelContentType *type;
const gchar *format;
guint32 rgb = 0x737373, flags;
if (!part)
return;
flags = emfq->text_html_flags;
/* Check for RFC 2646 flowed text. */
type = camel_mime_part_get_content_type(part);
if (camel_content_type_is(type, "text", "plain")
&& (format = camel_content_type_param(type, "format"))
&& !g_ascii_strcasecmp(format, "flowed"))
flags |= CAMEL_MIME_FILTER_TOHTML_FORMAT_FLOWED;
filtered_stream = camel_stream_filter_new (stream);
if ((emfq->flags & EM_FORMAT_QUOTE_KEEP_SIG) == 0) {
sig_strip = em_stripsig_filter_new ();
camel_stream_filter_add (
CAMEL_STREAM_FILTER (filtered_stream), sig_strip);
g_object_unref (sig_strip);
}
html_filter = camel_mime_filter_tohtml_new(flags, rgb);
camel_stream_filter_add (
CAMEL_STREAM_FILTER (filtered_stream), html_filter);
g_object_unref (html_filter);
em_format_format_text((EMFormat *)emfq, (CamelStream *)filtered_stream, (CamelDataWrapper *)part);
camel_stream_flush((CamelStream *)filtered_stream);
g_object_unref (filtered_stream);
}
static void
emfq_text_enriched(EMFormatQuote *emfq, CamelStream *stream, CamelMimePart *part, EMFormatHandler *info)
{
CamelStream *filtered_stream;
CamelMimeFilter *enriched;
guint32 flags = 0;
if (!strcmp(info->mime_type, "text/richtext")) {
flags = CAMEL_MIME_FILTER_ENRICHED_IS_RICHTEXT;
camel_stream_write_string(stream, "\n<!-- text/richtext -->\n");
} else {
camel_stream_write_string(stream, "\n<!-- text/enriched -->\n");
}
enriched = camel_mime_filter_enriched_new(flags);
filtered_stream = camel_stream_filter_new (stream);
camel_stream_filter_add (
CAMEL_STREAM_FILTER (filtered_stream), enriched);
g_object_unref (enriched);
camel_stream_write_string(stream, "<br><hr><br>");
em_format_format_text((EMFormat *)emfq, (CamelStream *)filtered_stream, (CamelDataWrapper *)part);
g_object_unref (filtered_stream);
}
static void
emfq_text_html(EMFormat *emf, CamelStream *stream, CamelMimePart *part, EMFormatHandler *info)
{
camel_stream_write_string(stream, "\n<!-- text/html -->\n");
em_format_format_text(emf, stream, (CamelDataWrapper *)part);
}
static void
emfq_ignore(EMFormat *emf, CamelStream *stream, CamelMimePart *part, EMFormatHandler *info)
{
/* NOOP */
}
static EMFormatHandler type_builtin_table[] = {
{ (gchar *) "text/plain", (EMFormatFunc)emfq_text_plain },
{ (gchar *) "text/enriched", (EMFormatFunc)emfq_text_enriched },
{ (gchar *) "text/richtext", (EMFormatFunc)emfq_text_enriched },
{ (gchar *) "text/html", (EMFormatFunc)emfq_text_html },
{ (gchar *) "text/*", (EMFormatFunc)emfq_text_plain },
/* { (gchar *) "multipart/related",(EMFormatFunc)emfq_multipart_related },*/
{ (gchar *) "message/external-body", (EMFormatFunc)emfq_ignore },
{ (gchar *) "multipart/appledouble", (EMFormatFunc)emfq_ignore },
/* internal evolution types */
{ (gchar *) "x-evolution/evolution-rss-feed", (EMFormatFunc)emfq_text_html },
{ (gchar *) "x-evolution/message/rfc822", (EMFormatFunc)emfq_format_message },
{ (gchar *) "x-evolution/message/prefix", (EMFormatFunc)emfq_format_message_prefix },
};
static void
emfq_builtin_init(EMFormatQuoteClass *efhc)
{
gint i;
for (i = 0; i < G_N_ELEMENTS (type_builtin_table); i++)
em_format_class_add_handler((EMFormatClass *)efhc, &type_builtin_table[i]);
}
